阅读说明：本技术 一种高强度安全防鼠蚁电缆 (High-strength safe rat and termite prevention cable ) 是由 黄怡嘉 林志豪 林志伟 于 2021-07-20 设计创作，主要内容包括：本发明公开了一种高强度安全防鼠蚁电缆,包括电缆本体和截面为梭子形状的保护套,所述电缆本体设于保护套中心的电缆孔道内,保护套内填充有驱鼠蚁颗粒；所述电缆本体由内向外依次设有电缆芯层,绝缘层,隔热层,隔水层和第一金属网层；所述保护套由内向外依次设有金属层,第二金属网层和可拆卸的耐磨层,在第二金属网层和耐磨层之间填充有驱鼠蚁颗粒。本发明采用物理机械法和化学防治法相结合的方法防治电缆的鼠蚁危害,减少防治鼠蚁的成本。多层金属材质的包裹层既起到支撑保护作用,也能阻止鼠蚁啃噬破坏电缆本体。驱鼠蚁颗粒的驱鼠蚁效果优异且持续时间长,减少电缆破坏,延长其使用寿命,提高电缆的使用安全性。(The invention discloses a high-strength safe rat and termite resistant cable which comprises a cable body and a protective sleeve with a shuttle-shaped section, wherein the cable body is arranged in a cable pore passage in the center of the protective sleeve, and rat and termite repelling particles are filled in the protective sleeve; the cable body is sequentially provided with a cable core layer, an insulating layer, a heat insulating layer, a water-resisting layer and a first metal net layer from inside to outside; the protective sheath is equipped with the metal level from inside to outside in proper order, second metal mesh layer and detachable wearing layer, and it has rat/ant repelling granule to fill between second metal mesh layer and wearing layer. The invention adopts a method of combining a physical mechanical method and a chemical prevention method to prevent and control the damage of rats and ants of the cable, and reduces the cost of preventing and controlling the rats and the ants. The wrapping layer of multilayer metal material both plays the support guard action, also can prevent that mouse ant from gnawing and destroy the cable body. The rat and ant repelling effect of the rat and ant repelling particles is excellent and long in duration, damage to the cable is reduced, the service life of the cable is prolonged, and the use safety of the cable is improved.)

1. A high-strength safe rat-proof and termite-proof cable comprises a cable body and a protective sleeve with a shuttle-shaped section, and is characterized in that the cable body is arranged in a cable pore passage in the center of the protective sleeve, and rat-proof and termite-proof particles are filled in the space inside the protective sleeve except the cable pore passage;

the cable body is sequentially provided with a cable core layer, an insulating layer, a heat insulating layer, a water-resisting layer and a first metal net layer from inside to outside;

the protective sleeve is sequentially provided with a metal layer, a second metal mesh layer and a detachable wear-resistant layer from inside to outside, and rat and ant repelling particles are filled between the second metal mesh layer and the wear-resistant layer;

the rat/ant repelling particles are hollow silica submicron spheres absorbed with rat/ant repelling liquid.

2. The high strength, safe rat and ant protected cable of claim 1 wherein the insulating layer is a low density polyethylene layer.

3. The high strength, safe rat and ant protected cable of claim 1 wherein the insulation layer is a fiberglass layer.

4. The high-strength safe rat and ant prevention cable according to claim 1, wherein the wear-resistant layer is made of polyurethane.

5. The high-strength safe rat and ant prevention cable according to claim 1, wherein the rat and ant repelling particles are prepared by the following method: mixing capsaicin extract and azadirachtin extract according to a volume ratio of 1-10:1-10 to obtain rat and ant repelling liquid, soaking the hollow silica submicron spheres in the rat and ant repelling liquid for 2-24h, taking out the hollow silica submicron spheres, and naturally drying the surfaces of the hollow silica submicron spheres to obtain the rat and ant repelling liquid.

6. The high-strength safe rat and ant prevention cable according to claim 5, wherein the capsaicin extract and the azadirachtin extract are extracts with a purity of 40-80% after ethanol extraction.

7. The high-strength safe rat and ant prevention cable as claimed in claim 1 or 5, wherein the diameter of the hollow silica submicron sphere is 400-600nm, the thickness of the shell layer is 30-50nm, and the specific surface area is 120-150m²The shell layer has a mesoporous structure, and the average pore diameter of mesopores is 2.5-5.0 nm.

8. The high-strength safe rat and ant prevention cable according to claim 1, wherein a plurality of partition plates are arranged inside the protective sleeve to divide the space except the cable duct into a plurality of small spaces, and rat and ant repelling particles are filled in each small space.

9. The high-strength safe rat and ant prevention cable according to claim 1, wherein the surface of the wear-resistant layer is provided with a guide texture with a fold line shape or a curve shape, the surface of the guide texture is rough, and the rest surfaces of the wear-resistant layer are smooth.

10. The high-strength safe rat and ant prevention cable according to claim 9, wherein a plurality of air holes with a diameter smaller than that of rat and ant repelling particles are arranged on the wear-resistant layer, and are distributed beside the guide lines.

Technical Field

The invention relates to the technical field of cables, in particular to a high-strength safe rat and termite resistant cable.

Background

With the continuous development of the construction of electric power, high-speed railways, urban rail transit, industrial and mining enterprises, urbanization and the like in China, the use of power cables is more and more popular, the possibility that the cables are damaged by termites and mice is correspondingly increased, the bite of the termites and the mice on the protective sleeves can cause moisture or humidity to be soaked into the cables along the longitudinal or radial gaps of the cables, the insulation is aged due to water trees, the insulation breakdown of the cables can be caused in a short time, accidents such as power failure, serious short circuit, fire disasters and the like are caused, and the immeasurable loss is caused. Therefore, more and more users put forward the requirements of water resistance and rat and ant resistance to the cable, and the traditional cable cannot completely meet the use requirements of water resistance and rat and ant resistance.

The existing rat and ant prevention method for the cable mainly comprises a physical protection method and a chemical protection method. The physical protection achieves the effect of preventing rats and ants by improving the hardness, toughness and surface smoothness of the material, but the material is expensive in actual production, high in production cost and less in application in actual production.

The chemical protection method adopts an aversion agent. Repellents that repel termites and rodents can be divided into termite repellents and rodenticides. The commonly used ant-preventing agent includes dieldrin, aldrin, lindane, chlordane, heptachlor, etc. The rat repelling agent has cycloheximide (also called cycloheximide), monomer similar to withered compound, boron compound, metal salt of aryl phosphate vinegar, etc. Many repellents are prohibited to be used due to toxicity or environmental pollution, and in the past, as a main measure for preventing the damage of rat and creatures, rat poison which is mainly used for poisoning is added into a plastic covering material of a cable sheath, but the release of toxic gas in the production process not only harms the health of workers, but also causes environmental pollution, and pollutes water, soil and space environment during use.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a high-strength safe rat and ant prevention cable.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the high-strength safe rat and ant repelling cable comprises a cable body and a protective sleeve with a shuttle-shaped section, wherein the cable body is arranged in a cable pore passage in the center of the protective sleeve, and rat and ant repelling particles are filled in the space inside the protective sleeve except the cable pore passage;

the cable body is sequentially provided with a cable core layer, an insulating layer, a heat insulating layer, a water-resisting layer and a first metal net layer from inside to outside;

the protective sleeve is sequentially provided with a metal layer, a second metal mesh layer and a detachable wear-resistant layer from inside to outside, and rat and ant repelling particles are filled between the second metal mesh layer and the wear-resistant layer;

the rat/ant repelling particles are hollow silica submicron spheres absorbed with rat/ant repelling liquid.

Preferably, the insulating layer is a low density polyethylene layer.

Preferably, the thermal insulation layer is a glass fiber layer.

Preferably, the material of the wear-resistant layer is polyurethane.

Preferably, the preparation method of the rat/ant repellent particle is as follows: mixing capsaicin extract and azadirachtin extract according to a volume ratio of 1-10:1-10 to obtain rat and ant repelling liquid, soaking the hollow silica submicron spheres in the rat and ant repelling liquid for 2-24h, taking out the hollow silica submicron spheres, and naturally drying the surfaces of the hollow silica submicron spheres to obtain the rat and ant repelling liquid.

Preferably, the capsaicin extracting solution and the azadirachtin extracting solution are extracting solutions with the purity of 40-80% after ethanol extraction.

Preferably, the diameter of the hollow silica submicron sphere is 400-600nm, the shell thickness is 30-50nm, and the specific surface area is 120-150m²The shell layer has a mesoporous structure, and the average pore diameter of mesopores is 2.5-5.0 nm.

Preferably, a plurality of partition plates are arranged inside the protective sleeve to divide the space except the cable duct into a plurality of small spaces, and rat and ant repelling particles are filled in each small space.

Preferably, the surface of the wear-resistant layer is provided with a guide texture with a fold line shape or a curve shape, the surface of the guide texture is arranged in a rough manner, and the rest surfaces of the wear-resistant layer are arranged in a smooth manner.

Preferably, the guide lines are provided along both sides and/or both ends of the wear layer.

Preferably, the wear-resistant layer is provided with a plurality of air holes with the diameter smaller than the diameter of rat/ant repelling particles, and the plurality of air holes are distributed along the guide lines.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

1. according to the invention, the metal mesh layer is arranged on the cable body, so that the cable has higher hardness and can play a role in supporting and protecting the cable core layer. The insulating layer, the insulating layer and the water-resisting layer form a plurality of waterproof, moistureproof and heat-proof layers from inside to outside, and the multilayer protection is arranged to ensure the service performance and the service life of the underground cable, specially aim at the problem that the underground cable is under the ground for a long time and is easily short-circuited due to the invasion of moisture and humidity.

The cable is also provided with the protective sleeve outside the cable body, and the metal layer and the metal net layer of the protective sleeve can form a reinforcing layer, so that the deformation resistance of the cable is enhanced, the overall strength of the cable is further improved, the damage rate of the buried cable is greatly reduced, and the service life of the cable is prolonged.

2. The rat and ant repelling liquid is extracted from natural plants, and hollow silica submicron spheres are used as carriers to store the rat and ant repelling liquid. The submicron spheres take hollow silicon dioxide as a core, have lower density and higher strength than solid cores, and can bear higher pressure. Its hollow structure is convenient for adsorb and stores rat/ant repelling liquid, and when the humidity of external environment and rat/ant repelling liquid concentration were lower, the rat/ant repelling liquid in the submicron ball volatilized, gave out pungent odor, once the rat/ant smelled, made its olfactory nerve receive the stimulation and abandoned the contact, dodged its wire and cable automatically, played the purpose of protection cable of protection against rodents, ant prevention.

Compared with the existing chemical protection method, although the traditional highly toxic medicine can poison the rats and ants which damage the cables, the toxic time of the medicine is short, the cables are damaged, and the environment is polluted when the cable is used. The rat and ant repelling particle can slowly release nontoxic spicy substances to repel rats and ants, is nontoxic and harmless, does not pollute the environment, and has long duration.

In addition, the invention has the function of preventing and controlling the colony effect of rats and ants: because the mouse and ant animal has stronger information transmission function, if the mouse and ant contact the product, the product can transmit information which can not be contacted by the product to the group, so that the whole group receiving the information can not bite and erode the cable, and the purpose that the cable is not damaged by the mouse and ant can be realized.

3. The surface of the wear-resistant layer on the outermost layer of the protective sleeve is smooth, the surface of a place provided with guide lines is rough, the protective sleeve is in a shuttle shape, rats and ants cannot walk for a long time in the middle position of the surface of the protective sleeve, but the two sides of the protective sleeve, namely the tip positions of the two sides of the shuttle, are selected to start biting. Even if a certain area of the protective sleeve is bitten by rats and ants, the pungent odor of rat and ant repelling particles between the wear-resistant layer and the metal net layer is aggravated, and the pungent odor emitted from the area which is not bitten can be transmitted to the bitten area, so that the repelling effect is enhanced. Moreover, the rat and ant repelling particles filled in the protective sleeve play a standby repelling role, and the cable core layer is prevented from being contacted by rats and ants.

Therefore, the method combines a physical mechanical method and a chemical prevention method to prevent and control the damage of rats and ants of the cable, and reduces the cost of preventing and controlling the rats and the ants. The wrapping layer of multilayer metal material both plays the support guard action, also can prevent that mouse ant from gnawing and destroy the cable body. The rat and ant repelling effect of the rat and ant repelling particles is excellent and long in duration, damage to the cable is reduced, the service life of the cable is prolonged, and the use safety of the cable is improved.

Drawings

Fig. 1 is a schematic view of the cross-sectional structure of the present invention (omitting rat/ant repelling particles in the protective cover).

Figure 2 is a schematic view of a protective cover of the present invention.

In the attached figure, 1-a cable body, 2-a protective sleeve, 3-a cable pore channel, 4-rat and ant repelling particles, 5-a cable core layer, 6-an insulating layer, 7-a heat insulating layer, 8-a water resisting layer, 9-a first metal mesh layer, 10-a metal layer, 11-a second metal mesh layer, 12-a wear-resisting layer, 13-a separation plate, 14-guide lines and 15-air holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to preferred embodiments. It should be noted, however, that the numerous details set forth in the description are merely for the purpose of providing the reader with a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.

Example 1

The utility model provides a high strength safety protection against rodents ant cable, includes that cable body 1 and cross-section are shuttle shape's protective sheath 2, in cable pore 3 at protective sheath 2 center was located to cable body 1, protective sheath 2 inside except that the space of cable pore 3 is filled with and drives rat ant granule 4.

The cable body 1 is provided with a cable core layer 5, an insulating layer 6, a heat insulating layer 7, a water-resisting layer 8 and a first metal mesh layer 9 from inside to outside in sequence. The insulating layer 6 is a low-density polyethylene layer, the heat insulating layer 7 is a glass fiber layer, and the water-resisting layer 8 and the first metal mesh layer 9 are made of materials with corresponding application in the prior art.

Protective sheath 2 is equipped with metal level 10 from inside to outside in proper order, second metal mesh layer 11 and detachable wearing layer 12, and this wearing layer 12's material is polyurethane, and it has rat repelling ant granule 4 to fill between second metal mesh layer 11 and wearing layer 12. The protective sleeve 2 is internally provided with a plurality of partition plates 13 which divide the space except the cable duct 3 into a plurality of small spaces, and rat and ant repelling particles 4 are filled in each small space. The surface both sides of wearing layer 12 are equipped with the guide line 14 of broken line shape, and this guide line 14 surface is crude to be set up, and the remaining surface of wearing layer 12 is smooth setting, still is equipped with a plurality of diameters and is less than the bleeder vent 15 of rat/ant repelling particle 4 diameters on wearing layer 12, a plurality of bleeder vents 15 are along the other distribution of guide line 14.

The preparation method of the rat/ant repelling particle 4 comprises the following steps:

extracting capsaicin and azadirachtin by ethanol respectively by using a conventional alcohol extraction method, removing impurities, concentrating to obtain a capsaicin extracting solution and an azadirachtin extracting solution with capsaicin purity of 75%, and mixing the two extracting solutions in equal volume to obtain the rat and ant repelling solution. Soaking the hollow silica submicron spheres in the rat and ant repelling liquid for 2-24h, taking out the hollow silica submicron spheres, and naturally drying the surfaces of the hollow silica submicron spheres to obtain the rat and ant repelling liquid.

The diameter of the hollow silica submicron sphere adopted in the embodiment is 400-600nm, the shell thickness is 30-50nm, and the specific surface area is 120-150m²The shell layer has a mesoporous structure, and the average pore diameter of mesopores is 2.5-5.0 nm. Because the hollow silica submicron spheres are used for storing, adsorbing and repelling the rat and ant liquid, the hollow silica submicron spheres have no unique specified requirements on the diameter, the thickness of a shell layer, the specific surface area and the aperture of a mesoporous, and can be used within the numerical range.

When the mouse and ant repelling device is used, the mouse and ant repelling particles 4 are filled into the space except the cable duct 3 in the protective sleeve 2, and after the filling degree reaches 50% or more, the two ends of the protective sleeve 2 are sealed (the cable duct 3 is not sealed). A thin adhesive layer is coated on the metal layer 10 and the second metal net layer 11, rat and ant repelling particles 4 are laid in meshes of the second metal net layer 11, then the wear-resistant layer 4 is sleeved outside the second metal net layer 11 (the adhesive is not in contact with the inner wall of the wear-resistant layer 12), and then the whole protective sleeve 2 is sleeved outside the cable body 1.

Insulating layer 6, insulating layer 7, water barrier 8 play insulating, thermal-insulated, water proof effect respectively, prevent that the cable core from being influenced working property by external moisture, temperature etc.. The first metal mesh layer 9 plays a role of supporting the cable body 1 and preventing the cable core layer 5 from being extruded and deformed.

The second metal mesh layer 11 and the metal layer 10 enhance the deformation resistance of the protective sleeve 2, prevent the cable body 1 from being extruded and deformed, and improve the strength of the cable. The wear-resistant layer 12 is made of polyurethane and has good insulating and waterproof properties.

The rat and ant repelling particles 4 are filled in the protective sleeve 2 and between the wear-resistant layer 12 and the second metal net layer 11, spicy peculiar smell substances are stored in the particles and can be slowly and continuously released, when rats and ants contact the cable, olfactory nerves of the rats and the ants are stimulated to be in contact with the cable, the cables are automatically avoided, and the purposes of rat prevention, ant prevention and cable protection are achieved.

The surface of the wear-resistant layer 12 is smooth, the surface of the place provided with the guide lines 14 is rough, the protective sleeve 2 is in a shuttle shape, rats and ants are difficult to walk for a long time in the middle position of the surface of the protective sleeve 2, the two sides of the protective sleeve 2, namely the tip positions of the two sides of the shuttle, are selected to start biting, the guide lines 14 (the width of the guide lines 14 is 5-20mm) are also arranged near the tip position, the rough surface can guide the rats and ants moving on the cable to gather along the lines, the air holes 15 are arranged near the guide lines 14, pungent odor can be diffused from the air holes 15, and the rats and ants are stimulated to escape. Even if a certain area of the protective cover 2 is bitten by rat and ant, the pungent odor of rat and ant repelling particles 4 between the abrasion-resistant layer 12 and the second metal mesh layer 11 is increased, and the pungent odor emitted from the area which is not bitten can be transmitted to the bitten area to play a repelling role. Moreover, the rat and ant repelling particles 4 filled in the protective sleeve 2 play a standby repelling role, and the cable core layer 5 is ensured not to be contacted by rats and ants.