Multi-hole-site heat shrink tube convenient for connection of low-voltage multi-core cable

Abstract

The utility model belongs to the technical field of cable fittings, and discloses a multi-hole-site heat shrink tube convenient for connection of low-voltage multi-core cables, which comprises a main conduit, a segmentation structure positioned on the main conduit, and guide melting and bonding structures connected to two ends of the outer wall of the main conduit in a sliding manner, the segmentation structure comprises eight guide plates which are distributed in a circular array around the axis of the main guide pipe, insulating layers which are bonded with the inner walls of the guide plates, and shielding layers which are bonded with the insulating layers. According to the low-voltage multi-core cable, the division structure and the guide melting and bonding structure are additionally arranged, so that the guide plates can uniformly divide the internal space of the main guide pipe into eight parts, and each core wire in the low-voltage multi-core cable can smoothly pass through the area between the guide plates; in addition, heating operation can be directly carried out on the hot melt rubber sleeve, the hot melt rubber sleeve is promoted to be bonded with the main conduit, and therefore the installation efficiency of the multi-core cable can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable accessories, in particular to a multi-hole heat shrink tube that is convenient for connecting low-voltage multi-core cables. Background Art

[0002] Multi-hole heat shrink tubing is a heat shrink tubing with multiple holes, which is usually used for insulation protection of electronic components and cables. This heat shrink tubing is made of special polymer materials and has excellent insulation performance and high temperature resistance. The multi-hole design allows the heat shrink tubing to form multiple annular compression points during the shrinking process, effectively increasing the tightness of the sleeve between the heat shrink tubing and the cable or component, improving the insulation effect and waterproof performance. The installation of multi-hole heat shrink tubing is very simple. Under the action of heating, the heat shrink tubing shrinks rapidly and tightly wraps around the surface of the cable or component to form a firm protective layer. The multi-hole design can effectively prevent the intrusion of moisture and chemicals in the circuit, thereby increasing the reliability of the device;

[0003] The existing multi-hole heat shrink tubing for facilitating the connection of low-voltage multi-core cables has the following shortcomings: the existing low-voltage multi-core cables are diverse and can contain different numbers of cores. Generally, low-voltage multi-core cables have a variety of core numbers to choose from, such as 2 cores, 3 cores, 4 cores, 6 cores and 8 cores. However, most of the heat shrink tubing currently used are only provided with four holes, which results in that when the types of cables are numerous and complex, such heat shrink tubing cannot be effectively adapted for use. Moreover, during the relevant assembly operation, the heat shrink tubing usually needs to be bonded by hot melt adhesive, but the current existing heat shrink tubing is not equipped with corresponding hot melt adhesive at both ends. As a result, the staff is required to carry the hot melt adhesive themselves during actual operation, which undoubtedly brings certain inconveniences and additional burdens to the operation, and also affects the efficiency and convenience of the work to a certain extent, greatly limiting its flexibility and adaptability in multi-core cable connection applications. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a multi-hole heat shrink tube that is convenient for connecting low-voltage multi-core cables, including a main tube and a split structure located on the main tube, and a guide melting structure slidably connected to both ends of the outer wall of the main tube;

[0005] The segmentation structure includes eight guide plates distributed in a circular array with the main conduit axis as the center, an insulating layer bonded to the inner wall of the guide plates, and a shielding layer bonded to the insulating layer, the inner wall of the shielding layer is provided with a protective layer, and the guide plates divide the inner wall space of the main conduit into eight equal parts;

[0006] The guided melting and bonding structure comprises four sliding blocks, a hot melt adhesive sleeve fixedly connected to one end of the outer wall of the sliding block, and a plug sleeve fixedly connected to the hot melt adhesive sleeve via a connecting column. The four sliding blocks are evenly installed on the inner wall of the hot melt adhesive sleeve.

[0007] Preferably, the hot melt adhesive sleeves, connecting columns and plug sleeves are arranged in two groups and are symmetrically distributed about the center of the main conduit.

[0008] Preferably, both ends of the main conduit are provided with sliding grooves slidably matched with the sliding block.

[0009] Preferably, the other end of the outer wall of the sliding block is fixedly connected to the inner wall of the plug sleeve.

[0010] Preferably, the plug sleeve is plugged into the inner wall of the slide groove through a sliding block and extends to both ends of the main conduit.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model adds a dividing structure and a guiding melting and bonding structure so that the eight guide plates can evenly divide the internal space of the main conduit into eight independent parts. In this way, the core wires in the low-voltage multi-core cable can smoothly pass through the areas between the guide plates. At the same time, it is more convenient to directly push the plug-in sleeve to the two end positions of the main conduit. In addition, the hot-melt adhesive sleeve can be directly heated to promote effective bonding between the hot-melt adhesive sleeve and the main conduit, thereby effectively improving the installation efficiency and quality of the multi-core cable, making the wiring work more convenient, quick and reliable, and can also adapt to different types of multi-core cables to meet the needs of different wiring environments and requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall split structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the guide plate structure of the utility model;

[0016] Figure 4 It is the left view of the utility model;

[0017] Figure 5 This is a schematic diagram of the main pipe structure of the utility model;

[0018] Figure 6 This is a top view of the utility model.

[0019] In the figure: 1. main conduit; 11. slide groove; 2. dividing structure; 21. guide plate; 22. insulating layer; 23. shielding layer; 24. protective layer; 3. guide melting and bonding structure; 31. sliding block; 32. hot melt adhesive sleeve; 33. connecting column; 34. plug-in sleeve. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figures 1 to 6 As shown, the utility model provides a multi-hole heat shrink tube that is convenient for connecting low-voltage multi-core cables, including a main conduit 1 and a split structure 2 located on the main conduit 1, and a guide melting structure 3 slidably connected to both ends of the outer wall of the main conduit 1;

[0022] The segmentation structure 2 includes eight guide plates 21 distributed in a circular array with the main conduit 1 as the axis, an insulating layer 22 bonded to the inner wall of the guide plate 21, and a shielding layer 23 bonded to the insulating layer 22. A protective layer 24 is installed on the inner wall of the shielding layer 23. The guide plate 21 divides the inner wall space of the main conduit 1 into eight equal parts.

[0023] The guided melting structure 3 includes four sliding blocks 31 and a hot melt adhesive sleeve 32 fixedly connected to one end of the outer wall of the sliding block 31 , and a plug sleeve 34 fixedly connected to the hot melt adhesive sleeve 32 through a connecting column 33 . The four sliding blocks 31 are evenly installed on the inner wall of the hot melt adhesive sleeve 32 .

[0024] The above scheme is adopted: by adding a dividing structure 2 and a guiding melting and bonding structure 3, the eight guide plates 21 can evenly divide the internal space of the main conduit 1 into eight independent parts. In this way, each core wire in the low-voltage multi-core cable can smoothly pass through the area between each guide plate 21. At the same time, it is also more convenient to directly push the plug sleeve 34 to the two end positions of the main conduit 1. In addition, the hot melt adhesive sleeve 32 can be directly heated to promote the hot melt adhesive sleeve 32 and the main conduit 1 to achieve effective bonding, thereby effectively improving the installation efficiency and quality of the multi-core cable, making the wiring work more convenient, fast and reliable, and can also adapt to different types of multi-core cables to meet the needs of different wiring environments and requirements. The shielding layer 23 can shield external electromagnetic interference, so that the core wires of the multi-core cable do not affect each other, and the insulating layer 22 and the protective layer 24 can prevent its leakage from causing harm to people.

[0025] like Figures 1 to 6 As shown, the hot melt adhesive sleeve 32 , the connecting column 33 and the plug sleeve 34 are all arranged in two groups and are symmetrically distributed around the center of the main conduit 1 .

[0026] The above scheme is adopted: the connecting column 33 is located in the middle of the hot melt adhesive sleeve 32 and the plug-in sleeve 34, and the two ends of the outer wall of the sliding block 31 are respectively connected to the inner walls of the hot melt adhesive sleeve 32 and the plug-in sleeve 34, and the connecting column 33 is arranged in multiple groups to fix the position of the plug-in sleeve 34 and the hot melt adhesive sleeve 32.

[0027] like Figures 1 to 6 As shown, two ends of the main conduit 1 are provided with sliding grooves 11 slidably matched with the sliding block 31 .

[0028] The above scheme is adopted: the role of the slide groove 11 is to limit the position of the sliding block 31, and the plug-in sleeve 34 can be plugged into the inner wall of the slide groove 11 through the sliding block 31, so that the two plug-in sleeves 34 can be installed on both sides of the main conduit 1, and the role of the hot melt adhesive sleeve 32 is to fix the plug-in sleeve 34 on the outer wall of the main conduit 1 by heating.

[0029] like Figures 1 to 6 As shown, the other end of the outer wall of the sliding block 31 is fixedly connected to the inner wall of the plug sleeve 34 , and the plug sleeve 34 is plugged into the inner wall of the slide groove 11 through the sliding block 31 and extends to the two ends of the main conduit 1 .

[0030] By adopting the above solution, the sliding block 31 as a connecting piece can fix the positions of the hot melt adhesive sleeve 32 and the plug sleeve 34 , and when the hot melt adhesive sleeve 32 is heated and melted, it is bonded to the outer wall of the main conduit 1 .

[0031] The working principle and use process of this utility model:

[0032] First, the low-voltage multi-core cables are passed through the areas between the guide plates 21 one by one, so that each core wire is wrapped by the insulating layer 22, the shielding layer 23 and the protective layer 24, ensuring that it is effectively protected from wear and damage during the passage between the guide plates 21. Next, the staff can directly push the plug-in sleeve 34 to the two end positions of the main conduit 1, and can be accurately inserted into the main conduit 1 by directly pushing it, so as to prepare for the subsequent bonding operation. Subsequently, the staff heats the hot-melt adhesive sleeve 32. Through heating, the hot-melt adhesive sleeve 32 will soften and melt, forming an effective bond with the surface of the main conduit 1. This bonding method can ensure the sealing and stability between the plug-in sleeve 34 and the main conduit 1, effectively prevent moisture, dust and other foreign substances from entering the conduit, and improve the service life and reliability of the cable.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-hole heat shrink tube for connecting low-voltage multi-core cables, characterized by: It comprises a main conduit (1), a splitting structure (2) located on the main conduit (1), and a guide melting and bonding structure (3) slidably connected to both ends of the outer wall of the main conduit (1); The segmentation structure (2) comprises eight guide plates (21) arranged in a circular array with the axis of the main conduit (1), an insulating layer (22) bonded to the inner wall of the guide plate (21), and a shielding layer (23) bonded to the insulating layer (22), the inner wall of the shielding layer (23) being provided with a protective layer (24), and the guide plate (21) equally divides the inner wall space of the main conduit (1) into eight places; The guide melt-adhesive structure (3) comprises four sliding blocks (31), a hot-melt adhesive sleeve (32) fixedly connected to one end of the outer wall of the sliding block (31), and a plug-in sleeve (34) fixedly connected to the hot-melt adhesive sleeve (32) via a connecting column (33), and the four sliding blocks (31) are evenly mounted on the inner wall of the hot-melt adhesive sleeve (32).

2. A multi-hole heat shrink tube for facilitating connection of low-voltage multi-core cables according to claim 1, characterized in that: The hot melt adhesive sleeve (32), the connecting column (33) and the plug sleeve (34) are all arranged in two groups and are symmetrically distributed at the center of the main conduit (1).

3. The multi-hole heat shrink tube for facilitating the connection of low-voltage multi-core cables according to claim 1, characterized in that: Both ends of the main conduit (1) are provided with sliding grooves (11) that are slidably matched with the sliding block (31).

4. The multi-hole heat shrink tube for facilitating the connection of low-voltage multi-core cables according to claim 1, characterized in that: The other end of the outer wall of the sliding block (31) is fixedly connected to the inner wall of the plug sleeve (34).

5. The multi-hole heat shrink tube for facilitating the connection of low-voltage multi-core cables according to claim 3, characterized in that: The plug sleeve (34) is plugged into the inner wall of the slide groove (11) through the sliding block (31) and extends to both ends of the main conduit (1).

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