Quick connector

Abstract

The invention relates to the technical field of fluid transmission, and discloses a quick connector which comprises a first connecting cylinder, a female plug is fixedly connected to the outer wall of the first connecting cylinder, a ball is rotatably connected into the female plug, a first spring is slidably connected to the outer wall of the female plug, and a positioning sleeve is slidably connected to the outer wall of the first spring. The inner wall of the positioning sleeve is slidably connected to the outer wall of the first connecting cylinder, the inner wall of the female plug is slidably connected with a male plug, a limiting groove is formed in the male plug, the outer wall of the male plug is fixedly connected with a second connecting cylinder, the outer wall of the second connecting cylinder is fixedly connected with a connector body, and the outer wall of the first connecting cylinder is provided with a connecting assembly. After the male plug is inserted into the female plug, the balls are clamped in the limiting grooves in the male plug, and the positioning sleeve on the female plug is moved to extrude the first spring, so that the balls on the female plug are not abutted by the positioning sleeve any more, the male plug is separated from the limiting grooves, and the effect that operation can be achieved with one hand is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid transmission, and particularly to a quick connector. Background Art

[0002] In the fields of modern industry, mechanical equipment, household tools, and medical equipment, quick connectors, as an important connecting component, are widely used in scenarios that require frequent connection and separation. The main function of a quick connector is to provide a quick, reliable, and safe connection method so that users can efficiently complete the assembly, disassembly, or replacement operations of equipment.

[0003] Traditional quick connectors usually achieve connection and separation through threaded connection, snap connection, or spring locking. Currently, the plugs of gas flow channels usually require both hands for connection and separation, that is, when connecting, the threaded joint on the female plug needs to be rotated so that the threaded joint on the female plug can be threadedly connected to the threaded plug on the male plug, resulting in relatively troublesome plugging and separation. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a quick connector to solve the problem that in the past, both hands were required for connecting or separating the plug, resulting in relatively troublesome plugging and separation.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A quick connector includes a first connecting cylinder. An outer wall of the first connecting cylinder is fixedly connected with a female plug. A ball is rotatably connected inside the female plug. A first spring is slidably connected to an outer wall of the female plug. A positioning sleeve is slidably connected to an outer wall of the first spring. An inner wall of the positioning sleeve is slidably connected to an outer wall of the first connecting cylinder. A male plug is slidably connected to an inner wall of the female plug. A limiting groove is formed inside the male plug. A second connecting cylinder is fixedly connected to an outer wall of the male plug. A joint body is fixedly connected to an outer wall of the second connecting cylinder. A connecting component is arranged on an outer wall of the first connecting cylinder, and the connecting component is used to assist in connecting the first connecting cylinder.

[0006] Preferably, the connecting component includes a connecting block. An outer wall of the connecting block is fixedly connected to an outer wall of the first connecting cylinder. A threaded cylinder is fixedly connected to an outer wall of the connecting block. A sliding groove is formed on an outer wall of the male plug. A positioning block is fixedly connected to an outer wall of the second connecting cylinder. A positioning block is slidably connected to an outer wall of the positioning block.

[0007] Preferably, an inner wall of the positioning sleeve is slidably connected to an outer wall of the female plug, and an inner wall of the positioning sleeve is slidably connected to an outer wall of the ball.

[0008] Preferably, an outer wall of the first spring is fixedly connected to an outer wall of the first connecting cylinder, and an outer wall of the ball is slidably connected to an inner wall of the limiting groove.

[0009] Preferably, the outer wall of the ball is slidably connected to the inner wall of the chute, and the outer wall of the positioning block is slidably connected to the inner wall of the positioning sleeve.

[0010] Preferably, the outer wall of the alignment block is fixedly connected to the inner wall of the positioning sleeve, and the outer wall of the alignment block is slidably connected to the outer wall of the ball.

[0011] Preferably, a limiting cylinder is fixedly connected inside the first connecting cylinder, and a limiting ring is fixedly connected to the inner wall of the limiting cylinder.

[0012] Preferably, a limiting block is slidably connected inside the limiting ring, and a connecting piece is fixedly connected to the bottom end of the limiting block.

[0013] Preferably, a second spring is fixedly connected to the lower surface of the second connecting cylinder, and the outer wall of the second spring is slidably connected to the inner wall of the limiting cylinder.

[0014] Preferably, the outer wall of the limiting ring is in contact with the outer wall of the connecting piece, and the outer wall of the limiting block is slidably connected to the outer wall of the positioning sleeve.

[0015] Working principle: When the joint needs to be used, after inserting the male plug into the female plug, the ball will be clamped in the limiting groove on the male plug. When wanting to separate the two, by moving the positioning sleeve on the female plug, at this time, the first spring will be squeezed and contracted by the sliding of the positioning sleeve, so that the ball on the female plug is no longer abutted by the positioning sleeve, and thus can move in a direction away from the axis of the female plug, making the ball no longer completely abut against the limiting groove on the male plug, and separating the male plug from the limiting groove.

[0016] When docking the female plug and the male plug, the positioning block can be driven by the second connecting cylinder to insert into the alignment block in the positioning sleeve. Under the limitation of the alignment block, the female plug and the male plug can be docked more accurately, and at the same time, relative rotation between the female plug and the male plug after connection can be prevented. A chute is also provided on the outer wall of the male plug. Under the action of the chute, the stability of the ball during radial movement can be ensured, and the ball is prevented from being stuck or offset.

[0017] After the female plug and the male plug are docked, under the elastic force of the second spring and the limitation of the limiting ring in the limiting cylinder, the limiting block has a certain blocking effect on the positioning sleeve, and thus the positioning sleeve can be limited and fixed to prevent accidental unlocking, improving safety.

[0018] The connector achieves the effect of being operable with one hand, making it more convenient for users to use the quick connector. At the same time, in scenarios with limited space or where one-handed operation is required, the one-handed operable quick connector can significantly improve work efficiency and safety, achieving the effect of improving connection reliability, and further achieving the effect of improving operation smoothness. Furthermore, it reduces wear and damage of the connector during use, extends the service life of the connector, and also achieves the effect of making the connection more stable. Moreover, it ensures that the positioning sleeve will not accidentally slide when in the locked position, avoiding accidental separation in the connected state, which is particularly important for high-risk scenarios such as high-altitude operations and mechanical equipment, and can prevent safety accidents caused by accidental separation of the connector.

[0019] The present invention provides a quick connector, which has the following beneficial effects: 1. In the present invention, after the male plug is inserted into the female plug, the ball will be clamped in the limit groove on the male plug. By moving the positioning sleeve on the female plug to squeeze the first spring, the ball on the female plug can no longer be abutted by the positioning sleeve, and then the male plug is separated from the limit groove, thus achieving the effect of being operable with one hand.

[0020] 2. In the present invention, when the female plug and the male plug are docked, at this time, the second cylinder can drive the positioning block to insert into the alignment block in the positioning sleeve, so that the female plug and the male plug can be docked more accurately. At the same time, under the action of the chute, the stability of the ball during radial movement can be ensured, achieving the effect of improving connection reliability.

[0021] 3. In the present invention, under the elastic force of the second spring and the limitation of the limiting ring in the limiting cylinder, the limiting block has a certain blocking effect on the positioning sleeve, and then the positioning sleeve can be limited and fixed to prevent accidental unlocking, improving safety, achieving the effect of making the connection more stable, and avoiding accidental separation in the connected state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view of the present invention; Figure 2 is a schematic diagram of the threaded cylinder of the present invention; Figure 3 is a schematic diagram of the first cylinder of the present invention; Figure 4 is a schematic diagram of the connector of the present invention; Figure 5 is a schematic diagram of the positioning sleeve of the present invention; Figure 6 is a schematic diagram of the alignment block of the present invention; Figure 7 is a schematic diagram of the positioning block of the present invention; Figure 8 is a schematic diagram of the second spring of the present invention.

[0023] Among them, 1. The first adapter tube; 2. The female plug; 3. The ball; 4. The first spring; 5. The positioning sleeve; 6. The male plug; 7. The limiting groove; 8. The second adapter tube; 9. The joint body; 10. The connecting block; 11. The threaded tube; 12. The chute; 13. The positioning block; 14. The alignment block; 15. The limiting tube; 16. The limiting ring; 17. The limiting block; 18. The connecting piece; 19. The second spring. Specific embodiments

[0024] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to the attached Figure 1 - attached Figure 7 , an embodiment of the present invention provides a quick connector, including a first adapter tube 1. The outer wall of the first adapter tube 1 is fixedly connected with a female plug 2. The inside of the female plug 2 is rotatably connected with a ball 3. The outer wall of the female plug 2 is slidably connected with a first spring 4. The outer wall of the first spring 4 is slidably connected with a positioning sleeve 5. The inner wall of the positioning sleeve 5 is slidably connected to the outer wall of the first adapter tube 1. The inner wall of the female plug 2 is slidably connected with a male plug 6. A limiting groove 7 is provided inside the male plug 6. The outer wall of the male plug 6 is fixedly connected with a second adapter tube 8. The outer wall of the second adapter tube 8 is fixedly connected with a joint body 9. A connecting component is provided on the outer wall of the first adapter tube 1, and the connecting component is used to assist in connecting the first adapter tube 1.

[0026] Specifically, after inserting the male plug 6 into the female plug 2, the ball 3 will be clamped in the limiting groove 7 on the male plug 6. The limiting groove 7 plays a role in limiting the ball 3. The ball 3 can rotate in the female plug 2 but will not fall out of the female plug 2. When separating the two, just move the positioning sleeve 5 on the female plug 2. At this time, the sliding of the positioning sleeve 5 squeezes the first spring 4 to contract. Under the elastic force of the first spring 4, the positioning sleeve 5 can be better limited, so that the ball 3 on the female plug 2 is no longer abutted by the positioning sleeve 5. By moving in a direction away from the axis of the female plug 2, the ball 3 will no longer be completely abutted in the limiting groove 7 on the male plug 6, so that the male plug 6 can be separated from the limiting groove 7, achieving the effect of single-handed operation.

[0027] Please refer to the attached Figure 2 , attached Figure 4 and attached Figure 6, the connecting component includes a connecting block 10, the outer wall of the connecting block 10 is fixedly connected to the outer wall of the first connecting cylinder 1, a threaded cylinder 11 is fixedly connected to the outer wall of the connecting block 10, a sliding groove 12 is formed in the outer wall of the male plug 6, a positioning block 13 is fixedly connected to the outer wall of the second connecting cylinder 8, and a positioning block 14 is slidably connected to the outer wall of the positioning block 13.

[0028] Specifically, the connecting block 10 plays a role in connecting and limiting the first connecting cylinder 1 and the threaded cylinder 11. The connecting block 10 is an octagonal block, which can assist the threaded cylinder 11 to be docked with other connectors. The positioning block 14 plays a role in limiting the positioning block 13, which can make the female plug 2 and the male plug 6 be docked more accurately. At the same time, it also plays a role in preventing relative rotation between the female plug 2 and the male plug 6 after connection.

[0029] Please refer to the appendix Figure 5 and the appendix Figure 6 , the inner part of the positioning sleeve 5 is slidably connected to the outer wall of the female plug 2, and the inner wall of the positioning sleeve 5 is slidably connected to the outer wall of the ball 3.

[0030] Specifically, the female plug 2 plays a role in supporting and limiting the positioning sleeve 5. By limiting and extruding the ball 3 through the positioning sleeve 5, the stability of the connection between the female plug 2 and the male plug 6 is ensured.

[0031] Please refer to the appendix Figure 6 and the appendix Figure 7 , the outer wall of the first spring 4 is fixedly connected to the outer wall of the first connecting cylinder 1, and the outer wall of the ball 3 is slidably connected to the inner wall of the limiting groove 7.

[0032] Specifically, the first connecting cylinder 1 plays a role in supporting, fixing and limiting the first spring 4, and the limiting groove 7 plays a role in limiting the ball 3, so as to connect the female plug 2 and the male plug 6.

[0033] Please refer to the appendix Figure 4 - appendix Figure 7 , the outer wall of the ball 3 is slidably connected to the inner wall of the sliding groove 12, and the outer wall of the positioning block 13 is slidably connected to the inner wall of the positioning sleeve 5.

[0034] Specifically, the sliding groove 12 plays a role in ensuring the stability of the ball 3 during radial movement, and the positioning sleeve 5 plays a role in supporting and limiting the positioning block 13, so as to assist the docking of the female plug 2 and the male plug 6.

[0035] Please refer to the appendix Figure 5 - appendix Figure 7 , the outer wall of the positioning block 14 is fixedly connected to the inner wall of the positioning sleeve 5, and the outer wall of the positioning block 14 is slidably connected to the outer wall of the ball 3.

[0036] Specifically, the positioning sleeve 5 functions to fix and limit the alignment block 14, and at the same time, the alignment block 14 also functions to assist in limiting the ball 3. When separating the female plug 2 and the male plug 6, the alignment block 14 can squeeze the ball 3.

[0037] Please refer to the appendix Figure 4 and the appendix Figure 8 , inside the first connecting cylinder 1, a limiting cylinder 15 is fixedly connected, and a limiting ring 16 is fixedly connected to the inner wall of the limiting cylinder 15.

[0038] Specifically, the first connecting cylinder 1 functions to support and fix the limiting cylinder 15, and the limiting cylinder 15 functions to support and fix the limiting ring 16, thereby making the limiting ring 16 fixed more stably.

[0039] Please refer to the appendix Figure 8 , a limiting block 17 is slidably connected inside the limiting ring 16, and a connecting piece 18 is fixedly connected to the bottom end of the limiting block 17.

[0040] Specifically, the limiting ring 16 functions to support the limiting block 17, thereby making the limiting block 17 more stable and smooth during the sliding process. The connecting piece 18 functions to assist in supporting the limiting block 17 and can effectively prevent the limiting block 17 from shifting during the sliding process.

[0041] Please refer to the appendix Figure 8 , a second spring 19 is fixedly connected to the lower surface of the second connecting cylinder 8, and the outer wall of the second spring 19 is slidably connected to the inner wall of the limiting cylinder 15.

[0042] Specifically, under the elastic force of the second spring 19, the limiting block 17 can be assisted in being fixed, increasing the stability of the limiting block 17.

[0043] Please refer to the appendix Figure 2 and the appendix Figure 8 , the outer wall of the limiting ring 16 is in contact with the outer wall of the connecting piece 18, and the outer wall of the limiting block 17 is slidably connected to the outer wall of the positioning sleeve 5.

[0044] Specifically, under the elastic force of the second spring 19, the limiting block 17 has a certain blocking effect on the positioning sleeve 5, thereby limiting and fixing the positioning sleeve 5 to prevent accidental unlocking and improving safety.

[0045] The experimental methods used below are all conventional methods unless otherwise specified. The materials, reagents, methods, and instruments used, unless otherwise specified, are all conventional materials, reagents, methods, and instruments in this field, and those skilled in the art can obtain them through commercial channels or prepare them according to the literature methods.

[0046] Example 1: Please refer to the appendix Figure 1 - appendix Figure 7, when using this connector, first insert the male plug 6 into the female plug 2. After that, the ball 3 will be clamped in the limit groove 7 on the male plug 6. When wanting to separate the two, by moving the positioning sleeve 5 on the female plug 2, at this time, the first spring 4 will be squeezed and contracted through the sliding of the positioning sleeve 5, so that the ball 3 on the female plug 2 is no longer abutted by the positioning sleeve 5, and thus can move in a direction away from the axis of the female plug 2, making the ball 3 no longer completely abut against the limit groove 7 on the male plug 6, separating the male plug 6 from the limit groove 7, and thus achieving the effect of being able to be operated with one hand, making it more convenient for users to use the quick connector. Especially in scenarios where frequent connection and separation are required, users can complete the connection or separation operation while holding the rod with one hand without putting down other items in their hands. At the same time, in scenarios with limited space or where one-handed operation is required, the one-handed operation quick connector can significantly improve work efficiency and safety.

[0047] Embodiment 2: Please refer to the attached Figure 2 - attached Figure 8 , when docking the female plug 2 and the male plug 6, the second cylinder 8 can drive the positioning block 13 to insert into the alignment block 14 in the positioning sleeve 5. Under the limitation of the alignment block 14, the female plug 2 and the male plug 6 can be docked more accurately, and at the same time, relative rotation between the female plug 2 and the male plug 6 after connection is also prevented, achieving the effect of improving connection reliability. A sliding groove 12 is also provided on the outer wall of the male plug 6. Under the action of the sliding groove 12, the stability of the ball 3 during radial movement can be ensured, avoiding the ball 3 from being stuck or offset, and thus achieving the effect of improving operation smoothness, further reducing wear and damage of the connector during use, and extending the service life of the connector.

[0048] After the female plug 2 and the male plug 6 are docked, under the elastic force of the second spring 19 and at the same time under the limitation of the limiting ring 16 in the limiting cylinder 15, the limiting block 17 has a certain blocking effect on the positioning sleeve 5, and thus the positioning sleeve 5 can be limited and fixed to prevent accidental unlocking, improving safety and achieving the effect of making the connection more stable. Further ensuring that the positioning sleeve 5 will not accidentally slide when in the locked position, avoiding accidental separation in the connected state, which is particularly important for high-risk scenarios such as high-altitude operations and mechanical equipment, and can prevent safety accidents caused by accidental separation of the connector.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick connector, comprising a first connector (1), characterized in that: The outer wall of the first connecting tube (1) is fixedly connected to a female plug (2), the interior of the female plug (2) is rotatably connected to a ball (3), the outer wall of the female plug (2) is slidably connected to a first spring (4), the outer wall of the first spring (4) is slidably connected to a positioning sleeve (5), the inner wall of the positioning sleeve (5) is slidably connected to the outer wall of the first connecting tube (1), the inner wall of the female plug (2) is slidably connected to a male plug (6), a limiting groove (7) is provided inside the male plug (6), the outer wall of the male plug (6) is fixedly connected to a second connecting tube (8), the outer wall of the second connecting tube (8) is fixedly connected to a joint body (9), and the outer wall of the first connecting tube (1) is provided with a connecting assembly, the connecting assembly is used to assist in connecting the first connecting tube (1).

2. A quick connector according to claim 1, characterized in that: The connection assembly comprises a connection block (10), the outer wall of the connection block (10) being fixedly connected to the outer wall of the first connecting tube (1), the outer wall of the connection block (10) being fixedly connected to a threaded tube (11), the outer wall of the male plug (6) being provided with a sliding groove (12), the outer wall of the second connecting tube (8) being fixedly connected to a positioning block (13), and the outer wall of the positioning block (13) being slidably connected to a positioning block (14).

3. A quick connector according to claim 1, characterized in that: The interior of the positioning sleeve (5) is slidably connected to the outer wall of the female plug (2), and the inner wall of the positioning sleeve (5) is slidably connected to the outer wall of the ball (3).

4. A quick connector according to claim 1, characterized in that: The outer wall of the first spring (4) is fixedly connected to the outer wall of the first connecting tube (1), and the outer wall of the ball (3) is slidably connected to the inner wall of the limiting groove (7).

5. A quick connector according to claim 2, characterized in that: The outer wall of the ball (3) is slidably connected to the inner wall of the slide groove (12), and the outer wall of the positioning block (13) is slidably connected to the inner wall of the positioning sleeve (5).

6. A quick connector according to claim 2, characterized in that: The outer wall of the alignment block (14) is fixedly connected to the inner wall of the positioning sleeve (5), and the outer wall of the alignment block (14) is slidably connected to the outer wall of the ball (3).

7. A quick connector according to claim 4, characterized in that: The interior of the first connecting tube (1) is fixedly connected to a limiting tube (15), and the inner wall of the limiting tube (15) is fixedly connected to a limiting ring (16).

8. A quick connector according to claim 7, characterized in that: The interior of the limiting ring (16) is slidably connected to a limiting block (17), and the bottom end of the limiting block (17) is fixedly connected to a connecting piece (18).

9. A quick connector according to claim 8, characterized in that: A second spring (19) is fixedly connected to the lower surface of the second connecting tube (8), and the outer wall of the second spring (19) is slidably connected to the inner wall of the limiting tube (15).

10. A quick connector according to claim 9, characterized in that: The outer wall of the limiting ring (16) fits the outer wall of the connecting piece (18), and the outer wall of the limiting block (17) is slidably connected to the outer wall of the positioning sleeve (5).

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