Double-layer plastic pipe fitting

Abstract

The utility model relates to the technical field of plastic pipe fittings, in particular to a double-layer plastic pipe fitting which comprises a pipe fitting assembly, and a connecting assembly is arranged on the outer wall of one end of the pipe fitting assembly. And the connecting assembly comprises a screw ring, a nut is connected to the outer wall of the screw ring, a movable ring is fixedly arranged on one side of the nut, a rotating rod abuts against the inner side of the movable ring, a fixed rod penetrates through the interior of one end of the rotating rod, and fixed blocks are fixedly arranged at the two ends of the fixed rod. According to the plastic pipe fitting, due to the arrangement of the connecting assembly, connection of the two pipe fittings is completed through friction force, damage to the connecting position is avoided during follow-up disassembly, labor intensity is low, connection can be completed only by screwing one nut, connecting efficiency is high, the buffering layer is located between the inner layer and the outer layer in the using process, the buffering effect is achieved, and the service life of the plastic pipe fitting is prolonged. The inner wall of the inner layer is prevented from being damaged due to the fact that water flow in the inner layer is too large, the rubber ring plays a role in enhancing sealing, and the situation of water leakage after connection is prevented.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe fittings technology, specifically a double-layer plastic pipe fitting. Background Technology

[0002] Plastic pipe fittings are generally made from synthetic resin, namely polyester, with the addition of stabilizers, lubricants, plasticizers, etc., and are processed by extrusion in a pipe-making machine using the "plastic" method.

[0003] However, when two plastic pipes need to be connected, they are usually connected using glue, heat fusion, or bolts. After connecting with glue or heat fusion, the pipes can only be separated with a cutting tool, which will damage the connection and affect the next connection. When connecting with bolts, multiple bolts need to be tightened, which is labor-intensive and inefficient. Utility Model Content

[0004] The purpose of this utility model is to provide a double-layer plastic pipe fitting to solve the problems mentioned in the background art, such as the inconvenience of connecting two plastic pipe fittings, the easy damage to the connection point, or the high labor intensity during connection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-layer plastic pipe fitting, comprising:

[0006] A pipe fitting assembly, wherein a connecting component is provided on the outer wall of one end of the pipe fitting assembly;

[0007] The connecting assembly includes a screw ring, a nut is connected to the outer wall of the screw ring, a movable ring is fixedly provided on one side of the nut, a rotating rod is abutted on the inner side of the movable ring, a fixed rod passes through one end of the rotating rod, and fixed blocks are fixedly provided at both ends of the fixed rod.

[0008] Preferably, the pipe assembly includes an inner layer, a buffer layer connected to the outer wall of the inner layer, an outer layer connected to the outer wall of the buffer layer, and end blocks fixedly disposed at both ends of the inner layer, the buffer layer, and the outer layer, with a rubber ring fixedly disposed on the side of the end block away from the inner layer.

[0009] Preferably, the buffer layer and the inner layer are fixedly connected, and the outer layer is fixedly connected to the buffer layer.

[0010] Preferably, the spool is fixedly connected to the end block, and the nut is threadedly connected to the spool.

[0011] Preferably, the rotating rod and the fixed rod are rotatably connected, and the fixed block and the end block are fixedly connected.

[0012] Preferably, a protrusion is provided on the inner side of the end of the rotating rod away from the fixed rod, and four sets of rotating rods are provided, which are evenly arranged on the inner side of the movable ring.

[0013] Preferably, the side of the rotating rod away from the movable ring abuts against the end block of another set of pipe fittings, and the surface of the rotating rod is coated with an anti-slip material.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) The plastic pipe fitting of this utility model can first connect the rubber rings of two pipe fitting components to each other by setting the connecting components. Then, the nut is turned and the nut is turned on the outer wall of the screw ring. The nut drives the movable ring to move. The movable ring squeezes the rotating rod, so that the rotating rod rotates around the fixed rod until it fits with the end block of the other pipe fitting component. After the nut is tightened, the protrusion of the rotating rod is pressed against the surface of the end block of the other pipe fitting component. The connection of the two pipe fittings is completed by using friction. The connection will not be damaged during subsequent disassembly. The labor intensity is low. Only one nut needs to be turned to complete the connection. The connection efficiency is high.

[0016] (2) When the plastic pipe fitting of this utility model is used, the buffer layer is located between the inner layer and the outer layer, which plays a buffering role and prevents the water flow in the inner layer from being too large and causing damage to the inner wall of the inner layer. The rubber ring plays a role in enhancing the seal and preventing water leakage after connection. Attached image description:

[0017] Figure 1 This is a front view of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural cross-sectional schematic diagram of the pipe fitting assembly and connecting assembly of this utility model;

[0019] Figure 3 This is an exploded view of the pipe fitting assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the connecting component of this utility model;

[0021] Figure 5 This is an exploded view of the connecting component of this utility model.

[0022] In the diagram: 01, Pipe assembly; 11, Inner layer; 12, Buffer layer; 13, Outer layer; 14, End block; 15, Rubber ring; 02, Connecting assembly; 21, Threaded ring; 22, Nut; 23, Moving ring; 24, Rotating rod; 25, Fixed rod; 26, Fixed block. Detailed implementation method:

[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] Please see Figure 1-5 One embodiment of this utility model is a double-layer plastic pipe fitting.

[0025] Includes: a pipe fitting assembly 01, with a connecting component 02 provided on the outer wall of one end of the pipe fitting assembly 01;

[0026] The connecting assembly 02 includes a screw ring 21, and a nut 22 is connected to the outer wall of the screw ring 21. When the nut 22 is turned, the nut 22 rotates on the outer wall of the screw ring 21, and the nut 22 drives the movable ring 23 to move. The movable ring 23 presses the rotating rod 24, so that the rotating rod 24 rotates around the fixed rod 25 until it is in contact with the end block 14 of another pipe fitting assembly 01. The movable ring 23 is fixedly provided on one side of the nut 22. When the movable ring 23 no longer presses against the rotating rod 24, the rotating rod 24 rotates around the fixed rod 25 without affecting the separation of the two pipe fittings. The inner side of the movable ring 23 abuts against the rotating rod 24. When the rotating rod 24 is in close contact with the end block 14 of another pipe fitting assembly 01, the installation of the two pipe fittings can be completed by friction. The fixed rod 25 passes through the interior of one end of the rotating rod 24, and the fixed blocks 26 are fixedly provided at both ends of the fixed rod 25.

[0027] Furthermore, the pipe fitting assembly 01 includes an inner layer 11, and a buffer layer 12 is connected to the outer wall of the inner layer 11. The buffer layer 12 is located between the inner layer 11 and the outer layer 13, and plays a buffering role to prevent excessive water flow in the inner layer 11 from damaging the inner wall of the inner layer 11. The outer wall of the buffer layer 12 is connected to the outer layer 13. End blocks 14 are fixedly installed at both ends of the inner layer 11, the buffer layer 12 and the outer layer 13. A rubber ring 15 is fixedly installed on the side of the end block 14 away from the inner layer 11. The rubber ring 15 plays a role in enhancing the seal and preventing water leakage after connection.

[0028] Furthermore, the buffer layer 12 is fixedly connected to the inner layer 11, and the outer layer 13 is fixedly connected to the buffer layer 12. The buffer layer 12 is located between the inner layer 11 and the outer layer 13, and plays a buffering role to prevent excessive water flow in the inner layer 11 from damaging the inner wall of the inner layer 11.

[0029] Furthermore, the screw ring 21 is fixedly connected to the end block 14 to ensure the firmness of the screw ring 21 position. The nut 22 is threadedly connected to the screw ring 21. When the nut 22 is turned, the nut 22 rotates on the outer wall of the screw ring 21. The nut 22 drives the movable ring 23 to move. The movable ring 23 presses the rotating rod 24, so that the rotating rod 24 rotates around the fixed rod 25 until it fits against the end block 14 of another pipe fitting assembly 01.

[0030] Furthermore, the rotating rod 24 is rotatably connected to the fixed rod 25. When the movable ring 23 no longer abuts against the rotating rod 24, the rotating rod 24 rotates around the fixed rod 25 without affecting the separation of the two pipe fittings. The fixed block 26 is fixedly connected to the end block 14 to ensure the firmness of the fixed block 26 position, thereby ensuring the firmness of the fixed rod 25 position.

[0031] Furthermore, a protrusion is provided on the inner side of the end of the rotating rod 24 away from the fixed rod 25, which can ensure that the protrusion of the rotating rod 24 is more closely attached to the surface of the end block 14 of the other pipe fitting assembly 01. There are four sets of rotating rods 24, which are evenly arranged on the inner side of the movable ring 23, and can limit the other pipe fitting assembly 01 from four directions, so that the force is evenly distributed and the connection is stable.

[0032] Furthermore, the side of the rotating rod 24 away from the movable ring 23 abuts against the end block 14 of another set of pipe fittings 01, ensuring that the protrusion of the rotating rod 24 can be tightly attached to the surface of the end block 14 of the other pipe fittings 01. The surface of the rotating rod 24 is coated with anti-slip material. When the rotating rod 24 is tightly attached to the end block 14 of the other pipe fittings 01, the installation of the two pipe fittings can be completed by friction.

[0033] Working principle: In use, first, the rubber rings 15 of the two pipe fitting assemblies 01 are brought into contact with each other. Then, the nut 22 is tightened. The nut 22 rotates on the outer wall of the threaded ring 21, causing the movable ring 23 to move. The movable ring 23 presses against the rotating rod 24, causing the rotating rod 24 to rotate around the fixed rod 25 until it is in contact with the end block 14 of the other pipe fitting assembly 01. After tightening the nut 22, the protrusion of the rotating rod 24 is pressed tightly against the surface of the end block 14 of the other pipe fitting assembly 01, and the connection of the two pipe fittings is completed by friction. The above is the complete working principle of this utility model.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A double layer plastic pipe fitting, characterized by, Include: Pipe assembly (01), one end of the outer wall of the pipe assembly (01) is provided with a connecting assembly (02); The connecting assembly (02) comprises a spiral ring (21), the outer wall of the spiral ring (21) is connected with a nut (22), one side of the nut (22) is fixedly provided with a movable ring (23), the inner side of the movable ring (23) abuts with a rotating rod (24), one end of the rotating rod (24) is internally penetrated with a fixed rod (25), both ends of the fixed rod (25) are fixedly provided with a fixed block (26).

2. A double layer plastic pipe according to claim 1, characterized in that: The pipe assembly (01) comprises an inner layer (11), the outer wall of the inner layer (11) is connected with a buffer layer (12), the outer wall of the buffer layer (12) is connected with an outer layer (13), both ends of the inner layer (11), buffer layer (12) and outer layer (13) are fixedly provided with an end block (14), one side of the end block (14) away from the inner layer (11) is fixedly provided with a rubber ring (15).

3. A double layer plastic pipe according to claim 2, characterized in that: The buffer layer (12) and the inner layer (11) are fixedly connected, and the outer layer (13) is fixedly connected with the buffer layer (12).

4. A dual layer plastic pipe according to claim 1, wherein: The spiral ring (21) is fixedly connected with the end block (14), and the nut (22) is threadedly connected with the spiral ring (21).

5. A dual layer plastic pipe according to claim 1, wherein: The rotating rod (24) is rotatably connected with the fixed rod (25), and the fixed block (26) is fixedly connected with the end block (14).

6. A dual layer plastic pipe according to claim 1, wherein: The inner side of one end of the rotating rod (24) away from the fixed rod (25) is provided with a protruding block, the rotating rod (24) is provided with four groups, and is uniformly arranged on the inner side of the movable ring (23).

7. A dual layer plastic pipe according to claim 1, wherein: The side of the rotating rod (24) away from the movable ring (23) abuts on the end block (14) of another pipe assembly (01), and the surface of the rotating rod (24) is sprayed with anti-skid material.

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