Quick plug connector

Abstract

The utility model discloses a quick connector, which belongs to the technical field of connectors, and is characterized in that the quick connector comprises a connector main body, an annular reed, a sealing ring and a quick button, the annular reed and the sealing ring are arranged in the connector main body, the quick button is inserted into the connector main body, the outer side wall of the quick button is provided with a lug boss, and the lug boss is arranged on the outer side wall of the quick button. A limiting ring is arranged at the end opening of the connector body and used for limiting the protruding part, and a protruding ring part protruding upwards is arranged at the end of the connector body before assembly; after assembling, the convex ring part is bent inwards to form a limiting ring, the quick-plug connector is easy to assemble and operate, the assembling difficulty is reduced, the assembling efficiency can be effectively improved, and the consistency of the product assembling quality can be ensured.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, and specifically relates to a quick-connect connector. Background Technology

[0002] Quick-connect couplings are pipe connection devices designed to simplify pipe connection processes. Their convenience and flexibility have led to their widespread use in pneumatics and many automation fields.

[0003] In the existing technology, as shown in the appendix Figure 4 As shown, the quick-connect connector includes a connector body 1, an annular spring 2, a sealing ring 3, and a quick-connect button 4. The annular spring 2 and sealing ring 3 are both located inside the connector body 1. The quick-connect button 4 is inserted into the connector body 1. An annular protrusion 11 is provided on the outer wall of the quick-connect button 4, and a limiting step 12 is provided on the inner wall of the connector body 1 to limit the annular protrusion 11. The limiting step 12 prevents the quick-connect button 4 from detaching from the connector body 1. However, this quick-connect connector has significant drawbacks during assembly. Because external force is required to precisely insert the quick-connect button 4 into the connector body 1 until the annular protrusion 11 and the limiting step 12 are engaged and limited, during insertion, the annular protrusion 11 and... The large friction between the connector bodies 1 not only makes the insertion process extremely difficult, but also easily damages the quick-connect button 4 and connector bodies 1 due to uneven force, and may even cause deformation. Moreover, due to the need to set the limiting step 12, the inner diameter of the connector body 1 becomes smaller, which makes it very difficult to insert the annular spring 2 into the connector body 1. It is impossible to directly press the annular spring 2 into the connector body 1. Usually, it is necessary to manually deform the annular spring 2 step by step to put it into the connector body. This not only increases the complexity of operation, increases the difficulty of assembly, and reduces the assembly efficiency, but also has high labor costs. Furthermore, the annular spring 2 is prone to damage during manual assembly, and it is impossible to ensure the consistency of product assembly quality. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a quick-connect connector. The technical problem to be solved by this invention is: how to reduce assembly difficulty and improve assembly efficiency.

[0005] The above-mentioned technical objective of this utility model can be achieved through the following technical solution: a quick-connect connector, including a connector body, an annular spring, a sealing ring, and a quick-connect button. The annular spring and the sealing ring are both disposed inside the connector body. The quick-connect button is inserted into the connector body. A protrusion is provided on the outer side wall of the quick-connect button. A limiting ring is provided at the port of the connector body. The limiting ring is used to limit the protrusion. Before assembly, the end of the connector body is provided with an upwardly protruding convex ring. After assembly, the convex ring is bent inward to form the limiting ring.

[0006] In one of the quick-connect connectors described above, the outer contour of the convex ring is frustoconical. During assembly, pressing down the quick-connect button causes the convex ring to bend inward to form the limiting ring.

[0007] In one of the quick-connect fittings described above, the protrusion is adapted to the fitting body.

[0008] In one of the quick-connect fittings described above, the upper surface of the protrusion abuts against the lower surface of the limiting ring.

[0009] In one of the quick-connect connectors described above, there is a gap between the inner wall of the limiting ring and the outer wall of the quick-connect button.

[0010] In one of the quick-connect fittings described above, the fitting body is provided with a receiving groove for accommodating the annular spring.

[0011] In one of the quick-connect connectors described above, the lower surface of the annular spring abuts against the bottom of the receiving groove, and the upper surface of the annular spring abuts against the end of the quick-connect button.

[0012] In one of the quick-connect fittings described above, the fitting body is provided with a receiving groove for accommodating the sealing ring.

[0013] In one of the quick-connect fittings described above, a positioning step for limiting the position of the fitting is provided inside the fitting body.

[0014] In one of the quick-connect connectors described above, the lower surface of the protrusion is inclined.

[0015] In summary, the beneficial effects of this utility model compared to the prior art are as follows:

[0016] 1. During assembly, first insert the sealing ring and the annular spring into the connector body, then insert the quick-connect button into the connector body and press it to bend the convex ring at the end of the connector body to form a limiting ring. The limiting ring limits the convex part, making the assembly operation simple, reducing the assembly difficulty, and making assembly convenient. This can effectively improve the assembly efficiency and ensure the consistency of product assembly quality.

[0017] 2. The outer wall of the quick-connect button is provided with a protrusion that fits into the connector body. This can effectively ensure the stability of the quick-connect button within the connector body, thereby avoiding the impact on the service life of the ring spring due to factors such as instability of the quick-connect button or movement under force.

[0018] 3. Compared to traditional quick-connect buttons that rely on external force to press and create a limiting step and annular protrusion for locking, resulting in weaker pressure resistance, this quick-connect connector's quick-connect button is directly inserted into the connector body and pressed, causing the protruding ring at the connector body's port to bend and form a limiting ring. This limiting ring then restricts the protrusion, resulting in stronger pressure resistance. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of an embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of an embodiment;

[0021] Figure 3 This is a diagram showing the state of the connector body where the convex ring is not bent to form a limiting ring;

[0022] Figure 4 This is a schematic diagram of the background technology structure.

[0023] Reference numerals in the attached drawings: 1. Connector body; 2. Annular spring; 3. Sealing ring; 4. Quick-connect button; 5. Protrusion; 6. Limiting ring; 7. Gap; 8. Receiving groove one; 9. Receiving groove two; 10. Positioning step; 11. Annular protrusion; 12. Limiting step; 13. Protruding ring; 14. Gap. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] A quick-connect connector, such as Figures 1 to 3 As shown, it includes a connector body 1, an annular spring 2, a sealing ring 3, and a quick-connect button 4, which is inserted into the connector body 1.

[0026] The quick-connect button 4 has a protrusion 5 on its outer wall. The quick-connect button 4 and the protrusion 5 are assembled together. The port of the connector body 1 is provided with a limiting ring 6. In this embodiment, before assembly, the end of the connector body 1 is provided with an upwardly protruding ring 13. After assembly, the protruding ring 13 is bent inward to form the limiting ring 6. Regarding how the protruding ring 13 is bent inward to form the limiting ring 6, it should be noted that the outer contour of the protruding ring 13 is frustum-shaped, that is, the outer wall of the protruding ring 13 is inclined from top to bottom and from inside to outside. When the protruding ring 13 is subjected to force from top to bottom, it is easy to bend inward to form the limiting ring 6. During the assembly process, when the quick-connect button 4 is inserted into the connector body 1, the quick-connect button 4 squeezes the protruding ring 13, thereby causing the protruding ring 13 to bend inward to form the limiting ring 6. As another option, the protruding ring 13 can also be spun inward to form the limiting ring 6 or directly extend inward at the port of the connector body 1 to form the limiting ring 6.

[0027] The limiting ring 6 is used to limit the protrusion 5. The upper surface of the protrusion 5 abuts against the lower surface of the limiting ring 6. By limiting the protrusion 5 with the limiting ring 6, the quick-connect button 4 is prevented from detaching from the connector body 1, thus ensuring the stability and reliability of the overall structure.

[0028] It needs to be further explained that before assembly, the end of the connector body 1 is provided with an upward protruding ring 13. When the quick-connect button 4 is inserted into the connector body 1, the protruding ring 13 will not collide or block the quick-connect button 4, thus avoiding interference between the two.

[0029] The lower surface of the protrusion 5 is inclined. Furthermore, when the quick-connect button 4 is inserted into the connector body 1, the inclined structure can guide the quick-connect button 4, ensuring that the quick-connect button 4 can be smoothly inserted into the connector body 1, reducing assembly resistance and improving assembly efficiency.

[0030] The annular spring 2 is disposed inside the connector body 1. Specifically, the inner sidewall of the connector body 1 is provided with a receiving groove 8 for accommodating the annular spring 2. The lower surface of the annular spring 2 abuts against the bottom of the receiving groove 8, and the upper surface of the annular spring 2 abuts against the end of the quick-connect button 4, thereby effectively ensuring the stability of the annular spring 2.

[0031] In use, the pipe passes through the annular spring 2, and the annular spring 2 clamps the pipe under the action of elasticity, thereby firmly holding the pipe inside the connector body 1.

[0032] The sealing ring 3 is set inside the connector body 1. The connector body 1 is provided with a receiving groove 9 for accommodating the sealing ring 3. By restricting the sealing ring 3 through the sealing groove 9, the stability of the sealing ring 3 can be effectively guaranteed, thereby ensuring that the sealing ring 3 forms an effective seal on the pipe fitting.

[0033] It should be noted that in the current technology of quick-connect connectors, there is a large gap 14 between the outer wall of the quick-connect button 4 and the inner wall of the connector body 1. This makes it difficult to guarantee the stability of the quick-connect button 4 within the connector body 1. In this embodiment, by providing a protrusion 5 on the outer wall of the quick-connect button 4 and a limiting ring 6 at the port of the connector body 1, the protrusion 5 is adapted to the connector body 1, and there is only a small gap between the protrusion 5 and the connector body 1. This can effectively guarantee the stability of the quick-connect button 4 within the connector body 1, thereby avoiding the impact on the service life of the annular spring 2 due to factors such as instability of the quick-connect button 4 and force movement.

[0034] The connector body 1 is provided with a positioning step 10 for limiting the pipe fitting. The positioning step 10 restricts the pipe fitting, thereby further improving the stability of the pipe fitting.

[0035] There is a gap 7 between the inner wall of the limiting ring 6 and the outer wall of the quick-connect button 4, so as to prevent the limiting ring 6 and the quick-connect button 4 from directly contacting each other and causing wear when the quick-connect button 4 moves relative to the connector body 1.

[0036] During assembly, first place the sealing ring 3 into the receiving groove 2 9, then place the annular spring 2 into the receiving groove 1 8, and finally insert the quick-connect button 4 into the connector body 1. At the same time, the quick-connect button 4 presses the convex ring 13 to bend it and form the limiting ring 6.

[0037] It should be noted that in the existing technology, because a limiting step 12 needs to be set inside the connector body 1, and an annular protrusion 11 is provided on the outer wall of the quick-connect button 4, the quick-connect button 4 is pressed into the connector body 1 by external equipment, so that the limiting step 12 and the annular protrusion 11 interlock to form a limiting position. Therefore, there will be a large gap 14 between the outer wall of the quick-connect button 4 and the inner wall of the connector body 1. More importantly, after setting the limiting step 12 inside the connector body 1, the inner diameter of the connector body 1 is directly reduced, which makes it very difficult to install the annular spring 2 into the connector body 1. It is not possible to directly press the annular spring 2 into the connector body 1. Usually, it is necessary to manually deform the annular spring 2 step by step to put it into the connector body 1. However, in this embodiment, since there is no need to set the limiting step 12 inside the connector body 1, the inner diameter of the connector body 1 is larger than that of the prior art. Therefore, the annular spring 2 can be directly pressed into the connector body 1. The operation is simple and can effectively reduce the assembly difficulty. In actual production, due to the simplification of the assembly operation, the assembly action can be completed automatically by mechanized equipment to realize the assembly of quick-connect connectors, thereby effectively improving production efficiency.

[0038] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model; those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A quick-connect connector, comprising a connector body (1), an annular spring (2), a sealing ring (3), and a quick-connect button (4), wherein the annular spring (2) and the sealing ring (3) are both disposed within the connector body (1), and the quick-connect button (4) is inserted into the connector body (1), characterized in that: The quick-connect button (4) has a protrusion (5) on its outer side wall, and the connector body (1) has a limiting ring (6) at its port. The limiting ring (6) is used to limit the protrusion (5). Before assembly, the end of the connector body (1) has an upward protruding ring (13). After assembly, the protruding ring (13) is bent inward to form the limiting ring (6).

2. A quick-connect connector according to claim 1, characterized in that: The outer contour of the convex ring (13) is frustoconical. During assembly, the quick-connect button (4) is pressed down to make the convex ring (13) bend inward to form the limiting ring (6).

3. A quick-connect coupling according to any one of claims 1 or 2, characterized in that: The protrusion (5) is adapted to the connector body (1).

4. A quick-connect connector according to claim 1, characterized in that: The upper surface of the protrusion (5) abuts against the lower surface of the limiting ring (6).

5. A quick-connect connector according to claim 1, characterized in that: There is a gap (7) between the inner wall of the limiting ring (6) and the outer wall of the quick-connect button (4).

6. A quick-connect coupling according to any one of claims 1, 2, 4, or 5, characterized in that: The connector body (1) is provided with a receiving groove (8) for accommodating the annular spring (2).

7. A quick-connect connector according to claim 6, characterized in that: The lower surface of the annular spring (2) abuts against the bottom of the receiving groove (8), and the upper surface of the annular spring (2) abuts against the end of the quick-connect button (4).

8. A quick-connect coupling according to any one of claims 1, 2, 4, or 5, characterized in that: The connector body (1) is provided with a receiving groove (9) for accommodating the sealing ring (3).

9. A quick-connect coupling according to any one of claims 1, 2, 4, or 5, characterized in that: The connector body (1) is provided with a positioning step (10) for limiting the position of the pipe fitting.

10. A quick-connect connector according to any one of claims 1, 2, 4, or 5, characterized in that: The lower surface of the protrusion (5) is inclined.

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