Teflon heat shrink tube

Abstract

The utility model relates to the technical field of teflon tube application, and discloses a teflon heat shrink tube, which comprises a wear-resistant layer and a second teflon tube, a waterproof layer is fixedly arranged on the inner wall of the wear-resistant layer, a thermal insulation layer is fixedly arranged on the inner wall of the waterproof layer, a first teflon tube is fixedly arranged on the inner wall of the thermal insulation layer, and a second teflon tube is fixedly arranged on the inner wall of the first teflon tube. A plurality of sections of connecting metal wires are fixedly arranged between the first teflon pipe and the second teflon pipe, and a free connecting wire is fixedly arranged between every two sections of connecting metal wires, so that the high-temperature-resistant effect is improved through the first teflon pipe and the second teflon pipe, and through the connecting metal wires between the two teflon pipes, the high-temperature-resistant effect is improved; and the free connecting wire between the two sections of connecting metal wires provides ductility for the connecting metal wires, and through the mode that the thermochromic strip is directly connected with the thermal insulation layer, maintenance personnel are more visually informed through color change of the thermochromic strip after the internal teflon pipe is broken.

Description

Technical Field

[0001] The utility model relates to the technical field of Teflon tube applications, in particular to a Teflon heat shrink tube. Background Art

[0002] Teflon heat shrink tubing is a high-performance heat shrink tubing made of polytetrafluoroethylene (PTFE). PTFE, also known as Teflon or the king of plastics, has extremely high chemical stability, high temperature resistance, low friction coefficient, and excellent electrical insulation properties. Before heating, Teflon heat shrink tubing has a large inner and outer diameter. When heated to a certain temperature, the tubing will shrink evenly along the radial direction, clinging to the wrapped object, thereby providing insulation, protection, and sealing.

[0003] Existing Teflon heat shrink tubing is usually single-layer or double-layer, but the strength of Teflon itself is not very high, and it is easy to break during use, affecting the effect. In addition, the length of the pipe is usually long. When a break occurs, maintenance personnel spend a long time to find the break, which in turn increases the repair time and increases the impact of the break. Utility Model Content

[0004] The purpose of the present utility model is to provide a Teflon heat shrink tube in order to solve the above-mentioned problem. By adding multiple sections of connecting metal wires and free connecting wires, the inner side of the Teflon tube is provided with higher strength while improving ductility. At the same time, it is directly connected to the thermal insulation layer through the thermochromic strip. When the internal Teflon tube is broken, the thermochromic strip will prompt the maintenance personnel the specific location of the break.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] The Teflon heat shrink tube includes: a wear-resistant layer and a second Teflon tube. The inner wall of the wear-resistant layer is fixedly provided with a waterproof layer, the inner wall of the waterproof layer is fixedly provided with a thermal insulation layer, the inner wall of the thermal insulation layer is fixedly provided with a first Teflon tube, multiple sections of connecting metal wires are fixedly provided between the first Teflon tube and the second Teflon tube, free connecting wires are fixedly provided between the multiple sections of the connecting metal wires, and two thermochromic strips are fixedly provided through the surface of the wear-resistant layer.

[0007] Furthermore, the thermochromic strip passes through the wear-resistant layer and is connected to the thermal insulation layer.

[0008] Furthermore, the connecting metal wire is wound around the outer wall of the second Teflon tube and is also wound around the inner wall of the first Teflon tube.

[0009] Furthermore, the connecting metal wire is wound twice between the first Teflon tube and the second Teflon tube and then connected to the free connecting wire.

[0010] Furthermore, the free connecting wire is not connected to the first Teflon tube and the second Teflon tube, and the diameter of the free connecting wire is consistent with the diameter of the connecting metal wire.

[0011] Furthermore, the thermal insulation layer is made of plastic material.

[0012] Furthermore, the waterproof layer is made of silicone rubber material.

[0013] Furthermore, the wear-resistant layer is formed by winding and connecting alloy steel wire materials.

[0014] With the above structure, the wear-resistant layer formed by winding the alloy steel wire has the advantages of high wear resistance, impact resistance, high temperature resistance and oxidation resistance, good processing performance and extended service life. The silicone rubber waterproof coating used in the waterproof layer can form a continuous, elastic, seamless coating waterproof layer, which effectively prevents moisture penetration and has high tensile strength, adapting to the heat shrinkage of the Teflon tube. The plastic material used in the insulation layer can be processed and formed by various methods and has excellent processing performance. At the same time, when the plastic material is used for insulation construction, the installation process is simple and does not require complicated preparation work, and the construction can be completed quickly. The connecting metal wire between the first Teflon tube and the second Teflon tube provides higher stability for the Teflon tube, making the Teflon tube have higher toughness. At the same time, the retractable ductility of the free connecting wire between the two connecting metal wires makes it easy for the Teflon tube to maintain strength when deformed and can also facilitate deformation. After the Teflon tube breaks, the thermochromic strip extends heat to the insulation layer, thereby changing the color of the thermochromic strip, reminding the staff that the Teflon tube is broken, which is convenient for the staff to maintain maintenance.

[0015] In summary, the beneficial effects of the present invention are as follows: by providing two layers of Teflon tubes, the efficiency of high temperature resistance is improved; by using the connecting wire between the first Teflon tube and the second Teflon tube, the strength of the Teflon tube is improved; and by using the free connecting wire, an extendable space is provided for the Teflon tube, which facilitates the utilization of the inherent characteristics of the Teflon tube.

[0016] The thermochromic strip is directly connected to the insulation layer. When the Teflon tube is deformed too much and ruptures, the insulation layer is directly connected to the thermochromic strip, which is in direct contact with the temperature inside the Teflon tube, causing the thermochromic strip to change color. This directly informs maintenance personnel of the repair location and reduces the time they spend searching for the rupture. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a front view of the utility model;

[0019] Figure 2 It is a side sectional isometric view of the present invention;

[0020] Figure 3 This is an axonometric view of the product of the present utility model when it is not fully installed;

[0021] Figure 4 It is a side view of the present utility model.

[0022] The following are the descriptions of the reference numerals:

[0023] 1. Wear-resistant layer; 2. Waterproof layer; 3. Thermal insulation layer; 4. First Teflon tube; 5. Connecting wire; 6. Free connecting wire; 7. Second Teflon tube; 8. Thermochromic strip. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1-4 As shown, the utility model provides a Teflon heat shrinkable tube, comprising: a wear-resistant layer 1 and a second Teflon tube 7, the inner wall of the wear-resistant layer 1 is fixedly provided with a waterproof layer 2, the inner wall of the waterproof layer 2 is fixedly provided with a thermal insulation layer 3, the inner wall of the thermal insulation layer 3 is fixedly provided with a first Teflon tube 4, a plurality of sections of connecting metal wires 5 are fixedly provided between the first Teflon tube 4 and the second Teflon tube 7, free connecting wires 6 are fixedly provided between the plurality of sections of the connecting metal wires 5, two thermochromic strips 8 are fixedly provided through the surface of the wear-resistant layer 1, and the thermochromic strip 8 passes through the wear-resistant layer 1 and is connected to the thermal insulation layer 3.

[0026] See also Figures 1-4As shown, the above technical solution is adopted, and a double-layer arrangement is formed by the first Teflon tube 4 and the second Teflon tube 7, thereby improving the service life and strength of the product. At the same time, the multi-segment connecting wire 5 arranged between the first Teflon tube 4 and the second Teflon tube 7 increases the strength of the two Teflon tubes. The free connecting wire 6 arranged between each of the multi-segment connecting wire 5 provides a stretchable space for the two connecting wires 5 to adapt to the thermal shrinkage characteristics of the Teflon tube. The wear-resistant layer 1 is composed of a wound alloy steel wire to improve wear resistance. The waterproof layer 2 is made of silicone rubber waterproof coating, which is quick to process and simple to install. It also has tensile strength and adapts to the thermal shrinkage characteristics of the Teflon tube. The plastic material used in the thermal insulation layer 3 is simple to install as a whole, without the need for complex additional steps, and improves processing and construction efficiency while providing insulation. The thermochromic strip 8 is directly connected to the thermal insulation layer 3. When the internal Teflon tube ruptures, the high temperature directly contacts the thermal insulation layer 3. The thermochromic strip 8 and the thermal insulation layer 3 are in direct contact with the heat and change color, providing a prompt to maintenance personnel.

[0027] See also Figures 1-4 As shown, the connecting wire 5 is wrapped around the outer wall of the second Teflon tube 7 and the inner wall of the first Teflon tube 4. The connecting wire 5 is wrapped twice between the first Teflon tube 4 and the second Teflon tube 7 and then connected to the free connecting wire 6. The free connecting wire 6 is not connected to the first Teflon tube 4 and the second Teflon tube 7, and the diameter of the free connecting wire 6 is consistent with the diameter of the connecting wire 5.

[0028] Using the above embodiment, the connecting wire 5 is wrapped around the inner wall of the first Teflon tube 4 and the outer wall of the second Teflon tube 7, the two ends of the free connecting wire 6 are connected to the two connecting wires 5, and the outer wall of the free connecting wire 6 is not connected to the first Teflon tube 4 and the second Teflon tube 7.

[0029] See also Figures 1-4 As shown, the thermal insulation layer 3 is made of plastic material, the waterproof layer 2 is made of silicone rubber material, and the wear-resistant layer 1 is made of alloy steel wire material wound and connected.

[0030] During use, the plastic material used in the thermal insulation layer 3 is simple to process and does not require complex processing methods, thereby improving the overall processing speed. The waterproof layer 2 uses a smear-type waterproof layer 2, which is quick to install and can form a continuous, seamless coating. At the same time, due to the elastic properties of silicone itself, it can adapt to the heat shrinkage of Teflon tubes. The wear-resistant layer 1 is composed of alloy steel wire winding, which improves the strength of the wear-resistant layer 1 and makes it stretchable and ductile, thereby improving the ductility of this product.

[0031] With the above structure, the wear-resistant layer 1 formed by winding the alloy steel wire has the advantages of high wear resistance, impact resistance, high temperature resistance and oxidation resistance, good processing performance and extended service life. The silicone rubber waterproof coating used in the waterproof layer 2 can form a continuous, elastic, seamless coating waterproof layer 2, which effectively prevents moisture penetration and has high tensile strength to adapt to the thermal shrinkage of the Teflon tube. The plastic material used in the thermal insulation layer 3 can be processed and formed by various methods and has excellent processing performance. At the same time, when the plastic material is used for thermal insulation construction, the installation process is simple and no complicated preparation work is required, and the construction can be completed quickly. The connecting wire 5 between the first Teflon tube 4 and the second Teflon tube 7 provides high stability for the Teflon tube, making the Teflon tube have high toughness. At the same time, the flexible ductility of the free connecting wire 6 between the two connecting wires 5 facilitates the Teflon tube to maintain strength and deform easily when deformed. After the Teflon tube ruptures, the thermochromic strip 8 extends heat to the thermal insulation layer 3, thereby changing the color of the thermochromic strip 8, reminding the staff that the Teflon tube is ruptured, which facilitates the staff's maintenance.

[0032] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. Teflon heat shrink tubing, characterized in that: include: A wear-resistant layer (1) and a second Teflon tube (7); a waterproof layer (2) is fixedly provided on the inner wall of the wear-resistant layer (1); a thermal insulation layer (3) is fixedly provided on the inner wall of the waterproof layer (2); a first Teflon tube (4) is fixedly provided on the inner wall of the thermal insulation layer (3); a plurality of connecting metal wires (5) are fixedly provided between the first Teflon tube (4) and the second Teflon tube (7); free connecting wires (6) are fixedly provided between each of the plurality of connecting metal wires (5); and two thermochromic strips (8) are fixedly provided through the surface of the wear-resistant layer (1).

2. The Teflon heat shrink tubing according to claim 1, wherein: The thermochromic strip (8) penetrates the wear-resistant layer (1) and is connected to the thermal insulation layer (3).

3. The Teflon heat shrink tubing according to claim 1, characterized in that: The connecting metal wire (5) is wound around the outer wall of the second Teflon tube (7) and the inner wall of the first Teflon tube (4).

4. The Teflon heat shrink tubing according to claim 1, wherein: The connecting metal wire (5) is wound twice between the first Teflon tube (4) and the second Teflon tube (7) and then connected to the free connecting wire (6).

5. The Teflon heat shrink tubing according to claim 1, characterized in that: The free connecting wire (6) is not connected to the first Teflon tube (4) and the second Teflon tube (7), and the diameter of the free connecting wire (6) is consistent with the diameter of the connecting metal wire (5).

6. The Teflon heat shrink tubing according to claim 1, characterized in that: The thermal insulation layer (3) is made of plastic material.

7. The Teflon heat shrink tubing according to claim 1, characterized in that: The waterproof layer (2) is made of silicone rubber material.

8. The Teflon heat shrink tubing according to claim 1, characterized in that: The wear-resistant layer (1) is formed by winding and connecting alloy steel wire materials.

Images