Rat-proof termite-proof mineral insulated flexible fireproof cable

Abstract

The invention relates to the technical field of cables, and provides a rat-proof and termite-proof mineral insulated flexible fireproof cable, which comprises a cable core, a transition layer, a protective layer and a plurality of protective capsules, the transition layer comprises a mineral insulating layer and a fireproof layer, the mineral insulating layer wraps the outer surface of the cable core, and the fireproof layer wraps the outer surface of the mineral insulating layer; the protective layer wraps the outer surface of the transition layer; the plurality of protective capsules are detachably arranged on the outer surface of the protective layer, and the protective capsules are filled with materials with rat-proof and termite-proof effects; the protective capsule is at least partially exposed to outside air. According to the rat-proof termite-proof mineral insulated flexible fireproof cable, the cable is easy to bend, the activity of the cable is improved, the service life of the cable is prolonged, only the protective capsule needs to be replaced when the cable is damaged, and compared with the replacement of the whole cable, the maintenance cost is reduced, the time required for replacing the cable is shortened, and it is ensured that the cable can run continuously and reliably.

Description

Technical Field

[0001] The present application relates to the field of cable technology, and in particular to a rat-proof and termite-proof mineral insulated flexible fireproof cable. Background Art

[0002] A cable is an electrical wire used to transmit electrical energy or signals, usually consisting of a metal conductor, an insulation layer and a protective sheath.

[0003] Cables in the related art usually need to be laid outdoors in complex environments to prevent being gnawed by rats and termites, as well as being damaged by high temperatures and wildfires. Existing technologies usually increase the hardness and thickness of the protective cover to enhance the cable's ability to resist damage and interference, but this reduces the cable's mobility. When the cable is damaged by being gnawed by rats or termites, the entire cable often needs to be replaced, which increases the cable's maintenance cost and makes maintenance operations difficult. Summary of the invention

[0004] The embodiment of the present application provides a rat-proof and termite-proof mineral insulated flexible fireproof cable, which can improve the technical problems in the related art that the cable has poor mobility due to the use of a protective sheath with strong integrity, and needs to be replaced in entirety when damaged, which is difficult to operate.

[0005] The present application provides a rat-proof and termite-proof mineral insulated flexible fire-proof cable, comprising:

[0006] Cable core;

[0007] A transition layer, wherein the transition layer comprises a mineral insulation layer and a fireproof layer, wherein the mineral insulation layer is wrapped around the outer surface of the cable core, and the mineral insulation layer is used to insulate and isolate the cable core from the outside; the fireproof layer is wrapped around the outer surface of the mineral insulation layer, and the fireproof layer is used to prevent the cable core from being ignited;

[0008] a protective layer, the protective layer being wrapped around the outer surface of the transition layer; and

[0009] A plurality of protective capsules are detachably arranged on the outer surface of the protective layer, wherein the protective capsules are filled with materials having the functions of preventing rats and termites; and the protective capsules are at least partially exposed to the external air.

[0010] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0011] The rat-proof and termite-proof mineral insulated flexible fireproof cable provided in the embodiment of the present application is provided by coating a transition layer including a mineral insulation layer and a fireproof layer on the outer side of the cable core, and a protective layer is further coated on the outer side of the transition layer, and a detachable protective capsule is arranged on the outer surface of the protective layer, and a material having rat-proof and termite-proof effects is filled in the protective capsule, and the protective capsule is at least partially exposed to the outside air. By providing a plurality of protective capsules protruding from the outer surface of the protective layer in contact with the outside world, the integrity of the outer surface of the cable can be reduced, thereby making the cable easy to bend, and reducing the contact area between the cable and the outside world, improving the mobility of the cable, protecting the cable to reduce physical damage, and significantly improving the service life of the cable. When damaged, only the protective capsule needs to be replaced, which helps to reduce maintenance costs and the time required to replace the cable compared to replacing the entire cable, thereby ensuring that the cable can continue to operate reliably.

[0012] In some embodiments, the protective layer comprises:

[0013] A protective layer skeleton is wrapped around the outer surface of the transition layer. The outer surface of the protective layer skeleton is provided with a plurality of storage grooves. Each of the protective capsules is detachably arranged in one of the storage grooves.

[0014] In some embodiments, the protective capsule includes a capsule shell, which is detachably disposed in the storage slot; the outer surface of the capsule shell on a side away from the storage slot is coated with a material with anti-rat and anti-termite effects; the interior of the capsule shell is hollow to form a accommodating space, and the accommodating space is filled with a material with anti-rat and anti-termite effects and compressed gas; the compressed gas is used to make the air pressure in the accommodating space greater than the atmospheric pressure outside the capsule shell.

[0015] In some embodiments, the protective layer further includes a plurality of limiting portions, at least one of the limiting portions is disposed on the inner side wall of each of the storage slots, and the limiting portions are used to detachably clamp the protective capsule in the storage slot.

[0016] In some embodiments, the compressed gas is a compressed flame-retardant gas; the melting point of the capsule shell is lower than the melting point of the protective layer skeleton.

[0017] In some embodiments, a plurality of the storage slots are arranged along the circumferential direction of the protective layer skeleton to form a storage slot group; a plurality of the storage slot groups are arranged side by side along the axial direction of the protective layer skeleton; or any two adjacent storage slot groups are staggered along the axial direction of the protective layer skeleton.

[0018] In some embodiments, the distance between two adjacent storage grooves is greater than 2 mm and less than or equal to 2.5 mm; the distance that the capsule shell protrudes from the protective layer skeleton is greater than 2 mm and less than or equal to 2.5 mm.

[0019] In some embodiments, the protective layer also includes a plurality of capsule integrity detection devices, which are arranged at intervals on the protective layer skeleton, and the capsule integrity detection devices are used to detect the integrity of the protective capsules in a first area; the first areas of any two capsule integrity detection devices do not overlap, and the first areas of all the capsule integrity detection devices can cover all the protective capsules on the protective layer skeleton.

[0020] In some embodiments, the protective layer also includes a plurality of damage indication devices, and the plurality of damage indication devices are arranged one-to-one on the capsule integrity detection device, and the damage indication devices are electrically connected to the capsule integrity detection devices corresponding to the damage indication devices, and the damage indication devices are used to send a prompt signal when the capsule integrity detection device detects that the protective capsule is incomplete.

[0021] In some embodiments, the capsule integrity detection device is capable of distinguishing the incomplete protective capsule into a damaged capsule and an artificial capsule;

[0022] The protective layer further comprises an automatic destruction device, which is arranged in the storage slot; the automatic destruction device is electrically connected to the capsule integrity detection device which is closest to the storage slot; the automatic destruction device is used to destroy the protective capsule in the storage slot after receiving a signal from the capsule integrity detection device;

[0023] Among them, the damaged capsule is the protective capsule that is broken due to being gnawed by rats, termites or high temperature, and the artificial capsule is the protective capsule that is removed manually or falls off due to improper installation; the capsule integrity detection device is used to send a signal to all the automatic destruction devices in the first area when the damaged capsule is detected in the first area. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 A schematic diagram of the structure of a rat-proof and termite-proof mineral insulated flexible fireproof cable provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the structure of a rat-proof and termite-proof mineral insulated flexible fire-proof cable provided in an embodiment of the present application when a protective capsule is not installed;

[0027] Figure 3 A schematic diagram of the structure of the staggered arrangement of the storage slot groups of the rat-proof and termite-proof mineral insulated flexible fire-proof cable provided in the embodiment of the present application;

[0028] Figure 4 A cross-sectional view of a protective capsule provided in an embodiment of the present application.

[0029] Among them, the reference numerals in the figure are:

[0030] 100. Rat-proof and termite-proof mineral insulated flexible fireproof cable; 10. Cable core; 20. Transition layer; 21. Mineral insulation layer; 22. Fireproof layer; 30. Protective layer; 31. Protective layer skeleton; 311. Storage slot; 32. Limiting part; 33. Capsule integrity detection device; 34. Damage warning device; 35. Automatic destruction device; 40. Protective capsule; 41. Capsule shell; 411. Accommodation space. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0037] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] A cable is an electrical wire used to transmit electrical energy or signals, usually consisting of a metal conductor, an insulation layer and a protective sheath.

[0039] Cables in the related art usually need to be laid outdoors in complex environments to prevent being gnawed by rats and termites, as well as being damaged by high temperatures and wildfires. Existing technologies usually increase the hardness and thickness of the protective cover to enhance the cable's ability to resist damage and interference, but this reduces the cable's mobility. When the cable is damaged by being gnawed by rats or termites, the entire cable often needs to be replaced, which increases the cable's maintenance cost and makes maintenance operations difficult.

[0040] Based on this, in order to improve the problem in the related art that the cable has poor mobility due to the use of a protective cover with strong integrity, and needs to be replaced in its entirety when damaged, which is difficult to operate, the embodiment of the present application provides the following solution.

[0041] Please also read Figure 1 and Figure 2The embodiment of the present application provides a rat-proof and termite-proof mineral insulated flexible fire-proof cable 100. The rat-proof and termite-proof mineral insulated flexible fire-proof cable 100 includes a cable core 10, a transition layer 20, a protective layer 30 and a plurality of protective capsules 40; the transition layer 20 includes a mineral insulation layer 21 and a fireproof layer 22, the mineral insulation layer 21 is wrapped on the outer surface of the cable core 10, and the mineral insulation layer 21 is used to insulate and isolate the cable core 10 from the outside; the fireproof layer 22 is wrapped on the outer surface of the mineral insulation layer 21, and the fireproof layer 22 is used to prevent the cable core 10 from being ignited; the protective layer 30 is wrapped on the outer surface of the transition layer 20; a plurality of protective capsules 40 are detachably arranged on the outer surface of the protective layer 30, and the protective capsules 40 are filled with materials with rat-proof and termite-proof effects; the protective capsules 40 are at least partially exposed to the outside air.

[0042] It is understood that the cable core 10 may include a conductive core and a filler strip for reinforcing the structure. The mineral insulation layer 21 may be made of silicon dioxide or mica, but is not limited thereto. The fireproof layer 22 may be made of magnesium oxide or ceramic polyolefin, but is not limited thereto. The protective layer 30 is the outermost protective structure of the cable, which protects the cable from external mechanical damage. The protective capsule 40 is a component for providing anti-rat and anti-termite effects, and the material filled inside may be dihydrocapsaicin or cypermethrin, but is not limited thereto.

[0043] As can be seen from the above, the rat-proof and termite-proof mineral insulated flexible fireproof cable 100 provided in the embodiment of the present application is provided by coating the transition layer 20 including the mineral insulation layer 21 and the fireproof layer 22 on the outside of the cable core 10, and the transition layer 20 is further coated with a protective layer 30, and a detachable protective capsule 40 is provided on the outer surface of the protective layer 30, and the protective capsule 40 is filled with a material having rat-proof and termite-proof effects, and the protective capsule 40 is at least partially exposed to the outside air. By providing a plurality of protective capsules 40 protruding from the outer surface of the protective layer 30 and contacting the outside world, the integrity of the outer surface of the cable can be reduced, thereby making the cable easy to bend, and reducing the contact area between the cable and the outside world, improving the mobility of the cable, protecting the cable to reduce physical damage, and significantly improving the service life of the cable. When damaged, only the protective capsule 40 needs to be replaced, which helps to reduce maintenance costs and the time required to replace the cable compared to replacing the entire cable, and ensures that the cable can continue to operate reliably.

[0044] In some embodiments, please refer to Figures 1 to 3 The protective layer 30 includes a protective layer skeleton 31 , which is wrapped around the outer surface of the transition layer 20 . The outer surface of the protective layer skeleton 31 is provided with a plurality of storage grooves 311 , and each protective capsule 40 is detachably disposed in a storage groove 311 .

[0045] It can be understood that the protective layer skeleton 31 is a structure coated on the outer surface of the transition layer 20. The material of the protective layer skeleton 31 can be polyvinyl chloride or cross-linked polyethylene, but is not limited thereto. The storage groove 311 is a structure for accommodating the protective capsule 40. The inner bottom surface of the storage groove 311 can be a plane or a curved surface, but is not limited thereto.

[0046] In this way, the protective layer skeleton 31 is wrapped around the outer surface of the transition layer 20, and a storage groove 311 for accommodating the protective capsule 40 is opened on the protective layer skeleton 31, so that the protective capsule 40 can be more stably arranged on the protective layer 30, reducing the possibility of the protective capsule 40 falling off, and making the protective capsule 40 easy to install, thereby reducing the number and cost of maintenance and improving the work efficiency of cable maintenance.

[0047] Optionally, in some embodiments, see Figures 1 to 4 The protective capsule 40 includes a capsule shell 41, which is detachably arranged in the storage groove 311; the outer surface of the capsule shell 41 on the side away from the storage groove 311 is coated with a material with anti-rat and anti-termite effects; the interior of the capsule shell 41 is hollow to form a accommodating space 411, and the accommodating space 411 is filled with a material with anti-rat and anti-termite effects and compressed gas; the compressed gas is used to make the air pressure in the accommodating space 411 greater than the atmospheric pressure outside the capsule shell 41.

[0048] It can be understood that the capsule shell 41 is a container for containing materials with anti-rat and anti-termite effects, and can be made of the same material as the protective layer skeleton 31. The capsule shell 41 can be clamped in the storage groove 311 by glue or by the friction between the outer surface of the capsule shell 41 and the storage groove 311, but is not limited to this. The anti-rat and anti-termite material coated on the outer surface of the capsule shell 41 away from the storage groove 311 can be the same material as the internal filling. The compressed gas filled in the capsule shell 41 is used to spray the anti-rat and anti-termite material in the capsule shell 41 outward when the capsule shell 41 is damaged by rats and termites, so as to diffuse the anti-rat and anti-termite material to achieve better anti-rat and anti-termite effects. The compressed gas can be compressed air or compressed inert gas, such as helium, nitrogen, etc., but is not limited to this.

[0049] In this way, the surface of the capsule shell 41 is coated with rat-proof and termite-proof materials, and the interior of the capsule shell 41 is filled with rat-proof and termite-proof materials and compressed gas, and the capsule shell 41 is detachably arranged in the storage groove 311, so that when the protective capsule 40 is intact, it can rely on the surface coating to drive away rats and ants. When damaged, the internal rat-proof and termite-proof materials can diffuse due to the pressure difference with the outside under the action of compressed gas, thereby expanding the scope of action, and can be disassembled and replaced after damage, thereby avoiding damage to the main body of the cable, significantly improving the service life of the cable, and reducing the time cost of maintaining the cable. In addition, by amplifying the scope of action of the rat-proof and termite-proof materials in the protective capsule 40 through compressed gas, the rat-proof and termite-proof effects can be enhanced, which helps to save resources and reduce the material cost required for cable maintenance.

[0050] Optionally, the width of the protective capsule 40 at a side away from the cable core 10 is smaller than the width of the opening of the storage slot 311 .

[0051] It can be understood that the protective capsule 40 can be in a shape with hemispherical ends and a cylindrical middle section, and can be arranged on the protective layer skeleton 31 in a direction parallel to or perpendicular to the axis of the protective layer skeleton 31, and can contact the outside through the arc surface of the cylindrical middle section of the protective capsule 40; or it can be in the shape of a truncated cone, with the bottom surface with a large radius arranged in the storage groove 311, and can contact the outside through the bottom surface with a small radius, but is not limited to this.

[0052] With such arrangement, the protective capsule 40 contacts the outside world before the outer surface of the protective layer skeleton 31, so that the replaceable protective capsule 40 is worn before the non-replaceable protective layer skeleton 31, effectively avoiding the wear of the protective layer skeleton 31 of the cable body, thereby affecting the internal transition layer 20 and cable layer, extending the service life of the cable, reducing the difficulty of maintaining the cable and the requirements for maintenance personnel, saving the cost of maintaining the cable, and the contact area between the protective capsule 40 and the outside is smaller than the contact area between the outer surface of the protective layer skeleton 31 and the outside, reducing the friction between the cable and the outside, making the cable easier to move during laying, increasing the mobility of the cable, reducing the construction difficulty of cable laying, and improving the work efficiency of cable laying.

[0053] Optionally, see Figure 1 to Figure 2 The protective layer 30 further includes a plurality of limiting portions 32 . At least one limiting portion 32 is disposed on the inner side wall of each storage slot 311 . The limiting portion 32 is used to detachably clamp the protective capsule 40 in the storage slot 311 .

[0054] It can be understood that the limiting portion 32 can prevent the protective capsule 40 from easily falling out of the storage groove 311. For example, the limiting portion 32 can be two rubber protrusions that are relatively arranged on the two inner walls of the storage groove 311 along the width direction of the storage groove 311. When the protective capsule 40 enters the storage groove 311, the two rubber protrusions are compressed and deformed to clamp the protective capsule 40 between the two. The limiting portion 32 can also be a spring that is arranged on the inner wall of one side of the storage groove 311 along the length direction of the storage groove 311. When the protective capsule 40 enters the storage groove 311, the spring is compressed so that the spring and the inner wall on the other side of the storage groove 311 jointly clamp the protective capsule 40, but the present invention is not limited to this.

[0055] In this way, by setting a limit portion 32 in the storage groove 311, the protective capsule 40 is not easy to fall out of the storage groove 311, so as to avoid the protective capsule 40 from falling off during the laying process or operation of the cable, thereby improving the quality of the cable, maintaining the normal anti-rat and anti-termite function of the cable, and reducing the maintenance frequency of the cable and the cost required for cable maintenance.

[0056] In some embodiments, see Figure 1 and Figure 4 , the compressed gas is a compressed flame-retardant gas; the melting point of the capsule shell 41 is lower than the melting point of the protective layer skeleton 31.

[0057] It is understood that the compressed flame retardant gas may be compressed helium or compressed carbon dioxide, but is not limited thereto. In order to make the melting point of the capsule shell 41 lower than the melting point of the protective layer skeleton 31, the capsule shell 41 may be made of a material with a lower melting point than the protective layer skeleton 31. For example, when the protective layer skeleton 31 is made of polyvinyl chloride with a melting point of 212°C, the capsule shell 41 may be made of cross-linked polyethylene with a melting point of 125°C; or a combustion-supporting substance may be added to the material of the capsule shell 41 to make the capsule shell 41 more flammable than the protective layer skeleton 31. For example, potassium chlorate may be added to the material of the capsule shell 41 to make the capsule shell 41 reach the melting point temperature before the protective layer skeleton 31, but is not limited thereto.

[0058] In this way, by making the melting point of the capsule shell 41 lower than the melting point of the protective layer skeleton 31, and filling the capsule shell 41 with compressed flame-retardant gas, when a fire occurs around the cable, the protective capsule 40 melts before the protective layer skeleton 31, and releases the compressed flame-retardant gas inside. The compressed flame-retardant gas diffuses, which can take away a certain amount of heat and delay or extinguish the surrounding combustion, effectively extending the normal working time of the cable, reducing the possibility of cable damage, and reducing the cost of maintaining the cable.

[0059] Optionally, in some embodiments, see Figures 1 to 3, multiple storage grooves 311 are arranged along the circumferential direction of the protective layer skeleton 31 to form a storage groove group; multiple storage groove groups are arranged side by side along the axial direction of the protective layer skeleton 31; or any two adjacent storage groove groups are staggered along the axial direction of the protective layer skeleton 31.

[0060] In this way, by arranging multiple storage slot groups side by side along the axial direction of the protective layer skeleton 31, multiple storage slots 311 along the axial direction of the protective layer skeleton 31 can be on the same straight line parallel to the axis of the protective layer skeleton 31. When the cable needs to be moved along its own axial direction, the friction along the axial direction of the cable can be reduced, the mobility of the cable is enhanced, and the efficiency of the cable laying work is improved; by staggering any two adjacent storage slot groups along the axial direction of the protective layer skeleton 31, any two adjacent storage slots 311 along the axial direction of the protective layer skeleton 31 are not on the same straight line parallel to the axis of the protective layer skeleton 31, so that when the cable is bent, any protective capsule 40 can move between two adjacent protective capsules 40 driven by the bending of the cable, so as to enhance the mobility of the cable when bending, improve the adaptability of the cable to the laying space, save laying space, and improve laying efficiency.

[0061] Optionally, see Figures 1 to 3 The distance between two adjacent storage grooves 311 is greater than 2 mm and less than or equal to 2.5 mm; the distance that the capsule shell 41 protrudes from the protective layer skeleton 31 is greater than 2 mm and less than or equal to 2.5 mm.

[0062] It can be understood that the width of rat teeth is about 2 mm. When a rat gnaws a cable, it is difficult for the rat teeth to form a 90° angle with the cable to vertically penetrate the cable. The interval between any two adjacent protective capsules 40 can be controlled within 2.5 mm, so that the rat cannot directly bite through the protective layer skeleton 31.

[0063] In this way, by making the spacing between two adjacent storage grooves 311 greater than 2mm and less than or equal to 2.5mm, the distance that the capsule shell 41 protrudes from the protective layer skeleton 31 is greater than 2mm and less than 2.5mm, and the interval between any two adjacent protective capsules 40 is less than or equal to 2.5mm, so that rat teeth cannot directly bite the protective layer skeleton 31, but can only touch the protective capsule 40. When the protective capsule 40 is damaged, the rat is driven away by the rat-proof material filled in the protective capsule 40. At the same time, the gaps between multiple protective capsules 40 are conducive to cable bending, improve the mobility of the cable, improve the adaptability of the cable to the laying space, save laying space, and improve laying efficiency.

[0064] In some embodiments, see Figures 1 to 4The protective layer 30 also includes a plurality of capsule integrity detection devices 33, which are arranged at intervals on the protective layer skeleton 31, and the capsule integrity detection devices 33 are used to detect the integrity of the protective capsules 40 in the first area; the first areas of any two capsule integrity detection devices 33 do not overlap, and the first areas of all capsule integrity detection devices 33 can cover all protective capsules 40 on the protective layer skeleton 31.

[0065] It can be understood that the capsule integrity detection device 33 is a component for detecting the integrity of all protective capsules 40 in the first area, and may include, for example, an ultrasonic sensor and a data processing chip, and the data processing chip analyzes the distance from the ultrasonic sensor to each unit on all protective capsules 40 in the first area to determine whether any protective capsule 40 is damaged; it may also include an infrared sensor and a data processing chip, and the data processing chip analyzes the distance from the infrared sensor to each unit on all protective capsules 40 in the first area to determine whether any protective capsule 40 is damaged, but it is not limited thereto. The first area is the detection range of the capsule integrity detection device 33, for example, the first area may be an area covering all protective capsules 40 adjacent to the capsule integrity detection device 33, or may be a circular area formed with the capsule integrity detection device 33 as the axis and the sum of the lengths of three protective capsules 40 as the radius, but it is not limited thereto. The capsule integrity detection device 33 may be powered and data interaction may be achieved by burying wires in the protective layer skeleton 31.

[0066] With such arrangement, by adopting the capsule integrity detection device 33 to detect the integrity of the protective capsule 40 on the cable, it is possible to promptly know whether the protective capsule 40 on the cable is damaged, and then promptly conduct investigation and arrange maintenance work to avoid damaging the protective layer skeleton 31 or deeper layers, thereby reducing the failure rate of the cable, improving the reliability of the cable, and thus ensuring the safety of cable electricity use, effectively extending the normal working time of the cable, and reducing maintenance costs.

[0067] In some embodiments, see Figure 1 and Figure 2 The protective layer 30 also includes a plurality of damage prompting devices 34, which are arranged one by one on the capsule integrity detection device 33, and the corresponding capsule integrity detection device 33 of the damage prompting device 34 is electrically connected. The damage prompting device 34 is used to send a prompt signal when the capsule integrity detection device 33 detects that the protective capsule 40 is incomplete.

[0068] It can be understood that the damage prompt device 34 is a component used to make the damaged protective capsule 40 easy to be found. When the capsule integrity detection device 33 detects that the protective capsule 40 is incomplete, a signal is sent to the damage prompt device 34, and then the damage prompt device 34 sends a prompt message. For example, the damage prompt device 34 can be a flashlight bead, and the prompt message is a flashlight; or the damage prompt device 34 can be a signal generator, and the prompt message is a signal containing corresponding position information sent by the signal generator, and the maintenance personnel can find the damaged position according to the position information. But not limited to this. The damage prompt device 34 can be powered and data exchanged by burying wires in the protective layer skeleton 31.

[0069] In this way, through the damage indication device 34 electrically connected to the capsule integrity detection device 33, when the capsule integrity detection device 33 detects that the protective capsule 40 is incomplete, the damage indication device 34 can send a prompt signal to make the damaged protective capsule 40 easy to be found, thereby reducing the difficulty of maintaining the cable, increasing the response speed of repairing the cable, avoiding further expansion of the damaged area to cause more serious consequences, and improving the efficiency of maintenance work.

[0070] In some embodiments, see Figure 1 and Figure 2 The capsule integrity detection device 33 can distinguish the incomplete protective capsules 40 into damaged capsules and man-made capsules; the protective layer 30 also includes an automatic destruction device 35, which is arranged in the storage slot 311; the automatic destruction device 35 is electrically connected to the capsule integrity detection device 33 that is closest to it; the automatic destruction device 35 is used to destroy the protective capsules 40 in the storage slot 311 after receiving the signal from the capsule integrity detection device 33; wherein the damaged capsule is the protective capsule 40 that is broken due to being bitten by rats, termites or high temperature, and the man-made capsule is the protective capsule 40 that is manually disassembled or improperly installed and falls off; the capsule integrity detection device 33 is used to send a signal to all automatic destruction devices 35 in the first area when a damaged capsule is detected in the first area.

[0071] It can be understood that the damaged capsule is the protective capsule 40 that is damaged by external objects or external forces, such as being bitten by rats and ants or melted by high temperature, and the man-made capsule is the protective capsule 40 that is fallen off or damaged due to maintenance needs or improper installation. The automatic destruction device 35 may include a heating wire arranged in the storage slot 311. When the capsule integrity detection device 33 sends a signal to all automatic destruction devices 35 in the first area, the heating wire starts to heat up until the outer shell of the protective capsule 40 is destroyed; or the automatic destruction device 35 may include a signal receiving device, a fuse, a spring and a spike, by setting one end of the spring on one side of the storage slot 311, connecting one end of the fuse to one side of the storage slot 311, connecting the other end of the spring to the other end of the fuse, and compressing the spring, and setting the spike at the other end of the spring, with the tip of the spike facing the other side of the storage slot 311. The signal receiving device is electrically connected to the fuse and the capsule integrity detection device 33 respectively. When the signal receiving device receives the signal of the capsule integrity detection device 33, the circuit is disconnected to melt the fuse, and then the spring is stretched to make the tip of the spike pierce the capsule, but it is not limited to this.

[0072] With such arrangement, through the automatic destruction device 35, when a protective capsule 40 in a first area is destroyed by foreign objects or external forces, a signal is sent to all automatic destruction devices 35 in the first area through the capsule integrity detection device 33, so that all protective capsules 40 in the same first area are automatically destroyed, releasing the rat and termite proof materials and compressed gas filled inside, forming a rat and termite proof area in a larger area, improving the rat and termite proof effect, so that the cable will not be further damaged, reducing the cost of maintenance and replacement, reducing the time required for cable replacement, and ensuring that the cable can continue to operate reliably.

[0073] Alternatively, in some other embodiments, see Figures 1 to 4The protective capsule 40 also includes a capsule integrity detection device 33, a damage prompting device 34, an automatic destruction device 35 and a data processing component. The capsule integrity detection device 33 is arranged inside the capsule shell 41, and the capsule integrity detection device 33 is used to detect the integrity of the protective capsule 40; the damage prompting device 34 is arranged in the protective capsule 40, and the damage prompting device 34 in the same protective capsule 40 is electrically connected to the capsule integrity detection device 33. The damage prompting device 34 is used to send a damaged capsule position signal and a prompting signal when the capsule integrity detection device 33 detects that the protective capsule 40 is damaged. The data processing component is arranged in the accommodating space 411 of the protective capsule 40; the data processing components of the protective capsules 40 in two adjacent storage slots 311 can perform wireless data interaction; the automatic destruction device 35 is arranged in the accommodating space 411 of the protective capsule 40; the automatic destruction device 35 is electrically connected to the data processing component in the same protective capsule 40; the automatic destruction device 35 is used to destroy the capsule shell 41 of the protective capsule 40 after receiving the signal of the data processing component; wherein the wire is buried in the outer surface of the protective layer skeleton 31; the data processing component of a protective capsule 40 is electrically connected to the data processing components of at least three adjacent protective capsules 40, and when it is detected that the data processing components of the adjacent protective capsules 40 are disconnected, a destruction signal is sent to the two data processing components closest to the disconnected data processing component, and a signal is sent to the automatic destruction device 35 in the same protective capsule 40.

[0074] It can be understood that each protective capsule 40 is provided with a capsule integrity detection device 33, a damage indication device 34, an automatic destruction device 35 and a data processing component. The capsule integrity detection device 33 can adopt an acoustic wave sensor or an infrared sensor, but is not limited thereto. The damage indication device 34 can adopt a buzzer or a flashing light bead, but is not limited thereto. The automatic destruction device 35 can be a compressed air bag electrically connected to the data processing component, and when receiving the automatic destruction signal, the compressed gas is released to burst the protective capsule 40; or a heating wire is used, and when receiving the automatic destruction signal, the heating wire is heated to melt the outer shell of the protective capsule 40, but is not limited thereto. The data processing component can adopt an MCU, a data processing chip, etc., but is not limited thereto.

[0075] In this way, by arranging a capsule integrity detection device 33, a damage prompt device 34, an automatic destruction device 35 and a data processing component in each protective capsule 40, the state of each protective capsule 40 can be detected. When a protective capsule 40 is damaged, the damaged position can be accurately found, and the protective capsules 40 in a circle around the damaged protective capsule 40 can be controlled to be automatically destroyed to form a rat-proof and termite-proof area, thereby strengthening the effect of expelling rats and termites, making the rat-proof and termite-proof areas more targeted, and being suitable for use on cables with higher requirements, so as to achieve more detailed protection and monitoring of the cables, avoid further property losses, and reduce the cost of repair and replacement.

[0076] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A rat-proof and termite-proof mineral insulated flexible fireproof cable, characterized in that: include: Cable core; A transition layer, wherein the transition layer comprises a mineral insulation layer and a fireproof layer, wherein the mineral insulation layer is wrapped around the outer surface of the cable core, and the mineral insulation layer is used to insulate and isolate the cable core from the outside; the fireproof layer is wrapped around the outer surface of the mineral insulation layer, and the fireproof layer is used to prevent the cable core from being ignited; A protective layer, the protective layer is wrapped around the outer surface of the transition layer; as well as A plurality of protective capsules are detachably arranged on the outer surface of the protective layer, wherein the protective capsules are filled with materials having the functions of preventing rats and termites; and the protective capsules are at least partially exposed to the external air.

2. The rat-proof and termite-proof mineral insulated flexible fireproof cable according to claim 1, characterized in that: The protective layer comprises: A protective layer skeleton is wrapped around the outer surface of the transition layer. The outer surface of the protective layer skeleton is provided with a plurality of storage grooves. Each of the protective capsules is detachably arranged in one of the storage grooves.

3. The rat-proof and termite-proof mineral insulated flexible fireproof cable according to claim 2, characterized in that: The protective capsule includes a capsule shell, which is detachably arranged in the storage groove; the outer surface of the capsule shell on the side away from the storage groove is coated with a material with anti-rat and anti-termite effects; the interior of the capsule shell is hollow to form a accommodating space, and the accommodating space is filled with a material with anti-rat and anti-termite effects and compressed gas; the compressed gas is used to make the air pressure in the accommodating space greater than the atmospheric pressure outside the capsule shell.

4. The rat-proof and termite-proof mineral insulated flexible fireproof cable according to claim 3, characterized in that: The protective layer further comprises a plurality of limiting portions, at least one of the limiting portions is arranged on the inner side wall of each of the storage grooves, and the limiting portions are used to detachably clamp the protective capsule in the storage groove.

5. The rat-proof and termite-proof mineral insulated flexible fireproof cable according to claim 3, characterized in that: The compressed gas is a compressed flame-retardant gas; the melting point of the capsule shell is lower than the melting point of the protective layer skeleton.

6. The rat-proof and termite-proof mineral insulated flexible fireproof cable according to claim 3, characterized in that: A plurality of the storage grooves are arranged along the circumferential direction of the protective layer skeleton to form a storage groove group; a plurality of the storage groove groups are arranged side by side along the axial direction of the protective layer skeleton; or any two adjacent storage groove groups are staggered along the axial direction of the protective layer skeleton.

7. The rat-proof and termite-proof mineral insulated flexible fireproof cable according to claim 6, characterized in that: The distance between two adjacent storage grooves is greater than 2 mm and less than or equal to 2.5 mm; the distance that the capsule shell protrudes from the protective layer skeleton is greater than 2 mm and less than or equal to 2.5 mm.

8. The rat-proof and termite-proof mineral insulated flexible fireproof cable according to claim 2, characterized in that: The protective layer further comprises a plurality of capsule integrity detection devices, which are arranged at intervals on the protective layer frame, and the capsule integrity detection devices are used to detect the integrity of the protective capsule in the first area; The first regions of any two capsule integrity detection devices do not overlap, and the first regions of all capsule integrity detection devices can cover all the protective capsules on the protective layer skeleton.

9. The rat-proof and termite-proof mineral insulated flexible fireproof cable according to claim 8, characterized in that: The protective layer also includes a plurality of damage indication devices, which are arranged one by one on the capsule integrity detection device, and the corresponding capsule integrity detection devices of the damage indication devices are electrically connected. The damage indication devices are used to send a prompt signal when the capsule integrity detection device detects that the protective capsule is incomplete.

10. The rat-proof and termite-proof mineral insulated flexible fireproof cable according to claim 8, characterized in that: The capsule integrity detection device can distinguish the incomplete protective capsules into damaged capsules and artificial capsules; The protective layer further comprises an automatic destruction device, which is arranged in the storage slot; the automatic destruction device is electrically connected to the capsule integrity detection device which is closest to the storage slot; the automatic destruction device is used to destroy the protective capsule in the storage slot after receiving a signal from the capsule integrity detection device; Among them, the damaged capsule is the protective capsule that is broken due to being gnawed by rats, termites or high temperature, and the artificial capsule is the protective capsule that is removed manually or falls off due to improper installation; the capsule integrity detection device is used to send a signal to all the automatic destruction devices in the first area when the damaged capsule is detected in the first area.

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