Quick coupling plastic water pipe

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a quick coupling plastic water pipe which comprises an outer pipe, a hollow turncap, a column pipe and a central pipe, two column-shaped grooves A and flow guide channels communicated with the column-shaped grooves A on the two sides are symmetrically formed in the outer pipe, a plurality of water guide pipes are arranged on the bottom faces of the column-shaped grooves A, and annular plates are arranged on the water guide pipes; the hollow turncap is inserted into the cylindrical groove A and is spirally connected with the cylindrical groove A; the column pipe is arranged in the column-shaped groove A in a sliding manner and is rotationally connected with the hollow turncap; a column-shaped groove B and a flow guide hole which are communicated with each other are formed in the column pipe; the central pipe is coaxially arranged on the bottom surface of the cylindrical groove B, a pipe insertion channel is formed between the central pipe and the inner wall of the cylindrical groove B, an elastic rubber ring and an annular gasket are arranged on the central pipe, the water guide pipe penetrates through the side wall of the central pipe and is in sliding connection with the central pipe, the elastic rubber ring and the annular gasket, and the annular plate abuts against the side, away from the elastic rubber ring, of the annular gasket.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and in particular to a quick-connect plastic water pipe. Background Technology

[0002] Plastic water pipes are very common in daily life. Due to the limited length of a single pipe, in situations where the pipe length requirement is large, multiple sections of water pipe need to be quickly connected using connectors.

[0003] Currently, the connection of flexible water pipes mainly uses a hose insert connector, which is used to tighten and fix the hose to the connector from the outside using clamps or wire ties. This operation requires additional tools and the parts are relatively scattered, so the efficiency is very low when actually connecting pipes. The existing structure needs to be improved. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a quick-connect plastic water pipe.

[0005] The technical solution of this utility model is as follows: a quick-connect plastic water pipe, including an outer pipe, two coaxial cylindrical grooves A are symmetrically arranged on the outer pipe, a flow guide channel is provided on the outer pipe and coaxially connected to the two cylindrical grooves A, a plurality of water guide pipes are arranged in a ring array around the axis of the flow guide channel on the bottom surface of the cylindrical grooves A, the water guide pipes in the two cylindrical grooves A are interconnected, and a ring plate coaxially connected to the water guide pipe is provided on the water guide pipe;

[0006] A hollow spiral cap is inserted into cylindrical groove A and connected to it by a spiral.

[0007] The column tube is slidably set in the column groove A and rotatably connected to the hollow swivel cap. The column tube is provided with a coaxial column groove B and a guide hole, and the guide hole is connected to the column groove B.

[0008] The central tube is coaxially mounted on the bottom surface of the cylindrical groove B. An insertion channel is provided between the outer wall of the central tube and the inner wall of the cylindrical groove B. An annular groove C, coaxial with the central tube, is provided on the arc surface of the central tube. An elastic rubber ring and an annular washer, coaxial with the central tube, are provided in the annular groove C. The water guide pipe passes through the side wall of the central tube and is slidably connected to the central tube, the elastic rubber ring, and the annular washer. The ring plate abuts against the side of the annular washer away from the elastic rubber ring.

[0009] Preferably, an annular groove A, coaxial with the cylindrical groove B, is provided on the arc-shaped inner wall of the cylindrical groove B. Several anti-slip teeth are provided at intervals on the arc-shaped inner wall of the annular groove A, and the annular groove A and the annular groove C are at the same height.

[0010] Preferably, an annular groove B, coaxial with the hollow cap, is provided at the end of the column tube away from it, and a sealing ring, coaxial with it, is provided in the annular groove B, which mates with the bottom surface of the column groove A.

[0011] Preferably, the end of the hollow swivel cap extending out of the outer tube is provided with an annular convex edge, and several anti-slip protrusions are arranged in a circular array around its axis on the outer arc surface of the annular convex edge.

[0012] Preferably, the inner diameter of the cylindrical groove B is the same as the inner diameter of the hollow spiral cap.

[0013] Preferably, an annular groove D coaxial with the inner wall of the elastic rubber ring is provided on the arc-shaped inner wall. When the elastic rubber ring is compressed, the outer arc surface of the elastic rubber ring deforms toward the side away from the central tube.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] By employing a cooperative structure consisting of an outer tube, a hollow swivel cap, a column tube, and a central tube, an insertion channel is created between the inner wall of the column tube and the outer wall of the central tube. The water pipe is inserted into this channel and fitted onto the central tube. The central tube provides support to the water pipe from the inside out. The swivel connection between the hollow swivel cap and the outer tube gradually pushes the column tube inward, increasing the insertion depth of the water pipe. A water guide pipe structure directly connects the water pipes at both ends, compensating for the flow efficiency differences. An elastic rubber ring and annular washer are installed on the central tube, and a ring plate on the water guide pipe pushes the annular washer. The elastic rubber ring deforms outward under pressure, further tightening the water pipe joint and preventing it from falling off. This entire joint structure requires no auxiliary tools when connecting the water pipes, making operation simple and convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0017] Figure 2 A schematic diagram of the connection structure of the various components on the outer tube;

[0018] Figure 3 This is a schematic diagram of the connection structure between the hollow spiral cap and the column tube.

[0019] Figure 4 This is a schematic diagram of the connection structure of the various components on the central tube.

[0020] Reference numerals in the attached drawings: 1. Outer pipe; 101. Cylindrical groove A; 102. Flow guide channel; 2. Water guide pipe; 3. Ring plate; 4. Hollow swivel cap; 5. Column pipe; 51. Cylindrical groove B; 52. Flow guide hole; 53. Annular groove A; 54. Annular groove B; 6. Sealing ring; 7. Central pipe; 71. Annular groove C; 8. Elastic rubber ring; 81. Annular groove D; 9. Annular gasket; 10. Water pipe. Detailed Implementation

[0021] Example 1

[0022] like Figures 1-4 As shown, this utility model proposes a quick-connect plastic water pipe, including an outer pipe 1, a hollow cap 4, a cylindrical pipe 5, and a central pipe 7. Two coaxial cylindrical grooves A101 are symmetrically arranged on the outer pipe 1. A flow channel 102, coaxially connected to the two cylindrical grooves A101, is provided on the outer pipe 1. Several water guide pipes 2 are arranged in a ring array around the axis of the flow channel 102 on the bottom surface of the cylindrical grooves A101. The water guide pipes 2 in the two cylindrical grooves A101 are interconnected, and a ring plate 3, coaxial with the water guide pipe 2, is provided on each water guide pipe 2. The hollow cap 4 is inserted into the cylindrical groove A101 and spirally connected to it. An annular convex edge is provided at one end of the hollow cap 4 extending from the outer pipe 1. Several anti-slip protrusions are arranged in a ring array around the axis of the annular convex edge on its outer arc surface. The column tube 5 is slidably disposed within the cylindrical groove A101 and rotatably connected to the hollow cap 4. The column tube 5 is provided with a coaxial cylindrical groove B51 and a guide hole 52. The inner diameter of the cylindrical groove B51 is the same as the inner diameter of the hollow cap 4. The guide hole 52 is connected to both the cylindrical groove B51 and the guide channel 102. At the end of the column tube 5 furthest from the hollow cap 4, a coaxial annular groove B54 is provided. A coaxial sealing ring 6 is disposed within the annular groove B54, and the sealing ring 6 mates with the bottom surface of the cylindrical groove A101. A central tube 7 is coaxially mounted on the bottom surface of a cylindrical groove B51. An insertion channel is provided between the outer wall of the central tube 7 and the inner wall of the cylindrical groove B51. An annular groove C71, coaxial with the central tube 7, is provided on its arc surface. An elastic rubber ring 8 and an annular washer 9, coaxial with the central tube 7, are installed within the annular groove C71. A water guide pipe 2 penetrates the side wall of the central tube 7 and is slidably connected to the central tube 7, the elastic rubber ring 8, and the annular washer 9. An annular plate 3 abuts against the side of the annular washer 9 away from the elastic rubber ring 8. An annular groove D81, coaxial with the elastic rubber ring 8, is provided on the arc-shaped inner wall of the elastic rubber ring 8. When the annular washer 9 is compressed, the outer arc surface of the elastic rubber ring 8 deforms towards the side away from the central tube 7.

[0023] In this embodiment, when connecting the pipe, the end of the water pipe 10 is first inserted into the insertion channel until it abuts against the bottom surface of the cylindrical groove B51. At this time, the central tube 7 is in contact with the inner wall of the water pipe 10. Then, the hollow cap 4 is rotated, and the hollow cap 4 is gradually screwed into the inner wall of the outer tube 1, so that the column tube 5 gradually penetrates into the cylindrical groove A101. At the same time, the ring plate 3 on the water guide pipe 2 begins to contact the annular washer 9. As the column tube 5 penetrates deeper, the annular washer 9 gradually squeezes the elastic rubber ring 8. The elastic rubber ring 8 deforms to the outer periphery, and then applies pressure from the inner wall of the water pipe 10 to the outside and locks it with the column tube 5. The sealing ring 6 further improves the sealing performance of the connection between the column tube 5 and the outer tube 1 to prevent water overflow.

[0024] Example 2

[0025] like Figure 3As shown, the quick-connect plastic water pipe proposed in this utility model, compared with the first embodiment, has an annular groove A53 coaxial with the inner arc of the cylindrical groove B51 on the cylindrical pipe 5. Several anti-slip teeth are arranged at intervals on the inner arc of the annular groove A53. The annular groove A53 and the annular groove C71 are at the same height.

[0026] In this embodiment, a section of the water pipe 10 fitted onto the central pipe 7 is expanded in diameter toward the annular groove A53 by the extrusion of the elastic rubber ring 8 from the inside out. After the outer wall of this section of the water pipe 10 enters the annular groove A53, it comes into contact with the anti-slip teeth. The anti-slip teeth come into contact with the water pipe 10 by extrusion, thereby further improving the connection stability between the water pipe 10 and the column pipe 5 and the central pipe 7, and improving the pressure resistance and anti-detachment performance of the water pipe.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A quick coupling plastic water pipe, characterized in that, include: An outer tube (1) is provided with two cylindrical grooves A (101) symmetrically arranged on the outer tube (1) and a flow channel (102) coaxially connected to the two cylindrical grooves A (101) is provided on the outer tube (1). Several water pipes (2) are arranged in a ring array around the axis of the flow channel (102) on the bottom surface of the cylindrical grooves A (101). The water pipes (2) in the two cylindrical grooves A (101) are interconnected, and a ring plate (3) coaxially connected to the water pipe (2) is provided on the water pipe (2). Hollow spiral cap (4) is inserted into cylindrical groove A (101) and spirally connected to it; The column tube (5) is slidably disposed in the column groove A (101) and rotatably connected to the hollow swivel cap (4). The column tube (5) is provided with a coaxial column groove B (51) and a guide hole (52). The guide hole (52) is connected to the column groove B (51). And a central tube (7), the central tube (7) is coaxially set on the bottom surface of the cylindrical groove B (51), a tube insertion channel is set between the outer wall of the central tube (7) and the inner wall of the cylindrical groove B (51), an annular groove C (71) coaxial with it is set on the arc surface of the central tube (7), an elastic rubber ring (8) and an annular washer (9) coaxial with it are set in the annular groove C (71), and a water guide pipe (2) passes through the side wall of the central tube (7) and is slidably connected to the central tube (7), the elastic rubber ring (8) and the annular washer (9), and the ring plate (3) abuts against the side of the annular washer (9) away from the elastic rubber ring (8).

2. A quick coupling plastic water pipe according to claim 1, characterized in that, On the column tube (5), an annular groove A (53) is provided on the arc-shaped inner wall of the column groove B (51) and is coaxial with it. Several anti-slip teeth are provided at intervals on the arc-shaped inner wall of the annular groove A (53). The annular groove A (53) and the annular groove C (71) are at the same height.

3. A quick coupling plastic water pipe according to claim 1, characterized in that, The end of the column tube (5) away from the hollow swivel cap (4) is provided with an annular groove B (54) coaxial with it. A sealing ring (6) coaxial with it is provided in the annular groove B (54). The sealing ring (6) is engaged with the bottom surface of the column groove A (101).

4. A quick coupling plastic water pipe according to claim 1, characterized in that, The hollow swivel cap (4) has an annular convex edge at one end extending from the outer tube (1), and several anti-slip protrusions are arranged in a ring array around its axis on the outer arc surface of the annular convex edge.

5. A quick coupling plastic water pipe according to claim 1, characterized in that, The inner diameter of the cylindrical groove B (51) is the same as the inner diameter of the hollow spiral cap (4).

6. A quick connect plastic water hose as defined in claim 1, wherein, An annular groove D (81) is provided on the arc-shaped inner wall of the elastic rubber ring (8) and is coaxial with it. When the annular washer (9) is compressing the elastic rubber ring (8), the outer arc surface of the elastic rubber ring (8) deforms toward the side away from the central tube (7).

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