Embedded compression-resistant seepage-proof PPR cold and hot water pipe convenient to connect
By using the threaded connection and embedded design of the quick-connect fitting and locking assembly, the problem of complex and leak-prone traditional PPR hot and cold water pipe connections is solved, achieving a convenient, secure and sealed connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional PPR hot and cold water pipe connection methods require specialized equipment, are complex to operate, and are prone to poor welding or over-welding, leading to water leakage at the connection.
The design employs quick-connect fittings and locking components, using threaded connections and an embedded structure combined with a sealing ring to achieve convenient connection and secure fixation of pipes, preventing loosening and leakage.
It simplifies the construction process, improves the strength and sealing of the connection, reduces the risk of leakage, and enhances the pressure resistance and seepage prevention performance.
Smart Images
Figure CN224093982U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline structure technology, specifically to an embedded pressure-resistant and leak-proof PPR hot and cold water pipe that is easy to connect. Background Technology
[0002] PPR hot and cold water pipes are widely used in building water supply and drainage systems and domestic water piping systems due to their excellent chemical corrosion resistance, non-toxicity, hygiene, light weight, and ease of processing and installation. Traditionally, PPR hot and cold water pipes are connected using heat fusion. However, this connection method has certain limitations. For example, heat fusion requires specialized equipment and demands a high level of skill from the operators. Improper control of the heat fusion temperature and time can easily lead to problems such as incomplete welding or over-welding at the joint, affecting the strength and sealing of the connection and ultimately causing leaks. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides an easy-to-connect embedded pressure-resistant and leak-proof PPR hot and cold water pipe, which solves the technical problem of easy leakage at the connection of existing hot and cold water pipes.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an embedded pressure-resistant and seepage-proof PPR hot and cold water pipe that is easy to connect, including a pipe one and a pipe two, wherein the pipe one and the pipe two are inserted and fixed together, a quick connector is sleeved on the pipe one, the quick connector is threadedly connected to the pipe two, and a locking component is fixed on the outside of the pipe two to restrict the quick connector from generating rotational movement.
[0005] The locking assembly includes an external protrusion fixed to the second pipe. A spring is fixed to one side of the external protrusion. A movable ring sleeved on the second pipe is fixed to one end of the spring. At least two symmetrically arranged locking blocks are fixed to the side wall of the movable ring facing the quick connector. The locking blocks are inserted into the locking holes opened at the end of the quick connector.
[0006] Preferably, the outer wall of the pipe is provided with a groove, and the inner wall of the quick connector is fixed with an inner protrusion located in the groove.
[0007] Preferably, the inner side of one end of the pipe is provided with an embedded groove, and one end of the second pipe is provided with an embedded part that is inserted into the embedded groove.
[0008] Preferably, a sealing ring is fixedly provided on one end of the pipe and on the inner wall of the embedded groove.
[0009] Preferably, the inner wall of the quick connector is provided with an internal thread, and the outer walls of the two ends of the pipe are provided with external threads that are compatible with the internal thread.
[0010] Preferably, the quick connector has a hexagonal groove on its outer wall.
[0011] By employing the above technical solution, this utility model provides an easily connectable embedded pressure-resistant and leak-proof PPR hot and cold water pipe, which has at least the following beneficial effects:
[0012] 1. This easy-to-connect embedded pressure-resistant and leak-proof PPR hot and cold water pipe features quick-connect fittings and locking components. The quick-connect fittings allow for threaded connection between pipe one and pipe two, while the locking components ensure the quick-connect fittings remain tightened, preventing leaks caused by loosening. Compared to heat fusion connections, this method eliminates the need for traditional heat fusion tools, reducing construction time and difficulty. The connection is also strong, has good sealing properties, and is less prone to leaks.
[0013] 2. This easy-to-connect embedded pressure-resistant and seepage-proof PPR hot and cold water pipe features an embedded groove and embedded part. The connection between pipe one and pipe two adopts an embedded structural design, which makes the connection more convenient and firm, while enhancing the pipe's pressure resistance and seepage prevention performance.
[0014] 3. This easy-to-connect embedded pressure-resistant and leak-proof PPR hot and cold water pipe can further improve its connection sealing performance by setting a sealing ring, thereby avoiding water leakage problems. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:
[0016] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0017] Figure 2 This is a three-dimensional structural schematic diagram of the overall cross-section of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of one end of the pipe of this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the quick connector of this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the two ends of the pipe of this utility model.
[0021] Figure label:
[0022] 1. Pipe 1; 101. Groove; 102. Embedded groove; 103. Sealing ring; 2. Pipe 2; 201. Embedded part; 202. External thread; 3. Quick connector; 301. Inner protrusion; 302. Hexagonal groove; 303. Internal thread; 304. Locking hole; 4. Locking assembly; 401. Outer protrusion; 402. Spring; 403. Moving ring; 404. Locking block. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Hot and cold water pipes are used to transport cold and hot water and are widely used in home decoration, building water supply and drainage systems and other fields.
[0025] Due to the inherent technical flaws of existing technologies, such as the tendency for water to leak at the joints, please refer to... Figures 1-5 This embodiment provides an easy-to-connect embedded pressure-resistant and leak-proof PPR hot and cold water pipe that eliminates the need for traditional heat fusion connection tools, reducing construction time and difficulty. It also provides a strong connection, good sealing, and is less prone to leakage. The hot and cold water pipe includes a first pipe 1 and a second pipe 2, which are fixed together by insertion. A quick connector 3 is fitted onto the first pipe 1 and threadedly connected to the second pipe 2. A locking component 4 is fixed to the outside of the second pipe 2 to restrict the rotational movement of the quick connector 3. During connection, align the ends of the first pipe 1 and the second pipe 2, and then tighten the quick connector 3 to gradually insert the second pipe 2 into the first pipe 1 until the first pipe 1 and the second pipe 2 are fully connected.
[0026] Because quick coupling 3 uses a threaded connection to connect pipe 1 and pipe 2, it is prone to loosening after prolonged use. This can lead to a loose connection between pipe 1 and pipe 2, causing leaks. For this issue, please refer to [link / reference needed]. Figure 4 The locking assembly 4 includes an external protrusion 401 fixed to the second pipe 2. A spring 402 is fixed to one side of the external protrusion 401. A movable ring 403 sleeved on the second pipe 2 is fixed to one end of the spring 402. At least two symmetrically arranged locking blocks 403 are fixed on the side wall of the movable ring 403 facing the quick connector 3. The locking blocks 403 are inserted into the locking holes 304 opened at the end of the quick connector 3. When the quick connector 3 is fully tightened, the movable ring 403 can be pushed to move under the elastic force of the spring 402. The locking blocks 403 on the movable ring 403 can be locked into the locking holes 304 at the end of the quick connector 3 to lock the quick connector 3 and prevent the quick connector 3 from loosening.
[0027] Furthermore, a groove 101 is provided on the outer wall of the pipe 1, and an inner protrusion 301 is fixed on the inner wall of the quick connector 3 within the groove 101; through the setting of the groove 101, the quick connector 3 can be restricted on the pipe 1 under the action of the inner protrusion 301.
[0028] Furthermore, an embedded groove 102 is provided on the inner side of the end of pipe 1, and an embedded part 201 is provided at one end of pipe 2 that is inserted into the embedded groove 102; the connection between pipe 1 and pipe 2 adopts an embedded structural design, which makes the connection more convenient and firm, and at the same time enhances the pressure resistance and seepage prevention performance of the pipe; and a sealing ring 103 is fixed on the end of pipe 1 and the inner wall of the embedded groove 102; by setting the sealing ring 103, the connection sealing performance can be further improved, thereby avoiding water leakage problems.
[0029] Furthermore, the quick connector 3 has an internal thread 303 on its inner wall, and the outer wall of the end of the second pipe 2 has an external thread 202 that matches the internal thread 303. Under the action of the quick connector 3, the first pipe 1 and the second pipe 2 can be connected by threaded connection. Compared with the heat fusion connection method, there is no need for traditional heat fusion connection tools, which reduces construction time and difficulty.
[0030] When rotating the quick connector 3, the outer wall of the quick connector 3 is smooth, which can cause slippage when using tools such as wrenches. Therefore, a hexagonal groove 302 is provided on the outer wall of the quick connector 3. The hexagonal groove 302 can be used with a wrench to facilitate turning the quick connector 3.
[0031] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An easily connected, embedded, pressure-resistant, and leak-proof PPR hot and cold water pipe, comprising pipe one (1) and pipe two (2), characterized in that: The pipe one (1) and the pipe two (2) are connected and fixed together. A quick connector (3) is fitted on the pipe one (1). The quick connector (3) is threadedly connected to the pipe two (2). A locking component (4) is fixed on the outside of the pipe two (2) to limit the rotational movement tendency of the quick connector (3). The locking assembly (4) includes an external protrusion (401) fixed to the second pipe (2), a spring (402) fixed to one side of the external protrusion (401), a movable ring (403) sleeved on the second pipe (2) fixed to one end of the spring (402), and at least two symmetrically arranged locking blocks (404) fixed on the side wall of the movable ring (403) facing the quick connector (3), and the locking blocks (404) are inserted into the locking hole (304) opened at the end of the quick connector (3).
2. The easily connectable embedded pressure-resistant and leak-proof PPR hot and cold water pipe according to claim 1, characterized in that: The outer wall of the pipe (1) is provided with a groove (101), and the inner wall of the quick connector (3) is fixed with an inner protrusion (301) located in the groove (101).
3. The easily connectable embedded pressure-resistant and leak-proof PPR hot and cold water pipe according to claim 1, characterized in that: The inner side of the end of the first pipe (1) is provided with an embedded groove (102), and one end of the second pipe (2) is provided with an embedded part (201) inserted into the embedded groove (102).
4. The easily connectable embedded pressure-resistant and leak-proof PPR hot and cold water pipe according to claim 3, characterized in that: A sealing ring (103) is fixed on both the end of the pipe (1) and the inner wall of the inner groove (102).
5. The easily connectable embedded pressure-resistant and leak-proof PPR hot and cold water pipe according to claim 1, characterized in that: The inner wall of the quick connector (3) is provided with an internal thread (303), and the outer wall of the end of the pipe (2) is provided with an external thread (202) that is compatible with the internal thread (303).
6. The easily connectable embedded pressure-resistant and leak-proof PPR hot and cold water pipe according to claim 1, characterized in that: The quick connector (3) has a hexagonal groove (302) on its outer wall.