Rotary hidden head cap type vacuum bottle

By designing a rotating, concealed cap-type vacuum bottle with an integrated structure and a limiting buckle design, the problems of poor stability and inconvenient assembly of vacuum bottles are solved. This achieves stable connection and convenient assembly between components, improving the stability of vacuum bottle use and production efficiency.

CN118514978BActive Publication Date: 2026-04-24NINGBO ZHENGJIANG PLASTIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO ZHENGJIANG PLASTIC TECH CO LTD
Filing Date
2024-06-27
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing vacuum bottles have poor stability, and the integrated and automated assembly of components is inconvenient, making them prone to disengagement.

Method used

A rotating concealed cap type vacuum bottle was designed. Through the integrated structure and limiting buckle design, stable connection and convenient assembly between components are achieved, including the mutual fixation and rotational cooperation of components such as inner bottle, outer bottle, large ring, connecting seat, pump core, and cap.

Benefits of technology

This achieves good stability between components, facilitates assembly, avoids disengagement, and improves the stability of vacuum bottles and the convenience of automated production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a kind of rotary hidden head cap type vacuum bottle, it is for solving the technical problems of poor stability of existing similar products, the integral assembly and automatic assembly of parts are more inconvenient, and the situation of easy to produce decoupling between parts occurs Design.The overall vacuum bottle is square with chamfer, pump core is arranged in the upper eccentric hole of connecting seat;Its key point is that the fixing seat bottom seat mouth inner diameter of the vacuum bottle is fixed in the connecting seat outer diameter of the connecting seat at the place of the buckle groove, shoulder sleeve, decorative cover, head cap, fixed seat are integrated as shoulder sleeve assembly, then it can be loaded into the bottle body assembly of large circle, connecting seat, outer bottle, inner bottle, and integrated, shoulder sleeve assembly and bottle body assembly are relatively rotated by the buckling structure between fixed seat and connecting seat, drive head cap to extend through eccentric structure and set the waist-shaped hole of shoulder sleeve, or enter into shoulder sleeve;The side and below of the cover nozzle of the decorative cover are provided with convex and called L-shaped arc platform, and the arc platform is L-shaped elastic sheet.
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Description

Technical Field

[0001] This invention relates to vacuum bottles, specifically a rotating concealed cap type vacuum bottle. Background Technology

[0002] A vacuum bottle is a container that isolates gas from external temperature or bacteria. It mainly consists of a cylindrical or elliptical container with a piston at the bottom. Its working principle is to use the contraction force of a spring to create a vacuum, preventing air from entering the bottle, and then use atmospheric pressure to push the piston at the bottom forward. To facilitate the reuse of the outer bottle and other structures, some vacuum bottles employ a replaceable assembly structure; for example, Chinese patent application number 202322896654.4, authorized on June 14, 2024, entitled "Snap-in Type Deformable Replaceable Rotary Vacuum Bottle"; and another example is Chinese patent application number 201720689852.5, authorized on August 3, 2018, entitled "A Head-Rotating Telescopic Vacuum Bottle." However, these products and similar products have poor stability, and the integrated and automatic assembly of components is inconvenient, with components prone to disengagement. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the purpose of this invention is to provide a rotary concealed cap type vacuum bottle, which solves the technical problems of poor stability, inconvenience in integrated and automatic assembly of components, and easy disengagement between components in existing similar products. This objective is achieved through the following technical solution.

[0004] A rotary concealed cap type vacuum bottle includes an outer bottle containing an integrally integrated inner bottle. The inner bottle contains a piston, and the inner bottle has an integrally integrated large ring at its opening. This large ring and a connecting seat are integrally fixed into the opening of the outer bottle extending from the inner bottle. A pump core is located in the upper eccentric hole of the connecting seat. The liquid inlet at the bottom of the cap is connected to a valve stem at one end of the pump core. The other end of the pump core communicates with the inner bottle through the large ring. The top and outer diameter of the cap are fastened and fixed integrally within a decorative cover, and the outer diameter of the decorative cover is also fastened and fixed. The shoulder sleeve is integrated with the outer bottle, and the shoulder sleeve and the outer bottle are set up vertically and their outer diameters correspond to each other, forming a square shape with chamfers. The buckle rib of the bottom seat opening of the fixing seat is fastened and fixed to the buckle groove of the outer diameter of the connecting seat. The shoulder sleeve and the fixing seat are integrated. The shoulder sleeve drives the decorative cover, the head cap, and the fixing seat to rotate together. The outer bottle drives the inner bottle, the large ring, and the connecting seat to rotate together. The liquid outlet of the head cap extends out of the waist-shaped hole on one side of the shoulder sleeve. The waist-shaped hole is symmetrical to the other side of the top of the head cap, and a notch edge is provided for easy pressing. The key structural design features an inner bottle that is inserted into and fixed to a raised positioning rib on the outer diameter side of the bottom of the large ring via a positioning groove on one side of the bottle mouth. The inner bottle's lower limit ring has barbs on both sides of the opening that engage with and fix the outer bottle's inner diameter hook grooves on both sides, forming a single unit. Simultaneously, the outer bottle's mouth is limited by the inner bottle's limit ring. A groove on one side of the top ring's inner diameter fits into a raised rib on the bottom side of the connecting seat, forming a single unit. The symmetrically arranged slots on both sides of the top sleeve of the fixing seat are inserted into and fitted with symmetrically arranged grooves on both sides of the top of the shoulder sleeve, forming a single unit. The head cap's liquid outlet extends from the shoulder sleeve's waist-shaped hole through a spray hole on one side of the decorative cap. The opening on one side of the sleeve with slots on both sides of the fixing seat aligns with the spray hole on the decorative cap. The top edge of the sleeve on the other side of the slots on both sides of the fixing seat has an arc-shaped edge aligned with the notch on the top of the shoulder sleeve. Thus, after the shoulder sleeve, decorative cap, head cap, and fixing seat are connected as a whole as a shoulder sleeve assembly, it can be inserted into the bottle body assembly, which is composed of a large ring, connecting seat, outer bottle, and inner bottle. The shoulder sleeve assembly and the bottle body assembly can rotate relative to each other through the fastening structure between the fixing seat and the connecting seat, causing the head cap to extend out of the waist-shaped hole of the shoulder sleeve through the eccentric structure, or to be retracted into the shoulder sleeve.

[0005] The decorative cover has symmetrically arranged hooks on both sides of the bottom opening and symmetrically arranged protruding guide ribs on the inner wall of the sleeve at the fixing seat, which are connected to each other as one piece. At the same time, the bottom opening of the decorative cover has a guide groove on one side. When the decorative cover is rotated to the open position by the shoulder sleeve, the guide groove inside the decorative cover is aligned with the guide rib of the fixing seat. When the decorative cover is rotated to the closed position by the shoulder sleeve, the guide rib of the fixing seat abuts against the hooks of the decorative cover for limiting.

[0006] The decorative cover has a raised, L-shaped arc platform on one side and below the spray hole, and the circumferential platform of the decorative cover is inserted into the sleeve of the fixing seat.

[0007] The curved platform of the decorative cover is an L-shaped spring piece integrally formed with the inner side of the L-shaped bend and the upper edge of the middle of the nozzle of the decorative cover.

[0008] The two symmetrically arranged protrusions on the inner wall of the shoulder sleeve are inserted into and limited by the corner groove at the upper opening of the outer diameter end of the sleeve below the fixed base.

[0009] The connecting seat has symmetrical L-shaped holes with openings on both sides and communicating below at the raised ring rib between the buckle groove and the rib. The positioning pins with symmetrical protrusions on both sides at the top ring of the large ring are inserted into the L-shaped holes of the connecting seat. At the same time, the triangular pins with protrusions on both sides at the buckle rib of the fixing seat correspond to the brake platform with a protrusion and one side slope at the buckle groove inside the connecting seat, or the positioning pin of the large ring passes through the L-shaped hole and is located in the buckle groove at the brake platform inside the connecting seat.

[0010] The connecting seat has an open guide opening on one side of the buckle groove. The triangular prism of the fixing seat is inserted through the guide opening of the connecting seat, and the buckle groove of the connecting seat is engaged with the buckle rib of the fixing seat.

[0011] The outer plane of the upper eccentric hole at the top of the connector is provided with a protruding locking post, and the outer diameter of the liquid inlet hole at the bottom of the cap corresponding to the locking post is provided with a protruding pressure-stopping sleeve. When the cap is in the open state by rotating the shoulder sleeve, the anti-rotation post inside the cap is misaligned and separated from the pressure-stopping sleeve of the connector. When the cap is rotated to the closed state by rotating the shoulder sleeve, the anti-rotation post inside the cap abuts against the pressure-stopping sleeve of the connector and limits its movement.

[0012] The raised rectangular block at the liquid outlet of the cap corresponds to the rectangular hole at the spray hole on the side of the decorative cover.

[0013] The bottom of the pump core passes through the upper eccentric hole of the connector and extends out of the lower eccentric hole of the large circle. The pump body or inner plug of the pump core is clamped between the upper eccentric hole of the connector and the lower eccentric hole of the large circle, or is fastened and fixed to the upper eccentric hole of the connector.

[0014] The present invention has a reasonable structural design, is easy to assemble and produce, facilitates automated assembly, has good stability between components, and has a sturdy limiting buckle structure; it is suitable for use as a rotating concealed cap type vacuum bottle with an eccentric cap, and is a structural improvement of similar products. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the structure of the present invention in an exploded state.

[0016] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the shoulder cover.

[0017] Figure 3 yes Figure 1 A schematic diagram of the internal structure of the mounting bracket.

[0018] Figure 4 yes Figure 1 A top view of the connecting seat structure.

[0019] Figure 5 yes Figure 1 A cross-sectional view of the assembled and opened structure.

[0020] Figure 6 yes Figure 5 A cross-sectional structural diagram of the headgear.

[0021] Figure 7 yes Figure 5 A schematic diagram of the three-dimensional structure.

[0022] Figure 8 yes Figure 7 A schematic diagram of the three-dimensional structure in the rotated closed state.

[0023] Figure 9 yes Figure 8 A cross-sectional structural diagram.

[0024] Figure 10 yes Figure 9 A cross-sectional structural diagram of the headgear.

[0025] Attached Figures and Their Names: 1. Shoulder Cover, 101. Waist-shaped Hole, 102. Notched Edge, 103. Protrusion, 104. Groove Rib, 2. Decorative Cover, 201. Hook, 202. Cover Spray Hole, 203. Arc-shaped Platform, 204. Guide Groove, 3. Head Cap, 301. Rectangular Block, 302. Pressure-resistant Sleeve, 4. Fixing Base, 401. Buckle Rib, 402. Groove, 403. Corner Groove, 404. Guide Rib 405. Triangular column; 5. Pump core; 6. Connecting seat; 601. Upper eccentric hole; 602. Snap groove; 603. Raised rib; 604. L-shaped hole; 605. Brake platform; 606. Guide port; 607. Locking post; 7. Large ring; 701. Groove; 702. Positioning post; 703. Lower eccentric hole; 8. Piston; 9. Inner bottle; 901. Positioning groove; 902. Barb; 10. Outer bottle. Implementation

[0026] The structure of the present invention will now be further described with reference to the accompanying drawings. For example... Figures 1-10As shown, the vacuum bottle has an inner bottle 9 integrated inside the outer bottle 10. A piston 8 is located inside the inner bottle. A large ring 7 is integrated at the mouth of the inner bottle. The large ring and the connecting seat 6 are integrated and fixedly inserted into the mouth of the outer bottle extending from the inner bottle. The pump core 5 is located in the upper eccentric hole 601 of the connecting seat. The liquid inlet at the bottom of the cap is connected to one end of the valve stem of the pump core. The other end of the pump core communicates with the inner bottle through the large ring. The top and outer diameter of the cap are fastened and fixed inside the decorative cover 2, and the outer diameter of the decorative cover is fastened and fixed inside the shoulder sleeve 1. The shoulder sleeve and the outer bottle are set up vertically and their outer diameters correspond to each other, forming a square shape with chamfers. The buckle rib 401 of the bottom seat opening of the fixing seat 4 is fastened and fixed to the buckle groove 602 of the outer diameter of the connecting seat. The shoulder sleeve and the fixing seat are connected as one unit. The shoulder sleeve drives the decorative cover, the head cap and the fixing seat to rotate together. The outer bottle drives the inner bottle, the large ring and the connecting seat to rotate together. The liquid outlet of the head cap extends out of the waist-shaped hole 101 on one side of the shoulder sleeve. The waist-shaped hole is symmetrical to the other side of the top of the head cap, and a notch edge 102 is provided for easy pressing. Its specific structure is as follows: The inner bottle is inserted into and fixed to the protruding positioning rib on the outer diameter side of the bottom of the large ring through the positioning groove 901 on the inner diameter side of the bottle mouth, and is connected as a whole. The barbs 902 below the openings on both sides of the limiting ring at the bottom of the inner bottle are respectively engaged and fixed to the hook grooves on both sides of the inner diameter of the bottle mouth of the outer bottle, and are connected as a whole. At the same time, the bottle mouth of the outer bottle is limited to the limiting ring of the inner bottle. The groove 701 on the inner diameter side of the top ring of the large ring is fitted into the protruding rib 603 on the bottom side of the connecting seat and is connected as a whole. The slots 402 symmetrically arranged on both sides of the top sleeve of the fixed seat are inserted into and fitted with the groove ribs 104 symmetrically arranged on both sides of the top of the shoulder sleeve and are connected as a whole. The liquid outlet of the head cap extends out of the waist-shaped hole of the shoulder sleeve through the cap spray hole 202 on the side of the decorative cover. The opening of the sleeve on the side of the slot on both sides of the fixed seat is aligned with the cap spray hole of the decorative cover. The top edge of the sleeve on the other side of the slot on both sides of the fixed seat is aligned with the notch edge of the top of the shoulder sleeve.

[0027] Furthermore, the hooks 201 symmetrically arranged on both sides of the bottom opening of the decorative cover are connected to the guide ribs 404 symmetrically arranged on the inner wall of the sleeve at the fixing seat, forming a single unit. Simultaneously, a guide groove 204 is provided on one side of the bottom opening of the decorative cover. When the decorative cover is rotated to the open position via the shoulder sleeve, the guide groove inside the decorative cover aligns with the guide rib of the fixing seat. When the decorative cover is rotated to the closed position via the shoulder sleeve, the guide rib of the fixing seat abuts against and limits the movement of the hooks on the decorative cover. A raised, L-shaped arc-shaped platform 203 is provided on one side and below the nozzle of the decorative cover. The circumferential platform of the decorative cover is embedded in the opening at the sleeve of the fixing seat. The arc-shaped platform of the decorative cover is an L-shaped spring piece integrally formed with the inner side of the L-shaped bend and the upper edge of the middle of the nozzle of the decorative cover. Two symmetrically arranged protrusions 103 on the inner wall of the shoulder sleeve are fitted and limited into the corner groove 403 opening above the outer diameter corner of the sleeve below the fixing seat. The connecting seat has symmetrically arranged L-shaped holes 604 on both sides of the raised ring rib between the buckle groove and the rib, with openings on both sides and communicating below. Simultaneously, the symmetrically protruding positioning pins 702 at the top of the large ring are inserted into the L-shaped holes of the connecting seat. At the same time, the protruding triangular pins 405 on both sides of the buckle rib of the fixing seat correspond to the protruding brake platform 605 with a sloping side at the buckle groove inside the connecting seat, or the positioning pin of the large ring passes through the L-shaped hole and is located in the buckle groove at the brake platform inside the connecting seat. The connecting seat has a guide port 606 on one side of the buckle groove. The triangular pin of the fixing seat is inserted through the guide port of the connecting seat, and the buckle groove of the connecting seat engages with the buckle rib of the fixing seat.

[0028] Meanwhile, a protruding locking post 607 is provided on the outer surface of the upper eccentric hole at the top of the connecting seat. A protruding pressure-stopping sleeve 302 is provided on the outer diameter of the liquid inlet hole at the bottom of the cap corresponding to the locking post. When the cap is in the open state by rotating the shoulder sleeve, the anti-rotation post inside the cap is misaligned and separated from the pressure-stopping sleeve of the connecting seat. When the cap is rotated to the closed state by rotating the shoulder sleeve, the anti-rotation post inside the cap abuts against the pressure-stopping sleeve of the connecting seat and limits its movement. The protruding rectangular block 301 at the liquid outlet of the cap corresponds to the rectangular hole at the cap spray hole on the side of the decorative cover. The bottom of the pump core passes through the upper eccentric hole of the connecting seat and extends out of the lower eccentric hole 703 of the large ring. The pump body or inner plug of the pump core is clamped and limited between the upper eccentric hole of the connecting seat and the lower eccentric hole of the large ring, or is fastened and fixed to the upper eccentric hole of the connecting seat.

[0029] When the vacuum bottle is in the closed state, rotating the bottle assembly causes the large ring and connecting seat to rotate simultaneously. Because the pump core and connecting seat are eccentrically fitted, the pump core's position changes from the rear to the front during rotation. Since the cap is blocked by the curved platform of the decorative cover while rotating, the cap and pump core also rotate synchronously, causing the cap to extend outwards, thus achieving the open state. To use, hold the outer bottle and rotate the shoulder sleeve to the open position; the cap's outlet hole will then extend out of the shoulder sleeve. Pressing the decorative cover protruding from the top of the shoulder sleeve allows the vacuum bottle to be used. To close, rotate the shoulder sleeve in the opposite direction; the cap's outlet hole will retract into the shoulder sleeve. Because the cap inside the decorative cover is limited by the locking pin of the connecting seat, the protruding decorative cover cannot be pressed down for use.

[0030] In summary, this vacuum bottle effectively prevents liquid from contacting air, making it cleaner during use. The main technical features of this vacuum bottle are as follows: 1) The pump core 6 is an offset design, and the pump core 5 is assembled in the upper eccentric hole 601 of the connecting seat 6; 2) The fixing seat 4 is inserted into the guide port 606 of the connecting seat through the guide port 405 of the triangular prism, allowing for rotation after assembly; 3) The cap 3 is inserted into the pump core 5, and the locking pin 607 of the connecting seat is used to lock the pressure-stopping sleeve 302 of the cap, preventing the cap from being pressed down (the cap will rotate with the rotation); 4) The decorative cover 2 covers the cap 3, and the decorative cover 2 is equipped with an anti-detachment feature. 5) The hook 201 of the snap-fit ​​position and the cap nozzle 202 of the cap window are snapped together, wherein the hook 201 and the guide rib 404 of the fixing seat are snapped together; 6) The shoulder sleeve 1 with waist-shaped hole 101 and protrusion 103 is assembled on the outside of the pump head to form an integral pump head, wherein the protrusion 103 of the shoulder sleeve 1 is snapped into the corner groove 403 of the fixing seat; 7) The positioning post 702 of the large ring 7 is snapped into the L-shaped hole 604 of the connecting seat 6 to fix the large ring 7 to the connecting seat 6; 8) The piston is installed into the inner bottle, and the inner bottle and the outer bottle are positioned and snapped together to form the bottle body assembly.

Claims

1. A rotating concealed cap type vacuum bottle, wherein the outer bottle (10) of the vacuum bottle is provided with an inner bottle (9) integrated with it, a piston (8) is provided in the inner bottle, and a large ring (7) integrated with it is provided at the bottle mouth of the inner bottle. The large ring and the connecting seat (6) are integrated and fixedly installed at the bottle mouth of the inner bottle extending from the outer bottle. The pump core (5) is provided in the upper eccentric hole (601) of the connecting seat. The liquid inlet hole at the bottom of the cap is connected to the valve stem at one end of the pump core. The other end of the pump core is connected to the inner bottle through the large ring. The top and outer diameter of the cap are fastened and fixed to the decorative cover (2) integrated with it. The outer diameter of the decorative cover is fastened and fixed to the inner bottle. The shoulder sleeve (1) is integrated into one piece. The shoulder sleeve and the outer bottle are set up vertically and their outer diameters correspond to each other, forming a square shape with chamfers. The buckle rib (401) of the bottom seat opening of the fixing seat (4) is fastened and fixed to the buckle groove (602) of the outer diameter of the connecting seat extending out of the connecting seat. The shoulder sleeve and the fixing seat are integrated into one piece. The shoulder sleeve drives the decorative cover, the head cap, and the fixing seat to rotate together. The outer bottle drives the inner bottle, the large ring, and the connecting seat to rotate together. The liquid outlet of the head cap extends out of the waist-shaped hole (101) on one side of the shoulder sleeve. The waist-shaped hole is symmetrical. A notch edge (102) is provided on the other side of the top of the head cap for easy pressing. Its features are as follows: The inner bottle (9) is inserted into and fixed to the protruding positioning rib on the outer diameter side of the bottom of the large ring (7) through the positioning groove (901) on one side of the inner diameter of the bottle mouth, and is connected as a whole. The barbs (902) below the openings on both sides of the limiting ring at the bottom of the inner bottle are respectively fastened and fixed to the hook grooves on both sides of the inner diameter of the bottle mouth of the outer bottle (10), and are connected as a whole. At the same time, the bottle mouth of the outer bottle is limited to the limiting ring of the inner bottle. The groove (701) on one side of the inner diameter of the top ring of the large ring is fitted into the protruding rib (603) on the bottom side of the connecting seat (6) and is connected as a whole. The slots (402) symmetrically arranged on both sides of the top sleeve of the fixing seat (4) are inserted into and fitted into the groove ribs (104) symmetrically arranged on both sides of the top of the shoulder sleeve (1) and are connected as a whole. The liquid outlet of the cap (3) is through the cap spray hole (202) on one side of the decorative cover (2). The waist-shaped hole (101) of the shoulder sleeve extends out, the opening of the sleeve on one side of the slot on both sides of the fixed seat is aligned with the spray hole of the decorative cover, and the top edge of the sleeve on the other side of the slot on both sides of the fixed seat is aligned with the notch edge (102) of the top of the shoulder sleeve; the connecting seat (6) has symmetrically provided L-shaped holes (604) with openings on both sides and communicating below at the protruding ring rib between the buckle groove (602) and the rib (603) of the connecting seat (6), and the positioning pins (702) with symmetrical protrusions on both sides of the top ring opening of the large ring (7) are inserted into the L-shaped hole of the connecting seat. At the same time, the triangular pins (405) with protrusions on both sides of the buckle rib (401) of the fixed seat (4) correspond to the brake platform (605) with protrusion and one side inclined at the buckle groove in the connecting seat, or the positioning pin of the large ring passes through the L-shaped hole and is located in the buckle groove at the brake platform in the connecting seat. The connecting seat (6) has an open guide port (606) on one side of the buckle groove (602). The triangular prism (405) of the fixing seat (4) is inserted through the guide port of the connecting seat, and the buckle groove of the connecting seat is fastened to the buckle rib (401) of the fixing seat. The outer plane of the upper eccentric hole (601) at the top of the connecting seat (6) has a protruding locking post (607). The outer diameter of the bottom liquid inlet hole of the cap (3) corresponding to the locking post has a protruding pressure-stopping sleeve (302). When the cap is rotated open by the shoulder sleeve (1), the anti-rotation post inside the cap is misaligned and separated from the pressure-stopping sleeve of the connecting seat. When the cap is rotated to the closed state by the shoulder sleeve, the anti-rotation post inside the cap abuts against the pressure-stopping sleeve of the connecting seat and limits its movement.

2. The rotating concealed cap type vacuum bottle according to claim 1, characterized in that... The decorative cover (2) has hooks (201) symmetrically arranged on both sides of the bottom cover opening and guide ribs (404) symmetrically arranged on the inner wall of the sleeve at the fixed seat (4) to be fastened and connected as one piece. At the same time, the decorative cover (2) has a guide groove (204) on one side of the bottom cover opening. When the decorative cover is rotated to the open state of the head cap (3) through the shoulder sleeve (1), the guide groove in the decorative cover is aligned with the guide rib of the fixed seat. When the decorative cover is rotated to the closed state of the head cap through the shoulder sleeve, the guide rib of the fixed seat and the hook of the decorative cover are abutted and limited.

3. The rotating concealed cap type vacuum bottle according to claim 2, characterized in that... The decorative cover (2) has a raised, L-shaped arc platform (203) on one side and below the spray hole (202), and the circumferential platform of the decorative cover is embedded in the sleeve of the fixing seat (4) at the opening.

4. The rotating concealed cap type vacuum bottle according to claim 3, characterized in that... The arc-shaped platform (203) of the decorative cover (2) is an L-shaped spring piece integrally formed with the inner side of the L-shaped bend and the upper edge of the middle of the cover spray hole (202) of the decorative cover.

5. The rotating concealed-head cap type vacuum bottle according to claim 2, characterized in that... The two symmetrically arranged protrusions (103) on the inner wall of the shoulder sleeve (1) are inserted into and limited by the corner groove (403) that opens above the outer diameter end of the sleeve of the fixed seat (4).

6. The rotating concealed-head cap type vacuum bottle according to claim 1, characterized in that... The rectangular block (301) protruding at the liquid outlet of the cap (3) corresponds to the rectangular hole at the spray hole (202) extending from one side of the decorative cover (2).

7. The rotating concealed-head cap type vacuum bottle according to claim 1, characterized in that... The bottom of the pump core (5) passes through the upper eccentric hole (601) of the connecting seat (6) and extends out of the lower eccentric hole (703) of the large ring (7). The pump body or inner plug of the pump core is clamped between the upper eccentric hole of the connecting seat and the lower eccentric hole of the large ring, or is fastened and fixed to the upper eccentric hole of the connecting seat.

Citation Information

Patent Citations

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