Anti-cracking multilayer composite heat-shrinkable tube structure

Abstract

The utility model discloses a kind of anti-cracking multilayer composite heat shrink tube structures, it is related to electric power cable technical field, including inner tube, buffer layer set in inner tube outer layer, protective layer set in buffer layer outside and ultraviolet protection shell set in protective layer outside, still include heat dissipation component, heat dissipation component includes the heat dissipation port being opened in ultraviolet protection shell, one side of ultraviolet protection shell close to heat dissipation port is rotatably connected with first rotating shaft, first rotating shaft is rotatably connected with rotating plate on, rotating plate and the size of heat dissipation port are same, drive component, drive component includes the limiting slot being opened in protective layer, limiting slot is slidably connected with limiting block, limiting block is provided with two, two limiting block is connected with memory metal sheet, memory metal sheet and rotating plate contact, by setting heat dissipation component, it can be automatically ventilated and heat dissipated when heat shrink tube temperature is too high while ultraviolet is isolated, and after tilt, baffle can still block the irradiation of ultraviolet.

Description

Technical Field

[0001] This utility model relates to the field of power cable technology, specifically to a crack-resistant multi-layer composite heat shrink tubing structure. Background Technology

[0002] As a key protective component for cables and connectors, heat shrink tubing must withstand long-term exposure to complex environmental conditions such as thermal cycling, mechanical stress, ultraviolet radiation, and chemical corrosion.

[0003] Existing technologies use UV baffles to block UV rays. However, the baffles are fully enclosed, which blocks the air convection channel and prevents the hot air around the equipment from dissipating. Especially in high-temperature environments, heat accumulation can cause internal damage exceeding the tolerance threshold of electronic components. Furthermore, the close fit between the baffle and the equipment forms a thermal resistance layer, reducing the efficiency of heat conduction and dissipation. Long-term operation may lead to a chain of failures such as softening of cable insulation and poor interface contact. Therefore, we propose a crack-resistant multi-layer composite heat shrink tubing structure. Utility Model Content

[0004] The purpose of this invention is to provide a crack-resistant multilayer composite heat shrink tubing structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crack-resistant multi-layer composite heat shrink tubing structure, comprising an inner tube, a buffer layer disposed on the outer layer of the inner tube, a protective layer disposed on the outer side of the buffer layer, and an ultraviolet protective shell disposed on the outer side of the protective layer, and further comprising:

[0006] A heat dissipation assembly includes a heat dissipation vent on a UV protection shell, a first rotating shaft is rotatably connected to the side of the UV protection shell near the heat dissipation vent, and a rotating plate is rotatably connected to the first rotating shaft, the rotating plate being the same size as the heat dissipation vent.

[0007] The driving component includes a limiting groove formed on the protective layer, a limiting block slidably connected to the limiting groove, two limiting blocks are provided, and memory metal sheets are connected to the two limiting blocks, the memory metal sheets contacting the rotating plate.

[0008] Furthermore, the ultraviolet protective shell is provided with a snap-fit ​​assembly, which includes a second rotating shaft rotatably connected to the top of the ultraviolet protective shell, a torsion spring connected to the second rotating shaft, an extension plate connected to the torsion spring, a support plate provided on the protective layer, a rotating rod rotatably connected to the support plate, a clamping plate connected to the rotating rod, and a limit member connected to the bottom of the extension plate.

[0009] The above technical solution allows for quick installation and removal of the UV protection shell and the protective layer by using a snap-fit ​​assembly.

[0010] Furthermore, a spring-loaded assembly is provided on the side of the protective layer near the clamping plate. The spring-loaded assembly includes a connecting plate connected to the clamping plate, and a first spring is connected between the connecting plate and the protective layer.

[0011] The above technical solution is adopted: by setting a rebound component, when the limiting component loses the squeezing force on the clamping plate, the clamping plate can automatically spring back to its original position to position the limiting component by the elastic force of the first spring.

[0012] Furthermore, a buffer assembly is provided on the inner tube. The buffer assembly includes two sliding sleeves that are slidably fitted on the inner tube. The top of each sliding sleeve is rotatably connected to the inner wall of the buffer layer with a connecting rod.

[0013] The above technical solution involves setting up a buffer component to absorb and buffer the impact force when the heat shrink tubing is subjected to external force.

[0014] Furthermore, a fixing plate is connected to the bottom of the sliding sleeve, and a second spring is connected to the fixing plate, the second spring having a damping mechanism.

[0015] The above technical solution is adopted: by setting a second spring and damping, the sliding sleeve will squeeze the second spring and internal damping during the sliding process, and improve the buffering effect through elastic deformation.

[0016] Furthermore, a corrugated tube is sleeved on the outside of the buffer layer, and the corrugated tube is in contact with the inner wall of the protective layer.

[0017] The above technical solution is adopted: by setting a corrugated pipe, the flexibility of the corrugated pipe can adapt to equipment vibration or thermal expansion and contraction, and avoid gaps caused by deformation.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0019] In this invention, by setting up a heat dissipation component, it can automatically ventilate and dissipate heat when the temperature of the heat shrink tubing is too high while blocking ultraviolet rays. Moreover, the tilted baffle can still block ultraviolet radiation. This solves the problem that in the prior art, ultraviolet baffles are set up to block ultraviolet rays, but the baffle adopts a fully enclosed design, which will block the air convection channel and prevent the hot air around the equipment from dissipating. Especially in high-temperature environments, heat accumulation can cause internal damage that exceeds the tolerance threshold of electronic components. In addition, the close installation of the baffle and the equipment will form a thermal resistance layer, which will reduce the efficiency of heat conduction and heat dissipation. Long-term operation may cause a chain of failures such as softening of cable insulation and poor interface contact. Attached Figure Description

[0020] Figure 1This is a front view of a crack-resistant multilayer composite heat shrink tubing structure.

[0021] Figure 2 This is a side view of a crack-resistant multilayer composite heat shrink tubing structure.

[0022] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0023] Figure 4 This is a structural diagram of a limiting component in a crack-resistant multilayer composite heat shrink tubing structure.

[0024] Figure 5 This is a breakdown diagram of a crack-resistant multilayer composite heat shrink tubing structure.

[0025] Numbering on the map:

[0026] 1. Inner tube; 2. Buffer layer; 3. Protective layer; 4. UV protection shell;

[0027] 5. Heat dissipation assembly; 51. Heat dissipation vent; 52. First rotating shaft; 53. Rotating plate;

[0028] 6. Drive component; 61. Memory metal sheet; 62. Limiting groove; 63. Limiting block;

[0029] 7. Snap-fit ​​assembly; 71. Second rotating shaft; 72. Torsion spring; 73. Extension plate; 74. Limiting component; 75. Support plate; 76. Rotating rod; 77. Clamping plate;

[0030] 8. Rebound assembly; 81. Connecting plate; 82. First spring;

[0031] 9. Buffer assembly; 91. Sliding sleeve; 92. Fixing plate; 93. Second spring; 94. Damping;

[0032] 10. Corrugated pipe. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figures 1-5 As shown, this utility model provides a technical solution: a crack-resistant multi-layer composite heat shrink tubing structure, including an inner tube 1, a buffer layer 2 disposed on the outer layer of the inner tube 1, a protective layer 3 disposed on the outer side of the buffer layer 2, and an ultraviolet protective shell 4 disposed on the outer side of the protective layer 3, and further including:

[0035] The heat dissipation component 5 includes a heat dissipation vent 51 opened on the ultraviolet protection shell 4. A first rotating shaft 52 is rotatably connected to the side of the ultraviolet protection shell 4 near the heat dissipation vent 51. A rotating plate 53 is rotatably connected to the first rotating shaft 52. The rotating plate 53 is the same size as the heat dissipation vent 51.

[0036] Drive component 6 includes a limiting groove 62 formed on the protective layer 3. A limiting block 63 is slidably connected on the limiting groove 62. Two limiting blocks 63 are provided. A memory metal sheet 61 is connected to the two limiting blocks 63. The memory metal sheet 61 is in contact with the rotating plate 53.

[0037] Specifically, the design of the UV protection shell 4 can block the radiation of ultraviolet rays. Since the protective shell is sealed, when the heat generated by the heat shrink tubing is too high, the shape memory metal sheet 61 will bend after being heated, thereby simultaneously driving the limiting block 63 to slide in the limiting groove 62. The shape memory metal sheet 61 will push the rotating plate 53 to rotate to a certain angle through the first rotating shaft 52, thereby exposing the heat dissipation port 51 for heat dissipation. During the heat dissipation process, the rotating plate 53 can still block the radiation of ultraviolet rays.

[0038] Furthermore, such as Figure 5 As shown: A corrugated pipe 10 is sleeved on the outside of the buffer layer 2. The corrugated pipe 10 is in contact with the inner wall of the protective layer 3. The flexible nature of the corrugated pipe 10 can adapt to equipment vibration or thermal expansion and contraction, and avoid gaps caused by deformation.

[0039] The above solutions also require that the UV protection shell 4 and the protective layer 3 be easily installed and disassembled, such as... Figure 1 and Figure 3 As shown: A snap-fit ​​assembly 7 is provided on the UV protection shell 4. The snap-fit ​​assembly 7 includes a second rotating shaft 71 rotatably connected to the top of the UV protection shell 4. A torsion spring 72 is connected to the second rotating shaft 71. An extension plate 73 is connected to the torsion spring 72. A support plate 75 is provided on the protective layer 3. A rotating rod 76 is rotatably connected to the support plate 75. A clamping plate 77 is connected to the rotating rod 76. A limit member 74 is connected to the bottom of the extension plate 73. A spring-loaded assembly 8 is provided on the side of the protective layer 3 near the clamping plate 77. Component 8 includes a connecting plate 81 connected to the clamping plate 77. A first spring 82 is connected between the connecting plate 81 and the protective layer 3. The extension plate 73 drives the bottom limiting member 74 to press the clamping plate 77 through the torsion spring 72, thereby pressing and rotating the clamping plate 77 to both sides through the rotating rod 76. During the rotation, the first spring 82 will be pressed. When the limiting member 74 is located between the two clamping plates 77, the clamping plate 77 loses the pressing force and automatically bounces back to its original position by the elastic force of the first spring 82 after it contracts, positioning the limiting member 74.

[0040] The above solutions also include the need to cushion the heat shrink tubing when it is subjected to external impact, such as... Figure 5 As shown: A buffer assembly 9 is provided on the inner tube 1. The buffer assembly 9 includes two sliding sleeves 91 on the inner tube 1. The top of each sliding sleeve 91 is rotatably connected to the inner wall of the buffer layer 2. A fixed plate 92 is connected to the bottom of the sliding sleeve 91. A second spring 93 is connected to the fixed plate 92. A damper 94 is provided inside the second spring 93. When the heat shrink tubing is impacted by an external force, the sliding sleeve 91 will slide on the inner tube 1. During the sliding process, it will drive the fixed plate 92 at the bottom to move. During the movement, the fixed plate 92 will squeeze the second spring 93 and the internal damper 94, and absorb the impact force generated by the collision through elastic deformation.

[0041] The working principle provided by this utility model is as follows: Figures 1-5 As shown: First, the extension plate 73, driven by the torsion spring 72, compresses the clamping plate 77 with the bottom limiting member 74. This compresses and rotates the clamping plate 77 to both sides via the rotating rod 76. During rotation, the first spring 82 is compressed. When the limiting member 74 is positioned between the two clamping plates 77, the clamping plate 77 loses its compressive force and automatically springs back to its original position by the elastic force of the contracted first spring 82, thus positioning the limiting member 74. This connects the UV protection shell 4 to the protective layer 3. The UV protection shell 4 is designed to block UV radiation. Because the protective shell is sealed, excessive heat generated by the heat shrink tubing can cause the shape memory metal to... When the sheet 61 is heated, it will bend, thereby simultaneously driving the limiting block 63 to slide in the limiting groove 62. The shape memory metal sheet 61 will push the rotating plate 53 to rotate to a certain angle through the first rotating shaft 52, thereby exposing the heat dissipation port 51 for heat dissipation. During the heat dissipation process, the rotating plate 53 can still block the radiation of ultraviolet rays. When the heat shrink tubing is impacted by an external force, the sliding sleeve 91 will slide on the inner tube 1. During the sliding process, it will drive the bottom fixing plate 92 to move. During the movement, the fixing plate 92 will squeeze the second spring 93 and the internal damping 94, absorbing the impact force generated by the collision through elastic deformation.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A crack-resistant multi-layer composite heat shrink tubing structure, comprising an inner tube (1), a buffer layer (2) disposed on the outer layer of the inner tube (1), a protective layer (3) disposed on the outer side of the buffer layer (2), and an ultraviolet protective shell (4) disposed on the outer side of the protective layer (3), characterized in that, Also includes: Heat dissipation assembly (5), the heat dissipation assembly (5) includes a heat dissipation port (51) opened on the ultraviolet protection shell (4), a first rotating shaft (52) is rotatably connected to the side of the ultraviolet protection shell (4) near the heat dissipation port (51), a rotating plate (53) is rotatably connected to the first rotating shaft (52), and the rotating plate (53) is the same size as the heat dissipation port (51). The drive assembly (6) includes a limiting groove (62) formed on the protective layer (3), and a limiting block (63) is slidably connected on the limiting groove (62). There are two limiting blocks (63), and memory metal sheets (61) are connected to the two limiting blocks (63). The memory metal sheets (61) are in contact with the rotating plate (53).

2. The crack-resistant multilayer composite heat shrink tubing structure according to claim 1, characterized in that: The ultraviolet protective shell (4) is provided with a snap-fit ​​assembly (7), which includes a second rotating shaft (71) rotatably connected to the top of the ultraviolet protective shell (4), a torsion spring (72) connected to the second rotating shaft (71), an extension plate (73) connected to the torsion spring (72), a support plate (75) provided on the protective layer (3), a rotating rod (76) rotatably connected to the support plate (75), a clamping plate (77) connected to the rotating rod (76), and a limiting member (74) connected to the bottom of the extension plate (73).

3. The crack-resistant multilayer composite heat shrink tubing structure according to claim 2, characterized in that: A spring-loaded assembly (8) is provided on the side of the protective layer (3) near the clamping plate (77). The spring-loaded assembly (8) includes a connecting plate (81) connected to the clamping plate (77), and a first spring (82) is connected between the connecting plate (81) and the protective layer (3).

4. The crack-resistant multilayer composite heat shrink tubing structure according to claim 1, characterized in that: The inner tube (1) is provided with a buffer assembly (9), which includes a sliding sleeve (91) on the inner tube (1). There are two sliding sleeves (91), and the top of each of the two sliding sleeves (91) is rotatably connected to the inner wall of the buffer layer (2) with a connecting rod.

5. The crack-resistant multilayer composite heat shrink tubing structure according to claim 4, characterized in that: The bottom of the sliding sleeve (91) is connected to a fixing plate (92), and a second spring (93) is connected to the fixing plate (92). The second spring (93) is provided with a damper (94).

6. The crack-resistant multilayer composite heat shrink tubing structure according to claim 1, characterized in that: The buffer layer (2) is fitted with a corrugated pipe (10) on the outside, and the corrugated pipe (10) is in contact with the inner wall of the protective layer (3).

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