Novel high-ring stiffness PVC (polyvinyl chloride) pipe

Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) pipelines, in particular to a novel high-ring-stiffness PVC pipe which comprises a PVC layer and a rubber layer, the rubber layer is arranged on the outer wall of the PVC layer, a stainless steel layer is arranged on the outer wall of the rubber layer, a groove ring is fixedly connected to the outer wall of the left side of the stainless steel layer, a connecting device is arranged on the outer wall of the right end of the stainless steel layer, and the groove ring is fixedly connected to the outer wall of the right end of the stainless steel layer. According to the novel high-ring-stiffness PVC pipe, through cooperation of the connecting device and the stainless steel layer, when the bolts are rotated, the bolts on the two sides can move relatively, the bolts on the two sides can drive the inserting rods on the two sides to move synchronously through the circular rings, and therefore the inserting rods on the two sides can move synchronously; the inserting rods can enter the grooves in the surfaces of the stainless steel layers, pipelines on the two sides can be stably connected, the pipelines can be stably connected in a locking mode, the device is more stable during connection and better in sealing performance, and meanwhile the ring stiffness is improved.

Description

Technical Field

[0001] This utility model relates to the field of PVC pipe technology, specifically a novel high ring stiffness PVC pipe. Background Technology

[0002] PVC pipes are lightweight, corrosion-resistant, pressure-resistant, and impact-resistant. They are used for power and communication line wiring, fixing and protecting lines. They are widely used in construction, electrical, communication, and information technology fields. Suitable for conveying corrosive media at temperatures below 45℃. They are easy to install and bend.

[0003] For example, a PVC pipe with authorization announcement number "CN205231645U" has a flared end where the inner diameter gradually decreases from the end to the non-flared end. This makes the PVC pipe increasingly tight during insertion, achieving a good seal even without the need for adhesive. However, simply reducing the size of the flared end makes it inconvenient to stably connect two sets of pipes, resulting in poor sealing during use. Furthermore, the device uses only one layer of PVC material, leading to low ring stiffness. Utility Model Content

[0004] The purpose of this invention is to solve the problems of low sealing performance and poor ring stiffness of the device, and to propose a new type of high ring stiffness PVC pipe.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A novel high-ring stiffness PVC pipe is designed, comprising a PVC layer and a rubber layer. The outer wall of the PVC layer is provided with a rubber layer, and the outer wall of the rubber layer is provided with a stainless steel layer. A grooved ring is fixedly connected to the left outer wall of the stainless steel layer, and a connecting device is provided on the right outer wall of the stainless steel layer. Grooves are symmetrically formed on the left outer wall of the stainless steel layer, and threaded holes are symmetrically formed on the right outer wall of the stainless steel layer. A groove is formed on one side of the grooved ring.

[0007] Preferably, the connecting device includes a connecting ring and a bolt. The upper end of the connecting ring abuts against the bolt. One end of the bolt is threaded to a stainless steel layer. The outer wall of the bolt is rotatably connected to the ring. A rod is fixedly connected to the outer wall of the ring. The outer wall of the rod is slidably connected to the connecting ring. One end of the rod passes through the connecting ring.

[0008] Preferably, the inner wall of the connecting ring is in contact with the outer wall of the stainless steel layer, and the outer wall of the connecting ring is in abutted against the inner wall of the groove ring.

[0009] Preferably, one end of the insertion rod is engaged with another set of stainless steel layers, and one end of the two stainless steel layers is pressed together.

[0010] This utility model proposes a novel high-ring stiffness PVC pipe, the advantages of which are as follows: Through the cooperation of the connecting device and the stainless steel layer, the connecting ring is fitted onto the outer wall of the stainless steel layer, and at the same time, the stainless steel layer of the other pipe is pressed against the stainless steel layer with the connecting ring fitted on it. Simultaneously, the internal rubber layer and PVC layer are aligned, and the connecting ring is pushed into the grooved ring of the other pipe, so that the outer wall of the connecting ring and the inner wall of the grooved ring are tightly fitted. Simultaneously, the operator rotates the bolts on both sides, so that the bolts on both sides are threaded into the threaded holes on the surface of the stainless steel layer. While rotating the bolts, the bolts on both sides move relative to each other, allowing the bolts on both sides to drive the insert rods on both sides to move synchronously through the rings, so that the insert rods can enter the grooves on the surface of the stainless steel layer, allowing the pipes on both sides to be stably connected. This allows for a locking-type stable connection of the pipes. Furthermore, the outermost layer of this PVC pipe is a stainless steel layer, making the connection more stable, providing better sealing, and increasing ring stiffness. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 for Figure 1 A front sectional view;

[0013] Figure 3 for Figure 1 Side view;

[0014] Figure 4 for Figure 1 A 3D view of the PVC layer, rubber layer, and stainless steel layer;

[0015] Figure 5 for Figure 2 Schematic diagram of part A in the middle.

[0016] In the diagram: 1. PVC layer, 2. Rubber layer, 3. Stainless steel layer, 4. Connecting device, 401. Connecting ring, 402. Bolt, 403. Insert rod, 404. Circular ring, 5. Grooved ring. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] See attached document Figure 1-5In this embodiment, a novel high-ring stiffness PVC pipe includes a PVC layer 1 and a rubber layer 2. The outer wall of the PVC layer 1 is provided with a rubber layer 2, which can improve the sealing between the two sets of pipes. The outer wall of the rubber layer 2 is provided with a stainless steel layer 3, which can enable the inner PVC layer 1 to withstand greater forces and achieve higher ring stiffness. A grooved ring 5 is fixedly connected to the left outer wall of the stainless steel layer 3, and the grooved ring 5 and the connecting ring 401 can be connected more stably. A connecting device 4 is provided on the right outer wall of the stainless steel layer 3. Grooves are symmetrically opened on the left outer wall of the stainless steel layer 3. The grooves on the surface of the stainless steel layer 3 allow the insertion rod 403 to be inserted, so that the pipes on both sides can be stably connected. Threaded holes are symmetrically opened on the right outer wall of the stainless steel layer 3, and a groove is opened on one side of the grooved ring 5.

[0019] The inner wall of the connecting ring 401 is in contact with the outer wall of the stainless steel layer 3, the outer wall of the connecting ring 401 is pressed against the inner wall of the groove ring 5, one end of the insertion rod 403 is engaged with another set of stainless steel layers 3, and one end of the two stainless steel layers 3 are pressed against each other.

[0020] The connecting device 4 includes a connecting ring 401 and a bolt 402. The upper end of the connecting ring 401 abuts against the bolt 402. One end of the bolt 402 is threadedly connected to the stainless steel layer 3. The threaded connection between the bolt 402 and the stainless steel layer 3 can stably connect the connecting ring 401 and the stainless steel layer 3. The outer wall of the bolt 402 is rotatably connected to the ring 404. The ring 404 does not rotate while the bolt 402 rotates, but can move downward synchronously while the bolt 402 moves, so that the ring 404 can drive the insertion rod 403 to move synchronously. The insertion rod 403 is fixedly connected to the outer wall of the ring 404. The outer wall of the insertion rod 403 is slidably connected to the connecting ring 401. The slide inside the connecting ring 401 can fix the movement trajectory of the insertion rod 403. One end of the insertion rod 403 passes through the connecting ring 401.

[0021] Working principle:

[0022] When connecting two sets of PVC pipes:

[0023] The connecting ring 401 is fitted onto the outer wall of the stainless steel layer 3. Simultaneously, the stainless steel layer 3 of the other pipe is pressed against the stainless steel layer 3 with the connecting ring 401 fitted on it. The inner rubber layer 2 and PVC layer 1 are also aligned. The connecting ring 401 is pushed into the grooved ring 5 of the other pipe, ensuring a tight fit between the outer wall of the connecting ring 401 and the inner wall of the grooved ring 5. Simultaneously, the operator rotates the bolts 402 on both sides, causing them to thread into the threaded holes on the surface of the stainless steel layer 3. Rotating the bolts 402 causes relative movement between the bolts 402 and the connecting rods 403 on both sides, which, through the ring 404, drive the insert rods 403 to move synchronously. This allows the insert rods 403 to enter the grooves on the surface of the stainless steel layer 3, ensuring a stable connection between the two pipes (the pipe lengths in the diagram are for illustrative purposes only; in reality, pipe lengths can be altered).

[0024] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A novel high-ring stiffness PVC pipe, comprising a PVC layer (1) and a rubber layer (2), wherein the outer wall of the PVC layer (1) is provided with the rubber layer (2), characterized in that: The outer wall of the rubber layer (2) is provided with a stainless steel layer (3). A grooved ring (5) is fixedly connected to the left outer wall of the stainless steel layer (3). A connecting device (4) is provided on the right outer wall of the stainless steel layer (3). Grooves are symmetrically opened on the left side of the outer wall of the stainless steel layer (3). Threaded holes are symmetrically opened on the right side of the outer wall of the stainless steel layer (3). A groove is opened on one side of the grooved ring (5).

2. The novel high-ring stiffness PVC pipe according to claim 1, characterized in that: The connecting device (4) includes a connecting ring (401) and a bolt (402). The upper end of the connecting ring (401) abuts against the bolt (402). One end of the bolt (402) is threadedly connected to the stainless steel layer (3). The outer wall of the bolt (402) is rotatably connected to the ring (404). A plug rod (403) is fixedly connected to the outer wall of the ring (404). The outer wall of the plug rod (403) is slidably connected to the connecting ring (401). One end of the plug rod (403) passes through the connecting ring (401).

3. The novel high-ring stiffness PVC pipe according to claim 2, characterized in that: The inner wall of the connecting ring (401) is in contact with the outer wall of the stainless steel layer (3), and the outer wall of the connecting ring (401) is in abutted against the inner wall of the groove ring (5).

4. A novel high-ring stiffness PVC pipe according to claim 2, characterized in that: One end of the insertion rod (403) is engaged with another set of stainless steel layers (3), and the two ends of the stainless steel layers (3) on both sides are pressed together.

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