Silica gel heat shrink tube

Abstract

The utility model discloses a silica gel heat shrink tube in the technical field of heat shrink tubes, which comprises an inner tube, the inner wall of the inner tube is provided with a spiral inner groove, the groove wall of the inner groove is in a cambered surface shape, the outer side of the inner tube is sleeved with an outer tube, the outer surface of the inner tube is provided with a plurality of protruding parts, the cross section of each protruding part is in a rectangular shape, and the cross section of each protruding part is in a rectangular shape. According to the heat shrink tube, the protrusions are arranged on the outer surface of the inner tube, the outer tube is arranged on the outer side of the inner tube, double protection is achieved, the impact resistance of the heat shrink tube can be greatly improved, the spiral inner grooves are formed in the inner wall of the inner tube, and therefore the heat shrink tube is not prone to falling off. The inner groove can effectively eliminate stress, so that the bending resistance of the heat shrink tube is improved, and the probability of breakage is reduced.

Description

Technical Field

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

[0002] Heat shrink tubing is a special polyolefin heat shrink tubing. Most heat shrink tubing on the market is made of high-quality soft cross-linked polyolefin material on the outer layer and hot melt adhesive on the inner layer. The outer layer has the characteristics of insulation, corrosion resistance, and wear resistance, and the inner layer has the advantages of low melting point, waterproof sealing, and high adhesion. Due to its high-temperature shrinkage, soft flame retardant, and insulation and corrosion resistance, heat shrink tubing is widely used in insulation protection of various wiring harnesses, solder joints, and inductors, as well as rust and corrosion protection of metal rods.

[0003] Since collisions and impacts are prone to occur during daily use, existing heat shrink tubes have weak impact resistance and poor protection for wires and metal pipes. When a collision occurs, they are prone to breakage or internal wire damage. Utility Model Content

[0004] In order to overcome the deficiencies of the existing technical solutions, the utility model provides a silicone heat shrink tube, which can effectively solve the technical problems that the existing heat shrink tube has weak impact resistance, poor protection for wires and metal pipelines, and is prone to breakage or internal wire damage in the event of a collision.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a silicone heat shrink tube, comprising an inner tube, the inner wall of the inner tube is provided with a spiral inner groove, the groove wall of the inner groove is in an arc shape, an outer tube is sleeved on the outer side of the inner tube, and the outer surface of the inner tube is provided with a plurality of protrusions, the cross-section of each protrusion is rectangular, and there is a gap between two adjacent protrusions to form a rectangular empty groove.

[0006] Preferably, the outer tube is in a ring shape, and the inner wall of the outer tube does not contact the groove wall of the rectangular slot, and the inner tube is provided with a plurality of evenly distributed holes, and the holes are connected to the rectangular slot.

[0007] Preferably, the inner wall of the outer tube fits with the groove wall of the rectangular hollow groove, and a plurality of convex patterns are formed on the outer surface of the outer tube.

[0008] Preferably, the outer surface of the outer tube is coated with a layer of functional coating, and the functional coating is an anti-aging coating or a wear-resistant coating or a heat-insulating coating.

[0009] Preferably, the plurality of protrusions are distributed in a circular array with the axis of the inner tube as the center.

[0010] Preferably, each of the protrusions is extended along the length direction of the inner tube.

[0011] Preferably, the protrusion and the inner tube are an integrated structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By arranging a protrusion on the outer surface of the inner tube and arranging an outer tube on the outside of the inner tube, double protection is achieved, which can greatly improve the impact resistance of the heat shrinkable tube. In addition, a spiral inner groove is arranged on the inner wall of the inner tube, which can effectively eliminate stress, thereby improving the bending resistance of the heat shrinkable tube and reducing the probability of breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a first embodiment of a silicone heat shrink tube of the utility model;

[0015] Figure 2 This is a heat shrink state diagram of a silicone heat shrink tube embodiment 1 of the utility model;

[0016] Figure 3 The utility model is a schematic structural diagram of a second embodiment of a silicone heat shrink tube.

[0017] Numbers in the figure:

[0018] 1-functional coating, 2-inner groove, 3-inner tube, 4-raised portion, 5-outer tube, 6-rectangular slot, 7-texture, 8-terminal. DETAILED DESCRIPTION

[0019] 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.

[0020] Embodiment 1:

[0021] like Figure 1 As shown, a silicone heat shrink tube comprises an inner tube 3, the inner wall of the inner tube 3 is provided with a spiral inner groove 2, the groove wall of the inner groove 2 is in an arc shape, the outer side of the inner tube 3 is sleeved with an outer tube 5, the outer surface of the inner tube 3 is provided with a plurality of protrusions 4, the plurality of protrusions 4 are distributed in a circular array with the axis of the inner tube 3 as the center, each of the protrusions 4 is extended along the length direction of the inner tube 3, the protrusions 4 and the inner tube 3 are an integral structure, the cross section of each of the protrusions 4 is rectangular, and there is a gap between two adjacent protrusions 4 to form a rectangular empty groove 6;

[0022] The outer tube 5 is in a ring shape, and the inner wall of the outer tube 5 does not contact the groove wall of the rectangular slot 6. The inner tube 3 is provided with a plurality of evenly distributed holes, and the holes are interconnected with the rectangular slot 6. During use, the heat of the wire inside the heat shrink tube can be dissipated through the holes and the rectangular slot 6, which can effectively prevent heat from accumulating inside. The outer surface of the outer tube 5 is coated with a layer of functional coating 1, and the functional coating 1 is an anti-aging coating, a wear-resistant coating, or a heat-insulating coating.

[0023] Usage: Put the silicone heat shrink tube on the terminal 8. After ensuring that the silicone heat shrink tube completely covers the terminal 8, use a hot air gun to heat the silicone heat shrink tube to shrink it. Figure 2 As shown, after the front half of the silicone heat shrink tube is heated by the hot air gun, the silicone heat shrink tube is completely shrunk and tightly wraps the terminal 8.

[0024] Embodiment 2:

[0025] like Figure 3 As shown, a silicone heat shrink tube comprises an inner tube 3, the inner wall of the inner tube 3 is provided with a spiral inner groove 2, the groove wall of the inner groove 2 is in an arc shape, the outer side of the inner tube 3 is sleeved with an outer tube 5, the outer surface of the inner tube 3 is provided with a plurality of protrusions 4, the plurality of protrusions 4 are distributed in a circular array with the axis of the inner tube 3 as the center, each of the protrusions 4 is extended along the length direction of the inner tube 3, the protrusions 4 and the inner tube 3 are an integral structure, the cross section of each of the protrusions 4 is rectangular, and there is a gap between two adjacent protrusions 4 to form a rectangular empty groove 6;

[0026] The inner wall of the outer tube 5 fits with the groove wall of the rectangular hollow groove 6, and a plurality of raised patterns 7 are formed on the outer surface of the outer tube 5, which can further improve the impact resistance of the heat shrinkable tube. The outer surface of the outer tube 5 is coated with a layer of functional coating 1, which is an anti-aging coating, a wear-resistant coating, or a heat-insulating coating.

[0027] Compared with the traditional technology: by arranging a protrusion 4 on the outer surface of the inner tube 3 and arranging an outer tube 5 on the outside of the inner tube 3, double protection is achieved, which can greatly improve the impact resistance of the heat shrinkable tube, and a spiral inner groove 2 is arranged on the inner wall of the inner tube 3. The inner groove 2 can effectively eliminate stress, thereby improving the bending resistance of the heat shrinkable tube and reducing the probability of breakage.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A silicone heat shrink tube, comprising an inner tube, characterized in that: The inner wall of the inner tube is provided with a spiral inner groove, the groove wall of the inner groove is in an arc shape, the outer side of the inner tube is sleeved with an outer tube, and the outer surface of the inner tube is provided with a plurality of protrusions, each of which has a rectangular cross-section, and there is a gap between two adjacent protrusions to form a rectangular empty groove.

2. A silicone heat shrink tube according to claim 1, characterized in that: The outer tube is in a ring shape, and the inner wall of the outer tube does not contact the groove wall of the rectangular empty groove. The inner tube is provided with a plurality of evenly distributed empty holes, and the empty holes are connected with the rectangular empty groove.

3. The silicone heat shrink tube according to claim 1, characterized in that: The inner wall of the outer tube fits with the groove wall of the rectangular hollow groove, and a plurality of convex patterns are formed on the outer surface of the outer tube.

4. A silicone heat shrink tube according to any one of claims 1 to 3, characterized in that: The outer surface of the outer tube is coated with a layer of functional coating, and the functional coating is an anti-aging coating, a wear-resistant coating, or a heat-insulating coating.

5. The silicone heat shrink tube according to claim 1, characterized in that: The plurality of protrusions are distributed in a circular array with the axis of the inner tube as the center.

6. The silicone heat shrink tube according to claim 1, characterized in that: Each of the protrusions is extended along the length direction of the inner tube.

7. The silicone heat shrink tube according to claim 1, characterized in that: The protrusion and the inner tube are an integrated structure.

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