CN112280186A - Protective layer cushion block for concrete pole and preparation method thereof - Google Patents
Protective layer cushion block for concrete pole and preparation method thereof Download PDFInfo
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- CN112280186A CN112280186A CN202011251749.5A CN202011251749A CN112280186A CN 112280186 A CN112280186 A CN 112280186A CN 202011251749 A CN202011251749 A CN 202011251749A CN 112280186 A CN112280186 A CN 112280186A
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- mica powder
- concrete pole
- cushion block
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- 239000011241 protective layer Substances 0.000 title claims abstract description 71
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 74
- 239000010445 mica Substances 0.000 claims abstract description 52
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 52
- 239000000843 powder Substances 0.000 claims abstract description 52
- -1 2-acryloyloxyethyl Chemical group 0.000 claims abstract description 47
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 44
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 42
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000002244 precipitate Substances 0.000 claims abstract description 33
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 32
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000004743 Polypropylene Substances 0.000 claims abstract description 28
- 229920001155 polypropylene Polymers 0.000 claims abstract description 28
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002270 dispersing agent Substances 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 22
- 238000001035 drying Methods 0.000 claims abstract description 21
- 239000000243 solution Substances 0.000 claims abstract description 15
- 239000013638 trimer Substances 0.000 claims abstract description 15
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims abstract description 14
- QUUCYKKMFLJLFS-UHFFFAOYSA-N Dehydroabietan Natural products CC1(C)CCCC2(C)C3=CC=C(C(C)C)C=C3CCC21 QUUCYKKMFLJLFS-UHFFFAOYSA-N 0.000 claims abstract description 14
- NFWKVWVWBFBAOV-UHFFFAOYSA-N Dehydroabietic acid Natural products OC(=O)C1(C)CCCC2(C)C3=CC=C(C(C)C)C=C3CCC21 NFWKVWVWBFBAOV-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 14
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 14
- 239000007864 aqueous solution Substances 0.000 claims abstract description 14
- NFWKVWVWBFBAOV-MISYRCLQSA-N dehydroabietic acid Chemical compound OC(=O)[C@]1(C)CCC[C@]2(C)C3=CC=C(C(C)C)C=C3CC[C@H]21 NFWKVWVWBFBAOV-MISYRCLQSA-N 0.000 claims abstract description 14
- 229940118781 dehydroabietic acid Drugs 0.000 claims abstract description 14
- 150000002148 esters Chemical class 0.000 claims abstract description 14
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 14
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 14
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 14
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims abstract description 13
- 229920001577 copolymer Polymers 0.000 claims abstract description 12
- 238000001746 injection moulding Methods 0.000 claims abstract description 12
- 238000009775 high-speed stirring Methods 0.000 claims abstract description 11
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims abstract description 11
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims abstract description 11
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims abstract description 11
- 239000006228 supernatant Substances 0.000 claims abstract description 10
- 238000005406 washing Methods 0.000 claims abstract description 10
- 238000003780 insertion Methods 0.000 claims description 27
- 230000037431 insertion Effects 0.000 claims description 27
- 238000003825 pressing Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 11
- 230000001376 precipitating effect Effects 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims 3
- 239000011324 bead Substances 0.000 description 17
- 229920003023 plastic Polymers 0.000 description 10
- 239000004033 plastic Substances 0.000 description 10
- 210000003205 muscle Anatomy 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000004566 building material Substances 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000004005 microsphere Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012674 dispersion polymerization Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229940113115 polyethylene glycol 200 Drugs 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
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- 239000002023 wood Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/563—Gaskets
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/12—Structures made of specified materials of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a protective layer cushion block for a concrete pole. The invention discloses a preparation method of the protective layer cushion block for the concrete pole, which comprises the following steps: stirring gamma-aminopropyl-trimethoxy silane, nano mica powder and an ethanol solution to obtain pretreated nano mica powder; uniformly mixing aniline trimer, stannous octoate and toluene, adding caprolactone under the protection of nitrogen, stirring, drying, adding an isopropanol aqueous solution into the precipitate, adding nano graphene, dehydroabietic acid (2-acryloyloxyethyl) ester, polyvinyl pyrrolidone and azodiisobutyronitrile under a high-speed stirring state, stirring under the protection of nitrogen, centrifuging, removing supernatant, washing the precipitate, and drying to obtain a prefabricated dispersing agent; stirring polypropylene, ethylene-octene copolymer and polypropylene grafted maleic anhydride, adding the pretreated nano mica powder, the preformed dispersant, the antioxidant and zinc stearate, continuing stirring, and performing injection molding to obtain the protective layer cushion block for the concrete pole.
Description
Technical Field
The invention relates to the technical field of concrete poles, in particular to a protective layer cushion block for a concrete pole and a preparation method thereof.
Background
The electric pole protective layer cushion block is a product specially used for protecting the electric pole main reinforcement in effective thickness, and is a part for supporting an electric pole framework and is sensitive to weather resistance and bearing capacity, so that researches on aspects of structural types, structural styles, construction materials and the like are not stopped at home and abroad.
The plastic is a chemical building material compounded by high technology, the chemical building material is a fourth major novel building material which is newly developed in the modern times after steel, wood and cement, the plastic is developed into an important product in plastic products, and is one of main products with more use amount in the chemical building material, and the plastic is applied to the field of pole protective layer cushion blocks at present.
The pole protective layer cushion that has now on the market generally is plastic protective layer cushion, and it not only can reduce the operation degree of difficulty, reduces raw and other materials quantity, and reduce cost improves the validity and the stability of pole owner muscle protective layer, but plastic cushion compares with cement material, though light in weight, but its holding capacity is relatively poor, and weather resistance can satisfy the demand, awaits the opportune moment and solve.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a protective layer cushion block for a concrete pole and a preparation method thereof.
A preparation method of a protective layer cushion block for a concrete pole comprises the following steps:
s1, stirring gamma-aminopropyl-trimethoxy silane, nano mica powder and an ethanol solution to obtain pretreated nano mica powder;
s2, uniformly mixing aniline trimer, stannous octoate and toluene, adding caprolactone under the protection of nitrogen, stirring for 1-2 hours at the temperature of 110-120 ℃, precipitating by adopting ethanol, drying the precipitate, adding an isopropanol aqueous solution into the precipitate, adding nano graphene, dehydroabietic acid (2-acryloyloxyethyl) ester, polyvinylpyrrolidone and azobisisobutyronitrile under the high-speed stirring state, stirring for 30-50 minutes at the temperature of 70-80 ℃ under the protection of nitrogen, centrifuging, removing supernatant, washing the precipitate, and drying to obtain a prefabricated dispersant;
s3, stirring polypropylene, ethylene octene copolymer and polypropylene grafted maleic anhydride, adding pretreated nano mica powder, a preformed dispersant, an antioxidant and zinc stearate, continuously stirring, blending, extruding, cooling, granulating, and performing injection molding at the temperature of 200 ℃ to obtain the protective layer cushion block for the concrete electric pole.
Preferably, in S1, the mass ratio of gamma-aminopropyl-trimethoxy silane to nano mica powder is 1-3: 10-20.
Preferably, in S1, the nano mica powder has a particle size of 10-200nm, wherein the nano mica powder with a particle size of 10nm or more and less than 100nm accounts for 50-60% by mass, the nano mica powder with a particle size of 100nm or more and less than 160nm accounts for 20-30% by mass, and the rest is the nano mica powder with a particle size of 160nm or more and less than 200 nm.
Preferably, in S2, the mass fraction of the aqueous isopropanol solution is 30-40%, and the mass ratio of aniline trimer, stannous octoate, toluene, caprolactone, the aqueous isopropanol solution, nano graphene, dehydroabietic acid (2-acryloyloxyethyl) ester, polyvinyl pyrrolidone, and azobisisobutyronitrile is 2-4: 0.1-0.2: 40-50: 4-10: 50-70: 1-3: 1-2: 1-3: 0.01-0.05.
Preferably, in S3, the mass ratio of polypropylene, ethylene-octene copolymer, polypropylene grafted maleic anhydride, pretreated nano mica powder, preformed dispersant, antioxidant and zinc stearate is 40-80: 5-12: 1-2: 10-20: 4-8: 1-2: 1-2.
The technical effects of the invention are as follows:
the interior of the nano mica powder has a layered structure, the nano mica powder is mainly hexagonal flaky crystals, the weather resistance is excellent, and the sheet has elasticity, so that the nano mica powder is applied to a protective layer cushion block, the cushion block has a good impact absorption effect, the cushion block has good bearing capacity, but the bonding effect with polypropylene is poor, the bonding strength with the polypropylene can be effectively enhanced by grafting gamma-aminopropyl-trimethoxy silane on the surface of the nano mica powder, but the problems of easy agglomeration and poor dispersibility in a system still exist;
according to the invention, after the aniline trimer and caprolactone react, as the conjugated chain on the aniline trimer is shorter than polyaniline and the molecular defect is small, the graphene can be stably dispersed in an isopropanol aqueous solution without chemical reaction, dehydroabietic acid (2-acryloyloxyethyl) ester and polyvinyl pyrrolidone are further added, and polymer microspheres are formed on the surface of the nano graphene through dispersion polymerization, so that the dispersion performance is excellent, the dispersion of pretreated nano mica powder in a system can be effectively promoted, the agglomeration phenomenon is avoided, the particle size of the microspheres is uniform and ranges from 0.1 to 1 mu m, and the obtained polymer elastic microspheres are compounded with the elastic sheet of the mica powder and applied to a cushion block protective layer, so that the external impact can be fully absorbed in the system, and the bearing capacity of a plastic cushion block is enhanced.
The cushion block prepared by the method has the advantages of low density, extremely light weight, excellent corrosion resistance, good impact resistance and good bearing capacity, and the notch impact strength of the simply supported beam is as high as 21.8kJ/m2The tensile strength reaches 89.6MPa, and the bending strength reaches 120.7 MPa.
The protective layer cushion block for the concrete pole is prepared by the preparation method of the protective layer cushion block for the concrete pole.
Preferably, the concrete pole comprises a plurality of criss-cross main bars and spiral bars, the protective layer cushion block is arranged at the crossing position of the main bars and the spiral bars to fix the crossing position,
the protective layer cushion block comprises a base block, and one side of the base block, which faces the main rib, is provided with a first clamping groove for the main rib to penetrate through along the axis direction of the main rib; a pressing plate is arranged in the first clamping groove, one side of the pressing plate, facing the main rib, is provided with a cambered surface which is attached to the outer side of the main rib, and threads are distributed on the cambered surface;
two clamping grooves II for the spiral ribs to penetrate through are formed in the two sides of the base block in the axis direction of the spiral ribs; and an insertion groove for inserting the spiral rib into the second clamping groove is formed in one side of the base block facing the spiral rib.
Preferably, two ends of the pressing plate extend out of the first clamping groove along the directions of two ends of the axis of the main rib respectively.
Preferably, a salient point is inserted into one side of the base block, which is far away from the first clamping groove; one end of the salient point extends into the first clamping groove and is supported on one side, far away from the cambered surface, of the pressing plate, and the other end of the salient point extends to the outer side of the base block in a point shape.
Preferably, the salient point comprises two ribs I and two ribs II, one end of each rib I and one end of each rib II are distributed in a crisscross manner and fixed on the corresponding plate body of the pressing plate; the other ends of the two first ribs and the other ends of the two second ribs converge towards the center to form the dotted structure.
Preferably, the notch of one side of the clamping groove facing the main rib is in a flaring shape; the insertion groove is communicated with the clamping groove, and the notch of one side of the insertion groove, facing the spiral rib, is in a flaring shape.
Preferably, the base block and the salient points are integrally formed through pressurization.
Preferably, the base block located on two sides of the notch of the insertion groove is relatively provided with two joining blocks, one of the joining blocks is slidably inserted with an insertion rod, and the other joining block is provided with an insertion groove in insertion fit with the insertion rod.
Preferably, a top groove is formed in the groove wall of the insertion groove, and a top bead matched with the top groove is elastically arranged on the rod wall of the insertion rod.
Preferably, a bead groove is formed in the rod wall of the inserted rod, and the bead groove is elastically connected with the ejecting bead through a spring.
Preferably, when the spring is not in a deformed state, the bead center of the top bead is flush with the notch of the bead groove.
The structure types of the common main rib protective layer cushion blocks at present are mainly concentrated on a circle and a semicircle, the material cost is high, the structure is complex, and the cushion blocks, the main ribs and the spiral ribs are easy to rotate in the using process, so that the thickness of the main rib protective layer exceeds the standard, and the main rib protective layer cushion blocks are unreasonable in use and economic consideration.
According to the invention, on the basis of the plastic material, through arrangement of the structure, the production cost can be reduced to the greatest extent, secondly, the protective layer cushion block is small in appearance and convenient to operate, and the efficiency is improved, and finally, the cushion block is connected at the intersection of the main rib and the spiral rib in a buckling mode, so that the risk of circumferential and longitudinal rotation of the cushion block is effectively avoided, and the phenomenon that the protective layer thickness of the main rib exceeds the standard is prevented.
Drawings
Fig. 1 is a schematic front view of a protective layer spacer for a concrete pole according to an embodiment of the present invention;
FIG. 2 is a side view of the protective layer spacer of FIG. 1 for a concrete pole;
FIG. 3 is a schematic sectional view of the connecting block and the plug rod of FIG. 2 in a connecting state;
fig. 4 is an enlarged schematic view of a portion a in fig. 3.
Description of the main symbols:
1. a base block; 2. a first clamping groove; 4. salient points; 5. pressing a plate; 6. a second clamping groove; 7. inserting the groove; 8. a first rib; 9. a second rib; 10. a joining block; 11. inserting a rod; 12. a slot; 13. a bead groove; 14. a spring; 15. a top bead; 16. and (4) a top groove.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
Referring to fig. 1 to 4, a protective layer spacer for a concrete pole, the concrete pole including a plurality of criss-cross main bars (not shown) and spiral bars (not shown), is disposed at an intersection of the main bars and the spiral bars for fixing the intersection. Can make main muscle and the contact department effective connection at spiral muscle intersect through this protective layer cushion to improve the validity and the stability of pole main muscle protective layer.
The protective layer cushion block comprises a base block 1, and the base block 1 is a block body which is rectangular and solid and is made of plastic materials. One side of the base block 1 facing the main ribs is provided with a first clamping groove 2 for the main ribs to penetrate through along the axis direction of the main ribs, and the main ribs at staggered positions can be clamped and fixed through the first clamping groove 2. A pressing plate 5 is arranged in the first clamping groove 2, one side of the pressing plate 5 facing the main rib is provided with a cambered surface attached to the outer side of the main rib, and threads (not shown) are distributed on the cambered surface. Can make clamp plate 5 and main muscle surface laminate more through the cambered surface, make wearing of main muscle in pressing from both sides groove 2 put more steadily, the static friction power between screw thread can effectively strengthen cushion and the main muscle to a certain extent plays the antiskid effect.
Two clamping grooves 6 for the spiral ribs to pass through are formed in the two sides of the base block 1 in the axis direction of the spiral ribs. The clamping and fixing of the spiral ribs at the staggered positions can be realized through the second clamping groove 6. One side of the base block 1 facing the spiral rib is provided with an insertion groove 7 for inserting the spiral rib into the second clamping groove 6.
The two ends of the pressing plate 5 extend out of the first clamping groove 2 along the directions of the two ends of the axis of the main rib respectively so as to increase the contact area of the pressing plate 5 and the surface of the main rib in the axis direction of the main rib and enhance the pressing effect of the pressing plate 5 on the main rib in the first clamping groove 2.
The base block 1 is far away from one side of the clamping groove I2 and is inserted with a salient point 4, and the height of the highest point of the salient point 4 from the contact surface of the main rib is 22 mm. One end of the salient point 4 extends into the first clamping groove 2 and is supported on one side of the pressing plate 5 far away from the cambered surface, and the other end of the salient point is dotted and extends out of the base block 1. Through the salient point 4, can provide effectual protection thickness distance for the main muscle of pole.
Furthermore, the salient point 4 comprises two ribs I8 and two ribs II 9, one end of each of the two ribs I8 and one end of each of the two ribs II 9 are distributed in a crisscross manner and fixed on the corresponding plate body of the pressing plate 5. The other ends of the two ribs I8 and the other ends of the two ribs II 9 converge towards the center to form a dot-shaped structure. Therefore, in this embodiment, the bump 4 is reinforced by four ribs, so that the structure of the bump 4 is simplified, the appearance volume of the protective layer cushion block is reduced, the operation is convenient, the efficiency is improved, and the production cost is saved.
The notch of the first clamping groove 2 facing one side of the main rib is in a flaring shape, so that the first clamping groove 2 forms a structure similar to a buckle, and the main rib can enter the first clamping groove 2 more stably. The insertion groove 7 is communicated with the second clamping groove 6, and the notch of the insertion groove 7 on one side facing the spiral rib is in an opening shape, so that the second clamping groove 6 forms a structure similar to a buckle, and the spiral rib can enter the second clamping groove 6 more stably.
In the embodiment, the total length of the two clamping grooves II 6 is 28mm, the inner diameter of the clamping groove II 6 can meet the requirement of buckling the spiral rib with the diameter of phi 3.0-phi 5.0, the thickness of the groove wall of the clamping groove I2 is 3mm, and the contact surface of the middle part of the clamping groove II and the longitudinal main rib is hollowed out, so that the cushion block is ensured to smoothly fall, and the problem that the thickness of a protective layer of the main rib of the electric pole exceeds the standard due to the fact that the cushion block, the main rib and the spiral rib do not rotate is solved.
The base block 1 and the salient points 4 are integrally pressurized and formed, so that the whole structure of the protective layer cushion block is more stable and reliable, and meanwhile, the production and manufacturing processes are also saved.
Two connecting blocks 10 are oppositely arranged on the base block 1 at two sides of the notch of the insertion groove 7, wherein an insertion rod 11 is inserted on one of the connecting blocks 10 in a sliding way, and a sliding hole (not shown) for the insertion rod 11 to pass through in a sliding way is formed in the connecting block 10. The other connecting block 10 is provided with a slot 12 which is matched with the inserted rod 11 in an inserted manner.
In this embodiment, since the base block 1 is made of plastic, the base block 1 has a certain elastic deformation capability, the spiral rib can enter the second clamping groove 6 through the insertion groove 7, and then the connection between the second clamping groove 6 and the insertion groove 7 is tightened through the insertion rod 11, so that the spiral rib cannot be separated from the insertion groove 7, and the clamping of the spiral rib in the insertion groove 7 is more stable and reliable.
The wall of the slot 12 is provided with a top groove 16, and the wall of the inserted link 11 is elastically provided with a top bead 15 matched with the top groove 16. Furthermore, a ball groove 13 is formed in the rod wall of the insert rod 11, and the ball groove 13 is elastically connected with a top ball 15 through a spring 14. When the spring 14 is not in a deformed state, the bead center of the top bead 15 is flush with the notch of the bead groove 13. The top ball 15 is pushed into the top groove 16 through the elasticity of the spring 14, so that the insertion rod 11 is locked and fixed in the slot 12, and the locking and fixing are convenient and quick.
The working principle of the invention is as follows:
when a framework of a concrete pole is constructed, the protective layer cushion block is installed at each intersection of a main rib and a spiral rib, specifically, a flaring part 2 of a clamping groove I of a base block 1 is pressed to the main rib at the intersection, the cambered surface of an inner pressing plate 5 of the clamping groove I2 is made to be in contact with the outer side surface of the main rib, two insertion grooves 7 of the base block 1 are pressed to the spiral rib at the intersection at the same time, the spiral rib enters a corresponding clamping groove II 6 from the two insertion grooves 7 respectively, and each pair of connection blocks 10 are connected through an insertion rod 11, so that the connection part of the clamping groove II 6 and the insertion grooves 7 is tensioned, the spiral rib is clamped in the clamping groove II 6 more stably and reliably, and the protective layer cushion block is installed at the intersection of the main rib and the spiral rib.
In the process of connecting each pair of connecting blocks 10 by the inserted link 11, when the inserted link 11 is just in contact with the slot 12, the top bead 15 is pressed into the bead groove 13 by the extrusion force from the slot wall of the slot 12, and the spring 14 is compressed, when the inserted link 11 is completely inserted into the slot 12, the top bead 15 is just opposite to the top groove 16, the top bead 15 is not pressed by the extrusion force from the slot wall of the slot 12, and the spring 14 releases the elastic force to push the top bead 15 into the top groove 16, so that the top bead 15 and the top groove 16 are clamped with each other, and the connection between the inserted link 11 and the slot 12 is more stable.
Example 2
The preparation method of the protective layer cushion block for the concrete pole, which is described in the embodiment 1, comprises the following steps:
s1, stirring 1kg of gamma-aminopropyl-trimethoxy silane, 20kg of nano mica powder and 50kg of ethanol solution with the mass fraction of 50% for 10min at the stirring speed of 1500r/min to obtain pretreated nano mica powder;
s2, uniformly mixing 2kg of aniline trimer, 0.2kg of stannous octoate and 40kg of toluene, adding 10kg of caprolactone under the protection of nitrogen, stirring for 2 hours at 110 ℃, precipitating by using ethanol, drying the precipitate, adding 50kg of isopropanol aqueous solution with the mass fraction of 40% into the precipitate, adding 1kg of nano graphene, 2kg of dehydroabietic acid (2-acryloyloxyethyl) ester, 1kg of polyethylene pyrrolidone and 0.05kg of azobisisobutyronitrile under the high-speed stirring state, stirring for 50 minutes at 70 ℃ under the protection of nitrogen, separating by using a centrifugal machine, removing supernatant, washing the precipitate, and drying to obtain a prefabricated dispersant;
s3, stirring 40kg of polypropylene, 12kg of ethylene-octene copolymer and 1kg of polypropylene grafted maleic anhydride for 8min at the stirring speed of 1000r/min, adding 20kg of pretreated nano mica powder, 4kg of prefabricated dispersant, 2kg of antioxidant and 1kg of zinc stearate, continuously stirring for 4min, blending, extruding, cooling, granulating, and performing injection molding at 190 ℃ to obtain the protective layer cushion block for the concrete pole.
Example 3
The preparation method of the protective layer cushion block for the concrete pole, which is described in the embodiment 1, comprises the following steps:
s1, stirring 3kg of gamma-aminopropyl-trimethoxy silane, 10kg of nano mica powder and 100kg of 40% ethanol solution for 15min at the stirring speed of 1200r/min to obtain pretreated nano mica powder;
s2, uniformly mixing 4kg of aniline trimer, 0.1kg of stannous octoate and 50kg of toluene, adding 4kg of caprolactone under the protection of nitrogen, stirring for 1h at 120 ℃, precipitating by using ethanol, drying the precipitate, adding 70kg of 30% by mass isopropanol aqueous solution into the precipitate, adding 3kg of nano graphene, 1kg of dehydroabietic acid (2-acryloyloxyethyl) ester, 3kg of polyethylene pyrrolidone and 0.01kg of azobisisobutyronitrile under the high-speed stirring state, stirring for 30min at 80 ℃ under the protection of nitrogen, separating by using a centrifugal machine, removing supernatant, washing the precipitate, and drying to obtain a prefabricated dispersant;
s3, stirring 80kg of polypropylene, 5kg of ethylene-octene copolymer and 2kg of polypropylene grafted maleic anhydride for 2min at the stirring speed of 2000r/min, adding 10kg of pretreated nano mica powder, 8kg of prefabricated dispersant, 1kg of antioxidant and 2kg of zinc stearate, continuing stirring for 2min, blending, extruding, cooling, granulating, and performing injection molding at 200 ℃ to obtain the protective layer cushion block for the concrete pole.
Example 4
The preparation method of the protective layer cushion block for the concrete pole, which is described in the embodiment 1, comprises the following steps:
s1, stirring 1.5kg of gamma-aminopropyl-trimethoxy silane, 18kg of nano mica powder and 60kg of ethanol solution with the mass fraction of 48% for 12min at the stirring speed of 1400r/min to obtain pretreated nano mica powder;
s2, uniformly mixing 2.5kg of aniline trimer, 0.18kg of stannous octoate and 43kg of toluene, adding 8kg of caprolactone under the protection of nitrogen, stirring for 1.8h at 112 ℃, precipitating with ethanol, drying the precipitate, adding 55kg of an isopropanol aqueous solution with the mass fraction of 37% into the precipitate, adding 1.5kg of nano graphene, 1.7kg of dehydroabietic acid (2-acryloyloxyethyl) ester, 1.5kg of polyethylene pyrrolidone and 0.04kg of azobisisobutyronitrile into the precipitate under the high-speed stirring state, stirring for 45min at 73 ℃ under the protection of nitrogen, separating by using a centrifugal machine, removing the supernatant, washing the precipitate, and drying to obtain a prefabricated dispersant;
s3, stirring 50kg of polypropylene, 10kg of ethylene-octene copolymer and 1.3kg of polypropylene grafted maleic anhydride for 6min at the stirring speed of 1200r/min, adding 17kg of pretreated nano mica powder, 5kg of prefabricated dispersant, 1.7kg of antioxidant and 1.2kg of zinc stearate, continuously stirring for 3.5min, blending, extruding, cooling, granulating, and performing injection molding at 192 ℃ to obtain the protective layer cushion block for the concrete pole.
Example 5
The preparation method of the protective layer cushion block for the concrete pole, which is described in the embodiment 1, comprises the following steps:
s1, stirring 2.5kg of gamma-aminopropyl-trimethoxy silane, 12kg of nano mica powder and 80kg of ethanol solution with the mass fraction of 42% for 14min at the stirring speed of 1300r/min to obtain pretreated nano mica powder;
s2, uniformly mixing 3.5kg of aniline trimer, 0.12kg of stannous octoate and 47kg of toluene, adding 6kg of caprolactone under the protection of nitrogen, stirring for 1.2h at 118 ℃, precipitating with ethanol, drying the precipitate, adding 65kg of an isopropanol aqueous solution with the mass fraction of 33% into the precipitate, adding 2.5kg of nano graphene, 1.3kg of dehydroabietic acid (2-acryloyloxyethyl) ester, 2.5kg of polyvinylpyrrolidone and 0.02kg of azobisisobutyronitrile into the precipitate under a high-speed stirring state, stirring for 35min at 77 ℃ under the protection of nitrogen, separating by using a centrifugal machine, removing supernatant, washing the precipitate, and drying to obtain a prefabricated dispersant;
s3, stirring 70kg of polypropylene, 8kg of ethylene-octene copolymer and 1.7kg of polypropylene grafted maleic anhydride for 4min at the stirring speed of 800r/min, adding 13kg of pretreated nano mica powder, 7kg of prefabricated dispersant, 1.3kg of antioxidant and 1.8kg of zinc stearate, continuously stirring for 2.5min, blending, extruding, cooling, granulating, and performing injection molding at 198 ℃ to obtain the protective layer cushion block for the concrete pole.
Example 6
The preparation method of the protective layer cushion block for the concrete pole, which is described in the embodiment 1, comprises the following steps:
s1, stirring 2kg of gamma-aminopropyl-trimethoxy silane, 15kg of nano mica powder and 70kg of 45% ethanol solution for 13min at the stirring speed of 1350r/min to obtain pretreated nano mica powder;
s2, uniformly mixing 3kg of aniline trimer, 0.15kg of stannous octoate and 45kg of toluene, adding 7kg of caprolactone under the protection of nitrogen, stirring at 115 ℃ for 1.5h, precipitating with ethanol, drying the precipitate, adding 60kg of 35% by mass isopropanol aqueous solution into the precipitate, adding 2kg of nano graphene, 1.5kg of dehydroabietic acid (2-acryloyloxyethyl) ester, 2kg of polyvinylpyrrolidone and 0.03kg of azobisisobutyronitrile under the high-speed stirring state, stirring at 75 ℃ for 40min under the protection of nitrogen, separating by using a centrifugal machine, removing supernatant, washing the precipitate, and drying to obtain a pre-prepared dispersing agent;
s3, stirring 60kg of polypropylene, 9kg of ethylene-octene copolymer and 1.5kg of polypropylene grafted maleic anhydride for 5min at the stirring speed of 1500r/min, adding 15kg of pretreated nano mica powder, 6kg of prefabricated dispersant, 1.5kg of antioxidant and 1.5kg of zinc stearate, continuing stirring for 3min, blending, extruding, cooling, granulating, and performing injection molding at 195 ℃ to obtain the protective layer cushion block for the concrete electric pole.
Comparative example 1
The preparation method of the protective layer cushion block for the concrete pole, which is described in the embodiment 1, comprises the following steps:
s1, uniformly mixing 3kg of aniline trimer, 0.15kg of stannous octoate and 45kg of toluene, adding 7kg of caprolactone under the protection of nitrogen, stirring at 115 ℃ for 1.5h, precipitating with ethanol, drying the precipitate, adding 60kg of 35% by mass isopropanol aqueous solution into the precipitate, adding 2kg of nano graphene, 1.5kg of dehydroabietic acid (2-acryloyloxyethyl) ester, 2kg of polyvinylpyrrolidone and 0.03kg of azobisisobutyronitrile under the high-speed stirring state, stirring at 75 ℃ for 40min under the protection of nitrogen, separating by using a centrifugal machine, removing supernatant, washing the precipitate, and drying to obtain a pre-prepared dispersing agent;
s2, stirring 60kg of polypropylene, 9kg of ethylene-octene copolymer and 1.5kg of polypropylene grafted maleic anhydride for 5min at the stirring speed of 1500r/min, adding 15kg of nano mica powder, 6kg of prefabricated dispersant, 1.5kg of antioxidant and 1.5kg of zinc stearate, continuing stirring for 3min, blending, extruding, cooling, granulating, and performing injection molding at 195 ℃ to obtain the protective layer cushion block for the concrete pole.
Comparative example 2
The preparation method of the protective layer cushion block for the concrete pole, which is described in the embodiment 1, comprises the following steps:
s1, stirring 2kg of gamma-aminopropyl-trimethoxy silane, 15kg of nano mica powder and 70kg of 45% ethanol solution for 13min at the stirring speed of 1350r/min to obtain pretreated nano mica powder;
s2, stirring 60kg of polypropylene, 9kg of ethylene-octene copolymer and 1.5kg of polypropylene grafted maleic anhydride for 5min at the stirring speed of 1500r/min, adding 15kg of pretreated nano mica powder, 6kg of polyethylene glycol 200, 1.5kg of antioxidant and 1.5kg of zinc stearate, continuously stirring for 3min, blending, extruding, cooling, granulating, and performing injection molding at 195 ℃ to obtain the protective layer cushion block for the concrete electric pole.
Comparative example 3
The preparation method of the protective layer cushion block for the concrete pole, which is described in the embodiment 1, comprises the following steps:
s1, stirring 2kg of gamma-aminopropyl-trimethoxy silane, 15kg of nano mica powder and 70kg of 45% ethanol solution for 13min at the stirring speed of 1350r/min to obtain pretreated nano mica powder;
s2, uniformly mixing 3kg of aniline trimer, 0.15kg of stannous octoate and 45kg of toluene, adding 7kg of caprolactone under the protection of nitrogen, stirring at 115 ℃ for 1.5h, precipitating with ethanol, drying the precipitate, adding 60kg of 35% by mass isopropanol aqueous solution into the precipitate, adding 1.5kg of dehydroabietic acid (2-acryloyloxyethyl) ester, 2kg of polyvinylpyrrolidone and 0.03kg of azobisisobutyronitrile under the high-speed stirring state, stirring at 75 ℃ for 40min under the protection of nitrogen, separating by using a centrifuge, removing supernatant, washing the precipitate, and drying to obtain a prefabricated dispersant;
s3, stirring 60kg of polypropylene, 9kg of ethylene-octene copolymer and 1.5kg of polypropylene grafted maleic anhydride for 5min at the stirring speed of 1500r/min, adding 15kg of pretreated nano mica powder, 6kg of prefabricated dispersant, 1.5kg of antioxidant and 1.5kg of zinc stearate, continuing stirring for 3min, blending, extruding, cooling, granulating, and performing injection molding at 195 ℃ to obtain the protective layer cushion block for the concrete electric pole.
Comparative example 4
The preparation method of the protective layer cushion block for the concrete pole, which is described in the embodiment 1, comprises the following steps:
s1, stirring 2kg of gamma-aminopropyl-trimethoxy silane, 15kg of nano mica powder and 70kg of 45% ethanol solution for 13min at the stirring speed of 1350r/min to obtain pretreated nano mica powder;
s2, uniformly mixing 3kg of aniline trimer, 0.15kg of stannous octoate and 45kg of toluene, adding 7kg of caprolactone under the protection of nitrogen, stirring for 1.5h at 115 ℃, precipitating by using ethanol, drying the precipitate, adding 60kg of 35% by mass isopropanol aqueous solution into the precipitate, adding 2kg of nano graphene, 1.5kg of dehydroabietic acid (2-acryloyloxyethyl) ester, 2kg of polyvinylpyrrolidone and 0.03kg of azobisisobutyronitrile under a high-speed stirring state, and stirring for 40min at 75 ℃ under the protection of nitrogen to obtain a prefabricated dispersant;
s3, stirring 60kg of polypropylene, 9kg of ethylene-octene copolymer and 1.5kg of polypropylene grafted maleic anhydride for 5min at the stirring speed of 1500r/min, adding 15kg of pretreated nano mica powder, 6kg of prefabricated dispersant, 1.5kg of antioxidant and 1.5kg of zinc stearate, continuing stirring for 3min, blending, extruding, cooling, granulating, and performing injection molding at 195 ℃ to obtain the protective layer cushion block for the concrete electric pole.
The protective layer mat obtained in example 6 and the protective layer mats obtained in comparative examples 1 to 4 were subjected to performance tests, and the results were as follows:
the protective layer cushion block obtained in example 6 and the protective layer cushion blocks obtained in comparative examples 1 to 4 were placed in an ultraviolet light accelerated aging oven, subjected to ultraviolet light irradiation treatment, and taken out to measure tensile properties and impact properties.
Wherein, ultraviolet wavelength of ultraviolet lamp tube in the aging box is mainly collectedMiddle at about 313nm, lamp power of 40W, 0.8W/m2The temperature in the oven was maintained at 60 ℃.
The results are as follows:
from the above results, it can be seen that: the protective layer cushion block obtained by the invention has the advantages of low density, tensile resistance, bending resistance, excellent impact resistance, high bearing capacity, excellent weather resistance, small mechanical property attenuation amplitude under the condition of ultraviolet radiation, suitability for concrete poles, effective avoidance of the risk of circumferential and longitudinal rotation of the cushion block, improvement of the effectiveness and stability of the protective layer of the main reinforcement of the pole, and prevention of the phenomenon that the thickness of the protective layer of the main reinforcement exceeds the standard.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A preparation method of a protective layer cushion block for a concrete pole is characterized by comprising the following steps:
s1, stirring gamma-aminopropyl-trimethoxy silane, nano mica powder and an ethanol solution to obtain pretreated nano mica powder;
s2, uniformly mixing aniline trimer, stannous octoate and toluene, adding caprolactone under the protection of nitrogen, stirring for 1-2 hours at the temperature of 110-120 ℃, precipitating by adopting ethanol, drying the precipitate, adding an isopropanol aqueous solution into the precipitate, adding nano graphene, dehydroabietic acid (2-acryloyloxyethyl) ester, polyvinylpyrrolidone and azobisisobutyronitrile under the high-speed stirring state, stirring for 30-50 minutes at the temperature of 70-80 ℃ under the protection of nitrogen, centrifuging, removing supernatant, washing the precipitate, and drying to obtain a prefabricated dispersant;
s3, stirring polypropylene, ethylene octene copolymer and polypropylene grafted maleic anhydride, adding pretreated nano mica powder, a preformed dispersant, an antioxidant and zinc stearate, continuously stirring, blending, extruding, cooling, granulating, and performing injection molding at the temperature of 200 ℃ to obtain the protective layer cushion block for the concrete electric pole.
2. The method for preparing a protective layer cushion block for a concrete pole according to claim 1, wherein in S1, the mass ratio of gamma-aminopropyl-trimethoxy silane to nano mica powder is 1-3: 10-20.
3. The method of claim 1, wherein in S1, the nano mica powder has a particle size of 10-200nm, wherein the nano mica powder with a particle size of 10nm or more and less than 100nm accounts for 50-60 wt%, the nano mica powder with a particle size of 100nm or more and less than 160nm accounts for 20-30 wt%, and the rest is the nano mica powder with a particle size of 160nm or more and less than 200 nm.
4. The method for preparing a protective layer cushion block for a concrete pole according to claim 1, wherein in S2, the mass fraction of the isopropanol aqueous solution is 30-40%, and the mass ratio of aniline trimer, stannous octoate, toluene, caprolactone, isopropanol aqueous solution, nano-graphene, dehydroabietic acid (2-acryloyloxyethyl) ester, polyvinyl pyrrolidone and azobisisobutyronitrile is 2-4: 0.1-0.2: 40-50: 4-10: 50-70: 1-3: 1-2: 1-3: 0.01-0.05.
5. The method for preparing the protective layer cushion block for the concrete pole as claimed in claim 1, wherein in S3, the mass ratio of polypropylene, ethylene-octene copolymer, polypropylene grafted maleic anhydride, pretreated nano mica powder, pre-prepared dispersant, antioxidant and zinc stearate is 40-80: 5-12: 1-2: 10-20: 4-8: 1-2: 1-2.
6. A protective layer block for a concrete pole, which is manufactured by the method of manufacturing a protective layer block for a concrete pole according to any one of claims 1 to 5.
7. The protective covering pad for a concrete pole according to claim 6, wherein the concrete pole includes a plurality of criss-cross main bars and spiral bars, the protective covering pad is provided at intersections of the main bars and the spiral bars to fix the intersections,
it is characterized in that the preparation method is characterized in that,
the protective layer cushion block comprises a base block, and one side of the base block, which faces the main rib, is provided with a first clamping groove for the main rib to penetrate through along the axis direction of the main rib; a pressing plate is arranged in the first clamping groove, one side of the pressing plate, facing the main rib, is provided with a cambered surface which is attached to the outer side of the main rib, and threads are distributed on the cambered surface;
two clamping grooves II for the spiral ribs to penetrate through are formed in the two sides of the base block in the axis direction of the spiral ribs; and an insertion groove for inserting the spiral rib into the second clamping groove is formed in one side of the base block facing the spiral rib.
8. A protective covering pad for a concrete pole as recited in claim 7, wherein both ends of said pressure plate extend outwardly of said one of said clamping grooves in the direction of both ends of said main bar axis.
9. The protective layer spacer for a concrete pole as set forth in claim 7, wherein a projection is inserted through a side of said base block remote from said first clamping groove; one end of the salient point extends into the first clamping groove and is supported on one side, far away from the cambered surface, of the pressing plate, and the other end of the salient point extends to the outer side of the base block in a point shape.
10. The protective layer spacer for a concrete pole as set forth in claim 9, wherein said projection includes two first ribs and two second ribs, one end of said first ribs and one end of said second ribs being disposed in a criss-cross arrangement and fixed to the corresponding plate body of said pressing plate; the other ends of the two first ribs and the other ends of the two second ribs converge towards the center to form the dotted structure.
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| CN110748187A (en) * | 2019-10-30 | 2020-02-04 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Method for reinforcing service pole by mixing FRP (fiber reinforced Plastic) ribs |
| CN111168832A (en) * | 2020-02-13 | 2020-05-19 | 广西聚诚电力线路器材有限公司 | Electric pole protective layer support |
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