Heat shrink tube
By designing the exhaust groove on the inner surface of the heat shrink tube, the problem of wrinkles and bulges when covering the object to be covered with irregular shapes or bending angles is solved, and better coating effect and product performance are achieved.
Patent Information
- Application Number
- CN202421523516.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-28
AI Technical Summary
When the heat shrink tube is covered with a non-regular shape or with a large bending angle, wrinkles and bulges are prone to occur, which affects the appearance of the product and subsequent assembly and processing performance.
A heat shrink tube with an exhaust groove on the inner surface is designed, and the groove extends in the axial direction of the pipe body and communicates with the exhaust port to ensure that the gas can be discharged smoothly.
Through the design of the exhaust tank, the problem of wrinkles and bulging in irregular shapes or bends is solved, and the coating effect and overall product performance are improved.
Smart Images
Figure CN222813372U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat shrink tubes, in particular to a heat shrink tube with exhaust grooves on the inner surface. Background Art
[0002] Today, heat shrink tubing is widely used in the field of electronic power technology. Heat shrink tubing is an alloy of radiation-crosslinked polyolefins and their polymers. After being irradiated with high-energy rays, it produces a "shape memory" effect, thereby covering various wires and cable joints to achieve the purpose of insulation protection.
[0003] The use of heat shrink tubing has been continuously developed by humans and has spread to various products. For example, the condenser tube of the air conditioner evaporator is covered with heat shrink tubing, which can prevent corrosion and provide insulation. The outer layer of the automobile rubber tube uses heat shrink tubing to provide insulation protection and shaping effect. However, if the shape of the object to be covered is not regular or has a large bending angle, it is easy for the heat shrink tubing to wrinkle at the irregular shape or inside the bend, or bulge due to the inability to discharge gas, which not only affects the appearance of the product but also affects the subsequent assembly and processing performance, causing many inconveniences to the user. Utility Model Content
[0004] The main purpose of the utility model is to provide a heat shrinkable tube, aiming to reduce the phenomenon of wrinkles and bulging when the heat shrinkable tube shrinks an irregularly shaped or angled object to be wrapped.
[0005] To achieve the above purpose, the heat shrinkable tube proposed by the utility model includes:
[0006] tube body;
[0007] The exhaust groove comprises a groove formed on the inner surface of the tube body and an exhaust port arranged at the end of the tube body. The groove extends along the axial direction of the tube body and is communicated with the exhaust port.
[0008] Optionally, the exhaust groove includes a plurality of grooves and a plurality of exhaust ports, and the plurality of grooves are arranged correspondingly to the plurality of exhaust ports.
[0009] Optionally, the plurality of grooves are evenly distributed on the inner surface of the tube body; or, the plurality of grooves are randomly distributed on the inner surface of the tube body.
[0010] Optionally, the cross-sectional area of the groove remains unchanged or gradually increases from an end of the groove close to the tube body to an end of the groove away from the tube body.
[0011] Optionally, the recessed height of the groove is h, the thickness of the tube body is d, and 0.1 mm ≤ h ≤ 0.9 d.
[0012] Optionally, the distance between any two adjacent grooves is k, the radius of the tube body is r, and 0≤k<πr.
[0013] Optionally, the length of the groove is at least one half of the length of the tube body.
[0014] Optionally, an anti-skid layer is provided on the outer surface of the tube body, and the anti-skid layer includes anti-skid protrusions formed on the outer surface of the tube body.
[0015] Optionally, the material of the tube body is one of a polyolefin composite heat shrink material, a fluorine-containing composite heat shrink material, and a rubber composite heat shrink material.
[0016] Optionally, the groove and the tube body are an integrally formed structure.
[0017] The heat shrinkable tube of the utility model includes a tube body and an exhaust groove, the exhaust groove includes a groove formed on the inner surface of the tube body and an exhaust port arranged at the end of the tube body, the groove extends along the axial direction of the tube body and is connected to the exhaust port, so that the gas between the tube body and the object to be coated is discharged to the outside atmosphere through the groove and the exhaust port in turn, which can solve the problem of wrinkles and bulging when the heat shrinkable tube shrinks irregular shapes or objects to be coated with curved corners. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0019] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the heat shrinkable tube provided by the utility model;
[0020] Figure 2 for Figure 1 A top view of
[0021] Figure 3 The top view of another embodiment of the heat shrink tube provided by the utility model.
[0022] Description of Figure Numbers:
[0023]
[0024]
[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0026] 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 of 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.
[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0028] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0029] The use of heat shrink tubing has been continuously developed by humans and has spread to various products. For example, the condenser tube of the air conditioner evaporator is wrapped with a heat shrink tube, which can prevent corrosion and provide insulation. The outer layer of the automobile rubber tube uses a heat shrink tube to provide insulation protection while also providing a shaping effect. However, if the shape of the object to be covered is not regular or has a large bending angle, it is easy for the heat shrink tube to wrinkle at irregular shapes or on the inside of the bend, or bulges may occur due to the inability to discharge gas. Specifically, one end of the heat shrink tube shrinks and fits tightly first, and the gas is not discharged smoothly, resulting in wrinkles on the heat shrink tube at irregular shapes or on the inside of the bend; or, the two ends of the heat shrink tube shrink and fit tightly first, so that the gas between the heat shrink tube and the object to be covered cannot be discharged, resulting in bulging.
[0030] To solve the above problems, the present invention proposes a heat shrink tube 100, please refer to Figures 1 to 3 , including a tube body 1 and an exhaust groove 2, the exhaust groove 2 includes a groove 21 formed on the inner surface of the tube body 1 and an exhaust port 22 arranged at the end of the tube body 1, the groove 21 extends along the axial direction of the tube body 1 and is connected to the exhaust port 22.
[0031] It can be understood that the tube body 1 is sleeved on the object to be coated that is not regular in shape or has a large bending angle, such as the condenser tube of the air conditioner evaporator, for insulation protection. The tube body 1 is a heat shrinkable material, and the exhaust groove 2 includes a groove 21 formed on the inner surface of the tube body 1 and an exhaust port 22 provided at the end of the tube body 1. The exhaust groove 2 includes a groove bottom wall and two groove side walls extending along the axial direction of the tube body 1 and an exhaust port 22 provided at the end of the tube body 1. The groove bottom wall and the two groove side walls enclose a groove 21 opened along the axial direction of the tube body 1. The groove 21 is connected to the exhaust port 22 to form an exhaust channel. In this way, the gas between the tube body 1 and the object to be coated passes through the exhaust channel, that is, sequentially through the groove 21 and the exhaust port 211 to be discharged to the outside atmosphere. Specifically, the groove bottom wall can be a line or a surface, and the groove side wall can be a plane or a curved surface. It can be designed and selected according to actual needs and is not limited here.
[0032] This design can alleviate or solve the problem that when the heat shrink tube is used to wrap an object with an irregular shape or a large bending angle, one end of the heat shrink tube shrinks first, causing the gas to be discharged unsmoothly, resulting in wrinkles on the irregular shape or the inside of the bend. Alternatively, the two ends of the heat shrink tube shrink first, so that the gas between the tube body 1 and the object to be wrapped cannot be discharged and bulges occur. The shape and size of the groove 21 can be designed and selected according to actual needs, such as linear, square or circular, to provide different exhaust channels. Furthermore, extending the groove 21 along the axial direction of the tube body 1 can speed up the exhaust of gas and improve efficiency.
[0033] In order to improve the exhaust performance, in one embodiment of the present utility model, please refer to Figures 1 to 3 The exhaust groove 2 includes a plurality of grooves 21 and a plurality of exhaust ports 22 , and the plurality of grooves 21 and the plurality of exhaust ports 22 are arranged correspondingly.
[0034] It can be understood that the grooves 21 and the exhaust ports 22 are arranged in a one-to-one correspondence to form a plurality of exhaust channels. In this way, the gas can be discharged from the plurality of exhaust channels at the same time, thereby improving the exhaust efficiency.
[0035] In an embodiment of the present invention, the plurality of grooves 21 are evenly distributed on the inner surface of the tube body 1 .
[0036] In an embodiment of the present invention, the plurality of grooves 21 are randomly distributed on the inner surface of the tube body 1 .
[0037] In one embodiment of the present invention, please refer to Figures 1 to 3 From the end of the groove 21 close to the pipe body 1 to the end of the groove 21 away from the pipe body 1, the cross-sectional area of the groove 21 remains unchanged or gradually increases.
[0038] It can be understood that if the cross-sectional area of the groove 21 decreases from one end of the groove 21 close to the tube body 1 to the end of the groove 21 away from the tube body 1, when the heat shrink tube 100 shrinks due to heat, the heat shrink tube 100 at the bottom wall of the exhaust groove 2 and the heat shrink tube 100 at the two groove side walls shrink and get closer, which will quickly squeeze the gas located in the groove 21. However, since the distance between the heat shrink tube 100 at the two groove side walls is gradually decreasing, the two groove side walls of the exhaust groove 2 may shrink and block the opening of the exhaust groove 2 along the axial direction of the tube body 1 and the exhaust port 22, so that the gas remains in the heat shrink tube, resulting in bulging or wrinkles in irregular shapes or on the inside of the bends. If the cross-sectional area of the groove 21 remains unchanged or gradually increases from one end of the groove 21 close to the tube body 1 to the end of the groove 21 far from the tube body 1, when the heat shrink tube 100 shrinks due to heat, the distance between the heat shrink tubes at the two groove side walls gradually increases or remains unchanged. In this way, the squeezed gas can be quickly discharged from the exhaust groove 2 to the opening of the exhaust groove 2 along the axial direction of the tube body 1 and the exhaust port 22 to exhaust the gas and prevent the formation of bulges or irregular shapes or wrinkles on the inside of the bend.
[0039] Furthermore, the depth of the recessed groove 21 is h, the thickness of the tube body 1 is d, 0.1 mm ≤ h ≤ 0.9 d, and the depth of the recessed groove 21 can be selected between 0.1 mm and 90% of the thickness of the tube body 1. If the recessed depth of the recessed groove 21 is too high, the heat shrinkable tube 100 may not shrink tightly when shrinking. If the recessed depth of the recessed groove 21 is too low, it may not provide enough space to set the exhaust groove 2, and the exhaust effect is not good.
[0040] Further, the distance between any two adjacent grooves 21 is k, the radius of the tube body 1 is r, and 0≤k<πr. The distance between the grooves 21 is designed to provide a heat shrink gap, so as to reduce the interference between the two adjacent grooves 21 when the heat shrink tube 100 is heat-shrinked, affecting the heat shrink effect. On this basis, the gap between the grooves 21 should be as large as possible to ensure that there is no obvious gap between the grooves 21, thereby increasing the overall shrinkage effect. Too small a gap may cause interference between the grooves 21, affecting the tightness of the shrinkage. In one embodiment of the utility model, the exhaust groove 2 includes a plurality of grooves 21 and a plurality of exhaust ports 22, and the distance between any two adjacent grooves 21 is 0. In this case, the cross-section of the groove 21 formed by the bottom wall of a groove and the side walls of two grooves that opens along the axial direction of the tube body 1 is serrated. In one embodiment of the utility model, the exhaust groove 2 includes two grooves 21 and two exhaust ports 22, and the two grooves 21 and the two exhaust ports 22 are correspondingly arranged, and the distance between the two grooves 21 is less than πr.
[0041] In order to ensure that there is sufficient exhaust space on the inner surface of the heat shrinkable tube 100, the length of the groove 21 is at least half of the length of the tube body 1. The longer the length of the groove 21, the longer the exhaust channel of the heat shrinkable tube 100. In one embodiment of the utility model, the length of the groove 21 is equal to the length of the tube body 1, so that the groove 21 can pass through the inner surface of the tube body 1, and the exhaust effect is better.
[0042] In order to improve the anti-slip performance of the heat shrink tube 100 , in one embodiment of the present invention, an anti-slip layer is provided on the outer surface of the tube body 1 , and the anti-slip layer includes anti-slip protrusions formed on the outer surface of the tube body 1 .
[0043] It can be understood that the anti-slip layer is a raised pattern or granular structure provided on the tube body 1, which is used to increase the anti-slip performance of the tube body 1. This design can increase the friction when the palm contacts the surface of the heat shrink tube, providing better grip and anti-slip effect. The shape and size of the anti-slip protrusions 21 can be designed and selected according to actual needs, such as linear, square or round, etc., to provide different gripping feelings and anti-slip effects.
[0044] Furthermore, the cross-sectional area of the anti-slip protrusion gradually decreases from the end of the anti-slip protrusion close to the pipe body 1 to the end of the anti-slip protrusion away from the pipe body.
[0045] It is understandable that if the cross-sectional area of the anti-skid protrusion remains unchanged or gradually increases from the end of the anti-skid protrusion close to the tube body 1 to the end of the anti-skid protrusion away from the tube body 1, the anti-skid protrusion will easily produce a large tilt amplitude when the heat shrink tube 100 is held, causing the user's palm to slide relative to the heat shrink tube 100. In addition, if only one side of the anti-skid protrusion protrudes in the direction away from the anti-skid protrusion body, the anti-skid protrusion is also likely to produce a large tilt amplitude when the direction of the friction force generated between the heat shrink tube 100 and the user's palm changes. For this reason, it is configured that the cross-sectional area of the anti-skid protrusion gradually decreases from the end of the anti-skid protrusion close to the tube body 1 to the end of the anti-skid protrusion away from the tube body 1, and the two sides of the anti-skid protrusion protrude in the direction away from the anti-skid protrusion body, so that the anti-skid protrusion is not easy to tilt relative to the tube body 1 when being held, and a greater friction force can be generated between the heat shrink tube and the user's palm, reducing the risk of slipping.
[0046] Furthermore, the anti-skid layer includes a plurality of anti-skid protrusions formed on the outer surface of the tube body, and each anti-skid protrusion is extended along the axial direction of the tube body. When the heat shrink tube 100 is held, the palm of the user will be driven to rotate along the circumferential direction of the tube body 1. At this time, since the anti-skid protrusions are extended along the axial direction of the tube body 1, the maximum contact area with the palm of the user can be provided, and the plurality of anti-skid protrusions are in contact with the palm of the user at the same time, and play an anti-skid role at the same time, and can generate a relatively large friction force between the palm of the user to prevent the palm of the user from sliding relative to the heat shrink tube 100, thereby improving the anti-skid performance of the heat shrink tube 100.
[0047] Specifically, the material of the tube body 1 is one of polyolefin composite heat shrinkable material, fluorine-containing composite heat shrinkable material, and rubber composite heat shrinkable material, and the above materials all have good heat shrinkage, flame retardancy and insulation.
[0048] In order to reduce the production process of the heat shrink tube 100, in one embodiment of the present invention, the groove 21 and the tube body 1 are an integrally formed structure.
[0049] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A heat shrink tube, characterized in that: include: tube body; The exhaust groove comprises a groove formed on the inner surface of the tube body and an exhaust port arranged at the end of the tube body. The groove extends along the axial direction of the tube body and is communicated with the exhaust port.
2. The heat shrinkable tube according to claim 1, characterized in that: The exhaust groove includes a plurality of grooves and a plurality of exhaust ports, and the plurality of grooves are arranged correspondingly to the plurality of exhaust ports.
3. The heat shrink tube according to claim 2, characterized in that: The plurality of grooves are evenly distributed on the inner surface of the tube body; Alternatively, the plurality of grooves are randomly distributed on the inner surface of the tube body.
4. The heat shrinkable tube according to claim 1, characterized in that: From one end of the groove close to the tube body to one end of the groove away from the tube body, the cross-sectional area of the groove remains unchanged or gradually increases.
5. The heat shrinkable tube according to claim 1, characterized in that: The recessed depth of the groove is h, the thickness of the tube body is d, and 0.1 mm ≤ h ≤ 0.9 d.
6. The heat shrinkable tube according to claim 2, characterized in that: The distance between any two adjacent grooves is k, the radius of the tube body is r, and 0≤k<πr.
7. The heat shrinkable tube according to any one of claims 1 to 6, characterized in that: The length of the groove is at least one half of the length of the tube body.
8. The heat shrinkable tube according to any one of claims 1 to 6, characterized in that: The outer surface of the pipe body is provided with an anti-skid layer, and the anti-skid layer includes anti-skid protrusions formed on the outer surface of the pipe body.
9. The heat shrinkable tube according to any one of claims 1 to 6, characterized in that: The material of the tube body is one of a polyolefin composite heat shrink material, a fluorine-containing composite heat shrink material, and a rubber composite heat shrink material.
10. The heat shrinkable tube according to any one of claims 1 to 6, characterized in that: The groove and the tube body are an integrally formed structure.