Variable-diameter non-combustible sleeve for reinforcing cable combustion grade

Abstract

The utility model provides a variable-diameter non-combustible sleeve for reinforcing the combustion grade of a cable, and solves the technical problem that a first sleeve of a common cable at present can only play a role in physical protection and cannot realize the function of reinforcing the combustion grade of the cable. Comprising a sleeve, an elastic layer, a first sleeve and a driving assembly. The external member is arranged on the outer wall of the cable and is provided with a flame-retardant layer coated on the outer wall of the external member; the elastic layer covers the outer wall of the external member and is provided with a flame-retardant layer coated on the outer wall of the elastic layer; the first sleeve is annularly arranged and spaced from the elastic layer, and the first sleeve is provided with a flame-retardant layer coating the outer wall of the first sleeve; the driving assembly is connected to the sleeve piece and drives the sleeve piece to reciprocate in the axial direction of the first sleeve so that the elastic layer can abut against or be spaced from the first sleeve. According to the utility model, the sleeve member, the elastic layer and the first sleeve are arranged, and each part is provided with the flame-retardant layer coated on the outer wall, so that the flame-retardant sleeve plays a role in reinforcing the combustion grade of the cable, and the diameter of the non-combustible sleeve is variable, so that the non-combustible sleeve is suitable for cables with different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a variable-diameter non-flammable sleeve for reinforcing the combustion grade of a cable. Background Art

[0002] Cable is a device for transmitting electric energy or signals, usually composed of several or several groups of wires. At present, cables have become an important part of urban infrastructure, responsible for transmitting electricity, data and communication signals. With the development of my country's economy, all walks of life have attached more and more importance to fire safety. Cables are an important carrier for transmitting electricity. When cables cause fires, serious consequences may occur, even endangering people's lives. According to statistics: In recent years, more than 60% of all kinds of electrical fires in my country are caused by electrical lines (wires and cables), which have brought immeasurable losses to personal safety and property.

[0003] The existing ordinary cable first sleeve can only play a physical protection role, and cannot achieve the role of strengthening the cable's combustion level. Utility Model Content

[0004] The utility model aims to provide a variable diameter non-flammable sleeve for reinforcing the combustion grade of cables, so as to solve the technical problem that the first sleeve of common cables can only play a role of physical protection but cannot achieve the function of reinforcing the combustion grade of cables.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A variable diameter non-flammable sleeve for reinforcing the combustion grade of a cable, comprising a kit, an elastic layer, a first sleeve and a driving assembly;

[0007] The kit is an arc-shaped plate, which is arranged on the outer wall of the cable, and the kit is provided with a flame retardant layer coated on the outer wall thereof;

[0008] The elastic layer is coated on the outer wall of the kit, and the elastic layer is provided with a flame retardant layer coated on the outer wall thereof;

[0009] The first sleeve is arranged in an annular manner and spaced from the elastic layer, and the first sleeve is provided with a flame retardant layer coated on its outer wall;

[0010] The driving assembly is connected to the sleeve, and drives the sleeve to reciprocate along the axial direction of the first sleeve, so that the elastic layer abuts against or is spaced from the first sleeve.

[0011] In some embodiments, the kit is provided in plurality, and the plurality of kits are combined to form an accommodating channel for accommodating the cable.

[0012] In some embodiments, the plurality of sets are evenly arranged along the circumference of the first sleeve.

[0013] In some embodiments, four of the sleeves are provided and are evenly arranged along the circumference of the first sleeve, and the four sleeves together form an accommodating channel for accommodating the cable.

[0014] In some embodiments, the driving assembly includes a connecting member, a rotating shaft and a driving motor, the driving motor is connected to the rotating shaft, the connecting member is a flexible member, one end of which is wound around the rotating shaft and the other end is connected to the kit, and the elastic layer is provided with an avoidance hole for the connecting member to extend out.

[0015] In some embodiments, the connecting member is a plurality of suspension wires wound around the rotating shaft, one end of the suspension wire is connected to the sleeve, and the other end of the suspension wire is connected to the rotating shaft.

[0016] In some embodiments, the flame retardant layer is coated with multiple layers.

[0017] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0018] (1) A kit is provided, which is installed on the outer wall of the cable and is provided with a flame retardant layer coated on the outer wall, so as to enhance the combustion grade of the cable.

[0019] (2) An elastic layer is provided, on which a flame retardant layer coated on the outer wall is provided, so as to further enhance the combustion grade of the cable.

[0020] (3) A first sleeve is provided, on which a flame retardant layer is coated on the outer wall, so as to further enhance the combustion grade of the cable.

[0021] (4) The kit can be driven by the driving component to reciprocate along the axial direction of the first sleeve so that the elastic layer abuts against or is spaced from the first sleeve, thereby achieving a diameter-changing effect of the sleeve and being suitable for cables of different sizes.

[0022] (5) The utility model has reasonable design and simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structure of a variable diameter non-combustible sleeve for reinforcing the combustion grade of a cable provided in an embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the structure of a variable diameter non-combustible sleeve provided on a cable for reinforcing the combustion grade of a cable provided in an embodiment of the utility model;

[0026] icon:

[0027] 100. Kit;

[0028] 200, elastic layer;

[0029] 300, first sleeve;

[0030] 410, driving motor; 420, rotating shaft; 430, connecting part. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Example

[0033] The embodiment of the present application provides a variable diameter non-flammable sleeve for reinforcing the combustion level of a cable, so as to enhance the combustion level of the cable.

[0034] See also Figure 1 as well as Figure 2 , the variable diameter non-flammable sleeve for reinforcing the combustion grade of a cable provided in an embodiment of the present application comprises a kit 100, an elastic layer 200, a first sleeve 300 and a drive assembly;

[0035] The kit 100 is an arc-shaped plate, which is arranged on the outer wall of the cable. The kit 100 is provided with a flame retardant layer coated on its outer wall, which plays a role in reinforcing the combustion grade of the cable;

[0036] The elastic layer 200 is coated on the outer wall of the kit 100. The elastic layer 200 is provided with a flame retardant layer coated on its outer wall to enhance the combustion rating of the cable. In some embodiments, the cross section of the elastic layer 200 is annular.

[0037] The first sleeve 300 is annularly arranged and spaced from the elastic layer 200. The first sleeve 300 is provided with a flame retardant layer coated on its outer wall to enhance the combustion grade of the cable. In some embodiments, the cross section of the first sleeve 300 is annular;

[0038] The driving assembly is connected to the sleeve 100 and drives the sleeve 100 to reciprocate along the axial direction of the first sleeve 300. Since the elastic layer 200 is coated on the outer wall of the sleeve 100, the driving action of the driving assembly causes the elastic layer 200 to abut against or be spaced from the first sleeve 300.

[0039] In some embodiments, a plurality of kits 100 are provided, and the plurality of kits 100 are combined to form an accommodation channel for accommodating cables. In some embodiments, four kits 100 are provided. In some embodiments, each kit 100 is of equal size. In some embodiments, a plurality of kits 100 are combined to form a cylinder, and the cylinder is provided with an accommodation channel.

[0040] In some embodiments, a plurality of sets 100 are evenly arranged along the circumference of the first sleeve 300 . In some embodiments, the sets 100 are arranged on the inner side of the first sleeve 300 . In some embodiments, the elastic layer 200 is arranged between the first sleeve 300 and the sets 100 .

[0041] In some embodiments, four sets 100 are provided and are evenly arranged along the circumference of the first sleeve 300, and the four sets 100 together form an accommodating channel for accommodating the cable. In some embodiments, the edges of the four sets 100 are in contact with each other.

[0042] In some embodiments, the driving assembly includes a connecting member 430, a rotating shaft 420 and a driving motor 410. The driving motor 410 is connected to the rotating shaft 420. The connecting member 430 is a flexible member, one end of which is wrapped around the rotating shaft 420 and the other end is connected to the sleeve 100. The elastic layer 200 is provided with an avoidance hole for the connecting member 430 to extend out, so that the driving motor 410 drives the rotating shaft 420 to rotate. The rotating shaft 420 drives the connected flexible member to wrap around the rotating shaft 420, so that the length of the flexible member outside changes, so as to drive the sleeve 100 to approach or move away from the first sleeve 300, thereby driving the elastic layer 200 coated outside the sleeve 100 to approach or move away from the first sleeve 300, thereby achieving an overall diameter change effect.

[0043] In some embodiments, the connecting member 430 is a plurality of suspension wires wound around the rotating shaft 420, one end of the suspension wire is connected to the kit 100, and the other end is connected to the rotating shaft 420. In some embodiments, the plurality of suspension wires are arranged at axial intervals along the first sleeve 300, one end of the suspension wire is connected to the kit 100, and the other end is wound around the rotating shaft 420.

[0044] In some embodiments, the flame retardant layer is coated with multiple layers to further enhance the combustion rating of the cable.

[0045] The following is a detailed description of the use process of the variable diameter non-combustible sleeve of the reinforcing cable combustion grade of the present application:

[0046] The variable diameter non-flammable sleeve for reinforcing the combustion grade of the cable of the present application drives the rotating shaft 420 to rotate through the driving motor 410 in the driving assembly. The rotating shaft 420 drives the connected flexible member to be wound around the rotating shaft 420 so that the length of the flexible member outside changes, so as to drive the kit 100 to approach or move away from the first sleeve 300, thereby driving the elastic layer 200 coated on the outside of the kit 100 to approach or move away from the first sleeve 300, thereby achieving an overall variable diameter effect. It is sleeved on the cable so that the cable is located on the inner side of the kit 100, and is suitable for cables of various sizes.

[0047] The variable diameter non-combustible sleeve for reinforcing the combustion grade of the cable of the present application has at least the following advantages:

[0048] (1) A kit is provided, which is installed on the outer wall of the cable and is provided with a flame retardant layer coated on the outer wall, so as to enhance the combustion grade of the cable.

[0049] (2) An elastic layer is provided, on which a flame retardant layer coated on the outer wall is provided, so as to further enhance the combustion grade of the cable.

[0050] (3) A first sleeve is provided, on which a flame retardant layer is coated on the outer wall, so as to further enhance the combustion grade of the cable.

[0051] (4) The kit can be driven by the driving component to reciprocate along the axial direction of the first sleeve so that the elastic layer abuts against or is spaced from the first sleeve, thereby achieving a diameter-changing effect of the sleeve and being suitable for cables of different sizes.

[0052] (5) The utility model has reasonable design and simple structure.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A variable diameter non-combustible sleeve for reinforcing the combustion grade of a cable, characterized in that: include: The kit is an arc-shaped plate, which is arranged on the outer wall of the cable, and the kit is provided with a flame retardant layer coated on the outer wall thereof; An elastic layer, covering the outer wall of the kit, wherein the elastic layer is provided with a flame retardant layer coated on the outer wall thereof; A first sleeve, arranged in an annular manner and spaced from the elastic layer, wherein the first sleeve is provided with a flame retardant layer coated on an outer wall thereof; The driving assembly is connected to the sleeve and drives the sleeve to reciprocate along the axial direction of the first sleeve so that the elastic layer abuts against or is spaced from the first sleeve.

2. The variable diameter non-combustible sleeve for reinforcing the combustion grade of the cable according to claim 1 is characterized in that: There are a plurality of the kits, and the plurality of the kits are combined to form an accommodating channel for accommodating cables.

3. The variable diameter non-combustible sleeve for reinforcing the combustion grade of the cable according to claim 2 is characterized in that: The multiple sets are evenly arranged along the circumference of the first sleeve.

4. The variable diameter non-combustible sleeve for reinforcing the combustion grade of the cable according to claim 3 is characterized in that: There are four sets of the kits, which are evenly arranged along the circumference of the first sleeve, and the four sets of the kits together form an accommodating channel for accommodating the cable.

5. The variable diameter non-combustible sleeve for reinforcing the combustion grade of a cable according to any one of claims 1 to 4, characterized in that: The driving assembly includes a connecting piece, a rotating shaft and a driving motor, wherein the driving motor is connected to the rotating shaft, the connecting piece is a flexible piece, one end of which is wound around the rotating shaft and the other end is connected to the kit, and the elastic layer is provided with an avoidance hole for the connecting piece to extend out.

6. The variable diameter non-combustible sleeve for reinforcing the combustion grade of the cable according to claim 5 is characterized in that: The connecting member is a plurality of suspension wires wound around the rotating shaft, one end of the suspension wire is connected to the sleeve, and the other end is connected to the rotating shaft.

7. The variable diameter non-combustible sleeve for reinforcing the combustion grade of a cable according to any one of claims 1 to 4, characterized in that: The flame retardant layer is coated with multiple layers.

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