A rotary replacement mechanism and a replaceable vacuum bottle containing the mechanism

Abstract

This invention discloses a rotary replacement mechanism, comprising a tray, a tray top cover, a rotating ring, four limiting components distributed on the tray, and two connecting rods distributed on the rotating ring. The structure is simple and enables the replacement of a replacement core without a pump core. The replacement operation is convenient, quick, and more environmentally friendly. This invention also discloses a replaceable vacuum bottle containing a rotary replacement mechanism. This mechanism improves upon the current situation where packaging bottles are discarded after use. After the main product is used up, only the replacement core packaging needs to be replaced for continued use. Furthermore, the replacement core does not include a pump core, resulting in fewer components, lower disposal costs, and greater environmental friendliness. The replacement operation is convenient and quick; the separate replacement core not only ensures the material is not contaminated in a sealed state but also makes replacement easier, faster, safer, and more stable.

Description

Technical Field

[0001] This invention relates to a rotary replacement mechanism and a replaceable vacuum bottle containing the mechanism. Background Technology

[0002] Existing replacement packaging materials have the following disadvantages:

[0003] (1) Novelty: The replacement structure is ordinary and monotonous, and cannot stimulate consumers' desire to buy;

[0004] (2) Environmental protection: There are many replacement parts and the reuse rate is low. For example, the replacement part usually includes the pump core, which makes the cost of discarding the part high and the packaging is not environmentally friendly enough.

[0005] (3) Convenience: The replacement process is cumbersome and inconvenient to use and replace.

[0006] (4) Safety: The stability of use and the freshness of the ingredients cannot be well guaranteed when replacing them. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rotary replacement mechanism with a simple structure that can replace a replacement core without a pump core. The replacement operation is convenient, quick, and more environmentally friendly.

[0008] Another objective of this invention is to provide a replaceable vacuum bottle with a rotary replacement mechanism. This mechanism improves upon the current situation where existing packaging bottles are discarded after use. After the main product is used up, only the replacement core needs to be replaced for continued use. Furthermore, the replacement core does not include a pump core, resulting in fewer components, lower disposal costs, and greater environmental friendliness. The replacement operation is convenient and quick. The separate replacement core ensures that the material is not contaminated in a sealed state, and replacement is also more convenient, quick, safe, and stable.

[0009] One technical solution to achieve the above objective is: a rotary replacement mechanism, comprising a tray, a tray top cover, a rotating ring, four limiting components distributed on the tray, and two connecting rods distributed on the rotating ring, wherein:

[0010] The tray has four limiting grooves distributed at 90 degrees on its circumference. Each limiting groove is provided with a limiting component. Each limiting component consists of a limiting slider, a spring, a baffle, and a connecting shaft. The limiting slider is fixed to one end of the connecting shaft, the baffle is sleeved on the other end of the connecting shaft, and the spring is sleeved on the connecting shaft. The connecting shaft passes through the through hole in the corresponding limiting groove. The limiting slider and the spring are located inside the limiting groove, and the baffle is located outside the limiting groove and is fixed by a nut.

[0011] The top of the inner wall of the tray is provided with two top cover positioning grooves distributed at 180 degrees; the bottom of the tray is provided with two rotation ring limiting grooves distributed at 180 degrees.

[0012] The tray top cover is snapped onto the top of the tray, and the bottom of the tray top cover is provided with two top cover protrusions distributed at 180 degrees. The two top cover protrusions of the tray top cover are snapped into the two top cover positioning grooves of the tray in a one-to-one correspondence.

[0013] The rotating ring is engaged with the bottom of the tray and can rotate axially. The inner wall of the rotating ring is provided with two rotating ring protrusions distributed at 180 degrees. The two rotating ring protrusions are respectively provided with two rotating ring limiting grooves on the tray. Each rotating ring protrusion moves in the corresponding rotating ring limiting groove to limit the rotation angle of the rotating ring.

[0014] The upper end face of the rotating ring is provided with four rotating ring protrusions distributed at 90 degrees. The four rotating ring protrusions on the upper end face of the rotating ring correspond one-to-one with the baffles of the limiting components in the four limiting grooves, so that when the rotating ring rotates counterclockwise, it drives the limiting slider of the limiting component to move away from the axis. When the rotating ring rotates clockwise, the limiting slider of the limiting component resets.

[0015] The outer circumference of the rotating ring is provided with two rotating ring slots distributed at 180 degrees. A connecting rod is engaged in each rotating ring slot. The connecting rod is used to connect to the outer shoulder sleeve of the replaceable vacuum bottle, so that the rotating ring rotates together when the outer shoulder sleeve rotates.

[0016] In the aforementioned rotary replacement mechanism, the rotating ring rib is located between the outer side of the baffle and the limiting groove of the corresponding limiting component. The rotating ring rib has an inclined arc-shaped structure. When the rotating ring rotates, the baffle of the limiting component moves along the outer side of the rotating ring rib, so that when the rotating ring rotates counterclockwise, it drives the limiting slider of the limiting component to move away from the axis. When the rotating ring rotates clockwise, the limiting slider of the limiting component resets under the action of the spring.

[0017] The present invention also provides a replaceable vacuum bottle, comprising the above-described rotating replacement mechanism, and further comprising an outer bottle, an inner shoulder sleeve, an outer shoulder sleeve, a large ring, a pump core, a push cap, and a replacement core assembly, wherein:

[0018] The large ring and the rotating replacement mechanism are respectively disposed in the inner shoulder sleeve, and the upper outer side of the tray top cover is engaged with the lower opening of the large ring; the upper end of the large ring is engaged with the upper opening of the inner shoulder sleeve.

[0019] The outer shoulder sleeve is rotatably fitted over the inner shoulder sleeve;

[0020] The inner shoulder sleeve has two through holes arranged at 180 degrees on its circumference, and the inner wall of the outer shoulder sleeve has two slots arranged at 180 degrees. The two connecting rods pass through the two through holes of the inner shoulder sleeve one by one and are then engaged in the corresponding slots of the outer shoulder sleeve.

[0021] The outer bottle has a cylindrical structure with openings at the top and bottom, and the upper opening of the outer bottle is fitted into the lower opening of the inner shoulder sleeve.

[0022] The middle part of the pump core is engaged within the large ring, and the push cap is located at the upper end of the pump core;

[0023] The replacement core assembly consists of an inner bottle, a pump sleeve, a piston, and a bottom cap. The pump sleeve is disposed in the upper opening of the inner bottle, the piston is disposed in the inner bottle, and the bottom cap is snapped into the lower opening of the inner bottle.

[0024] The inner bottle has an opening groove on the outside of its upper opening. The inner bottle is placed inside the outer bottle, and the opening groove of the inner bottle is engaged with four limiting components. The lower part of the pump core is interference-fitted inside the pump sleeve.

[0025] In the aforementioned replaceable vacuum bottle, the lower part of the limiting slider has a downwardly inclined surface; the upper part of the mouth annular groove has an upwardly inclined surface; when the mouth annular groove of the inner bottle contacts the limiting sliders of the four limiting components, the upwardly inclined surface of the mouth annular groove of the inner bottle moves along the downwardly inclined surface of the limiting slider, causing the spring of the limiting component to contract, and all four limiting sliders move outward. When the bottom end face of the mouth annular groove of the inner bottle passes through the upper end face of the limiting slider, the limiting slider quickly resets under the action of the spring, and the limiting slider locks the mouth annular groove of the inner bottle.

[0026] In the aforementioned replaceable vacuum bottle, the lower part of the inner wall of the outer shoulder sleeve is provided with an annular groove, and the lower part of the outer wall of the inner shoulder sleeve is provided with an annular boss. The annular boss is fitted with a clearance fit in the annular groove, and when the outer shoulder sleeve rotates axially outside the inner shoulder sleeve, it drives the rotating ring of the rotary replacement mechanism to rotate together through the connecting rod.

[0027] In the aforementioned replaceable vacuum bottle, when the replacement core assembly is not installed in the outer bottle, the upper opening of the inner bottle is snapped with a replacement core cover.

[0028] In one of the aforementioned replaceable vacuum bottles, the outer cover of the cap is fitted with a main product cover.

[0029] In the aforementioned replaceable vacuum bottle, when the replacement core assembly is removed, the outer shoulder sleeve is rotated counterclockwise, which drives the rotating ring to rotate counterclockwise via the connecting rod, thereby causing all four limiting sliders to move outward, and the replacement core assembly is dislodged; then the outer shoulder sleeve is rotated clockwise to reset, which drives the rotating ring to rotate clockwise via the connecting rod, thereby causing the four limiting sliders to reset synchronously, and then a new replacement core assembly is inserted.

[0030] The present invention relates to a rotary replacement mechanism and a replacement vacuum bottle containing the mechanism. The rotary replacement mechanism improves upon the current situation where packaging bottles are discarded after use. After the main product is used up, only the replacement core packaging needs to be replaced for continued use. Furthermore, the replacement core assembly does not include a pump core, resulting in fewer components, lower disposal costs, and greater environmental friendliness. The replacement operation is convenient and quick, as the replacement core assembly can be replaced by rotating the outer shoulder sleeve. The separate replacement core assembly not only ensures that the material is not contaminated in a sealed state, but also makes replacement more convenient, quick, safe, and stable. Attached Figure Description

[0031] Figure 1 This is a structural diagram of a rotary replacement mechanism according to the present invention;

[0032] Figure 2 This is a schematic diagram of the tray structure;

[0033] Figure 3 This is the main view of the tray;

[0034] Figure 4 This is a schematic diagram of the tray top cover structure;

[0035] Figure 5 This is a schematic diagram of the rotating ring.

[0036] Figure 6 This is a top view of the rotating ring;

[0037] Figure 7 This is a schematic diagram of the limit component.

[0038] Figure 8 This is the main view of the limiting component;

[0039] Figure 9 This is a schematic diagram of the connecting rod structure;

[0040] Figure 10 This is a schematic diagram of the replaceable vacuum bottle.

[0041] Figure 11 This is a structural diagram of the replacement core component;

[0042] Figure 12 This is a schematic diagram of the large circle structure;

[0043] Figure 13This is a schematic diagram of the inner shoulder sleeve structure;

[0044] Figure 14 This is a schematic diagram of the inner bottle. Detailed Implementation

[0045] To enable those skilled in the art to better understand the technical solution of the present invention, its specific embodiments are described in detail below with reference to the accompanying drawings:

[0046] Please see Figures 1 to 9 According to an embodiment of the present invention, a rotating replacement mechanism is composed of a tray 6, a tray top cover 5, a rotating ring 8, four limiting components 7 distributed on the tray 6, and two connecting rods 9 distributed on the rotating ring 8.

[0047] The tray 6 has four limiting grooves 61 distributed at 90 degrees on its circumference. Each limiting groove 61 is provided with a limiting component 7. Each limiting component 7 consists of a limiting slider 71, a spring 72, a baffle 73 and a connecting shaft 74. The limiting slider 71 is fixed to one end of the connecting shaft 74 and the limiting slider 71 and the connecting shaft 74 are integrally formed. The baffle 73 is sleeved on the other end of the connecting shaft 74. The spring 72 is sleeved on the connecting shaft 74. The connecting shaft 74 passes through the through hole 62 in the corresponding limiting groove 61. The limiting slider 71 and the spring 72 are located inside the limiting groove 61, and the baffle 73 is located outside the limiting groove 61 and is fixed by a nut 75.

[0048] The top of the inner wall of the tray 6 is provided with two top cover positioning grooves 63 distributed at 180 degrees; the bottom of the tray 6 is provided with two rotation ring limiting grooves 64 distributed at 180 degrees.

[0049] The pallet top cover 5 is snapped onto the top of the pallet 6. The bottom of the pallet top cover 5 is provided with two top cover protrusions 51 distributed at 180 degrees. The two top cover protrusions 51 of the pallet top cover 5 are snapped into the two top cover positioning grooves 63 of the pallet 6 in a one-to-one correspondence.

[0050] The rotating ring 8 is engaged with the bottom of the tray 6 and can rotate axially. The inner wall of the rotating ring 8 is provided with two rotating ring protrusions 81 distributed at 180 degrees. The two rotating ring protrusions 81 of the rotating ring 8 are respectively set in the two rotating ring limiting grooves 64 of the tray 6. Each rotating ring protrusion 81 moves in the corresponding rotating ring limiting groove 64, limiting the rotation angle of the rotating ring 8.

[0051] The upper surface of the rotating ring 8 is provided with four rotating ring ribs 82 distributed at 90 degrees. The four rotating ring ribs 82 on the upper surface of the rotating ring 8 correspond one-to-one with the baffles 73 of the limiting components 7 in the four limiting grooves, so that when the rotating ring 8 rotates counterclockwise, it drives the limiting sliders 71 of the limiting components to move away from the axis. When the rotating ring 8 rotates clockwise, the limiting sliders 71 of the limiting components return to their original positions. Specifically, the rotating ring ribs 82 are located between the baffles 73 of the corresponding limiting components and the outer side of the tray 6. The rotating ring ribs 82 have an inclined arc structure. When the rotating ring 8 rotates, the baffles 73 of the limiting components move along the outer side of the rotating ring ribs 82, so that when the rotating ring 8 rotates counterclockwise, it drives the limiting sliders 71 of the limiting components to move away from the axis (moving outward). When the rotating ring 8 rotates clockwise, the limiting sliders 71 of the limiting components return to their original positions under the action of the spring.

[0052] Two rotating ring slots 83 are provided on the outer circumference of the rotating ring 8 at a 180-degree angle. A connecting rod 9 is engaged in each rotating ring slot 83. The connecting rod 9 is used to connect the outer shoulder sleeve of the replaceable vacuum bottle, so that the rotating ring rotates together when the outer shoulder sleeve rotates.

[0053] The rotary replacement mechanism of the present invention is used in a replaceable vacuum bottle. The rotating ring 8 can be connected to the outer shoulder sleeve via the connecting rod 9. The upper opening of the inner bottle of the replacement core assembly is engaged in the limiting sliders 71 of the four limiting components. Rotating the outer shoulder sleeve can drive the rotating ring 8 to rotate. When the rotating ring 8 rotates counterclockwise, the four limiting sliders 71 move outward and open simultaneously, allowing the replacement core assembly to be removed. When the rotating ring 8 rotates clockwise, the four limiting sliders 71 reset simultaneously, and then a new replacement core assembly can be installed. The replacement operation is simple.

[0054] Please see Figures 10 to 14 A replaceable vacuum bottle, comprising the aforementioned rotary replacement mechanism, further comprising an outer bottle 1, an inner shoulder sleeve 41, an outer shoulder sleeve 42, a large ring 3, a pump core 43, a push cap 44, and a replacement core assembly 2, wherein:

[0055] The large ring 3 and the rotating replacement mechanism are arranged one above the other in the inner shoulder sleeve 41, and the outer upper end of the tray top cover 5 is engaged in the lower opening of the large ring 3; the upper end of the large ring 3 is engaged in the upper opening of the inner shoulder sleeve 41.

[0056] The outer shoulder sleeve 42 is rotatably fitted over the inner shoulder sleeve 41. Specifically, the lower part of the inner wall of the outer shoulder sleeve 42 is provided with an annular groove 421, and the lower part of the outer wall of the inner shoulder sleeve 41 is provided with an annular boss 411. The annular boss 411 is fitted with a clearance within the annular groove 421 (see...). Figure 1The inner shoulder sleeve 41 has two inner shoulder sleeve through holes 412 arranged at 180 degrees on its circumference, and the inner wall of the outer shoulder sleeve 42 has two outer shoulder sleeve slots arranged at 180 degrees. The two connecting rods 9 pass through the two inner shoulder sleeve through holes 412 one by one and are engaged in the corresponding outer shoulder sleeve slots. When the outer shoulder sleeve 42 rotates axially outside the inner shoulder sleeve 41, it drives the rotating ring 8 of the rotation replacement mechanism to rotate together through the connecting rods 9.

[0057] The outer bottle 1 has a cylindrical structure with openings at the top and bottom. The upper opening of the outer bottle 1 is inserted into the lower opening of the inner shoulder sleeve 41. The middle part of the pump core 43 is inserted into the large ring 3, and the button cap 44 is set at the upper end of the pump core 43. The outer part of the button cap 44 is covered by the main product cover 10.

[0058] The replacement core assembly 2 consists of an inner bottle 21, a pump sleeve 22, a piston 23, and a bottom cover 24. The pump sleeve 22 is located inside the upper opening of the inner bottle 21, the piston 23 is located inside the inner bottle 21, and the bottom cover 24 is snapped into the lower opening of the inner bottle 21.

[0059] An annular groove 211 is provided on the outer side of the upper opening of the inner bottle 21. The inner bottle 21 is placed inside the outer bottle 1, and the annular groove 21 of the inner bottle 21 is engaged in the four limiting components 7. The lower part of the pump core 43 is interference-fitted inside the pump sleeve 22.

[0060] Specifically, the lower part of the limiting slider 71 has a downward inclined surface 711; the upper part of the mouth annular groove 211 has an upward inclined surface 212; when the mouth annular groove 211 of the inner bottle 21 touches the limiting slider 71 of the four limiting components, the upward inclined surface 212 of the mouth annular groove of the inner bottle 21 moves along the downward inclined surface of the limiting slider 71, causing the spring 72 of the limiting component 7 to contract, and all four limiting sliders 71 move outward. When the bottom end face of the mouth annular groove of the inner bottle 21 passes through the upper end face of the limiting slider 71, the limiting slider 71 quickly resets under the action of the spring 72, and the limiting slider 71 locks the mouth annular groove 211 of the inner bottle.

[0061] When the replacement core assembly 2 is not installed in the outer bottle, the upper opening of the inner bottle is engaged with the replacement core cover 25, which can form a seal for the replacement core assembly 2 and prevent the material from being contaminated.

[0062] During installation, the replaceable vacuum bottle of the present invention is assembled by first assembling the components of the rotary replacement mechanism except for the connecting rod 9, namely the tray, tray top cover, rotating ring, and four limiting components. The upper outer side of the tray top cover 5 is engaged with the lower inner wall of the large ring 3. Then, the whole assembly is inserted into the inner shoulder sleeve 41, and the upper outer side of the large ring 3 is engaged with the inner shoulder sleeve 41. At this time, the connecting rod 9 is passed through the inner shoulder sleeve through holes 412 on both sides of the inner shoulder sleeve 41. One end of the connecting rod 9 is inserted into the rotating ring slot 83 on the outer side of the rotating ring 8. Then, the outer shoulder sleeve 42 is put on from the upper end of the inner shoulder sleeve 41. Note that the two outer shoulder sleeve slots distributed at 180 degrees on the inner wall of the outer shoulder sleeve 42 are engaged with the protruding parts of the other ends of the two connecting rods 9 respectively. The outer shoulder sleeve 42 and the inner shoulder sleeve 41 are engaged through the gap of the annular groove boss, and the outer shoulder sleeve 42 can rotate axially on the inner shoulder sleeve. At the same time, the rotating ring 8 of the rotary replacement mechanism can be rotated together through the connecting rod 9. Then assemble the outer bottle 1, pump core 43, push cap 44, main cover 10 and other parts. At this point, except for the replacement core assembly 2, all other parts are assembled.

[0063] When installing the replacement core assembly, first open the replacement core cover 25 of the replacement core assembly, and then push it upward from the lower opening of the outer bottle 1. When the mouth annular groove 211 of the inner bottle 21 touches the limiting slider 71 of the limiting assembly 7, the interaction between the upper inclined surface 212 of the mouth annular groove 211 and the lower inclined surface 711 of the limiting slider 71 causes the spring 72 of the limiting assembly to contract, and all four limiting sliders 71 move outward from the bottle. When the bottom end of the mouth annular groove 211 of the inner bottle passes the upper end of the limiting slider 71, the limiting slider 71 quickly returns to its original position under the action of the spring 72. At this time, the limiting slider 71 locks the mouth annular groove 711 of the inner bottle, and at the same time, the lower part of the pump core is inserted into the pump sleeve 22 with an interference fit, completing the installation of the replacement core assembly.

[0064] When the material in the inner bottle is used up and the replacement core assembly needs to be removed, simply hold the bottom of the entire packaging material with your left hand and rotate the outer shoulder sleeve 42 counterclockwise with your right hand. The outer shoulder sleeve 42 drives the rotating ring 8 to rotate counterclockwise through the connecting rod 9. The four rotating ring protrusions 82 on the upper end of the rotating ring 8 correspond one-to-one with the baffles 73 of the four limiting components 7, so that when the rotating ring 8 rotates counterclockwise, it drives the limiting slider 71 of the limiting component to move away from the axis (moving outward). The limiting slider 71 opens, the inner bottle 21 falls into the left hand, and the replacement core assembly 2 can be removed.

[0065] Similarly, rotating the outer shoulder sleeve 42 clockwise resets it. The outer shoulder sleeve 42 drives the rotating ring 8 to rotate clockwise through the connecting rod 9. The limit slider 71 resets under the action of the spring. Then, inserting a new replacement core assembly repeats the above replacement core assembly insertion action. The replacement action is simple, quick, convenient and hygienic.

[0066] In summary, the rotary replacement mechanism and the replaceable vacuum bottle containing the mechanism of the present invention improve the current situation of discarding packaging bottles after use. After the main product is used up, only the replacement core packaging needs to be replaced for continued use. Furthermore, the replacement core does not include the pump core, resulting in fewer parts, which makes the cost of discarding the parts lower and more environmentally friendly. The replacement operation is convenient and quick. The separate replacement core not only prevents the material from being contaminated in a sealed state, but also makes replacement more convenient, quick, safe and stable.

[0067] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any variations or modifications to the above embodiments that are within the spirit and essence of the present invention will fall within the scope of the claims of the present invention.

Claims

1. A rotary replacement mechanism, characterized by, The tray, tray top cover, rotating ring, four limiting components distributed on the tray and two connecting rods distributed on the rotating ring are composed, wherein: The tray has four limiting grooves distributed at 90 degrees on the circumference, one limiting component is arranged in each limiting groove, each limiting component is composed of a limiting slider, a spring, a baffle and a connecting shaft, the limiting slider is fixed at one end of the connecting shaft, the baffle is sleeved at the other end of the connecting shaft, the spring is sleeved on the connecting shaft, the connecting shaft passes through the through hole in the corresponding limiting groove, the limiting slider and the spring are located on the inner side of the limiting groove, and the baffle is located on the outer side of the limiting groove and is fixed by a nut; Two top cover positioning grooves distributed at 180 degrees are arranged at the top end of the inner wall of the tray, and two rotating ring limiting grooves distributed at 180 degrees are arranged at the bottom end of the tray, The tray top cover is clamped at the top end of the tray, two top cover protrusions distributed at 180 degrees are arranged at the bottom end of the tray top cover, and the two top cover protrusions of the tray top cover are clamped in the two top cover positioning grooves of the tray one by one; The rotating ring is clamped at the bottom end of the tray and can be axially rotated, the inner wall of the rotating ring is provided with two rotating ring protrusions distributed at 180 degrees, and the two rotating ring protrusions of the rotating ring are arranged in the two rotating ring limiting grooves of the tray one by one, and each rotating ring protrusion moves in the corresponding rotating ring limiting groove to limit the rotating angle of the rotating ring; Four rotating ring protrusions distributed at 90 degrees are arranged on the upper end surface of the rotating ring, the four rotating ring protrusions on the upper end surface of the rotating ring correspond to the baffles of the limiting components in the four limiting grooves one by one, so that when the rotating ring rotates counterclockwise, the limiting slider of the limiting component is driven to move away from the shaft center, and when the rotating ring rotates clockwise, the limiting slider of the limiting component is reset; Two rotating ring clamping grooves distributed at 180 degrees are arranged on the outer circumference of the rotating ring, one connecting rod is clamped in each rotating ring clamping groove, and the connecting rod is used for connecting the outer shoulder sleeve of the replaceable vacuum bottle, so that when the outer shoulder sleeve rotates, the rotating ring is driven to rotate.

2. A rotary replacement mechanism as claimed in claim 1, characterized in that The rotating ring protrusion is located between the baffle of the corresponding limiting component and the outer side of the limiting groove, the rotating ring protrusion has an inclined arc structure, when the rotating ring rotates, the baffle of the limiting component moves along the outer side of the rotating ring protrusion, so that when the rotating ring rotates counterclockwise, the limiting slider of the limiting component is driven to move away from the shaft center, and when the rotating ring rotates clockwise, the limiting slider of the limiting component is reset under the action of the spring.

3. A replaceable vacuum bottle characterized by, The rotating replacement mechanism comprises a rotating ring, a tray, a tray top cover, four limiting components distributed on the tray and two connecting rods distributed on the rotating ring, wherein: The tray, the tray top cover, the rotating ring, the four limiting components distributed on the tray and the two connecting rods distributed on the rotating ring are composed, wherein: The large ring and the rotating replacement mechanism are arranged in the inner shoulder sleeve respectively, and the upper end outside of the tray top cover is clamped in the lower end opening of the large ring; and the upper end of the large ring is clamped in the upper end opening of the inner shoulder sleeve; The outer shoulder sleeve is rotatably sleeved outside the inner shoulder sleeve; The outer shoulder sleeve is rotatably sleeved outside the inner shoulder sleeve; The inner shoulder sleeve is provided with two inner shoulder sleeve through holes distributed at 180 degrees on the circumference, and the inner wall of the outer shoulder sleeve is provided with two outer shoulder sleeve clamping grooves distributed at 180 degrees, and two connecting rods are correspondingly clamped in the outer shoulder sleeve clamping grooves through the inner shoulder sleeve through holes. The outer bottle is in a cylindrical structure with upper and lower openings, and the upper opening of the outer bottle is clamped in the lower opening of the inner shoulder sleeve. The middle part of the pump core is clamped in the large circle, and the pressing cap is arranged at the upper end of the pump core. The replacement core assembly is composed of an inner bottle, a pump sleeve, a piston and a bottom cover, the pump sleeve is arranged in the upper opening of the inner bottle, the piston is arranged in the inner bottle, and the bottom cover is clamped in the lower opening of the inner bottle. The outer side of the upper opening of the inner bottle is provided with a mouth ring groove, the inner bottle is arranged in the outer bottle, and the mouth ring groove of the inner bottle is clamped in the four limiting assemblies, and the lower part of the pump core is arranged in the pump sleeve in interference fit.

4. A replaceable vacuum bottle as claimed in claim 3, characterised in that, The lower part of the limiting slide has a lower inclined surface, the upper part of the mouth ring groove has an upper inclined surface, when the mouth ring groove of the inner bottle collides with the limiting slide of the four limiting assemblies, the upper inclined surface of the mouth ring groove of the inner bottle moves along the lower inclined surface of the limiting slide, so that the spring of the limiting assembly is contracted, and the four limiting slides move outward, when the bottom end surface of the mouth ring groove of the inner bottle passes through the upper end surface of the limiting slide, the limiting slide is quickly reset under the action of the spring, and the limiting slide clamps the mouth ring groove of the inner bottle.

5. A replaceable vacuum bottle as claimed in claim 3, wherein, The lower part of the inner wall of the outer shoulder sleeve is provided with an annular groove, the lower part of the outer wall of the inner shoulder sleeve is provided with an annular protrusion, the annular protrusion is arranged in the annular groove in clearance fit, and when the outer shoulder sleeve rotates axially outside the inner shoulder sleeve, the connecting rod drives the rotating ring of the rotating replacement mechanism to rotate.

6. A replaceable vacuum bottle as claimed in claim 3, wherein, When the replacement core assembly is not installed in the outer bottle, the upper opening of the inner bottle is clamped with a replacement core cover.

7. A replaceable vacuum flask as claimed in any one of claims 3 to 6, wherein, The outer part of the pressing cap is covered with a main product cover.

8. A replaceable vacuum bottle as claimed in claim 3, characterised in that, When the replacement core assembly is taken out, the outer shoulder sleeve is counterclockwise rotated, the connecting rod drives the rotating ring to rotate counterclockwise, and then drives the four limiting slides to move outward, and the replacement core assembly is separated; then the outer shoulder sleeve is clockwise rotated to reset, the connecting rod drives the rotating ring to rotate clockwise, and then drives the four limiting slides to reset synchronously, and a new replacement core assembly is installed.

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