Quick connecting device for PE pipe fittings

Abstract

The utility model discloses a quick connecting device for PE pipe fittings, and belongs to the technical field of PE pipe fitting connecting devices. Comprising a first PE pipe fitting and a second PE pipe fitting, and the sides, close to each other, of the first PE pipe fitting and the second PE pipe fitting are in threaded connection with a butt joint ring through a clamping assembly; by arranging the butt joint ring and the internal thread connector ring, the external thread of the butt joint ring and the internal thread of the internal thread connector ring can be in butt joint rapidly, wide-buckle threaded connection is more stable, the contact area of the threads is increased, external force such as pulling force and pressure can be better borne, loosening is not prone to occurring after connection, mounting and dismounting are convenient, the thread pitch is relatively large, and the thread is not prone to being damaged when screwed in or screwed out. The screw is simple in structure and small in number of rotation turns, installation or disassembly operation can be completed more quickly, blockage is not prone to occurring, for example, in some impurity environments such as PE pipe fitting burying scenes, the situation that use is affected due to the fact that a wide thread pitch is not prone to being filled with impurities is avoided, and meanwhile the problem that in the prior art, a thread groove is exposed to the outside and deforms and rusts is solved.

Description

Technical Field

[0001] This application relates to the field of PE pipe fitting connection technology, and more specifically, to a quick connection device for PE pipe fittings. Background Technology

[0002] PE water supply pipe fittings are polyethylene connection components specifically designed for water supply systems, suitable for water supply piping systems in industrial and civil buildings. They are corrosion-resistant, pressure-resistant, and ensure smooth water flow.

[0003] In related technologies, to solve the problem of PE pipes being damaged and difficult to connect during daily use, the prior art patent with publication number CN222334872U provides a quick connection device for PE pipe fittings, including a secondary pipe with tapered joints at both ends. A fixing plate is fitted on the outer circumferential surface of the secondary pipe, and holes are symmetrically opened on both sides of the fixing plate. A connecting rod is fitted in the hole, a limit ring is welded to one end of the connecting rod, and a threaded rod is welded to the other end of the connecting rod. A nut is threaded onto the threaded rod, and the threaded rod moves through a limit block. A clamping plate is welded to one side of the limit block, and fixing blocks are symmetrically connected to the outer sides of both ends of the clamping plate. Holes are opened on the two fixing blocks.

[0004] Although the existing technical solutions mentioned above achieve the effect of direct pipe connection by setting a rotating nut to drive the tapered joint against the main pipe, the existing pipe fixing method results in the external shape of the pipe protruding, which occupies a lot of space. The screws and nuts are exposed to the outside for a long time, which poses a risk of rust and deformation. Disassembly and replacement are also relatively troublesome.

[0005] In view of this, we propose a quick connection device for PE pipe fittings. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] The purpose of this application is to provide a quick connection device for PE pipe fittings, which solves the technical problems of existing pipe fixing methods that result in protruding external shapes of pipe fittings, large space occupation, and the risk of rust and deformation of screws and nuts due to long-term exposure to the outside, as well as the cumbersome disassembly and replacement. The device achieves the technical effect of quick connection of PE pipe fittings and easy disassembly and replacement of parts later.

[0008] 2. Technical Solution

[0009] This application provides a quick connection device for PE pipe fittings, including a first PE pipe fitting and a second PE pipe fitting. The first PE pipe fitting and the second PE pipe fitting are connected to a mating ring by a snap-fit ​​assembly on one side of each other. The mating ring has wide threaded openings symmetrically arranged on both sides. The snap-fit ​​assembly includes an internal threaded interface ring, a clamp, a T-shaped gasket, and a sealing ring, which are respectively fitted onto the first PE pipe fitting and the second PE pipe fitting in sequence.

[0010] Preferably, the outer side of the clamp portion is provided with wedge-shaped protrusions extending equidistantly from top to bottom in an annular shape, the side is C-shaped, and one end has an engaging notch.

[0011] Preferably, the clamp part is made of POM high-hardness material.

[0012] Preferably, the clamp portion has uniformly stacked annular protrusions inside.

[0013] Preferably, the docking ring has symmetrically arranged annular partitions inside, and the T-shaped gasket is disposed between the clamp and the sealing ring to limit the T-shaped gasket.

[0014] Preferably, the sealing ring is made of O-ring rubber, which has a good sealing effect.

[0015] Preferably, the outer ring of the inner thread interface ring and the mating ring is provided with anti-slip protrusions to facilitate rotation and provide friction during installation and disassembly.

[0016] 3. Beneficial effects

[0017] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0018] (1) This application has a butt ring and an internal thread interface ring. The threads on the outside of the butt ring and the inside of the internal thread interface ring can be quickly connected. The wide thread connection is more stable, the contact area of ​​the thread is increased, and it can better withstand external forces such as tension and pressure. It is not easy to loosen after connection, and it is easy to install and disassemble. The pitch is relatively large, and the number of rotations is less when screwing in or out, so the installation or disassembly operation can be completed more quickly and it is not easy to get clogged. For example, in some environments with impurities, such as PE pipe buried scenarios, the wider thread pitch is not easy to be filled by impurities and affect the use. At the same time, it avoids the problem of the thread groove being exposed to the outside, deforming and rusting in the prior art.

[0019] (2) This application has a locking component, and the clamp part can stably lock on the outside of the first PE pipe fitting and the second PE pipe fitting. Due to the resistance of the annular protrusion, the first PE pipe fitting cannot be pulled out in parallel. It can only be removed from the side notch to fit the T-shaped gasket and sealing ring. The sealing ring is tightly pressed against one side of the annular partition to ensure the sealing of the pipeline after the first PE pipe fitting and the second PE pipe fitting are connected, and to avoid liquid leakage. Attached Figure Description

[0020] Figure 1 This is a first three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is an exploded three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the clamp part of this utility model;

[0023] Figure 4 This is a frontal cross-sectional view of the present invention.

[0024] The following are the labels in the diagram: 110, First PE pipe fitting; 111, Second PE pipe fitting; 120, Butt ring; 121, Wide threaded opening; 122, Annular partition; 200, Clamping assembly; 210, Internal threaded interface ring; 211, Clamping part; 212, T-shaped gasket; 213, Sealing ring; 214, Annular protrusion. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] Please see Figure 1-4 This utility model provides an embodiment of a quick-connect device for PE pipe fittings, including a first PE pipe fitting 110 and a second PE pipe fitting 111. The first PE pipe fitting 110 and the second PE pipe fitting 111 are close to each other and are threadedly connected to a mating ring 120 via a snap-fit ​​assembly 200. The mating ring 120 has symmetrically arranged wide-threaded openings 121 on both sides. The snap-fit ​​assembly 200 includes an internal threaded interface ring 210, a clamping part 211, a T-shaped washer 212, and a sealing ring 213, which are respectively fitted onto the first PE pipe fitting 110 and the second PE pipe fitting 111. The threads on the outside of the mating ring 120 and the inside of the internal threaded interface ring 210 can quickly connect. The wide-threaded connection is more stable, increases the contact area of ​​the threads, and can better withstand tensile and compressive forces. The connection is less prone to loosening and has high reliability. Easy to install and disassemble, with a relatively large thread pitch, requiring fewer rotations when screwing in or out, allowing for faster installation or disassembly and preventing clogging. For example, in environments with impurities, such as buried PE pipes, the wider thread pitch is less likely to be filled with impurities and affect use. It also avoids the problem of exposed thread grooves deforming and rusting in existing technologies.

[0028] Furthermore, the outer side of the clamp part 211 is provided with wedge-shaped protrusions extending from top to bottom in an annular pattern, and the side is C-shaped with a locking notch at one end. The inside of the clamp part 211 is provided with uniform annular protrusions 214 stacked in an annular pattern. The clamp part 211 can stably lock and engage outside the first PE pipe fitting 110 and the second PE pipe fitting 111. Due to the resistance of the annular protrusions 214, the first PE pipe fitting 110 cannot be slid out in parallel and can only be disassembled from the side notch.

[0029] Furthermore, annular baffles 122 are symmetrically arranged inside the docking ring 120. T-shaped gaskets 212 are arranged between the clamping part 211 and the sealing ring 213 to limit the T-shaped gaskets 212. The sealing ring 213 is made of O-ring rubber material, so that the clamping part 211 can position the installation position of the clamping component 200 and limit it to one side of the T-shaped gasket 212. The T-shaped gasket 212 cooperates with the sealing ring 213 to tightly press the sealing ring 213 against one side of the annular baffle 122, ensuring the sealing of the pipeline after the first PE pipe fitting 110 and the second PE pipe fitting 111 are docked, and preventing liquid leakage.

[0030] Furthermore, the inner thread interface ring 210 and the mating ring 120 are provided with anti-slip protrusions on their outer rings, while the T-shaped pad 212 and the sealing ring 213 are vulnerable parts that can be disassembled and replaced periodically.

[0031] In summary, the quick-connect device for PE pipe fittings disclosed in this application allows for rapid connection between the external threads of the mating ring 120 and the internal threads of the internal thread interface ring 210. The wide-thread connection is more stable, increases the contact area of ​​the threads, and can better withstand external forces such as tension and pressure. The connection is less prone to loosening and has high reliability. Installation and disassembly are convenient. The relatively large thread pitch reduces the number of rotations during screwing in or out, allowing for faster installation or disassembly and reducing the risk of clogging. For example, in environments with impurities, such as buried PE pipe fittings, the wider thread pitch is less likely to be filled with impurities, thus avoiding the problem of exposed thread grooves deforming and rusting, as seen in existing technologies.

[0032] The clamp part 211 can stably engage with the outside of the first PE pipe fitting 110 and the second PE pipe fitting 111. Due to the resistance of the annular protrusion 214, the first PE pipe fitting 110 cannot be slid out in parallel and can only be disassembled from the side notch. The sealing ring 213 is made of O-ring rubber, which allows the clamp part 211 to position the installation position of the engaging component 200 and restrict it to one side of the T-shaped gasket 212. The T-shaped gasket 212, together with the sealing ring 213, tightly presses the sealing ring 213 against one side of the annular partition 122, ensuring the sealing of the pipeline after the first PE pipe fitting 110 and the second PE pipe fitting 111 are connected, and preventing liquid leakage. At the same time, the T-shaped gasket 212 and the sealing ring 213 are vulnerable parts and can be disassembled and replaced periodically.

[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick coupling device for PE pipe fittings, characterized in that include: The first PE pipe fitting (110) and the second PE pipe fitting (111) are threadedly connected to the mating ring (120) by a snap-fit ​​assembly (200) on one side close to each other. The mating ring (120) is symmetrically provided with wide threaded openings (121) on both sides. The locking assembly (200) includes an internal threaded interface ring (210), a clamping part (211), a T-shaped gasket (212) and a sealing ring (213) respectively fitted onto the first PE pipe fitting (110) and the second PE pipe fitting (111).

2. The PE pipe fitting quick coupling device according to claim 1, characterized in that: The clamp part (211) has wedge-shaped protrusions extending from top to bottom in an annular shape on the outer side, and the side is C-shaped with a locking notch at one end.

3. The PE pipe fitting quick coupling device according to claim 1, characterized in that: The clamp part (211) is made of POM high hardness material.

4. The PE pipe fitting quick coupling device according to claim 1, characterized in that: The clamp part (211) has uniformly stacked annular protrusions (214) inside.

5. The PE pipe fitting quick coupling device according to claim 1, characterized in that: The docking ring (120) is symmetrically provided with annular partitions (122), and the T-shaped gasket (212) is provided between the clamp part (211) and the sealing ring (213) to limit the T-shaped gasket (212).

6. The PE pipe fitting quick connection device according to claim 1, characterized in that: The sealing ring (213) is made of O-ring rubber.

7. The PE pipe fitting quick connection device according to claim 1, characterized in that: The inner thread interface ring (210) and the docking ring (120) are provided with anti-slip protrusions on their outer sides.

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