Quick-screwing connector easy to disassemble
By incorporating a locking and sealing component in the quick-connect fitting, the adjusting nut causes the movable pressure ring to move to the right, thus solving the problem of needing to unscrew and reinstall the locking nut in the prior art and enabling more convenient hose disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO AMOS PNEUMATIC COMPLETE SET CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-19
AI Technical Summary
Existing quick-connect fittings require unscrewing the lock nut and reinstalling them when disassembling the hose, making the disassembly process inconvenient.
An easy-to-disassemble quick-tight connector was designed. By setting a locking and sealing component, the adjusting nut drives the movable pressure ring to move to the right, avoiding the nut and pressure ring being simultaneously sleeved on the outside of the hose, and directly pulling the hose away from the connector.
The disassembly process is simplified, eliminating the need for separate recovery steps of the adjusting nut and movable pressure ring, thus improving the ease of disassembly.
Smart Images

Figure CN224261210U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of quick-connect couplings, and in particular to an easy-to-disassemble quick-connect coupling. Background Technology
[0002] Quick-connect fittings are generally made of materials such as stainless steel and brass. Typically, one end is an external threaded connector, and the other end has a structure that allows for a press-fit connection with a plastic hose. Some also have locking components such as nuts. When in use, the plastic hose is inserted into the corresponding port of the quick-connect fitting, and the nut is rotated to press the hose tightly. The friction between the nut and the hose, as well as any existing sealing gaskets, are used to achieve a sealed connection, thus achieving a quick and secure connection of the pipeline.
[0003] When disassembling or replacing the connected hose, the existing quick-connect fittings require first unscrewing the locking nut from the fitting body to release the hose. At this time, the unscrewed locking nut will be fitted onto the outside of the hose. When the hose is pulled out of the fitting body, the locking nut needs to be retrieved and reinstalled on the outside of the fitting body, which is too inconvenient in actual use.
[0004] Therefore, it is necessary to invent an easy-to-disassemble quick-connect coupling to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide an easy-to-disassemble quick-tight connector that prevents the adjusting nut and movable pressure ring from being disassembled simultaneously while still attached to the outside of the hose during hose disassembly. This eliminates the need for separate retraction of the adjusting nut and movable pressure ring, making the disassembly process more convenient. This addresses the problem in the background art where, when disassembling or replacing the connected hose, the locking nut must first be unscrewed from the connector body to release the hose's lock. At this point, the unscrewed locking nut is attached to the outside of the hose, and when the hose is subsequently pulled out of the connector body, the locking nut must be retrieved and reinstalled, which is extremely inconvenient in practical use.
[0006] According to one aspect of this disclosure, the following technical solution is provided: an easy-to-disassemble quick-connect coupling, comprising:
[0007] A connector assembly for mounting a guide assembly and a locking and sealing assembly;
[0008] A guide assembly for guiding the hose; and
[0009] A locking and sealing assembly includes an adjusting nut sleeved on the outside of the second connecting part and threadedly connected to the second connecting part. A movable pressure ring is rotatably connected to the left side of the adjusting nut via a bearing. An avoidance groove adapted to the second connecting part is provided on the right side of the adjusting nut, and a pressing groove is provided on the left side of the movable pressure ring.
[0010] According to at least one embodiment of the present disclosure, the quick-connect fitting assembly includes a bent section, one end of which is provided with an integrally formed first connecting portion, and the outer side of the first connecting portion is provided with a first thread.
[0011] According to at least one embodiment of the present disclosure, the other end of the bent pipe is provided with an integrally formed second connecting part, and the outer side of the second connecting part is provided with a second thread.
[0012] According to at least one embodiment of the present disclosure, the easy-to-disassemble quick-connect coupling has an integrally formed extension at the end of the second connection portion.
[0013] According to at least one embodiment of the present disclosure, the easy-to-disassemble quick-tight connector includes an inner guide portion, a smooth portion, and an outer guide portion that are sequentially fixedly sleeved on the left end of the outer side of the extension portion from right to left.
[0014] The technical effects and advantages of this utility model are as follows:
[0015] This invention features a locking and sealing assembly. When disassembling the hose, rotating the adjusting nut causes the movable pressure ring to move to the right along the second connecting part. At this point, the clamping groove no longer clamps and seals the hose outside the inner guide part. Then, one hand holds the bend, and the other hand holds the hose, pulling it until the hose disengages from the inner guide part, the smooth part, and the outer guide part. Compared to similar products in the prior art, this invention prevents the adjusting nut and the movable pressure ring from being disassembled simultaneously outside the hose during disassembly. Therefore, there is no need to separately retrieve the adjusting nut and the movable pressure ring, making the disassembly process more convenient. Attached Figure Description
[0016] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.
[0017] Figure 1 This is a schematic diagram of the overall structure of an easy-to-disassemble quick-connect coupling according to one embodiment of the present disclosure.
[0018] Figure 2 This is a schematic diagram of the connector assembly structure of an easy-to-disassemble quick-tight connector according to one embodiment of the present disclosure.
[0019] Figure 3 This is a schematic diagram of the guide assembly and locking sealing assembly of an easy-to-disassemble quick-tight connector according to one embodiment of the present disclosure.
[0020] The specific labels in the attached figures are as follows:
[0021] 1. Connector assembly; 11. Bend; 12. First connecting part; 13. Second connecting part; 14. Extension part;
[0022] 2. Guide assembly; 21. Inner guide section; 22. Smooth section; 23. Outer guide section;
[0023] 3. Locking and sealing assembly; 31. Adjusting nut; 32. Movable pressure ring; 33. Clearance groove; 34. Pressing groove. Detailed Implementation
[0024] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.
[0025] Figure 1 This is a schematic diagram of the overall structure of an easy-to-disassemble quick-connect coupling according to one embodiment of the present disclosure.
[0026] Figure 2 This is a schematic diagram of the connector assembly 1 of an easy-to-disassemble quick-tight connector according to one embodiment of the present disclosure.
[0027] Figure 3 This is a schematic diagram of the guide assembly 2 and locking and sealing assembly 3 of an easy-to-disassemble quick-tight connector according to one embodiment of the present disclosure.
[0028] like Figures 1-3 As shown, the easy-to-disassemble quick-tight connector disclosed herein may include components such as a connector assembly 1, a guide assembly 2, and a locking and sealing assembly 3.
[0029] like Figure 2As shown in this disclosure, the connector assembly 1 includes a bent pipe portion 11. One end of the bent pipe portion 11 is provided with an integrally formed first connecting portion 12, and the outer side of the first connecting portion 12 is provided with a first thread. The other end of the bent pipe portion 11 is provided with an integrally formed second connecting portion 13, the outer side of the second connecting portion 13 is provided with a second thread, and the end of the second connecting portion 13 is provided with an integrally formed extension portion 14.
[0030] like Figure 3 As shown, in a preferred embodiment, the guide component 2 includes an inner guide portion 21, a smooth portion 22, and an outer guide portion 23, which are fixedly sleeved on the left side of the extension portion 14 from right to left.
[0031] Therefore, when connecting the hose, the hose is sleeved on the outside of the outer guide 23, the smooth part 22, the inner guide 21 and the extension 14 through the guide of the outer guide 23. Then, the adjusting nut 31 is rotated, so that the adjusting nut 31 drives the movable pressure ring 32 to move to the left continuously until the clamping groove 34 fits against the outside of the hose and squeezes the hose. Finally, the inner guide 21 cooperates to achieve the clamping and sealing of the hose from the inside and outside of the hose respectively.
[0032] like Figure 3 As shown in this disclosure, the locking and sealing assembly 3 includes an adjusting nut 31 that is sleeved on the outside of the second connecting part 13 and threadedly connected to the second connecting part 13. A movable pressure ring 32 is rotatably connected to the left side of the adjusting nut 31 via a bearing. An avoidance groove 33 adapted to the second connecting part 13 is provided on the right side of the adjusting nut 31, and a pressing groove 34 is provided on the left side of the movable pressure ring 32.
[0033] Therefore, when disassembling the hose, the adjusting nut 31 is rotated, causing the adjusting nut 31 to move the movable pressure ring 32 to the right along the second connecting part 13. At this time, the clamping groove 34 no longer clamps and seals the hose outside the inner guide part 21. Then, one hand holds the bend part 11, and the other hand holds the hose and pulls the hose until the hose is detached from the inner guide part 21, the smooth part 22 and the outer guide part 23. Compared with similar products in the prior art, when disassembling the hose, the adjusting nut 31 and the movable pressure ring 32 will not be disassembled simultaneously while they are sleeved on the outside of the hose. Therefore, there is no need to separately recycle the adjusting nut 31 and the movable pressure ring 32 afterward, making the disassembly process more convenient.
[0034] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.
[0035] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.
Claims
1. A quick-connect coupling that is easy to disassemble, characterized in that, include: A connector assembly for mounting a guide assembly and a locking and sealing assembly; A guide assembly for guiding the hose; and A locking and sealing assembly includes an adjusting nut sleeved on the outside of the second connecting part and threadedly connected to the second connecting part. A movable pressure ring is rotatably connected to the left side of the adjusting nut via a bearing. An avoidance groove adapted to the second connecting part is provided on the right side of the adjusting nut, and a pressing groove is provided on the left side of the movable pressure ring.
2. The easy-to-disassemble quick-connect coupling according to claim 1, characterized in that: The connector assembly includes a bent section, one end of which is provided with an integrally formed first connecting part, and the outer side of the first connecting part is provided with a first thread.
3. The easy-to-disassemble quick-connect coupling according to claim 2, characterized in that: The other end of the bend is provided with an integrally formed second connecting part, and the outer side of the second connecting part is provided with a second thread.
4. The easy-to-disassemble quick-connect coupling according to claim 3, characterized in that: The end of the second connecting part is provided with an integrally formed extension.
5. The easy-to-disassemble quick-connect coupling according to claim 4, characterized in that: The guide assembly includes an inner guide portion, a smooth portion, and an outer guide portion, which are fixedly sleeved on the left side of the extension portion from right to left.