Pressure-resistant polymer replaceable vacuum bottle based on rotary gear buckle

Abstract

The utility model relates to a pressure-resistant high-molecular replaceable vacuum bottle based on a rotary gear buckle, which is designed for solving the technical problems that the operation structure design of the conventional similar product is complicated, and the conventional similar product is difficult to lock and fix after being rotated 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 utility model relates to a vacuum bottle, in particular to a pressure-resistant polymer replacement vacuum bottle based on a rotating buckle. Background Art

[0002] A vacuum bottle refers to a container that can isolate gas from the external temperature or isolate external bacteria. The vacuum bottles sold on the market are composed of an elliptical container in the shape of a cylinder and a piston installed at the bottom. Its working principle is to use the contraction force of a spring to prevent air from entering the bottle, creating a vacuum state, and then using atmospheric pressure to push the piston at the bottom of the bottle forward. Some existing vacuum bottles and their replacement parts are widely used in daily chemical packaging skin care products. In order to promote global environmental protection awareness and reduce the output of plastic products to protect the environment, this environmentally friendly replacement cosmetic packaging container is designed for replacement parts. The inner bottle assembly containing the contents is a replaceable part. After using up the contents, only the new inner bottle assembly needs to be replaced. After replacement, the product function can still be realized and it can be used normally, minimizing the waste rate after the overall product is used up, which conforms to the current green environmental protection 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 is August 31, 2021, and the invention name is "Lightweight Anti-static Replaceable Vacuum Bottle"; another example is the application publication number CN117508891A disclosed in the Chinese patent literature, the application publication date is February 6, 2024, and the invention name is "Ellipse Buckle Position Replacement Anti-static Polymer Vacuum Bottle"; however, the stability between the outer bottle and the large ring of the above products and similar products is poor after rotation in place, or the operation structure design is relatively complex, especially it is difficult to lock and fix immediately after rotation in place, and the component structure design needs to be further improved. Summary of the Invention

[0003] To overcome the above deficiencies, the purpose of the present utility model is to provide a pressure-resistant polymer replacement vacuum bottle based on a rotating buckle to the field, so as to solve the technical problems that the production and assembly of existing similar products are relatively inconvenient, the stability between the outer bottle and the large ring is poor after rotation in place, or the operation structure design is relatively complex, especially it is difficult to lock and fix immediately after rotation in place, and the component structure design needs to be further improved. Its 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 includes a main bottle assembly and a replacement assembly. A bottom cover is provided at the bottom of the inner bottle of the main bottle assembly. A large piston is provided in the inner bottle. A pump core assembly is provided at the top of the inner bottle. A large ring is provided at the top of the inner bottle and the top of the outer bottle in the outer bottle, which is connected by internal and external threads at the same time. The valve rod extending out of the pump core assembly is connected to the liquid inlet hole of the head cap. The replacement assembly includes another inner bottle, another bottom cover, another large piston and a replacement cap. The internal thread of the replacement cap is connected to the external thread of the mouth of the other inner bottle. The key point of the structural design is that convex anti-rotation gear columns are symmetrically provided on both sides of the mouth of the outer bottle. The anti-rotation gear columns respectively correspond to a first anti-rotation gear block and a second anti-rotation gear block on both sides of the inner bottom ring surface of the large ring. When the external spiral buckle position at the lower part of the anti-rotation gear column at the mouth of the outer bottle is screwed into the internal spiral buckle position on the inner wall of the bottom of the large ring until the bottom, the anti-rotation gear column of the outer bottle crosses the second anti-rotation gear block from the first anti-rotation gear block of the large ring and is anti-rotationally limited between the first anti-rotation gear block and the second anti-rotation gear block. The second anti-rotation gear block is higher than the first anti-rotation gear block. The internal spiral buckle position and the external spiral buckle position are 360-degree one-turn spiral structures. The head cap is a pressure-resistant polymer head cap.

[0005] One side of the inner bottom ring surface of the large ring is provided with an air hole. The inner sleeve body at the position where the first internal thread of the large ring is provided is lower than the outer ring mouth. At the same time, equidistantly distributed reinforcing ribs are provided on the outer diameter of the inner sleeve body at the bottom of the large ring. The inner wall of the ring mouth of the large ring is provided with a second internal thread. The second internal thread may be the internal spiral buckle position. The first internal thread of the large ring is connected to the first external thread at the top of the inner bottle mouth. The second internal thread of the large ring is connected to the second external thread at the top of the outer bottle mouth. The second external thread of the outer bottle may be the external spiral buckle position. The groove ring at the inner diameter of the cover mouth of the outer cover is buckled with the outer diameter convex buckle point above the step groove at the middle outer diameter of the large ring. The outer cover, the large ring and the outer bottle are integrally cylindrical. When the head cap is pressed, the cap mouth at the bottom of the head cap is sleeved into the top ring groove at the air hole of the large ring. Convex ribs are equidistantly provided on the inner wall of the cap mouth of the head cap. The above-mentioned second internal thread may also adopt the existing internal thread structure, and the second external thread may also adopt the existing external thread structure.

[0006] The two reinforcing ribs on one side of the large ring are positioning ribs. A convex positioning column is provided on one side of the top ring surface of the inner bottle below the connection between the first internal thread of the large ring and the external thread of the top of the inner bottle mouth. When the first internal thread of the large ring is connected to the external thread of the top of the inner bottle mouth to the bottom, the positioning column of the inner bottle crosses one of the positioning ribs and is anti-rotationally limited between the two positioning ribs.

[0007] On one side of the inner diameter of the replacement cap corresponding to the replacement component of the positioning post of the inner bottle, there are two positioning ribs. When the inner threaded sleeve of the replacement cap is threadedly connected to the outer thread of the top bottle mouth of the inner bottle to the bottom, the inner diameter of the bottle mouth at the top of the inner bottle is hermetically sleeved with the sleeve rib of the replacement cap, and the positioning post of the inner bottle crosses one of the positioning ribs and is rotationally stopped and limited between the two positioning ribs.

[0008] When the outer diameter of the pump body of the assembled pump core is convex at the joint with the inner plug and is buckled and fixed to the convex clamping groove at the center hole of the top of the large ring, there is a sealing groove below the clamping groove of the large ring, and the sealing groove is buckled with the sealing rib below the protruding pump port of the pump body. The gasket is arranged on the limiting surface above the first internal thread of the large ring.

[0009] A spring is arranged in the chamber between the outer diameter of one end of the valve rod extending out of the pump body of the assembled pump core and the outer plug port protruding from the top of the inner plug. The outer diameter spring chamber of the valve rod is sleeved downward with the outer plug port protruding from the top of the inner plug to form the chamber for arranging the spring. When the valve needle in the pump head is buckled with the other end of the valve rod, a small piston is arranged on the outer diameter of the buckling part of the valve needle, and the outer diameter of the small piston in the pump body abuts against the inner wall of the pump body for sealing. A spring sleeve is arranged in the groove at the inner hole of the pump body below the valve needle.

[0010] When the ring rib on the outer diameter of the top cover opening of the bottom cover is buckled and fixed to the rib groove on the inner diameter of the bottom bottle mouth of the inner bottle, the protruding edge on the outer diameter of the bottom of the bottom cover abuts and is limited to the bottle mouth at the bottom of the inner bottle. A through hole is arranged 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] At the top inside of the cover opening of the replacement cap, there is a protrusion lower than the inner threaded sleeve with an outer diameter cover opening. At the top inside of the inner threaded sleeve, there is a protruding sleeve rib. When the inner threaded sleeve of the replacement cap is threadedly connected to the outer thread of the top bottle mouth of the inner bottle of the replacement component to form a cylindrical shape, the inner diameter of the bottle mouth at the top of the inner bottle is hermetically sleeved with the sleeve rib of the replacement cap.

[0012] The structure of the utility model is reasonably designed, convenient to use and produce, and convenient to replace and use the replacement component. In particular, the stability is better after the outer bottle is installed in place; it is suitable for being used as a pressure-resistant polymer replacement vacuum bottle based on a rotary buckle and the structural improvement of its similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic cross-sectional structure view of the regular assembly component of the utility model.

[0014] Figure 2 is Figure 1 a schematic bottom view structure of the large ring of

[0015] Figure 3 is Figure 1 a schematic cross-sectional view structure of the large ring of

[0016] Figure 4Yes Figure 1 Front view structure schematic diagram of the large circle

[0017] Figure 5 Yes Figure 1 Partial sectional view structure schematic diagram of the assembled state of the nozzle assembly and the inner bottle assembly

[0018] Figure 6 Yes Figure 5 Stereo structure schematic diagram of the assembled state of the outer bottle

[0019] Figure 7 Explosion structure schematic diagram of the replacement assembly of the present utility model

[0020] Figure 8 Yes Figure 7 Post-assembly sectional view structure schematic diagram

[0021] Figure 9 Yes Figure 1 Improved structure schematic diagram

[0022] Figure 10 Yes Figure 9 Sectional view structure schematic diagram of the application of the improved structure in the replacement assembly

[0023] Figure reference numbers and names: 1. Outer cover, 2. Head cap, 3. Pump core assembly, 4. Gasket, 5. Large circle, 501. Clamping groove, 502. Sealing groove, 503. Limiting surface, 504. Buckling point, 505. First internal thread, 506. Internal spiral buckling position, 507. First anti-rotation gear block, 508. Second anti-rotation gear block, 509. Air hole, 6. Outer bottle, 601. Outer spiral buckling position, 602. Anti-rotation gear post, 7. Inner bottle, 701. Positioning post, 8. Large piston, 9. Bottom cover, 10. Replacement cover, 1001. Internal thread sleeve, 1002. Sleeve rib Embodiment

[0024] Now in combination with the attached drawings, the structure of the present utility model will be further described. As Figures 1 - 8As shown, the replacement vacuum bottle includes a main bottle assembly and a replacement bottle assembly. At the bottom of the inner bottle 7 of the main bottle assembly, there is a bottom cover 9. A large piston 8 is provided in the inner bottle. At the top of the inner bottle, there is a pump core assembly 3. At the top of the inner bottle and the top of the outer bottle 6, there is a large ring 5 connected by internal and external threads at the same time. The valve stem extending out of the pump core assembly is connected to the liquid inlet hole of the head cap 2. The replacement bottle assembly includes another inner bottle, another bottom cover, another large piston and a replacement cap 10. The internal thread of the replacement cap is connected to the external thread of the mouth of the other inner bottle. At the same time, on both sides of the mouth of the outer bottle, there are symmetrically protruding anti-rotation gear columns 602. The anti-rotation gear columns respectively correspond to the first anti-rotation gear block 507 and the second anti-rotation gear block 508 on both sides of the inner bottom surface of the large ring. When the external spiral snap position 601 below the anti-rotation gear column at the mouth of the outer bottle is screwed into the internal spiral snap position 506 on the inner wall of the bottom of the large ring until the bottom, the anti-rotation gear column of the outer bottle passes over the second anti-rotation gear block from the first anti-rotation gear block of the large ring and is anti-rotationally limited between the first anti-rotation gear block and the second anti-rotation gear block. The second anti-rotation gear block is higher than the first anti-rotation gear block. The internal spiral snap position and the external spiral snap position are 360-degree one-turn spiral structures. On one side of the inner bottom surface of the large ring, there is an air hole 509. The inner sleeve body at the position where the large ring is provided with the first internal thread 505 is lower than the outer ring mouth. At the same time, on the outer diameter of the inner sleeve body at the bottom of the large ring, there are equally spaced reinforcing ribs. On the inner wall of the ring mouth of the large ring, there is a second internal thread. The second internal thread is the internal spiral snap position or the existing internal thread structure. The first internal thread of the large ring is connected to the first external thread at the top of the inner bottle. The second internal thread of the large ring is connected to the second external thread at the top of the outer bottle. The second external thread of the outer bottle is the external spiral snap position or the existing external thread structure. 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 ring. The outer cover, the large ring and the outer bottle are integrally cylindrical. When the head cap is pressed, the cap mouth at the bottom of the head cap is sleeved into the top ring groove at the air hole of the large ring. The inner wall of the cap mouth of the head cap is equally spaced with convex ribs.

[0025] While the outer diameter of the pump body of the above-mentioned pump core assembly at the joint with the inner plug bulges and is buckled and fixed at the raised clamping groove 501 at the center hole of the top of the large ring, a sealing groove 502 is provided below the clamping groove of the large ring, and the sealing groove is buckled with the sealing rib below the raised pump port of the pump body. The gasket is arranged on the limiting surface 503 above the first internal thread of the large ring. A spring is arranged in the chamber between the outer diameter of one end of the valve rod extending out of the pump body of the pump core assembly and the outer plug port protruding from the top of the inner plug. The spring chamber with a downward outer diameter of the valve rod is sleeved with the outer plug port protruding from the top of the inner plug to form the chamber for arranging the spring. While the valve needle in the pump head is buckled with the other end of the valve rod, 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 abuts against the inner wall of the pump body for sealing, and a spring sleeve is arranged in the groove at the inner hole of the pump body below the valve needle. While the ring rib on the outer diameter of the top cover port of the bottom cover is buckled and fixed at the rib groove of the inner diameter of the bottle mouth at the bottom of the inner bottle, the protruding edge on the outer diameter of the bottom of the bottom cover abuts against and limits the bottle mouth at the bottom of the inner bottle. A through hole is provided on one side of the bottom plane of the bottom cover, and two symmetrically arranged notches are provided at the top cover port of the bottom cover.

[0026] The top of the inner part of the cover port of the above-mentioned replacement cover is provided with a protrusion and an internal thread sleeve 1001 lower than the outer diameter of the cover port. The top of the internal thread sleeve is provided with a protruding sleeve rib 1002. While the internal thread sleeve of the replacement cover is threadedly connected to the external thread of the top bottle mouth of the inner bottle of the replacement assembly to form a cylinder, the inner diameter of the bottle mouth at the top of the inner bottle is hermetically sleeved with the sleeve rib of the replacement cover.

[0027] According to the above structural characteristics, as Figure 9 shown, further, the two reinforcing ribs on one side of the large ring are positioning ribs. A protruding positioning post 701 is provided on one side of the top ring surface of the inner bottle below the connection between the first internal thread of the large ring and the external thread of the top bottle mouth of the inner bottle. When the first internal thread of the large ring is threadedly connected to the external thread of the top bottle mouth of the inner bottle to the bottom, the positioning post of the inner bottle crosses one of the positioning ribs and is stopped and limited between the two positioning ribs. As Figure 10 shown, the two positioning ribs are provided on the inner diameter side of the replacement cover corresponding to the positioning post of the inner bottle of the replacement assembly. When the internal thread sleeve of the replacement cover is threadedly connected to the external thread of the top bottle mouth of the inner bottle to the bottom, the inner diameter of the bottle mouth at the top of the inner bottle is hermetically sleeved with the sleeve rib of the replacement cover, and the positioning post of the inner bottle crosses one of the positioning ribs and is stopped and limited between the two positioning ribs.

[0028] The assembly method of the replacement vacuum bottle is as follows, including the assembly of the regular package and the replacement package; among them, the assembly of the regular package is as follows: 1) Assembly of the nozzle: The pump core assembly is pressed in from above the large ring. The outer diameter bulge at the buckling part of the pump body of the pump core assembly and the clamping groove 501 of the large ring are in place for snap-fit. The sealing rib at the pump body of the pump core assembly and the sealing groove 502 of the large ring are in interference sealing fit; the gasket is inserted from below the bottom ring surface of the large ring and pressed in place. The gasket is in interference fit with the top pump port ring surface of the pump body of the pump core assembly. At the same time, the gasket is in contact with the large ring; the snap-fit at the liquid inlet hole of the head cap and the inner diameter of the rod port at the valve stem of the pump core assembly are inserted for sealing fit; the inner diameter groove ring at the cover opening of the outer cover and the snap-fastening point 504 of the large ring are in place for snap-fit, that is, the assembly of the nozzle is completed. 2) Assembly of the inner bottle: The piston is inserted from the lower opening of the inner bottle. The sealing rib of the large piston is in interference sealing fit with the inner wall of the inner bottle. Then the bottom cover is inserted from the lower bottle mouth of the inner bottle. The ring rib of the bottom cover and the rib groove of the inner bottle are in place for snap-fit, that is, the assembly of the inner bottle is completed. 3) Assembly of the finished product: The first internal thread 505 of the nozzle assembly is screwed into the external thread at the top bottle mouth of the inner bottle assembly to the bottom. The gasket is in interference sealing fit with the top bottle mouth of the inner bottle. After the nozzle assembly and the inner bottle assembly are assembled, the inner spiral snap-fit 506 of its large ring is then screwed into the outer spiral snap-fit 601 of the outer bottle to the bottom. The anti-rotation gear post 602 of the outer bottle is snapped into the space between the first anti-rotation gear block 507 and the second anti-rotation gear block 508 of the large ring. The first anti-rotation gear block 507 plays a role in the snap-in feel, and the second anti-rotation gear block 508 plays a role in anti-rotation positioning, that is, the assembly of the genuine product is completed.

[0029] The assembly of the replacement package is as follows: The internal thread 1001 of the replacement cap is screwed into the external thread at the top bottle mouth of the inner bottle of the inner bottle assembly to the bottom. The sleeve rib 1002 of the replacement cap is in interference sealing fit with the inner diameter of the bottle mouth at the top of the inner bottle and is sealed, that is, the assembly of the replacement package is completed.

[0030] The installation steps of the above replacement package components are shown as follows: After the product content is used up, rotate the large ring. The inner spiral snap-fit 506 of the large ring is separated from the outer spiral snap-fit 601 of the outer bottle. Then unscrew the inner bottle assembly, replace it, and after the replacement is completed, install it again, that is, the replacement of the product is completed.

[0031] The above-mentioned high-voltage resistant polymer headgear, the composition and weight ratio of the high-voltage resistant polymer material of the high-voltage resistant polymer headgear are as follows: 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 polyether ether ketone, 3 - 1 part of filler, 2 - 1 part of plasticizer, 2 - 1 part of coupling agent, 2 - 1 part of impact resistant agent, 1 - 0.5 part of antistatic agent, 1 - 0.5 part of antioxidant, 1 - 0.5 part of antibacterial agent, and the antibacterial agent is nano silver; 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 h to obtain a polymer; then graphene oxide is added to the polymer and ultrasonically dispersed for 10 - 15 min to form a uniform dispersion liquid, stirred at room temperature for 3 - 5 h, separated, filtered, washed, and dried to obtain a high-voltage resistant polymer base material; then the high-voltage 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 extruded, cooled, and pelletized to obtain a high-voltage 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) has symmetrically provided protruding stop posts (602) on both sides of the bottle mouth, and the stop posts correspond to the first stop blocks (507) and the second stop blocks (508) on both sides of the inner bottom ring surface of the large ring (5). When the outer spiral buckle position (601) below the stop 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 ring to the bottom, the stop post of the outer bottle passes from the first stop block of the large ring to the second stop block, and the stop limit is located between the first stop block and the second stop block, and the second stop block is higher than the first stop block; the inner spiral buckle position and the outer spiral buckle position are a 360-degree spiral structure, and the head cap is a pressure-resistant polymer head cap.

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 fits 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, 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.

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