Composite faucet pipeline

Abstract

The utility model relates to the field of pipelines, and discloses a composite faucet pipeline which comprises a protective outer pipe, a soft inner pipe is inserted into the protective outer pipe in a sliding mode, a first connector is detachably arranged at one end of the protective outer pipe, and a second connector is detachably arranged at the end, away from the first connector, of the soft inner pipe. A rotating groove is formed in the end, close to the protective outer pipe, of the first connector and rotationally inserted into the surface of one end of the protective outer pipe. A connecting pipe is fixed to the end, close to the soft inner pipe, of the second connector and is in interference fit with the soft inner pipe. According to the utility model, the safety of the flexible inner pipe during working is improved by utilizing the protective outer pipe, and the service life of the flexible inner pipe is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of pipes, specifically a composite faucet pipe. Background Technology

[0002] A faucet is a common name for a water valve, used to control the flow of water and thus saving water. Faucets have evolved rapidly, from old-fashioned cast iron faucets to electroplated knob faucets, and then to stainless steel single-temperature single-control faucets, stainless steel dual-temperature dual-control faucets, and semi-automatic kitchen faucets. When using a faucet, depending on the needs, sometimes a pipe connection is required. Currently, the main pipe connection for faucets on the market is a threaded connection, with male and female threads fitting together.

[0003] According to Chinese patent CN220706525U, the invention includes a faucet body and a valve core seat. The outer wall of the valve core seat is threaded with a pipe thread, and the outer wall of the pipe thread is fitted with a first flat washer and a second flat washer. The bottom of the outer wall of the pipe thread is threaded with a sleeve. The valve core seat is installed inside the faucet body, and a valve core is installed at the top of the valve core seat. Two copper inserts are fixedly installed at the bottom of the valve core seat. The bottom end of the valve core seat passes through the sleeve and extends to the outside of the faucet body. A water inlet pipe is symmetrically installed at the bottom of the valve core seat. A flat part is opened at the bottom of the outer wall of the valve core seat. A square plug is installed inside the valve core seat through the flat part, and one end of the square plug is adapted to the top of the water inlet pipe.

[0004] In the above solution, a square plug is used to limit the water inlet pipe, which still has the following disadvantages: the water inlet pipe is used in a relatively humid environment, which is prone to the breeding of insects such as cockroaches. The excrement of these insects may cause corrosion of the water inlet pipe, reduce the safety of the water inlet pipe during use, and shorten the service life of the water inlet pipe. Utility Model Content

[0005] The purpose of this utility model is to provide a composite faucet pipe to solve the problem that the water inlet pipe is used in a humid environment, which is prone to the breeding of insects such as cockroaches. The excrement of these insects may cause corrosion of the water inlet pipe, reduce the safety of the water inlet pipe during use, and shorten the service life of the water inlet pipe.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a composite faucet pipe, including a protective outer tube, a flexible inner tube slidably inserted inside the protective outer tube, a first connector detachably provided at one end of the protective outer tube, and a second connector detachably provided at the end of the flexible inner tube away from the first connector. A rotating groove is formed at the end of the first connector near the protective outer tube, and the rotating groove is rotatably inserted into the surface of one end of the protective outer tube. A connecting pipe is fixed at the end of the second connector near the flexible inner tube, and the connecting pipe and the flexible inner tube are interference-fitted. A sealing ring is slidably inserted at the end of the flexible inner tube near the first connector, and a pressing ring is slidably inserted at the end of the flexible inner tube near the first connector, the pressing ring being slidably disposed between the first connector and the sealing ring.

[0007] Preferably, the inner wall of the rotating groove is fixed with a positioning internal thread, and the surface of the protective outer tube is provided with an external thread groove, wherein the positioning internal thread is threadedly connected to the external thread groove.

[0008] Preferably, a rotating groove is provided at one end of the rotating groove, and an internal thread groove is provided on the inner wall surface of the rotating groove. An external thread strip is provided on the surface of one end of the flexible inner tube, and the internal thread groove is threadedly connected to the external thread strip.

[0009] Preferably, a connecting hole is provided at one end of the interior of the rotating groove.

[0010] Compared with existing technologies, a composite faucet pipe using the above-mentioned technical solution has the following beneficial effects:

[0011] 1. The outer protective tube is made of random copolymer polypropylene, and the inner flexible tube is made of polyvinyl chloride. A certain amount of plasticizer is added during the manufacturing process of the inner flexible tube to increase its flexibility. When the inner flexible tube is used in drinking water, machinery and equipment, wiring and other fields, the outer protective tube increases the safety of the inner flexible tube during operation and extends its service life because the inner flexible tube is protected by the outer protective tube.

[0012] 2. When the worker rotates and installs the first connector at one end of the protective outer tube, the positioning internal thread on the inner wall of the rotating groove will be fixed at one end of the protective outer tube through the threaded connection with the external thread groove. At this time, the external thread strip will be screwed into the interior of the internal thread groove. Then the worker can wrap a layer of Teflon tape around the connecting pipe and then press it into the interior of the flexible inner tube to increase the convenience of installation of the protective outer tube and the flexible inner tube.

[0013] 3. When the worker installs the first connector at one end of the flexible inner tube, the worker will first put the sealing ring and the pressing ring on the flexible inner tube in sequence, and then install the first connector. This will push the pressing ring to press on the sealing ring, thereby increasing the sealing between the first connector and the flexible inner tube. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0015] Figure 2 This is an exploded three-dimensional schematic diagram of an embodiment.

[0016] Figure 3 This is a cross-sectional schematic diagram of an embodiment.

[0017] Figure 4 This is a split cross-sectional view of an embodiment.

[0018] In the diagram: 1. Protective outer tube; 2. Flexible inner tube; 3. First connector; 4. Second connector; 5. Rotating groove; 6. Positioning internal thread; 7. External thread groove; 8. Internal thread groove; 9. External thread strip; 10. Sealing ring; 11. Pressing ring; 12. Connecting tube; 13. Rotating groove; 14. Connecting hole. Detailed Implementation

[0019] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] like Figures 1-4 As shown, a composite faucet pipe includes a protective outer tube 1, a flexible inner tube 2 slidably inserted inside the protective outer tube 1, a first connector 3 detachably provided at one end of the protective outer tube 1, a second connector 4 detachably provided at the end of the flexible inner tube 2 away from the first connector 3, a rotating groove 5 opened at the end of the first connector 3 near the protective outer tube 1, the rotating groove 5 being rotatably inserted into the surface of one end of the protective outer tube 1, a positioning internal thread 6 fixed on the inner wall of the rotating groove 5, an external thread groove 7 opened on the surface of the protective outer tube 1, and the positioning internal thread 6 being threadedly connected to the external thread groove 7.

[0021] In use, the outer protective tube 1 is made of random copolymer polypropylene, and the flexible inner tube 2 is made of polyvinyl chloride. A certain amount of plasticizer is added to the flexible inner tube 2 during its manufacturing process to increase its flexibility. When the flexible inner tube 2 is used in drinking water, machinery and equipment, wiring and other fields, the outer protective tube 1 protects the flexible inner tube 2, thus increasing its safety during operation and extending its service life.

[0022] like Figures 2-4As shown, a rotating groove 13 is provided at one end of the rotating groove 5, and an internal thread groove 8 is provided on the inner wall surface of the rotating groove 13. An external thread strip 9 is provided on the surface of one end of the flexible inner tube 2. The internal thread groove 8 and the external thread strip 9 are threadedly connected. A connecting pipe 12 is fixed at one end of the second connector 4 near the flexible inner tube 2. The connecting pipe 12 and the flexible inner tube 2 are interference-fitted.

[0023] During use, when the operator rotates and installs the first connector 3 at one end of the protective outer tube 1, the positioning internal thread 6 on the inner wall of the rotating groove 5 will be fixed to one end of the protective outer tube 1 through the threaded connection with the external thread groove 7. At this time, the external thread strip 9 will be screwed into the interior of the internal thread groove 8. Then, the operator can wrap a layer of PTFE tape around the connecting tube 12 and then press it into the interior of the flexible inner tube 2, which will increase the convenience of installation of the protective outer tube 1 and the flexible inner tube 2.

[0024] like Figure 3 and Figure 4 As shown, a sealing ring 10 is slidably inserted into one end of the flexible inner tube 2 near the first connector 3, and a pressing ring 11 is slidably inserted into one end of the flexible inner tube 2 near the first connector 3. The pressing ring 11 is slidably disposed between the first connector 3 and the sealing ring 10. A connecting hole 14 is opened at one end of the interior of the rotating groove 13.

[0025] In use, when the operator installs the first connector 3 at one end of the flexible inner tube 2, the operator will first put the sealing ring 10 and the pressing ring 11 on the flexible inner tube 2 in sequence, and then install the first connector 3. This will push the pressing ring 11 to press on the sealing ring 10, thereby increasing the sealing between the first connector 3 and the flexible inner tube 2.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A composite faucet pipe, comprising a protective outer pipe (1), characterized in that, The protective outer tube (1) is slidably inserted with a flexible inner tube (2). One end of the protective outer tube (1) is detachably provided with a first connector (3). The end of the flexible inner tube (2) away from the first connector (3) is detachably provided with a second connector (4). The end of the first connector (3) near the protective outer tube (1) is provided with a rotating groove (5). The rotating groove (5) is rotatably inserted into the surface of one end of the protective outer tube (1). The end of the second connector (4) near the flexible inner tube (2) is fixed with a connecting tube (12). The connecting tube (12) is interference-fitted with the flexible inner tube (2). The end of the flexible inner tube (2) near the first connector (3) is slidably inserted with a sealing ring (10). The end of the flexible inner tube (2) near the first connector (3) is slidably inserted with a pressing ring (11). The pressing ring (11) is slidably disposed between the first connector (3) and the sealing ring (10).

2. The composite faucet pipe according to claim 1, characterized in that: The inner wall of the rotating groove (5) is fixed with a positioning internal thread (6), and the surface of the protective outer tube (1) is provided with an external thread groove (7). The positioning internal thread (6) is threadedly connected to the external thread groove (7).

3. The composite faucet pipe according to claim 1, characterized in that: The rotating groove (5) has a rotating groove (13) at one end, and the inner wall of the rotating groove (13) has an internal thread groove (8). The surface of one end of the flexible inner tube (2) is provided with an external thread strip (9), and the internal thread groove (8) is threadedly connected to the external thread strip (9).

4. A composite faucet pipe according to claim 3, characterized in that: A connecting hole (14) is provided at one end of the interior of the rotating groove (13).

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