Corrugated hose special for liquid cooling

By introducing a connection mechanism consisting of a tapered connector, spring lock, and shrink ring into the liquid cooling hose, combined with U-shaped and Ω-shaped corrugated structures, the problems of easy leakage and poor pressure resistance at the connection points of traditional liquid cooling hoses are solved, achieving quick assembly and disassembly and high sealing performance, making it suitable for a variety of application scenarios.

CN224174744UActive Publication Date: 2026-04-28ZHEJIANG CAISI PIPELINE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG CAISI PIPELINE TECH CO LTD
Filing Date
2025-05-28
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

During use, the compatibility of the joints at the connection points of traditional liquid-cooled hoses gradually deteriorates, leading to aging of the sealing material and affecting the transmission quality.

Method used

A special corrugated hose for liquid cooling was designed, which adopts a connection mechanism of conical joint, spring lock and shrink ring, combined with U-shaped and Ω-shaped corrugated structure to achieve metal-rubber double sealing, and improves sealing stability and quick disassembly and assembly through the cooperation of rotary valve and movable rod.

Benefits of technology

It enables quick assembly and disassembly, improves sealing stability and pressure resistance, avoids leakage during transmission, is suitable for various application scenarios, and achieves an IP67 protection rating.

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Abstract

The utility model relates to the technical field of liquid cooling transmission, and discloses a corrugated hose special for liquid cooling. Comprising a first corrugated pipe and a second corrugated pipe, the top end of the first corrugated pipe is connected with the surface of the second corrugated pipe in a clamped mode, a connecting mechanism is arranged at the contact end of the first corrugated pipe and the second corrugated pipe, and the connecting mechanism comprises a connecting block fixedly connected to the surface of the first corrugated pipe. A clamping and pressing structure is designed on the inner conical surface of the first corrugated pipe, a conical surface connector is designed to have the taper of 5 degrees and is matched with a butt joint rod, radial shrinkage is generated during pressing, and metal-rubber dual sealing is achieved in cooperation with a shrinkage clamping ring. When the poke rod is pressed, the spring lock catch below the conical surface connector is connected with a clamping hole formed in the second corrugated pipe in a clamping mode, and rapid clamping is achieved. And when disassembly is needed, clamping between the spring lock catch and the clamping hole can be canceled only by pressing the poke rod again, so that quick disassembly is achieved, and meanwhile, the spring lock catch supports the IP protection level and can be suitable for more use scenes.
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Description

Technical Field

[0001] This utility model relates to the field of liquid cooling transfer technology, specifically a corrugated hose for liquid cooling. Background Technology

[0002] Corrugated hoses, as flexible pressure-resistant pipe fittings, are installed in liquid transportation systems to compensate for the relative displacement of pipe or machine / equipment connection ends, absorb vibration energy, and play a role in vibration reduction and noise reduction. They possess numerous advantages, including high flexibility, light weight, corrosion resistance, fatigue resistance, and resistance to high and low temperatures. They can also be used for cable routing. Corrugated hoses are flexible pipes with a corrugated surface structure; their unique corrugated design gives them extensibility, flexibility, and pressure resistance, making them widely used in fluid transportation, mechanical connections, and vibration damping systems.

[0003] Currently, corrugated hoses are mostly used for liquid cooling transmission. Traditional liquid cooling hoses are prone to leakage and have poor pressure resistance. As the service time increases, the compatibility of the joints will gradually deteriorate, which will eventually lead to the aging of the sealing material and affect the quality of transmission. Therefore, we have proposed a special corrugated hose for liquid cooling. Utility Model Content

[0004] The main purpose of this invention is to overcome the problem that, with the increase of the service time, the matching of the joints of traditional corrugated hoses will gradually deteriorate, which will eventually lead to the aging of the sealing material and ultimately affect the quality of transmission.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a special corrugated hose for liquid cooling, comprising a first corrugated tube and a second corrugated tube, wherein the top end of the first corrugated tube is snapped onto the surface of the second corrugated tube, and a connecting mechanism is provided at the contact end of the first corrugated tube and the second corrugated tube, the connecting mechanism comprising a connecting block fixedly connected to the surface of the first corrugated tube, a support block fixedly connected to the upper end of the connecting block, a lever provided at the end of the support block away from the connecting block, a connecting rod fixedly connected to the lower end of the lever, the connecting rod penetrating the support block, and a tapered connector fixedly connected to the end of the connecting rod away from the lever.

[0006] As a further preferred embodiment of this technical solution, a spring lock is fixedly connected to the end of the conical joint away from the connecting rod. Two spring locks are provided, symmetrically arranged about the center of the conical joint. A positioning rod is fixedly connected to the upper end of the support block. The end of the positioning rod away from the support block engages with the actuating rod.

[0007] As a further preferred embodiment of this technical solution, a sealing mechanism is provided above the connecting block. The sealing mechanism includes a rotary valve rotatably connected to the upper end of the connecting block. A movable rod is fixedly connected to the lower end of the rotary valve. The movable rod passes through the connecting block. A shrink-fit ring is fixedly connected to the end of the movable rod away from the rotary valve. The shrink-fit ring is sleeved on the surface of the first bellows.

[0008] As a further preferred embodiment of this technical solution, both the second corrugated pipe and the first corrugated pipe have U-shaped corrugations on their surfaces, both the second corrugated pipe and the first corrugated pipe have Ω-shaped corrugations on their inner walls, and both the surface and inner walls of the second corrugated pipe and the first corrugated pipe are provided with stainless steel wire spiral skeletons.

[0009] As a further preferred embodiment of this technical solution, a threaded ring is fixedly connected to the surface of the second bellows, and a threaded ring is provided on the inner wall of the first bellows, with the threaded ring and the threaded ring being threadedly connected.

[0010] As a further preferred embodiment of this technical solution, the number of rotary valves is set to two, and the two rotary valves are symmetrically arranged about the center of the connecting block. The rotary valves are located in front of the support block, and the shrink ring is located directly above the threaded ring.

[0011] As a further preferred embodiment of this technical solution, the surface of the second corrugated pipe is provided with a locking hole, which is engaged with the lower end of the connecting rod. The number of the conical joints is also set to two, and the two conical joints are symmetrically arranged about the center of the connecting block.

[0012] This utility model provides a corrugated hose specifically for liquid cooling, which has the following beneficial effects:

[0013] (1) This utility model features a snap-fit ​​structure designed on the internal conical surface of the first bellows: the conical joint is designed with a 5° taper, which, when pressed, generates radial contraction, achieving a metal-rubber double seal with the shrinkage retaining ring. When the lever is pressed, the spring lock below the conical joint engages with the retaining hole on the second bellows, achieving quick engagement. When disassembly is required, simply press the lever again to release the spring lock from the retaining hole, thus achieving quick disassembly. Furthermore, the spring lock supports IP67 protection, making it suitable for a wider range of applications.

[0014] (2) This utility model provides a connecting mechanism at the connection between the first corrugated pipe and the second corrugated pipe. By rotating the rotary valve above the connecting mechanism, the rotary valve will drive the movable rod below to rotate together, thereby adjusting the shrink ring set away from the rotary valve. Since the shrink ring is sleeved on the surface of the first corrugated pipe, the shrink ring can only shrink to the same diameter as the interface of the first corrugated pipe under the action of the rotary valve, thus improving the sealing stability between the corrugated hoses. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the second corrugated pipe structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the first corrugated pipe structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the connection mechanism of this utility model.

[0019] Figure 5 This is a cross-sectional view of the first corrugated pipe of this utility model.

[0020] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure of section A in the middle.

[0021] In the diagram: 1. First corrugated pipe; 11. Second corrugated pipe; 12. U-shaped corrugation; 13. Ω-shaped corrugation; 14. Snap-hole; 15. Threaded ring; 16. Stainless steel wire spiral skeleton; 2. Connecting mechanism; 21. Connecting block; 22. Actuating rod; 23. Positioning rod; 24. Connecting rod; 25. Support block; 26. Conical joint; 27. Spring lock; 3. Sealing mechanism; 31. Rotary valve; 32. Movable rod; 33. Shrink ring; 34. Threaded ring. Detailed Implementation

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0025] Example 1: Please refer to Figure 1 , 5 6

[0026] A liquid-cooled corrugated hose includes a first corrugated tube 1 and a second corrugated tube 11. The top end of the first corrugated tube 1 is snapped onto the surface of the second corrugated tube 11. A connecting mechanism 2 is provided at the contact end of the first corrugated tube 1 and the second corrugated tube 11. The connecting mechanism 2 includes a connecting block 21 fixedly connected to the surface of the first corrugated tube 1. A support block 25 is fixedly connected to the upper end of the connecting block 21. An actuating rod 22 is provided at the end of the support block 25 away from the connecting block 21. A connecting rod 24 is fixedly connected to the lower end of the actuating rod 22. The connecting rod 24 passes through the support block 25. A conical connector 26 is fixedly connected to the end of the connecting rod 24 away from the actuating rod 22.

[0027] Two spring locks 27 are fixedly connected to the end of the conical connector 26 furthest from the connecting rod 24. These two spring locks 27 are symmetrically arranged about the center of the conical connector 26. A positioning rod 23 is fixedly connected to the upper end of the support block 25. The end of the positioning rod 23 furthest from the support block 25 is engaged with the actuating rod 22. By using the actuating rod 22 and the positioning rod 23, when quick disassembly or assembly is required, the engagement between the positioning rod 23 and the actuating rod 22 can be removed, thus preventing leakage of the transported material at the connection point of the corrugated hose due to the movement of the transported material inside the pipe during operation.

[0028] Example 2: Please refer to Figure 2 , 4

[0029] A sealing mechanism 3 is provided above the connecting block 21. The sealing mechanism 3 includes a rotary valve 31 rotatably connected to the upper end of the connecting block 21. A movable rod 32 is fixedly connected to the lower end of the rotary valve 31. The movable rod 32 passes through the connecting block 21. A shrink ring 33 is fixedly connected to the end of the movable rod 32 away from the rotary valve 31. The shrink ring 33 is sleeved on the surface of the first bellows 1.

[0030] Both the second corrugated pipe 11 and the first corrugated pipe 1 have U-shaped corrugations 12 on their surfaces, and Ω-shaped corrugations 13 on their inner walls. A stainless steel wire spiral skeleton 16 is also provided on the inner walls of both the second corrugated pipe 11 and the first corrugated pipe 1. This corrugated hose adopts a double-layer alternating corrugation design: the outer layer uses large-peak U-shaped corrugations for effective pressure resistance and support; the inner layer uses small-peak Ω-shaped corrugations, which have a certain degree of flexibility, can disperse stress, and improve pressure resistance. The stainless steel wire spiral skeleton embedded between the corrugated layers prevents negative pressure from causing collapse, while allowing axial expansion and contraction to compensate for thermal expansion and contraction.

[0031] Example 3: Please refer to Figure 2 , 5

[0032] The second bellows 11 has a threaded ring 15 fixedly connected to its surface, and the inner wall of the first bellows 1 has a threaded ring 34. The threaded ring 15 and the threaded ring 34 are threadedly connected. By rotating the second bellows 11, the threaded ring 15 on its front side will come into contact with the threaded ring 34 on the surface of the first bellows 1, completing the first step of the docking and improving the stability of the seal between the bellows and hoses.

[0033] Example 4: Please refer to Figure 1 , 3

[0034] The number of rotary valves 31 is set to two, and the two rotary valves 31 are symmetrically arranged about the center of the connecting block 21. The rotary valves 31 are located in front of the support block 25, and the shrink ring 33 is located directly above the threaded ring 15.

[0035] The second bellows 11 has a locking hole 14 on its surface, which engages with the lower end of the connecting rod 24. Two conical connectors 26 are also provided, symmetrically positioned about the center of the connecting block 21. Rotating the valve 31 causes the lower movable rod 32 to rotate, adjusting the shrink-fit ring 33 located away from the valve. Since the shrink-fit ring 33 is fitted onto the surface of the first bellows 1, it can only shrink to the same diameter as the interface of the first bellows 1 under the action of the valve 31, completing the second step of connection limiting and further improving the sealing stability between the bellows hoses.

[0036] This utility model provides a corrugated hose specifically for liquid cooling, and its working principle is as follows:

[0037] During use, the second bellows 11 needs to be threadedly connected to the first bellows 1. Rotation of the second bellows 11 will cause the threaded ring 15 on its front side to contact the threaded ring 34 on the surface of the first bellows 1, completing the first step of the connection. A connecting mechanism 2 is provided at the connection between the first bellows 1 and the second bellows 11. By rotating the rotary valve 31 above the connecting mechanism 2, the rotary valve 31 will drive the movable rod 32 below to rotate as well, thereby adjusting the shrink-fit ring 33 located away from the rotary valve 31. Since the shrink-fit ring 33 is fitted onto the surface of the first bellows 1, under the action of the rotary valve 31, the shrink-fit ring 33 can only shrink to the same diameter as the interface of the first bellows 1, completing the second step of the connection limiting work. The first bellows 1 has an internal conical surface with a clamping structure: the conical joint 26 is designed with a 5° taper, which, in conjunction with the connecting rod 24, produces radial contraction when pressed, achieving a metal-rubber double seal with the shrink-fit ring 33. When the actuating lever 22 is pressed, the spring lock 27 below the conical connector 26 engages with the locking hole 14 on the second bellows 11, achieving quick engagement. For disassembly, simply press the actuating lever 22 again to release the spring lock 27 from the locking hole 14, achieving quick release. The spring lock 27 also supports IP67 protection. A positioning rod 23 is located above the support block 25. When quick disassembly is required, the engagement between the positioning rod 23 and the actuating lever 22 must be released, preventing leakage at the bellows connection due to the movement of the transported material inside the pipe during operation. This design effectively improves the problems of easy leakage and poor pressure resistance in traditional liquid-cooled hoses.

[0038] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural, procedural, or functional transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A liquid-cooled corrugated hose, comprising a first corrugated tube (1) and a second corrugated tube (11), wherein the top end of the first corrugated tube (1) is snapped onto the surface of the second corrugated tube (11), and a connecting mechanism (2) is provided at the contact end between the first corrugated tube (1) and the second corrugated tube (11), characterized in that, The connecting mechanism (2) includes a connecting block (21) fixedly connected to the surface of the first bellows (1). A support block (25) is fixedly connected to the upper end of the connecting block (21). A lever (22) is provided at the end of the support block (25) away from the connecting block (21). A docking rod (24) is fixedly connected to the lower end of the lever (22). The docking rod (24) passes through the support block (25). A tapered joint (26) is fixedly connected to the end of the docking rod (24) away from the lever (22).

2. The corrugated flexible hose for liquid cooling according to claim 1, characterized in that: The conical joint (26) is fixedly connected to a spring lock (27) at the end away from the docking rod (24). The number of spring locks (27) is set to two. The two spring locks (27) are symmetrically arranged about the center of the conical joint (26). The upper end of the support block (25) is fixedly connected to a positioning rod (23). The end of the positioning rod (23) away from the support block (25) is engaged with the actuating rod (22).

3. The corrugated flexible hose for liquid cooling according to claim 1, characterized in that: A sealing mechanism (3) is provided above the connecting block (21). The sealing mechanism (3) includes a rotary valve (31) rotatably connected to the upper end of the connecting block (21). A movable rod (32) is fixedly connected to the lower end of the rotary valve (31). The movable rod (32) passes through the connecting block (21). A shrink ring (33) is fixedly connected to the end of the movable rod (32) away from the rotary valve (31). The shrink ring (33) is sleeved on the surface of the first bellows (1).

4. The liquid-cooled corrugated hose according to claim 1, characterized in that: The second corrugated pipe (11) and the first corrugated pipe (1) are both provided with U-shaped corrugations (12), the inner walls of the second corrugated pipe (11) and the first corrugated pipe (1) are both provided with Ω-shaped corrugations (13), and the inner walls of the second corrugated pipe (11) and the first corrugated pipe (1) are provided with stainless steel wire spiral skeletons (16).

5. A corrugated flexible hose for liquid cooling according to claim 4, characterized in that: The surface of the second bellows (11) is fixedly connected with a threaded ring (15), and the inner wall of the first bellows (1) is provided with a threaded ring (34), and the threaded ring (15) and the threaded ring (34) are threadedly connected.

6. The liquid-cooled corrugated hose according to claim 3, characterized in that: The number of rotary valves (31) is set to two. The two rotary valves (31) are symmetrically arranged about the center of the connecting block (21). The rotary valves (31) are located in front of the support block (25). The shrink ring (33) is located directly above the threaded ring (15).

7. The corrugated flexible hose for liquid cooling according to claim 1, characterized in that: The second corrugated pipe (11) has a locking hole (14) on its surface. The locking hole (14) is engaged with the lower end of the connecting rod (24). The number of the conical joints (26) is also set to two. The two conical joints (26) are symmetrically arranged about the center of the connecting block (21).