Lightweight anti-static vacuum bottle and its material production process

Abstract

The present invention relates to a lightweight anti-static vacuum bottle and its material production process. The design addresses the technical issues of poor positioning, damping effect, and structural stability of corresponding components in existing similar products. The key points are that the middle sleeve of the vacuum bottle is fixedly mounted on the inner diameter of the bottle mouth at the bottom of the bottle body, a large piston is disposed in an upper chamber formed by the middle sleeve and the bottle body, one end of a screw abuts against the bottom of the large piston in the bottle body, and the other end of the screw passes through a special-shaped hole in the center of the middle sleeve and connects to the central threaded hole of the large ring in the bottom cover. A through hole is provided in the center of the screw, and a bottom plug is provided in the center hole of the screw at one end of the bottom cover. Positioning grooves are symmetrically arranged along both sides of the special-shaped hole in the middle sleeve, and raised bumps and ribs are symmetrically provided on both sides of the outer diameter of the threaded hole at the top of the large ring. The special-shaped hole of the middle sleeve is disposed on a raised upper sleeve of the middle sleeve, and bullet holes are symmetrically provided on the top of the upper sleeve of the middle sleeve on both sides of the special-shaped hole. Raised damping ribs are provided at the bottom of the bullet holes in the middle sleeve.

Description

Technical Field

[0001] The invention relates to a vacuum bottle, in particular to a lightweight antistatic vacuum bottle and a material production process 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. The vacuum bottles currently on the market basically have a pump structure to discharge liquid, and leakage is likely to occur due to accidental pressing of the head cap during normal carrying; for this reason, as disclosed in the Chinese patent literature, application number 201910773265.8, application publication date 2019.11.29, invention name "Rotary Mechanical Vacuum Bottle and Its Material Preparation Method"; the bottom of the outer bottle of the vacuum bottle is provided with a bottom cover, the outer bottle at the end of the bottom cover is provided with an inner plug, and the inner bottle mouth of the outer bottle is provided with a sealing and buckled pressure cap; the center of the bottom cover inside the outer bottle A screw hole is provided, and the bottom cover is fixed to the bottom of the outer bottle and rotates. The threaded rib at one end of the screw is connected to the screw hole of the bottom cover through the through hole in the center of the inner plug. A channel hole is provided at the central axis of the screw. The other end of the screw is against the bottom of the piston in the outer bottle. The plug is fastened and fixed to the center hole of the pressure cap. The outer diameter of the inner plug is against the inner wall of the outer bottle. There is a liquid outlet gap between the pressure cap and the plug at the port of the outer bottle. The piston is lifted and moved upward by the screw until the step edge ring of the inner plug is against the outer diameter of the step rib ring of the outer bottle. However, the bottom cover structure design of the above-mentioned product is poor, resulting in that it is difficult to balance the pressure below the piston in the bottle body during the downward movement of the screw, and the positioning and damping effects are poor when the bottom cover rotates to drive the screw upward. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the present invention aims to provide a lightweight antistatic vacuum bottle and its material production process to the art. This approach addresses the technical issues encountered by existing similar products, such as poor positioning and damping of the bottom cover, poor structural design for assembly stability between the middle sleeve, screw, and bottle body, and the need for improved material production processes. This objective is achieved through the following technical solution.

[0004] A lightweight anti-static vacuum bottle, the lid of the vacuum bottle includes an outer cover, an inner cover and a gasket, the inner cover is inserted into and fixed in the outer cover and connected as a whole, the center hole of the inner cover is provided with a gasket, the top of the bottle mouth is provided with a pressure cap, the center hole of the pressure cap is provided with a plug, the plug is buckled and fixed to the center hole of the pressure cap, the bottle body has a large piston, a screw, a middle sleeve, a large ring and a bottom plug, the large ring is arranged in the bottom cover at the bottom of the bottle body, the bottom cover and the large ring are buckled and connected as a whole, the middle sleeve is connected to the bottle mouth at the bottom of the bottle body The key points of its structural design are that the middle sleeve is fixed to the inner diameter of the bottle mouth at the bottom of the bottle body, the large piston is arranged in the upper chamber of the bottle body formed by the middle sleeve and the bottle body, one end of the screw is against the bottom of the large piston in the bottle body, and the other end of the screw passes through the special-shaped hole in the center of the middle sleeve and connects to the central threaded hole of the large circle in the bottom cover. The center of the screw is provided with a through hole, and the center hole of the screw at one end of the bottom cover is provided with a bottom plug; the bottom cover drives the large circle to rotate, so that the screw moves upward when rotating, and the screw drives the large piston upward. Thus, rotating the bottom cover drives the large circle to rotate together. The bottom cover and the large circle drive the screw upward, and at the same time, the large piston moves upward in the bottle body, squeezing the emulsion above the large piston in the bottle body out of the center hole of the gland. Gas enters through the bottom of the middle sleeve, and the screw can only drive the piston upward, not downward.

[0005] The middle sleeve is fixed by the middle sleeve gear ring of the bottom outer diameter and the inner diameter of the bottom bottle mouth of the bottle body, and the large circle is fixed by the large circle gear ring of the bottom outer diameter and the inner diameter of the middle circle ring of the bottom inner diameter of the bottom cover.

[0006] The inner diameter of the bottom bottle opening of the bottle body is provided with a raised bottle rack, and the inner diameter of the bottom bottle opening is provided with a bottle buckle below the bottle rack. The bottle rack of the bottle body is inserted into the middle sleeve gear ring of the middle sleeve, and the lower ring opening of the middle sleeve gear ring of the middle sleeve is buckled with the bottle buckle of the bottle body; the inner diameter of the middle ring of the bottom inner diameter of the bottom cover is provided with a raised bottom cover rack, and the inner diameter ring opening of the middle ring above the bottom cover rack is provided with a bottom cover buckle. The bottom cover rack of the bottom cover is inserted into the large ring gear ring of the large ring, and the upper ring opening of the large ring gear ring of the large ring is buckled with the bottom cover buckle. The above structure further strengthens the fixation between the bottle body and the middle sleeve, and between the bottom cover and the large ring.

[0007] The screw's large piston has a platform at one end, through which the screw contacts the support rib groove at the bottom of the large piston. The screw's stem is rectangular, with oblique threaded ribs symmetrically arranged on both sides of the outer diameter of the other end. Open U-shaped grooves are located on the other two sides of the screw, and the through-hole in the center of the screw is a waist-shaped hole. The length of the special-shaped hole in the middle sleeve is greater than the length of the rectangular side of the screw, and the width of the special-shaped hole in the middle sleeve is equal to the width of the rectangular side of the screw. The screw's stem and the special-shaped hole in the middle sleeve are correspondingly positioned. This structure facilitates the sound of the screw passing through the gear during movement, making it easier for the user to determine the amount of liquid to be discharged by determining the gear position. The U-shaped groove in the screw facilitates assembly and production of the screw.

[0008] The screw has symmetrical positioning ribs on either side of the chamfered step between the platform bottom and the stem. Positioning grooves are symmetrically positioned along the edges of the irregularly shaped hole in the sleeve, corresponding to the screw positioning ribs. The screw positioning ribs fit into the positioning grooves in the sleeve. This structure facilitates initial positioning of the vacuum bottle and positioning during assembly.

[0009] The threaded hole at the top of the large ring is symmetrically marked with raised bumps and ribs on either side of its outer diameter. One side of the rib serves as a guide bevel. The screw's positioning ribs, through the positioning grooves of the middle sleeve, engage the threaded hole in the large ring for positioning. This structure further enhances the vacuum bottle's initial positioning and provides a more comfortable damping effect during use.

[0010] The special-shaped hole of the middle sleeve is set in the raised upper sleeve of the middle sleeve. Bullet holes are symmetrically arranged on the top plane of the middle sleeve upper sleeve on both sides of the special-shaped hole. The middle sleeve gear ring of the middle sleeve is set on the outer diameter of the lower sleeve of the middle sleeve. The outer diameter of the middle sleeve upper sleeve is provided with evenly and equidistantly connected convex and concave surfaces. The convex surface at the step chamfer of the outer diameter between the upper sleeve and the lower sleeve of the middle sleeve is provided with triangular reinforcing ribs. The above structure facilitates the enhancement of the structural strength of the middle sleeve and the stabilization of the pressure in the chamber below the middle sleeve.

[0011] The bottom of the bullet hole in the middle sleeve is provided with a raised damping rib, and the outer diameter plane of the threaded hole at the top of the large ring is provided with damping teeth. The damping rib of the middle sleeve and the damping teeth of the large ring are positioned in an interference fit. This structure facilitates further strengthening the gear shift sound when the bottom cover drives the large ring to rotate.

[0012] The bottom edge of the inner diameter groove on the convex surface of the upper sleeve of the middle sleeve is provided with a raised locking rib. The limiting ring at the top of the large ring is fitted over the chamfered portion of the inner step of the middle sleeve. At the same time, the locking rib of the middle sleeve is engaged with the locking ring of the large ring at the limiting step of the large ring. This structure facilitates the fitting and fixing of the middle sleeve and the large ring, preventing them from coming out of contact.

[0013] The invention has reasonable structural design, is easy to use and carry, has good sealing and stability, has good preparation material performance, and is feasible in production method; it is suitable for use as a cylindrical rotary squeeze-push vacuum bottle and is a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of the lid open state.

[0016] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure.

[0017] Figure 4 It is a schematic diagram of a partial explosion structure of the present invention, in which the plug, large circle, bottom plug and bottom cover are omitted.

[0018] Figure 5 It is a schematic diagram of the explosion structure among the screw, middle sleeve, large ring, bottom plug and bottom cover of the present invention.

[0019] Serial number and name of the accompanying drawings: 1. Outer cover, 2. Inner cover, 3. Gasket, 4. Pressure cap, 5. Plug, 6. Bottle body, 601. Bottle body rack, 602. Bottle body buckle ring, 7. Large piston, 701. Support rib, 8. Screw, 801. Platform, 802. Oblique thread rib, 803. Positioning rib, 9. Middle sleeve, 901. Middle sleeve gear ring, 902. Special-shaped hole, 903. Positioning groove, 904. Bullet hole, 905. Buckling rib, 10. Large circle, 1001. Large circle gear ring, 1002. Large circle buckle ring, 1003. Damping tooth, 1004. Bump, 1005. Bump, 11. Bottom plug, 12. Bottom cover, 1201. Bottom cover rack, 1202. Bottom cover buckle ring. DETAILED DESCRIPTION

[0020] Now, the structure of the present invention will be further described in conjunction with the accompanying drawings. Figure 1-Figure 5 As shown, the lid of the vacuum bottle includes an outer lid 1, an inner lid 2, and a gasket 3. The inner lid is inserted and fixed into the outer lid and connected as a whole. The center hole of the inner lid is provided with a gasket. The top of the bottle body 6 is provided with a pressure cap 4, and the center hole of the pressure cap is provided with a plug 5, which is fixed to the center hole of the pressure cap. The bottle body includes a large piston 7, a screw 8, a middle sleeve 9, a large ring 10, and a bottom plug 11. The large ring is set in the bottom cover 12 at the bottom of the bottle body. The bottom cover and the large ring are connected as a whole. The middle sleeve is fixed to the bottom of the bottle body. The large piston is set in the upper chamber formed by the middle sleeve and the bottle body. One end of the screw is against the bottom of the large piston in the bottle body. The other end of the screw passes through the special-shaped hole 902 in the center of the middle sleeve and is connected to the center threaded hole of the large ring in the bottom cover. The center of the screw is provided with a through hole, and a bottom plug is provided in the center hole of the screw at one end of the bottom cover. The bottom cover of the vacuum bottle drives the large circle to rotate, so that the screw moves upward when rotating, and the screw drives the large piston to move upward; that is, the rotation of the bottom cover drives the large circle to rotate together, and the bottom cover and the large circle drive the screw to move upward and at the same time drive the large piston to move upward in the bottle body, squeezing the emulsion above the large piston in the bottle body out of the center hole of the pressure cover.

[0021] The above-mentioned middle sleeve is fixed with the inner diameter of the bottom bottle mouth of the bottle body through the middle sleeve gear ring 901 of the bottom outer diameter, and the large circle is fixed with the inner diameter of the middle ring of the bottom inner diameter of the bottom cover through the large circle gear ring 1001 of the bottom outer diameter; at the same time, the inner diameter of the bottom bottle mouth of the bottle body is provided with a raised bottle rack 601, and the inner diameter of the bottom bottle mouth below the bottle rack is provided with a bottle buckle ring 602, the bottle rack of the bottle body is inserted into the middle sleeve gear ring of the middle sleeve, and the lower ring opening of the middle sleeve gear ring of the middle sleeve is buckled with the bottle buckle ring of the bottle body; the inner diameter of the middle ring of the bottom inner diameter of the bottom cover is provided with a raised bottom cover rack 1201, and the inner diameter ring opening of the middle ring above the bottom cover rack is provided with a bottom cover buckle ring 1202, the bottom cover rack of the bottom cover is inserted into the large circle gear ring of the large circle, and the upper ring opening of the large circle gear ring of the large circle is buckled with the bottom cover buckle ring of the bottom cover. A platform 801 is provided at one end of the screw's large piston. The platform allows the screw to contact the grooves at the support ribs 701 at the bottom of the large piston. The screw's shank is rectangular, with oblique threaded ribs 802 symmetrically arranged on either side of the outer diameter of the other end. Open U-shaped grooves are provided on the other two sides of the screw, and the through-hole in the center of the screw is a waist-shaped hole. The length of the special-shaped hole in the middle sleeve is greater than the length of the rectangular side of the screw, and the width of the special-shaped hole in the middle sleeve is equal to the width of the rectangular side of the screw. The screw's shank and the special-shaped hole in the middle sleeve are correspondingly positioned. Positioning ribs 803 are symmetrically provided on either side of the chamfered step between the bottom of the screw's platform and the shank. Positioning grooves 903 are symmetrically arranged on both sides of the edge of the special-shaped hole in the middle sleeve corresponding to the screw's positioning ribs. The screw's positioning ribs fit into the positioning grooves of the middle sleeve. The outer diameter of the threaded hole at the top of the large circle is symmetrically provided with raised bumps 1004 and ribs 1005. One side of the rib is an inlet bevel. The positioning rib of the screw is against the threaded hole of the large circle through the positioning groove of the middle sleeve.

[0022] The special-shaped holes in the middle sleeve are located in the raised upper sleeve of the middle sleeve. Symmetrical bullet holes 904 are located on the top plane of the middle sleeve upper sleeve on either side of the special-shaped holes. The middle sleeve gear ring is located on the outer diameter of the middle sleeve lower sleeve. The outer diameter of the middle sleeve upper sleeve is equipped with evenly spaced convex and concave surfaces. The convex surface of the step chamfer between the upper sleeve and the lower sleeve is equipped with triangular reinforcing ribs. A raised damping rib is located at the bottom of the bullet hole in the middle sleeve. Damping teeth 1003 are located on the outer diameter plane of the threaded hole at the top of the large sleeve. The damping ribs of the middle sleeve and the damping teeth of the large sleeve are positioned in an interference fit. Raised locking ribs 905 are located at the bottom edge of the inner diameter groove of the convex surface of the middle sleeve upper sleeve. The limiting ring at the top of the large sleeve fits over the inner step chamfer of the middle sleeve. At the same time, the locking rib of the middle sleeve engages with the large sleeve locking ring 1002 at the limiting step of the large sleeve.

[0023] The specific assembly method of the vacuum bottle is as follows: first, install the gasket 3 into the gasket groove of the inner cover, then install the inner cover into the outer cover, so that the anti-rotation rib of the inner cover is inserted into the anti-rotation rib groove in the outer cover and the buckle position is buckled into the buckle position groove to form the outer cover assembly; then buckle the plugging buckle into the buckle position groove at the liquid outlet of the pressure cover to form the pressure cover assembly, and then assemble after subsequent filling. The above-mentioned soft glue plug plays a role in sealing and isolating air. In addition, the large piston is installed in the bottle body to form a half-bottle body assembly. The screw is inserted into the special-shaped hole of the middle sleeve and pressed to the bottom. The large circle is provided with a rotation limiter to prevent excessive twisting during initial installation and thus causing jamming. The positioning groove of the middle sleeve is pressed into the positioning rib of the large circle so that the buckle is buckled into the buckle groove. The bottom plug is then installed into the buckle groove at the opening of the screw. The U-shaped groove of the screw is slotted for quick assembly and pressing. The in-place assembly does not require rotating the screw to assemble, thus saving assembly time. The main function of installing the bottom plug is to fix the screw to prevent the screw from slipping when it is pressed to push the piston. Then, the semi-finished bottom cover assembly is pressed into the buckle groove in the middle ring of the bottom cover and pressed to the bottom to form the bottom cover assembly. After completing the assembly of the above components, the bottom cover assembly is pressed into the buckle groove at the bottom of the bottle body assembly to form a complete bottle body assembly. The anti-rotation rib on the bottle body cooperates with the anti-rotation rib groove on the middle sleeve to prevent rotation, and the bottle body and the middle sleeve are fixed by strong buckling. After the bottle body is assembled and filled, the pressure cap assembly is pressed into the bottle body buckle position, and then the outer cover assembly is screwed onto the liquid outlet end of the bottle body assembly to complete the liquid filling and complete the entire assembly process.

[0024] The functional principle of the vacuum bottle is as follows: first, rotate the outer cover assembly clockwise and remove it to open the product. Then, hold the bottle body with one hand and rotate the bottom cover clockwise with the other hand. The internal thread structure of the bottom cover drives the screw upward. During this process, the spring buckle on the middle sleeve will be driven into the next buckle slot, and the sound of passing the gear will be produced during the process. The gear determines the liquid dosage, and the user determines the amount of liquid to be discharged by judging the gear. The screw then pushes the piston upward, which pressurizes the liquid. The liquid squeezes into the liquid outlet, causing the blockage to deform under pressure, opening the liquid outlet channel, and allowing the liquid to discharge through the gap between the pressure cover and the blockage. After the liquid is discharged, the blockage recovers its deformation, closing the liquid outlet channel and isolating the air from contact with the material. Finally, after use, screw the outer cover assembly back on to close it.

[0025] The lightweight antistatic material is made of the following raw materials in parts by weight: 80-200 parts of polybutylene succinate, 60-80 parts of modified material polylactic acid, 30-50 parts of PHBH, 20-30 parts of cassava flour, 8-10 parts of titanium dioxide, 5-20 parts of plasticizer, 4-10 parts of nanographene, 5-8 parts of coupling agent, 2-6 parts of degradation agent, 1-5 parts of antioxidant, 1-5 parts of antistatic agent, 1-5 parts of lubricant and 1-5 parts of filler; the raw materials in parts by weight are first mixed with polybutylene succinate, modified material polylactic acid, PHBH, cassava flour and titanium dioxide, and then put into a drying oven for drying to obtain a drying material; the drying temperature is 40-60°C, and the drying time is 2-4h; then the drying material is put into a high-speed mixer, and the plasticizer, nanographene, coupling agent, degradation agent, oxidant, antistatic agent, lubricant are put into it in sequence. The invention relates to a biodegradable material comprising: a plasticizer and a filler, mixing the raw materials in a high-speed mixer for 20-30 minutes; finally, adding the mixture in the high-speed mixer to a twin-screw extruder, extruding and granulating, and obtaining a biomass degradable material; wherein the extrusion temperature of the first zone of the twin-screw extruder is 90-100° C., the extrusion temperature of the second zone is 110-120° C., and the extrusion temperature of the third zone is 120-130° C.; the plasticizer is propylene glycol, the coupling agent is silane coupling agent KH-560, the degradation agent is a mixture of polyhydroxyalkanoate and modified cyclodextrin in a weight ratio of 2:1, the antioxidant is a mixture of BHA and PG in any ratio, the lubricant is a mixture of glycerol tristearate and soybean oil in any ratio, the filler is a calcium carbonate masterbatch, and the antistatic agent is HDC-102 antistatic agent or HBS-510 antistatic agent.

[0026] In summary, this vacuum bottle is a cylindrical rotary push-type vacuum bottle. This type of cylindrical rotary vacuum bottle is used in the packaging of daily chemical and skin care products. Some vacuum bottles on the market currently use a pump structure to discharge liquid, but the structure of this vacuum bottle is different from existing vacuum bottles on the market. Instead, it uses an internal screw transmission structure. The bottom cover is rotated by hand, and the internal structure of the bottom cover drives the screw and piston, which pressurizes the liquid in the bottle to achieve the liquid discharge function. Therefore, to prevent leakage when carrying this vacuum bottle, a leak-proof gasket is provided between the inner cover and the pressure cover, which makes it convenient and safe to carry. It is easy to use, highly safe to carry, has a low residue rate, sophisticated functions, and a stylish appearance. It meets the current market demand for green environmental protection, convenient and efficient use.

Claims

1. A lightweight anti-static vacuum bottle, the lid of the vacuum bottle comprises an outer cover (1), an inner cover (2) and a gasket (3), the inner cover of the lid is inserted into and fixed in the outer cover and connected as a whole, the center hole of the inner cover is provided with a gasket, the top of the bottle mouth of the bottle body (6) is provided with a pressure cap (4), the center hole of the pressure cap is provided with a plug (5), the plug is fastened and fixed to the center hole of the pressure cap, the bottle body comprises a large piston (7), a screw (8), a middle sleeve (9), a large ring (10), and a bottom plug (11), the large ring is arranged in the bottom cover (12) at the bottom of the bottle body, the bottom cover and the large ring are fastened and connected as a whole, and the middle sleeve is fastened and fixed to the bottle mouth at the bottom of the bottle body; it is characterized in that The middle sleeve (9) is fitted and fixed on the inner diameter of the bottle mouth at the bottom of the bottle body (6), and the large piston (7) is arranged in the upper chamber of the bottle body formed by the middle sleeve and the bottle body. One end of the screw (8) is against the bottom of the large piston in the bottle body, and the other end of the screw passes through the special-shaped hole (902) in the center of the middle sleeve and is connected to the central threaded hole of the large circle (10) in the bottom cover (12). The center of the screw is provided with a through hole, and the center hole of the screw at one end of the bottom cover is provided with a bottom plug (11); the bottom cover drives the large circle to rotate, so that the screw moves upward when it rotates, and the screw drives the large piston to move upward; one end of the large piston (7) of the screw (8) is provided with a platform (801), and the screw is against the rib groove at the support rib (701) at the bottom of the large piston through the platform. The rod of the screw is rectangular, and the outer diameter of the other end of the screw is symmetrically provided with oblique thread ribs (802) on both sides, and the other two sides of the screw are provided with openings The U-shaped groove is provided, and the through hole in the center of the screw is a waist-shaped hole; the length of the special-shaped hole (902) of the middle sleeve (9) is greater than the length of the rectangular side of the screw, and the width of the special-shaped hole of the middle sleeve is equal to the width of the rectangular side of the screw, and the rod of the screw is correspondingly fitted and positioned; positioning ribs (803) are symmetrically provided on both sides of the chamfer at the step between the platform bottom and the rod of the screw (8), and positioning grooves (903) are symmetrically provided on both sides of the special-shaped hole (902) in the middle sleeve (9) corresponding to the screw positioning ribs, and the positioning ribs of the screw are inserted into the positioning grooves of the middle sleeve; the outer diameter of the threaded hole at the top of the large circle (10) is symmetrically provided with raised convex points (1004) and convex ribs (1005), and one side of the convex rib is an inlet bevel, and the positioning ribs (803) of the screw (8) are against the threaded hole of the large circle through the positioning groove (903) of the middle sleeve (9).

2. The lightweight anti-static vacuum bottle according to claim 1, characterized in that The middle sleeve (9) is fixed by the middle sleeve gear ring (901) of the bottom outer diameter and the inner diameter of the bottom bottle mouth of the bottle body (6), and the large ring (10) is fixed by the large ring gear ring (1001) of the bottom outer diameter and the middle ring inner diameter of the bottom inner diameter of the bottom cover (12).

3. The lightweight antistatic vacuum bottle according to claim 2, characterized in that The inner diameter of the bottom bottle opening of the bottle body (6) is provided with a raised bottle body rack (601), and the inner diameter of the bottom bottle opening below the bottle body rack is provided with a bottle body buckle ring (602), the bottle body rack of the bottle body is inserted into the middle sleeve gear ring (901) of the middle sleeve (9), and the lower ring opening of the middle sleeve gear ring of the middle sleeve is buckled with the bottle body buckle ring of the bottle body; the inner diameter of the middle ring of the bottom inner diameter of the bottom cover (12) is provided with a raised bottom cover rack (1201), and the inner diameter ring opening of the middle ring above the bottom cover rack is provided with a bottom cover buckle ring (1202), the bottom cover rack of the bottom cover is inserted into the large ring gear ring (1001) of the large ring (10), and the upper ring opening of the large ring gear ring of the large ring is buckled with the bottom cover buckle ring of the bottom cover.

4. The lightweight anti-static vacuum bottle according to claim 1, characterized in that The special-shaped hole (902) of the middle sleeve (9) is arranged on the raised upper sleeve of the middle sleeve, and bullet holes (904) are symmetrically provided on the top plane of the middle sleeve upper sleeve on both sides of the special-shaped hole. The middle sleeve gear ring (901) of the middle sleeve is arranged on the outer diameter of the lower sleeve ring of the middle sleeve, and the outer diameter of the upper sleeve platform of the middle sleeve is provided with convex surfaces and concave surfaces that are evenly and equidistantly connected. The convex surface at the step chamfer of the outer diameter between the upper sleeve platform and the lower sleeve ring of the middle sleeve is provided with a triangular reinforcing rib.

5. The lightweight antistatic vacuum bottle according to claim 4, characterized in that A raised damping rib is provided at the bottom of the bullet hole (904) of the middle sleeve (9), and a damping tooth (1003) is provided on the outer diameter plane of the threaded hole at the top of the large circle (10). The damping rib of the middle sleeve and the damping tooth of the large circle are positioned by interference fit.

6. The lightweight antistatic vacuum bottle according to claim 4, characterized in that A raised locking rib (905) is provided at the bottom edge of the inner diameter groove at the convex surface of the upper sleeve platform of the middle sleeve (9), and the limiting ring at the top of the large circle (10) is fitted on the chamfered portion of the inner step of the middle sleeve, while the locking rib of the middle sleeve is fastened with the large circle locking ring (1002) at the limiting step of the large circle.

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