A liquid-cooled pipe with a leak-proof structure

By introducing innovative designs of sealing and connecting components into liquid cooling pipelines, the expansion of the sealing ring and the sealing of the water-absorbing expansion strip are achieved through gas flow, which solves the leakage problem at the connection of liquid cooling pipelines and improves the sealing performance and connection stability.

CN224283853UActive Publication Date: 2026-05-26FOSHAN HONGRUI METAL PRODUCTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN HONGRUI METAL PRODUCTS CO LTD
Filing Date
2025-08-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The sealing rings at the connection of liquid cooling pipes are prone to aging during use, leading to frequent leaks. Existing technologies are not effective in preventing leaks.

Method used

The design employs a combination of sealing and connecting components, including a rotating ring, a fixed ring, a limiting ring, a top block, a movable plate, a connecting spring, an air reservoir, a sealing ring, and a water-absorbing expansion strip. Gas flow enables the sealing ring to expand and the water-absorbing expansion strip to seal, enhancing connection stability and sealing performance.

Benefits of technology

It improves the sealing performance of liquid cooling pipe connections, reduces the aging rate of sealing rings, lowers the risk of leakage, simplifies construction, and enhances connection stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a liquid-cooled pipe with a leak-proof structure, belonging to the field of liquid-cooled pipeline technology. It includes: a liquid-cooled pipe, with a plug fixedly installed at one end of the pipe, and a water-absorbing expansion strip fixedly installed at one end of the plug; and a sealing assembly, which is disposed at the other end of the liquid-cooled pipe. In this utility model, the sealing assembly enables a staggered connection of two liquid-cooled pipes, increasing the connection range and ensuring the connection stability. Simultaneously, the water-absorbing expansion strip seals the connection end, achieving a seal at the liquid-cooled pipe connection. During the connection process, the flow of gas causes the sealing ring to expand outwards, ensuring a good fit between the sealing ring and the slot of the liquid-cooled pipe. The sealing ring and the water-absorbing expansion strip work together to achieve a double seal for the liquid-cooled pipe, further strengthening the sealing performance at the connection point and thus achieving the purpose of preventing leakage.
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Description

Technical Field

[0001] This utility model belongs to the field of liquid cooling pipeline technology, and in particular relates to a liquid cooling pipeline with a leak-proof structure. Background Technology

[0002] Liquid cooling pipes are key components used in liquid cooling systems. They are mainly responsible for transporting cryogenic fluids and dissipating heat through conduction. Their main function is to deliver coolant from the liquid cooling source to the heat-generating components of the equipment, and remove heat through fluid circulation to ensure the normal operation of the equipment.

[0003] Currently, most liquid cooling pipes are connected using nuts, and then sealed with a single sealing ring. Since the sealing ring is located inside the liquid cooling pipe, it comes into direct contact with the liquid during use. As the liquid cooling pipe is used for a longer period of time, the sealing ring will gradually age, thereby reducing the sealing effect of the sealing ring and causing leakage at the connection of the liquid cooling pipe. To address this, a liquid cooling pipe with a leak-proof structure is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a liquid cooling pipe with a leak-proof structure to solve the problem of leakage at the connection of the liquid cooling pipe.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a liquid-cooled pipe with a leak-proof structure, comprising: a liquid-cooled pipe, wherein a slot is provided on the inner surface of one end of the liquid-cooled pipe, and an insert is fixedly installed at the other end of the liquid-cooled pipe, and a water-absorbing expansion strip is fixedly installed at one end of the insert; a connecting assembly, wherein the connecting assembly is disposed at one end of the liquid-cooled pipe to connect two liquid-cooled pipes; and a sealing assembly, wherein the sealing assembly is disposed at the other end of the liquid-cooled pipe to seal the connection between the two liquid-cooled pipes; wherein the sealing assembly comprises a rotating ring, a fixed ring, and a movable plate, wherein a groove is provided on the side wall of the rotating ring, a limiting ring is fixedly installed on the inner surface of the rotating ring, and a plurality of top blocks are fixedly installed on the inner surface of the limiting ring, the limiting ring being used to limit the rotation of the rotating ring.

[0006] As a further description of the above technical solution:

[0007] The inner surface of the fixing ring is fixedly connected to the outer surface of the insertion tube, and the fixing ring is attached to the other end of the liquid cooling tube. The outer surface of the fixing ring is provided with a limiting groove, which cooperates with the limiting ring to ensure the connection stability between the rotating ring and the fixing ring.

[0008] As a further description of the above technical solution:

[0009] A blocking ring is fixedly installed on the inner wall of the limiting groove. A through groove is provided on the outer surface of the blocking ring. The inner surface of the rotating ring is rotatably connected to the outer surface of the fixed ring. The limiting ring and the limiting groove are mutually adapted.

[0010] As a further description of the above technical solution:

[0011] One end of the top block contacts the outer surface of the blocking ring, and a connecting spring is fixedly installed on the upper surface of the movable plate. The connecting springs are located on both sides of the through groove and serve to connect and reset.

[0012] As a further description of the above technical solution:

[0013] One end of the connecting spring is fixedly connected to the inner surface of the blocking ring. A pressing block is fixedly installed on the upper surface of the movable plate. One end of the pressing block extends to the outside of the upper surface of the blocking ring through a through groove. The top block cooperates with the pressing block. When the top rod moves, it presses the pressing block, causing the pressing block to move towards the bottom surface of the limiting groove. The pressing block is in the shape of an equilateral trapezoid.

[0014] As a further description of the above technical solution:

[0015] An air reservoir is fixedly installed on the lower surface of the movable plate. The lower surface of the air reservoir is fixedly connected to the inner wall of the bottom surface of the limiting groove. A connecting pipe is installed on the lower surface of the air reservoir. One end of the connecting pipe passes through the inside of the fixed ring and extends to the outside of the side wall of the fixed ring. The movable plate compresses the air reservoir, and the connecting pipe is used for gas transportation.

[0016] As a further description of the above technical solution:

[0017] A sealing ring is fixedly installed on the outer surface of the cannula. The sealing ring has a chamber inside, and an expansion airbag is fixedly installed on the inner wall of the chamber. One end of the connecting tube extends into the chamber of the sealing ring and is connected to the expansion airbag. Gas in the storage airbag is transported to the expansion airbag of the sealing ring through the connecting tube to realize the expansion function of the sealing ring.

[0018] As a further description of the above technical solution:

[0019] The connecting assembly includes a flange, the inner surface of which is fixedly connected to the outer surface of the liquid cooling pipe. A retaining strip is fixedly installed on the side wall of the flange. The retaining strip is right-angled and fits into a retaining groove. Both the inner walls of the flange and the rotating ring are provided with screw holes. Fastening bolts are provided on the inner wall of the screw holes of the flange. The flange and the rotating ring cooperate to realize the connection between the two liquid cooling pipes.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0021] 1. In this utility model, by setting a sealing component, the insertion tube of one liquid cooling tube is inserted into the slot of another liquid cooling tube, realizing the staggered connection of the two liquid cooling tubes, increasing the connection range of the two liquid cooling tubes, and ensuring the connection stability of the liquid cooling tubes. At the same time, the water-absorbing expansion strip is used to seal the connection end, realizing the sealing of the liquid cooling tube connection. During the connection process of the liquid cooling tubes, the flow of gas realizes the function of the sealing ring expanding outward, ensuring the fit of the sealing ring and the slot of the liquid cooling tube. The sealing ring and the water-absorbing expansion strip work together to achieve double sealing of the liquid cooling pipe, further strengthening the sealing performance of the liquid cooling pipe connection, thereby achieving the purpose of preventing liquid leakage of the liquid cooling pipe, while reducing the number of direct contacts between the sealing ring and the liquid, and slowing down the aging rate of the sealing ring.

[0022] 2. In this utility model, by providing a connecting component, the slot and the strip cooperate with each other to achieve a quick connection between the flange and the rotating plate, reducing the complexity of splicing the liquid cooling pipe and thus reducing the construction difficulty of the liquid cooling pipe. By using the cooperation of fastening bolts and fastening nuts, the fit of the connection between the two liquid cooling pipes is increased, which on the one hand ensures the stability of the connection of the liquid cooling pipe, and on the other hand reduces the possibility of leakage at the connection of the liquid cooling pipe through a tight connection, thereby improving the sealing performance of the liquid cooling pipe. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of a liquid-cooled pipe with a leak-proof structure.

[0024] Figure 2 This is an exploded structural diagram of a liquid-cooled pipe with a leak-proof structure.

[0025] Figure 3 This is an exploded structural diagram of a connecting component in a liquid-cooled pipeline with a leak-proof structure.

[0026] Figure 4 This is a cross-sectional schematic diagram of a connecting component in a liquid-cooled pipeline with a leak-proof structure.

[0027] Legend:

[0028] 1. Liquid cooling pipe; 2. Slot; 3. Connecting assembly; 31. Flange; 32. Clip; 33. Fastening bolt; 4. Sealing assembly; 41. Rotating ring; 42. Slot; 43. Limiting ring; 44. Top block; 45. Fixing ring; 46. Limiting groove; 47. Blocking ring; 48. Sealing ring; 49. Connecting pipe; 410. Connecting spring; 411. Movable plate; 412. Air reservoir; 413. Extrusion block; 5. Insertion tube; 6. Water absorption expansion strip. Detailed Implementation

[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] In specific implementation, such as Figures 1-4 As shown, this utility model provides a technical solution: a liquid cooling pipe 1 with a leak-proof structure, comprising a liquid cooling pipe 1, a slot 2 provided on the inner surface of one end of the liquid cooling pipe 1, an insert 5 fixedly installed at the other end of the liquid cooling pipe 1, and a water-absorbing expansion strip 6 fixedly installed at one end of the insert 5; a connecting assembly 3, disposed at one end of the liquid cooling pipe 1, for connecting two liquid cooling pipes 1; and a sealing assembly 4, disposed at the other end of the liquid cooling pipe 1, for sealing the connection between the two liquid cooling pipes 1; wherein, the sealing assembly 4 includes a rotating ring 41. The rotating ring 45 has a fixed ring 45 and a movable plate 411. A groove 42 is provided on the side wall of the rotating ring 41. A limiting ring 43 is fixedly installed on the inner surface of the rotating ring 41. Several top blocks 44 are fixedly installed on the inner surface of the limiting ring 43. The inner surface of the fixed ring 45 is fixedly connected to the outer surface of the insertion tube 5. The fixed ring 45 is attached to the other end of the liquid cooling tube 1. A limiting groove 46 is provided on the outer surface of the fixed ring 45. A blocking ring 47 is fixedly installed on the inner wall of the limiting groove 46. A through groove is provided on the outer surface of the blocking ring 47. The inner surface of the rotating ring 41 is connected to the outer surface of the insertion tube 5. The outer surface of the fixed ring 45 is rotatably connected, the limiting ring 43 and the limiting groove 46 are mutually adapted, one end of the top block 44 contacts the outer surface of the blocking ring 47, a connecting spring 410 is fixedly installed on the upper surface of the movable plate 411, the connecting spring 410 is located on both sides of the through groove, one end of the connecting spring 410 is fixedly connected to the inner surface of the blocking ring 47, a pressing block 413 is fixedly installed on the upper surface of the movable plate 411, one end of the pressing block 413 extends through the through groove to the outside of the upper surface of the blocking ring 47, and the lower surface of the movable plate 411 is fixed. An air reservoir 412 is installed, the lower surface of which is fixedly connected to the inner wall of the bottom surface of the limiting groove 46. A connecting tube 49 is installed on the lower surface of the air reservoir 412. One end of the connecting tube 49 passes through the inside of the fixing ring 45 and extends to the outside of the side wall of the fixing ring 45. A sealing ring 48 is fixedly installed on the outer surface of the insertion tube 5. A chamber is provided inside the sealing ring 48. An inflatable airbag is fixedly installed on the inner wall of the chamber. One end of the connecting tube 49 extends into the chamber of the sealing ring 48 and is connected to the inflatable airbag.

[0031] When the rotating ring 41 drives the limiting ring 43 to rotate within the limiting groove 46, the limiting ring 43 will cause the top block 44 to slide on the outer surface of the blocking ring 47. As the screw hole on the rotating ring 41 aligns with the screw hole on the flange 31, the top rod will move towards the displacement of the pressing block 413, thereby pressing the pressing block 413. This causes the pressing block 413 to move towards the bottom surface of the limiting groove 46 under the connection of the connecting spring 410 and the movable plate 411. When the pressing block 413 moves downward, it will drive the movable plate 411 to move downward synchronously. The movable plate 411 will press the air storage bag 412. The gas inside the compressed air storage bag 412 will then be released through the connecting spring 410. The gas is delivered from the connector 49 into the expansion bladder inside the sealing ring 48. As the gas inside the expansion bladder gradually increases, the sealing ring 48 expands outward, thus tightly fitting against the inner surface of the slot 2. During the use of the liquid cooling pipe 1, the water-absorbing expansion strip 6 expands after absorbing liquid, thereby sealing the connection between the end wall of the insertion tube 5 and the inner wall of the slot 2. The sealing ring 48 seals the inner surface of the slot 2 and the outer surface of the insertion tube 5. The expansion function of the sealing ring 48 is achieved through the flow of gas, and at the same time, it works with the water-absorbing expansion strip 6 to achieve a double seal, thereby improving the sealing performance of the connection between the two liquid cooling pipes 1.

[0032] like Figures 1-2 As shown, the connecting assembly 3 includes a flange 31, the inner surface of which is fixedly connected to the outer surface of the liquid cooling pipe 1. A retaining strip 32 is fixedly installed on the side wall of the flange 31. The retaining strip 32 is right-angled and is adapted to the retaining groove 42. Both the inner walls of the flange 31 and the rotating ring 41 are provided with screw holes, and fastening bolts 33 are provided on the inner wall of the screw holes of the flange 31.

[0033] When the insertion tube 5 of one liquid cooling tube 1 is inserted into the slot 2 of another liquid cooling tube 1, the water-absorbing expansion strip 6 will adhere to the inner wall of the slot 2. At the same time, the sealing ring 48 will also move into the slot 2, located between the insertion tube 5 and the slot 2. When the flange 31 and the rotating ring 41 are in contact, the retaining strip 32 will embed into the retaining groove 42. Then, the rotating ring 41 will rotate within the retaining groove 46 under the restriction of the retaining ring 43. At this time, the retaining strip 32 will be embedded deep into the retaining groove 42 and then blocked by the retaining groove 42. This connects the flange 31 to the rotating ring 41, with the screw holes on the flange 31 and the rotating ring 41 corresponding. Then, the fastening bolts 33 are passed through the inside of the two screw holes and fixed with fastening nuts, so that the flange 31 and the rotating ring 41 fit tightly together. The misalignment of the slot 42 and the clip 32 increases the connection stability between the two liquid cooling pipes 1. The fastening bolts 33 are then used to fix the connection, improving the tightness of the connection between the two liquid cooling pipes 1.

[0034] Working principle: Insert the tube 5 of one liquid cooling tube 1 into the slot 2 of another liquid cooling tube 1. At this time, the water absorption expansion strip 6 will fit against the inner wall of the slot 2. At the same time, the sealing ring 48 will also move into the slot 2, located between the tube 5 and the slot 2. When the flange 31 and the rotating ring 41 are in contact, the retaining strip 32 will be embedded in the retaining groove 42. Then, the rotating ring 41 will rotate in the retaining groove 46 under the limit of the retaining ring 43. At this time, the retaining strip 32 will be embedded deep into the retaining groove 42 and then blocked by the retaining groove 42, thereby connecting the flange 31 and the rotating ring 41. At this time, the bolt holes on the flange 31 and the rotating ring 41 correspond. Then, the fastening bolt 33 is passed through the inside of the two bolt holes, and the fastening nut is used to fix the fastening bolt 33, thereby making the flange 31 and the rotating ring 41 fit tightly.

[0035] When the rotating ring 41 drives the limiting ring 43 to rotate within the limiting groove 46, the limiting ring 43 will cause the top block 44 to slide on the outer surface of the blocking ring 47. As the screw hole on the rotating ring 41 aligns with the screw hole on the flange 31, the top rod will move towards the displacement of the pressing block 413, thereby pressing the pressing block 413. This causes the pressing block 413 to move towards the bottom surface of the limiting groove 46 under the connection of the connecting spring 410 and the movable plate 411. When the pressing block 413 moves downward, it will drive the movable plate 411 to move downward synchronously. The movable plate 411 will then press against the storage... The airbag 412 is compressed, and the gas inside the compressed airbag 412 is transported through the connecting pipe 49 to the expansion airbag in the cavity of the sealing ring 48. As the gas in the expansion airbag gradually increases, the sealing ring 48 will expand outward, thus tightly fitting the inner surface of the slot 2. During the use of the liquid cooling pipe 1, the water absorption expansion strip 6 will expand after absorbing liquid, thereby sealing the connection between the end wall of the insertion tube 5 and the inner side wall of the slot 2. The sealing ring 48 seals the inner surface of the slot 2 and the outer surface of the insertion tube 5.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A liquid cooling tube (1) having a liquid leakage prevention structure, characterized by: include: A liquid cooling pipe (1) is provided with a slot (2) on the inner surface of one end of the liquid cooling pipe (1), and a plug tube (5) is fixedly installed at the other end of the liquid cooling pipe (1). A water-absorbing expansion strip (6) is fixedly installed at one end of the plug tube (5). A connecting component (3) is disposed at one end of a liquid cooling pipe (1) to connect two liquid cooling pipes (1); A sealing assembly (4) is provided at the other end of the liquid cooling pipe (1) to seal the connection between the two liquid cooling pipes (1); The sealing assembly (4) includes a rotating ring (41), a fixed ring (45) and a movable plate (411). The rotating ring (41) has a slot (42) on its side wall. A limiting ring (43) is fixedly installed on the inner surface of the rotating ring (41). Several top blocks (44) are fixedly installed on the inner surface of the limiting ring (43).

2. The liquid cooling pipe (1) with a leak-proof structure according to claim 1, characterized in that, The inner surface of the fixing ring (45) is fixedly connected to the outer surface of the insertion tube (5), the fixing ring (45) is attached to the other end of the liquid cooling tube (1), and the outer surface of the fixing ring (45) is provided with a limiting groove (46).

3. A liquid cooling pipe (1) with a leak-proof structure according to claim 2, characterized in that, A blocking ring (47) is fixedly installed on the inner wall of the limiting groove (46). A through groove is provided on the outer surface of the blocking ring (47). The inner surface of the rotating ring (41) is rotatably connected to the outer surface of the fixed ring (45). The limiting ring (43) and the limiting groove (46) are mutually adapted.

4. A liquid cooling pipe (1) with a leak-proof structure according to claim 3, characterized in that, One end of the top block (44) is in contact with the outer surface of the blocking ring (47), and a connecting spring (410) is fixedly installed on the upper surface of the movable plate (411). The connecting spring (410) is located on both sides of the through groove.

5. A liquid cooling pipe (1) with a leak-proof structure according to claim 4, characterized in that, One end of the connecting spring (410) is fixedly connected to the inner surface of the blocking ring (47), and a pressing block (413) is fixedly installed on the upper surface of the movable plate (411). One end of the pressing block (413) extends to the outside of the upper surface of the blocking ring (47) through a through groove.

6. A liquid cooling pipe (1) with a leak-proof structure according to claim 5, characterized in that, An air reservoir (412) is fixedly installed on the lower surface of the movable plate (411). The lower surface of the air reservoir (412) is fixedly connected to the inner wall of the bottom surface of the limiting groove (46). A connecting pipe (49) is connected to the lower surface of the air reservoir (412). One end of the connecting pipe (49) passes through the inside of the fixing ring (45) and extends to the outside of the side wall of the fixing ring (45).

7. A liquid cooling pipe (1) with a leak-proof structure according to claim 6, characterized in that, A sealing ring (48) is fixedly installed on the outer surface of the cannula (5). A chamber is provided inside the sealing ring (48). An inflatable airbag is fixedly installed on the inner wall of the chamber. One end of the connecting tube (49) extends into the chamber of the sealing ring (48). One end of the connecting tube (49) is connected to the inflatable airbag.

8. A liquid-cooled pipe (1) with a leak-proof structure according to claim 7, characterized in that, The connecting assembly (3) includes a flange (31), the inner surface of which is fixedly connected to the outer surface of the liquid cooling pipe (1), and a retaining strip (32) is fixedly installed on the side wall of the flange (31). The retaining strip (32) is right-angled and is adapted to the retaining groove (42). Both the inner walls of the flange (31) and the rotating ring (41) are provided with screw holes, and fastening bolts (33) are provided on the inner wall of the screw holes of the flange (31).