Stable corrosion-resistant super-long plastic expansion pipe assembly
By introducing structures such as sliding grooves, limiting blocks, and threaded grooves into the plastic expansion tube assembly, the problem of fixed length of plastic expansion tubes is solved, achieving adjustable length and enhanced stability, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-03
AI Technical Summary
Some plastic expansion tubes are one-piece structures, with limited usable length, making them inconvenient to adjust and impractical.
An ultra-long plastic expansion tube assembly comprising a first plastic tube body and a second plastic tube body was designed. By setting structures such as sliding grooves, limiting blocks, moving tubes and threaded grooves on the inner wall of the tube body, the length can be adjusted and fixed, increasing the usable length and stability.
The adjustable length of the plastic expansion tube increases its practicality, and the anti-aging and wear-resistant layers extend its service life, improving the stability and corrosion resistance of the components.
Smart Images
Figure CN224079437U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic expansion tube technology, specifically relating to a robust and corrosion-resistant ultra-long plastic expansion tube assembly. Background Technology
[0002] Plastic expansion tubes mainly consist of two parts: the expansion tube body and the threaded pin. The expansion tube body is usually made of plastic materials, such as polyethylene (PE) or nylon (PA), which have good elasticity and toughness. The threaded pin is used to mate with the expansion tube body, and by rotating it into the wall, it expands and fixes the expansion tube in the wall. Plastic expansion tubes are suitable for various light-duty fixing tasks, such as the installation of household shelves, curtain rods, and small light fixtures. Some plastic expansion tubes are one-piece structures, which limits the length available and makes adjustment inconvenient, thus reducing their practicality. Utility Model Content
[0003] To address the problems mentioned in the background art, this utility model provides a robust and corrosion-resistant ultra-long plastic expansion tube assembly, which solves the problem that some plastic expansion tubes are all one-piece structures, with limited usable length, inconvenient adjustment, and low practicality.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a robust and corrosion-resistant ultra-long plastic expansion tube assembly, comprising a first plastic tube body and a second plastic tube body. Sliding grooves are provided on both sides of the inner wall of the first plastic tube body. Limiting blocks are fixedly installed on both sides of the surface of the second plastic tube body. A movable tube is provided inside the second plastic tube body. A first threaded groove is provided on the inner surface of the second plastic tube body. A thin iron wire is fixedly installed inside the first plastic tube body. Limiting plates are fixedly installed on both sides of the surface of the first plastic tube body. Stepped slots are provided on both sides of the first plastic tube body.
[0005] Preferably, a connecting block is fixedly installed at the bottom of the first plastic tube, a second threaded groove is formed on the inner wall of the first plastic tube, and a third threaded groove is formed on the inner wall of the second plastic tube.
[0006] Preferably, the surface of the connecting block is provided with threads, and the surface of the connecting block is provided with a conical shape. The surfaces of the first plastic tube, the moving tube, and the second plastic tube are all provided with an anti-aging layer, and the inner walls of the second thread groove and the third thread groove are all provided with a wear-resistant layer.
[0007] Preferably, the inner wall of the movable tube is threadedly connected to the first threaded groove, and the movable tube is located above the limiting block.
[0008] Preferably, the top of the movable tube is located inside the second plastic tube body, and the surface of the movable tube is slidably connected to the second plastic tube body.
[0009] Preferably, the sliding slot is slidably connected to the limiting block, and the interior of the sliding slot is configured in a fishbone shape.
[0010] Preferably, the thin iron wire is located above the stepped slot groove and is relaxed below the sliding groove. The interior of the second threaded groove is conical and is located below the thin iron wire.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] The staff places the limiting block into the appropriate position inside the sliding slot for engagement, then rotates the moving tube to move it closer to the first plastic tube, supporting and fixing the limiting block and the sliding slot. This greatly increases the usable length of the component and makes it easier to adjust the length for use, increasing its practicality. The component is then placed in the mounting hole, and screws are used to rotate it into the inside of the first and second plastic tubes, causing the stepped gap groove and the limiting plate to move and expand outwards. The thin iron wire is installed to reduce the degree of deformation above the stepped gap groove and ensure the normal connection between the first and second plastic tubes. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is an exploded view of the present invention;
[0016] Figure 3 This is a cross-sectional view of the present invention.
[0017] In the diagram: 1. First plastic tube; 2. Moving tube; 3. Second plastic tube; 4. Stepped slot; 5. Limiting plate; 6. Connecting block; 7. First threaded groove; 8. Limiting block; 9. Thin iron wire; 10. Sliding slot. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-3 The present invention provides the following technical solution: a stable and corrosion-resistant ultra-long plastic expansion tube assembly, comprising a first plastic tube body 1 and a second plastic tube body 3, wherein sliding grooves 10 are provided on both sides of the inner wall of the first plastic tube body 1, limiting blocks 8 are fixedly installed on both sides of the surface of the second plastic tube body 3, a movable tube 2 is provided inside the second plastic tube body 3, a first threaded groove 7 is provided on the inner surface of the second plastic tube body 3, a thin iron wire 9 is fixedly installed inside the first plastic tube body 1, limiting plates 5 are fixedly installed on both sides of the surface of the first plastic tube body 1, and stepped slots 4 are provided on both sides of the first plastic tube body 1.
[0020] A connecting block 6 is fixedly installed at the bottom of the first plastic tube 1. A second threaded groove is formed on the inner wall of the first plastic tube 1, and a third threaded groove is formed on the inner wall of the second plastic tube 3. The surface of the connecting block 6 is threaded and tapered. The surfaces of the first plastic tube 1, the moving tube 2, and the second plastic tube 3 are all provided with an anti-aging layer. The inner walls of the second and third threaded grooves are all provided with a wear-resistant layer.
[0021] The inner wall of the movable tube 2 is threadedly connected to the first threaded groove 7, and the movable tube 2 is located above the limiting block 8. The top of the movable tube 2 is located inside the second plastic tube body 3, and the surface of the movable tube 2 is slidably connected to the second plastic tube body 3.
[0022] The sliding groove 10 is slidably connected to the limiting block 8, and the interior of the sliding groove 10 is arranged in a fishbone shape. The thin iron wire 9 is located above the stepped slot 4, and the thin iron wire 9 is loosely located below the sliding groove 10. The interior of the second threaded groove is conical, and the second threaded groove is located below the thin iron wire 9.
[0023] In a specific embodiment of this utility model, the worker places the limiting block 8 on the surface of the second plastic tube 3 into the sliding groove 10 inside the first plastic tube 1. After moving it to a suitable position, the worker rotates the second plastic tube 3 to move the limiting block 8 into the groove inside the sliding groove 10, facilitating adjustment of this component according to actual conditions. Then, the worker rotates the moving tube 2 inside the second plastic tube 3, causing the moving tube 2 to rotate on the surface of the first threaded groove 7, and moves the moving tube 2 downward inside the second plastic tube 3, so that the moving tube 2 and the sliding groove 10 align with the limiting block. 8. Limit and fix the first plastic tube 1 and the second plastic tube 3, which greatly increases the length of this component. Place this component into the mounting hole, and then use screws to rotate it into the inside of the first plastic tube 1 and the second plastic tube 3, so that the stepped groove 4 and the limiting plate 5 move and expand around. Installing the limiting plate 5 is to increase the grip of this component on the mounting hole and increase the stability of this component. Installing the thin iron wire 9 is to reduce the degree of deformation above the stepped groove 4 and ensure the normal connection of the first plastic tube 1 and the second plastic tube 3.
[0024] In this embodiment: when this component rotates, the connecting block 6 is rotated into the mounting hole, and the connecting block 6 is fixed inside the mounting hole, increasing the installation depth. When the screw moves into the second threaded groove inside the first plastic tube 1, the bottom of the first plastic tube 1 expands outward in an orderly manner.
[0025] The working principle and usage process of this utility model are as follows: After the utility model is installed, the operator places the limiting block 8 on the surface of the second plastic tube 3 into the sliding groove 10 inside the first plastic tube 1. After moving it downwards to a suitable position, the operator rotates the second plastic tube 3, rotating the limiting block 8 and the second plastic tube 3 90 degrees, and moves it downwards to engage with the groove inside the sliding groove 10 for connection. The operator can move the first plastic tube 1 and the second plastic tube 3 to three different connection positions according to the actual situation to facilitate adjustment of the length of this component. After moving it, the operator rotates the moving tube 2 inside the second plastic tube 3, causing the moving tube 2 to rotate on the surface of the first threaded groove 7. The moving tube 2 is then moved downwards inside the second plastic tube 3, close to the top of the first plastic tube 1, so that the moving tube 2 and the sliding groove 10 provide limiting support for the limiting block 8, thus connecting the first plastic tube 1 and the second plastic tube 3. The tube body 3 is fixedly connected to increase the connectivity of this component. The component is placed in the mounting hole, and then screws are used to rotate it into the interior of the first plastic tube body 1 and the second plastic tube body 3, causing the stepped groove 4 and the limiting plate 5 to move and expand outwards. The limiting plate 5 is installed to increase the grip of this component on the mounting hole and increase the stability of this component. The thin iron wire 9 is installed to reduce the degree of deformation above the stepped groove 4 and ensure the normal connection of the first plastic tube body 1 and the second plastic tube body 3. When this component rotates, the connecting block 6 is rotated into the mounting hole to fix the connecting block 6 inside the mounting hole and increase the installation depth. When the screw moves into the second threaded groove inside the first plastic tube body 1, the bottom of the first plastic tube body 1 expands outwards in an orderly manner. Wear-resistant layer and anti-aging layer (for corrosion resistance) are respectively set inside and on the surface of this component to extend the service life of this component.
[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A robust corrosion resistant super long plastic expansion tube assembly comprising a first plastic tube body (1) and a second plastic tube body (3) characterised in that: The inner wall of the first plastic pipe body (1) is provided with sliding clamping grooves (10) on both sides, the surface of the second plastic pipe body (3) is fixedly provided with limiting blocks (8) on both sides, the inside of the second plastic pipe body (3) is provided with a moving pipe (2), the surface of the inside of the second plastic pipe body (3) is provided with a first threaded groove (7), the inside of the first plastic pipe body (1) is fixedly provided with a thin iron wire (9), the surface of the first plastic pipe body (1) is fixedly provided with limiting plates (5) on both sides, and the two sides of the first plastic pipe body (1) are provided with stepped gap grooves (4).
2. A secure corrosion resistant ultralong plastic expansion tube assembly according to claim 1, wherein: The bottom of the first plastic pipe body (1) is fixedly provided with a connecting block (6), the inner wall of the first plastic pipe body (1) is provided with a second threaded groove, and the inner wall of the second plastic pipe body (3) is provided with a third threaded groove.
3. A secure, corrosion resistant, ultra-long plastic expansion tube assembly according to claim 2, wherein: The surface of the connecting block (6) is provided with threads, and the surface of the connecting block (6) is tapered, the surfaces of the first plastic pipe body (1), the moving pipe (2) and the second plastic pipe body (3) are all provided with anti-aging layers, and the inner walls of the second threaded groove and the third threaded groove are both provided with wear-resistant layers.
4. A secure corrosion resistant ultralong plastic expansion tube assembly according to claim 1 or 2, characterized in that: The inner wall of the moving pipe (2) is threadedly connected with the first threaded groove (7), and the moving pipe (2) is located above the limiting block (8).
5. A corrosion resistant, secure, ultra-long plastic expansion tube assembly according to claim 1, wherein: The top of the moving pipe (2) is located in the inside of the second plastic pipe body (3), and the surface of the moving pipe (2) is slidably connected with the second plastic pipe body (3).
6. A corrosion resistant, secure, ultra-long plastic expansion tube assembly according to claim 1, wherein: The sliding clamping grooves (10) are slidably connected with the limiting blocks (8), and the inside of the sliding clamping grooves (10) is provided in a long fishbone shape.
7. A corrosion resistant, secure, ultra-long plastic expansion tube assembly according to claim 2, wherein: The thin iron wire (9) is located above the stepped gap groove (4), and the thin iron wire (9) is in a relaxed state and located below the sliding clamping grooves (10), the inside of the second threaded groove is tapered, and the second threaded groove is located below the thin iron wire (9).