A quick connect fitting for a pipe

Abstract

The utility model discloses a kind of pipeline quick plug connectors, including first connecting assembly and second connecting assembly, and quick plug assembly is arranged on the outer wall of the second connecting assembly.The first connecting assembly includes first connecting pipe, the outer wall of the first connecting pipe is opened with annular slide groove, and slidingly installed with sliding ring in annular slide groove, and sliding ring is equipped with the ring of pushing on it, and the outer wall of the first connecting pipe and close to one side position is equipped with fixed ring.The quick plug assembly includes annular fixed shell, the utility model is matched with first connecting assembly, second connecting assembly and quick plug assembly, when installing, push into sealing ring of aligning arc-shaped slot, it can be completed by the help of slope cooperation and spring reset, without complex tool, improve installation convenience and efficiency;When disassembling, push sliding ring to make arc-shaped block disengage limit, can quickly separate component, and operation is labor-saving and efficient;And after installation, through sealing structure and double sealing ring, can improve butt joint sealing property.

Description

Technical Field

[0001] This utility model mainly relates to the field of pipeline connection technology, specifically a quick-connect pipe fitting. Background Technology

[0002] In many fields such as industrial production, building water supply and drainage, automobile manufacturing, medical devices, and smart homes, pipeline systems serve as the core carriers for fluid (liquid and gas) transmission. The reliability, efficiency, and convenience of their connections directly affect the overall system's operating efficiency, maintenance costs, and safety performance. Therefore, pipeline connection technology has always been one of the core technologies of concern to related industries.

[0003] Currently, traditional pipe connection methods mainly include threaded connections, flange connections, welding connections, and clamp connections. Among them, threaded connections require repeated tightening with tools such as wrenches, which is not only cumbersome to operate, but also difficult to operate efficiently in confined installation scenarios. Flange connections require multiple sets of bolts for fixing, and the bolt holes must be precisely aligned during assembly, which is time-consuming and labor-intensive. Subsequent disassembly and maintenance also require disassembling each bolt one by one, resulting in low efficiency. Although some snap-fit ​​connectors simplify the operation, due to structural design limitations, they often have problems such as easy loosening after docking and insufficient sealing performance, which make it difficult to meet the use requirements of high-reliability piping systems, especially in occasions where frequent plugging and unplugging are required and installation efficiency is high. Utility Model Content

[0004] This utility model provides a solution that addresses the problem of overly simplistic existing technical solutions. It offers a significantly different solution, primarily a quick-connect pipe fitting, to solve the problems mentioned in the background section regarding current traditional pipe connection methods. These problems include: threaded connections requiring repeated tightening with tools, leading to inefficiency in confined spaces; flange connections requiring multiple sets of bolts for fixing and disassembly, resulting in difficult and time-consuming alignment; and some snap-fit ​​connectors, while simplifying operation, being prone to loosening and having poor sealing, making it difficult to meet the requirements of high-reliability pipelines.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A quick-connect pipe fitting includes a first connecting component and a second connecting component, wherein the quick-connect component is disposed on the outer wall of the second connecting component.

[0006] The first connecting component includes a first connecting tube, an annular groove is formed on the outer wall of the first connecting tube, a sliding insert ring is slidably installed in the annular groove, and a toggle ring is provided on the sliding insert ring. A fixing ring is provided on the outer wall of the first connecting tube near one side.

[0007] The quick-connect assembly includes an annular fixed shell, and a slider is slidably mounted through the outer wall of the annular fixed shell. One end of the slider is connected to an arc-shaped block, and a spring is connected to the slider.

[0008] More preferably, the second connecting assembly includes a second connecting tube, a sealing ring is provided on one side of the second connecting tube, the sealing ring is provided with a convex ring, and its outer wall and inner wall are both designed as inclined surfaces, the first connecting tube is provided with an arc-shaped slot adapted to the sealing ring, the arc-shaped slot is provided with a corresponding convex ring slot adapted to the convex ring, and the top and bottom of the inner wall of the arc-shaped slot are provided with a first sealing ring, and the convex ring slot is provided with a second sealing ring.

[0009] More preferably, one end of the first connecting pipe is provided with a first toothed ring, and the second connecting pipe is provided with a second toothed ring that meshes with the first toothed ring.

[0010] More preferably, the outer wall of the sliding ring and the outer wall of the fixed ring are both made into inclined surfaces, and the lowest point of the inclined surface of the sliding ring is higher than the highest point of the inclined surface of the fixed ring.

[0011] More preferably, the arc-shaped block is provided with an inclined surface that cooperates with the fixed ring and the sliding ring. When the sliding ring is in the rightmost position, the distance between the sliding ring and the fixed ring is greater than the thickness of the arc-shaped block.

[0012] More preferably, the annular fixing shell is installed on the outer wall of the second connecting pipe, and an annular mounting shell is installed on its outer wall. One end of the spring is connected to the inner wall of the annular mounting shell. The slider, the arc block and the spring constitute a set of components. There are multiple sets of these components, and the multiple sets of components are evenly distributed in a ring with the center line of the annular fixing shell as the origin.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This quick-connect pipe fitting, consisting of a first connecting component, a second connecting component, and a quick-connect component, allows for easy installation. During installation, simply align the sealing ring of the second connecting component with the arc-shaped slot of the first connecting component and push it in. The installation is completed by the engagement of the retaining ring and the inclined surface of the arc-shaped block, along with the elastic return action of the spring. No complex tools are required, improving installation convenience and efficiency. For disassembly, simply push the sliding ring with the actuating ring. The engagement of the sliding ring and the inclined surface of the arc-shaped block pushes the arc-shaped block out of its limit position, allowing for quick separation of the first and second connecting components. This simple and labor-saving operation further enhances disassembly convenience and efficiency. Furthermore, after the first and second connecting components are installed, the fit between the sealing ring and the arc-shaped slot, the engagement between the convex ring and the convex ring slot, and the combination of the first and second sealing rings form a double-sealing structure, improving the reliability of the seal after connection.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a fully enlarged cross-sectional view of the first connecting component of this utility model; Figure 3 In this utility model Figure 2 Enlarged structural diagram at point A in the diagram; Figure 4 This is a fully enlarged cross-sectional view of the second connecting component of this utility model; Figure 5 This is a fully enlarged cross-sectional view of the quick-connect assembly of this utility model.

[0016] Numbering on the map: 1. First connecting assembly; 101. First connecting tube; 102. Sliding insert ring; 103. Fixing ring; 104. First toothed ring; 105. Arc-shaped slot; 106. First sealing ring; 107. Second sealing ring; 2. Second connecting assembly; 201. Second connecting tube; 202. Second toothed ring; 203. Sealing insert ring; 3. Quick-connect assembly; 301. Annular fixing shell; 302. Annular mounting shell; 303. Slider; 304. Arc-shaped block; 305. Spring. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Please refer to the appendix carefully. Figure 1-5 A quick-connect pipe fitting includes a first connecting component 1 and a second connecting component 2, wherein a quick-connect component 3 is provided on the outer wall of the second connecting component 2.

[0020] The first connecting component 1 includes a first connecting pipe 101. An annular groove is provided on the outer wall of the first connecting pipe 101, and a sliding insert ring 102 is slidably installed in the annular groove. A toggle ring is provided on the sliding insert ring 102, and a fixing ring 103 is provided on the outer wall of the first connecting pipe 101 near one side.

[0021] The quick-connect assembly 3 includes an annular fixed shell 301. A slider 303 is slidably mounted through the outer wall of the annular fixed shell 301. One end of the slider 303 is connected to an arc-shaped block 304, and a spring 305 is connected to the slider 303 (the spring 305 is made of stainless steel, and the restoring force of the spring 305 can overcome the frictional resistance between the arc-shaped block 304 and the fixed ring 10).

[0022] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the second connecting assembly 2 includes a second connecting pipe 201. A sealing ring 203 is provided on one side of the second connecting pipe 201. The sealing ring 203 has a convex ring, and its outer wall and inner wall are both designed as inclined surfaces. An arc-shaped slot 105 adapted to the sealing ring 203 is opened on the first connecting pipe 101. A convex ring slot adapted to the convex ring is correspondingly opened in the arc-shaped slot 105. A first sealing ring 106 is provided at the top and bottom of the inner wall of the arc-shaped slot 105, and a second sealing ring 107 is provided in the convex ring slot.

[0023] When the first connecting component 1 and the second connecting component 2 are mated, the sealing ring 203 of the second connecting component 2 is inserted into the arc-shaped slot 105 on the first connecting component 1, and the convex ring on the sealing ring 203 is simultaneously embedded into the convex ring slot in the arc-shaped slot 105. At this time, the convex ring is in contact with the second sealing ring 107, and the sealing ring 203 is in contact with the two first sealing rings 106, thereby forming a double sealing structure, which improves the sealing performance after the first connecting component 1 and the second connecting component 2 are mated (the first sealing rings 106 and the second sealing rings 107 can be manually replaced after long-term wear).

[0024] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a first toothed ring 104 is provided at one end of the first connecting pipe 101, and a second toothed ring 202 is provided on the second connecting pipe 201 to mesh with the first toothed ring 104. When the first connecting component 1 and the second connecting component 2 are docked, the first toothed ring 104 and the second toothed ring 202 form a mutually meshing state, which can limit the relative rotation of the two after docking, thereby improving the structural stability of the first connecting component 1 and the second connecting component 2 after docking.

[0025] In this embodiment, as Figure 2 and Figure 3 As shown, the outer wall of the sliding ring 102 and the outer wall of the fixed ring 103 are both made into inclined surfaces, and the lowest point of the inclined surface of the sliding ring 102 is higher than the highest point of the inclined surface of the fixed ring 103. When the inclined surface on the sliding ring 102 or the fixed ring 103 contacts the inclined surface on the arc block 304, the arc block 304 can be pushed upward, thereby facilitating the installation and disassembly of the first connecting component 1 and the second connecting component 2.

[0026] In this embodiment, as Figure 1 , Figure 2 and Figure 5 As shown, the arc-shaped block 304 has an inclined surface that cooperates with the fixed ring 103 and the sliding ring 102. When the sliding ring 102 is at the rightmost position, the distance between the sliding ring 102 and the fixed ring 103 is greater than the thickness of the arc-shaped block 304. When the fixed ring 103 pushes the arc-shaped block 304 upward and then inserts it between the fixed ring 103 and the sliding ring 102, the installation of the first connecting component 1 and the second connecting component 2 can be realized, improving the ease of installation.

[0027] In this embodiment, as Figure 1 , Figure 2 and Figure 5 As shown, the annular fixing shell 301 is installed on the outer wall of the second connecting pipe 201, and an annular mounting shell 302 is installed on its outer wall. One end of the spring 305 is connected to the inner wall of the annular mounting shell 302. The slider 303, the arc block 304 and the spring 305 constitute a set of components. There are multiple sets of these components, and the multiple sets of components are evenly distributed in a ring with the center line of the annular fixing shell 301 as the origin.

[0028] When the first connecting component 1 docks with the second connecting component 2, after the inclined surface on the fixed ring 103 contacts the inclined surface on the arc block 304, the arc block 304 and the slider 303 move under the pushing force, and the spring 305 is compressed accordingly. After the fixed ring 103 separates from the arc block 304, the arc block 304 and the slider 303 move under the elastic force of the spring 305, so that the plane of the arc block 304 fits with the plane of the fixed ring 103. In addition, the tail of the slider 303 is provided with a limiting protrusion to prevent the slider 303 from falling off the annular fixed shell 301.

[0029] The specific operating procedure of this utility is as follows: First, connect the pipes to the first connecting component 1 and the second connecting component 2 respectively. When it is necessary to connect the first connecting component 1 and the second connecting component 2, align the sealing ring 203 of the second connecting component 2 with the arc-shaped slot 105 of the first connecting component 1 and push it in.

[0030] During the process, the inclined surface on the fixed ring 103 first contacts the inclined surface of the arc block 304 in the quick-connect assembly 3. As the pushing force increases, the arc block 304 and the slider 303 move upward under the pushing force, and the spring 305 is compressed.

[0031] When the sealing ring 203 is fully inserted into the arc-shaped slot 105, the convex ring on the sealing ring 203 is simultaneously inserted into the convex ring slot in the arc-shaped slot 105. The convex ring contacts the second sealing ring 107, and the sealing ring 203 contacts the two first sealing rings 106. At the same time, the first toothed ring 104 on the first connecting pipe 101 and the second toothed ring 202 on the second connecting pipe 201 mesh with each other.

[0032] At the same time, the fixing ring 103 separates from the arc-shaped block 304. The arc-shaped block 304 and the slider 303 are reset and moved down under the elastic force of the spring 305. The plane of the arc-shaped block 304 is closely attached to the plane of the fixing ring 103. The arc-shaped block 304 is located between the fixing ring 103 and the sliding insert ring 102 at the rightmost end, thus completing the installation and fixing of the first connecting component 1 and the second connecting component 2.

[0033] When disassembly is required, the sliding insert ring 102 is pushed to the left by the toggle ring. The inclined surface of the sliding insert ring 102 contacts the inclined surface of the arc block 304 and pushes it upward, so that the displacement distance of the arc block 304 is greater than the height of the fixed ring 103. Then, the first connecting component 1 and the second connecting component 2 can be pulled in the opposite direction to separate them, thus achieving convenient disassembly.

[0034] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A quick-connect fitting for pipelines, comprising a first connecting component (1) and a second connecting component (2), characterized in that: The second connecting component (2) is provided with a quick-connect component (3) on its outer wall; The first connecting component (1) includes a first connecting tube (101), the outer wall of the first connecting tube (101) is provided with an annular groove, and a sliding insert ring (102) is slidably installed in the annular groove, and a toggle ring is provided on the sliding insert ring (102), and a fixing ring (103) is provided on the outer wall of the first connecting tube (101) near one side. The quick-connect assembly (3) includes an annular fixed shell (301), and a slider (303) is slidably mounted through the outer wall of the annular fixed shell (301). One end of the slider (303) is connected to an arc-shaped block (304), and a spring (305) is connected to the slider (303).

2. The quick-connect fitting for pipelines according to claim 1, characterized in that: The second connecting component (2) includes a second connecting tube (201). A sealing ring (203) is provided on one side of the second connecting tube (201). The sealing ring (203) is provided with a convex ring, and its outer wall and inner wall are both designed as inclined surfaces. An arc-shaped slot (105) adapted to the sealing ring (203) is provided on the first connecting tube (101). A convex ring slot adapted to the convex ring is provided in the arc-shaped slot (105). A first sealing ring (106) is provided at the top and bottom of the inner wall of the arc-shaped slot (105), and a second sealing ring (107) is provided in the convex ring slot.

3. A quick-connect fitting for pipelines according to claim 2, characterized in that: One end of the first connecting pipe (101) is provided with a first toothed ring (104), and the second connecting pipe (201) is provided with a second toothed ring (202) that meshes with the first toothed ring (104).

4. A quick-connect fitting for pipelines according to claim 1, characterized in that: The outer wall of the sliding ring (102) and the outer wall of the fixed ring (103) are both set as inclined surfaces, and the lowest point of the inclined surface of the sliding ring (102) is higher than the highest point of the inclined surface of the fixed ring (103).

5. A quick-connect fitting for pipelines according to claim 1, characterized in that: The arc-shaped block (304) is provided with an inclined surface that cooperates with the fixed ring (103) and the sliding ring (102). When the sliding ring (102) is at the rightmost position, the distance between the sliding ring (102) and the fixed ring (103) is greater than the thickness of the arc-shaped block (304).

6. A quick-connect fitting for pipelines according to claim 1, characterized in that: The annular fixing shell (301) is installed on the outer wall of the second connecting pipe (201), and an annular mounting shell (302) is installed on its outer wall. One end of the spring (305) is connected to the inner wall of the annular mounting shell (302). The slider (303), the arc block (304) and the spring (305) constitute a set of components. There are multiple sets of these components, and the multiple sets of components are evenly distributed in a ring with the center line of the annular fixing shell (301) as the origin.

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