CN109502190B - Ultraviolet-proof low-density double-tube vacuum bottle and preparation method thereof - Google Patents
Ultraviolet-proof low-density double-tube vacuum bottle and preparation method thereof Download PDFInfo
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- CN109502190B CN109502190B CN201811307599.8A CN201811307599A CN109502190B CN 109502190 B CN109502190 B CN 109502190B CN 201811307599 A CN201811307599 A CN 201811307599A CN 109502190 B CN109502190 B CN 109502190B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
- B65D81/2015—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in an at least partially rigid container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/0446—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
- B65D2577/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D2577/041—Details of two or more containers disposed one within another
- B65D2577/042—Comprising several inner containers
- B65D2577/043—Comprising several inner containers arranged side by side
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The utility model relates to an ultraviolet-proof low-density double-tube vacuum bottle and a preparation method thereof, which are designed aiming at the technical problems that the head cap in the existing similar products is poor in positioning and guiding effects, middle ring parts in structural design are difficult to omit, automatic production is difficult, and the parts are difficult to adopt ultraviolet-proof low-density materials for production and preparation. The main point is that the inner diameter of the large ring bottom of the double-tube vacuum bottle is symmetrically provided with an inner bottle sleeve, the large ring on the outer side of the inner bottle sleeve is provided with an outer bottle sleeve, the inner bottle sleeve of the large ring is respectively buckled with the inner diameter of the bottle mouth of the inner bottle, the outer bottle sleeve of the large ring is buckled with the inner diameter of the bottle mouth of the outer bottle, a cover plate is sleeved between the outer diameter of the bottle mouth of the inner bottle and the inner diameter of the bottle mouth of the outer bottle, a pump body and an inner plug cover of the pump core assembly are respectively buckled and fixed with a pump core hole of the large ring, a valve rod of the pump core assembly extends out of the pump core hole of the large ring and is buckled and connected with a head cap, a piston is arranged in the inner bottle, a through hole is formed in an interlayer between the pump core holes of the large ring, and the inner bottle and the outer bottle are prepared by adopting ultraviolet-proof low-density resin materials.
Description
Technical Field
The utility model relates to a vacuum bottle, in particular to an ultraviolet-proof low-density double-tube vacuum bottle and a preparation method thereof.
Background
The vacuum bottle is a container capable of isolating gas from external temperature or isolating external bacteria, and is commercially available and consists of a cylinder-shaped ellipsoid container and a piston arranged at the bottom. The working principle is that the shrinkage force of the spring is used, air is not allowed to enter the bottle, a vacuum state is caused, and the atmospheric pressure is utilized to push the piston at the bottom of the bottle to advance. The existing lower vacuum bottle adopts a double-tube and double-nozzle structure, such as application number 201020106360.7 disclosed in Chinese patent literature, grant bulletin date 2010.11.17 and the name of the utility model is a double-nozzle vacuum bottle; the vacuum bottle comprises an outer cover, a valve body, a shoulder cover, an outer bottle, a middle bottle and an inner bottle, wherein the outer cover and the outer bottle are sequentially clamped on the upper side and the lower side of the outer wall of the shoulder cover, two inner bottles are sleeved on the inner layer of the middle bottle, the bottleneck end of each inner bottle is provided with the valve body consisting of a pump head, a piston and a push rod, and a button with an outer rod is arranged at the top end of the shoulder cover. However, the head caps of the products and the like are poor in positioning and guiding effects and easy to cause clamping when in use, and meanwhile, the fixing effect and the structural design of the inner bottle are poor, and the inner bottle is mainly buckled with the assembly of the internal thread and the external thread between large rings, so that the automatic production and assembly are difficult.
Disclosure of Invention
In order to overcome the defects, the utility model aims to provide an ultraviolet-proof low-density double-tube vacuum bottle and a preparation method thereof for solving the technical problems that in the prior similar products, the positioning and guiding effects of the head caps are poor, the middle ring part of the structural design is difficult to omit, the automatic production is difficult, and the part is difficult to adopt ultraviolet-proof low-density materials for production and preparation. The aim is achieved by the following technical scheme.
The ultraviolet-proof low-density double-tube vacuum bottle comprises an outer cover, a head cap, a large ring, a pump core assembly, a piston, an inner bottle and an outer bottle, wherein the head cap comprises a left head cap and a right head cap, the inner bottle is symmetrically arranged in the outer bottle, the bottle mouth of the inner bottle is buckled with the inner diameter of the large ring at the same time, the outer diameter of the large ring is buckled with the bottle mouth of the outer bottle, and the outer ring sleeve of the outer diameter of the top of the large ring is buckled with the outer cover; the inner diameter of the bottom of the large ring is symmetrically provided with an inner bottle sleeve, the large ring outside the inner bottle sleeve is provided with an outer bottle sleeve, the inner bottle sleeve of the large ring is respectively buckled with the inner diameter of the bottle mouth of the inner bottle, the outer bottle sleeve of the large ring is buckled with the bottle mouth of the outer bottle, a cover plate is sleeved between the outer diameter of the bottle mouth of the inner bottle and the inner diameter of the bottle mouth of the outer bottle, a pump body and an inner plug cover of the pump core assembly are respectively buckled and fixed in a pump core hole of the large ring, a valve rod of the pump core assembly extends out of the pump core hole of the large ring and is buckled and connected with a head cap, a piston is arranged in the inner bottle, and a through hole is formed in an interlayer between the pump core holes of the large ring. The structure is different from that of a conventional double-tube vacuum bottle, the inner bottle is divided into a left inner bottle and a right inner bottle, and the design uses the two inner bottles and a cover plate, so that the die and the production cost are saved to the greatest extent, and the efficiency is improved.
The inner ring diameter below the skirt edge of the inner plug cover is buckled in the pump opening of the pump body, the skirt edge of the inner plug cover props against the pump opening of the pump body, the skirt edge of the inner plug cover is buckled and fixed in a large-ring pump core hole, a valve needle in the pump body is sleeved in a piston, the valve needle stretches out of the pump body and is buckled with a valve rod sleeved in the inner plug cover after the valve needle stretches out of the inner plug cover, the piston is positioned between the inner ring diameter of the inner plug cover and a needle head of the valve needle, a spring is arranged between a top ring table of the inner plug cover and the top ring diameter of the valve rod, a convex plug seal ring diameter is arranged at the joint of the top ring table of the inner plug cover and the valve rod, a liquid inlet of the inner diameter of the top part of the head cap is buckled with a top inner diameter hole of the valve rod, an outer ring diameter of the liquid inlet of the head cap is sleeved in a gap between a rib and an outer ring of the large-ring pump core hole, and a spring sleeve is arranged at the liquid inlet of the pump body. The pump core assembly structure further facilitates the assembly of the pump core assembly on the large ring through automatic production and the assembly of the large ring on the inner bottle and the outer bottle through automatic production.
The inner ribs of the large ring are respectively arranged around the outer sides of the pump core holes of the large ring, inner ring inner ribs which are symmetrically arranged are arranged at the large ring positions between the pump core holes which are connected, outer ring inner ribs which are symmetrically arranged in pairs are arranged at the large ring end corners of one side of the pump core hole, inner ribs which correspond to gaps between the inner ring inner ribs and the outer ring inner ribs are arranged on the inner wall of the shell of the head cap, namely, the inner ribs of the head cap are inserted into the gaps between the inner ring inner ribs and the outer ring inner ribs which are symmetrically arranged in pairs on the inner wall of the shell of the head cap. The above structure prevents the headgear from being skewed.
The outer diameter of the opening of the inner bottle is provided with an outer rib, the inner hole of the cover plate is provided with a convex sealing ring diameter, the outer rib of the opening of the inner bottle is buckled with the sealing ring diameter of the cover plate; the edge of the cover plate is provided with a convex buckling position, the outer bottle corresponding to the buckling position of the cover plate is provided with a buckling hole, and the buckling position of the edge of the cover plate is buckled with the buckling hole of the outer bottle. The structure is different from a conventional double-tube vacuum bottle, the design can save the die and the production cost to the greatest extent, improve the efficiency and still meet the matching requirement and the function. Meanwhile, the large ring and the inner bottle are sealed to be designed into a ring diameter structure of an arc surface, so that the matching tightness is improved, and the liquid leakage is prevented.
The inner bottle and the outer bottle are made of ultraviolet-proof low-density resin materials, and the raw material components of the resin materials are as follows: 80-90 parts of modified polyethylene, 0.1-0.15 part of light stabilizer, 0.05-0.15 part of antioxidant, 0.05-0.15 part of antistatic agent and 0.05-0.1 part of rheology modifier; the modified polyethylene is prepared by polymerizing ethylene serving as a raw material, 1-butene, graphene oxide serving as a comonomer, hydrogen serving as a chain transfer agent, and diethyl aluminum chloride and tri-n-hexyl aluminum serving as cocatalysts by adopting an SLC-S catalyst through a gas phase process; wherein the mol ratio of 1-butene to ethylene is 0.30-0.33, the mol ratio of graphene oxide to 1-butene is 0.1, the reaction temperature is 86-100 ℃, and the reaction pressure is 1.9-2.5MPa; the molar ratio of the hydrogen to the ethylene is 0.26-0.6; the mass ratio of the SLC-S catalyst to the prepared modified polyethylene is 0.00016; the molar ratio of diethylaluminum chloride to SLC-S catalyst was 0.3; the molar ratio of tri-n-hexylaluminum to SLC-S catalyst was 0.2.
The light stabilizer comprises one or more of a light shielding agent and an ultraviolet light absorber, wherein the light shielding agent is one of titanium oxide, phthalocyanine blue or phthalocyanine green, and the ultraviolet light absorber is one or more of salicylate, benzene ketone, benzotriazole or substituted acrylonitrile.
The antioxidant is one or two of phenols and phosphites mixed in any proportion.
The antistatic agent is HDC-102 antistatic agent or HBS-510 antistatic agent.
The rheology modifier is a fatty acid amide selected from one of stearic acid amide, oleic acid amide, erucic acid amide and distearyl ethylenediamine.
The utility model has reasonable structural design, convenient use and assembly, compact and stable assembly of each part, good sealing property and stability, stable liquid outlet, good performance of the prepared material and feasible production method; the double-head bottle is suitable for being used as a double-head bottle for taking away a bead bottle and a vacuum nozzle bottle and the structural improvement of the same products.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model with portions outlined in an enlarged manner.
Fig. 2 is a schematic view of the bottom structure of the left headgear of the present utility model.
Fig. 3 is a schematic view of the bottom structure of the right headgear of the present utility model.
Fig. 4 is a schematic view of the large circle top structure of the present utility model.
Fig. 5 is a schematic view of the large circle bottom structure of the present utility model.
Fig. 6 is a schematic diagram of the structure of the cover sheet of the present utility model.
Fig. 7 is a schematic view of the structure of the inner bottle of the present utility model.
Fig. 8 is a schematic view of the outer bottle structure of the present utility model.
Figure number and name: 1. the device comprises an outer cover, 2, a left head cap, 201, a left head cap inner rib, 3, a right head cap, 301, a right head cap inner rib, 4, a large ring, 401, a ring inner rib, 402, a sealing rib, 5, a cover plate, 501, a sealing ring diameter, 502, a buckling position, 6, a pump core assembly, 7, a piston, 8, an inner bottle, 801, an outer mouth rib, 802, an inner mouth rib, 9, an outer bottle, 901 and a buckling hole.
Description of the embodiments
The structure of the present utility model will now be further described with reference to the accompanying drawings. As shown in fig. 1-8, the double-tube vacuum bottle comprises an outer cover 1, a head cap, a large ring 4, a cover plate 5, a pump core assembly 6, a piston 7, an inner bottle 8 and an outer bottle 9, wherein the head cap comprises a left head cap 2 and a right head cap 3, the inner bottle is symmetrically arranged in the outer bottle, the opening of the inner bottle is buckled with the inner diameter of the large ring at the same time, the outer diameter of the large ring is buckled with the opening of the outer bottle, and the outer ring sleeve of the outer diameter of the top of the large ring is buckled with the outer cover; the inner diameter of the bottom of the large ring is symmetrically provided with an inner bottle sleeve, the large ring outside the inner bottle sleeve is provided with an outer bottle sleeve, the inner bottle sleeve of the large ring is respectively buckled with the inner diameter of the bottle mouth of the inner bottle, the outer bottle sleeve of the large ring is buckled with the inner diameter of the bottle mouth of the outer bottle, a cover plate is sleeved between the outer diameter of the bottle mouth of the inner bottle and the inner diameter of the bottle mouth of the outer bottle, a pump body and an inner plug cover of the pump core assembly are respectively buckled and fixed in a pump core hole of the large ring, a valve rod of the pump core assembly extends out of the pump core hole of the large ring and is buckled with a head cap, a piston is arranged in the inner bottle, and a through hole is formed in an interlayer between the pump core holes in the large ring. The concrete structure is as follows: the inner diameter of the inner plug cover skirt edge lower part of the pump core assembly is buckled in the pump opening of the pump body, the skirt edge of the inner plug cover butts against the pump opening of the pump body, the skirt edge of the inner plug cover is buckled and fixed in a large-circle pump core hole, a valve needle in the pump body is sleeved in a piston, the valve needle stretches out of the pump body and is buckled with a valve rod sleeved in the inner plug cover after the valve needle stretches out of the inner plug cover, the piston is positioned between the inner diameter of the inner plug cover and a needle head of the valve needle, a spring is arranged between a top ring table of the inner plug cover and a top ring diameter of the valve rod, a convex plug seal ring diameter is arranged at the joint of the top ring table of the inner plug cover and the valve rod, a liquid inlet of the top inner diameter of a head cap is buckled with a top inner diameter hole of the valve rod, an outer ring diameter of the liquid inlet of the head cap is sleeved in a gap between an inner rib 401 of the outer ring of the large-circle pump core hole and the outer ring sleeve, and a spring sleeve is arranged at the liquid inlet of the pump body. The inner ribs 401 of the large ring are respectively arranged around the outer sides of the pump core holes of the large ring, inner ring inner ribs which are symmetrically arranged are arranged at the large ring positions between the pump core holes which are connected, outer ring inner ribs which are symmetrically arranged in pairs are arranged at the large ring end corners of one side of the pump core hole, inner ribs which correspond to gaps between the inner ring inner ribs and between the outer ring inner ribs are arranged on the inner wall of the shell of the head cap, namely the inner ribs of the head cap are inserted into the gaps between the inner ring inner ribs and the outer ring inner ribs which are symmetrically arranged in pairs on the inner wall of the shell of the head cap. The outer diameter of the mouth of the inner bottle sleeve of the large circle is respectively provided with a raised sealing rib 402, the inner diameter of the mouth of the large circle corresponding to the inner bottle is provided with an inner mouth rib 802, the sealing rib of the large circle is buckled with the inner mouth rib of the inner bottle, the outer diameter of the mouth of the inner bottle is provided with an outer mouth rib 801, the inner hole of the cover plate is provided with a raised sealing ring diameter 501, and the outer mouth rib of the inner bottle is buckled with the sealing ring diameter of the cover plate; the edge of the cover plate is provided with a convex buckling position 502, the outer bottle corresponding to the buckling position of the cover plate is provided with a buckling hole 901, and the buckling position of the edge of the cover plate is buckled with the buckling hole of the outer bottle.
When the emulsion bottle is used, the outer cover is opened, the corresponding left head cap or right head cap is pressed, and the emulsion in the corresponding inner bottle can flow out from the spray hole on one side of the head cap. The double-tube vacuum bottle is of a double-head cap, double pump cores and double inner bottle design structure, and the inner ribs of the left head cap and the inner ribs of the right head cap are matched with the inner ribs of the large ring in a positioning manner to prevent the head cap from tilting; the inner hole of the cover plate is fixedly matched with the buckling position of the inner bottle, the buckling position of the assembled cover plate is buckled into the outer bottle to form a bottle body for assembly, and the design is different from a conventional double-tube vacuum bottle, can maximally save a die, improve the production cost and efficiency, and still can meet the matching requirement and function; the sealing matching surface of the large ring and the inner bottle is designed into an arc, so that sealing matching can be effectively increased. In the automatic assembly production process, the inner bottle is fixed in the outer bottle through the automatic mechanical equipment, then the large-circle inner bottle sleeve and the large-circle outer bottle sleeve are sleeved into the bottle mouths of the inner bottle and the outer bottle through the automatic mechanical equipment, the pump core is sleeved into the large-circle pump core hole through the automatic mechanical equipment, the head caps are sleeved into the pump core assembled valve rods through the automatic mechanical equipment respectively, and finally the outer cover is sleeved into the outer ring sleeve of the outer diameter of the top of the large circle through the automatic mechanical equipment, so that the double-tube vacuum bottle can be assembled. Meanwhile, the inner bottle and the outer bottle are made of ultraviolet-proof low-density resin materials, the parts are connected more firmly, the matching is accurate, the bending deformation resistance is enhanced, the oxidation resistance is enhanced, and the anti-ultraviolet-ray ultraviolet-proof low-density resin bottle is convenient for users to carry, store and use.
Examples of the preparation method of the ultraviolet-proof pressure-resistant resin material are specifically as follows:
examples
80 parts of modified polyethylene, 0.1 part of light stabilizer, 0.05 part of bis (2, 6-tetramethyl-4-piperidyl) sebacate, 0.05 part of titanium oxide, 0.10 part of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 0.10 part of HDC-102 antistatic agent and 0.10 part of oleamide; and mixing the materials, granulating and packaging to obtain the modified polyethylene injection molding resin. The modified polyethylene is prepared by the following method: ethylene is used as a raw material, 1-butene is used as a comonomer, graphene oxide and hydrogen are used as chain transfer agents, SLC-S catalyst is used, diethyl aluminum chloride and tri-n-hexyl aluminum are used as cocatalysts, and the catalyst is polymerized by a gas phase process.
Examples
85 parts of modified polyethylene, 0.1 part of light stabilizer, 0.2 part of poly [1- (2' -hydroxyethyl) -2.2.6.6-tetramethyl-4-hydroxypiperidine succinate ]0.2 part of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], 0.05 part of phthalocyanine blue, 0.1 part of tris (2, 4-di-tert-butylphenyl) phosphite, 0.1 part of HDC-102 antistatic agent and 0.10 part of erucamide; and mixing the materials, granulating and packaging to obtain the modified polyethylene injection molding resin. The modified polyethylene is prepared by the following method: ethylene is used as a raw material, 1-butene is used as a comonomer, graphene oxide and hydrogen are used as chain transfer agents, SLC-S catalyst is used, diethyl aluminum chloride and tri-n-hexyl aluminum are used as cocatalysts, and the catalyst is polymerized by a gas phase process.
Examples
90 parts of modified polyethylene, 0.15 part of light stabilizer, 0.10 part of 1,3,5, tris (3, 5-di-tert-butyl, 4-hydroxybenzyl) s-triazine-2, 4,6- (1H, 3H, 5H) trione, 0.10 part of phthalocyanine green, 0.05 part of tris (2, 4-di-tert-butylphenyl) phosphite, 0.05 part of HBS-510 antistatic agent and 0.08 part of polyvinylidene fluoride resin; and mixing the materials, granulating and packaging to obtain the modified polyethylene injection molding resin. The modified polyethylene is prepared by the following method: ethylene is used as a raw material, 1-butene is used as a comonomer, graphene oxide and hydrogen are used as chain transfer agents, SLC-S catalyst is used, diethyl aluminum chloride and tri-n-hexyl aluminum are used as cocatalysts, and the catalyst is polymerized by a gas phase process.
Claims (8)
1. The utility model provides an anti ultraviolet low density double-barrelled vacuum bottle, this double-barrelled vacuum bottle includes dustcoat (1), headgear, major loop (4), pump core assemblage (6), piston (7), interior bottle (8), outer bottle (9), interior bottle (8) and outer bottle (9) adopt the resin material preparation of anti ultraviolet low density, headgear includes left headgear (2) and right headgear (3), and interior bottle symmetry sets up in outer bottle, and when the bottleneck of interior bottle buckled with the internal diameter of major loop simultaneously, the external diameter of major loop and the bottleneck lock of outer bottle, the outer snare of major loop top external diameter and dustcoat lock; the inner diameter of the bottom of the large ring (4) is symmetrically provided with an inner bottle sleeve, the large ring on the outer side of the inner bottle sleeve is provided with an outer bottle sleeve, the inner bottle sleeve of the large ring is respectively buckled with the inner diameter of the bottle mouth of the inner bottle (8), the outer bottle sleeve of the large ring is buckled with the bottle mouth of the outer bottle (9), a cover plate (5) is sleeved between the outer diameter of the bottle mouth of the inner bottle and the inner diameter of the bottle mouth of the outer bottle, a pump body and an inner plug cover of the pump core assembly (6) are respectively buckled and fixed in a pump core hole of the large ring, a valve rod of the pump core assembly extends out of the pump core hole of the large ring and is buckled and connected with a head cap, a piston (7) is respectively arranged in the inner bottle, and a through hole is arranged between the pump core holes of the large ring; the outer diameter of the inner bottle sleeve mouth of the large ring (4) is respectively provided with a raised sealing rib (402), the inner diameter of the large ring sealing rib corresponding to the bottle mouth of the inner bottle (8) is provided with an inner mouth rib (802), the sealing rib of the large ring is buckled with the inner mouth rib of the inner bottle, the outer diameter of the bottle mouth of the inner bottle is provided with an outer mouth rib (801), the inner hole of the cover plate (5) is provided with a raised sealing ring diameter (501), and the outer mouth rib of the inner bottle is buckled with the sealing ring diameter of the cover plate; the edge of the cover plate is provided with a convex buckling position (502), the outer bottle (9) corresponding to the buckling position of the cover plate is provided with a buckling hole (901), and the buckling position of the edge of the cover plate is buckled with the buckling hole of the outer bottle.
2. The ultraviolet-proof low-density double-tube vacuum bottle according to claim 1, characterized in that the inner diameter below the skirt edge of the inner plug cover of the pump core assembly (6) is buckled in the pump opening of the pump body, the skirt edge of the inner plug cover is propped against the pump opening of the pump body, the skirt edge of the inner plug cover is buckled and fixed in the pump core hole of the large ring (4), the valve needle in the pump body is sleeved into the piston, the valve needle stretches out of the pump body and is buckled with the valve rod sleeved into the inner plug cover after the valve needle stretches out of the inner plug cover, the piston is positioned between the inner diameter of the inner plug cover and the needle head of the valve needle, a spring is arranged between the top ring table of the inner plug cover and the top ring diameter of the valve rod, the joint part of the top ring table of the inner plug cover and the valve rod is provided with a convex plug sealing ring diameter, the liquid inlet of the top inner diameter of the top cap is buckled with the top inner diameter hole of the valve rod, the outer ring diameter of the top cap liquid inlet is sleeved into the gap between the inner rib (401) of the outer ring of the large ring of the pump core hole, and the liquid inlet of the pump body is provided with a spring sleeve.
3. The ultraviolet-proof low-density double-tube vacuum bottle according to claim 2, characterized in that the inner-tube ribs (401) of the large ring (4) are respectively arranged around the outer sides of the pump core holes of the large ring, inner-tube ribs which are symmetrically arranged are arranged at the large ring positions between the connected pump core holes, outer-tube inner-tube ribs which are symmetrically arranged in pairs are arranged at the large ring end corners of one side of the pump core holes, inner-tube ribs which correspond to the gaps between the inner-tube ribs and the outer-tube inner-tube ribs are arranged on the inner wall of the shell of the head cap, namely, the inner-tube ribs of the head cap are inserted into the gaps between the inner-tube ribs and the inner-tube ribs of the head cap which are symmetrically arranged in pairs.
4. The method for preparing the ultraviolet-proof low-density double-tube vacuum bottle according to claim 1, which is characterized in that the raw material components of the resin material are as follows: 80-90 parts of modified polyethylene, 0.1-0.15 part of light stabilizer, 0.05-0.15 part of antioxidant, 0.05-0.15 part of antistatic agent and 0.05-0.1 part of rheology modifier; the modified polyethylene is prepared by polymerizing ethylene serving as a raw material, 1-butene, graphene oxide serving as a comonomer, hydrogen serving as a chain transfer agent, and diethyl aluminum chloride and tri-n-hexyl aluminum serving as cocatalysts by adopting an SLC-S catalyst through a gas phase process; wherein the mol ratio of 1-butene to ethylene is 0.30-0.33, the mol ratio of graphene oxide to 1-butene is 0.1, the reaction temperature is 86-100 ℃, and the reaction pressure is 1.9-2.5MPa; the molar ratio of the hydrogen to the ethylene is 0.26-0.6; the mass ratio of the SLC-S catalyst to the prepared modified polyethylene is 0.00016; the molar ratio of diethylaluminum chloride to SLC-S catalyst was 0.3; the molar ratio of tri-n-hexylaluminum to SLC-S catalyst was 0.2.
5. The method for preparing the ultraviolet-proof low-density double-tube vacuum bottle according to claim 4, wherein the light stabilizer comprises one or more of a light shielding agent and an ultraviolet light absorber, the light shielding agent is one of titanium oxide, phthalocyanine blue or phthalocyanine green, and the ultraviolet light absorber is one or any combination of more than two of salicylates, phenones, benzotriazoles or substituted acrylonitriles.
6. The method for preparing the ultraviolet-proof low-density double-tube vacuum bottle, which is characterized in that the antioxidant is one or two of phenols and phosphites mixed in any proportion.
7. The method for preparing the ultraviolet-proof low-density double-tube vacuum bottle, according to claim 4, wherein the antistatic agent is HDC-102 antistatic agent or HBS-510 antistatic agent.
8. The method for preparing the ultraviolet-proof low-density double-tube vacuum bottle, as claimed in claim 4, wherein the rheology modifier is a self-fatty acid amide, and the fatty acid amide is one selected from stearic acid amide, oleic acid amide, erucic acid amide and distearyl ethylenediamine.
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