Replaceable vacuum bottle

Abstract

The utility model relates to a replaceable vacuum bottle which aims at solving the technical problems that an inner bottle, an outer bottle and a shoulder sleeve of an existing similar product are inconvenient to assemble and disassemble, the structural design is not good enough, and the sealing performance and the air tightness are not good enough. The replaceable vacuum bottle is characterized in that a tooth-shaped buckle ring is arranged on the outer diameter of a bottle opening in the top of an inner bottle of the replaceable vacuum bottle, a limiting buckle groove is formed below the tooth-shaped buckle ring, a limiting convex rib is arranged on the inner diameter of a sleeve opening in the inner side of a shoulder sleeve corresponding to the limiting buckle groove, and a protruding inner positioning rib is arranged on the inner diameter of a sleeve opening in the inner side of the shoulder sleeve above the limiting convex rib; when the limiting buckling groove of the inner bottle is fixed to the limiting convex rib of the shoulder sleeve in an interference buckling mode, the inner positioning rib of the shoulder sleeve is inserted into a tooth groove in one side of the tooth-shaped buckling ring limited to the inner bottle; triangular equidistant threads are arranged on the inner diameter of a sleeve opening on the outer side of the bottom of the shoulder sleeve, a thread point and a short thread are arranged below a long thread on the top of each group of threads side by side, the thread point is arranged in front of the short thread in the screwing-in direction, a protruding boss is arranged on the inner wall of the top of the shoulder sleeve above the threads, and the replacement assembly is used for assembling an unloaded outer bottle.

Description

Technical Field

[0001] The utility model relates to a vacuum bottle, which is a replacement vacuum bottle. Background Art

[0002] A vacuum bottle is a container used to isolate gas from the outside temperature or a cosmetic container to isolate external bacteria. It is generally composed of a cylindrical container and a piston placed at the bottom. In order to facilitate the replacement of two liquids in the vacuum bottle, some vacuum bottles are equipped with replacement components, or are convenient for replacement. For example, the authorization announcement number CN219374032U disclosed in the Chinese patent literature, the authorization announcement date 2023.07.21, the utility model name "a self-retracting replacement bottle"; another example is the application publication number CN117508891A disclosed in the Chinese patent literature, the application publication date 2024.02.06, the invention name "replacement of anti-static polymer vacuum bottle based on elliptical buckle position and its preparation method". However, the screw thread assembly method between the inner and outer bottles and the shoulder sleeves in the above-mentioned products and similar products generally adopts a spiral rotation method, the outer bottle rarely adopts a segmented screw thread loading and unloading method and structure, and the inner bottle rarely adopts a gear ring buckle structure, which makes the loading and unloading of the inner and outer bottles more inconvenient. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a replacement vacuum bottle in the art, which can solve the technical problems of the existing similar products such as the inconvenience of loading and unloading between the inner and outer bottles and the shoulder sleeve, poor structural design, and poor sealing and airtightness. The purpose is achieved through the following technical solutions.

[0004] A replacement vacuum bottle, the bottle body of the replacement vacuum bottle comprises an inner bottle and an outer bottle, the bottom bottle mouth of the inner bottle is provided with a bottom cover, the inner bottle is provided with a piston, the outer diameter of the top bottle mouth of the inner bottle is provided with a shoulder sleeve, the outer diameter of the inner bottle top bottle mouth is threadedly fixed to the inner diameter of the bottom outer sleeve mouth of the shoulder sleeve, the top bottle mouth of the inner bottle is buckled and fixed to the inner diameter of the bottom inner sleeve mouth of the shoulder sleeve, a pump core assembly is fixed to the inner diameter of the top bottle mouth of the inner bottle, and the valve stem of the pump core assembly extending out of the shoulder sleeve is connected to the liquid inlet hole at one end of the head cap; another group of inner bottle, piston, bottom cover, pump core assembly, shoulder sleeve and head cap constitute a replacement assembly, and the outer bottle can be removed and used in combination with the shoulder sleeve of the replacement assembly. The key points of the structural design are that the outer diameter of the top bottle mouth of the inner bottle is provided with a toothed buckle ring, a limiting buckle groove is provided below the toothed buckle ring, a limiting convex rib is provided on the inner diameter of the inner sleeve opening of the shoulder sleeve corresponding to the limiting buckle groove, and a raised inner positioning rib is provided on the inner diameter of the inner sleeve opening of the shoulder sleeve above the limiting convex rib; when the limiting buckle groove of the inner bottle is fixed to the limiting convex rib of the shoulder sleeve by interference fit, the inner positioning rib of the shoulder sleeve is inserted into the toothed groove on one side of the toothed buckle ring of the inner bottle. The above structure facilitates the buckling of the inner bottle and the shoulder sleeve for loading and unloading, and the operation is more convenient.

[0005] An airtight groove is provided on the top ring surface of the toothed buckle ring of the inner bottle, and a raised anti-rotation block is provided on the top ring surface of the inner sleeve inner diameter of the shoulder sleeve corresponding to the positioning hole, the bottom of the gasket fits against the top ring surface of the inner bottle at the airtight groove, and the top of the gasket abuts against the top ring of the shoulder sleeve at the anti-rotation block.

[0006] The inner diameter of the outer sleeve opening at the bottom of the shoulder sleeve is provided with screw teeth equidistantly distributed in a triangular shape, and a screw point and a short screw tooth are arranged side by side below the long screw tooth at the top of each group of screw teeth, the screw point is arranged in front of the short screw tooth in the screw-in direction, and a raised boss is provided on the inner wall of the top of the shoulder sleeve above the screw tooth; the threads at the bottle mouth of the top of the outer bottle corresponding to the screw teeth at the shoulder sleeve are distributed in three equidistant lines, and the bottom end corners of the threads are respectively provided with stop grooves, one side of the bottom of the stop groove is a vertical bar, and above the stop groove is the screw-in entrance of the thread at the bottle mouth of the top of the outer bottle; the long screw teeth of the shoulder sleeve correspond to the threads at the bottle mouth of the top of the outer bottle that are screwed into, and are locked in the stop groove of the thread, and the bottle mouth of the outer bottle is limited to the boss located at the top of the shoulder sleeve, and at the same time, when the screw point of the shoulder sleeve is against the stop groove of the outer bottle, the shoulder sleeve continues to be rotated, and the screw point of the shoulder sleeve interferes over the vertical bar that is fastened and fixed in the stop groove. The thread structure of the shoulder sleeve cooperates with the thread structure of the outer bottle, so that the shoulder sleeve is more stable after being screwed into the outer bottle, and the sealing and airtightness are better.

[0007] The outer diameter of the pump port at the top of the pump body of the pump core assembly, or the outer diameter of the connecting cover at the pump port at the top of the pump body, is fastened and fixed to the center hole in the shoulder sleeve.

[0008] The outer diameter of the shoulder sleeve of the replacement assembly is fitted with a replacement cover, and the bulge on one side of the replacement cover corresponds to the bulge at the liquid outlet of the other end of the head cap. The above-mentioned cover can also be used as a replacement cover, or other existing replacement cover structures.

[0009] The utility model has reasonable structural design, is easy to use and carry, has good sealing and airtightness, and is particularly convenient to replace the replacement package. The utility model is mainly used as a replacement package vacuum bottle with a replacement package, and is a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a cross-sectional structural schematic diagram of the utility model.

[0011] Figure 2 yes Figure 1 Schematic diagram of the bottom structure of the shoulder sleeve.

[0012] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure in the explosion state, with the outer cover omitted in the figure.

[0013] Figure 4 yes Figure 3 Schematic diagram of the combined state structure.

[0014] Figure 5 It is a schematic diagram of the replacement assembly structure of the utility model.

[0015] Serial numbers and names of the accompanying drawings: 1. Outer bottle, 101. Stop groove, 2. Inner bottle, 201. Toothed buckle ring, 202. Limit buckle groove, 203. Airtight groove, 3. Piston, 4. Bottom cover, 5. Pump core assembly, 6. Shoulder sleeve, 601. Screw thread, 6011. Long screw thread, 6012. Screw thread point, 6013. Short spiral, 602. Limiting rib, 603. Inner positioning rib, 604. Boss, 7. Gasket, 8. Head cap, 9. Outer cover, 10. Replacement assembly, 11. Replacement outer cover. Implementation

[0016] Now, in conjunction with the accompanying drawings, the structure of the utility model is further described. Figure 1-Figure 5 As shown, the bottle body of the replacement vacuum bottle includes an inner bottle 2 and an outer bottle 1, the bottom bottle mouth of the inner bottle is provided with a bottom cover 4, the inner bottle is provided with a piston 3, the outer bottle is provided with a shoulder sleeve 6 at the outer diameter of the top bottle mouth of the inner bottle, the outer bottle top bottle mouth of the inner bottle outer diameter is threadedly fixed to the inner diameter of the bottom outer sleeve mouth of the shoulder sleeve, the top bottle mouth of the inner bottle is buckled and fixed to the inner diameter of the bottom inner sleeve mouth of the shoulder sleeve, and the inner diameter of the top bottle mouth of the inner bottle is fixed with a pump core assembly 5, and the valve stem of the pump core assembly extending out of the shoulder sleeve is connected to the liquid inlet hole at one end of the head cap 8; another group of inner bottle, piston, bottom cover, pump core assembly, shoulder sleeve, and head cap constitute a replacement assembly 10, and the outer bottle is removed and used in combination with the shoulder sleeve of the replacement assembly. The inner diameter of the outer sleeve opening at the bottom of the above-mentioned shoulder sleeve is provided with screw teeth 601 equidistantly distributed in a triangular shape, and a screw point 6012 and a short screw tooth 6013 are arranged side by side below the long screw tooth 6011 at the top of each group of screw teeth, and the screw point is arranged in front of the short screw tooth in the screw-in direction, and a raised boss 604 is provided on the inner wall of the top of the shoulder sleeve above the screw tooth; the threads at the bottle mouth of the top of the outer bottle corresponding to the screw teeth at the shoulder sleeve are distributed in three equidistant lines, and the bottom end corners of the threads are respectively provided with anti-rotation grooves 101, one side of the bottom of the anti-rotation groove is a vertical bar, and the top of the anti-rotation groove is the screw-in entrance of the thread at the bottle mouth of the top of the outer bottle; the long screw teeth of the shoulder sleeve correspond to the threads at the bottle mouth of the top of the outer bottle, and are locked in the anti-rotation groove of the thread, and the bottle mouth of the outer bottle is against the boss located at the top of the shoulder sleeve, and at the same time, when the screw point of the shoulder sleeve is against the anti-rotation groove of the outer bottle, the shoulder sleeve continues to be rotated, and the screw point of the shoulder sleeve interferes and passes over the vertical bar that is fastened and fixed in the anti-rotation groove.

[0017] The outer diameter of the top bottle mouth of the inner bottle is provided with a toothed buckle ring 201, a limiting buckle groove 202 is provided below the toothed buckle ring, a limiting convex rib 602 is provided on the inner diameter of the inner sleeve opening of the shoulder sleeve corresponding to the limiting buckle groove, and a raised inner positioning rib 603 is provided on the inner diameter of the inner sleeve opening of the shoulder sleeve above the limiting convex rib; when the limiting buckle groove of the inner bottle is fixed to the limiting convex rib of the shoulder sleeve by interference fit, the inner positioning rib of the shoulder sleeve is inserted into the tooth groove on one side of the toothed buckle ring of the inner bottle. At the same time, an airtight groove 203 is provided on the top ring surface of the toothed buckle ring of the inner bottle, and a raised stop block is provided on the top ring surface of the inner bottle at the inner diameter of the shoulder sleeve corresponding to the positioning hole, and the bottom of the gasket 7 is attached to the top ring surface of the inner bottle at the airtight groove, and the top of the gasket is against the top ring of the shoulder sleeve at the stop block. The outer diameter of the top pump opening of the pump body assembled by the core, or the outer diameter of the connecting cover at the top pump opening of the pump body is fixed to the center hole in the shoulder sleeve. The outer diameter of the replacement cover 11 is fitted on the top protrusion of the shoulder cover of the replacement assembly, and the protrusion on one side of the replacement cover corresponds to the protrusion at the liquid outlet of the other end of the head cap.

[0018] When in use, open the outer cover, press the head cap, and the liquid can be squeezed out for use; when replacing the replacement assembly, hold the shoulder cover, rotate it in the opposite direction with force to remove the outer bottle, and then install the removed outer bottle into the outer diameter of the replacement assembly in the above manner, and the replacement assembly can be used immediately.

Claims

1. A replacement vacuum bottle, the bottle body of the replacement vacuum bottle comprising an inner bottle (2) and an outer bottle (1), the bottom bottle mouth of the inner bottle is provided with a bottom cover (4), the inner bottle is provided with a piston (3), the outer diameter of the top bottle mouth of the inner bottle is provided with a shoulder sleeve (6), the outer diameter of the outer bottle top bottle mouth of the inner bottle is threadedly fixed to the inner diameter of the bottom outer sleeve mouth of the shoulder sleeve, the top bottle mouth of the inner bottle is buckled and fixed to the inner diameter of the bottom inner sleeve mouth of the shoulder sleeve, the inner diameter of the top bottle mouth of the inner bottle is fixed with a pump core assembly (5), the valve stem of the pump core assembly extending out of the shoulder sleeve is connected to the liquid inlet hole at one end of the head cap (8); another group of the inner bottle, the piston, the bottom cover, the pump core assembly, the shoulder sleeve, and the head cap constitute a replacement assembly (10), the outer bottle is removed and used in combination with the shoulder sleeve of the replacement assembly; Features The outer diameter of the top bottle mouth of the inner bottle (2) is provided with a toothed buckle ring (201), a limiting buckle groove (202) is provided below the toothed buckle ring, a limiting convex rib (602) is provided on the inner diameter of the inner sleeve opening of the shoulder sleeve (6) corresponding to the limiting buckle groove, and a raised inner positioning rib (603) is provided on the inner diameter of the inner sleeve opening of the shoulder sleeve above the limiting convex rib; when the limiting buckle groove of the inner bottle is fixed to the limiting convex rib of the shoulder sleeve by interference fit, the inner positioning rib of the shoulder sleeve is inserted into the toothed groove on one side of the toothed buckle ring of the inner bottle.

2. The replacement vacuum bottle according to claim 1, Features The toothed buckle ring (201) of the inner bottle (2) is provided with an airtight groove (203) on its top ring surface, and a raised anti-rotation block is provided at the top ring of the inner sleeve inner diameter at the shoulder sleeve (6) corresponding to the positioning hole, the bottom of the gasket (7) is fitted to the top ring surface of the inner bottle at the airtight groove, and the top of the gasket is against the top ring of the shoulder sleeve at the anti-rotation block.

3. The replacement vacuum bottle according to claim 1, Features The inner diameter of the outer sleeve opening at the bottom of the shoulder sleeve (6) is provided with screw threads (601) equidistantly distributed in a triangular shape, and a screw thread point (6012) and a short screw thread (6013) are arranged side by side below the long screw thread (6011) at the top of each group of screw threads, and the screw thread point is arranged in front of the short screw thread in the screwing direction, and a raised boss (604) is provided on the inner wall of the top of the shoulder sleeve above the screw thread; the screw threads at the top of the outer bottle (1) corresponding to the screw threads at the shoulder sleeve are arranged in three equidistantly distributed threads, and the screw threads are arranged in a triangular shape ... The bottom end corners are respectively provided with anti-rotation grooves (101), one side of the bottom of the anti-rotation groove is a vertical bar, and the top of the anti-rotation groove is a screw-in opening for the thread at the bottle mouth of the top of the outer bottle; the long thread of the shoulder sleeve is correspondingly screwed into the thread at the bottle mouth of the top of the outer bottle and locked in the anti-rotation groove of the thread, the bottle mouth of the outer bottle abuts against the boss located at the top of the shoulder sleeve, and at the same time, when the thread point of the shoulder sleeve abuts against the anti-rotation groove of the outer bottle, the shoulder sleeve continues to rotate, and the thread point of the shoulder sleeve interferes with the vertical bar that is buckled and fixed to the anti-rotation groove.

4. The replacement vacuum bottle according to claim 1, Features The outer diameter of the pump port at the top of the pump body of the pump core assembly (5), or the outer diameter of the connecting cover at the pump port at the top of the pump body, is fastened and fixed to the center hole in the shoulder sleeve (6).

5. The replacement vacuum bottle according to claim 1, Features The outer diameter of the top protrusion of the shoulder sleeve (6) of the replacement assembly (10) is fitted with a replacement cover (11), and a protrusion on one side of the replacement cover corresponds to a protrusion at the liquid outlet of the other end of the head cap (8).

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