Card sleeve mechanism that enables unlocking

By designing an anti-unlocking sleeve mechanism, and utilizing the self-resetting force of the female end locking spring and the unlocking button, the problem of automatic unlocking of the liquid cooling pipeline connection device under misoperation or vibration is solved, thus achieving the stability and safety of the pipeline connection.

CN224433785UActive Publication Date: 2026-06-30CHONGQING SULIAN PLASTIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING SULIAN PLASTIC CO LTD
Filing Date
2025-07-21
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing liquid cooling pipeline connection devices are prone to automatic unlocking under misoperation or external vibration and pulse pressure, resulting in pipeline disconnection, affecting the cooling effect of heat-generating components, and may even cause spontaneous combustion.

Method used

A locking sleeve mechanism with anti-unlock capability was designed. By setting an unlock button and a locking sleeve on the female locking spring, the locking function is achieved by using self-resetting force to prevent accidental locking. The locking sleeve and locking spring are made of POM engineering plastic.

Benefits of technology

It effectively prevents the locking mechanism from automatically unlocking due to misoperation or vibration, ensuring the stability of the pipeline connection and avoiding insufficient cooling and potential safety risks caused by disconnection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the technical field of quick-connect devices for liquid-cooled pipelines, specifically to a clamping mechanism that enables anti-unlocking. The mechanism includes a female QC upper housing, a female QC lower housing, a female sleeve, a female locking clamp, a female locking spring, a female upper housing end cap, a female locking spring unlocking button, and a male QC housing. The lower end of the female QC upper housing is connected to the upper end of the female QC lower housing. The female locking clamp is located on the outer side of the upper end of the female QC upper housing. The female upper housing end cap is located on the outer side of the top of the female QC upper housing. The female locking spring is located inside the upper end of the female QC upper housing. An unlocking button for the female locking spring is located on one side of the female locking spring. The female sleeve is located inside the lower end of the female QC upper housing. This invention prevents the female locking spring from being accidentally locked by setting a female locking clamp on the female QC upper housing to lock the female locking spring unlocking button, thus preventing the button from being pressed.
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Description

Technical Field

[0001] This application relates to the technical field of quick-connect devices for liquid-cooled pipelines, and more specifically, to a ferrule mechanism that enables anti-unlocking. Background Technology

[0002] Currently, quick-connect devices widely used in liquid cooling pipeline connections consist of a male connector and a female connector. In actual use, after the male and female terminals are plugged in, there is a risk that the locking mechanism may automatically unlock due to misoperation, external vibration, or pulse pressure. This could lead to accidental disconnection of the pipeline, resulting in ineffective cooling of heat-generating components, causing functional degradation, damage, or even spontaneous combustion. Therefore, the connection device needs to have the function of preventing the locking mechanism from being mis-locked under the above-mentioned operating conditions. Utility Model Content

[0003] The purpose of this utility model is to provide a card sleeve mechanism that can achieve anti-unlocking, which is equipped with a male plug and a female connector, wherein the lower end of the male plug and the upper end of the female connector can be detachably and quickly connected.

[0004] The female connector includes a female QC upper housing, a female QC lower housing, a female sleeve, a female valve core, a female locking sleeve, a female locking spring, a female valve stem, a female upper housing end cover, and a female locking spring unlocking button. The lower end of the female QC upper housing is connected and penetrates the upper end of the female QC lower housing. The female locking sleeve is located on the outer side of the upper end of the female QC upper housing and is slidably connected to the female QC upper housing. The female upper housing end cover is located on the outer side of the top of the female QC upper housing. The female locking spring is located on both sides inside the upper end of the female QC upper housing, and a female locking spring unlocking button is provided on one side of the female locking spring. The female locking spring unlocking button is slidably connected to one side of the female upper housing end cover. The female sleeve is located inside the lower end of the female QC upper housing. The female valve stem is located inside the lower end of the female sleeve, and the female valve core is located on the outer side of the upper end of the female valve stem.

[0005] The male connector includes a male QC housing, a male anti-reverse ring, and a male valve core. The male valve core is disposed inside the bottom of the male QC housing and is slidably connected to the inner wall of the male QC housing. The male anti-reverse ring is disposed inside the upper end of the male QC housing.

[0006] Furthermore, a female valve core return spring is provided between the lower end of the female valve core and the lower end of the female valve column; a female locking sleeve return spring is provided between the inner end of the upper end of the female locking sleeve and the top end of the female QC lower housing; and a male return spring is provided between the upper end of the male valve core and the lower end of the male anti-reverse ring.

[0007] Furthermore, the female end locking snap ring achieves its locking function through a self-resetting force, and its reset direction is orthogonal to the elastic force direction of the female end locking sleeve reset spring.

[0008] Furthermore, a female end isolation ring is provided between the top end of the female end sleeve and the inner wall of the female end QC upper housing.

[0009] Furthermore, the upper and lower ends of the female end isolation ring are provided with female end inner sealing rings, and the top of the female end valve column and the inner wall of the female end valve core are provided with female end valve core sealing rings.

[0010] Furthermore, a male valve core sealing ring is provided on the outer side of the lower end of the male valve core, and a male outer sealing ring is provided on the outer side of the middle end of the male QC housing.

[0011] Furthermore, when the male plug is fully inserted, the end face of the male valve core contacts the end face of the female valve core. At the same time, the male valve core disengages from the male outer sealing ring, and the female valve core disengages from the female valve core sealing ring, forming a connecting flow channel.

[0012] Furthermore, the lower outer side of the female end QC housing is provided with a female end color identification ring, and the upper outer side of the male end QC housing is provided with a male end color identification ring.

[0013] Furthermore, the female end locking spring unlocking button is provided with an unlocking slope, which drives the female end locking spring to move radially outward when pressed.

[0014] Furthermore, except for the female valve core sealing ring, the female inner sealing ring, the male valve core sealing ring, the male outer sealing ring, and the female locking sleeve return spring, all parts are injection molded, and the female locking sleeve and the female locking spring are made of POM engineering plastic.

[0015] Compared with the prior art, this utility model provides a female locking spring at the upper end of the QC housing, which facilitates clamping the male QC housing after insertion and prevents it from sliding out. A female locking spring unlock button is provided to allow inward sliding to release the female locking spring, thus facilitating the male QC housing's exit. A female locking sleeve is provided below the unlock button, which, when the male QC housing is inserted and locked, blocks the unlock button, preventing accidental inward sliding and opening of the female locking spring. This effectively prevents the female locking spring from being mistakenly locked. Attached Figure Description

[0016] Figure 1 This is an exploded view of the assembly of the card sleeve mechanism that enables anti-unlocking provided by this utility model;

[0017] Figure 2 This is an assembly diagram of the finished product of the card sleeve mechanism that enables anti-unlocking provided by this utility model;

[0018] Figure 3 This is an internal cross-sectional view of the card sleeve mechanism that enables anti-unlocking provided by this utility model;

[0019] Figure 4 This is a diagram showing the overall locking state of the card sleeve mechanism that enables anti-unlocking provided by this utility model.

[0020] Reference numerals used in the above figures:

[0021] 1. Female QC upper housing; 2. Female QC lower housing; 3. Female sleeve; 4. Female valve core; 5. Female color-coded ring; 6. Female inner sealing ring; 7. Female isolation ring; 8. Female valve core sealing ring; 9. Female valve core return spring; 10. Female locking sleeve; 11. Female locking snap ring; 12. Female locking sleeve return spring; 13. Female valve stem; 14. Female upper housing end cover; 15. Female locking snap ring unlocking button; 16. Male QC housing; 17. Male anti-reverse ring; 18. Male valve core; 19. Male valve core sealing ring; 20. Male return spring; 21. Male color-coded ring; 22. Male outer sealing ring. Detailed Implementation

[0022] 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. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] Reference Figure 1-4 The image shown is a preferred embodiment of the present invention.

[0026] The card sleeve mechanism that enables anti-unlocking includes a male plug and a female connector, with the lower end of the male plug and the upper end of the female connector being detachably and quickly connected internally.

[0027] The female connector includes a female QC upper housing 1, a female QC lower housing 2, a female sleeve 3, a female valve core 4, a female locking sleeve 10, a female locking spring 11, a female valve stem 13, a female upper housing end cover 14, and a female locking spring unlocking button 15. The lower end of the female QC upper housing 1 is connected and penetrates the upper end of the female QC lower housing 2. The female locking sleeve 10 is located on the outer side of the upper end of the female QC upper housing 1 and is slidably connected to the female QC upper housing 1. The female end cap 14 is located on the outer side of the top of the female end QC upper housing 1. The female end locking spring 11 is located on both sides of the upper end of the female end QC upper housing 1. The female end locking spring 11 is provided with a female end locking spring unlocking button 15 on one side. The female end locking spring unlocking button 15 is slidably connected to one side of the female end upper housing cap 14. The female end locking spring unlocking button 15 is provided with an unlocking slope. When pressed, it drives the female end locking spring 11 to move radially outward.

[0028] The female end sleeve 3 is located inside the lower end of the female end QC upper housing 1, the female end valve spool 13 is located inside the lower end of the female end sleeve 3, and the female end valve core 4 is located outside the upper end of the female end valve spool 13.

[0029] The male plug includes a male QC housing 16, a male anti-reverse ring 17, and a male valve core 18. The male valve core 18 is located inside the bottom of the male QC housing 16 and is slidably connected to the inner wall of the male QC housing 16. The male anti-reverse ring 17 is located inside the upper end of the male QC housing 16.

[0030] A female valve core return spring 9 is provided between the lower end of the female valve core 4 and the lower end of the female valve column 13. A female locking sleeve return spring 12 is provided between the upper end of the female locking sleeve 10 and the top end of the female QC lower housing 2. A male return spring 20 is provided between the upper end of the male valve core 18 and the lower end of the male anti-reverse ring 17. The female locking spring 11 achieves the locking function through self-resetting force, and its reset direction is orthogonal to the elastic force direction of the female locking sleeve return spring 12.

[0031] A female end isolation ring 7 is provided between the top of the female end sleeve 3 and the inner wall of the female end QC upper housing 1.

[0032] The upper and lower ends of the female end isolation ring 7 are provided with female end inner sealing rings 6, and the top of the female end valve column 13 is provided with a female end valve core sealing ring 8 between the female end valve core 4 and the inner wall of the female end valve core 13.

[0033] The male valve core 18 has a male valve core sealing ring 19 on its lower outer side, and the male QC housing 16 has a male outer sealing ring 22 on its middle outer side. When the male plug is fully inserted, the end face of the male valve core 18 contacts the end face of the female valve core 4, and at the same time, the male valve core 18 disengages from the male outer sealing ring 22, and the female valve core 4 disengages from the female valve core sealing ring 8, forming a connecting flow channel.

[0034] The lower outer side of the female end QC housing 2 is provided with a female end color identification ring 5, and the upper outer side of the male end QC housing 16 is provided with a male end color identification ring 21.

[0035] Except for the female valve core sealing ring 8, the female inner sealing ring 6, the male valve core sealing ring 19, the male outer sealing ring 22, and the female locking sleeve return spring 12, all parts are injection molded. The female locking sleeve 10 and the female locking spring 11 are made of POM engineering plastic.

[0036] The method of using this utility model is as follows:

[0037] 1. During the locking process, the guide bevel of the male plug contacts the locking spring 11 at the female end, pushing the female locking spring 11 outward. After the male plug is inserted into place, the female locking spring 11 moves to its (shipping) locking position under its own restoring force, locking the male plug. When the male plug and female connector are connected, the end face of the male plug abuts against the end face of the valve core inside the female connector, and the valve core inside the male plug abuts against the end face of the central support column of the lower housing of the female connector, and disengages from their respective sealing ring structures to achieve passage for fluid flow. When the male connector is installed in place, the unlocking button 15 of the female locking spring cannot be pressed, thus preventing the female locking spring 11 from being mistakenly locked.

[0038] 2. Unlocking process: First, move the female locking sleeve 10 downwards to the unlock position. Then, press the female locking spring unlock button 15 to its unlock position. The unlocking ramp on the female locking spring unlock button 15 pushes the female locking spring 11 outwards until the male plug can be smoothly moved out of the housing cavity. After the male plug is completely moved out of the housing cavity, release the female locking spring unlock button 15 and the female locking spring 11. Under the restoring force provided by the female locking spring 11, the female locking spring unlock button 15 moves to its ejection position. The female locking sleeve 10 moves to its ejection position under the push of the female locking sleeve return spring 12. At this time, the female locking spring 11 also moves to its (ejection) locking position under its own restoring force. When the male plug and female connector are in the disconnected state.

[0039] 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 and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A card sleeve mechanism capable of preventing unlocking, characterized in that, It includes a male plug and a female connector, wherein the lower end of the male plug and the upper end of the female connector are detachably and quickly connected. The female connector includes a female QC upper housing (1), a female QC lower housing (2), a female sleeve (3), a female valve core (4), a female locking sleeve (10), a female locking spring (11), a female valve stem (13), a female upper housing end cover (14), and a female locking spring unlocking button (15). The lower end of the female QC upper housing (1) is connected and penetrates the upper end of the female QC lower housing (2). The female locking sleeve (10) is located on the outer side of the upper end of the female QC upper housing (1) and is slidably connected to the female QC upper housing (1). The female upper housing end cover (14) is connected to the female QC lower housing (2). The female end locking spring (11) is located on the outer side of the top of the female end QC upper housing (1). The female end locking spring (11) is located on both sides of the upper end of the female end QC upper housing (1). The female end locking spring unlocking button (15) is provided on one side of the female end locking spring (11). The female end locking spring unlocking button (15) is slidably connected to one side of the female end upper housing end cover (14). The female end sleeve (3) is located inside the lower end of the female end QC upper housing (1). The female end valve column (13) is located inside the lower end of the female end sleeve (3). The female end valve core (4) is located on the outer side of the upper end of the female end valve column (13). The male plug includes a male QC housing (16), a male anti-reverse ring (17), and a male valve core (18). The male valve core (18) is disposed inside the bottom of the male QC housing (16) and is slidably connected to the inner wall of the male QC housing (16). The male anti-reverse ring (17) is disposed inside the upper end of the male QC housing (16).

2. The card sleeve mechanism capable of preventing unlocking according to claim 1, characterized in that, A female valve core return spring (9) is provided between the lower end of the female valve core (4) and the lower end of the female valve column (13). A female locking sleeve return spring (12) is provided between the upper end of the female locking sleeve (10) and the top of the female QC lower housing (2). A male return spring (20) is provided between the upper end of the male valve core (18) and the lower end of the male anti-reverse ring (17).

3. The card sleeve mechanism capable of preventing unlocking according to claim 2, characterized in that, The female end locking snap ring (11) achieves the locking function through self-resetting force, and its reset direction is orthogonal to the elastic force direction of the female end locking sleeve reset spring (12).

4. The card sleeve mechanism capable of preventing unlocking according to claim 3, characterized in that, A female end isolation ring (7) is provided between the top end of the female end sleeve (3) and the inner wall of the female end QC upper shell (1).

5. The card sleeve mechanism capable of preventing unlocking according to claim 4, characterized in that, The upper and lower ends of the female end isolation ring (7) are provided with female end inner sealing rings (6), and the top of the female end valve column (13) and the inner wall of the female end valve core (4) are provided with a female end valve core sealing ring (8).

6. The card sleeve mechanism capable of preventing unlocking according to claim 5, characterized in that, The lower outer side of the male valve core (18) is provided with a male valve core sealing ring (19), and the middle outer side of the male QC housing (16) is provided with a male outer sealing ring (22).

7. The card sleeve mechanism capable of preventing unlocking according to claim 6, characterized in that, When the male plug is fully inserted, the end face of the male valve core (18) contacts the end face of the female valve core (4), and at the same time, the male valve core (18) disengages from the male outer sealing ring (22), and the female valve core (4) disengages from the female valve core sealing ring (8), forming a connecting flow channel.

8. The card sleeve mechanism capable of preventing unlocking according to claim 7, characterized in that, The lower outer side of the female end QC lower housing (2) is provided with a female end color identification ring (5), and the upper outer side of the male end QC housing (16) is provided with a male end color identification ring (21).

9. The card sleeve mechanism capable of preventing unlocking according to claim 8, characterized in that, The female end locking spring unlocking button (15) is provided with an unlocking slope, which drives the female end locking spring (11) to move radially outward when pressed.

10. The card sleeve mechanism capable of preventing unlocking according to claim 9, characterized in that, Except for the female valve core sealing ring (8), the female inner sealing ring (6), the male valve core sealing ring (19), the male outer sealing ring (22), and the female locking sleeve return spring (12), all parts are injection molded. The female locking sleeve (10) and the female locking spring (11) are made of POM engineering plastic.