PPR water pipe connector

Abstract

The utility model discloses a PPR water pipe connector which comprises a first pipe body and a second pipe body, and the first pipe body and the second pipe body are fixedly connected through a connector. The connector comprises a connecting assembly and a fixing assembly, and the connecting assembly is arranged at the end of the first pipe body; the fixing assembly is arranged at the end of the second pipe body, and the fixing assembly is detachably connected with the connecting assembly. The annular sealing groove is formed in the sealing flange of the fixing assembly, the first sealing ring and the second sealing ring are arranged on the two sides of the inner wall of the annular sealing groove respectively, and the third sealing ring is arranged at the front end of the sealing ring of the connecting assembly, so that a multi-sealing structure is formed; by means of the design, the sealing performance of the connector is effectively improved, even if the connector is used for a long time or impacted by water flow, the stable sealing effect can be kept, and the leakage problem caused by deformation or loosening of the sealing ring is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of PPR pipes, in particular to a PPR water pipe joint. Background Art

[0002] As a preferred material for piping systems, PPR pipe's core advantage lies in its exceptional material properties—the toughness, strength, and excellent processing properties of copolymerized polypropylene. This material not only maintains excellent creep resistance in high-temperature environments but is also highly valued for its uniquely high transparency. Whether used in cold water systems or hot water circulation, PPR pipe, with its non-toxic, lightweight, pressure-resistant, and corrosion-resistant properties, has become a leader in modern building water supply and drainage systems and is gradually becoming a benchmark material for industry promotion.

[0003] However, in the actual application of PPR piping systems, the connection method between pipe fittings and metal parts, especially the traditional threaded connection, is often connected with sealing rings to enhance the sealing effect. However, the sealing rings are prone to aging and deformation after long-term service, resulting in a decrease in sealing performance or even loosening, thereby causing leakage risks. This not only damages the integrity of the PPR pipe, but also seriously affects the stable operation and service life of the piping system. Summary of the Invention

[0004] The purpose of the present invention is to provide a PPR water pipe joint to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A PPR water pipe joint comprises a first pipe body and a second pipe body, wherein the first pipe body and the second pipe body are fixedly connected via a connector; the connector comprises a connecting assembly and a fixing assembly, wherein the connecting assembly is arranged at the end of the first pipe body; the fixing assembly is arranged at the end of the second pipe body, wherein the fixing assembly and the connecting assembly are detachably connected.

[0007] Preferably, the fixing assembly includes an adapter tube, wherein one end of the adapter tube is fixedly connected to the second tube body; the adapter tube is provided with a sealing flange at one end away from the second tube body, wherein one end of the sealing flange is fixedly connected to the adapter tube; an annular sealing groove is provided at the front end of the sealing flange, wherein a first sealing ring and a second sealing ring are respectively provided on both sides of the inner wall of the annular sealing groove.

[0008] Preferably, two movable holes are symmetrically opened on the outer wall of the adapter tube, wherein a hinge seat is provided on the outer wall of the adapter tube near the movable hole; a positioning lock rod is provided on the hinge seat, wherein the positioning lock rod is movably connected to the hinge seat through a movable shaft; a locking head is provided on the top of the positioning lock rod, wherein the locking head passes through the movable hole and extends downward to the inside of the adapter tube.

[0009] Preferably, the connecting assembly includes a fastening nut, wherein the fastening nut is sleeved on the outer wall of the first tube body and is connected to the first tube body through a thread; a sealing ring is provided at one end of the fastening nut, wherein an avoidance groove is provided between the inner side of the sealing ring and the first tube body.

[0010] Preferably, the sealing ring is adapted to the annular sealing groove provided at the front end of the sealing flange, wherein the sealing ring is arranged in the annular sealing groove, and a third sealing ring is provided at the front end of the sealing ring.

[0011] Preferably, a connecting portion is provided at the front end of the first tube body, wherein the connecting portion is arranged in the inner cavity of the adapter tube and connected thereto; a limiting groove is provided on the outer wall ring of the connecting portion, wherein the limiting groove is adapted to the lock head of the positioning lock rod provided on the outer wall of the adapter tube.

[0012] Compared with the prior art, the present invention has the following beneficial effects: the present invention forms a multiple sealing structure by arranging an annular sealing groove on the sealing flange of the fixed component, and arranging a first sealing ring and a second sealing ring on both sides of the inner wall thereof, and a third sealing ring arranged at the front end of the sealing ring of the connecting component; this design effectively improves the sealing performance of the joint, and can maintain a stable sealing effect even under long-term use or water flow impact, and prevents leakage problems caused by deformation or loosening of the sealing ring; by utilizing the design of the movable hole, hinged seat, positioning lock rod and lock head on the outer wall of the adapter tube, the second sealing ring is connected with the second sealing ring to form a plurality of sealing structures; the present invention effectively improves the sealing performance of the joint, and can maintain a stable sealing effect even under long-term use or water flow impact, and prevents leakage problems caused by deformation or loosening of the sealing ring; The limiting grooves on the connecting part of the pipe body cooperate with each other to realize the detachable locking fixation of the joint. This mechanism not only simplifies the installation process, but also greatly enhances the vibration resistance of the joint under the impact of water flow, effectively prevents the problem of loose threads caused by vibration, and ensures the long-term stable connection of the PPR water pipe joint; the fastening nut is connected to the second pipe body through a threaded connection, combined with the adaptive design of the sealing ring and the annular sealing groove, making the connection process more convenient and reliable; at the same time, the setting of the avoidance groove may help to alleviate the stress concentration caused by the threaded connection, further improving the overall strength and durability of the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a structural diagram of the fixing assembly of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the sealing flange of the utility model;

[0016] Figure 4 This is a structural diagram of the adapter tube of the utility model;

[0017] Figure 5 This is a structural diagram of the positioning lock rod of the utility model;

[0018] Figure 6 It is a structural diagram of the connection assembly of the utility model;

[0019] Figure 7 It is a structural schematic diagram of the front end of the second tube body of the utility model.

[0020] Among them: 1. First tube body; 2. Second tube body; 3. Connector; 301. Connecting assembly; 3011. Fastening nut; 3012. Sealing ring; 3013. Avoidance groove; 3014. Third sealing ring; 302. Fixing assembly; 3021. Adapter tube; 3022. Sealing flange; 3023. Annular sealing groove; 3024. First sealing ring; 3025. Second sealing ring; 4. Movable hole; 5. Articulated seat; 6. Positioning lock rod; 7. Lock head; 8. Limiting groove. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below with reference to the accompanying drawings.

[0022] Please refer to Figures 1 to 7 To achieve the above objectives, the present invention provides the following technical solutions:

[0023] A PPR water pipe joint includes a first pipe body 1 and a second pipe body 2, wherein the first pipe body 1 and the second pipe body 2 are fixedly connected via a connector 3; the connector 3 includes a connecting component 301 and a fixing component 302, wherein the connecting component 301 is arranged at the end of the first pipe body 1; the fixing component 302 is arranged at the end of the second pipe body 2, wherein the fixing component 302 and the connecting component 301 are detachably connected.

[0024] The connector 3 is a key component for connecting the first tube body 1 and the second tube body 2. The connector 3 consists of a connecting component 301 and a fixing component 302. The connecting component 301 is installed at the end of the first tube body 1 and is responsible for cooperating with the fixing component 302 to achieve preliminary positioning and docking of the two. The fixing component 302 is installed at the end of the second tube body 2 and corresponds to the connecting component 301. The two tube bodies are firmly connected together through a detachable connection method. The first tube body 1 with the connecting component 301 is brought close to the second tube body 2 with the fixing component 302 to achieve preliminary docking. At this time, the specific designs of the connecting component 301 and the fixing component 302 will begin to interact with each other, providing a basis for subsequent fastening. By rotating, pressing or other means, the connecting component 301 and the fixing component 302 are further fastened together to ensure that the connection between the two pipe bodies is firm and reliable; the connector 3 and its components are designed to be detachable. This design allows the connector to be easily disassembled and reassembled when maintenance, replacement or adjustment of the pipeline layout is required without damaging the pipeline itself; the water pipe connector can reliably connect two sections of PPR water pipes together while ensuring the sealing and detachability of the connection; it effectively improves the sealing performance of the connector, and maintains a stable sealing effect even under long-term use or water flow impact, preventing leakage problems caused by deformation or loosening of the sealing ring, thereby improving the overall performance and reliability of the PPR water pipe connector.

[0025] Please refer to Figures 2 to 4 As an embodiment of the present invention, the fixing assembly 302 includes an adapter tube 3021, wherein one end of the adapter tube 3021 is fixedly connected to the second tube body 2; a sealing flange 3022 is provided at the end of the adapter tube 3021 away from the second tube body 2, wherein one end of the sealing flange 3022 is fixedly connected to the adapter tube 3021; an annular sealing groove 3023 is provided at the front end of the sealing flange 3022, wherein a first sealing ring 3024 and a second sealing ring 3025 are respectively provided on both sides of the inner wall of the annular sealing groove 3023.

[0026] In the above-described scheme, the adapter tube 3021 serves as the main part of the fixing assembly 302, and one end of the adapter tube 3021 needs to be precisely fixedly connected to the second tube body 2. This connection is achieved by hot-melt welding, threaded fastening or other reliable mechanical connection methods to ensure the firmness and sealing between the two; the installation position of the adapter tube 3021 needs to be precisely aligned to ensure that its connection with the second tube body 2 is both stable and meets the design requirements, laying the foundation for subsequent connection work; the adapter tube 3021 is provided with a sealing flange 3022 at one end away from the first tube body 1, wherein one end of the sealing flange 3022 is fixedly connected to the adapter tube 3021, and this connection also needs to ensure firmness and sealing to prevent fluid leakage from the connection; the design of the sealing flange 3022 generally takes into account the needs of easy installation and disassembly, while ensuring that it has sufficient strength and rigidity to withstand various forces and moments generated during the operation of the pipeline system.

[0027] Furthermore, an annular sealing groove 3023 is opened at the front end of the sealing flange 3022, wherein the shape and size of the annular sealing groove 3023 need to be precisely designed to ensure close fit with the subsequently installed sealing ring 3012 to form an effective sealing structure; a first sealing ring 3024 and a second sealing ring 3025 are respectively provided on both sides of the inner wall of the annular sealing groove 3023, wherein the first sealing ring 3024 and the second sealing ring 3025 are generally made of a material with good elasticity and corrosion resistance, such as rubber or silicone, which are placed in the sealing groove. When the first tube body 1 with the connecting component 301 is docked with the fixing component 302, the first sealing ring 3024 and the second sealing ring 3025 will be compressed and deformed, thereby filling the small gap between the sealing groove and the connecting component 301 to achieve a reliable sealing effect; by providing the first sealing ring 3024 and the second sealing ring 3025, a multiple sealing mechanism is formed. This design greatly improves the sealing performance of the PPR water pipe joint, thereby ensuring that the PPR water pipe joint achieves a reliable sealing effect during the connection process, preventing fluid leakage and ensuring the normal operation of the pipeline system.

[0028] Please refer to Figure 4 、 Figure 5 As an embodiment of the present utility model, two movable holes 4 are symmetrically opened on the outer wall of the adapter tube 3021, wherein a hinge seat 5 is provided on the outer wall of the adapter tube 3021 near the movable hole 4; a positioning lock rod 6 is provided on the hinge seat 5, wherein the positioning lock rod 6 is movably connected to the hinge seat 5 through a movable shaft; a lock head 7 is provided on the top of the positioning lock rod 6, wherein the lock head 7 passes through the movable hole 4 and extends downward to the inside of the adapter tube 3021.

[0029] In the above-mentioned scheme, two movable holes 4 are symmetrically opened on the outer wall of the adapter tube 3021. The design of these movable holes 4 allows flexible installation and operation of the positioning lock rod 6, wherein the position and size of the movable hole 4 need to be precisely controlled to ensure a close fit with the positioning lock rod 6; an articulated seat 5 is provided on the outer wall of the adapter tube 3021 near the movable hole 4, wherein the articulated seat 5 serves as the connection base of the positioning lock rod 6 and realizes an active connection with the positioning lock rod 6 through an active shaft. This design enables the positioning lock rod 6 to rotate freely within a certain range to adapt to different connection requirements; the positioning lock rod 6 is movably connected to the articulated seat 5 through the active shaft, which means This means that the positioning locking rod 6 can rotate around the movable axis with the support of the hinged seat 5. This design allows the locking rod to be in an unlocked state when not needed, which is convenient for installation and disassembly; when needed, the locking function can be achieved by rotating the locking rod; a locking head 7 is provided at the top of the positioning locking rod 6, wherein the design of the locking head 7 enables it to pass through the movable hole 4 and extend downward to the inside of the adapter tube 3021. When the locking head 7 enters the inside of the adapter tube 3021, it can cooperate with the connecting part of the first tube body 1, thereby locking the PPR water pipe joint. This locking mechanism can effectively prevent the PPR water pipe joint from loosening or falling off when subjected to external force.

[0030] Please refer to Figure 6 、 Figure 7 As an embodiment of the present invention, the connecting assembly 301 includes a fastening nut 3011, wherein the fastening nut 3011 is sleeved on the outer wall of the first tube body 1 and is connected to the first tube body 1 through a thread; a sealing ring 3012 is provided at one end of the fastening nut 3011, wherein an avoidance groove 3013 is provided between the inner side of the sealing ring 3012 and the first tube body 1; the sealing ring 3012 is adapted to the annular sealing groove 3023 opened at the front end of the sealing flange 3022, wherein the sealing ring 3012 is arranged in the annular sealing groove 3023, and a third sealing ring 3014 is provided at the front end of the sealing ring 3012.

[0031] In the above scheme, the fastening nut 3011 is the core component of the connecting component 301, wherein the fastening nut 3011 is sleeved on the outer wall of the first tube body 1 and is tightly connected to the first tube body 1 through a thread. This connection method is simple and reliable, and the first tube body 1 can be easily fastened or loosened by rotating the fastening nut 3011; the installation position of the fastening nut 3011 needs to be precisely controlled to ensure that it can correctly dock with the sealing flange 3022 in the fixing component 302 and form an effective sealing structure; a sealing ring 3012 is provided at one end of the fastening nut 3011, wherein an avoidance groove 3013 is provided between the inner side of the sealing ring 3012 and the first tube body 1, and the avoidance groove 3013 is designed to provide sufficient space for the sealing ring 3012 to avoid interference with the first tube body 1 during the rotation of the fastening nut 3011, thereby ensuring that the sealing ring 3012 can smoothly enter and fill the annular sealing groove 3023 on the sealing flange 3022; the sealing ring 3012 The design needs to be compatible with the annular sealing groove 3023 opened at the front end of the sealing flange 3022, which means that the shape, size and material of the sealing ring 3012 need to be carefully designed and selected to ensure that it can be tightly embedded in the annular sealing groove 3023 to form a reliable sealing effect; a third sealing ring 3014 is provided at the front end of the sealing ring 3012, wherein the third sealing ring 3014 serves as an additional sealing layer to further enhance the sealing performance of the joint. The third sealing ring 3014 is usually made of a material with good elasticity and corrosion resistance, such as rubber or silicone, to ensure that a stable sealing effect is maintained when subjected to pressure or temperature changes; when the fastening nut 3011 is tightened, the sealing ring 3012 and the third sealing ring 3014 are compressed and deformed at the same time. This deformation enables the sealing ring 3012 and the third sealing ring 3014 to fit tightly on the inner wall of the annular sealing groove 3023, filling any tiny gaps or unevenness, thereby achieving complete sealing of the joint.

[0032] See also Figure 7 As an embodiment of the present utility model, a connecting portion is provided at the front end of the first tube body 1, wherein the connecting portion is arranged in the inner cavity of the adapter tube 3021 and connected thereto; a limiting groove 8 is provided on the outer wall ring of the connecting portion, wherein the limiting groove 8 is adapted to the locking head 7 of the positioning locking rod 6 provided on the outer wall of the adapter tube 3021.

[0033] In the above-mentioned scheme, a connecting portion is provided at the front end of the first tube body 1, wherein the connecting portion is designed and placed in the inner cavity of the adapter tube 3021 to achieve a tight connection between the two; a limiting groove 8 is provided on the outer wall ring of the connecting portion, and this groove has a specific shape and size, which is used to adapt to the positioning lock rod 6 and the lock head 7 on the outer wall of the adapter tube 3021; the main function of the connecting portion is to serve as a connecting bridge between the first tube body 1 and the adapter tube 3021, ensuring that the two can be stably and firmly combined together during the connection process; the design of the limiting groove 8 further enhances the stability and reliability of the connection, and by cooperating with the lock head 7 of the positioning lock rod 6, the connecting portion is prevented from relative movement or rotation in the adapter tube 3021; the outer wall of the adapter tube 3021 is symmetrically provided with two A movable hole 4 is provided, and a hinge seat 5 is provided near the movable hole 4. The positioning locking rod 6 is movably connected to the hinge seat 5 through a movable shaft; a locking head 7 is provided at the top of the positioning locking rod 6, which can pass through the movable hole 4 and extend downward to the inside of the adapter tube 3021, and adapt to the limiting groove 8 on the outer wall of the connecting part; when the connecting part of the first tube body 1 is inserted into the inner cavity of the adapter tube 3021 and is initially positioned with the adapter tube 3021, the locking head 7 of the positioning locking rod 6 will be pushed into or rotated into the limiting groove 8 of the connecting part; once the locking head 7 completely enters the limiting groove 8 and fits tightly with it, the positioning locking rod 6 will firmly lock the connecting part in the adapter tube 3021, thereby realizing a stable connection between the first tube body 1 and the adapter tube 3021, providing a strong guarantee for the normal operation of the pipeline system.

[0034] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A PPR water pipe joint, comprising a first pipe body (1) and a second pipe body (2), wherein the first pipe body (1) and the second pipe body (2) are fixedly connected via a connector (3); characterized in that: The connector (3) comprises a connecting assembly (301) and a fixing assembly (302), wherein the connecting assembly (301) is arranged at the end of the first tube body (1); the fixing assembly (302) is arranged at the end of the second tube body (2), wherein the fixing assembly (302) and the connecting assembly (301) are detachably connected; the fixing assembly (302) comprises a switching tube (3021), wherein one end of the switching tube (3021) is fixedly connected to the second tube body (2); the end of the switching tube (3021) away from the second tube body (2) is provided with a sealing flange (3022), wherein one end of the sealing flange (3022) is connected to the switching tube ( 3021) fixedly connected; an annular sealing groove (3023) is provided at the front end of the sealing flange (3022), wherein a first sealing ring (3024) and a second sealing ring (3025) are respectively provided on both sides of the inner wall of the annular sealing groove (3023); the connecting assembly (301) comprises a fastening nut (3011), wherein the fastening nut (3011) is sleeved on the outer wall of the first tube body (1) and is connected to the first tube body (1) through a thread; a sealing ring (3012) is provided at one end of the fastening nut (3011), wherein an avoidance groove (3013) is provided between the inner side of the sealing ring (3012) and the first tube body (1).

2. A PPR water pipe joint according to claim 1, characterized in that: Two movable holes (4) are symmetrically provided on the outer wall of the adapter tube (3021), wherein a hinge seat (5) is provided on the outer wall of the adapter tube (3021) near the movable hole (4), and a positioning lock rod (6) is provided on the hinge seat (5), wherein the positioning lock rod (6) is movably connected to the hinge seat (5) via a movable shaft.

3. A PPR water pipe joint according to claim 2, characterized in that: A locking head (7) is provided at the top end of the positioning locking rod (6), wherein the locking head (7) passes through the movable hole (4) and extends downward to the interior of the adapter tube (3021).

4. A PPR water pipe joint according to claim 1, characterized in that: The sealing ring (3012) is adapted to the annular sealing groove (3023) provided at the front end of the sealing flange (3022), wherein the sealing ring (3012) is arranged in the annular sealing groove (3023), and a third sealing ring (3014) is provided at the front end of the sealing ring (3012).

5. A PPR water pipe joint according to claim 1, characterized in that: The front end of the first tube body (1) is provided with a connecting portion, wherein the connecting portion is arranged in the inner cavity of the adapter tube (3021) and connected thereto.

6. A PPR water pipe joint according to claim 5, characterized in that: The outer wall of the connecting portion is provided with a limiting groove (8), wherein the limiting groove (8) is adapted to the locking head (7) of the positioning locking rod (6) provided on the outer wall of the adapter cylinder (3021).

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