A plastic-based quick connector

Abstract

The application discloses a plastic-based quick plug connector, which comprises a plug-in part, a first channel is axially arranged in the center of the plug-in part, an end of the plug-in part is provided with a plug-in portion, a plurality of limiting guide grooves are equidistantly and annularly arranged on the outer wall of the plug-in portion, a plug-in member comprises a fixing part and a rotating part, the rotating part is hingedly connected to the fixing part, a plug-in groove is formed between the rotating part and the fixing part, a limiting protrusion corresponding to the limiting guide groove is annularly arranged on the inner wall of the rotating part, the plug-in portion is plugged into the plug-in groove, the limiting protrusion is arranged in the limiting guide groove, the rotating part is rotated to make the limiting protrusion separate from the limiting guide groove and abut against the outer wall of the plug-in part, and quick locking is realized, the application has simple structure and convenient operation, and can be applied to the connection of large and heavy pipelines.

Description

Technical Field

[0001] This application relates to the field of quick-connect coupling technology, and in particular to a quick-connect coupling made primarily of plastic. Background Technology

[0002] Quick-connect fittings are intermediate connectors used to connect two or more pipes. They are widely used in the quick-connect splicing of gas and liquid pipelines in the automotive manufacturing and industrial automation fields.

[0003] Common pipe connections typically involve fastening with flanges and screws / nuts, a complex, cumbersome, and inefficient process. Therefore, quick-connect couplings have emerged. Common quick-connect couplings for pipes usually use threads or elastic rings for assembly or fastening. Threaded connections require rotating the pipe, which can be inconvenient, especially for thicker or heavier pipes. Elastic rings, which use friction to hold the inserted pipe in place and then unlock with a button, have more components, making assembly difficult and increasing production costs. Therefore, this application aims to disclose a quick-connect coupling with a simple structure and convenient operation.

[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0005] Based on this, this application provides a quick-connect connector made primarily of plastic to solve one of the aforementioned technical problems.

[0006] The technical solution adopted by this application to solve its technical problem is: a quick-connect connector mainly made of plastic, comprising: a plug-in component, wherein a first channel is axially opened at the center of the plug-in component, and a plug-in portion is formed at the end of the plug-in component, wherein a plurality of limiting guide grooves are circumferentially opened at equal intervals on the outer wall of the plug-in portion; a receiving component, comprising a fixing component and a rotating component, wherein the rotating component is hinged to the fixing component, and a plug-in groove is formed between the rotating component and the fixing component, wherein a limiting protrusion corresponding to the limiting guide groove is circumferentially opened on the inner wall of the rotating component; the plug-in portion is inserted into the plug-in groove, the limiting protrusion is placed in the limiting guide groove, and rotating the rotating component causes the limiting protrusion to disengage from the limiting guide groove and abut against the outer wall of the plug-in component, thereby achieving quick locking.

[0007] In some embodiments, the bottom surface of the guide groove and the surface of the limiting protrusion are both rounded, the main body of the support is made of plastic, and the limiting protrusion is made of rubber.

[0008] In some embodiments, a plurality of receiving annular grooves are provided on the inner wall of the insertion part, and a sealing ring is provided in the receiving annular groove.

[0009] In some embodiments, the fastener includes a fixing ring and a mounting ring. The fixing ring has a second channel axially formed at its center. When the connector is inserted into the support, the second channel communicates with the first channel, and the inner wall of the fixing ring is flush with the inner wall of the connector.

[0010] In some embodiments, the mounting ring is formed on the outer wall of the fixing ring, and the top and bottom of the mounting ring are provided with circumferential grooves. The grooves have a trapezoidal cross-section, and a limiting surface is formed on the inner wall of the grooves.

[0011] In some embodiments, one end of the rotating member is formed with an annular block having the same cross-sectional shape as the slot. The rotating member is assembled on the fixed member through the cooperation of the slot and the block, and the rotating member can rotate freely on the fixed member.

[0012] In some embodiments, a plurality of friction blocks are evenly distributed in a ring on the outer wall of the rotating component.

[0013] The beneficial effects of this application are as follows: By opening a limiting guide groove on the plug-in and setting a limiting protrusion on the rotating part, after the plug-in is inserted into the plug-in groove of the receiving plug, simply turning the rotating part will press the outer wall of the plug-in by the limiting protrusion to achieve quick locking and fixing of the pipe after plugging. Unlocking only requires turning the rotating part again. The structure is simple and the operation generally requires tools. Compared with the traditional thread or screw locking method, the operation is simpler and it can be applied to quick plugging and locking of large and heavy pipes. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a cross-sectional schematic diagram of this application.

[0016] Figure 2 This is an exploded view of the connectors and support components of this application.

[0017] Figure 3 This is an exploded and cross-sectional schematic diagram of the fixing and rotating parts of this application.

[0018] Explanation of reference numerals: 1. Connector; 101. Connector part; 2. First channel; 3. Second channel; 4. Limiting guide groove; 5. Supporting component; 501. Fixing component; 502. Rotating component; 6. Connecting groove; 7. Limiting protrusion; 8. Receiving ring groove; 9. Sealing ring; 10. Fixing ring; 11. Mounting ring; 12. Slot; 13. Limiting surface; 14. Slot; 15. Friction block. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.

[0020] In the embodiments of this application, please refer to Figure 1-3 As shown, this quick-connect connector, primarily made of plastic, mainly includes: a connector 1 with a first channel 2 axially formed at its center; a connector portion 101 formed at the end of the connector 1; and several circumferentially spaced limiting guide grooves 4 on the outer wall of the connector portion 101; a support component 5, including a fixing component 501 and a rotating component 502; the rotating component 502 is hinged to the fixing component 501; a connector groove 6 is formed between the rotating component 502 and the fixing component 501; and a limiting protrusion 7 corresponding to the limiting guide groove 4 is circumferentially formed on the inner wall of the rotating component 502; the connector portion 101 is inserted into the connector groove 6; the limiting protrusion 7 is placed in the limiting guide groove 4; rotating the rotating component 502 causes the limiting protrusion 7 to disengage from the limiting guide groove 4 and press against the outer wall of the connector 1, achieving quick locking. When the insertion part 101 is inserted into the insertion slot 6, the outer wall of the insertion part 101 fits against the inner wall of the insertion slot 6.

[0021] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.

[0022] like Figure 2As shown, the bottom surface of the guide groove and the surface of the limiting protrusion 7 are both rounded. The rounded part is the contact part between the guide groove and the limiting protrusion 7 when rotating, so that the rotating part 502 can rotate relatively easily. The main body of the bearing 5 is made of plastic, and the limiting protrusion 7 is made of rubber. The rubber limiting protrusion 7 can generate elastic deformation under the guidance of the rounded surface of the guide groove when the rotating part 502 is screwed, and press against the outer wall of the insertion part 101. Since the gap between the insertion part 101 and the insertion groove 6 is very small, a tool is required to screw the rotating part 502. After being screwed and tightened, the rotating part 502 cannot rotate under natural conditions and can only be unlocked by manual operation.

[0023] like Figure 1 As shown, a plurality of receiving annular grooves 8 are provided on the inner wall of the insertion part 101, and a sealing ring 9 is provided in the receiving annular groove 8. After the insertion part 101 is inserted, the sealing ring 9 abuts against the inner wall of the insertion part 101 to prevent leakage and has good sealing performance.

[0024] like Figure 3 As shown, the fixing member 501 includes a fixing ring 10 and a mounting ring 11. The fixing ring 10 has a second channel 3 axially opened at its center. When the connector 1 is inserted into the support member 5, the second channel 3 communicates with the first channel 2. The inner wall of the fixing ring 10 is flush with the inner wall of the connector 1 to ensure smooth fluid flow.

[0025] Furthermore, the mounting ring 11 is formed on the outer wall of the fixed ring 10, and a slot 12 is formed annularly on its top and bottom. The slot 12 has a trapezoidal cross-section, and a limiting surface 13 is formed on the inner wall of the slot 12. One end of the rotating member 502 has an annular block 14 with the same cross-sectional shape as the slot 12. The rotating member 502 is assembled on the fixed member 501 through the cooperation of the slot 12 and the block 14. The rotating member 502 can rotate freely on the fixed member 501. When inserted, the block 14 can deform to insert into the slot 12. After the block 14 is fully inserted into the slot 12, it is limited by the limiting surface 13 in the slot 12, thus limiting the rotating member 502 on the mounting ring 11.

[0026] To facilitate the turning of the rotating component 502, a number of friction blocks 15 are evenly distributed in a ring on the outer wall of the rotating component 502 to increase the friction on the outer wall of the rotating component 502.

[0027] In use, firstly, insert the locking blocks 14 on the two rotating parts 502 into the locking slots 12 at the upper and lower ends of the fixing ring 10 respectively to complete the assembly of the rotating parts 502. At this time, a insertion groove 6 is formed between the rotating parts 502 and the fixing parts 501. Then, insert the insertion part 101 of the insertion part 1 into the insertion groove 6, and use a tool to tighten the rotating parts 502 to lock the insertion part 1. When rotating the rotating parts 502, it is necessary to fix the fixing parts 501 and the insertion part 1 so that the rotating parts 502 can rotate relative to the fixing parts 501. When inserting heavy or large insertion parts 1, it is only necessary to fix the fixing parts 501 and then tighten. The structure of this application is simple and easy to operate. The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A quick-connect connector made primarily of plastic, characterized in that, include: The connector has a first channel axially opened at its center, and a plug-in part is formed at the end of the connector. Several limiting guide grooves are evenly spaced and circumferentially opened on the outer wall of the plug-in part. The insert includes a fixed part and a rotating part, the rotating part is hinged to the fixed part, a insertion groove is formed between the rotating part and the fixed part, and a limiting protrusion corresponding to the limiting guide groove is circumferentially opened on the inner wall of the rotating part; The plug is inserted into the plug groove, and the limiting protrusion is placed in the limiting guide groove. Rotating the rotating member causes the limiting protrusion to disengage from the limiting guide groove and press against the outer wall of the plug, thereby achieving quick locking.

2. The quick-connect connector based on plastic as described in claim 1, characterized in that, The bottom surface of the guide groove and the surface of the limiting protrusion are both rounded. The main body of the support is made of plastic, and the limiting protrusion is made of rubber.

3. The quick-connect connector based on plastic as described in claim 1, characterized in that, The inner wall of the insertion part is provided with multiple receiving ring grooves, and a sealing ring is provided in the receiving ring groove.

4. A quick-connect connector made primarily of plastic according to claim 1, characterized in that, The fastener includes a fixing ring and a mounting ring. The fixing ring has a second channel axially opened at its center. When the connector is inserted into the support, the second channel communicates with the first channel. The inner wall of the fixing ring is flush with the inner wall of the connector.

5. A quick-connect connector based on plastic as described in claim 4, characterized in that, The mounting ring is formed on the outer wall of the fixing ring, and the top and bottom of the mounting ring are provided with circumferential grooves. The grooves have a trapezoidal cross-section, and a limiting surface is formed on the inner wall of the grooves.

6. A quick-connect connector based on plastic as described in claim 5, characterized in that, One end of the rotating component has an annular locking block with the same cross-sectional shape as the slot. The rotating component is assembled on the fixed component through the cooperation of the slot and the locking block, and the rotating component can rotate freely on the fixed component.

7. A quick-connect connector based on plastic as described in claim 1, characterized in that, The outer wall of the rotating component is evenly distributed with several friction blocks in a ring.

Images