A multi-layer composite PVC-U plastic pipe fitting

Abstract

This utility model discloses a multi-layer composite PVC-U plastic pipe fitting, including a fitting mechanism and a sealing mechanism. The fitting mechanism includes a connector, a connecting pipe connected to and communicating with the connector, and a sealing mechanism. The sealing mechanism includes multiple arc plates embedded inside the connector, an adhesive cavity located on the inner side of the arc plates, multiple pressure blocks attached to the outer side of the arc plates, and multiple adhesive outlet pipes installed on both sides of the arc plates and communicating with the interior of the adhesive cavity. The outer ends of the adhesive outlet pipes are flush with the outer wall of the connector. In this utility model, when it is confirmed that there is adhesive inside the adhesive cavity, the operator screws the connector to the outer pipe body. The inner wall of the outer pipe body is deformed by squeezing the pressure blocks, and then the volume of the adhesive cavity decreases. The adhesive inside fills the gap between the connector and the outer pipe body through the adhesive outlet pipes, thereby completing the sealing connection and improving the user comfort of this device.

Description

Technical Field

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

[0002] Plastic pipes, as an important type of chemical building materials, are widely used in urban sewage and other fields. During pipeline construction, in addition to the pipes themselves, a large number of plastic fittings such as joints, elbows, and tees are also used.

[0003] Currently used plastic pipe fittings require waterproof tape when connecting to external pipes. The waterproof tape is either wrapped or wrapped around the threaded part of the plastic pipe fitting to prevent leakage when water is passed through, but this also makes installation very inconvenient. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A multi-layer composite PVC-U plastic pipe fitting includes a fitting mechanism and a sealing mechanism. The fitting mechanism includes a connector and a connecting pipe connected to and communicating with the connector. The sealing mechanism includes multiple arc plates embedded inside the connector, a glue cavity located inside the arc plates, multiple pressure blocks attached to the outside of the arc plates, and multiple glue outlet pipes installed on both sides of the arc plates and communicating with the inside of the glue cavity. The outer end of the glue outlet pipe is flush with the outer wall of the connector.

[0007] By adopting the above technical solution, when it is confirmed that there is adhesive inside the glue cavity, the operator screws the joint to the outer tube. The inner wall of the outer tube is deformed by the squeezing block, and then the volume of the glue cavity is reduced. The adhesive inside fills the gap between the joint and the outer tube through the glue outlet tube, thereby completing the sealing connection and improving the comfort of using this device.

[0008] In a preferred embodiment, the present invention can be further configured such that: the connecting pipe is composed of an impact-resistant layer, a sound-absorbing layer, and a wear-resistant layer; the sound-absorbing layer is sleeved on the outside of the impact-resistant layer; the wear-resistant layer is sleeved on the outside of the sound-absorbing layer; the thickness of the impact-resistant layer is equal to the thickness of the wear-resistant layer; and the thickness of the sound-absorbing layer is greater than the thickness of the impact-resistant layer.

[0009] In a preferred embodiment, this utility model can be further configured as follows: multiple arc plates are equally spaced and arranged in a ring, and the arc plates and pressure blocks are all made of rubber material.

[0010] In a preferred embodiment, the present invention can be further configured such that multiple pressure blocks attached to the outer side of the arc plate are mutually attached, and the pressure blocks are configured as “⊥” shapes.

[0011] In a preferred embodiment, this utility model can be further configured as follows: multiple dispensing tubes are grouped in pairs, with each group consisting of two dispensing tubes located on both sides of multiple pressure blocks.

[0012] In a preferred embodiment, the present invention can be further configured such that the dispensing tube is made of metal material and the inner wall of the dispensing tube is polished.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0014] 1. In this utility model, when it is confirmed that there is adhesive inside the glue cavity, the operator screws the joint to the outer tube. The inner wall of the outer tube is deformed by the squeezing block, and then the volume of the glue cavity is reduced. The adhesive inside fills the gap between the joint and the outer tube through the glue outlet tube, thereby completing the sealing connection and improving the comfort of using this device.

[0015] 2. In this utility model, the material selection and layout design of the dispensing tube not only ensure that the adhesive can be evenly applied to the outer surface of the joint, but also strengthen the joint, ensure the sealing of the connection between the joint and the external pipe, and reduce the probability of its breakage. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the pipe fitting mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the sealing mechanism of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged view of the A-section structure;

[0020] Figure 5 This utility model Figure 2 Enlarged view of the structure of part B.

[0021] Figure label:

[0022] 100. Pipe fittings; 110. Joints; 120. Connecting pipes; 121. Impact-resistant layer; 122. Sound-absorbing layer; 123. Wear-resistant layer;

[0023] 200, Sealing mechanism; 210, Arc plate; 220, Glue cavity; 230, Pressure block; 240, Glue outlet tube. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0025] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0026] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a multi-layer composite PVC-U plastic pipe fitting.

[0027] Example 1:

[0028] Combination Figure 1-5 As shown, the present invention provides a multi-layer composite PVC-U plastic pipe fitting, including a pipe fitting mechanism 100 and a sealing mechanism 200. The pipe fitting mechanism 100 includes a connector 110 and a connecting pipe 120 connected to and communicating with the connector 110.

[0029] The sealing mechanism 200 includes a plurality of arc plates 210 embedded inside the joint 110, a glue cavity 220 disposed inside the arc plates 210, a plurality of pressure blocks 230 attached to the outside of the arc plates 210, and a plurality of glue outlet tubes 240 installed on both sides of the arc plates 210 and communicating with the inside of the glue cavity 220, wherein the outer end of the glue outlet tube 240 is flush with the outer wall of the joint 110.

[0030] Furthermore, multiple arc plates 210 are arranged in a ring with equal spacing. Both the arc plates 210 and the pressure block 230 are made of rubber material. The material selection of the arc plates 210 and the pressure block 230 ensures that even if the pressure block 230 is pressed into the joint 110, it can firmly seal the outer wall of the joint 110, ensuring the contact area between the joint 110 and the external pipe body and improving the connection between the two.

[0031] Furthermore, multiple pressure blocks 230 attached to the outside of the arc plate 210 are attached to each other. The pressure blocks 230 are set in the shape of "⊥". The shape design of the pressure blocks 230 can prevent them from falling off the joint 110.

[0032] Furthermore, multiple dispensing tubes 240 are arranged in pairs, forming multiple groups. In each group, two dispensing tubes 240 are located on both sides of multiple pressure blocks 230. The layout design of the dispensing tubes 240 can ensure that the adhesive is evenly applied to the outside of the joint 110.

[0033] Example 2:

[0034] Combination Figure 2 , 4and Figure 5 As shown, based on Embodiment 1, the connector 120 is composed of an impact-resistant layer 121, a sound-absorbing layer 122, and a wear-resistant layer 123. The sound-absorbing layer 122 is sleeved on the outside of the impact-resistant layer 121, and the wear-resistant layer 123 is sleeved on the outside of the sound-absorbing layer 122. The thickness of the impact-resistant layer 121 is equal to the thickness of the wear-resistant layer 123, and the thickness of the sound-absorbing layer 122 is greater than the thickness of the impact-resistant layer 121. The multi-layer connector 120 gives the product the characteristics of impact resistance, sound absorption, and wear resistance, ensuring the service life of the connector 120.

[0035] Example 3:

[0036] Combination Figure 1-4 As shown, in the above embodiment, the dispensing tube 240 is made of metal material, and the inner wall of the dispensing tube 240 is polished. The installation method of the dispensing tube 240 can strengthen the joint 110 and at the same time ensure that the adhesive in the glue cavity 220 can flow to the outer surface of the joint 110, thus providing conditions for improving the connection sealing.

[0037] The working principle and usage process of this utility model are as follows: In the initial state, each glue cavity 220 is filled with adhesive. When the operator screws the connector 110 to the outer tube, the inner wall of the outer tube will squeeze the pressure block 230 on the connector 110. Then, the pressure block 230 acts on the bottom part of the arc plate 210, and the volume of the glue cavity 220 is reduced. The adhesive inside fills the gap between the connector 110 and the outer tube through the glue outlet tube 240, thereby completing the sealing connection and improving the comfort of using this device.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A PVC-U plastic pipe fitting of a multi-layer composite construction, characterised in that, include: Pipe fitting mechanism (100), the pipe fitting mechanism (100) includes a connector (110) and a connecting pipe (120) connected and communicating with the connector (110); A sealing mechanism (200) includes multiple arc plates (210) embedded inside the joint (110), a glue cavity (220) located inside the arc plate (210), multiple pressure blocks (230) attached to the outside of the arc plate (210), and multiple glue outlet tubes (240) installed on both sides of the arc plate (210) and communicating with the inside of the glue cavity (220). The outer end of the glue outlet tube (240) is flush with the outer wall of the joint (110).

2. The PVC-U plastic pipe fitting with a multi-layer composite structure according to claim 1, characterized in that, The connector (120) is composed of an impact-resistant layer (121), a sound-absorbing layer (122), and a wear-resistant layer (123). The sound-absorbing layer (122) is sleeved on the outside of the impact-resistant layer (121), and the wear-resistant layer (123) is sleeved on the outside of the sound-absorbing layer (122). The thickness of the impact-resistant layer (121) is equal to the thickness of the wear-resistant layer (123), and the thickness of the sound-absorbing layer (122) is greater than the thickness of the impact-resistant layer (121).

3. The PVC-U plastic pipe fitting with a multi-layer composite structure according to claim 1, characterized in that, Multiple arc plates (210) are arranged in a ring with equal spacing, and the arc plates (210) and pressure blocks (230) are both made of rubber material.

4. The PVC-U plastic pipe fitting with a multi-layer composite structure according to claim 1, characterized in that, Multiple pressure blocks (230) attached to the outside of the arc plate (210) are attached to each other, and the pressure blocks (230) are set in the shape of "⊥".

5. A multi-layer composite PVC-U plastic pipe fitting according to claim 1, characterized in that, Multiple dispensing tubes (240) are arranged in pairs, forming multiple groups. In each group, two dispensing tubes (240) are located on both sides of multiple pressure blocks (230).

6. A multi-layer composite PVC-U plastic pipe fitting according to claim 1, characterized in that, The dispensing tube (240) is made of metal, and the inner wall of the dispensing tube (240) is polished.

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