CN110617372A - Sandwich type fatigue crack self-repairing air conditioner rubber pipe - Google Patents
Sandwich type fatigue crack self-repairing air conditioner rubber pipe Download PDFInfo
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- CN110617372A CN110617372A CN201910896157.XA CN201910896157A CN110617372A CN 110617372 A CN110617372 A CN 110617372A CN 201910896157 A CN201910896157 A CN 201910896157A CN 110617372 A CN110617372 A CN 110617372A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a sandwich type fatigue crack self-repairing air-conditioning rubber pipe, which belongs to the rubber pipe field, and can improve the overall strength of the air-conditioning rubber pipe and the times of bending the air-conditioning rubber pipe by arranging an inner core interlayer, thereby prolonging the service life of the air-conditioning rubber pipe, when the air-conditioning rubber pipe is subjected to bending extrusion force, a self-flow mesh pipe of a stressed part can be stressed to be hardened, on one hand, partial extrusion force can be removed in the self-flow semi-liquid hardening process, on the other hand, the self-flow semi-liquid in the self-flow mesh pipe of the stressed part can flow out from a multidirectional micropore and is immersed in an anti-cracking interlayer, thereby enlarging the area of the self-flow semi-liquid, so that the internal strength of the air-conditioning rubber pipe can be increased along with the increase of the bending times, and simultaneously, when the outer rubber layer cracks, an adaptive coating on the surface of the outer rubber layer can generate micro deformation adaptive to crack so as, thereby achieving the effect of self-repairing cracks.
Description
Technical Field
The invention relates to the field of rubber tubes, in particular to a sandwich type fatigue crack self-repairing air conditioner rubber tube.
Background
Hoses are a type of tubular rubber product used to transport gaseous, liquid, slurry or particulate materials. The composite material consists of inner and outer rubber layers and skeleton layer, and the skeleton layer may be cotton fiber, various synthetic fiber, carbon fiber, asbestos, steel wire, etc. The inner and outer rubber layers of the common rubber tube are made of natural rubber, styrene butadiene rubber or butadiene rubber; the oil-resistant rubber tube adopts chloroprene rubber and nitrile rubber; the acid and alkali resistant and high temperature resistant rubber tube is made of ethylene propylene rubber, fluorine rubber or silicon rubber and the like. The hose structure is generally divided into: an inner rubber layer, an outer rubber layer and a framework layer (or called a middle layer). The inner rubber layer directly bears the abrasion and the erosion of the conveying medium; the outer rubber layer protects the inner body of the rubber hose from being damaged and eroded by the external environment; the framework layer is a bearing layer of the rubber pipe and endows the pipe body with strength and rigidity. The working pressure of the hose depends on the material and structure of the carcass.
The materials used by the inner and outer rubber layers of the common rubber tube are as follows: PVC polyvinyl chloride, PUR polyurethane, NR natural rubber, SBR oil extended styrene butadiene rubber, EPDM ethylene propylene diene monomer rubber, NBR acrylonitrile butadiene copolymer/nitrile, CR neoprene/rubber, SI silicone rubber, UPE/XLPE cross-linked polyethylene, UPE ultra high molecular weight polyethylene, and the like. Rubber tubes have been applied to many fields of life and production, and conclude the use operating mode, common pipes include: water pipes, hot water pipes, steam pipes, marine pipes, food and beverage pipes, air pipes, welded pipes, gas pipes, ventilation pipes, material pipes, oil pipes, chemical pipes, high-pressure pipes, and the like.
The air conditioner rubber tube is characterized in that the air conditioner rubber tube is arranged in the air conditioner, the air conditioner rubber tube is in a bent state due to the fact that the inner space of the air conditioner is limited, the bent portion is prone to bending fatigue and cracking, particularly in winter with low temperature, the rubber tube is prone to becoming brittle and cracking is serious, the existing air conditioner tube structure is provided with an inner rubber layer, a framework layer and an outer rubber layer from inside to outside, the framework layers of a plurality of air conditioner rubber tubes are only made of nylon materials, the strength of the air conditioner rubber tubes is high, the bending resistance is poor, and the service life of the air conditioner rubber tube is generally low.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a sandwich type fatigue crack self-repairing air-conditioning rubber tube, which can improve the overall strength of the air-conditioning rubber tube and improve the times of bending the air-conditioning rubber tube by arranging an inner core interlayer, thereby prolonging the service life of the air-conditioning rubber tube, meanwhile, when the air-conditioning rubber tube is subjected to bending extrusion force, a self-flow mesh pipe of a stressed part can be stressed to be hardened, on one hand, partial extrusion force can be removed in the self-flow semi-liquid hardening process, on the other hand, the self-flow semi-liquid in the self-flow mesh pipe of the stressed part can flow out from a multidirectional micropore, the self-flow semi-liquid can be immersed into an anti-cracking interlayer, thereby enlarging the area of the self-flow semi-liquid, so that the internal strength of the air-conditioning rubber tube can be increased along with the increase of the bending times, thereby, meanwhile, when the air conditioner rubber pipe cracks along with the increase of the service time, the adaptive coating on the surface of the outer rubber pipe can deform slightly to fill the cracks, so that the effect of self-repairing the cracks is achieved.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A sandwich type fatigue crack self-repairing air conditioner rubber tube comprises an inner rubber layer, a framework layer and an outer rubber layer, wherein the inner rubber layer, the framework layer and the outer rubber layer are sequentially arranged from inside to outside, the inner rubber layer is fixedly connected with the framework layer, the framework layer is fixedly connected with the outer rubber layer, an inner core interlayer is inlaid in the framework layer and comprises an anti-cracking interlayer, a plurality of uniformly distributed annular cavities are formed in the anti-cracking interlayer, a plurality of uniformly distributed self-flow net pipes are placed in the annular cavities, every two adjacent self-flow net pipes are mutually contacted in the annular cavities, a shaping keel is fixedly connected in the self-flow net pipes and is positioned in the center of the self-flow net pipes, an adaptive coating is arranged on the surface of the outer rubber layer and is formed by coating an elastic coating doped with carbon fibers and can be arranged through the inner core interlayer, the integral strength of the air conditioner rubber pipe is improved, the number of times that the air conditioner rubber pipe can be bent is increased, the service life of the air conditioner rubber pipe is prolonged, meanwhile, when the air conditioner rubber pipe is subjected to bending extrusion force, the self-flow mesh pipe of the stressed part can be stressed to be hardened, on one hand, partial extrusion force can be removed in the self-flow semi-liquid hardening process, on the other hand, the self-flow semi-liquid in the self-flow mesh pipe of the stressed part can flow out from the multidirectional micropores, the self-flow semi-liquid can be immersed into the anti-cracking interlayer, the area of the self-flow semi-liquid is enlarged, the internal strength of the air conditioner rubber pipe can be increased along with the increase of the bending number, and meanwhile, when the outer rubber layer cracks, the adaptive coating on the surface of the outer rubber layer can be subjected to micro deformation adaptive to cracks, and therefore the.
Furthermore, the material of the anti-cracking interlayer is reticulated polyurethane foam, no gap is left between the anti-cracking interlayer and the self-flowing mesh pipe, the reticulated polyurethane foam is light and soft, and is a through porous structure, on one hand, the anti-shock property of the air conditioner rubber pipe when being bent is increased, and the extrusion force of a part when being bent is removed, on the other hand, the porous anti-cracking interlayer can be used as a temporary 'container' of self-flowing semi-liquid flowing out from the self-flowing mesh pipe, so that the area of the self-flowing semi-liquid is increased, when the air conditioner rubber pipe is stressed, the self-flowing mesh pipe and the self-flowing semi-liquid in the anti-cracking interlayer are both stressed and hardened, the hardened self-flowing semi-liquid is matched with the porous structure of the anti-cracking interlayer, so that the strength and the elasticity of the stressed part of the air conditioner rubber pipe are both increased, the anti-bending.
Furthermore, the interval between every two annular cavities is 2-4cm, and the interval between the annular cavities is convenient for cutting out the air conditioner rubber pipe with a proper length in the actual use process, so that the self-flow net pipe in the inner core interlayer is avoided, and the self-flow semi-liquid in the inner core interlayer is not easy to flow out due to the breakage of the self-flow net pipe to cause material waste.
Furthermore, a plurality of pre-breaking grooves are reserved on the surface of the outer rubber layer and are respectively positioned among the annular cavities, the edge of the notch of each pre-breaking groove is polished, the condition that the notch of each pre-breaking groove cracks due to stress concentration can be reduced through polishing, and when the length of the air conditioner rubber pipe is intercepted as required, the air conditioner rubber pipe can be intercepted along the trace of the pre-breaking groove, so that an inner core interlayer can be effectively avoided, and the two sections of intercepted air conditioner rubber pipes can be normally used.
Further, the inner wall of the pre-breaking groove is coated with a colored coating, the color of the colored coating and the color of the surface of the outer rubber layer are mutually complementary colors, for example, when the rubber pipe is white, the color of the colored coating is black, so that the colored coating on the pre-breaking groove and the air conditioner rubber pipe form strong color contrast, and the probability of the position where a worker intercepts the air conditioner rubber pipe is reduced.
Furthermore, the self-flowing pipe network comprises a self-flowing pipe, self-flowing semi-liquid is injected into the self-flowing pipe, the self-flowing semi-liquid is wrapped outside the shaped keel, a plurality of multi-directional micropores are uniformly distributed on the surface of the self-flowing pipe, the multi-directional micropores are nano-scale pores, when the self-flowing pipe network is subjected to bending force, the self-flowing semi-liquid is extruded in the self-flowing pipe network, the self-flowing semi-liquid of the stressed part is stressed to be hardened, so that the bending resistance of the air conditioner rubber pipe is improved, the self-flowing semi-liquid of the unstressed part or the self-flowing semi-liquid of the part with smaller stress can flow out of the multi-directional micropores and enter the anti-cracking interlayer, along with the increase of bending times, the self-flowing semi-liquid in the anti-cracking interlayer is gradually increased, so that when the self-flowing semi-liquid is subjected to bending force again, the surface area of the self-flowing semi, the strength of the product is gradually increased.
Furthermore, the gravity flow pipe and the shaping keel are both made of carbon fiber composite materials, two ends of the gravity flow pipe are in a closed state, the carbon fibers are formed by converting organic fibers through a series of heat treatment, the inorganic high-performance fibers with the carbon content higher than 90 percent are novel materials with excellent mechanical properties, have inherent characteristics of carbon materials, have soft processability of textile fibers, and are novel generation reinforcing fibers, so that the toughness and the strength of the whole gravity flow pipe are enhanced, the normal shape and performance of the gravity flow pipe can be still maintained after the gravity flow pipe is subjected to bending force for many times, and the service life of the air conditioner rubber pipe is prolonged.
Furthermore, the self-flowing semi-liquid is a non-Newtonian fluid material, after the non-Newtonian fluid is stressed, the stress part is accelerated along with the stress speed, the hardness of the non-Newtonian fluid is higher from soft to hard, so that the air-conditioning rubber tube is hardened from soft when being stressed by bending force, and part of bending force is removed, thereby reducing the effect that the air-conditioning rubber tube cracks due to bending.
Furthermore, a plurality of self-flow net pipes positioned in the same annular cavity are woven through carbon fiber woven belts to form an inner interlayer, the carbon fiber woven belts can enable the self-flow net pipes to be dispersed into the integrally formed inner interlayer, and compared with the self-flow net pipes which are dispersed, the stability of the self-flow net pipes is enhanced.
Furthermore, the self-flow net pipes are obliquely distributed in the annular cavity, the plurality of self-flow net pipes form a spiral ring shape, and the spiral ring shape enables part of bending force to be removed along the spiral inclination direction of the self-flow net pipes when the air-conditioning rubber pipe is subjected to bending force, so that the impact resistance of the air-conditioning rubber pipe is enhanced, and the probability of cracks generated by the air-conditioning rubber pipe is greatly reduced compared with that of a common air-conditioning rubber pipe under the condition of the same bending force.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme can improve the overall strength of the air conditioner rubber pipe and the times of bending the air conditioner rubber pipe by arranging the inner core interlayer, thereby prolonging the service life of the air conditioner rubber pipe, when the air conditioner rubber pipe is subjected to bending extrusion force, the self-flowing pipe network of the stressed part is stressed to be hardened, on one hand, part of extrusion force can be removed in the process that the self-flowing semi-liquid is hardened from soft, on the other hand, the self-flowing semi-liquid in the self-flowing pipe network of the stressed part can flow out from the multidirectional micropores, the self-flowing semi-liquid can be immersed into the anti-cracking interlayer, thereby enlarging the area of the self-flowing semi-liquid, leading the air-conditioning rubber pipe to be bent along with the increase of the bending times, the strength of the interior of the outer rubber layer can be increased along with the increase of the strength of the interior of the outer rubber layer, and meanwhile, when the outer rubber layer cracks in a low-temperature environment, the adaptive coating on the surface of the outer rubber layer can be subjected to micro deformation adaptive to the cracks so as to fill the cracks, and therefore the effect of self-repairing the cracks is achieved.
(2) The anti-cracking interlayer is made of netted polyurethane foam, no gap is reserved between the anti-cracking interlayer and the self-flowing mesh pipe, the netted polyurethane foam is light and soft, and meanwhile, the netted polyurethane foam is of a through porous structure, on one hand, the anti-shock property of the air conditioner rubber pipe when the air conditioner rubber pipe is bent is improved, and the extrusion force of partial bending is removed, on the other hand, the porous anti-cracking interlayer can be used as a temporary 'container' of self-flowing semi-liquid flowing out of the self-flowing mesh pipe, so that the area of the self-flowing semi-liquid is increased, when the air conditioner rubber pipe is stressed, the self-flowing mesh pipe and the self-flowing semi-liquid in the anti-cracking interlayer are both stressed to be hardened, the hardened self-flowing semi-liquid is matched with the porous structure of the anti-cracking interlayer, the strength and the elasticity of the stressed part of the air conditioner.
(3) The interval between every two annular cavities is 2-4cm, and the interval between the annular cavities is convenient for cutting out the air conditioner rubber pipe with proper length in the actual use process, so that the self-flow net pipe in the inner core interlayer is avoided, and the self-flow semi-liquid in the inner core interlayer is not easy to flow out due to the breakage of the self-flow net pipe to cause material waste.
(4) The outer rubber layer surface is reserved with a plurality of pre-breaking grooves, the pre-breaking grooves are respectively located among the annular cavities, the notch edge of the pre-breaking groove is polished, the polishing treatment can reduce the condition of cracking of the notch of the pre-breaking groove due to stress concentration, when the length of the air conditioner rubber tube is intercepted as required, the air conditioner rubber tube can be intercepted along the trace of the pre-breaking groove, so that an inner core interlayer can be effectively avoided, and two sections of air conditioner rubber tubes after being intercepted can be normally used.
(5) The inner wall of the pre-breaking groove is coated with a colored coating, the color of the colored coating and the color of the surface of the outer rubber layer are mutually complementary colors, for example, when the rubber pipe is white, the color of the colored coating is black, so that the colored coating on the pre-breaking groove and the air conditioner rubber pipe form strong color contrast, and the probability of the position cutting error of a worker when the air conditioner rubber pipe is cut is reduced.
(6) The self-flowing net pipe comprises a self-flowing pipe, self-flowing semi-liquid is injected into the self-flowing pipe and wraps the outer side of the shaped keel, a plurality of uniformly distributed multi-directional micropores are drilled on the surface of the self-flowing pipe, the multi-directional micropores are nano-scale pores, when the self-flowing mesh pipe is subjected to bending force, the self-flowing semi-liquid is extruded in the self-flowing mesh pipe, the self-flowing semi-liquid at the stressed part is stressed to be hardened, thereby improving the bending resistance of the air conditioner rubber pipe, the gravity flow semi-liquid of the unstressed part or the gravity flow semi-liquid of the less stressed part can flow out of the multidirectional micropores and enter the anti-cracking interlayer, the gravity flow semi-liquid in the anti-cracking interlayer is gradually increased along with the increase of the bending times, so that the surface area of the gravity flow semi-liquid is increased when the air conditioner rubber pipe is subjected to the bending force again, therefore, the range of the forced hardening is enlarged, and the effect that the strength is gradually enhanced along with the increase of the bending times is achieved.
(7) The gravity flow pipe and the shaping keel are both made of carbon fiber composite materials, two ends of the gravity flow pipe are in a closed state, the carbon fibers are formed by converting organic fibers through a series of heat treatment, the inorganic high-performance fibers with the carbon content higher than 90 percent are novel materials with excellent mechanical properties, have inherent characteristics of carbon materials, have soft processability of textile fibers and are new-generation reinforcing fibers, so that the toughness and strength of the whole gravity flow pipe are enhanced, the normal shape and performance of the gravity flow pipe can be still maintained after the gravity flow pipe is subjected to bending force for many times, and the service life of the air conditioner rubber pipe is prolonged.
(8) The self-flowing semi-liquid is a non-Newtonian fluid material, after the non-Newtonian fluid is stressed, the stress part is accelerated along with the stress speed, the hardness of the non-Newtonian fluid is higher along with the hardening from soft, so that the air-conditioning rubber pipe is hardened from soft when being subjected to bending force, part of the bending force is removed, and the effect that the air-conditioning rubber pipe cracks due to bending is reduced.
(9) The gravity flow net pipes in the same annular cavity are woven through the carbon fiber woven belts to form the inner interlayer, the carbon fiber woven belts can enable the gravity flow net pipes to be dispersed into the integrally formed inner interlayer, and compared with the scattered gravity flow net pipes, the stability of the gravity flow net pipes is enhanced.
(10) The self-flow net pipes are obliquely distributed in the annular cavity, the plurality of self-flow net pipes form a spiral ring shape, and the spiral ring shape enables part of bending force to be removed along the spiral inclination direction of the self-flow net pipes when the air-conditioning rubber pipe is subjected to bending force, so that the impact resistance of the air-conditioning rubber pipe is enhanced.
Drawings
FIG. 1 is a schematic structural view in cross section of the present invention;
FIG. 2 is a schematic structural diagram of the front side of the present invention;
FIG. 3 is a schematic structural view of a cross-section of a carcass layer according to the present invention;
FIG. 4 is a schematic view of the structure at A in FIG. 3;
FIG. 5 is a schematic structural diagram of the gravity flow network pipe of the present invention;
FIG. 6 is a schematic structural diagram of the outer adhesive layer portion according to the present invention.
The reference numbers in the figures illustrate:
1 interlayer, 2 self-flowing pipes, 21 multi-directional micropores, 3 self-flowing semi-liquid, 4 outer glue layers, 5 framework layers and 6 inner glue layers.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, a sandwich type fatigue crack self-repairing air conditioner rubber tube comprises an inner rubber layer 6, a framework layer 5 and an outer rubber layer 4, wherein the inner rubber layer 6, the framework layer 5 and the outer rubber layer 4 are sequentially arranged from inside to outside, the inner rubber layer 6 is fixedly connected with the framework layer 5, the framework layer 5 is fixedly connected with the outer rubber layer 4, an adaptive coating is arranged on the surface of the outer rubber layer 4, the adaptive coating is formed by coating an elastic coating doped with carbon fibers, when cracks occur in the outer rubber layer 4, the adaptive coating can deform slightly to adapt to the cracks to fill the cracks, so that the effect of self-repairing the cracks is achieved, meanwhile, the carbon fibers have strong toughness and mechanical properties, the cracks can be effectively inhibited from expanding outwards, the aging and cracking speed of the air conditioner rubber tube is reduced, and the service life of the air conditioner rubber tube is prolonged.
Referring to fig. 2-4, an inner core interlayer is embedded in the framework layer 5, the inner core interlayer includes an anti-crack interlayer 1, the anti-crack interlayer 1 is made of a mesh polyurethane foam, no gap is left between the anti-crack interlayer 1 and the gravity flow mesh pipe, the mesh polyurethane foam is light and soft, and is a through porous structure, so that on one hand, the anti-shock property of the air conditioner rubber pipe when being bent is increased, and the extrusion force when a part of the air conditioner rubber pipe is bent is removed, on the other hand, the porous anti-crack interlayer 1 can be used as a temporary 'container' of gravity flow semi-liquid 3 flowing out of the gravity flow mesh pipe, so that the area of the gravity flow semi-liquid 3 is increased, when the air conditioner rubber pipe is stressed, the gravity flow mesh pipe and the gravity flow semi-liquid 3 in the anti-crack interlayer 1 are both stressed to be hardened, and the hardened gravity flow semi-liquid 3 is matched with the porous structure of the, thereby increasing the bending resistance of the air-conditioning rubber pipe and prolonging the service life of the air-conditioning rubber pipe, wherein a plurality of uniformly distributed annular cavities are dug in the anti-cracking interlayer 1, a plurality of uniformly distributed self-flow net pipes are arranged in the annular cavities, the interval between every two annular cavities is 2-4cm, the interval between the annular cavities is convenient for cutting the air-conditioning rubber pipe with proper length in the actual use process, thereby avoiding the self-flow net pipes in the inner core interlayer, ensuring that the self-flow semi-liquid 3 in the air-conditioning rubber pipe is not easy to flow out due to the breakage of the self-flow net pipes to cause the waste of materials, every two adjacent self-flow net pipes are mutually contacted in the annular cavities, the self-flow net pipes are obliquely distributed in the annular cavities, the plurality of self-flow net pipes form a spiral ring shape, when the air-conditioning rubber pipe is subjected to bending force, part of the bending force can be discharged along the spiral inclination, therefore, the impact resistance of the air conditioner rubber pipe is enhanced, under the condition of receiving the same bending force, compared with a common air conditioner rubber pipe, the probability of cracks generated by the air conditioner rubber pipe can be greatly reduced, a plurality of gravity flow net pipes positioned in the same annular cavity are woven through carbon fiber woven belts to form an inner interlayer, the carbon fiber woven belts can enable the gravity flow net pipes to be dispersed into the integrally formed inner interlayer, compared with the scattered gravity flow net pipes, the stability of the air conditioner rubber pipe is enhanced, when the air conditioner rubber pipe is bent, the gravity flow net pipes are difficult to move in the annular cavity, and the stability of the air conditioner rubber pipe under stress is improved.
Referring to fig. 5, a shaping keel is fixedly connected inside the gravity flow mesh pipe, the shaping keel is located at the center of the gravity flow mesh pipe, the gravity flow mesh pipe comprises a gravity flow pipe 2, a gravity flow semi-liquid 3 is injected into the gravity flow pipe 2, the gravity flow semi-liquid 3 is wrapped outside the shaping keel, a plurality of multi-directional micropores 21 are uniformly distributed on the surface of the gravity flow pipe 2, the multi-directional micropores 21 are nano-scale pores, when the gravity flow mesh pipe is subjected to a bending force, the gravity flow semi-liquid 3 is extruded in the gravity flow mesh pipe, the gravity flow semi-liquid 3 at a stressed part is hardened under the stress, so that the bending resistance of the air conditioner rubber pipe is improved, the gravity flow semi-liquid 3 at an unstressed part or the gravity flow semi-liquid 3 at a less stressed part flows out from the multi-directional micropores 21 and enters the anti-cracking interlayer 1, and as the bending times increase, the gravity flow semi-liquid 3 in the anti-cracking interlayer 1 gradually increases, the surface area of the self-flowing semi-liquid 3 is enlarged, the range of forced hardening is enlarged, the effect that the strength is gradually enhanced along with the increase of the bending times is achieved, the self-flowing semi-liquid 3 is made of a non-Newtonian fluid material, the stressed part of the non-Newtonian fluid is accelerated along with the stress speed after being stressed, the hardness from soft hardening is higher, the air-conditioning rubber tube is made of a carbon fiber composite material from soft hardening to remove part of bending force when being subjected to bending force, so that the effect that the air-conditioning rubber tube is cracked due to bending is reduced, the self-flowing tube 2 and the shaped keel are both made of the carbon fiber composite material, the two ends of the self-flowing tube 2 are in a closed state, the carbon fiber is formed by converting organic fiber through a series of heat treatment, and inorganic high-performance fiber with the carbon content higher than 90 percent is a new material with excellent mechanical property, has the inherent characteristic of a carbon material, and has the soft, the self-flow pipe is a new generation of reinforced fiber, so that the toughness and strength of the whole self-flow pipe 2 are enhanced, the normal shape and performance of the self-flow pipe can be still maintained after the self-flow pipe is subjected to bending force for many times, and the service life of the air conditioner rubber pipe is prolonged.
Referring to fig. 6, a plurality of pre-breaking grooves are reserved on the surface of the outer rubber layer 4, the pre-breaking grooves are respectively located between the annular cavities, the edge of the notch of each pre-breaking groove is polished, the condition of cracking of the notch of each pre-breaking groove due to stress concentration can be reduced, when the length of the air conditioner rubber pipe is cut as required, the air conditioner rubber pipe can be cut along the trace of each pre-breaking groove, so that an inner core interlayer can be effectively avoided, the two sections of the air conditioner rubber pipe after being cut can be normally used, a colored coating is coated on the inner wall of each pre-breaking groove, the color of the colored coating and the color of the surface of the outer rubber layer are mutually complementary, for example, when the rubber pipe is white, the color of the colored coating is black, so that the colored coating on the pre-breaking grooves and the air conditioner rubber pipe form strong color contrast, and the probability of the cutting.
The arrangement of the inner core interlayer can improve the overall strength of the air conditioner rubber pipe and the times of bending the air conditioner rubber pipe, thereby prolonging the service life of the air conditioner rubber pipe, when the air-conditioning rubber pipe is subjected to bending extrusion force, the self-flowing pipe network of the stressed part is stressed to be hardened, on one hand, part of extrusion force can be removed in the process that the self-flowing semi-liquid 3 is hardened by softness, on the other hand, the self-flowing semi-liquid 3 in the self-flowing pipe network of the stressed part flows out from the multidirectional micropores 21, the self-flowing semi-liquid 3 is immersed into the anti-cracking interlayer 1, thereby enlarging the area of the self-flowing semi-liquid 3, leading the air-conditioning rubber pipe to be bent along with the increase of the bending times, the internal strength of the outer adhesive layer can be increased along with the internal strength of the outer adhesive layer, and meanwhile, when the outer adhesive layer cracks in a low-temperature environment, the adaptive coating on the surface of the outer adhesive layer 4 can be subjected to micro deformation adaptive to the cracks so as to fill the cracks, and therefore the effect of self-repairing the cracks is achieved.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a sandwich type fatigue crack selfreparing air conditioner rubber tube, includes interior glue film (6), casing ply (5) and outer glue film (4), its characterized in that: the anti-cracking and anti-cracking composite material is characterized in that the inner rubber layer (6), the framework layer (5) and the outer rubber layer (4) are sequentially arranged from inside to outside, the inner rubber layer (6) is fixedly connected with the framework layer (5), the framework layer (5) is fixedly connected with the outer rubber layer (4), an inner core interlayer is inlaid in the framework layer (5), the inner core interlayer comprises an anti-cracking interlayer (1), a plurality of uniformly distributed annular cavities are formed in the anti-cracking interlayer (1), a plurality of uniformly distributed self-flow net pipes are placed in the annular cavities, every two adjacent self-flow net pipes are in mutual contact in the annular cavities, a shaping keel is fixedly connected in the self-flow net pipes, the shaping keel is located at the center of the self-flow net pipes, an adaptive coating is arranged on the surface of the outer rubber layer (4), and the adaptive coating is formed by coating an elastic coating doped with carbon fibers.
2. The sandwich type fatigue crack self-repairing air conditioner rubber pipe of claim 1, characterized in that: the anti-cracking interlayer (1) is made of reticular polyurethane foam, and no gap is left between the anti-cracking interlayer (1) and the self-flowing net pipe.
3. The sandwich type fatigue crack self-repairing air conditioner rubber pipe of claim 1, characterized in that: the interval between every two annular cavities is 2-4 cm.
4. The sandwich type fatigue crack self-repairing air conditioner rubber pipe of claim 1, characterized in that: and a plurality of pre-breaking grooves are reserved on the surface of the outer adhesive layer (4), the pre-breaking grooves are respectively positioned among the annular cavities, and the edge of the notch of each pre-breaking groove is subjected to polishing treatment.
5. The sandwich type fatigue crack self-repairing air conditioner rubber pipe of claim 1, characterized in that: the inner wall of the pre-breaking groove is coated with a colored coating, and the color of the colored coating and the color of the surface of the outer adhesive layer are mutually complementary colors.
6. The sandwich type fatigue crack self-repairing air conditioner rubber pipe of claim 1, characterized in that: the gravity flow net pipe comprises a gravity flow pipe (2), the gravity flow semi-liquid (3) is injected into the gravity flow pipe (2), the gravity flow semi-liquid (3) is wrapped on the outer side of the shaping keel, a plurality of uniformly distributed multidirectional micropores (21) are drilled on the surface of the gravity flow pipe (2), and the multidirectional micropores (21) are nano-scale pores.
7. The sandwich type fatigue crack self-repairing air conditioner rubber pipe of claim 1, characterized in that: the gravity flow pipe (2) and the shaping keel are both made of carbon fiber composite materials, and two ends of the gravity flow pipe (2) are in a closed state.
8. The sandwich type fatigue crack self-repairing air conditioner rubber pipe of claim 1, characterized in that: the self-flowing semi-liquid (3) is a non-Newtonian fluid material.
9. The sandwich type fatigue crack self-repairing air conditioner rubber pipe of claim 1, characterized in that: and the plurality of self-flow net pipes positioned in the same annular cavity are woven by carbon fiber woven belts to form an inner interlayer.
10. The sandwich type fatigue crack self-repairing air conditioner rubber pipe of claim 1, characterized in that: the self-flow net pipes are distributed in the annular cavity in an inclined mode, and a plurality of self-flow net pipes form a spiral annular shape.
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| CN201910896157.XA CN110617372B (en) | 2019-09-22 | 2019-09-22 | Sandwich type fatigue crack self-repairing air conditioner rubber pipe |
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| CN201910896157.XA CN110617372B (en) | 2019-09-22 | 2019-09-22 | Sandwich type fatigue crack self-repairing air conditioner rubber pipe |
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| CN110617372A true CN110617372A (en) | 2019-12-27 |
| CN110617372B CN110617372B (en) | 2021-04-16 |
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| CN201910896157.XA Active CN110617372B (en) | 2019-09-22 | 2019-09-22 | Sandwich type fatigue crack self-repairing air conditioner rubber pipe |
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| CN112013201A (en) * | 2020-09-08 | 2020-12-01 | 孙永林 | Self-checking self-repairing type leakage-proof petroleum pipeline |
| CN112186665A (en) * | 2020-09-08 | 2021-01-05 | 彭新林 | Gas-touch self-condensation-repairing electric corrugated pipe |
| CN112644098A (en) * | 2020-12-05 | 2021-04-13 | 孟玲玉 | Production method of textile with protective layer |
| CN113335713A (en) * | 2021-06-18 | 2021-09-03 | 佛山市腾华自动化机械有限公司 | Material frame and fold material frame device |
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| CN110617372B (en) | 2021-04-16 |
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Effective date of registration: 20210329 Address after: 322000 No. 416 Xiangshan Road, Houjiang street, Yiwu City, Jinhua City, Zhejiang Province Applicant after: Zhejiang wumeikai Liquor Co.,Ltd. Address before: 311251 No.27, group 12, tonger village, Linpu Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: Liu Weihong |
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