A fireproof wrapping tape and cable

Abstract

This utility model discloses a fireproof wrapping tape and a cable, relating to the field of fire-resistant and heat-insulating technology. The fireproof wrapping tape includes a fireproof and heat-insulating layer and a first protective layer. The first protective layer and the fireproof and heat-insulating layer are stacked and sewn together by a seam. The seam is located in the middle of the width of the fireproof wrapping tape and extends along its length. Compared with the prior art, the fireproof wrapping tape provided by this utility model has a simple structure due to the use of a stacked first protective layer and a fireproof and heat-insulating layer, as well as a seam located in the middle of the fireproof wrapping tape and extending along its length. It allows for rapid material bonding through single-needle sewing, simplifying the bonding process, improving production efficiency, and enhancing economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of fire-resistant and heat-insulating technology, specifically to a fireproof wrapping tape and a cable. Background Technology

[0002] Currently, the cable industry commonly uses insulating materials such as ceramic silicone tape and refractory putty to wrap cables to prevent them from burning out and short-circuiting in the event of a fire, thus avoiding major safety accidents. However, the structure of current insulating materials is relatively complex, and the composite process of the various materials is cumbersome, resulting in low production efficiency and poor economic benefits.

[0003] In view of this, it is particularly important to design and manufacture a fireproof wrapping tape and cable with a simple structure that is easy to composite, especially in cable production. Utility Model Content

[0004] The purpose of this utility model is to provide a fireproof wrapping tape with a simple structure that can quickly achieve material composite through single-needle sewing, simplifying the composite process, improving production efficiency, and enhancing economic benefits.

[0005] Another objective of this invention is to provide a cable in which the fireproof wrapping tape has a simple structure, enabling rapid material bonding through single-needle sewing, simplifying the bonding process, improving production efficiency, and enhancing economic benefits.

[0006] This utility model is achieved by the following technical solution.

[0007] A fireproof wrapping tape includes a fireproof insulation layer and a first protective layer. The first protective layer and the fireproof insulation layer are stacked and sewn together by a seam. The seam is located in the middle of the width direction of the fireproof wrapping tape and extends along the length direction of the fireproof wrapping tape.

[0008] Optionally, the stitch length of the sutures can range from 3mm to 60mm.

[0009] Optionally, the fireproof and heat-insulating layer includes at least one of silica micro / nanofiber aerogel paper, aluminum silicate fiber paper, and ceramic fiber paper.

[0010] Optionally, the extension direction of the fiber material in the fireproof insulation layer is set at a preset angle to the extension direction of the seam, with the preset angle ranging from 45 degrees to 135 degrees.

[0011] Optionally, the first protective layer includes at least one of nonwoven fabric, glass fiber cloth, and high-silica fiber cloth.

[0012] Optionally, the suture includes at least one of cotton fiber suture, chemical fiber suture, glass fiber suture, and ceramic fiber suture.

[0013] Optionally, the thickness of the fireproof insulation layer ranges from 0.1mm to 1mm;

[0014] And / or, the thickness of the first protective layer ranges from 0.05mm to 1.5mm;

[0015] And / or, the width of the fireproof wrapping tape ranges from 10mm to 500mm;

[0016] And / or, the length of the fireproof wrapping tape ranges from 1m to 1000m.

[0017] Optionally, the fireproof wrapping tape also includes a second protective layer, with a fireproof and heat-insulating layer disposed between the first and second protective layers. The first protective layer, the fireproof and heat-insulating layer, and the second protective layer are all sewn together with stitches.

[0018] Optionally, the first protective layer and the second protective layer are integrally formed and together constitute the total protective layer, and the total protective layer is folded in half to form the first protective layer and the second protective layer.

[0019] A cable includes a cable body and the aforementioned fireproof wrapping tape. The fireproof wrapping tape is wrapped around the cable body. The fireproof wrapping tape includes a fireproof insulation layer and a first protective layer. The first protective layer and the fireproof insulation layer are stacked and sewn together by a seam. The seam is located in the middle of the width direction of the fireproof wrapping tape and extends along the length direction of the fireproof wrapping tape.

[0020] The fireproof wrapping tape and cable provided by this utility model have the following beneficial effects:

[0021] The fireproof wrapping tape provided by this utility model comprises a first protective layer and a fireproof insulation layer stacked together and sewn together. The sewing thread is located in the middle of the width of the fireproof wrapping tape and extends along the length of the fireproof wrapping tape. Compared with the prior art, the fireproof wrapping tape provided by this utility model has a simple structure due to the use of a stacked first protective layer and a fireproof insulation layer, as well as a sewing thread located in the middle of the fireproof wrapping tape and extending along the length of the fireproof wrapping tape. It can quickly achieve material bonding through single-needle sewing, simplifying the bonding process, improving production efficiency, and enhancing economic benefits.

[0022] The cable provided by this utility model has a simple fireproof wrapping tape structure, which can quickly achieve material composite by single-needle sewing, simplifying the composite process, improving production efficiency, and enhancing economic benefits. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the cable structure provided in the first embodiment of the present invention;

[0025] Figure 2 This is a front view of the fireproof wrapping tape provided in the first embodiment of this utility model;

[0026] Figure 3 A top view of the fireproof wrapping tape provided in the first embodiment of this utility model;

[0027] Figure 4 This is a front view of the fireproof wrapping tape provided in the second embodiment of this utility model;

[0028] Figure 5 The left view of the fireproof wrapping tape provided in the third embodiment of this utility model.

[0029] Icons: 10-Cable; 100-Fireproof wrapping tape; 110-Fireproof insulation layer; 120-First protective layer; 130-Sewing thread; 140-Second protective layer; 150-Auxiliary layer; 160-Total protective layer; 200-Cable body. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0036] First Embodiment

[0037] Please refer to the reference. Figures 1 to 3 This utility model embodiment provides a cable 10 for transmitting electricity or electrical signals. The fire-resistant wrapping tape 100 has a simple structure and can be quickly composited using a single-needle sewing method, simplifying the composite process, improving production efficiency, and enhancing economic benefits.

[0038] It should be noted that cable 10 includes cable body 200 and fireproof wrapping tape 100. Fireproof wrapping tape 100 is wrapped around cable body 200. Fireproof wrapping tape 100 has good fire resistance, heat insulation, insulation and thermochemical stability. Fireproof wrapping tape 100 is used to protect cable body 200 so that cable body 200 can be used normally under conditions such as flame, high temperature and voltage, and prevents cable body 200 from being quickly burned and short-circuited in the event of a fire, thus avoiding major safety accidents.

[0039] The fireproof wrapping tape 100 includes a fireproof insulation layer 110 and a first protective layer 120. The first protective layer 120 and the fireproof insulation layer 110 are stacked and sewn together by a seam 130 to fix their relative positions and prevent displacement of the first protective layer 120 relative to the fireproof insulation layer 110. When the fireproof wrapping tape 100 is wrapped around the cable body 200, the cable body 200 is located inside the fireproof insulation layer 110, while the first protective layer 120 covers the outside of the fireproof insulation layer 110 to shield and protect it and improve the aesthetics of the fireproof wrapping tape 100. The fireproof insulation layer 110 has good fire resistance, heat insulation, electrical insulation and thermochemical stability to achieve fire resistance and heat insulation functions. Specifically, the stitch 130 is located in the middle of the width of the fireproof wrapping tape 100 and extends along the length of the fireproof wrapping tape 100 to quickly sew the first protective layer 120 and the fireproof insulation layer 110 together. In this way, the first protective layer 120 and the fireproof insulation layer 110 are quickly bonded together using a single-needle sewing method. The sewing process is simple, the requirements for sewing equipment are low, and it can effectively simplify the bonding steps while ensuring fire resistance and heat insulation effects, thereby improving production efficiency and economic benefits.

[0040] Furthermore, the stitch spacing of the seam 130 is between 3mm and 60mm. A reasonable stitch spacing can ensure that the material inside the fireproof insulation layer 110 will not be broken by the needle due to the small stitch spacing, thereby avoiding the situation where the material inside the fireproof insulation layer 110 falls off.

[0041] Preferably, the fireproof and heat-insulating layer 110 includes at least one of silica micro / nanofiber aerogel paper, aluminum silicate fiber paper, and ceramic fiber paper. Specifically, the silica micro / nanofiber aerogel paper is composed of interwoven layers of silicon-based ceramic micro / nanofibers. The resulting product can be understood as an aerogel felt or aerogel paper formed by silica micro / nanofibers as a whole, possessing superior properties such as low thermal conductivity, fire resistance, flame retardancy, heat insulation, sound insulation, noise reduction, low density, good flexibility, compressibility, resilience, and hydrophobicity. Specifically, the silica micro / nanofiber aerogel paper plays a major role in fire resistance, heat insulation, flame retardancy, and insulation. It can withstand high temperatures and can work stably for a long time in an environment of 1000℃ without oxidation, discoloration, deformation, or brittleness. When the material temperature reaches 1200℃, the silica micro / nanofiber aerogel paper can maintain effective heat insulation for 1 hour, effectively delaying thermal runaway, failure, or short-circuit ignition of the cable body 200 in a fire environment. Furthermore, the silica micro-nanofiber aerogel paper possesses resilience and compression recovery properties. It can be wrapped by the first protective layer 120 under compression and sewn together using stitching 130. Therefore, when the first protective layer 120 fails, the silica micro-nanofiber aerogel paper will rebound, increasing the overall thickness of the fireproof wrapping tape 100 and further enhancing its fire resistance and heat insulation effect. Moreover, the silica micro-nanofiber aerogel paper exhibits excellent fire resistance. Compared to existing ceramicized silicone foam, which only becomes ceramicized and truly provides fire resistance at ambient temperatures of 300℃~500℃ or even higher, the silica micro-nanofiber aerogel paper in this invention is a ceramicized material from the beginning, meaning it is already ceramicized at room temperature. Combined with the material's softness, this makes the fireproof wrapping tape 100 more flexible, allowing it to wrap around cable bodies 200 with diameters of 2mm or less, thereby improving wrapping efficiency while ensuring fire resistance and heat insulation performance.

[0042] Alumina silicate fiber paper is a lightweight thermal insulation material made from carefully selected alumina silicate ceramic fiber cotton using a wet molding process. It features good temperature resistance, high tensile strength, and adjustable density. Specifically, alumina silicate fiber paper has a continuous temperature resistance of 420℃ to 1400℃ and a thermal conductivity range of 0.03-0.17 W / m·K, effectively delaying thermal runaway, failure, or short-circuit fire of the cable body 200 in a fire environment.

[0043] Ceramic fiber paper is made from carefully selected aluminosilicate ceramic fiber cotton using a wet molding process. Its characteristics include being asbestos-free, having uniform fiber distribution, a pure white color, no delamination, few slag balls, adjustable density for various applications, high strength, good elasticity, and strong machinability. It also possesses excellent heat insulation, electrical insulation, sound insulation, and sealing properties. Specifically, ceramic fiber paper has a sustained temperature resistance of up to 1260℃ to 1400℃, effectively delaying thermal runaway, failure, or short-circuit fire of the cable body 200 in a fire environment.

[0044] It is worth noting that when the fireproof wrapping tape 100 is wrapped around the cable body 200, it wraps around the outer surface of the cable body 200, which means that the fireproof wrapping tape 100 can wrap around the same position multiple times. That is, the same position on the outer surface of the cable body 200 can be shielded and protected by multiple layers of fireproof wrapping tape 100, so as to greatly improve the upper limit of the high temperature resistance of the cable body 200.

[0045] Furthermore, since silica micro / nanofiber aerogel paper, aluminosilicate fiber paper, and ceramic fiber paper are all made of fibrous materials, the positioning of the fibrous materials needs to be considered during the sewing process of the fireproof insulation layer 110 to prevent them from falling off. Specifically, the extension direction of the fibrous material within the fireproof insulation layer 110 is set at a preset angle to the extension direction of the seam 130. The preset angle ranges from 45 degrees to 135 degrees. A reasonable preset angle can ensure that the seam 130 reliably positions the fibrous material within the fireproof insulation layer 110 during the sewing process, preventing the fibrous material from falling off and improving structural stability.

[0046] In this embodiment, the preset angle is 90 degrees, meaning that the extension direction of the fiber material within the fireproof and heat-insulating layer 110 is perpendicular to the extension direction of the seam 130. However, this is not the only limitation; in other embodiments, the preset angle can be 45 degrees or 135 degrees, and the specific size of the preset angle is not limited.

[0047] Preferably, the first protective layer 120 includes at least one of non-woven fabric, fiberglass cloth, and high-silica fiber cloth. Non-woven fabric is primarily for applications that do not require A1 fire resistance (meeting V0 requirements), and it is cheaper and can improve the tensile strength of the fireproof wrapping tape 100, enabling it to meet tensile strengths of 0.5 GPa or higher. Fiberglass cloth maintains stable performance in both low and medium-high temperature environments and has strong chemical stability, making it suitable for heat insulation and fireproofing in acidic and alkaline environments. Furthermore, fiberglass cloth is non-combustible and has excellent electrical insulation properties, making it ideal for use as insulation layers in electronic devices and for reinforcing plastics. High-silica fiber cloth can withstand temperatures up to 1050℃ for extended periods and instantaneously up to 1700℃, exhibiting extremely high thermal stability at high temperatures and excellent thermal shock resistance. It also demonstrates outstanding ablation resistance and shows no shrinkage or melting at high temperatures.

[0048] Preferably, the stitching 130 includes at least one of cotton fiber thread, chemical fiber thread, glass fiber thread, and ceramic fiber thread. Cotton fiber thread exhibits excellent alkali resistance, can withstand alkaline solution treatment, is easy to clean and process, and is biodegradable, decomposing naturally after disposal. Chemical fiber thread can be petroleum byproduct fibers such as PET and PP, possessing good insulation properties. Glass fiber thread can operate stably below 650℃ and can be used in applications where the fireproof wrapping tape 100 has non-combustible properties. Ceramic fiber thread can operate stably for extended periods at temperatures up to 1000℃.

[0049] Furthermore, the first protective layer 120 and the fireproof and heat-insulating layer 110 are sewn together using thread 130. The cotton fiber thread, chemical fiber thread, glass fiber thread and ceramic fiber thread are all made of fiber materials. Under high temperature environment, the fiber materials in the thread 130 will increase the interweaving force, thereby preventing the first protective layer 120 from separating from the fireproof and heat-insulating layer 110.

[0050] Preferably, the thickness of the fireproof insulation layer 110 ranges from 0.1mm to 1mm. Specifically, the thickness of the fireproof insulation layer 110 can be determined as needed and is not limited to the above range; in practice, it can be designed to be 0.15mm, 0.2mm, 11mm, 12mm, etc. Further, the thickness of the fireproof insulation layer 110 is preferably 0.25mm-10mm, which is a moderate thickness that ensures good overall performance in terms of strength and heat resistance. Even further, the optimal thickness of the fireproof insulation layer 110 is 0.1mm-2mm, at which point the overall performance of the fireproof wrapping tape 100 is optimal.

[0051] Preferably, the thickness of the first protective layer 120 ranges from 0.05mm to 1.5mm. Specifically, the thickness of the first protective layer 120 can be determined as needed and is not limited to the above range. In practice, it can be designed as needed, such as 0.03mm, 0.04mm, 2mm, 3mm, etc. Further, the thickness of the first protective layer 120 is preferably 0.05mm-1.5mm, which is moderate and can ensure that the surface strength and other comprehensive properties of the first protective layer 120 are optimal.

[0052] Preferably, the width of the fireproof wrapping tape 100 ranges from 10mm to 500mm.

[0053] Preferably, the length of the fireproof wrapping tape 100 ranges from 1m to 1000m.

[0054] The fireproof wrapping tape 100 provided in this embodiment of the invention comprises a first protective layer 120 and a fireproof insulation layer 110 stacked together and sewn together by a seam 130. The seam 130 is located in the middle of the width direction of the fireproof wrapping tape 100 and extends along the length direction of the fireproof wrapping tape 100. Compared with the prior art, the fireproof wrapping tape 100 provided in this invention has a simple structure due to the use of the stacked first protective layer 120 and fireproof insulation layer 110, and the seam 130 located in the middle of the fireproof wrapping tape 100 and extending along the length direction of the fireproof wrapping tape 100. It can quickly achieve material composite by single-needle sewing, simplifying the composite process, improving production efficiency, and enhancing economic benefits. This allows the cable 10 to maintain normal operation in high-temperature environments and provides good fire protection.

[0055] Second Embodiment

[0056] Please refer to Figure 4 This utility model embodiment provides a fireproof wrapping tape 100. Compared with the first embodiment, the difference in this embodiment is that the fireproof wrapping tape 100 also includes a second protective layer 140.

[0057] In this embodiment, the fireproof and heat-insulating layer 110 is disposed between the first protective layer 120 and the second protective layer 140. The first protective layer 120, the fireproof and heat-insulating layer 110, and the second protective layer 140 are all sewn together by a seam 130. The seam 130 can simultaneously fix the relative positions of the first protective layer 120, the fireproof and heat-insulating layer 110, and the second protective layer 140, preventing the first protective layer 120 and the second protective layer 140 from detaching from the fireproof and heat-insulating layer 110. Specifically, the first protective layer 120 and the second protective layer 140 can shield and protect the fireproof and heat-insulating layer 110 from both inside and outside directions, eliminating the need to distinguish between the front and back of the fireproof wrapping tape 100, making it convenient to use.

[0058] In this embodiment, the first protective layer 120 and the second protective layer 140 are separately provided, and the specific structure of the second protective layer 140 is the same as that of the first protective layer 120, which will not be described again here.

[0059] Preferably, the fireproof wrapping tape 100 further includes an auxiliary layer 150. The auxiliary layer 150 is disposed between the first protective layer 120 and the second protective layer 140, and is stacked with the fireproof insulation layer 110. The first protective layer 120, the auxiliary layer 150, the fireproof insulation layer 110 and the second protective layer 140 are all sewn together by seams 130. The auxiliary layer 150 can be disposed between the first protective layer 120 and the fireproof insulation layer 110, or between the second protective layer 140 and the fireproof insulation layer 110, to help improve the fire resistance and heat insulation performance of the fireproof wrapping tape 100.

[0060] Specifically, the auxiliary layer 150 includes at least one of polytetrafluoroethylene (PTFE) cloth and polypropylene film. The PTFE cloth is a fiber cloth made by impregnating high-performance glass fiber cloth with a suspended PTFE emulsion. It has strong weather resistance, non-adhesiveness, strong chemical corrosion resistance, low coefficient of friction, high insulation performance, UV protection, antistatic properties, and high strength, making it very suitable for applications involving electrical components. The polypropylene film is used to improve the insulation performance of the fireproof wrapping tape 100 at room temperature.

[0061] The beneficial effects of the fireproof wrapping tape 100 provided in this embodiment are the same as those in the first embodiment, and will not be repeated here.

[0062] Third Embodiment

[0063] Please refer to Figure 5 This utility model embodiment provides a fireproof wrapping tape 100. Compared with the second embodiment, the difference in this embodiment is that the first protective layer 120 and the second protective layer 140 are integrally formed.

[0064] In this embodiment, the first protective layer 120 and the second protective layer 140 are integrally formed and together constitute the total protective layer 160. The total protective layer 160 is folded in half to form the first protective layer 120 and the second protective layer 140, so that the fireproof and heat-insulating layer 110 and the auxiliary layer 150 are sandwiched between the first protective layer 120 and the second protective layer 140. Then, the first protective layer 120, the auxiliary layer 150, the fireproof and heat-insulating layer 110 and the second protective layer 140 are sewn together with the stitch 130 to improve the structural stability.

[0065] The beneficial effects of the fireproof wrapping tape 100 provided in this embodiment are the same as those in the first embodiment, and will not be repeated here.

[0066] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fireproof wrapping tape, characterized in that, It includes a fireproof and heat-insulating layer and a first protective layer. The first protective layer and the fireproof and heat-insulating layer are stacked and sewn together by a seam. The seam is located in the middle of the width direction of the fireproof wrapping tape and extends along the length direction of the fireproof wrapping tape.

2. The fireproof wrapping tape according to claim 1, characterized in that, The stitch length of the sutures ranges from 3mm to 60mm.

3. The fireproof wrapping tape according to claim 1, characterized in that, The fireproof and heat-insulating layer includes at least one of silica micro / nanofiber aerogel paper, aluminum silicate fiber paper, and ceramic fiber paper.

4. The fireproof wrapping tape according to claim 3, characterized in that, The extension direction of the fiber material in the fireproof and heat-insulating layer is set at a preset angle to the extension direction of the seam, and the preset angle ranges from 45 degrees to 135 degrees.

5. The fireproof wrapping tape according to claim 1, characterized in that, The first protective layer comprises at least one of nonwoven fabric, glass fiber cloth, and high silica fiber cloth.

6. The fireproof wrapping tape according to claim 1, characterized in that, The suture includes at least one of cotton fiber suture, chemical fiber suture, glass fiber suture, and ceramic fiber suture.

7. The fireproof wrapping tape according to claim 1, characterized in that, The thickness of the fireproof and heat-insulating layer ranges from 0.1mm to 1mm; And / or, the thickness of the first protective layer ranges from 0.05mm to 1.5mm; And / or, the width of the fireproof wrapping tape ranges from 10mm to 500mm; And / or, the length of the fireproof wrapping tape ranges from 1m to 1000m.

8. The fireproof wrapping tape according to any one of claims 1-7, characterized in that, The fireproof wrapping material also includes a second protective layer, and the fireproof and heat-insulating layer is disposed between the first protective layer and the second protective layer. The first protective layer, the fireproof and heat-insulating layer and the second protective layer are all sewn together by the seam.

9. The fireproof wrapping tape according to claim 8, characterized in that, The first protective layer and the second protective layer are integrally formed and together constitute the total protective layer. The total protective layer is folded in half to form the first protective layer and the second protective layer.

10. A cable, characterized in that, It includes a cable body and a fire-resistant wrapping tape as described in any one of claims 1-9, wherein the fire-resistant wrapping tape is wrapped around the cable body.

Images