Quick connector

Abstract

The utility model discloses a quick connector, which relates to the field of pipeline connecting pieces, and comprises a first sleeve, a second sleeve, a third sleeve and a fourth sleeve, the clamping spring is arranged in the first clamping groove; the sealing ring is arranged at the first connecting end in a sleeving manner; the second sleeve is provided with a connecting hole, and a second clamping groove is formed in the inner wall of the connecting hole; wherein the first connecting end is inserted into the connecting hole, the first clamping groove is right opposite to the second clamping groove, the clamping spring is connected with the second clamping groove in a clamping mode, and the sealing ring is matched with the inner wall of the connecting hole in a sealing mode. According to the technical scheme provided by the utility model, the structure of the quick connector is simplified, and the connection reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connector technology, and in particular to a quick connector. Background Technology

[0002] Currently, the rotary sealing connection devices for bent quick-connect couplings mainly adopt riveting and threaded rotary connection methods. Both methods have significant drawbacks: riveting connections require high-pressure resistant materials, increasing material costs, and are prone to loosening, resulting in a short service life. Furthermore, specialized riveting equipment is required during production, reducing efficiency. Threaded rotary connections also require high-strength materials to prevent loosening, increasing costs, and can gradually loosen under long-term vibration or lateral slippage, affecting connection reliability. Utility Model Content

[0003] The main objective of this invention is to provide a quick connector that simplifies the structure of the quick connector and improves the reliability of the connection.

[0004] To achieve the above objectives, this utility model proposes a quick connector, comprising:

[0005] The first sleeve has a first connecting end, and the first connecting end is provided with a first slot;

[0006] A retaining ring is located in the first retaining groove;

[0007] A sealing ring is fitted onto the first connecting end;

[0008] The second sleeve is provided with a connecting hole, and the inner wall of the connecting hole is provided with a second slot;

[0009] The first connecting end is inserted into the connecting hole, and the first slot and the second slot are directly opposite each other. The snap ring engages with the second slot, and the sealing ring is sealed to the inner wall of the connecting hole.

[0010] In one embodiment, the first connecting end is further provided with a third slot, and the sealing ring is disposed in the third slot.

[0011] In one embodiment, a step is formed inside the connecting hole, and a limiting part is provided on the outer peripheral wall of the first connecting end. The limiting part abuts against the step to limit the depth of the first connecting end inserted into the connecting hole.

[0012] In one embodiment, the retaining ring is configured as a type A resilient retaining ring for the hole.

[0013] In one embodiment, a guide slope is provided at the periphery of the end of the first connecting end.

[0014] In one embodiment, the first sleeve has a second connecting end opposite to the first connecting end, and the second connecting end is provided with a connecting structure for connecting to the air tube.

[0015] In one embodiment, the connection structure includes:

[0016] A sealing element is disposed within the second connection end, the sealing element being used to fasten and seal the pipe;

[0017] A fastener is provided at the second connecting end and extends into the interior of the second connecting end and abuts against the claw member;

[0018] A clamping element is disposed within the second connecting end, and the clamping element is used to engage with the pipe.

[0019] In this utility model's technical solution, the quick connector includes a first sleeve with a first connecting end. A first groove is provided on the outer peripheral wall of the first connecting end, and a retaining spring is fitted inside the first groove. Additionally, a sealing ring is fitted on the first connecting end. The quick connector also includes a second sleeve with a connecting hole. A second groove is provided on the inner wall of the first connecting hole. The first connecting end can be inserted into the connecting hole, at which point the first groove and the second groove are aligned. The retaining spring can be engaged in the second groove. The retaining spring, the first groove, and the second groove all cooperate to limit the movement, preventing the first sleeve from separating from the second sleeve. Furthermore, the sealing ring forms a sealing fit with the inner wall of the connecting hole, achieving a sealed connection between the first sleeve and the second sleeve. In the above solution, the connection between the first sleeve and the second sleeve only requires two components: a retaining spring and a sealing ring. The addition of a first groove and a second groove for use with the retaining spring is sufficient to achieve the connection between the first sleeve and the second sleeve. The structure is simple, and the limiting effect of the retaining spring ensures the reliability of the connection between the first sleeve and the second sleeve. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A structural schematic diagram of the quick connector is provided for this utility model;

[0022] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0023] Explanation of icon numbers:

[0024] 10. Pipe; 100. First sleeve; 110. First slot; 120. Third slot; 130. Limiting part; 140. Guide slope; 200. Snap ring; 300. Sealing ring; 400. Second sleeve; 410. Second slot; 420. Step; 500. Seal; 600. Fastener; 700. Claw.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] To simplify the structure of quick-connect couplings and improve the reliability of coupling connections, this technical solution proposes a quick-connect coupling, comprising:

[0030] The first sleeve 100 has a first connecting end, and the first connecting end is provided with a first slot 110;

[0031] A retaining ring 200 is located in the first retaining groove 110;

[0032] A 300 sealing ring is fitted onto the first connecting end;

[0033] The second sleeve 400 is provided with a connection hole, and the inner wall of the connection hole is provided with a second groove 410;

[0034] The first connecting end is inserted into the connecting hole, and the first slot 110 and the second slot 410 are directly opposite each other. The snap ring 200 is engaged with the second slot 410, and the sealing ring 300 is sealed to the inner wall of the connecting hole.

[0035] In this utility model, the quick connector includes a first sleeve 100, a first connecting end on the first sleeve 100, a first groove 110 on the outer peripheral wall of the first connecting end, a retaining spring 200 sleeved in the first groove 110, and a sealing ring 300 sleeved on the first connecting end. The quick connector also includes a second sleeve 400, a connecting hole on the second sleeve 400, a second groove 410 on the inner wall of the first connecting hole, and the first connecting end can be inserted into the connecting hole. At this time, the first groove 110 and the second groove 410 are aligned, and the retaining spring 200 can be inserted into the second groove 410. At this time, the retaining spring 200, the first groove 110, and the second groove 410 cooperate with each other to limit the movement, preventing the first sleeve 100 from separating from the second sleeve 400. In addition, the sealing ring 300 forms a sealing fit with the inner wall of the connecting hole, realizing a sealed connection between the first sleeve 100 and the second sleeve 400. In the above scheme, the connection between the first sleeve 100 and the second sleeve 400 only requires two components: a retaining ring 200 and a sealing ring 300. In addition, a first retaining groove 110 and a second retaining groove 410 that are used in conjunction with the retaining ring 200 are provided to realize the connection between the first sleeve 100 and the second sleeve 400. The structure is simple and the limiting function of the retaining ring 200 also ensures the reliability of the connection between the first sleeve 100 and the second sleeve 400.

[0036] like Figures 1 to 2In one embodiment of this utility model, the quick connector is used for connecting the air circuit of the device. The first sleeve 100 is used to connect the air inlet or outlet pipe. The first sleeve 100 can be L-shaped, with a hollow interior forming a channel for airflow. One end of the first sleeve 100 has a first connecting end for connecting to the second sleeve 400. In this solution, the second sleeve 400 can be a cover, placed at the air circuit interface of the device. The second sleeve 400 constitutes part of the device's air circuit. The interior of the second sleeve 400 forms a channel for airflow, and a connecting hole is formed at one end of the channel. The first connecting end is inserted into the connecting hole. To achieve a seal, a sealing ring 300 can be fitted onto the outer peripheral wall of the first connecting end. The sealing ring 300 can be a commercially available O-ring. The sealing ring 300 and the outer peripheral wall of the first connecting end form a sealing fit. After the first connecting end is inserted into the connecting hole, the sealing ring 300 also forms a sealing fit with the inner wall of the connecting hole, realizing the sealed connection between the first sleeve 100 and the second sleeve 400. In addition, a first slot 110 is provided at the first connecting end, and a retaining spring 200 is sleeved in the first slot 110. The retaining spring 200 is generally annular. A second slot 410 is provided in the connecting hole, which is directly opposite to the position of the first slot 110. During the process of the first connecting end being inserted into the connecting hole, the retaining spring 200 will first be compressed and deformed by the inner wall of the connecting hole. When it reaches the position of the second slot 410, the retaining spring 200 will recover its deformation, and the outer wall of the retaining spring 200 will abut against the bottom of the slot of the second slot 410. In addition, the retaining spring 200 is also partially accommodated in the first slot 110. At this time, the retaining spring 200 limits the first connecting end, and the retaining spring 200 pulls the idle first connecting end out of the connecting hole, realizing the connection between the first sleeve 100 and the second sleeve 400. In this design, unless the retaining ring 200 is deformed or damaged, the first connecting end cannot be pulled out of the connecting hole, thus improving the reliability of the connection. Furthermore, the connection between the first sleeve 100 and the second sleeve 400 only requires the retaining ring 200 and the sealing ring 300, along with the mating first retaining groove 110 and the second retaining groove 410, to achieve a sealed connection. This simplifies the structure of the quick connector and also helps reduce production costs. In another embodiment of this invention, the retaining ring 200 is configured as a type A elastic retaining ring for holes. This type of retaining ring 200 has a rectangular cross-section, allowing it to fit snugly against the sidewalls of the first retaining groove 110 and the second retaining groove 410, improving the reliability of the retaining ring 200's positioning. Simultaneously, it reduces the localized stress on the retaining ring 200, extending its service life.

[0037] like Figure 2In one embodiment of this utility model, the first connecting end is further provided with a third slot 120, and the sealing ring 300 is disposed in the third slot 120. The third slot 120 is disposed on the side of the first slot 110 near the second sleeve 400. The sealing ring 300 is embedded in the third slot 120. The limiting effect of the third slot 120 can prevent the sealing ring 300 from shifting during assembly and use, thus ensuring the reliability of the seal.

[0038] like Figure 2 In one embodiment of this utility model, a step 420 is formed inside the connecting hole, and a limiting part 130 is provided on the outer peripheral wall of the first connecting end. The limiting part 130 abuts against the step 420 to limit the depth of the first connecting end inserted into the connecting hole. By cooperating with the step 420 and the limiting part 130, the depth of the first connecting end inserted into the connecting hole can be limited, which facilitates assembly. At the same time, it also provides support for the snap ring 200, reduces the force borne by the snap ring 200 in the insertion direction, and improves the reliability of the connection.

[0039] like Figure 2 In one embodiment of this utility model, a guide slope 140 is provided around the end of the first connecting end. The guide slope 140 provides guidance when the first connecting end is inserted into the connecting hole, facilitating the insertion of the first connecting end.

[0040] like Figure 1 In one embodiment of this utility model, the first sleeve 100 has a second connecting end opposite to the first connecting end, and the second connecting end is provided with a connecting structure for connecting to an air tube. The connecting structure can be any type of interface commonly available on the market, and providing the connecting structure facilitates the connection between the quick connector and the air tube. Figure 1 The diagram illustrates one form of the connection structure. In this embodiment, the connection structure includes: a sealing member 500 disposed within the second connection end, the sealing member 500 being used to fasten and seal the pipe 10; a fastener 600 disposed within the second connection end and extending into the second connection end and abutting against the claw member 700; and a claw member 700 disposed within the second connection end, the claw member 700 being used to engage with the pipe 10. During assembly, the seal 500, the claw 700, and the fastener 600 are sequentially inserted. In use, the pipe 10 is inserted starting from the fastener 600, passing through the claw 700, and finally the end of the pipe 10 abuts against the seal 500. During the insertion of the pipe 10, the claw 700 will deform and tilt, contacting the outer wall of the pipe 10. The claw 700 is tilted towards the seal 500, so that the pipe 10 can only move forward and cannot move backward, ensuring that the pipe 10 and the seal 500 maintain a sealed fit. When it is necessary to disassemble the pipe 10, press the fastener 600, and the fastener 600 will abut against the claw 700, causing it to continue to deform and detach from the outer wall of the pipe 10. At this time, the pipe 10 can be pulled out.

[0041] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A quick connector, characterized in that, include: The first sleeve has a first connecting end, and the first connecting end is provided with a first slot; A retaining ring is located in the first retaining groove; A sealing ring is fitted onto the first connecting end; The second sleeve is provided with a connecting hole, and the inner wall of the connecting hole is provided with a second slot; The first connecting end is inserted into the connecting hole, and the first slot and the second slot are directly opposite each other. The snap ring engages with the second slot, and the sealing ring is sealed to the inner wall of the connecting hole.

2. The quick connector as described in claim 1, characterized in that, The first connecting end is also provided with a third slot, and the sealing ring is disposed in the third slot.

3. The quick connector as described in claim 1, characterized in that, A step is formed inside the connecting hole, and a limiting part is provided on the outer peripheral wall of the first connecting end. The limiting part abuts against the step to limit the depth of the first connecting end inserted into the connecting hole.

4. The quick connector as described in claim 1, characterized in that, The retaining ring is configured as a type A elastic retaining ring for holes.

5. The quick connector as described in claim 1, characterized in that, A guide slope is provided on the periphery of the end of the first connecting end.

6. The quick connector as described in claim 1, characterized in that, The first sleeve has a second connecting end opposite to the first connecting end, and the second connecting end is provided with a connecting structure for connecting the air tube.

7. The quick connector as described in claim 6, characterized in that, The connection structure includes: A sealing element is disposed within the second connection end, the sealing element being used to fasten and seal the pipe; A fastener is provided at the second connecting end and extends into the interior of the second connecting end and abuts against the claw member; A clamping element is disposed within the second connecting end, and the clamping element is used to engage with the pipe.

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