Pressure-resistant high-molecular replaceable vacuum bottle based on rotary gear buckle and preparation method of pressure-resistant high-molecular replaceable vacuum bottle

Abstract

The invention relates to a pressure-resistant polymer replaceable vacuum bottle based on a rotary gear buckle and a preparation method of the pressure-resistant polymer replaceable vacuum bottle. The pressure-resistant polymer replaceable vacuum bottle is designed for solving the technical problems that an existing similar product is relatively complex in operation structure design and relatively difficult to lock and fix after rotating in place. The replaceable vacuum bottle is characterized in that the replaceable vacuum bottle comprises a forward assembly and a replaceable assembly, protruding rotation stopping gear columns are symmetrically arranged on the two sides of a bottle opening of an outer bottle of the forward assembly, and the rotation stopping gear columns correspond to a first rotation stopping gear block and a second rotation stopping gear block on the two sides of the inner bottom ring face of a large ring respectively; when an outer spiral buckle position below a rotation stopping gear column at a bottle opening of the outer bottle is screwed into an inner spiral buckle position on the inner wall of the inner bottom of the large ring to the bottom, the rotation stopping gear column of the outer bottle crosses a second rotation stopping gear block from a first rotation stopping gear block of the large ring and is limited between the first rotation stopping gear block and the second rotation stopping gear block in a rotation stopping mode. The second rotation stopping gear block is higher than the first rotation stopping gear block; the inner spiral buckle position and the outer spiral buckle position are each of a 360-degree one-circle spiral structure.

Description

Technical Field

[0001] The invention relates to a vacuum bottle, in particular to a pressure-resistant polymer replacement vacuum bottle based on a rotary buckle and a preparation method thereof. Background Art

[0002] A vacuum bottle refers to a container that can isolate gas from the outside temperature or isolate external bacteria. The vacuum bottles sold on the market are composed of a cylindrical or ellipsoidal container and a piston placed at the bottom. Its working principle is to use the contraction force of the spring and prevent air from entering the bottle to create a vacuum state, and use atmospheric pressure to push the piston at the bottom of the bottle forward. Some vacuum bottles and their replacements are widely used in daily chemical packaging and skin care products. In order to promote global environmental awareness, reduce the output of plastic products and protect the environment, this environmentally friendly replacement cosmetic packaging container is designed as a replacement, and the inner bottle component that loads the contents is a replacement part. When the contents are used up, only the new inner bottle component needs to be replaced. After replacement, the product function can still be realized and can be used normally, minimizing the overall product discard rate after use, which is in line with today's green environmental awareness. The replacement structure of existing vacuum bottle products, such as the application publication number CN113317608A disclosed in the Chinese patent literature, the application publication date 2021.08.31, the invention name "Lightweight anti-static replaceable vacuum bottle and its preparation method"; another example is the application publication number CN117508891A disclosed in the Chinese patent literature, the application publication date 2024.02.06, the invention name "Replacement of anti-static polymer vacuum bottle based on elliptical buckle position and its preparation method"; however, the above-mentioned products and similar products have poor stability after the outer bottle and the large circle are rotated into place, or the operating structure design is relatively complicated, especially it is difficult to lock and fix after rotating into place, and the component structure design needs to be further improved. Summary of the invention

[0003] To overcome the above shortcomings, the purpose of the present invention is to provide a pressure-resistant polymer replacement vacuum bottle based on a rotating buckle and a preparation method thereof to the art, so as to solve the technical problems that the existing similar products are inconvenient to produce and assemble, the stability between the outer bottle and the large ring is poor after being rotated into place, or the operation structure design is relatively complex, especially it is difficult to lock and fix after being rotated into place, and the component structure design needs to be further improved, and the components are difficult to produce and prepare using pressure-resistant polymer materials. The purpose is achieved through the following technical solutions.

[0004] A pressure-resistant polymer replacement vacuum bottle based on a rotating buckle, the replacement vacuum bottle comprises a regular assembly and a replacement assembly, the regular assembly having a bottom cover at the bottom bottle mouth of an inner bottle, a large piston in the inner bottle, a pump core assembly at the top bottle mouth of the inner bottle, a large circle connected by internal and external threads at the top bottle mouth of the inner bottle and the top bottle mouth of the outer bottle in an outer bottle, a valve stem extending out of the pump core assembly is connected to the liquid inlet hole of a head cap; the replacement assembly comprises another inner bottle, another bottom cover, another large piston and a replacement cover, the internal thread of the replacement cover is connected to the external thread of the bottle mouth of the other inner bottle and the internal thread of the replacement cover. The key point of its structural design is that raised stop-rotation gear posts are symmetrically provided on both sides of the bottle mouth of the outer bottle, and the stop-rotation gear posts correspond to the first stop-rotation gear blocks and the second stop-rotation gear blocks on both sides of the inner bottom ring surface of the large circle respectively. When the outer spiral buckle position below the stop-rotation gear post at the bottle mouth of the outer bottle is screwed into the inner spiral buckle position of the inner wall of the bottom of the large circle to the bottom, the stop-rotation gear post of the outer bottle passes over the second stop-rotation gear block from the first stop-rotation gear block of the large circle, and the stop limit is between the first stop-rotation gear block and the second stop-rotation gear block, and the second stop-rotation gear block is higher than the first stop-rotation gear block; the inner spiral buckle position and the outer spiral buckle position are a 360-degree spiral structure.

[0005] An air hole is provided on one side of the inner bottom ring surface of the large circle. The inner sleeve body at the first inner thread of the large circle is lower than the outer ring opening. At the same time, the outer diameter of the inner sleeve body at the inner bottom of the large circle is provided with equidistantly distributed reinforcing ribs. The inner wall at the ring opening of the large circle is provided with a second inner thread. The second inner thread may be the inner spiral buckle position. The first inner thread of the large circle is connected to the first outer thread at the top bottle opening of the inner bottle. The second inner thread of the large circle is connected to the second outer thread at the top bottle opening of the outer bottle. The second outer thread of the outer bottle may be the outer spiral buckle position; the groove ring at the inner diameter of the cover opening of the outer cover is buckled with the outer diameter convex buckle point above the step groove of the middle outer diameter of the large circle. The outer cover, the large circle and the outer bottle are cylindrical in one body; when the head cap is pressed, the cap opening at the bottom of the head cap is inserted into the top ring groove at the air hole of the large circle, and the inner wall of the cap opening of the head cap is provided with convex ribs at equal intervals. The above-mentioned second inner thread can also adopt the existing inner thread structure, and the second outer thread can also adopt the existing outer thread structure.

[0006] The two reinforcing ribs on one side of the large circle are positioning ribs, and a raised positioning column is provided on one side of the top circle surface of the inner bottle below the connection between the first internal thread of the large circle and the external thread of the top bottle mouth of the inner bottle. When the first internal thread of the large circle and the external thread of the top bottle mouth of the inner bottle are connected to the bottom, the positioning column of the inner bottle passes over one of the positioning ribs and the rotation limit is located between the two positioning ribs.

[0007] The positioning column of the inner bottle is provided with two positioning ribs on one side of the inner diameter of the replacement cap at the replacement assembly. When the internal thread sleeve of the replacement cap is connected to the bottom with the external thread of the top bottle mouth of the inner bottle, the inner diameter of the bottle mouth at the top of the inner bottle is sealed with the sleeve mouth rib of the replacement cap, the positioning column of the inner bottle passes over one of the positioning ribs, and the rotation limit is located between the two positioning ribs.

[0008] The outer diameter of the pump body of the pump core assembly and the inner plug are protruding and fastened to the protruding positioning groove at the center hole on the top of the large circle. At the same time, a sealing groove is provided below the positioning groove of the large circle. The sealing groove is fastened to the sealing rib below the protrusion of the pump port on the pump body, and the gasket is set on the limiting surface above the first internal thread of the large circle.

[0009] A spring is arranged in a cavity between the outer diameter of one end of the valve stem extending out of the pump body of the pump core assembly and the outer plug opening protruding from the top of the inner plug. The outer diameter spring cavity at the valve stem is downwardly fitted with the outer plug opening protruding from the top of the inner plug to form the cavity in which the spring is arranged. When the valve needle in the pump head is buckled with the other end of the valve stem, a small piston is arranged on the outer diameter of the valve needle at the buckling position. The outer diameter of the small piston in the pump body is sealed against the inner wall of the pump body, and an elastic sleeve is arranged in the groove at the orifice in the pump body below the valve needle.

[0010] The ring ribs of the outer diameter of the top cover opening of the bottom cover are buckled and fixed to the rib grooves of the inner diameter of the bottle opening at the bottom of the inner bottle. At the same time, the raised edge of the outer diameter of the bottom cover abuts against the bottle opening at the bottom of the inner bottle. A through hole is provided on one side of the bottom plane of the bottom cover, and notches are symmetrically arranged in pairs at the top cover opening of the bottom cover.

[0011] The inner top of the cover opening of the replacement cap is provided with an internal threaded sleeve which is raised and lower than the outer diameter cover opening, and the inner top of the internal threaded sleeve is provided with a raised sleeve opening rib. The internal threaded sleeve of the replacement cap is connected to the external thread of the bottle opening at the top of the inner bottle of the replacement assembly in a cylindrical shape, and the inner diameter of the bottle opening at the top of the inner bottle is sealed with the sleeve opening rib of the replacement cap.

[0012] The head cap is a pressure-resistant polymer head cap, and the components and weight ratio of the pressure-resistant polymer material of the pressure-resistant polymer head cap are: 90-60 parts of polyethylene, 30-10 parts of polypropylene, 20-10 parts of polyacrylate, 10-8 parts of silicone rubber, 5-2 parts of polyurethane, 5-2 parts of polyetheretherketone, 3-1 parts of filler, 2-1 parts of plasticizer, 2-1 parts of coupling agent, 2-1 parts of impact resistance agent, 1-0.5 parts of antistatic agent, 1-0.5 parts of antioxidant, 1-0.5 parts of antibacterial agent, and the antibacterial agent is nano silver; the above raw materials are mixed into ethanol. The mixture is mixed evenly, and then an initiator is added, wherein the initiator is ammonium persulfate, the temperature is raised to 80-90° C., and stirred for 1-2 hours to obtain a polymer; then graphene oxide is added to the polymer mixture, ultrasonically dispersed for 10-15 minutes to form a uniform dispersion, stirred at room temperature for 3-5 hours, separated, filtered, washed, and dried to obtain a pressure-resistant polymer base material; then the pressure-resistant polymer base material is added to a twin-screw extruder, the main screw speed of the twin-screw extruder is 60-120 rpm, melt extruded, cooled, and pelletized to obtain a pressure-resistant polymer material.

[0013] The invention has a reasonable structural design, is easy to use and produce, is easy to replace and use, has good material performance, and a feasible production method. In particular, the outer bottle has good stability after being installed in place. It is suitable as a pressure-resistant polymer replacement vacuum bottle based on a rotating buckle, and a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the upright assembly of the present invention.

[0015] Figure 2 yes Figure 1 Schematic diagram of the structure looking up at the bottom of the large circle.

[0016] Figure 3 yes Figure 1 Schematic diagram of the large circle cross-sectional structure.

[0017] Figure 4 yes Figure 1 Schematic diagram of the main view structure of the big circle.

[0018] Figure 5 yes Figure 1 A partial cross-sectional structural diagram of the nozzle assembly and the inner bottle assembly in the assembled state.

[0019] Figure 6 yes Figure 5 Schematic diagram of the three-dimensional structure of the outer bottle assembly state.

[0020] Figure 7 It is a schematic diagram of the exploded structure of the replacement assembly of the present invention.

[0021] Figure 8 yes Figure 7 Schematic diagram of the sectional structure after assembly.

[0022] Fig. 9 yes Figure 1 Schematic diagram of the improved structure.

[0023] Fig.10 yes Fig. 9 A schematic cross-sectional view of the improved structure used in a replacement assembly.

[0024] Serial numbers and names of the accompanying drawings: 1. Outer cover, 2. Head cap, 3. Pump core assembly, 4. Gasket, 5. Large circle, 501. Positioning groove, 502. Sealing groove, 503. Limiting surface, 504. Protruding buckle point, 505. First internal thread, 506. Internal spiral buckle position, 507. First anti-rotation gear block, 508. Second anti-rotation gear block, 509. Air hole, 6. Outer bottle, 601. External spiral buckle position, 602. Anti-rotation gear column, 7. Inner bottle, 701. Positioning column, 8. Large piston, 9. Bottom cover, 10. Replacement cover, 1001. Internal thread sleeve, 1002. Sleeve mouth rib. Implementation

[0025] Now, the structure of the present invention is further described in conjunction with the accompanying drawings. Figure 1-Figure 8 As shown, the replacement vacuum bottle includes a regular component and a replacement component, the regular component has a bottom cover 9 at the bottom bottle mouth of an inner bottle 7, a large piston 8 in the inner bottle, a pump core assembly 3 at the top bottle mouth of the inner bottle, and a large circle 5 connected by internal and external threads at the top bottle mouth of the inner bottle and the top bottle mouth of the outer bottle in the outer bottle 6, and the valve stem extending out of the pump core assembly is connected to the liquid inlet hole of the head cap 2; the replacement component includes another inner bottle, another bottom cover, another large piston and a replacement cover 10, and the internal thread of the replacement cover is connected to the external thread of the bottle mouth of the other inner bottle and the internal thread of the replacement cover. At the same time, the above-mentioned outer bottle has symmetrically provided with raised stop gear posts 602 on both sides of the bottle mouth, and the stop gear posts correspond to the first stop gear blocks 507 and the second stop gear blocks 508 on both sides of the inner bottom ring surface of the large circle respectively. When the outer spiral buckle position 601 below the stop gear post at the bottle mouth of the outer bottle is screwed into the inner spiral buckle position 506 on the inner wall of the bottom of the large circle to the bottom, the stop gear post of the outer bottle passes over the second stop gear block from the first stop gear block of the large circle, and the stop limit is between the first stop gear block and the second stop gear block, and the second stop gear block is higher than the first stop gear block; the inner spiral buckle position and the outer spiral buckle position are a 360-degree spiral structure. An air hole 509 is provided on one side of the inner bottom ring surface of the large circle. The inner sleeve body at the first internal thread 505 of the large circle is lower than the outer ring opening. At the same time, the outer diameter of the inner sleeve body at the inner bottom of the large circle is provided with equidistantly distributed reinforcing ribs, and the inner wall at the ring opening of the large circle is provided with a second internal thread, and the second internal thread is the internal spiral buckle position or the existing internal thread structure. The first internal thread of the large circle is connected with the first external thread at the top bottle mouth of the inner bottle, and the second internal thread of the large circle is connected with the second external thread at the top bottle mouth of the outer bottle, and the second external thread of the outer bottle is the external spiral buckle position or the existing external thread structure; the groove circle at the inner diameter of the cover mouth of the outer cover 1 is buckled with the outer diameter convex buckle point 504 above the step groove of the middle outer diameter of the large circle, and the outer cover, the large circle and the outer bottle are integrated into a cylindrical shape; when the head cap is pressed, the cap opening at the bottom of the head cap is inserted into the top ring groove at the air hole of the large circle, and the inner wall of the cap opening of the head cap is provided with convex ribs at equal intervals.

[0026] The outer diameter of the pump body and the inner plug of the pump core assembly is convex and is buckled and fixed to the protruding positioning groove 501 at the center hole at the top of the large circle. At the same time, a sealing groove 502 is provided below the positioning groove of the large circle. The sealing groove is buckled with the sealing rib below the protrusion of the pump port at the pump body, and the gasket is set on the limiting surface 503 above the first internal thread at the large circle. A spring is provided in the chamber between the outer diameter of one end of the valve stem extending out of the pump body of the pump core assembly and the outer plug mouth protruding at the top of the inner plug. The outer diameter spring cavity at the valve stem is downwardly sleeved with the outer plug mouth protruding at the top of the inner plug to form the chamber where the spring is provided. When the valve needle in the pump head is buckled with the other end of the valve stem, a small piston is provided on the outer diameter of the valve needle at the buckling position. The outer diameter of the small piston in the pump body is sealed against the inner wall of the pump body, and an elastic sleeve is provided in the groove at the orifice of the pump body below the valve needle. The ribs on the outer diameter of the top cover opening of the bottom cover are buckled and fixed to the rib grooves on the inner diameter of the bottom opening of the inner bottle. At the same time, the raised edge of the outer diameter of the bottom cover abuts against the bottle opening at the bottom of the inner bottle. A through hole is provided on one side of the bottom plane of the bottom cover, and notches are symmetrically arranged in pairs at the top cover opening of the bottom cover.

[0027] The inner top of the cover opening of the above-mentioned replacement cover is provided with an internal threaded sleeve 1001 which is raised and lower than the outer diameter cover opening, and the inner top of the internal threaded sleeve is provided with a raised sleeve opening rib 1002. The internal threaded sleeve of the replacement cover is connected to the external thread of the top bottle opening of the inner bottle of the replacement assembly in a cylindrical shape, and the inner diameter of the bottle opening at the top of the inner bottle is sealed with the sleeve opening rib of the replacement cover.

[0028] According to the above structural characteristics, such as Fig. 9 As shown, further, the two reinforcing ribs on one side of the large circle are positioning ribs, and a raised positioning column 701 is provided on one side of the inner bottle top circle surface below the connection between the first internal thread of the large circle and the external thread of the top bottle mouth of the inner bottle. When the first internal thread of the large circle and the external thread of the top bottle mouth of the inner bottle are connected to the bottom, the positioning column of the inner bottle passes over one of the positioning ribs and the rotation limit is located between the two positioning ribs. Fig.10 As shown, the positioning column of the above-mentioned inner bottle is provided with two positioning ribs on one side of the inner diameter of the replacement cap at the replacement assembly, and when the internal thread sleeve of the replacement cap is connected to the bottom with the external thread of the top bottle mouth of the inner bottle, the inner diameter of the bottle mouth at the top of the inner bottle is sealed with the sleeve mouth rib of the replacement cap, the positioning column of the inner bottle passes over one of the positioning ribs, and the rotation limit is located between the two positioning ribs.

[0029] The specific assembly method of the replacement vacuum bottle is as follows, including regular assembly and replacement assembly; among them, the regular assembly is as follows: 1) Assemble the nozzle, press the pump core assembly from the top of the large circle, the outer diameter protrusion of the pump body of the pump core assembly and the inner plug buckle with the buckle position of the large circle, and the sealing rib at the pump body of the pump core assembly and the sealing groove 502 of the large circle are interference-sealed; install the gasket from the bottom ring surface of the large circle and press it into place, the gasket and the top pump mouth ring surface of the pump body of the pump core assembly are interference-fitted, and the gasket is attached to the large circle; the buckle position at the liquid inlet hole of the head cap and the inner diameter of the stem mouth at the valve stem of the pump core assembly are buckled and sealed; the inner diameter groove ring at the cover mouth of the outer cover and the convex buckle point 504 of the large circle are buckled in place, and the assembly of the nozzle assembly is completed. 2) Inner bottle assembly, install the piston from the bottom of the inner bottle, the sealing rib of the large piston and the inner wall of the inner bottle are in interference sealing, then install the bottom cover from the bottom of the inner bottle, the ring rib of the bottom cover and the buckle position of the rib groove of the inner bottle are in place, and the inner bottle assembly is completed. 3) Finished product assembly, screw the first internal thread 505 of the spray head assembly into the top bottle mouth external thread of the inner bottle assembly to the bottom, the gasket and the top bottle mouth of the inner bottle are in interference sealing, after the spray head assembly and the inner bottle assembly are assembled, then screw the inner spiral buckle position 506 of the large circle into the outer spiral buckle position 601 of the outer bottle to the bottom, and the stop gear column 602 of the outer bottle is buckled between the first stop gear block 507 and the second stop gear block 508 of the large circle, the first stop gear block 507 plays a buckling feeling role, and the second stop gear block 508 plays a stop positioning role, and the genuine assembly is completed.

[0030] The replacement package is assembled as follows: screw the internal thread 1001 of the replacement package cover into the external thread of the top bottle mouth of the inner bottle of the inner bottle assembly to the bottom, and the sleeve rib 1002 of the replacement package cover is interference-sealed with the inner diameter of the bottle mouth at the top of the inner bottle and sealed, and the assembly of the replacement package is completed.

[0031] The installation steps of the above-mentioned replacement assembly are illustrated as follows: after the product contents are used up, rotate the large circle, the inner screw buckle 506 of the large circle is disengaged from the outer screw buckle 601 of the outer bottle, and then unscrew the inner bottle assembly and replace it. After the replacement is completed, put it back in to complete the product replacement.

[0032] The above-mentioned pressure-resistant polymer head cap, the composition and weight ratio of the pressure-resistant polymer material of the pressure-resistant polymer head cap are: Example 1, 90 parts of polyethylene, 30 parts of polypropylene, 20 parts of polyacrylate, 10 parts of silicone rubber, 5 parts of polyurethane, 5 parts of polyetheretherketone, 3 parts of filler, 2 parts of plasticizer, 2 parts of coupling agent, 2 parts of impact agent, 1 part of antistatic agent, 1 part of antioxidant, and 1 part of antibacterial agent; Example 2, 80 parts of polyethylene, 20 parts of polypropylene, 15 parts of polyacrylate, 9 parts of silicone rubber Parts, 3 parts of polyurethane, 3 parts of polyetheretherketone, 2 parts of filler, 2 parts of plasticizer, 1 part of coupling agent, 1 part of impact agent, 0.5 parts of antistatic agent, 0.5 parts of antioxidant, and 0.5 parts of antibacterial agent; Example three, 60 parts of polyethylene, 10 parts of polypropylene, 10 parts of polyacrylate, 8 parts of silicone rubber, 2 parts of polyurethane, 2 parts of polyetheretherketone, 1 part of filler, 1 part of plasticizer, 1 part of coupling agent, 1 part of impact agent, 0.5 parts of antistatic agent, 0.5 parts of antioxidant, and 0.5 parts of antibacterial agent. The antibacterial agent is nanosilver; the above raw materials are mixed evenly in ethanol, and then an initiator is added, the initiator is ammonium persulfate, the temperature is raised to 80-90°C, and stirred for 1-2 hours to obtain a polymer; then graphene oxide is added to the polymer mixture, ultrasonically dispersed for 10-15 minutes to form a uniform dispersion, stirred at room temperature for 3-5 hours, separated, filtered, washed, and dried to obtain a pressure-resistant polymer base material; then the pressure-resistant polymer base material is added to a twin-screw extruder, the main screw speed of the twin-screw extruder is 60-120 revolutions / min, melt extrusion, cooling, and pelletizing to obtain a pressure-resistant polymer material.

Claims

1. A pressure-resistant polymer replacement vacuum bottle based on a rotary buckle, the replacement vacuum bottle comprising a regular assembly and a replacement assembly, the regular assembly having an inner bottle (7) with a bottom cover (9) at the bottom of the bottle mouth, a large piston (8) in the inner bottle, a pump core assembly (3) at the top of the bottle mouth, an outer bottle (6) with a large ring (5) at the top of the bottle mouth of the inner bottle and the top of the bottle mouth of the outer bottle, the valve stem extending out of the pump core assembly is connected to the liquid inlet hole of the head cap (2); the replacement assembly comprises another inner bottle, another bottom cover, another large piston and a replacement cover (10), the internal thread of the replacement cover is connected to the external thread of the bottle mouth of the other inner bottle and the internal thread of the replacement cover; characterized in that The outer bottle (6) is symmetrically provided with raised stop-rotation gear posts (602) on both sides of the bottle mouth, and the stop-rotation gear posts correspond to the first stop-rotation gear blocks (507) and the second stop-rotation gear blocks (508) on both sides of the inner bottom ring surface of the large ring (5), respectively. When the outer spiral buckle position (601) below the stop-rotation gear post at the bottle mouth of the outer bottle is screwed into the inner spiral buckle position (506) on the inner wall of the inner bottom of the large ring until it stops, the stop-rotation gear post of the outer bottle passes from the first stop-rotation gear block of the large ring to the second stop-rotation gear block, and stops and limits itself between the first stop-rotation gear block and the second stop-rotation gear block, and the second stop-rotation gear block is higher than the first stop-rotation gear block; the inner spiral buckle position and the outer spiral buckle position are a 360-degree spiral structure.

2. The pressure-resistant polymer replacement vacuum bottle based on the rotary buckle according to claim 1 is characterized in that The large circle (5) is provided with an air hole (509) on one side of the inner bottom ring surface, and the inner sleeve body at the first internal thread (505) of the large circle is lower than the outer ring opening. At the same time, the outer diameter of the inner sleeve body at the inner bottom of the large circle is provided with equidistantly distributed reinforcing ribs, and the inner wall at the ring opening of the large circle is provided with a second internal thread, and the second internal thread may be the inner spiral buckle position (506). The first internal thread of the large circle is connected to the first external thread at the top bottle mouth of the inner bottle (7), and the second internal thread of the large circle is connected to the second external thread at the top bottle mouth of the outer bottle (6), and the second external thread of the outer bottle may be the outer spiral buckle position (601); the groove ring at the inner diameter of the cover mouth of the outer cover (1) is buckled with the outer diameter convex buckle point (504) above the step groove at the middle outer diameter of the large circle, and the outer cover, the large circle and the outer bottle are integrated into a cylindrical shape; when the head cap (2) is pressed, the cap opening at the bottom of the head cap is inserted into the top ring groove at the air hole of the large circle, and the inner wall of the cap opening of the head cap is provided with convex ribs at equal intervals.

3. The pressure-resistant polymer replacement vacuum bottle based on the rotary buckle according to claim 2 is characterized in that The two reinforcing ribs on one side of the large circle (5) are positioning ribs. A raised positioning column (701) is provided on one side of the top circle surface of the inner bottle below the connection between the first internal thread (505) of the large circle and the external thread of the top bottle mouth of the inner bottle (7). When the first internal thread of the large circle and the external thread of the top bottle mouth of the inner bottle are connected to the bottom, the positioning column of the inner bottle passes over one of the positioning ribs and the rotation limit is located between the two positioning ribs.

4. The pressure-resistant polymer replacement vacuum bottle based on the rotary buckle according to claim 3 is characterized in that The positioning column (701) of the inner bottle (7) is provided with two positioning ribs on one side of the inner diameter of the replacement cover (10) at the replacement assembly. When the internal thread sleeve (1001) of the replacement cover is connected to the bottom of the outer thread of the top bottle mouth of the inner bottle (7), the inner diameter of the bottle mouth at the top of the inner bottle is sealed with the sleeve rib (1002) of the replacement cover. The positioning column of the inner bottle passes over one of the positioning ribs, and the rotation limit is located between the two positioning ribs.

5. The pressure-resistant polymer replacement vacuum bottle based on the rotary buckle according to claim 1 is characterized in that The outer diameter of the pump body of the pump core assembly (3) and the inner plug are bulged and fixed to the bulged positioning groove (501) at the top center hole of the large circle (5). At the same time, a sealing groove (502) is provided below the positioning groove of the large circle. The sealing groove is buckled with the sealing rib below the bulge of the pump port on the pump body. The gasket (4) is arranged on the limiting surface (503) above the first internal thread (505) on the large circle.

6. The pressure-resistant polymer replacement vacuum bottle based on the rotary buckle according to claim 5, characterized in that A spring is arranged in a cavity between the outer diameter of one end of the valve stem extending out of the pump body of the pump core assembly (3) and the outer plug opening protruding from the top of the inner plug. The outer diameter spring cavity at the valve stem is fitted downward with the outer plug opening protruding from the top of the inner plug to form the cavity in which the spring is arranged. When the valve needle in the pump head is buckled with the other end of the valve stem, a small piston is arranged on the outer diameter of the valve needle at the buckling position. The outer diameter of the small piston in the pump body is sealed against the inner wall of the pump body. A spring sleeve is arranged in a groove at the orifice of the pump body below the valve needle.

7. The pressure-resistant polymer replacement vacuum bottle based on the rotary buckle according to claim 1 is characterized in that The ribs on the outer diameter of the top cover opening of the bottom cover (9) are buckled and fixed to the rib grooves on the inner diameter of the bottom bottle opening of the inner bottle (7). At the same time, the raised edge of the bottom outer diameter of the bottom cover abuts against the bottle opening at the bottom of the inner bottle. A through hole is provided on one side of the bottom plane of the bottom cover. Notches are symmetrically arranged in pairs at the top cover opening of the bottom cover.

8. The pressure-resistant polymer replacement vacuum bottle based on the rotary buckle according to claim 1, characterized in that The inner top of the cover opening of the replacement cover (10) is provided with an internal threaded sleeve (1001) which is raised and lower than the outer diameter of the cover opening, and the inner top of the internal threaded sleeve is provided with a raised sleeve opening rib (1002). The internal threaded sleeve of the replacement cover is connected to the external thread of the top bottle opening of the inner bottle (7) of the replacement assembly in a cylindrical shape, and the inner diameter of the bottle opening at the top of the inner bottle is sealed and sleeved with the sleeve opening rib of the replacement cover.

9. The method for preparing a pressure-resistant polymer replacement vacuum bottle based on a rotary buckle according to claim 1, characterized in that The head cap is a pressure-resistant polymer head cap, and the components and weight ratio of the pressure-resistant polymer material of the pressure-resistant polymer head cap are: 90-60 parts of polyethylene, 30-10 parts of polypropylene, 20-10 parts of polyacrylate, 10-8 parts of silicone rubber, 5-2 parts of polyurethane, 5-2 parts of polyetheretherketone, 3-1 parts of filler, 2-1 parts of plasticizer, 2-1 parts of coupling agent, 2-1 parts of impact resistance agent, 1-0.5 parts of antistatic agent, 1-0.5 parts of antioxidant, 1-0.5 parts of antibacterial agent, and the antibacterial agent is nano silver; the above raw materials are mixed into ethanol. The mixture is mixed evenly, and then an initiator is added, wherein the initiator is ammonium persulfate, the temperature is raised to 80-90° C., and stirred for 1-2 hours to obtain a polymer; then graphene oxide is added to the polymer mixture, ultrasonically dispersed for 10-15 minutes to form a uniform dispersion, stirred at room temperature for 3-5 hours, separated, filtered, washed, and dried to obtain a pressure-resistant polymer base material; then the pressure-resistant polymer base material is added to a twin-screw extruder, the main screw speed of the twin-screw extruder is 60-120 rpm, melt extrusion, cooling, and pelletizing to obtain a pressure-resistant polymer material.

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