A fatigue-resistant and fracture-resistant hydraulic hose
By introducing a combination structure of tee fittings, corrugated hoses, reinforcing rings, and fracture-resistant support sleeves into hydraulic hoses, the problems of easy fatigue fracture and poor sealing of traditional hydraulic hoses are solved, achieving higher fatigue resistance and sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI BOGTOD IND TECHNOLOGY CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional hydraulic hoses are prone to fatigue damage and breakage during long-term use, and their sealing performance is poor, which affects the stability and safety of the system.
It adopts a combination structure of tee fitting, corrugated hose, reinforcing ring and fracture-resistant support sleeve. Through the design of connectors and sealing gaskets, the connection strength, support structure and sealing performance are enhanced, and fatigue damage and leakage are reduced.
This improves the fatigue resistance of hydraulic hoses, reduces the risk of breakage, and ensures the stable operation and sealing of the hydraulic system.
Smart Images

Figure CN224283899U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hydraulic hose technology, and in particular to a fatigue-resistant and fracture-resistant hydraulic hose. Background Technology
[0002] In hydraulic systems, hydraulic hoses are key components for transmitting hydraulic oil, and their performance directly affects the system's stability and safety. Traditional hydraulic hoses have several shortcomings in long-term use: the connection points of ordinary hoses have low strength, and under high-pressure transmission of hydraulic oil, pressure fluctuations can easily cause deformation or even breakage at the connection points, affecting the normal operation of the system; some hoses use rigid connection structures, which cannot adapt to slight angle adjustments in the pipeline, and long-term use can easily generate fatigue stress, leading to fatigue cracks in the pipeline and reducing its service life.
[0003] Meanwhile, traditional hoses have poor fatigue resistance. When the system vibrates or is frequently bent or stretched, the hose body and the connection are prone to breakage due to fatigue damage. In addition, the sealing performance is poor, and hydraulic oil leakage is prone to occur at the connection, resulting in resource waste and system failure. In particular, the sealing and strength problems are more prominent in multi-channel hydraulic systems when the flow is split and transmitted.
[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content
[0005] To address the problems of poor fatigue resistance of traditional hoses, which make the hose body and connections prone to fatigue damage and breakage under system vibration or frequent bending and stretching, and poor sealing performance leading to hydraulic oil leakage at the connections, resulting in resource waste and system failure, this application provides a fatigue-resistant and fracture-resistant hydraulic hose.
[0006] The fatigue-resistant and fracture-resistant hydraulic hose provided in this application adopts the following technical solution:
[0007] A fatigue-resistant and fracture-resistant hydraulic hose includes a tee connector, a fixed head installed inside one end of the tee connector, a corrugated hose connected to one end of the fixed head, and flow dividers on both sides of the tee connector away from the fixed head. A reinforcing ring is fixedly provided outside the flow divider, and a fracture-resistant support sleeve is provided on the reinforcing ring for support.
[0008] Preferably, the end of the corrugated hose away from the fixed head is connected to a connecting pipe, and an installation pipe head is fixedly provided on the connecting pipe.
[0009] Preferably, the fracture-resistant support sleeve has a connection port inside, and the inner wall of the reinforcing ring has a connecting thread.
[0010] Preferably, a connecting block is symmetrically fixed to the outer wall of the top of the reinforcing ring, and a connecting member is rotatably connected inside the connecting block.
[0011] Preferably, the end of the connector away from the connecting block is fixed to the top wall of the fracture-resistant support sleeve, and the fracture-resistant support sleeve is provided with a sealing gasket inside.
[0012] In summary, this application includes the following beneficial technical effects:
[0013] This application achieves multi-path transmission of hydraulic oil through the connection of the oil pump via the installed pipe head, components such as the connecting pipe, corrugated hose, and the branch port of the tee joint, resulting in high efficiency and stability. Reinforcing rings and fracture-resistant support sleeves enhance connection strength and support, reducing the risk of breakage; the fit of the connectors and connecting blocks, along with the flexibility of the corrugated hose, reduces fatigue damage and improves fatigue resistance. Sealing gaskets ensure a tight seal, prevent leakage, and guarantee the normal operation of the hydraulic system. Attached Figure Description
[0014] Figure 1 This is a front view of a fatigue-resistant and fracture-resistant hydraulic hose according to an embodiment of the application.
[0015] Figure 2 This is a schematic diagram of the structure of a fatigue-resistant and fracture-resistant hydraulic hose according to an embodiment of the application.
[0016] Figure 3 This is a schematic diagram of the anti-fracture support sleeve in the embodiment of the application.
[0017] Explanation of reference numerals in the attached drawings: 1. Tee connector; 2. Fixing head; 3. Corrugated hose; 4. Connecting pipe; 5. Installation pipe head; 6. Diverter port; 7. Reinforcing ring; 8. Fracture-resistant support sleeve; 9. Connection port; 10. Connecting thread; 11. Connecting piece; 12. Connecting block; 13. Sealing gasket. Detailed Implementation
[0018] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0019] This application discloses a fatigue-resistant and fracture-resistant hydraulic hose. (Refer to...) Figure 1 The system includes a three-way connector 1, with a fixed head 2 installed inside one end. A corrugated hose 3 is connected to one end of the fixed head 2, and a connecting pipe 4 is connected to the end of the corrugated hose 3 away from the fixed head 2. An installation pipe head 5 is fixedly installed on the connecting pipe 4. Two branch ports 6 are provided on both sides of the three-way connector 1 away from the fixed head 2. The system connects to an oil pump via the installation pipe heads 5. Hydraulic oil enters the three-way connector 1 through the connecting pipe 4, corrugated hose 3, and fixed head 2, and then is distributed and transmitted through the branch ports 6 on both sides. This meets the needs of multi-channel hydraulic systems and ensures efficient and stable hydraulic oil transmission.
[0020] like Figures 2-3 As shown, a reinforcing ring 7 is fixedly installed outside the diversion port 6. A fracture-resistant support sleeve 8 is provided on the reinforcing ring 7 for support. A connection port 9 is opened inside the fracture-resistant support sleeve 8, and a connecting thread 10 is provided on the inner wall of the reinforcing ring 7. The reinforcing ring 7 enhances the connection strength between the diversion port 6 and the external pipeline through the connecting thread 10. The fracture-resistant support sleeve 8 forms structural support for the diversion port 6 and the connection point, effectively reducing pipeline deformation caused by pressure fluctuations during hydraulic oil transmission, significantly reducing the risk of breakage, and improving the overall fracture resistance of the pipeline.
[0021] In this application, connecting blocks 12 are symmetrically fixed to the outer wall of the top of the reinforcing ring 7. A connecting member 11 is rotatably connected inside the connecting block 12. The end of the connecting member 11 away from the connecting block 12 is fixed to the top wall of the fracture-resistant support sleeve 8. A sealing gasket 13 is provided inside the fracture-resistant support sleeve 8. The rotatable engagement between the connecting member 11 and the connecting block 12 allows the fracture-resistant support sleeve 8 to adapt to slight angle adjustments in the pipeline, avoiding fatigue stress caused by rigid connections. The flexible structure of the corrugated hose 3 itself can absorb the vibration and displacement of the hydraulic system, reduce fatigue damage caused by frequent bending and stretching of the pipeline, and significantly enhance the fatigue resistance of the hydraulic hose.
[0022] The implementation principle of the fatigue-resistant and fracture-resistant hydraulic hose in this application embodiment is as follows:
[0023] The oil pump is pre-connected via the installation pipe head 5. Hydraulic oil flows into the fixed head 2 through the connecting pipe 4 and the corrugated hose 3. It is then diverted and transported to the target equipment via the diversion ports 6 on both sides of the tee connector 1, meeting the requirements of the multi-channel hydraulic system. During transmission, the reinforcing ring 7 strengthens the connection between the diversion port 6 and the external pipeline through the connecting thread 10. The fracture-resistant support sleeve 8 provides structural support for the diversion port 6 and the connection, reducing pipeline deformation caused by pressure fluctuations during hydraulic oil transmission and lowering the risk of breakage. The rotational engagement of the connecting piece 11 and the connecting block 12 allows the fracture-resistant support sleeve 8 to adapt to slight angular adjustments in the pipeline, avoiding fatigue stress caused by rigid connections.
[0024] The sealing gasket 13 ensures the sealing of the connection between the fracture-resistant support sleeve 8 and the external pipeline, preventing hydraulic oil leakage; the flexible structure of the corrugated hose 3 can absorb the vibration and displacement of the hydraulic system, reduce fatigue damage caused by frequent bending and stretching of the pipeline, and improve the overall fatigue resistance and fracture resistance of the hydraulic hose.
[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A fatigue-resistant and fracture-resistant hydraulic hose, comprising a tee connector (1), characterized in that: The three-way connector (1) has a fixed head (2) installed inside one end, and a corrugated hose (3) is connected to one end of the fixed head (2). The three-way connector (1) has a diversion port (6) on both sides away from the fixed head (2). A reinforcing ring (7) is fixed outside the diversion port (6), and a fracture-resistant support sleeve (8) is provided on the reinforcing ring (7) for support.
2. The fatigue-resistant and fracture-resistant hydraulic hose according to claim 1, characterized in that: The corrugated hose (3) is connected to a connecting pipe (4) at the end away from the fixing head (2), and an installation pipe head (5) is fixedly provided on the connecting pipe (4).
3. The fatigue-resistant and fracture-resistant hydraulic hose according to claim 1, characterized in that: The fracture-resistant support sleeve (8) has a connection port (9) inside, and the inner wall of the reinforcing ring (7) has a connecting thread (10).
4. The fatigue-resistant and fracture-resistant hydraulic hose according to claim 1, characterized in that: The outer wall of the top end of the reinforcing ring (7) is symmetrically fixed with a connecting block (12), and the connecting block (12) is rotatably connected with a connector (11).
5. The fatigue-resistant and fracture-resistant hydraulic hose according to claim 4, characterized in that: The end of the connector (11) away from the connector (12) is fixed to the top wall of the anti-fracture support sleeve (8), and the anti-fracture support sleeve (8) is provided with a sealing gasket (13).