A pipe joint assembly that facilitates maintenance

Abstract

The application discloses a pipeline joint assembly convenient to maintain, which comprises a first pipeline, a second pipeline, a connecting piece and a plurality of locking pieces, the second pipeline is arranged in butt joint with the first pipeline, the connecting piece is arranged in the first pipeline in sliding mode along the axial direction of the first pipeline, and position switching is performed between a first position and a second position; when the connecting piece is located at the first position, the connecting piece is located inside the first pipeline as a whole, when the connecting piece is located at the second position, both ends of the connecting piece are located in the first pipeline and the second pipeline at the same time, and the connecting piece is in sealing connection with the first pipeline and the second pipeline; at least one locking piece is arranged through the first pipeline and the connecting piece at the same time, and at least one locking piece is arranged through the second pipeline and the connecting piece at the same time. The application can make the disassembly and assembly operation of the joint assembly simple and convenient, and improve the connection efficiency and operation and maintenance efficiency of the pipeline.

Description

Technical Field

[0001] This application relates to the field of pipe connection technology, and more specifically, to a pipe fitting assembly that is easy to maintain. Background Technology

[0002] Pipe fittings are an indispensable component in piping systems, primarily used for connecting multiple pipe sections. In existing systems, to ensure connection and sealing between pipes, two pipe sections are placed on either side of the fitting assembly, and the fitting and pipes are fused together using specialized welding equipment to form a stable connection and seal.

[0003] In the process of realizing this invention, the inventors discovered that the prior art has at least the following problems: it requires the use of special equipment and strict adherence to construction specifications on the construction site, requires a high level of professionalism from the installation workers, requires pipe cutting for later maintenance, and the installation and disassembly process is cumbersome. Utility Model Content

[0004] This application provides a pipe joint assembly that is easy to maintain, making the assembly and disassembly of the joint assembly simple and convenient, and improving the connection efficiency and operation and maintenance efficiency of the pipeline.

[0005] The pipe joint assembly that is easy to maintain provided in this application adopts the following technical solution:

[0006] A maintenance-friendly pipe fitting assembly, comprising:

[0007] First pipeline;

[0008] The second pipe is connected to the first pipe;

[0009] A connector is slidably disposed within the first pipe along the axial direction of the first pipe to switch between a first position and a second position; when the connector is in the first position, the connector is entirely located inside the first pipe; when the connector is in the second position, both ends of the connector are simultaneously located inside the first pipe and the second pipe, and the connector is sealed to both the first pipe and the second pipe.

[0010] Multiple locking elements are provided. When the connector is in the second position, at least one locking element passes through both the first pipe and the connector, and at least one locking element passes through both the second pipe and the connector.

[0011] Optionally, the first pipe is provided with a groove in the axial direction, the connector is provided with a handle and a fastener, the handle is fixed to the connector by the fastener, and the handle is provided on the outer peripheral wall of the first pipe, and one end of the fastener passes through the groove and slides along the groove.

[0012] Optionally, the connector has a connecting boss on its peripheral wall, and the second pipe has a connecting groove at one end near the first pipe. When the connector is in the second position, the connecting boss slides along the groove into the connecting groove, and the connecting boss engages with the connecting groove.

[0013] Optionally, a plurality of first limiting blocks are provided on one side wall of the slide, and a first locking groove is formed between two adjacent first limiting blocks; a second limiting block is provided on the inner wall of the connecting groove, and a second locking groove is formed between the second limiting block and the bottom of the connecting groove.

[0014] When the connector is in the second position, the fastener is set in the first snap-fit ​​groove, and the connecting boss is set in the second snap-fit ​​groove. The connector is rotated so that the connector drives the fastener and the connecting boss to be located in the first snap-fit ​​groove and the second snap-fit ​​groove respectively.

[0015] Optionally, the first pipe and the second pipe are each provided with a first locking hole, and the connector is provided with at least two second locking holes along its length.

[0016] When the connector is in the second position, the first lock hole and the second lock hole are arranged in a one-to-one correspondence, and the central axis of the first lock hole coincides with the central axis of the second lock hole. The locking member passes through both the first lock hole and the second lock hole to lock the connector.

[0017] Optionally, the connector assembly further includes a plurality of sealing rings, which are respectively disposed on the inner walls of the first pipe and the second pipe. When the connector is in the second position, the plurality of sealing rings form a seal with the peripheral wall of the connector.

[0018] Optionally, the connector assembly further includes a dustproof component for shielding the gap between the first pipe and the second pipe.

[0019] Optionally, the dustproof component is disposed at the connection between the first pipe and the second pipe, and the inner wall of the dustproof component is sealed to both the peripheral wall of the first pipe and the peripheral wall of the second pipe.

[0020] Optionally, the dustproof component is provided with a plug-in interface, the dustproof component is arranged in a ring around one of the first pipe and the second pipe, and the other of the first pipe and the second pipe is inserted into the plug-in interface.

[0021] Optionally, one of the first pipe and the second pipe is provided with a protrusion, and the other of the first pipe and the second pipe is provided with a recess. When the first pipe and the second pipe are connected, the protrusion is inserted into the recess.

[0022] Compared with existing technologies, the technical solution provided in this application has at least the following advantages:

[0023] When connecting the first and second pipes, the first and second pipes are aligned, and the connecting piece is slid along the axial direction of the first pipe, moving it from a first position to a second position. When the connecting piece is in the second position, both ends are simultaneously located within the first and second pipes, meaning one end of the connecting piece is inserted into the second pipe. This allows the connecting piece to connect the first and second pipes, creating internal connectivity between them, thus achieving pipe connection. Subsequently, the locking mechanism is inserted through the first pipe and the connecting piece to lock them together. The locking mechanism is then inserted through the second pipe and the connecting piece... The first and second pipes are connected by locking the second pipe to the connector, thus preventing them from separating and improving the reliability of the pipe joint assembly. When it is necessary to disassemble the first and second pipes, simply remove the locking device and slide the connector along the axial direction of the first pipe to move it from the second position to the first position, thereby disconnecting the first and second pipes. The pipe joint assembly provided in this application does not require special tools for pipe installation or disassembly, has low requirements for worker expertise, and is simple and convenient to operate, improving the connection efficiency and maintenance efficiency of the pipes. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of a pipe joint assembly that is easy to maintain, as disclosed in Embodiment 1 of this application;

[0026] Figure 2 This is an exploded view of the structure of a pipe joint assembly that is easy to maintain, as disclosed in Embodiment 1 of this application;

[0027] Figure 3 This is a cross-sectional view of a maintenance-friendly pipe fitting assembly disclosed in Embodiment 1 of this application;

[0028] Figure 4 This is a schematic diagram of the overall structure of a pipe joint assembly that is easy to maintain, as disclosed in Embodiment 2 of this application;

[0029] Figure 5 This is a structural cross-sectional view of a pipe joint assembly that is easy to maintain, as disclosed in Embodiment 2 of this application;

[0030] Figure 6 This is a structural cross-sectional view of a pipe joint assembly that is easy to maintain, as disclosed in Embodiment 3 of this application;

[0031] Figure 7 This is a structural cross-sectional view of a pipe joint assembly that is easy to maintain, as disclosed in Embodiment 4 of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. First pipe; 11. Slide groove; 12. First limiting block; 13. First snap-fit ​​groove; 14. Protrusion; 2. Second pipe; 21. Connecting groove; 22. Second limiting block; 23. Second snap-fit ​​groove; 24. Recess; 3. Connecting piece; 31. Handle; 32. Fastener; 33. Connecting boss; 34. Second locking hole; 4. Locking piece; 5. First locking hole; 6. Sealing ring; 7. Dustproof piece; 71. Insertion interface. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] This application provides a pipe joint assembly that is easy to maintain, making the assembly and disassembly of the joint assembly simple and convenient, and improving the connection efficiency and operation and maintenance efficiency of the pipeline.

[0036] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all of them. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application. Furthermore, the technical solutions of 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 cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0037] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] Please see Figures 1 to 3 This is one embodiment of the pipe joint assembly in this application, which includes a first pipe 1, a second pipe 2, a connector 3, and a plurality of locking members 4.

[0039] Both the first pipe 1 and the second pipe 2 can be integrated with the pipeline. The first pipe 1 and the second pipe 2 are generally hollow cylindrical in shape, and their inner diameters are the same. The first pipe 1 and the second pipe 2 are connected together. The connector 3 is slidably disposed within the first pipe 1 along its axial direction, switching between a first position and a second position to connect or disconnect the first pipe 1 and the second pipe 2. When the connector 3 is in the second position, both ends of the connector 3 are simultaneously located within the first pipe 1 and the second pipe 2, and the connector 3 is sealed to both the first pipe 1 and the second pipe 2. At least one locking member 4 passes through both the first pipe 1 and the connector 3, and at least one locking member 4 passes through both the second pipe 2 and the connector 3. Multiple locking members 4 can lock the connector 3 to the first pipe 1 and the connector 3 to the second pipe 2 respectively, preventing the connector 3 from detaching from the first pipe 1 and the second pipe 2, thereby achieving the connection between the first pipe 1 and the second pipe 2.

[0040] In this embodiment, when it is necessary to connect the first pipe 1 and the second pipe 2, the first pipe 1 and the second pipe 2 are operated to align. When the connector 3 is in the first position, the entire connector 3 is located inside the first pipe 1. The connector 3 is operated to slide along the axial direction of the first pipe 1. As the connector 3 gradually moves from the first position to the second position, the end of the connector 3 near the second pipe 2 is gradually inserted into the second pipe 2 until the connector 3 moves to the second position. When the connector 3 is in the second position, both ends of the connector 3 are simultaneously located inside the first pipe 1 and the second pipe 2, enabling the connection between the first pipe 1 and the second pipe 2, so that the first pipe 1, the connector 3, and the interior of the second pipe 2 can be connected. The process involves several steps: first, the pipes are connected; second, the locking element 4 is inserted through the first pipe 1 and the connector 3 to lock them together; third, the locking element 4 is inserted through the second pipe 2 and the connector 3 to lock them together, thus connecting the first pipe 1 and the second pipe 2 and preventing them from separating, thereby improving the reliability of the pipe joint assembly. When it is necessary to disassemble the first pipe 1 and the second pipe 2, simply remove the locking element 4 and slide the connector 3 along the axial direction of the first pipe 1 to move it from the second position to the first position, thus disconnecting the first pipe 1 and the second pipe 2. The connection and disconnection of the pipes can be achieved simply by sliding the connector 3. During pipe installation or disassembly, it is not necessary to pry open one side of the pipe, allowing for pipe maintenance in confined spaces. Furthermore, no special tools are required for pipe installation or disassembly, requiring less expertise from workers, and the operation is simple and convenient, improving the efficiency of pipe connection and maintenance.

[0041] Please see Figure 1 and Figure 3In order to facilitate the operation of the connector 3 to move inside the first pipe 1 and the second pipe 2, the first pipe 1 is provided with a groove 11 in the axial direction, the connector 3 is provided with a handle 31 and a fastener 32, the handle 31 is fixed to the connector 3 by the fastener 32, and the handle 31 is provided on the outer peripheral wall of the first pipe 1, and one end of the fastener 32 passes through the groove 11 and slides along the groove 11. In this embodiment, two slide grooves 11 are provided, and the two slide grooves 11 are centrally symmetrically arranged along the central axis of the first pipe 1. The handle 31 is semi-circular and surrounds the outer peripheral wall of the first pipe 1. During pipe installation, the first pipe 1 and the second pipe 2 are connected. By pulling the handle 31, the fastener 32 is driven to move along the slide groove 11, so that the connector 3 can move synchronously, allowing the connector 3 to quickly switch from the first position to the second position, realizing the connection between the first pipe 1 and the second pipe 2. During pipe disassembly, the locking member 4 is released from the locking of the connector 3. Pulling the handle 31 drives the fastener 32 to move along the slide groove 11, thereby driving the connector 3 to move synchronously, allowing the connector 3 to quickly switch from the second position to the first position, realizing the disconnection between the first pipe 1 and the second pipe 2.

[0042] Specifically, in this embodiment, the slide 11 is configured as a groove with an opening at one end, the opening of which faces the second pipe 2. The length of the slide 11 limits the range of motion of the fastener 32, and the length of the slide 11 is the distance that the connector 3 can move. When the first pipe 1 and the second pipe 2 are connected, the second pipe 2 blocks the opening of the slide 11. When the fastener 32 moves to the leftmost end of the slide 11, the connector 3 is in the first position. When the fastener 32 moves to the rightmost end of the slide 11, the connector 3 is in the second position, which facilitates precise adjustment of the connector 3. In other embodiments, the slide 11 can be configured as a groove that is closed at both ends, and the distance between the two ends of the slide 11 is the range of motion of the fastener 32.

[0043] Please see Figure 3To achieve locking of the first pipe 1 and connector 3, and the second pipe 2 and connector 3 by the locking member 4, the first pipe 1 and the second pipe 2 are respectively provided with first locking holes 5, and the connector 3 is provided with at least two second locking holes 34 along its length. When the connector 3 is in the second position, the first locking holes 5 and the second locking holes 34 are arranged in a one-to-one correspondence, and the central axis of the first locking hole 5 coincides with the central axis of the second locking hole 34. The fastener 32 passes through both the first locking holes 5 and the second locking holes 34 to lock the connector 3. In this embodiment, the first locking holes 5 and the second locking holes 34 are the same size, and both the first locking holes 5 and the second locking holes 34 have internal threads. The locking member 4 is preferably a screw. When the first pipe 1 and the second pipe 2 are connected, the distance between the two first locking holes 5 is equal to the distance between the two second locking holes 34. The screw passes through both the first locking holes 5 and the second locking holes 34 to lock the first pipe 1 and connector 3, and the second pipe 2 and connector 3, preventing the connector 3 from disengaging from the first pipe 1 and the second pipe 2.

[0044] Please see Figure 1 and Figure 2 To further enhance the connection stability between the first pipe 1 and the connector 3, a plurality of first limiting blocks 12 are provided on one side wall of the slide groove 11, and a first locking groove 13 is formed between adjacent first limiting blocks 12. The distance between the end of the first limiting block 12 and the other side wall of the slide groove 11 allows the fastener 32 to slide through. When the connector 3 is in the second position, the fastener 32 is located in the slide groove 11 and is positioned corresponding to the first locking groove 13. The connector 3 is rotated so that the connector 3 drives the fastener 32 to be located in the first locking groove 13. The fastener 32 located in the first locking groove 13 is locked with the two adjacent first limiting blocks 12. On the one hand, the two adjacent first limiting blocks 12 limit the fastener 32 in the direction along the central axis of the first pipe 1, thereby limiting the connector 3 from continuing to slide and preventing the connector 3 from falling out of the first pipe 1. On the other hand, the first locking groove 13 limits the connector 3 in the circumferential direction, thereby limiting the rotation of the connector 3.

[0045] Please continue reading. Figure 1 and Figure 2To further enhance the connection stability between the second pipe 2 and the connector 3, a connecting boss 33 is provided on the peripheral wall of the connector 3, and the connecting boss 33 is slidably disposed in the slide groove 11; a connecting groove 21 is provided at the end of the second pipe 2 near the first pipe 1, the opening of the connecting groove 21 faces the first pipe 1, and the opening of the connecting groove 21 is the same size as the opening of the slide groove 11. When the first pipe 1 and the second pipe 2 are connected, the slide groove 11 can be connected to the connecting groove 21, and the connecting boss 33 can slide from the slide groove 11 into the connecting groove 21; when the connector 3 is in the second position, the connecting boss 33 is located in the connecting groove 21, and the connecting boss 33 is engaged with the connecting groove 21. Specifically, a second limiting block 22 is provided on the inner wall of the connecting groove 21. A second locking groove 23 is formed between the second limiting block 22 and the bottom of the connecting groove 21. The connecting piece 3 drives the connecting boss 33 to move along the sliding groove 11. When the connecting piece 3 is in the second position, the connecting boss 33 is set in the second locking groove 23. The connecting piece 3 is rotated so that the connecting piece 3 drives the connecting boss 33 to be located in the second locking groove 23. The connecting boss 33 located in the second locking groove 23 is locked with the second locking groove 23, so that the connecting piece 3 is limited in the axial direction, thereby restricting the connecting piece 3 from falling out of the second pipe 2. At the same time, the first locking groove 13 limits the connecting piece 3 in the circumferential direction, thereby restricting the rotation of the connecting piece 3 in the circumferential direction.

[0046] Please see Figure 3 To ensure the sealing effect of the pipeline, the pipeline joint also includes multiple sealing rings 6. These sealing rings 6 are respectively disposed on the inner walls of the first pipe 1 and the second pipe 2. When the connector 3 is in the second position, a seal is formed between the sealing rings 6 and the peripheral wall of the connector 3. In this embodiment, two sealing rings 6 are arranged parallel to each other on the inner wall of the first pipe 1 to double-seal the gap between the first pipe 1 and the connector 3. Similarly, two sealing rings 6 are arranged parallel to each other on the inner wall of the second pipe 2 to double-seal the gap between the second pipe 2 and the connector 3 when the connector 3 is in the second position. This double sealing ensures high sealing reliability between the first pipe 1 and the connector 3, and between the second pipe 2 and the connector 3, making it suitable for both high and low pressure scenarios and expanding the application scenarios of the pipeline joint.

[0047] During prolonged use, dust easily accumulates on the surfaces of the first pipe 1 and the second pipe 2. Since the first pipe 1 and the second pipe 2 are separate entities, a gap exists at the connection point when they are joined. Dust falls from this connection point onto the surface of the connector 3 and then moves with the connector 3 into the interior of both pipes, contaminating the sealing ring 6 and potentially causing leaks. To address this issue, the pipe joint also includes a dustproof component 7, which covers the gap between the first pipe 1 and the second pipe 2, allowing dust to settle on its surface and significantly reducing dust accumulation at the connection point.

[0048] For details, please refer to Figure 4 and Figure 5 In some embodiments, the dustproof component 7 is disposed around the connection between the first pipe 1 and the second pipe 2. The inner wall of the dustproof component 7 is sealed to both the periphery of the first pipe 1 and the periphery of the second pipe 2. The dustproof component 7 is preferably a dustproof sealing ring 6. By setting the dustproof sealing ring 6, on the one hand, the connection between the first pipe 1 and the second pipe 2 can be blocked to prevent dust from falling into the pipe joint. On the other hand, the dustproof sealing ring 6 can achieve a seal between the first pipe 1 and the second pipe 2, further enhancing the sealing performance of the pipe.

[0049] Please see Figure 6 In other embodiments, the dustproof component 7 is annularly disposed in one of the first pipe 1 and the second pipe 2. The dustproof component 7 is provided with a connector 71, and the other of the first pipe 1 and the second pipe 2 is inserted into the connector 71. In this embodiment, the dustproof component 7 is annularly disposed in the second pipe 2. The dustproof component 7 can be integrally formed with the second pipe 2, or it can be detachably and fixedly connected to the second pipe 2. The connector 71 of the dustproof component 7 faces the first pipe 1, and the dustproof component 7 is flared. When the first pipe 1 and the second pipe 2 are connected, the second pipe 2 is inserted into the connector 71, and the dustproof component 7 can cover the connection between the first pipe 1 and the second pipe 2 to prevent dust.

[0050] Please see Figure 7In order to cover the gap between the first pipe 1 and the second pipe 2, in other embodiments, one of the first pipe 1 and the second pipe 2 is provided with a protrusion 14, and the other of the first pipe 1 and the second pipe 2 is provided with a recess 24. When the first pipe 1 and the second pipe 2 are connected, the protrusion 14 is inserted into the recess 24. In this embodiment, the first pipe 1 is provided with a protrusion 14, and the second pipe 2 is provided with a recess 24. It can be understood that the provision of the protrusion 14 and the recess 24 causes a small misalignment between the first pipe 1 and the second pipe 2. When the first pipe 1 and the second pipe 2 are connected, the protrusion 14 is inserted into the recess 24. Due to the presence of the protrusion 14, dust falling from the connection between the first pipe 1 and the second pipe 2 accumulates on the protrusion 14, thereby effectively preventing dust from falling into the pipe joint.

[0051] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A pipe fitting assembly that is easy to maintain, characterized in that, include: First pipeline; The second pipe is connected to the first pipe; A connector is slidably disposed within the first pipe along the axial direction of the first pipe to switch between a first position and a second position; when the connector is in the first position, the connector is entirely located inside the first pipe; when the connector is in the second position, both ends of the connector are simultaneously located inside the first pipe and the second pipe, and the connector is sealed to both the first pipe and the second pipe. Multiple locking elements are provided. When the connector is in the second position, at least one locking element passes through both the first pipe and the connector, and at least one locking element passes through both the second pipe and the connector.

2. The easy-to-maintain pipe joint assembly according to claim 1, characterized in that, The first pipe is provided with a groove along the axial direction. The connector is provided with a handle and a fastener. The handle is fixed to the connector by the fastener and is located on the outer peripheral wall of the first pipe. One end of the fastener passes through the groove and slides along the groove.

3. The easy-to-maintain pipe joint assembly according to claim 2, characterized in that, The connector has a connecting boss on its peripheral wall, and the second pipe has a connecting groove at one end near the first pipe. When the connector is in the second position, the connecting boss slides along the groove into the connecting groove, and the connecting boss engages with the connecting groove.

4. The easy-to-maintain pipe fitting assembly according to claim 3, characterized in that, A plurality of first limiting blocks are provided on one side wall of the slide groove, and a first locking groove is formed between two adjacent first limiting blocks; a second limiting block is provided on the inner wall of the connecting groove, and a second locking groove is formed between the second limiting block and the bottom of the connecting groove. When the connector is in the second position, the fastener is set in the first snap-fit ​​groove, and the connecting boss is set in the second snap-fit ​​groove. The connector is rotated so that the connector drives the fastener and the connecting boss to be located in the first snap-fit ​​groove and the second snap-fit ​​groove respectively.

5. The easy-to-maintain pipe joint assembly according to claim 1, characterized in that, The first pipe and the second pipe are each provided with a first locking hole, and the connector is provided with at least two second locking holes along its length. When the connector is in the second position, the first lock hole and the second lock hole are arranged in a one-to-one correspondence, and the central axis of the first lock hole coincides with the central axis of the second lock hole. The locking member passes through both the first lock hole and the second lock hole to lock the connector.

6. The easy-to-maintain pipe fitting assembly according to claim 1, characterized in that, The connector assembly also includes multiple sealing rings, which are respectively disposed on the inner walls of the first pipe and the second pipe. When the connector is in the second position, the multiple sealing rings form a seal with the peripheral wall of the connector.

7. The easy-to-maintain pipe fitting assembly according to claim 1, characterized in that, The connector assembly also includes a dustproof component for shielding the gap between the first pipe and the second pipe.

8. The easy-to-maintain pipe fitting assembly according to claim 7, characterized in that, The dustproof component is installed at the connection between the first pipe and the second pipe, and the inner wall of the dustproof component is sealed to both the peripheral wall of the first pipe and the peripheral wall of the second pipe.

9. The easy-to-maintain pipe fitting assembly according to claim 7, characterized in that, The dustproof component is provided with a plug-in interface, and the dustproof component is arranged in a ring around one of the first pipe and the second pipe, while the other of the first pipe and the second pipe is inserted into the plug-in interface.

10. The easy-to-maintain pipe fitting assembly according to claim 1, characterized in that, One of the first pipe and the second pipe is provided with a protrusion, and the other of the first pipe and the second pipe is provided with a recess. When the first pipe and the second pipe are connected, the protrusion is inserted into the recess.

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