Flame-retardant low-smoke halogen-free cable

Abstract

The utility model relates to the technical field of low-smoke halogen-free cables, in particular to a flame-retardant low-smoke halogen-free cable, which comprises a protective casing, a cabling wrapping tape is fixedly connected to the inner surface of the protective casing, a shielding protective casing is fixedly connected to the inner surface of the cabling wrapping tape, an insulating protective casing is fixedly connected to the inner surface of the shielding protective casing, and the insulating protective casing is fixedly connected to the outer surface of the protective casing. The inner surface of the insulating protective shell is fixedly connected with a conductor, the outer surface of the protective shell is fixedly connected with a base plate, one end of the base plate is fixedly connected with a first telescopic column, the other end of the base plate is fixedly connected with a second telescopic column, and one end of the first telescopic column is fixedly connected with a fixing ring. Through the arrangement of the base plate, the first telescopic column, the second telescopic column and the fixing ring, in the using process, a cable penetrates through the inner surface of the base plate, the first telescopic column and the second telescopic column are extruded to fix the cable, then the maximum extrusion diameter is limited through the fixing ring, and therefore the effect that protection can be conducted while the cable is placed is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-smoke halogen-free cables, in particular to a flame-retardant low-smoke halogen-free cable. Background Art

[0002] Low smoke halogen-free wire refers to the halogen material of the wire insulation layer. When burned, it does not release halogen-containing gas and has a low smoke concentration. The reference standard is JB / T 10491-2004. The models are WDZ-BYJ, WDZ-RYJ, etc. A large number of domestic manufacturers have the production capacity. Flame retardant type refers to the property of a substance or a material after treatment that significantly delays the spread of flame. This plays a guiding role in the selection of the scope of material use, especially for building materials, ships, vehicles, and household appliances. The materials require high flame retardancy. There are many methods to evaluate flame retardancy, such as oxygen index determination method, horizontal or vertical combustion test method, etc.

[0003] A flame-retardant low-smoke halogen-free cable is disclosed in the Chinese utility model patent application disclosure CN214312739U. It includes the use of a conductor, an insulating layer, a flame-retardant layer, and a filling cavity, so that when the cable encounters flames, the flame-retardant layer of the cross-linked polyethylene material and the mica tape material and the glass fiber in the filling cavity provide the cable with flame-retardant and high-temperature resistant effects as a whole, solving the problem of poor flame-retardant effect of the existing cables; the use of a first partition, a second partition, and a support column to form a hollow structure for the cable, improve the impact resistance of the cable, and improve the protection of the inside of the cable. The support column improves the tensile resistance of the cable and plays a role in strengthening the strength of the cable, solving the problem of poor tensile and extrusion deformation resistance of the existing cables.

[0004] However, the device lacks the function of limiting and fixing the cables in the specified position. When in use, the cables cannot be placed and fixed in the specified position and cannot be protected, resulting in the cable not being protected while being placed. Moreover, the device also lacks the function of assembling the cables with each other. When in use, the installation between the cables requires separate fixing devices, resulting in a waste of resources and a loose installation. Utility Model Content

[0005] The utility model aims to provide a flame retardant low-smoke halogen-free cable to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A flame-retardant low-smoke halogen-free cable, comprising a protective shell, a cable wrapping tape fixedly connected to the inner surface of the protective shell, a shielding protective shell fixedly connected to the inner surface of the cable wrapping tape, an insulating protective shell fixedly connected to the inner surface of the shielding protective shell, and a conductor fixedly connected to the inner surface of the insulating protective shell;

[0008] A pad is fixedly connected to the outer surface of the protective shell, one end of the pad is fixedly connected to the first telescopic column, the other end of the pad is fixedly connected to the second telescopic column, one end of the first telescopic column is fixedly connected to a fixing ring, one end of the fixing ring is fixedly connected to a fixing plate, one end of the fixing plate is fixedly connected to a fixing bracket, one end of the fixing bracket is fixedly connected to a rotating shaft, a clamping ring is rotatably connected to the outer surface of the rotating shaft, and one end of the clamping ring is fixedly connected to a mounting plate.

[0009] Preferably, a fixing groove is provided in the middle of the mounting plate, and a screw is fixedly connected to the inner surface of the fixing groove.

[0010] Preferably, four first telescopic columns and four second telescopic columns are fixedly connected to the inner surface of the fixing ring, and each of the first telescopic columns and the second telescopic columns forms a group and one end of the group is fixedly connected to a pad.

[0011] Preferably, both ends of the fixing ring are fixedly connected with fixing plates, one end of the fixing plate is fixedly connected with a fixing bracket, and one end of the fixing bracket is fixedly connected with a rotating shaft.

[0012] Preferably, nine insulating protective shells are fixedly connected to the inner surface of the shielding protective shell, and nine conductors are fixedly connected to the inner surface of the insulating protective shell.

[0013] Preferably, both ends of each cable are fixedly connected with mounting plates, and the two mounting plates are fixedly connected to the inner surface of the fixing groove by screws.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. This flame-retardant low-smoke halogen-free cable is provided with a pad, a first telescopic column, a second telescopic column and a fixing ring. When in use, the cable passes through the inner surface of the pad, squeezes the first telescopic column and the second telescopic column to fix the cable, and then limits the maximum diameter of the extrusion by the fixing ring, thereby achieving the effect of being able to protect while being placed.

[0016] 2. This flame-retardant low-smoke halogen-free cable is provided with a fixing plate, a fixing bracket, a rotating shaft, a clamping ring, a mounting plate and a fixing groove. When in use, the fixing plate places the device at a specified position, and then the clamping ring is driven to rotate by the rotating shaft on the fixing bracket to adjust the mounting plate to a specified angle, and then the device is fixed by screwing through the fixing groove, thereby achieving the effect of connecting multiple devices to each other and reducing resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram showing the structure of the utility model;

[0018] Figure 2 It is a plan view of the utility model;

[0019] Figure 3 It is a schematic diagram of the limit assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of cable connection of the utility model.

[0021] In the figure: 1. protective shell; 2. cable wrapping tape; 3. shielding protective shell; 4. insulating protective shell; 5. conductor; 6. pad; 7. first telescopic column; 8. second telescopic column; 9. fixing ring; 10. fixing plate; 11. fixing bracket; 12. rotating shaft; 13. clamping ring; 14. mounting plate; 15. fixing groove; 16. screw. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0024] A flame-retardant low-smoke halogen-free cable comprises a protective shell 1, a cable wrapping tape 2 is fixedly connected to the inner surface of the protective shell 1, a shielding protective shell 3 is fixedly connected to the inner surface of the cable wrapping tape 2, an insulating protective shell 4 is fixedly connected to the inner surface of the shielding protective shell 3, and a conductor 5 is fixedly connected to the inner surface of the insulating protective shell 4. By setting the protective shell 1, the cable wrapping tape 2, the shielding protective shell 3, the insulating protective shell 4 and the conductor 5, when in use, the protective shell 1 protects the cable wrapping tape 2, the cable wrapping tape 2 protects the shielding protective shell 3, the shielding protective shell 3 protects the insulating protective shell 4, and the insulating protective shell 4 protects the conductor 5, thereby achieving the effect of effectively protecting the conductor 5 body;

[0025] The outer surface of the protective shell 1 is fixedly connected with a pad 6, one end of the pad 6 is fixedly connected with a first telescopic column 7, the other end of the pad 6 is fixedly connected with a second telescopic column 8, one end of the first telescopic column 7 is fixedly connected with a fixing ring 9, one end of the fixing ring 9 is fixedly connected with a fixing plate 10, one end of the fixing plate 10 is fixedly connected with a fixing bracket 11, one end of the fixing bracket 11 is fixedly connected with a rotating shaft 12, the outer surface of the rotating shaft 12 is rotatably connected with a clamping ring 13, one end of the clamping ring 13 is fixedly connected with a mounting plate 14, through the arrangement of the pad 6, the first telescopic column 7, the second telescopic column 8 and the fixing ring 9, when in use, the cable passes through the inner surface of the pad 6, squeezes the first telescopic column 7 and the second telescopic column 8 to fix the cable, and then the maximum diameter of the extrusion is limited by the fixing ring 9, thereby achieving the effect of being able to be placed and protected at the same time;

[0026] In this embodiment, preferably, a fixing groove 15 is opened in the middle of the mounting plate 14, and a screw 16 is fixedly connected to the inner surface of the fixing groove 15. Through the arrangement of the fixing plate 10, the fixing bracket 11, the rotating shaft 12, the snap ring 13, the mounting plate 14 and the fixing groove 15, the fixing plate 10 on the fixing ring 9 places the device at a specified position, and then the snap ring 13 is driven to rotate by the rotating shaft 12 on the fixing bracket 11, the mounting plate is adjusted to a specified angle, and then the device is fixed by passing the screw 16 through the fixing groove 15, thereby achieving the effect of connecting multiple devices to each other and reducing resource waste;

[0027] In this embodiment, preferably, the inner surface of the fixing ring 9 is fixedly connected with four first telescopic columns 7 and four second telescopic columns 8, and each of the first telescopic columns 7 and the second telescopic columns 8 is fixedly connected with a pad 6 at one end as a group. Through the arrangement of the first telescopic columns 7, the second telescopic columns 8 and the fixing ring 9, when in use, the cable passes through the inner surface of the pad 6, squeezes the first telescopic columns 7 and the second telescopic columns 8 to fix the cable, and then limits the maximum diameter of the squeeze through the fixing ring 9, thereby achieving the effect of being able to be placed and protected at the same time;

[0028] In this embodiment, preferably, both ends of the fixing ring 9 are fixedly connected with a fixing plate 10, one end of the fixing plate 10 is fixedly connected with a fixing bracket 11, and one end of the fixing bracket 11 is fixedly connected with a rotating shaft 12. Through the arrangement of the fixing bracket 11, the rotating shaft 12, the snap ring 13, the mounting plate 14 and the fixing groove 15, the fixing plate 10 on the fixing ring 9 places the device at a specified position, and then the snap ring 13 is driven to rotate by the rotating shaft 12 on the fixing bracket 11, the mounting plate is adjusted to a specified angle, and then the device is fixed by passing the screw 16 through the fixing groove 15, thereby achieving the effect of connecting multiple devices to each other and reducing resource waste;

[0029] In this embodiment, preferably, nine insulating protective shells 4 are fixedly connected to the inner surface of the shielding protective shell 3, and nine conductors 5 are fixedly connected to the inner surface of the insulating protective shell 4. By means of the multiple insulating protective shells 4 inside the shielding protective shell 3 and the multiple conductors 5 inside the insulating protective shell 4, the protection of the conductors 5 themselves can be enhanced;

[0030] In this embodiment, preferably, each cable is fixedly connected to a mounting plate 14 at both ends, and the two mounting plates 14 are fixedly connected to the inner surface of the fixing groove 15 by screws 16. Through the arrangement of the mounting plates 14, the screws 16 and the fixing grooves 15, when in use, the rotating shaft 12 on the fixing bracket 11 drives the clamping ring 13 to rotate, adjusts the mounting plate to a specified angle, and then fixes the device by passing the screws 16 through the fixing grooves 15, thereby achieving the effect of connecting multiple devices to each other and reducing resource waste.

[0031] When a flame-retardant low-smoke halogen-free cable of the present embodiment is in use, the staff first passes the cable through the inner surface of the pad 6, squeezes the first telescopic column 7 and the second telescopic column 8 to fix the cable, and then limits the maximum diameter of the extrusion through the fixing ring 9, so that the device can be protected while being placed, and then the fixing plate 10 on the fixing ring 9 is used to place the device at a specified position, and then the rotating shaft 12 on the fixing bracket 11 drives the clamping ring 13 to rotate, and the mounting plate is adjusted to a specified angle, and then the device is fixed by passing the screw 16 through the fixing groove 15, so that multiple devices can be connected to each other to reduce resource waste, and the cable itself is protected by the protective shell 1 into a cable wrapping tape 2, the cable wrapping tape 2 protects the shielding protective shell 3, the shielding protective shell 3 protects the insulating protective shell 4, and the insulating protective shell 4 protects the conductor 5, which can effectively protect the conductor 5 body.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A flame retardant low smoke halogen-free cable, characterized by: include A protective shell (1), wherein a cable wrapping tape (2) is fixedly connected to the inner surface of the protective shell (1), a shielding protective shell (3) is fixedly connected to the inner surface of the cable wrapping tape (2), an insulating protective shell (4) is fixedly connected to the inner surface of the shielding protective shell (3), and a conductor (5) is fixedly connected to the inner surface of the insulating protective shell (4); The outer surface of the protective shell (1) is fixedly connected to a pad (6), one end of the pad (6) is fixedly connected to a first telescopic column (7), the other end of the pad (6) is fixedly connected to a second telescopic column (8), one end of the first telescopic column (7) is fixedly connected to a fixing ring (9), one end of the fixing ring (9) is fixedly connected to a fixing plate (10), one end of the fixing plate (10) is fixedly connected to a fixing bracket (11), one end of the fixing bracket (11) is fixedly connected to a rotating shaft (12), the outer surface of the rotating shaft (12) is rotatably connected to a snap ring (13), one end of the snap ring (13) is fixedly connected to a mounting plate (14).

2. The flame-retardant low-smoke halogen-free cable according to claim 1, characterized in that: A fixing groove (15) is provided in the middle of the mounting plate (14), and a screw (16) is fixedly connected to the inner surface of the fixing groove (15).

3. The flame-retardant low-smoke halogen-free cable according to claim 1, characterized in that: The inner surface of the fixing ring (9) is fixedly connected with four first telescopic columns (7) and four second telescopic columns (8), and each of the first telescopic columns (7) and the second telescopic columns (8) forms a group and has one end fixedly connected with a pad (6).

4. The flame-retardant low-smoke halogen-free cable according to claim 1, characterized in that: Both ends of the fixing ring (9) are fixedly connected to fixing plates (10), one end of the fixing plate (10) is fixedly connected to a fixing bracket (11), and one end of the fixing bracket (11) is fixedly connected to a rotating shaft (12).

5. The flame-retardant low-smoke halogen-free cable according to claim 1, characterized in that: Nine insulating protective shells (4) are fixedly connected to the inner surface of the shielding protective shell (3), and nine conductors (5) are fixedly connected to the inner surface of the insulating protective shell (4).

6. The flame-retardant low-smoke halogen-free cable according to claim 1, characterized in that: Both ends of each cable are fixedly connected to mounting plates (14), and the two mounting plates (14) are fixedly connected to the inner surface of the fixing groove (15) by screws (16).

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