A corrosion-resistant and easy-to-clean inner flat outer wave hose

Abstract

This utility model relates to the technical field of internal flat and external wave flexible hoses, and discloses a corrosion-resistant and easy-to-clean internal flat and external wave flexible hose, including a tube body. The tube body has external threads on its exterior, and the inner wall of the tube body has a plurality of guide grooves arranged in a circumferential array. The guide grooves are all U-shaped, and a guide ridge is provided between two adjacent guide grooves. The guide ridge is inclined downwards from the inlet to the outlet of the tube body. Residual media naturally flows into the interior of the guide grooves due to gravity or cleaning pressure, and gathers at both ends or the outlet end in the axial direction, avoiding disorderly diffusion and retention on the smooth inner wall, significantly reducing the residual liquid retention rate. The guide ridge can break the "absolute flatness" of the inner wall, and guide the residual liquid to converge to the adjacent guide grooves through a slight slope, reducing the adhesion area of ​​the residual liquid on the wall surface, thereby allowing the fluid to be discharged quickly along a preset path, reducing dead corners, and thus improving the ease of cleaning of the internal flat and external wave flexible hose.

Description

Technical Field

[0001] This utility model relates to the field of inner flat outer wave hose technology, specifically a corrosion-resistant and easy-to-clean inner flat outer wave hose. Background Technology

[0002] In many fields such as industrial production, municipal construction, agricultural irrigation, and daily life, hoses are important components for transporting fluids (such as liquids and gases), and their performance directly affects the stability, safety, and service life of the transport system.

[0003] Traditional hoses are prone to accumulating dirt, impurities, or microbial growth on their inner walls, especially when conveying fluids with extremely high hygiene requirements, such as food and medicine. Incomplete cleaning can seriously affect product quality and even cause hygiene and safety issues. Therefore, a corrosion-resistant and easy-to-clean inner flat outer wave hose has been proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a corrosion-resistant and easy-to-clean inner flat outer wave flexible hose to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant and easy-to-clean inner flat outer wave flexible hose, comprising a tube body, an external thread on the outside of the tube body, and a plurality of guide grooves arranged in a circumferential array on the inner wall of the tube body, all of the guide grooves being U-shaped, and a guide ridge being provided between two adjacent guide grooves, the guide ridge being inclined downward along the inlet to the outlet of the tube body.

[0006] Furthermore, both ends of the tube are connected to transition sections, which are tapered tubes, and the other end of the transition section is connected to an interface section.

[0007] Furthermore, the transition section has two U-shaped guide grooves inside.

[0008] Furthermore, the width of the guide channel is 1.5-2 times the depth of the guide channel.

[0009] Furthermore, the tilt angle of the guide rib is 3°-5°.

[0010] Furthermore, the inclination angle of the transition section is 5°-10°.

[0011] Furthermore, the inner wall of the guide channel and the outer wall of the guide ridge are both smoothed, and a non-guided area is formed between the guide channel and the guide ridge, where a slight texture is provided.

[0012] Furthermore, the guide rib is made of elastic material.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This corrosion-resistant and easy-to-clean inner flat outer wave hose allows residual media to flow naturally into the interior of the guide channel due to gravity or cleaning pressure, converging axially towards both ends or the outlet end. This prevents disordered diffusion and stagnation on the smooth inner wall, significantly reducing the residual liquid retention rate. The guide ridges break the "absolute straightness" of the inner wall, guiding the residual liquid to converge towards the adjacent guide channel through a slight slope, reducing the adhesion area of ​​the residual liquid on the wall surface. This allows the fluid to be discharged quickly along a preset path, reducing dead corners and improving the ease of cleaning of the inner flat outer wave hose. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the axial cross-sectional structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the transverse cross-sectional structure of this utility model.

[0018] In the diagram: 1. Pipe body; 2. Flow guide groove; 3. Flow guide ridge; 4. Transition section; 5. Guide groove; 6. External thread. Detailed Implementation

[0019] 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.

[0020] Please refer to the following: Figures 1-3 This utility model provides a technical solution: a corrosion-resistant and easy-to-clean inner flat outer wave hose, including a tube body 1, with an external thread 6 on the outside of the tube body 1, and a plurality of guide grooves 2 arranged in a circumferential array on the inner wall of the tube body 1. The plurality of guide grooves 2 are all U-shaped, and a guide ridge 3 is provided between two adjacent guide grooves 2. The guide ridge 3 is inclined downward along the inlet to the outlet of the tube body 1. Specifically, the medium is transported through the tube body 1. After the medium is transported, the residual liquid will naturally flow into the guide grooves 2 due to gravity or cleaning pressure, and gather at both ends or the outlet end in the axial direction, avoiding disorderly diffusion and retention on the smooth inner wall, significantly reducing the residual liquid retention rate. The guide ridge 3 can break the "absolute straightness" of the inner wall, reduce the adhesion area of ​​residual liquid on the wall surface, reduce the number of cleaning times and time, and thus allow the fluid (including medium residue, cleaning water, etc.) to be discharged quickly along the preset path, reducing dead corners of retention, thereby improving the easy-to-clean properties of the inner flat outer wave hose.

[0021] The tube body 1 uses high-purity perfluoroalkoxy resin PFA or fluorinated ethylene propylene copolymer FEP as the main material, significantly improving its resistance to strong acids, strong alkalis, organic solvents, and high-temperature steam, with a tolerance range of -200°C to +260°C. Through molecular structure optimization and nanofiller reinforcement, such as the addition of graphene and ceramic particles, the material's hardness, fatigue resistance, and wear resistance are further improved, extending its service life. For example, the optimized PFA corrugated pipe can withstand over 100,000 bending cycles without breaking, and its smooth inner wall reduces fluid residue contamination, meeting the requirements of high-cleanliness environments such as semiconductors and pharmaceuticals.

[0022] The width of the guide channel 2 is 1.5-2 times the depth of the guide channel 2. Specifically, the width of the guide channel 2 and the guide channel 5 is 1.5-2 times the depth, to ensure that the fluid can easily enter the guide channel 2.

[0023] The guide rib 3 has an inclination angle of 3°-5°. Specifically, the residual liquid is guided to converge into the adjacent guide trough 2 by a slight slope.

[0024] Furthermore, both ends of the pipe body 1 are connected to transition sections 4, which are tapered pipes. The other end of the transition section 4 is connected to an interface section. The inclination angle of the transition section 4 is 5°-10°. Two U-shaped guide grooves 5 are opened inside the transition section 4. Specifically, the tapered structure uses the slope to "push" the residual liquid towards the pipe opening, and works with the guide groove 2 to reach the outlet directly, solving the cleaning dead corner at the interface.

[0025] Furthermore, the inner wall of the guide channel 2 and the outer wall of the guide ridge 3 are both smoothed, forming a non-guided area between the guide channel 2 and the guide ridge 3. Slight texture is set in the non-guided area. Specifically, the inner wall of the guide channel 2 and the outer wall of the guide ridge 3 are both smoothed to reduce fluid flow resistance. Slight texture is set in the non-guided area to guide the residual liquid to gather in the channel through the difference in surface tension, which is similar to the "lotus effect" of directional hydrophobicity.

[0026] Furthermore, the guide rib 3 is made of elastic material. Specifically, by setting elastic material, the guide rib 2 of the guide groove is prevented from being squeezed and deformed when bent, ensuring that the guide path can still be kept unobstructed when the hose body 1 is deformed.

[0027] Working principle: When in use, this utility model transports the medium through the pipe body 1. After the medium is transported, the residual liquid will naturally flow into the guide channel 2 due to gravity or cleaning pressure, and gather towards both ends or the outlet end in the axial direction, avoiding disorderly diffusion and retention on the smooth inner wall, significantly reducing the residual liquid retention rate. The guide ridge 3 can break the "absolute flatness" of the inner wall, and guide the residual liquid to converge towards the adjacent guide channel 2 through a slight slope (similar to "terracing"), reducing the adhesion area of ​​the residual liquid on the wall surface, reducing the number of cleaning times and time. It is especially suitable for fields with high hygiene requirements or scenarios where the medium is easy to leave residue. It allows the fluid (including medium residue, cleaning water, etc.) to be discharged quickly along a preset path, reducing dead corners and thus improving the ease of cleaning of the inner flat and outer wave hose.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion resistant, easy-to-clean, inside-plain, outside-wavy hose comprising a tube (1), characterized in that: The outer side of the tube body (1) is provided with an external thread (6), and the inner wall of the tube body (1) is provided with a number of guide grooves (2) in a circumferential array. The number of guide grooves (2) are all U-shaped. A guide rib (3) is provided between two adjacent guide grooves (2). The guide rib (3) is inclined downward along the inlet to the outlet of the tube body (1).

2. A corrosion resistant, easy-to-clean, inside-plain, outside-corrugated hose according to claim 1, characterized in that: Both ends of the tube (1) are connected to transition sections (4), which are tapered tubes, and the other end of the transition section (4) is connected to an interface section.

3. A corrosion resistant, easy-to-clean, inside-plain, outside-corrugated hose according to claim 2, characterized in that: The transition section (4) has two U-shaped guide grooves (5) inside.

4. The corrosion-resistant and easy-to-clean inner flat outer wave flexible hose according to claim 1, characterized in that: The width of the guide groove (2) is 1.5-2 times the depth of the guide groove (2).

5. A corrosion resistant, easy-to-clean, inside-plain, outside-corrugated hose according to claim 1, characterized in that: The tilt angle of the guide rib (3) is 3°-5°.

6. A corrosion resistant, easy-to-clean, inside-plain, outside-wavy hose according to claim 2, characterized in that: The inclination angle of the transition section (4) is 5°-10°.

7. A corrosion resistant, easy-to-clean, inside-plain, outside-corrugated hose according to claim 1, characterized in that: The inner wall of the guide groove (2) and the outer wall of the guide ridge (3) are both smoothed. A non-guided area is formed between the guide groove (2) and the guide ridge (3), and a slight texture is provided in the non-guided area.

8. A corrosion resistant, easy-to-clean, inside-plain, outside-corrugated hose according to claim 1, characterized in that: The guide rib (3) is made of elastic material.

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