Twist-on refill vacuum bottle

Abstract

The utility model relates to a rotary buckle type replacement vacuum bottle, which is designed to solve the technical problems of the existing similar products that the large ring design is relatively complicated and the use and production are relatively inconvenient. The main points are that the outer bottle top bottle mouth of the vacuum bottle and the outer diameter of the large ring bottom are fixed at the outer bottle top bottle mouth inner diameter sides symmetrically provided with L-shaped introduction grooves, and the outer diameter of the large ring bottom corresponding to the introduction groove is symmetrically provided with M-shaped protruding buckle ribs at the cylindrical surface; the top introduction height of the buckle rib at the large ring is lower than the protrusion height on the other side, and the height of the groove on the bottom of the outer bottle introduction groove corresponding to the buckle rib is lower than the height of the groove on the other side; a buckle groove is provided between the heights of the top two sides of the buckle rib at the large ring, and a protruding buckle point is provided at the top of the outer bottle introduction groove corresponding to the buckle groove, and the buckle rib of the large ring is fixed in the introduction groove of the outer bottle through interference deformation, and at the same time, the buckle groove at the buckle rib of the large ring is buckled with the buckle point at the introduction groove of the outer bottle.

Description

Technical Field

[0001] The utility model relates to a vacuum bottle, which is a rotary buckle type replaceable vacuum bottle. Background Art

[0002] A vacuum bottle refers to a container that can isolate gas from the outside temperature or isolate external bacteria. It is mainly composed of a cylindrical or ellipsoidal container and a piston placed 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 use atmospheric pressure to push the piston at the bottom of the bottle forward. In order to facilitate the reuse of structures such as outer bottles, some existing vacuum bottles adopt a replacement structure; such as the application number 202311424081.3 disclosed in the Chinese patent literature, the application publication date 2024.01.12, and the invention name "Replaceable Rotating Vacuum Bottle"; the bottle mouth of the first outer bottle of the vacuum bottle is connected to the large circle through the first shoulder sleeve, and a clamp ring is provided at the bottle mouth of the first outer bottle, and the ring groove of the first shoulder sleeve is offset against the limit ring of the outer diameter of the large circle, and the positioning groove at the bottle mouth of the first outer bottle is inserted through interference into the positioning column fixed to the clamp ring; or three equidistantly distributed snap plates are provided on the inner diameter edge of the top sleeve of the second shoulder sleeve, and the limit ring of the outer diameter of the large circle is offset against the limit groove of the second shoulder sleeve, and the fixing rib of the second outer bottle is inserted through interference into the fixing groove of the snap plate. The above structural design has good firmness, but the structural design is relatively complex and production is relatively inconvenient. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a rotating buckle type replacement vacuum bottle in the art, so as to solve the technical problems of the existing similar products, such as the large ring design is relatively complex and the use and production are relatively inconvenient. The purpose is achieved through the following technical solutions.

[0004] A rotary buckle type replacement vacuum bottle, the outer bottle of the vacuum bottle is provided with an inner bottle, the bottom of the inner bottle in the outer bottle is provided with a bottom cover, the inner bottle is provided with a piston, the inner diameter of the top of the inner bottle is provided with a vacuum pump core, the outer thread of the top of the inner bottle is fixed to the inner thread at the bottom of the inner center hole of the large circle, the vacuum pump core is arranged in the center hole of the large circle, the top of the outer bottle is fixed to the outer diameter of the bottom of the large circle, and the liquid inlet at the bottom of the head cap is connected to the valve stem of the vacuum pump core. The key points of its structural design are that L-shaped introduction grooves are symmetrically arranged on both sides of the inner diameter of the top of the outer bottle where the top of the outer bottle is fixed to the outer diameter of the bottom of the large circle, and M-shaped protruding buckle ribs are symmetrically arranged at the outer diameter of the bottom of the large circle corresponding to the introduction groove, and the buckle ribs of the large circle are fixed in the introduction groove of the outer bottle through interference deformation.

[0005] The top lead-in height of the buckle rib on one side of the large circle is lower than the protrusion height on the other side, and the inner height of the groove on one side of the bottom of the lead-in groove at the outer bottle corresponding to the buckle rib is lower than the inner height of the groove on the other side.

[0006] A snap groove is provided between the two sides of the top of the snap rib at the large circle, and a raised snap point (8011) is provided at the top of the introduction groove at the outer bottle corresponding to the snap groove. The snap rib of the large circle is fixed in the introduction groove of the outer bottle by interference deformation. At the same time, the snap groove at the snap rib of the large circle is engaged with the snap point at the introduction groove of the outer bottle.

[0007] The pump body of the vacuum pump core has an outer flange at the pump port, and the inner diameter of the pump port of the pump body is provided with an extended inner plug. The vacuum pump core is fixed to the center hole of the large circle by the outer diameter of the extended inner plug and the outer flange of the pump body.

[0008] A top ring which is smaller than the outer diameter and is raised is provided on the top of the large circle, the cap opening of the outer diameter of the liquid inlet hole at the bottom of the head cap is inserted into the inner diameter of the top ring of the large circle, the replacement outer cover of the replacement pump head assembly is buckled and fixed to the outer diameter of the top ring of the large circle, and the outer cover is buckled and fixed to the outer diameter of the large circle on the step at the limiting ring below the top ring. The replacement pump head assembly includes a replacement outer cover, and another combination of the head cap, the large circle, and the vacuum pump core. The replacement pump head assembly and the other piston, the inner bottle, and the bottom cover constitute a replacement assembly.

[0009] The utility model has reasonable structural design and is easy to assemble and produce, especially the replacement assembly is easy to replace; the utility model is suitable for use as a rotary buckle type replacement vacuum bottle and is a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic cross-sectional structure diagram of an embodiment of the utility model in an exploded state.

[0011] Figure 2 yes Figure 1 A partial cross-sectional structural diagram of the assembled pump head assembly and the inner bottle in the open state, in which the inner bottle, piston and bottom cover are omitted.

[0012] Figure 3 yes Figure 2 The schematic diagram of the partial cross-section structure of the usage state is shown in FIG. 1 , in which part A is framed.

[0013] Figure 4 yes Figure 3 Enlarged view of part A.

[0014] Figure 5 yes Figure 1 Schematic diagram of the three-dimensional structure of the big circle.

[0015] Figure 6 It is a schematic cross-sectional structural diagram of a replaceable pump head assembly of the replaceable assembly in an embodiment of the utility model. The dotted line in the figure is the outer cover of the pump head assembly, and the inner bottle, piston and bottom cover of the replaceable assembly are omitted.

[0016] Serial numbers and names of the accompanying drawings: 1. Outer cover, 2. Head cap, 3. Large circle, 301. Buckle rib, 302. Limiting ring, 4. Vacuum pump core, 5. Piston, 6. Inner bottle, 7. Bottom cover, 8. Outer bottle, 801. Inlet groove, 8011. Buckle point, 9. Replacement pump head assembly, 10. Replacement outer cover. Implementation

[0017] Now, in conjunction with the accompanying drawings, the structure of the utility model is further described. Figure 1-Figure 6 As shown, an inner bottle 6 is arranged in an outer bottle 8 of the vacuum bottle, a bottom cover 7 is arranged at the bottom bottle mouth of the inner bottle in the outer bottle, a piston 5 is arranged in the inner bottle, a vacuum pump core 4 is arranged at the inner diameter of the top bottle mouth of the inner bottle, the outer thread of the top bottle mouth of the inner bottle is fixed to the inner thread at the bottom inner circle of the center hole in the large circle 3, the vacuum pump core is arranged in the center hole of the large circle, the top bottle mouth of the outer bottle is fixed to the outer diameter of the bottom of the large circle, and the liquid inlet hole at the bottom of the head cap 2 is connected to the valve stem of the vacuum pump core. Its specific structure is as follows: L-shaped introduction grooves 801 are symmetrically arranged on both sides of the inner diameter of the top bottle mouth of the outer bottle where the top bottle mouth of the outer bottle and the outer diameter of the bottom of the large circle are fixed, and M-shaped raised buckle ribs 301 are symmetrically arranged on the cylindrical surface at the outer diameter of the bottom of the large circle corresponding to the introduction groove; the height of one side of the top introduction of the buckle rib at the large circle is lower than the height of the raised part on the other side, and the height of the groove on one side of the bottom of the introduction groove at the outer bottle corresponding to the buckle rib is lower than the height of the groove on the other side; a buckle groove is arranged between the heights of the two sides of the top of the buckle rib at the large circle, and a raised buckle point 8011 is arranged on the top of the introduction groove at the outer bottle corresponding to the buckle groove, and the buckle rib of the large circle is fixed in the introduction groove of the outer bottle through interference deformation, and at the same time, the buckle groove at the buckle rib of the large circle is buckled with the buckle point at the introduction groove of the outer bottle.

[0018] The pump body of the above-mentioned vacuum pump core has an outer flange at the pump port, and the inner diameter of the pump port of the pump body is provided with an inner plug that extends out. The vacuum pump core is fixed to the center hole of the large circle by the outer diameter of the inner plug that extends out and the outer flange of the pump body. The top of the large circle is provided with a top ring that is smaller than the outer diameter and is raised, and the cap opening of the outer diameter of the liquid inlet hole at the bottom of the head cap is inserted into the inner diameter of the top ring of the large circle. The replacement outer cover 10 of the replacement pump head assembly 9 is buckled and fixed to the outer diameter of the top ring of the large circle, and the outer cover is buckled and fixed to the outer diameter of the large circle at the step of the limit ring 302 below the top ring. The replacement pump head assembly includes a replacement outer cover, and another combination of the head cap, the large circle, and the vacuum pump core. The replacement pump head assembly and the other piston, inner bottle, and bottom cover form a replacement assembly.

[0019] In summary, after the vacuum bottle is rotated through the buckle slot between the buckle rib of the large circle and the introduction groove of the outer bottle, the buckle point of the large circle is locked with the buckle of the outer bottle to realize the replacement of the rotating vacuum bottle. The above replacement structure is to add a rotating buckle slot and buckle point to the outer bottle; add a buckle point that matches the bottle on the large circle; when it is rotated clockwise until it is inserted into the slot, it is in a closed state; when it is rotated counterclockwise, it is in an open state, and the replacement can be completed by simply lifting the pump head assembly upwards (the inner bottle remains fixed to the pump head assembly). In addition, the crisp sound of the rotating buckle increases the customer's experience of the replacement feel, which is achieved by using a simpler mold structure.

Claims

1. A rotary buckle type replaceable vacuum bottle, wherein an inner bottle (6) is arranged in an outer bottle (8) of the vacuum bottle, a bottom cover (7) is arranged in the bottom of the inner bottle in the outer bottle, a piston (5) is arranged in the inner bottle, a vacuum pump core (4) is arranged in the inner diameter of the top of the inner bottle, the outer thread of the top of the inner bottle is fixed to the inner thread at the bottom of the inner center hole of the large circle (3), the vacuum pump core is arranged in the center hole of the large circle, the top of the outer bottle is fixed to the outer diameter of the bottom of the large circle, and the liquid inlet hole at the bottom of the head cap (2) is connected to the valve stem of the vacuum pump core; characterized in that L-shaped introduction grooves (801) are symmetrically arranged on both sides of the inner diameter of the top of the outer bottle where the top of the outer bottle (8) and the outer diameter of the bottom of the large circle (3) are fixed, and M-shaped protruding buckle ribs (301) are symmetrically arranged on the cylindrical surface at the outer diameter of the bottom of the large circle corresponding to the introduction groove, and the buckle ribs of the large circle are fixed in the introduction groove of the outer bottle through interference deformation.

2. The rotating buckle type refillable vacuum bottle according to claim 1, characterized in that The height of the top lead-in side of the buckle rib (301) at the large circle (3) is lower than the height of the protrusion at the other side, and the height of the groove at the bottom of the lead-in groove (801) at the outer bottle (8) corresponding to the buckle rib is lower than the height of the groove at the other side.

3. The rotating buckle type refillable vacuum bottle according to claim 2, characterized in that A buckle groove is provided between the top two sides of the buckle rib (301) at the large circle (3), and a raised buckle point (8011) is provided at the top of the introduction groove (801) at the outer bottle (8) corresponding to the buckle groove. The buckle rib of the large circle is fixed in the introduction groove of the outer bottle by interference deformation, and at the same time, the buckle groove at the buckle rib of the large circle is buckled with the buckle point at the introduction groove of the outer bottle.

4. The rotating buckle type refillable vacuum bottle according to claim 1, characterized in that The pump body of the vacuum pump core (4) is provided with an outer flange at the pump port, and the inner diameter of the pump port of the pump body is provided with an extended inner plug. The vacuum pump core is fixed to the center hole of the large circle (3) by the outer diameter of the extended inner plug and the outer flange of the pump body.

5. The rotating buckle type refillable vacuum bottle according to claim 1, characterized in that The top of the large circle (3) is provided with a top circle which is smaller than the outer diameter and is raised, the cap opening of the outer diameter of the liquid inlet hole at the bottom of the head cap (2) is inserted into the inner diameter of the top circle of the large circle, the replacement outer cover (10) of the replacement pump head assembly (9) is snap-fitted and fixed to the outer diameter of the top circle of the large circle, and the outer cover (1) is snap-fitted and fixed to the outer diameter of the large circle at the step of the limiting ring (302) below the top circle. The replacement pump head assembly includes a replacement outer cover, and another combination of the head cap (2), the large circle, and the vacuum pump core (4). The replacement pump head assembly and the other piston (5), the inner bottle (6), and the bottom cover (7) form a replacement assembly.

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