Low-smoke halogen-free cable
By installing a sliding connection ring and protective components on the outer ring of the low-smoke zero-halogen cable, the problem of cable cracking caused by excessive bending when turning at a corner is solved, achieving stable installation of the cable and extending its service life.
Patent Information
- Application Number
- CN202422625815.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing low-smoke halogen-free cables are prone to cracking at corners due to excessive bending during wiring and installation, which affects their service life.
A sliding connection ring and a protective assembly are set on the outer ring of the cable body. A protective plate is formed by the limit ring and the connection unit to prevent the cable from continuing to bend at the turning point. Bolts and clamping components are used to ensure stable installation.
It effectively reduces the curvature of the cable at the bend, avoids cracking, ensures that the cable does not come into direct contact when turning at the corner, prolongs the service life, and facilitates disassembly and assembly and prevents damage from hard contact.
Smart Images
Figure CN223413888U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to a low-smoke halogen-free cable. Background Art
[0002] Low smoke halogen-free cable is an environmentally friendly cable that does not emit toxic smoke when burned and does not contain halogen substances. Low smoke halogen-free cable is a material classification for wire sheaths in the wire and cable industry. The sheath material of this cable is composed of thermoplastic or thermosetting materials that emit low smoke when heated and do not contain halogens.
[0003] When existing low-smoke halogen-free cables are being laid and installed, they will inevitably encounter corners. When the low-smoke halogen-free cables turn at the corners, due to the large turning radius, the turning places are prone to cracking over time, thus affecting the service life of the low-smoke halogen-free cables. Therefore, it is necessary to propose a low-smoke halogen-free cable to solve the above problem. Utility Model Content
[0004] The purpose of the utility model is to provide a low-smoke halogen-free cable to solve the problem that the existing low-smoke halogen-free cables will inevitably encounter corners during wiring and installation. When the low-smoke halogen-free cables turn at the corners, the curvature at the corners is too large, and the corners are prone to cracking over time, thereby affecting the service life of the low-smoke halogen-free cables.
[0005] To achieve the above object, the present invention provides the following technical solution: a low-smoke zero-halogen cable, comprising a cable body, wherein a plurality of groups of connecting rings are slidably provided on the outer ring of the cable body, each group of connecting rings comprises two limiting rings, a connecting plate is fixedly provided on the outer ring of the limiting ring, and a protective assembly is fixedly connected between the two connecting plates;
[0006] The two locking plates are connected via bolts to the two connecting plates, and a plurality of connecting units rotatably connected by hinges are arranged between the two fixing plates. Each connecting unit includes a rotating plate and a second convex plate, and the second convex plates are provided with four. The four second convex plates are respectively fixed on the side surfaces of the four corners of the rotating plate, and the second connecting sleeves are fixed at both ends of the rotating plate, and two second connecting sleeves are provided at the same end of the rotating plate. A rotating shaft is movably provided between the inner walls of the two second connecting sleeves, and a limiting plate is fixedly provided at the upper and lower ends of the rotating shaft, and the first connecting sleeve is fixedly provided at one end of the fixed plate close to the connecting unit, and the first connecting sleeve is movably provided at the outer ring of the rotating shaft, and the first connecting sleeve is located between the two second connecting sleeves, and the first convex plates are fixed on both sides of the fixed plate close to one end of the connecting unit;
[0007] A pressing component is provided on the limiting ring.
[0008] Preferably, the ends of the first convex plate and the second convex plate are both rounded.
[0009] Preferably, the clamping assembly includes a slide groove, which is fixed on the inner wall of the limiting ring, a pressure plate is slidably arranged inside the slide groove, a threaded rod is fixed on the top of the pressure plate, the threaded rod is threadedly connected to a threaded hole fixed on the limiting ring, and one end of the threaded rod that movably extends out of the threaded hole is fixedly connected to a handle.
[0010] Preferably, a first sponge plate is fixedly provided on the inner wall of the limiting ring, and a second sponge plate is fixedly provided on a side of the pressing plate away from the threaded rod.
[0011] Preferably, a plurality of anti-slip strips evenly distributed in a ring shape are fixedly provided on the outer ring of the handle.
[0012] Preferably, the cable body is provided with a low-smoke halogen-free sheath and an isolation belt in sequence from the outside to the inside, four conductive units are provided inside the isolation belt, each conductive unit is provided with an insulating layer, a fire-resistant layer and an inner conductor in sequence from the outside to the inside, and the isolation belt is filled with asphalt that wraps the conductive unit.
[0013] The technical effects and advantages of this utility model are:
[0014] By installing the protective component, when the cable body starts to turn, the two adjacent rotating plates rotate relative to each other, so that the two second protruding plates close to each other abut against each other, thereby preventing the two rotating plates from continuing to rotate relative to each other, thereby preventing the cable body from continuing to bend at the turn, reducing the curvature of the cable body at the turn, and solving the problem that the existing cable body will inevitably encounter a corner during wiring and installation. When the cable body turns at the corner, the curvature of the corner is too large, and the turn is prone to cracking over time, thereby shortening the service life of the cable body.
[0015] When the cable body is installed and encounters a corner, the connecting ring is moved from the cable body to the turning position. By installing the protective assembly, several connecting units form a protective plate, which can prevent the turning part of the cable body from directly contacting the corner and avoid the corner indentation at the turning part of the cable body;
[0016] The installation of bolts makes it easy to disassemble and assemble the protective components without affecting the normal bending and winding of the cable body;
[0017] Since the second convex plates are provided on both sides of the rotating plate, the front and back sides of the protective assembly can be installed on the connecting plate, without worrying about the problem of installation being reversed and needing to be disassembled and reinstalled;
[0018] Turning the handle drives the threaded rod to move downward in the threaded hole, thereby driving the pressure plate to move downward to press the cable body tightly, preventing the limit ring and protective component from sliding on the cable body when the cable body is pulled;
[0019] By setting the first sponge board, the limit ring is prevented from sliding freely on the cable body. It can only slide when external force is provided, so that it is convenient to pre-place the limit ring in the corner position. By installing the second sponge board, the hard contact damage of the pressure plate to the outside of the cable body is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a low-smoke zero-halogen cable of the utility model.
[0021] Figure 2 This is a schematic diagram of the limit ring structure of the utility model.
[0022] Figure 3 This is a schematic diagram of the disassembled structure of the fixing plate and the connecting unit of the utility model.
[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the cable body of the present utility model.
[0024] In the figure: 1. Cable body; 2. Limiting ring; 3. Slide groove; 4. Pressure plate; 5. Threaded hole; 6. Threaded rod; 7. Handle; 8. First sponge plate; 9. Second sponge plate; 10. Connecting plate; 11. Bolt; 12. Fixing plate; 13. First convex plate; 14. First connecting sleeve; 15. Rotating shaft; 16. Rotating plate; 17. Second convex plate; 18. Second connecting sleeve; 19. Low-smoke halogen-free sheath; 20. Isolation tape; 21. Asphalt; 22. Insulation layer; 23. Fire-resistant layer; 24. Inner conductor. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] The utility model provides Figure 1-Figure 4The low-smoke halogen-free cable shown includes a cable body 1. Considering that multiple corners will inevitably be encountered when installing the cable body 1, when the cable body 1 turns at the corner, the turning radius is too large and the turning part is prone to cracking over time, thereby affecting the service life of the cable body 1. Therefore, the utility model is provided with several groups of connecting rings slidingly at the outer ring of the cable body 1, and each group of connecting rings includes two limiting rings 2. A connecting plate 10 is fixedly provided at the outer ring of the limiting ring 2, and a protective component is fixedly connected between the two connecting plates 10. When encountering a corner, the connecting ring is moved from the cable body 1 to the turning position. By installing the protective component, the turning part of the cable body 1 can be prevented from directly contacting the corner, and the corner indentation can be avoided at the turning part of the cable body 1. In addition, by installing the protective component, the curvature of the turning part of the cable body 1 is controlled, and the problem of the turning part of the cable body 1 being prone to cracking over time due to excessive curvature can be avoided.
[0027] Furthermore, the protective assembly includes two fixed plates 12, both of which are fixedly connected to the two connecting plates 10 by bolts 11, and several connecting units rotatably connected by hinges are rotatably arranged between the two fixed plates 12, each connecting unit includes a rotating plate 16 and a second convex plate 17, four second convex plates 17 are provided, and the four second convex plates 17 are respectively fixed on the side surfaces of the four corners of the rotating plate 16, and a second connecting sleeve 18 is fixedly provided at both ends of the rotating plate 16, and there are two second connecting sleeves 18 located at the same end of the rotating plate 16, a rotating shaft 15 is movably provided between the inner walls of the two second connecting sleeves 18, and a limiting plate is fixedly provided at the upper and lower ends of the rotating shaft 15, and a first connecting sleeve 14 is fixedly provided at one end of the fixed plate 12 close to the connecting unit, the first connecting sleeve 14 is movably sleeved on the outer ring of the rotating shaft 15, and the first connecting sleeve 14 is located between the two second connecting sleeves 18, and a first convex plate 13 is fixedly provided on both sides of one end of the fixed plate 12 close to the connecting unit.
[0028] Specifically, a protective plate is formed by a number of connecting units to prevent the turning point of the cable body 1 from directly contacting the wall corner. When the turning point of the cable body 1 starts to turn, the two adjacent rotating plates 16 rotate relative to each other, so that the two second protruding plates 17 close to each other are pressed against each other, thereby preventing the two rotating plates 16 from continuing to rotate relative to each other, thereby preventing the turning point of the cable body 1 from continuing to bend, reducing the curvature of the cable body 1 at the turning point, and solving the problem that the existing cable body 1 will inevitably encounter a wall corner during wiring and installation. When the cable body 1 turns at the wall corner, the curvature of the turning point is too large, and the turning point is prone to cracking over time, thereby affecting the service life of the cable body 1.
[0029] In addition, the installation of the bolts 11 facilitates the assembly and disassembly of the protective assembly, thereby not affecting the normal bending and winding of the cable body 1 .
[0030] Furthermore, the ends of the first convex plate 13 and the second convex plate 17 are both rounded, so as to avoid the problem of indentation on the outer ring of the cable body 1 when the first convex plate 13 and the second convex plate 17 come into contact with the cable body 1 .
[0031] Since the second protruding plates 17 are provided on both sides of the rotating plate 16, the front and back sides of the protective assembly can be installed on the connecting plate 10 without worrying about the problem of installation being reversed and needing to be disassembled and reinstalled.
[0032] In order to avoid displacement between the protective component and the wall corner when the cable body 1 is pulled, a clamping component is provided on the limit ring 2, and the clamping component includes a slide groove 3, which is fixedly arranged on the inner wall of the limit ring 2, and a pressure plate 4 is slidingly arranged inside the slide groove 3, and a threaded rod 6 is fixedly arranged on the top of the pressure plate 4, and the threaded rod 6 is threadedly connected to the threaded hole 5 fixedly set on the limit ring 2. One end of the threaded rod 6 that can be movably extended out of the threaded hole 5 is fixedly connected to a handle 7. Turning the handle 7 drives the threaded rod 6 to move downward in the threaded hole 5, thereby driving the pressure plate 4 to move downward to press the cable body 1, thereby avoiding displacement and sliding of the limit ring 2 and the protective component on the cable body 1.
[0033] Furthermore, a first sponge plate 8 is fixedly provided on the inner wall of the limiting ring 2, and a second sponge plate 9 is fixedly provided on the side of the pressure plate 4 away from the threaded rod 6. Through the setting of the first sponge plate 8, the limiting ring 2 is prevented from sliding freely on the cable body 1, and can only slide when external force is provided, thereby facilitating the pre-placement of the limiting ring 2 in the corner position of the wall. Through the installation of the second sponge plate 9, the hard contact damage of the pressure plate 4 to the outside of the cable body 1 is reduced.
[0034] Furthermore, a plurality of anti-slip strips evenly distributed in a ring shape are fixedly provided on the outer ring of the handle 7. The installation of the anti-slip strips facilitates the rotation of the handle 7 and avoids slipping.
[0035] Furthermore, the cable body 1 is provided with a low-smoke halogen-free sheath 19 and an isolation belt 20 from the outside to the inside, and four conductive units are provided inside the isolation belt 20. Each conductive unit is provided with an insulating layer 22, a fire-resistant layer 23 and an inner conductor 24 from the outside to the inside. The isolation belt 20 is filled with asphalt 21 that wraps the conductive unit. This arrangement allows the cable body 1 to prevent the spread of fire and will not produce toxic gases that are harmful to the human body. It solves the problem that traditional ordinary cables have poor heat resistance and are easily burned in high temperatures caused by accidents such as short circuits, and a large amount of toxic and harmful smoke and gases are generated during the combustion process.
Claims
1. A low smoke zero halogen cable, comprising a cable body (1), characterized in that: Several groups of connecting rings are slidably provided at the outer ring of the cable body (1), each group of connecting rings includes two limiting rings (2), a connecting plate (10) is fixedly provided at the outer ring of the limiting ring (2), and a protective component is fixedly connected between the two connecting plates (10); The protection assembly includes two fixed plates (12), and the two fixed plates (12) are fixedly connected to the two connecting plates (10) by bolts (11). A plurality of connecting units connected by hinges are rotatably provided between the two fixed plates (12), and each connecting unit includes a rotating plate (16) and a second convex plate (17). Four second convex plates (17) are provided, and the four second convex plates (17) are respectively fixedly provided on the side surfaces of the four corners of the rotating plate (16). The second connecting sleeves (18) are fixedly provided at both ends of the rotating plate (16), and are located on the rotating plate ( 16) Two second connecting sleeves (18) are provided at the same end, a rotating shaft (15) is movably provided between the inner walls of the two second connecting sleeves (18), and limit plates are fixedly provided at both upper and lower ends of the rotating shaft (15), a first connecting sleeve (14) is fixedly provided at one end of the fixed plate (12) close to the connecting unit, the first connecting sleeve (14) is movably provided at the outer ring of the rotating shaft (15), and the first connecting sleeve (14) is located between the two second connecting sleeves (18), and first convex plates (13) are fixedly provided at both sides of one end of the fixed plate (12) close to the connecting unit; A pressing assembly is provided on the limiting ring (2).
2. The low-smoke zero-halogen cable according to claim 1, characterized in that: The ends of the first convex plate (13) and the second convex plate (17) are both rounded.
3. The low-smoke zero-halogen cable according to claim 1, characterized in that: The clamping assembly includes a slide groove (3), the slide groove (3) is fixedly arranged on the inner wall of the limiting ring (2), a pressure plate (4) is slidably arranged inside the slide groove (3), a threaded rod (6) is fixedly arranged on the top of the pressure plate (4), the threaded rod (6) is threadedly connected to a threaded hole (5) fixedly arranged on the limiting ring (2), and one end of the threaded rod (6) that movably extends out of the threaded hole (5) is fixedly connected to a handle (7).
4. The low-smoke zero-halogen cable according to claim 3, characterized in that: A first sponge plate (8) is fixedly provided on the inner wall of the limiting ring (2), and a second sponge plate (9) is fixedly provided on a side of the pressing plate (4) away from the threaded rod (6).
5. The low-smoke zero-halogen cable according to claim 3, characterized in that: A plurality of anti-slip strips evenly distributed in an annular shape are fixedly provided on the outer ring of the handle (7).
6. The low-smoke zero-halogen cable according to claim 1, characterized in that: The cable body (1) is provided with a low-smoke zero-halogen sheath (19) and an isolation belt (20) in sequence from the outside to the inside, four conductive units are provided inside the isolation belt (20), and each conductive unit is provided with an insulating layer (22), a fire-resistant layer (23) and an inner conductor (24) in sequence from the outside to the inside, and the isolation belt (20) is filled with asphalt (21) that wraps the conductive unit.