Bending-resistant structure of hydraulic rubber tube

Abstract

The utility model belongs to hydraulic rubber pipe technical field discloses a kind of bending-resistant structure of hydraulic rubber pipe, including hydraulic rubber pipe, further including protection component;Protection component includes: flexible spiral skeleton, flexible spiral skeleton spirally winds in the outside of hydraulic rubber pipe;Multiple limit rings, multiple limit rings are spaced and set in the outside of flexible spiral skeleton;Linkage mechanism, linkage mechanism is connected between two limit rings, linkage mechanism is one or more flexible bands, and the both ends of flexible band are respectively fixed on the limit ring of protection component both ends. The utility model is through the triple design of flexible spiral skeleton, limit ring and linkage mechanism, forms dynamic bending-resistant mechanism, wherein flexible spiral skeleton disperses radial stress, limit ring forcibly limits minimum bending radius, linkage mechanism coordinates body deformation, avoids local stress overrun, can significantly reduce rubber pipe crack, enhance layer fracture risk, to prolong its service life, improve bending-resistant performance simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic rubber hose technology, and in particular to a bending-resistant structure for hydraulic rubber hoses. Background Technology

[0002] Hydraulic rubber hoses are key components in hydraulic systems that transmit power and fluid. They are widely used in engineering machinery, industrial equipment, and automation. In practical applications, hydraulic rubber hoses often need to be bent at the connection points to accommodate the movement of the equipment. However, repeated or excessive bending can lead to localized stress concentration in the rubber hose, accelerating the cracking of the outer rubber layer and the fatigue fracture of the reinforcing layer. Ultimately, this can result in bulging, rupture, and hydraulic oil leakage of the hose, which not only affects the normal operation of the system but also poses serious safety hazards.

[0003] Currently, traditional methods for improving the bending resistance of rubber hoses mainly focus on the material itself, such as using rubber with higher toughness and optimizing the structure of reinforcing layers (such as steel wire braided layers). However, although these methods have some effect, they are costly and the improvement is limited. Another common practice is to add a spring sleeve to the outside of the rubber hose, but its main function is to prevent friction and compression, and it is not effective in controlling the bending radius and preventing excessive bending. Therefore, we propose a bending-resistant structure for hydraulic rubber hoses. Summary of the Invention

[0004] To address the technical problems existing in traditional methods for improving the bending resistance of rubber hoses as described in the background, this utility model provides the following technical solution: A bending-resistant structure for a hydraulic rubber hose includes a hydraulic rubber hose and a protective component sleeved on the outside of the hydraulic rubber hose. The protective component includes: a flexible spiral skeleton, which is spirally wound around the outside of the hydraulic rubber hose; Multiple limiting rings are spaced apart and sleeved on the outside of the flexible helical skeleton; A linkage mechanism is provided, which is connected between two adjacent limiting rings.

[0005] As a technical solution for the bending-resistant structure of the hydraulic rubber hose described in this utility model, the linkage mechanism is one or more flexible strips, the two ends of the flexible strips are respectively fixed to the limiting rings at both ends of the protection component, and the middle part passes through or is connected to each of the middle limiting rings.

[0006] As a technical solution for the bending-resistant structure of the hydraulic rubber hose described in this utility model, the linkage mechanism is a flexible woven mesh sleeve, which tightly wraps around the outer periphery of all the limiting rings.

[0007] As a technical solution for the bending-resistant structure of the hydraulic rubber hose of this utility model, the inner wall of the limiting ring is provided with a groove that matches the spiral protrusion of the flexible spiral skeleton, and the limiting ring is fixed to the flexible spiral skeleton by the groove.

[0008] As a technical solution for the bending-resistant structure of the hydraulic rubber hose described in this utility model, the flexible spiral skeleton is made of spring steel or engineering plastic.

[0009] As a technical solution for the bending-resistant structure of the hydraulic rubber hose described in this utility model, the limiting ring is made of metal or high-strength nylon.

[0010] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model forms a dynamic anti-bending mechanism through the triple design of a flexible spiral skeleton, a limiting ring, and a linkage mechanism. The flexible spiral skeleton disperses radial stress, the limiting ring forcibly limits the minimum bending radius, and the linkage mechanism coordinates the overall deformation to avoid local stress exceeding the limit. This can significantly reduce the risk of rubber tube cracking and reinforcement layer breakage, thereby extending its service life and improving its bending resistance.

[0011] 2. This utility model avoids altering the material or process of the rubber hose body by adding an external structure, thus reducing manufacturing costs. The modular design adapts to different pipe diameters and bending requirements, while the optional material design can balance lightweight and corrosion resistance to expand application scenarios. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of this utility model.

[0013] Figure 2 This is a schematic diagram of the limiting ring structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the main structure of Embodiment 2 of this utility model.

[0015] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0016] Explanation of reference numerals in the attached figures: In the diagram: 1. Hydraulic rubber hose; 2. Flexible spiral skeleton; 3. Limiting ring; 301. Groove; 4. Flexible belt; 5. Flexible woven mesh sleeve. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Reference Figures 1-4 A bending-resistant structure for a hydraulic rubber hose is provided. This bending-resistant structure for a hydraulic rubber hose includes a hydraulic rubber hose 1, wherein the inner layer of the hydraulic rubber hose 1 is oil-resistant rubber, the middle layer is a steel wire braided reinforcement layer, and the outer layer is wear-resistant rubber. It also includes a protective component sleeved on the outside of the hydraulic rubber hose 1. The protective components include: a flexible spiral skeleton 2, which is spirally wound around the outside of the hydraulic rubber tube 1. The spiral pitch of the flexible spiral skeleton 2 is 1.2-1.5 times that of the hydraulic rubber tube 1, ensuring a tight fit with the rubber tube after winding. The spiral winding design of the flexible spiral skeleton 2 provides uniform radial support force, disperses bending stress, and prevents local deformation or breakage of the hydraulic rubber tube 1. Multiple limiting rings 3 are spaced out on the outside of the flexible spiral skeleton 2. The limiting rings 3 are spaced out to constrain the bending radius and avoid stress concentration caused by excessive bending. The linkage mechanism connects two adjacent limit rings 3. The linkage mechanism coordinates the movement of the adjacent limit rings 3 to ensure that the overall structure deforms synchronously when bending, thereby reducing local fatigue.

[0019] Example 1, refer to Figure 1 and Figure 2 The linkage mechanism consists of one or more flexible belts 4 (such as polyester fiber braided belts, 10-20mm wide, with metal buckles at both ends). The two ends of the flexible belt 4 are respectively fixed to the limiting rings 3 at both ends of the protective component, and the middle part passes through or connects to each of the middle limiting rings 3. In application, the two ends of the flexible belt 4 are fixed to the outermost limiting ring 3 and pass through the middle limiting ring 3 to form a longitudinal tension network. When bending, the longitudinal stress can be dispersed through the stretching / contraction of the flexible belt 4 to suppress the twisting of the hydraulic rubber tube 1.

[0020] Example 2, refer to Figure 3 and Figure 4 The linkage mechanism is a flexible woven mesh sleeve 5 (such as stainless steel wire or aramid fiber weaving, with a mesh diameter of 2-5mm). The flexible woven mesh sleeve 5 tightly wraps around the outer periphery of all the limiting rings 3. In application, the flexible woven mesh sleeve 5 wraps around all the limiting rings 3 to form an integral protective sleeve, enhancing the structural integrity. The flexible nature of the flexible woven mesh sleeve 5 allows for bending deformation, while the stress is evenly transmitted through the mesh tension to avoid local tearing.

[0021] Reference Figures 1-4 The inner wall of the limiting ring 3 is provided with a groove 301 that matches the spiral protrusion of the flexible spiral skeleton 2. The limiting ring 3 is fixed to the flexible spiral skeleton 2 by the groove 301. The depth of the groove 301 is 1 / 2 of the diameter of the flexible spiral skeleton 2, and the width is slightly larger than the width of the spiral protrusion (about 0.1mm gap). In application, the groove 301 fits into the spiral protrusion of the flexible spiral skeleton 2 to prevent the limiting ring 3 from axial displacement or rotation, improve the stability of the component, and reduce wear caused by component misalignment.

[0022] Reference Figures 1-4 The flexible spiral skeleton 2 is made of spring steel or engineering plastic. In application, spring steel provides high elasticity and fatigue resistance, while engineering plastic takes into account lightweight and corrosion resistance to meet the needs of different working conditions.

[0023] Reference Figures 1-4 The limiting ring 3 is made of metal or high-strength nylon. In application, metal ensures mechanical strength, while nylon reduces weight and avoids friction with external parts to generate heat, thus extending service life.

[0024] The working principle of this utility model is as follows: The operation of installing the flexible spiral skeleton 2 is as follows: First, the flexible spiral skeleton 2 is wound clockwise along the outer wall of the hydraulic rubber tube 1 to ensure that the spiral gap is uniform (this can be assisted by an external rotating clamp). Then, the two ends of the flexible spiral skeleton 2 are fixed with epoxy resin to prevent loosening. Operation of fixing the limiting ring 3: First, put the limiting ring 3 on according to the preset spacing (usually 2-3 times the bending radius of the rubber tube), and then use the groove 301 to lock into the spiral protrusion of the flexible spiral skeleton 2. Then, use a tool (such as a hot air gun) to heat the nylon limiting ring 3 until it softens, and press it to fit tightly into the flexible spiral skeleton 2. Operation of the linkage mechanism: Fix both ends of the flexible belt 4 to the two outermost limiting rings 3, and let the middle section pass through the through holes of the remaining limiting rings 3 to form a longitudinal tensioning network (such as...). Figure 1 (as shown) Alternatively, the flexible woven mesh sleeve 5 can be wrapped around the limiting ring 3 from one end, tightening and fixing it ring by ring until it covers all limiting rings 3. It is important to ensure that the weaving density of the flexible woven mesh sleeve 5 is sufficient to evenly distribute stress during bending (e.g., ...). Figure 3 (As shown).

[0025] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A bending-resistant structure for a hydraulic rubber hose, comprising a hydraulic rubber hose (1), characterized in that: It also includes a protective component fitted over the outside of the hydraulic rubber hose (1); The protective component includes: a flexible spiral skeleton (2), which is spirally wound around the outside of the hydraulic rubber tube (1); Multiple limiting rings (3) are spaced apart and sleeved on the outside of the flexible spiral skeleton (2); The linkage mechanism is connected between two adjacent limiting rings (3).

2. The bending-resistant structure of the hydraulic rubber hose according to claim 1, characterized in that: The linkage mechanism is one or more flexible strips (4), the two ends of which are fixed to the limiting rings (3) at both ends of the protection component, and the middle part passes through or is connected to each of the middle limiting rings (3).

3. The bending-resistant structure of the hydraulic rubber hose according to claim 1, characterized in that: The linkage mechanism is a flexible woven mesh sleeve (5), which tightly wraps around the outer periphery of all the limiting rings (3).

4. The bending-resistant structure of the hydraulic rubber hose according to any one of claims 1-3, characterized in that: The inner wall of the limiting ring (3) is provided with a groove (301) that matches the spiral protrusion of the flexible spiral skeleton (2). The limiting ring (3) is fixed to the flexible spiral skeleton (2) by the groove (301).

5. The bending-resistant structure of the hydraulic rubber hose according to any one of claims 1-3, characterized in that: The flexible spiral skeleton (2) is made of spring steel or engineering plastic.

6. The bending-resistant structure of the hydraulic rubber hose according to any one of claims 1-3, characterized in that: The limiting ring (3) is made of metal or high-strength nylon.

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