Bending-resistant hydraulic rubber pipe

Abstract

The utility model belongs to the technical field of rubber pipes, and discloses a bending-resistant hydraulic rubber pipe which comprises an inner base pipe made of rubber materials. The buffer structure is arranged on the outer surface of the inner base pipe; the reinforcing layer is arranged on the outer surface of the buffer structure; the outer layer pipe is made of rubber materials and arranged on the outer surface of the reinforcing layer, and an inner coating is sprayed on the inner cavity wall of the inner base pipe and used for reducing the friction coefficient of an inner cavity of the inner base pipe so as to reduce dirt residues. The inner coating is one of a polytetrafluoroethylene coating, a polyvinylidene fluoride coating, a polyimide coating, a polyurethane coating and a polyether ketone coating, the buffer structure comprises an inner buffer layer, and the inner buffer layer is arranged on the outer surface of the inner base pipe. According to the hydraulic rubber pipe, the bending resistance and the strength of the hydraulic rubber pipe can be improved, the phenomenon that conveyed liquid leaks due to overlarge pressure is avoided, and the service life of the hydraulic rubber pipe can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber tubes, in particular to an anti-bending hydraulic rubber tube. Background Art

[0002] Anti-bending hydraulic rubber hose, also known as high-pressure hose, is a pipe used to transport high-pressure liquids and gases. Its interior is made of a variety of reinforcing materials, and its exterior is wrapped by outer and inner layers of rubber materials. It has the advantages of wear resistance, pressure resistance, corrosion resistance, bending resistance, and tensile resistance. It is mostly used for transporting water, air, gas, oil and other media.

[0003] When transporting high-pressure liquids through existing hydraulic rubber hoses, the inventors have gradually discovered that since the liquid has a certain pressure during the circulation and transportation process, the liquid can easily generate excessive local pressure on the wall of the hydraulic hose during transportation, causing the hydraulic rubber to bend, crack and fracture, resulting in leakage of the transported liquid. Therefore, we have proposed a bending-resistant hydraulic rubber hose. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the inventors have conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0005] Specifically, the technical problem to be solved by the present invention is to provide a bending-resistant hydraulic rubber hose to solve the current technical problem that due to the certain pressure of the liquid during the circulation and transportation process, the liquid can easily produce excessive local pressure on the wall of the hydraulic hose during transportation, causing the hydraulic rubber to bend, rupture and fault, resulting in leakage of the transported liquid.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A bending-resistant hydraulic rubber tube comprises: an inner base tube made of rubber material;

[0008] a buffer structure, the buffer structure being provided on the outer surface of the inner base tube;

[0009] a reinforcement layer, the reinforcement layer being provided on the outer surface of the buffer structure;

[0010] An outer layer tube is made of rubber material and is arranged on the outer surface of the reinforcement layer.

[0011] As an improved technical solution, an inner coating is sprayed on the inner cavity wall of the inner base tube, and the inner coating is used to reduce the friction coefficient of the inner cavity of the inner base tube to reduce dirt residue.

[0012] As an improved technical solution, the inner coating is one of a polytetrafluoroethylene coating, a polyvinylidene fluoride coating, a polyimide coating, a polyurethane coating and a polyetherketone coating.

[0013] As an improved technical solution, the buffer structure includes an inner buffer layer, which is arranged on the outer surface of the inner base pipe, the outer surface of the inner buffer layer is provided with a reinforcement layer, the outer surface of the reinforcement layer is provided with an outer buffer layer, and the reinforcement layer is provided on the outer surface of the outer buffer layer.

[0014] As an improved technical solution, a plurality of inner buffer cavities are opened inside the inner buffer layer, and the plurality of inner buffer cavities are arranged in a circular array.

[0015] As an improved technical solution, the reinforcement layer is formed by interweaving, braiding or winding a plurality of nylon fibers and a plurality of aramid fibers.

[0016] As an improved technical solution, a plurality of outer buffer cavities are opened inside the outer buffer layer, and the plurality of outer buffer cavities are arranged in a circular array.

[0017] As an improved technical solution, the reinforcement layer is formed by winding steel strips.

[0018] As an improved technical solution, a plurality of wear-resistant strips are integrally formed on the outer surface of the outer layer tube, and the plurality of wear-resistant strips are arranged in a circular array.

[0019] After adopting the above technical solution, the beneficial effects of the utility model are:

[0020] 1. The utility model sequentially arranges an inner buffer layer, a reinforcing layer and a reinforcing layer on the outer surface of an inner base pipe, and the reinforcing layer is formed by interweaving, braiding or winding a plurality of nylon and a plurality of aramid fibers. When the water pressure of the liquid is too high, shock waves or pressure pulsations will be generated in the inner base pipe. At this time, the inner buffer cavity and the outer buffer cavity can reduce the pressure by absorbing these pulsations. At the same time, the reinforcing layer prevents the inner base pipe from leaking the conveyed liquid due to excessive pressure, thereby improving the bending resistance of the hydraulic rubber hose, preventing the conveyed liquid from leaking due to excessive pressure, and thus extending the service life of the hydraulic rubber hose.

[0021] 2. The utility model sprays an inner coating on the inner cavity wall of the inner base tube. The coating has the characteristics of acid, alkali resistance and resistance to various organic solvents, which can effectively increase the corrosion resistance of the inner base tube. The friction coefficient of the coating is extremely low, thereby extending the service life of the inner base tube. At the same time, the inner cavity wall of the inner base tube can be made smoother to reduce dirt residue.

[0022] 3. The utility model has a wide variety of coatings, and different types can be sprayed according to specific application scenarios. It has a wide range of applications and is easy to use.

[0023] 4. The utility model provides a reinforcement layer formed by winding a steel belt and provides a plurality of wear-resistant strips formed in one piece. Since the steel belt and the wear-resistant strips have good wear resistance and high strength, the overall strength and wear resistance of the hydraulic rubber hose are improved, thereby improving the strength of the hydraulic rubber hose and extending the service life of the hydraulic rubber hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0025] Figure 1 This is a schematic diagram of the overall structure of the anti-bending hydraulic rubber hose of the utility model.

[0026] Figure 2 This is a schematic cross-sectional view of the overall structure of the anti-bending hydraulic rubber hose of the present invention.

[0027] Figure 3 The utility model is a bending-resistant hydraulic rubber hose Figure 2 Enlarged structural diagram at point A in the middle.

[0028] Description of reference numerals:

[0029] In the figure: 1. inner base pipe; 101. inner coating; 201. inner buffer layer; 2011. inner buffer cavity; 202. reinforcement layer; 203. outer buffer layer; 2031. outer buffer cavity; 3. reinforcement layer; 4. outer layer pipe; 401. wear-resistant strip. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or an option in which both A and B are satisfied.

[0033] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0034] Reference Figure 1-3 , provides an anti-bending hydraulic rubber tube, the anti-bending hydraulic rubber tube includes an inner base tube 1 set by a rubber material;

[0035] A buffer structure is provided on the outer surface of the inner base tube 1;

[0036] A reinforcement layer 3 is provided on the outer surface of the buffer structure;

[0037] The outer layer tube 4 is made of rubber material and is provided on the outer surface of the reinforcement layer 3 .

[0038] Reference Figure 2 and Figure 3 An inner coating 101 is sprayed on the inner cavity wall of the inner base tube 1. The inner coating 101 is used to reduce the friction coefficient of the inner cavity of the inner base tube 1 to reduce dirt residue.

[0039] The inner coating 101 is one of a polytetrafluoroethylene coating, a polyvinylidene fluoride coating, a polyimide coating, a polyurethane coating, and a polyetherketone coating. In use, the inner coating 101 is sprayed on the inner wall of the inner base tube 1. The coating is resistant to acids, alkalis, and various organic solvents, which can effectively increase the corrosion resistance of the inner base tube 1. The friction coefficient of the coating is extremely low, thereby extending the service life of the inner base tube 1. At the same time, it can make the inner wall of the inner base tube 1 smoother and reduce residual dirt.

[0040] There are many types of this coating, and different types can be sprayed according to specific application scenarios. It has a wide range of applications and is easy to use.

[0041] Reference Figure 2 and Figure 3 The buffer structure includes an inner buffer layer 201, which is arranged on the outer surface of the inner base pipe 1. The outer surface of the inner buffer layer 201 is provided with a reinforcement layer 202, the outer surface of the reinforcement layer 202 is provided with an outer buffer layer 203, and the reinforcement layer 3 is provided on the outer surface of the outer buffer layer 203.

[0042] A plurality of inner buffer cavities 2011 are defined inside the inner buffer layer 201 , and the inner buffer cavities 2011 are arranged in a circular array.

[0043] The reinforcement layer 202 is formed by interweaving, braiding or winding a plurality of nylon fibers and a plurality of aramid fibers. Nylon is a polymer made of polyamide monomers, and aramid fiber is a high-performance polymer material with good strength, stiffness and durability.

[0044] A plurality of outer buffer cavities 2031 are provided inside the outer buffer layer 203, and the plurality of outer buffer cavities 2031 are arranged in a circular array. In application, the inner buffer layer 201, the reinforcement layer 202 and the reinforcement layer 202 are sequentially arranged on the outer surface of the inner base pipe 1, and the reinforcement layer 202 is formed by interweaving, braiding or winding a plurality of nylon and a plurality of aramid fibers. When the water pressure of the liquid is too high, shock waves or pressure pulsations will be generated in the inner base pipe 1. At this time, the inner buffer cavity 2011 and the outer buffer cavity 2031 can reduce the pressure by absorbing these pulsations. At the same time, the reinforcement layer 202 prevents the inner base pipe 1 from leaking the conveyed liquid due to excessive pressure, thereby improving the bending resistance of the hydraulic rubber hose, preventing leakage of the conveyed liquid due to excessive pressure, and thus extending the service life of the hydraulic rubber hose.

[0045] Reference Figure 2 and Figure 3 The reinforcement layer 3 is formed by winding a steel strip.

[0046] A plurality of wear-resistant strips 401 are integrally formed on the outer surface of the outer layer tube 4, and the plurality of wear-resistant strips 401 are arranged in a circular array. In application, by providing a reinforcement layer 3 formed by winding a steel belt and providing a plurality of integrally formed wear-resistant strips 401, the steel belt and the wear-resistant strips 401 have good wear resistance and high strength performance, so as to improve the overall strength and wear resistance of the hydraulic rubber hose, thereby improving the strength of the hydraulic rubber hose and thus extending the service life of the hydraulic rubber hose.

[0047] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention. In addition, it should be understood that after reading the technical content of the present invention, those skilled in the art may make various changes, modifications and / or variations to the present invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims of this application.

Claims

1. A bending-resistant hydraulic rubber hose, characterized by: include: An inner base tube (1) made of rubber material; A buffer structure, the buffer structure being provided on the outer surface of the inner base tube (1); A reinforcement layer (3), the reinforcement layer (3) being arranged on the outer surface of the buffer structure; An outer layer tube (4) is made of rubber material, and the outer layer tube (4) is arranged on the outer surface of the reinforcement layer (3).

2. The anti-bending hydraulic rubber hose according to claim 1, characterized in that: An inner coating (101) is sprayed on the inner cavity wall of the inner base tube (1), and the inner coating (101) is used to reduce the friction coefficient of the inner cavity of the inner base tube (1) to reduce residual dirt.

3. The anti-bending hydraulic rubber hose according to claim 2, characterized in that: The inner coating (101) is one of a polytetrafluoroethylene coating, a polyvinylidene fluoride coating, a polyimide coating, a polyurethane coating, and a polyetherketone coating.

4. The anti-bending hydraulic rubber hose according to claim 3, characterized in that: The buffer structure comprises an inner buffer layer (201), the inner buffer layer (201) being arranged on the outer surface of the inner base pipe (1), the outer surface of the inner buffer layer (201) being provided with a reinforcement layer (202), the outer surface of the reinforcement layer (202) being provided with an outer buffer layer (203), and the reinforcement layer (3) being provided on the outer surface of the outer buffer layer (203).

5. The anti-bending hydraulic rubber hose according to claim 4, characterized in that: A plurality of inner buffer cavities (2011) are provided inside the inner buffer layer (201), and the plurality of inner buffer cavities (2011) are arranged in a circular array.

6. The anti-bending hydraulic rubber hose according to claim 4, characterized in that: The reinforcement layer (202) is formed by interweaving, braiding or winding a plurality of nylon fibers and a plurality of aramid fibers.

7. The anti-bending hydraulic rubber hose according to claim 4, characterized in that: A plurality of outer buffer cavities (2031) are provided inside the outer buffer layer (203), and the plurality of outer buffer cavities (2031) are arranged in a circular array.

8. The anti-bending hydraulic rubber hose according to claim 1, characterized in that: The reinforcement layer (3) is formed by winding a steel strip.

9. The anti-bending hydraulic rubber hose according to claim 1, characterized in that: A plurality of wear-resistant strips (401) are integrally formed on the outer surface of the outer layer tube (4), and the plurality of wear-resistant strips (401) are arranged in a circumferential array.

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