Heat shrink tube with shielding function

Abstract

The utility model discloses a heat shrink tube with a shielding function, which comprises a heat shrink tube body, an elastic sleeve is arranged in the heat shrink tube body, a soldering tin tube is arranged in the elastic sleeve body, heat shrink sealing rings are arranged at the left end and the right end of the soldering tin tube, a cable is arranged in the soldering tin tube body, an auxiliary sleeve is arranged in the heat shrink tube body, and the auxiliary sleeve is arranged in the heat shrink tube body. The auxiliary sleeve is located between the elastic sleeve and the soldering tin pipe. According to the utility model, wires between two sections of cables are connected by using the characteristic of low melting point of tin, and metal tin not only does not delay electric circulation between the cables, but also well eliminates an electromagnetic field, thereby ensuring that the two sections of cables are not short-circuited due to electric leakage; in addition, the inner wall of the heat-shrinkable tube after heat shrinkage is matched with the auxiliary sleeve and the heat-shrinkable sealing ring, so that a sealing effect is achieved at the joint, the internal joint of the heat-shrinkable tube is protected from being influenced by the external environment, and hidden dangers caused by oxidation corrosion are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrink tubes, in particular to a heat shrink tube with a shielding function. Background Art

[0002] Heat shrink tubing is a special polyolefin heat shrink tubing, which has the functions of high-temperature shrinkage, soft flame retardancy, insulation and corrosion resistance. Common heat shrink tubing includes PVC heat shrink tubing, PET heat shrink tubing and adhesive heat shrink tubing. The material used for heat shrink tubing is in a glassy state at room temperature and becomes a highly elastic state after heating. During production, the heat shrink tubing is heated to a highly elastic state, a load is applied to expand it, and it is rapidly cooled while maintaining the expansion to make it enter a glassy state.

[0003] Heat shrink tubing is widely used to connect two sections of cables. When using the heat shrink tubing, attention should be paid to the barbs on the surface of the connection to prevent the barbs from scratching the heat shrink tubing. In the prior art, in order to eliminate the electromagnetic field between the connection and other electronic components, the wires at the interface are welded and then wrapped with the heat shrink tubing. The heat shrink tubing has good conductivity and thus shields the influence of the electromagnetic field on the use of the cable. However, the precision is not high when the exposed wires are actually welded with a soldering iron, and the shielding effect cannot be fully achieved. In addition, due to the high hardness of the heat shrink tubing after cooling, there is a certain gap between the heat shrink tubing and the cable. After long-term use, it will cause corrosion of the internal structure, affect the use of the cable and increase the loss of electric energy, posing certain safety hazards. Utility Model Content

[0004] The utility model aims to solve the defects of the prior art that the sealing performance is not strong and the internal structure is easily corroded, and proposes a heat shrink tube with a shielding function.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a heat shrinkable tube with a shielding function, comprising a heat shrinkable tube, an elastic sleeve is arranged in the heat shrinkable tube body, a solder tube is arranged in the elastic sleeve body, heat shrinkable sealing rings are arranged at the left and right ends of the solder tube, a cable is arranged in the solder tube body, an auxiliary sleeve is arranged in the heat shrinkable tube body, and the auxiliary sleeve is located between the cable and the solder tube.

[0006] Preferably, the inner wall of the auxiliary sleeve is slidably matched with the outer surface of the solder tube, and the outer surface of the elastic sleeve is slidably matched with the inner surface of the heat shrink tube.

[0007] Preferably, the inner surface of the heat shrinkable sealing ring is slidably connected to the outer surface of the cable, and the outer surface of the heat shrinkable sealing ring is slidably matched to the inner wall of the elastic sleeve.

[0008] Preferably, the heat shrink tube adopts the new GX105 halogen-free flame retardant, and the elastic sleeve adopts an insulator.

[0009] Preferably, the heat shrinkage rate of the heat shrinkable tube is greater than the heat shrinkage rate of the heat shrinkable sealing ring, and the heat shrinkage temperature of the heat shrinkable tube is lower than the melting point of the solder tube.

[0010] Preferably, the heat shrinkable sealing ring is located on the left and right sides of the auxiliary sleeve.

[0011] Preferably, the length of the heat shrink tube is greater than the length of the elastic sleeve, and the length of the elastic sleeve is greater than the length of the auxiliary sleeve.

[0012] The utility model has the following beneficial effects: utilizing the low melting point of tin to connect the wires between two sections of cables, the metal tin neither delays the flow of electricity between the cables nor effectively shields the electromagnetic field, thereby ensuring that the two sections of cables will not have leakage and short circuit, and furthermore, a sealing effect is achieved at the joint between the inner wall of the heat shrink tube after heat shrinkage and the auxiliary sleeve and the heat shrink sealing ring, thereby protecting the internal connection of the heat shrink tube from the influence of the external environment and eliminating the hidden dangers caused by oxidation corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A heat shrink stereogram of a heat shrink tube with shielding function proposed by the utility model;

[0014] Figure 2 A cross-sectional view of a heat shrink tube with shielding function proposed by the utility model;

[0015] Figure 3 The utility model discloses an exploded view of a heat shrink tube with shielding function.

[0016] Legend:

[0017] 1. Heat shrink tube; 2. Elastic sleeve; 3. Solder tube; 4. Heat shrink sealing ring; 5. Cable; 6. Auxiliary sleeve. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] like Figure 1 and Figure 2 As shown, an elastic sleeve 2 is arranged in the heat shrinkable tube 1, a solder tube 3 is arranged in the elastic sleeve 2, and heat shrinkable sealing rings 4 are arranged at the left and right ends of the solder tube 3. After the heat shrinkable tube 1 is heated and shrunk, the connection is sealed in cooperation with the elastic sleeve 2 and the heat shrinkable sealing ring 4. A cable 5 is arranged in the solder tube 3, and the auxiliary sleeve 6 is located between the elastic sleeve 2 and the solder tube 3. The solder tube 3 is heated, and the molten tin is wrapped and connected at the connection under the action of the auxiliary sleeve 6 by utilizing the low melting point of tin. The auxiliary sleeve 6 is arranged in the heat shrinkable tube 1, and the auxiliary sleeve 6 assists in fixing the action position of the solder tube 3 and has an insulating effect. The auxiliary sleeve 6 arranges and constrains the connection to prevent burrs on the cable 5 from scratching the heat shrinkable tube 1, and fixes the action position of the solder tube 3.

[0021] like Figure 2 and Figure 3As shown, the inner wall of the auxiliary sleeve 6 is slidably matched with the outer surface of the solder tube 3, and the outer surface of the elastic sleeve 2 is slidably matched with the inner surface of the heat shrink tube 1, which facilitates the sliding connection between the inner surface of the heat shrink sealing ring 4 and the outer surface of the cable 5. The outer surface of the heat shrink sealing ring 4 is slidably matched with the inner wall of the elastic sleeve 2. The heat shrink tube 1 adopts the new GX105 halogen-free flame retardant. The flame retardant material has the characteristics of low smoke, halogen-free, heavy metal-free, non-toxic, harmless, non-melting, non-drip, and non-flammable, and has very good flame retardant performance. The elastic sleeve 2 adopts an insulator to prevent the cable 5 from being used. During the process, there is leakage at the connection. The heat shrinkage rate of the heat shrinkable tube 1 is greater than that of the heat shrinkage sealing ring 4. The heat shrinkage sealing ring 4 is first shrunk and then the heat shrinkable tube 1 is shrunk. Therefore, the heat shrinkage sealing ring 4 will not be deformed during the secondary heat shrinkage process. The heat shrinkage temperature of the heat shrinkable tube 1 is lower than the melting point of the solder tube 3, and the tin will not melt and flow during the subsequent two heat shrinkage processes. The heat shrinkage sealing ring is located at the left and right ends of the auxiliary sleeve. The length of the heat shrinkable tube 1 is greater than that of the elastic sleeve 2. The length of the elastic sleeve 2 is greater than that of the auxiliary sleeve. The elastic sleeve 2 can wrap the auxiliary sleeve 6 inside.

[0022] Working principle: When in use, put the entire heat shrink tube 1 with shielding function on the cable 5, move the solder tube 3 to the connection position of the two sections of the cable 5, and then move the auxiliary sleeve 6 to the outside of the position of the solder tube 3. The auxiliary sleeve 6 assists in fixing the position of the solder tube 3 and plays an insulating effect. Use a heating device to heat the solder tube 3. The melting point of tin is low. After heating and melting, the tin connects the two sections of the cable 5. This method replaces the traditional electric soldering iron welding method, with stronger wrapping and conductivity, and shields the electromagnetic field generated between the cable ends to ensure that the cable can be used normally and efficiently. After the tin cools and solidifies, move the two heat shrink sealing rings 4 to the left and right ends of the solder tube 3, and heat the heat shrink sealing rings 4 to make them tightly sleeved on the cable 5. The heat shrinkable sealing ring 4 cooperates with the auxiliary sleeve 6 to form a sealing structure for the connection, and the elastic sleeve 2 is moved to the same position on the cable 5. Finally, the heat shrinkable tube 1 is sleeved at the same position, and the heat shrinkable tube 1 is evenly heated to make it tightly sleeved on the connection of the cable 5. The elastic sleeve 2 and the heat shrinkable sealing ring 4 are used in coordination with the heat shrinkable tube 1 after heat shrinkage to achieve a sealing effect, thereby ensuring that the internal structure of the connection is not corroded by the outside world. Here, the heat shrinkable tube 1 adopts a flame retardant material, which has the characteristics of low smoke, no halogen, no heavy metal, non-toxic, harmless, non-melting, non-drip, and non-flammable. It has very good flame retardant properties and will not cause secondary damage to the human body, thereby achieving the purpose of fireproof insulation, waterproof and moisture-proof, and enhancing the safety of the cable 5 when in use.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat shrinkable tube with shielding function, comprising a heat shrinkable tube (1), characterized in that: An elastic sleeve (2) is arranged inside the heat shrink tube (1), a solder tube (3) is arranged inside the elastic sleeve (2), heat shrink sealing rings (4) are arranged at both ends of the solder tube (3), a cable (5) is arranged inside the solder tube (3), and an auxiliary sleeve (6) is arranged inside the heat shrink tube (1), and the auxiliary sleeve (6) is located between the elastic sleeve (2) and the solder tube (3).

2. The heat shrink tube with shielding function according to claim 1, characterized in that: The inner wall of the auxiliary sleeve (6) is slidably matched with the outer surface of the solder tube (3), and the outer surface of the elastic sleeve (2) is slidably matched with the inner surface of the heat shrink tube (1).

3. The heat shrink tube with shielding function according to claim 1, characterized in that: The inner surface of the heat shrinkable sealing ring (4) is slidably connected to the outer surface of the cable (5), and the outer surface of the heat shrinkable sealing ring (4) is slidably matched to the inner wall of the elastic sleeve (2).

4. The heat shrink tube with shielding function according to claim 1, characterized in that: The heat shrink tube (1) adopts the new GX105 halogen-free flame retardant, and the elastic sleeve (2) adopts an insulator.

5. The heat shrink tube with shielding function according to claim 1, characterized in that: The heat shrinkage rate of the heat shrinkable tube (1) is greater than the heat shrinkage rate of the heat shrinkable sealing ring (4), and the heat shrinkage temperature of the heat shrinkable tube (1) is lower than the melting point of the solder tube (3).

6. The heat shrink tube with shielding function according to claim 1, characterized in that: The heat shrinkable sealing ring (4) is located on the left and right sides of the auxiliary sleeve (6).

7. The heat shrink tube with shielding function according to claim 1, characterized in that: The length of the heat shrink tube (1) is greater than the length of the elastic sleeve (2), and the length of the elastic sleeve (2) is greater than the length of the auxiliary sleeve (6).

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