Rotary cover opening and temperature display heat preservation kettle

Abstract

The utility model discloses a rotary type uncapping temperature display heat preservation kettle, the kettle body and the cover, be equipped with circular installation cavity in the cover, and the installation cavity is equipped with the shaft sleeve, and the periphery of shaft sleeve is equipped with the rotating part, and the rotating part rotates around the shaft sleeve periphery when receiving the rotating force, and can be reset automatically after releasing the force, and the upper end of rotating part is located in the cover outside and forms the drive part for the finger to pinch the rotation, and at least two slide rails that are evenly distributed along the shaft sleeve periphery and are radially through the outer wall of cover are arranged in the installation cavity, and the lock catch spare is slidably arranged in each slide rail, and the elastic part no.

Description

Technical Field

[0001] This utility model relates to the field of thermos flask technology, and in particular to a rotary-opening thermos flask with temperature display. Background Technology

[0002] A thermos is a daily-use insulated container consisting of a double-layered metal or glass vacuum liner and a plastic or metal outer shell. The spout and lid typically use a continuous internal and external threaded connection to achieve a repeatedly openable and closed seal. In use, the user aligns the lid with the spout and rotates it several times to gradually tighten the threads, thus compressing the sealing ring to achieve the purpose of preventing water and air from entering and maintaining the temperature. Conversely, rotating in the opposite direction allows the lid to be removed and the water poured out. This structure has been a standard solution in the industry since the mid-20th century, with mature molds and low cost.

[0003] However, as people's demands for convenience, hygiene, and durability increase, the inherent defects of traditional threaded connections are becoming increasingly apparent. First, the tightening stroke is long, requiring users to use both hands to rotate 3-5 times to open or seal, a cumbersome process. If the tightening force is too great, the resistance increases sharply when opening again, making it impossible for the elderly or children to unscrew. Forced operation can also easily cause permanent thread damage such as stripping or chipping. Second, during rotation, the direct friction between the lid and the metal or plastic threads of the spout not only produces a harsh noise but also, over time, causes the thread gaps to gradually widen, reducing the compression of the sealing ring and ultimately leading to a shortened heat retention time and leaks. Third, when opening the lid, fingers inevitably come into contact with the exposed threads and the edge of the spout, where dirt and bacteria easily accumulate, posing a significant hygiene hazard. At the same time, cleaning the threaded area is difficult, and residue and hand oils can cross-contaminate the surface, further reducing user experience and drinking water safety.

[0004] Therefore, a non-threaded connection solution that enables quick opening is needed to simultaneously address the three major pain points of cumbersome operation, wear and leakage, and hygiene concerns. Utility Model Content

[0005] This utility model addresses the problems of cumbersome operation, wear and leakage, and hygiene hazards associated with threaded connections. The technical problem this utility model aims to solve is to provide a rotary-opening, temperature-displaying thermos to resolve the aforementioned issues.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: It includes a pot body and a lid body. The lid body has a circular mounting cavity coaxial with the lid body's axis. A bushing is located in the center of the mounting cavity. A rotating component is fitted around the bushing. When subjected to rotational force, the rotating component rotates around the bushing circumferentially. After the force is released, it automatically resets. The upper end of the rotating component is located outside the lid body, forming a driving part for finger rotation. At least two slide rails are provided inside the mounting cavity, evenly distributed along the circumference of the bushing and radially penetrating the outer wall of the lid body. Each slide rail has a uniform sliding surface... A locking element is provided, and an elastic element is provided between the locking element and the cover bushing. The elastic element always applies a radially outward pushing force to the locking element, keeping its end protruding. The lower end of the rotating element is slidably connected to each locking element. When a rotational force is applied to the driving part, the rotating element rotates around the bushing and simultaneously pulls all the locking elements radially back into the mounting cavity along the slide rail. After the force is released, the rotating element automatically resets, and each locking element, under the action of the elastic element, simultaneously extends radially outward again and locks into the preset locking position on the upper inner wall of the pot body.

[0007] A further preferred embodiment of this utility model is as follows: the rotating component includes a rotating disk, a rotating sleeve, and two elastic elements equal in number to the locking elements. The top of the cover body has a shaft hole concentric with the bushing. The rotating disk is sleeved on the outer periphery of the bushing. The lower end of the rotating sleeve passes through the shaft hole, is sleeved on the bushing, and is snapped and fixed to the rotating disk. The portion of the rotating sleeve outside the cover body forms the driving part. Each elastic element is disposed between the rotating disk and a corresponding locking element. One end of the elastic element is fixed to the rotating disk, and the other end acts on the locking element to provide a restoring force to the rotating disk after it rotates.

[0008] A further preferred embodiment of this utility model is as follows: the locking element is provided with an arc-shaped sliding hole, the distance of the arc-shaped sliding hole from one end to the other end from the center of the bushing gradually increases, and the bottom of the rotating disk is provided with a guide post extending into the arc-shaped sliding hole. When a rotational force is applied to the driving part, the rotating disk rotates around the bushing, the guide post slides along the arc-shaped hole and forces the locking element to overcome the elastic force of the first elastic element and retract radially inward into the mounting cavity through the inclined surface of the hole wall; after the force is released, the second elastic element drives the rotating disk to rotate in the opposite direction, the guide post slides along the arc-shaped hole back to the initial position, and the locking element extends radially outward again with the assistance of the first elastic element and is locked in the locking position.

[0009] A further preferred embodiment of this utility model is that the number of slide rails and locking fasteners are both two, and they are arranged symmetrically at 180° with the axis of the bushing as the center.

[0010] A further preferred embodiment of this utility model is as follows: the elastic element is a return spring, the lower end of the locking element is provided with a limiting post, one end of the return spring is sleeved on the limiting post, and the other end abuts against the side wall of the bushing.

[0011] A further preferred embodiment of this utility model is as follows: an annular sleeve is provided at the spout of the kettle body, the upper end of the annular sleeve is welded to the top of the spout, the middle section of the annular sleeve protrudes into the kettle body to form an annular rib, the lower end face of the annular rib forms the locking position with the inner wall of the annular sleeve, a water-blocking silicone is provided between the annular sleeve and the inner wall of the spout, and the water outlet of the kettle body is located below the water-blocking silicone.

[0012] A further preferred embodiment of this utility model is as follows: the cover body is provided with a water outlet channel located below the mounting cavity and communicating with the inside of the kettle body. The water outlet of the water outlet channel is connected to the spout. A water sealing component is provided at the water inlet of the water outlet channel. The water sealing component is provided with a driving component for driving the water sealing component to open or close the water inlet. The upper end of the driving component passes through the bushing and extends into the rotating sleeve. The driving component can move along the axial direction of the bushing shaft and the rotating sleeve.

[0013] A further preferred embodiment of this utility model is as follows: A limiting sleeve is provided inside the rotating sleeve; the lower end of the limiting sleeve extends into the bushing and is threadedly connected to the bushing; an annular platform is provided at the bottom of the bushing; the driving assembly includes a sliding column, a sliding sleeve, a locking sleeve, and a spring; the bottom of the sliding column is slidably connected to the water-sealing assembly and can drive the water-sealing assembly to move axially; a limiting block is detachably provided at the upper end of the sliding column; the spring is fitted onto the sliding column and abuts against the annular platform and the limiting block; the limiting sleeve contains… The wall is evenly provided with vertical sliding grooves. The sliding sleeve and the locking sleeve are respectively provided with slider one and slider two that can slide along the vertical sliding grooves. The lower end face of the sliding sleeve is provided with a V-shaped toothed ring. The outer wall of the locking sleeve is provided with helical teeth that cooperate with the inclined surface of the V-shaped teeth. A "Z"-shaped track that cooperates with the inclined surface of the helical teeth is provided between the vertical sliding grooves. The "Z"-shaped track has a limiting point. The height of the limiting point is lower than the height of the helical teeth in the vertical sliding groove. The lower end of the locking sleeve abuts against the upper end of the sliding column.

[0014] A further preferred embodiment of this utility model is as follows: the water sealing component includes an annular sealing block, a water-sealing silicone covering the outer edge of the sealing block, and a second spring. A connecting sleeve is provided in the middle of the sealing block and extends into the water inlet. An annular platform is provided inside the connecting sleeve. The upper end of the second spring abuts against the lower surface of the annular platform, and the lower end abuts against the upper surface of the annular platform. The lower end sidewall of the sliding column has a limiting plate extending outward. The upper surface of the limiting plate abuts against the lower surface of the edge of the through hole. The upper end of the sliding column slides sequentially through the through hole in the middle of the annular platform, the second spring, the first annular platform, and the first spring and connects to the limiting block. The elastic force of the first spring is greater than that of the second spring. Under normal conditions, the first spring pulls the sealing block upward through the limiting plate of the sliding column, so that the water-sealing silicone presses against the end face of the water inlet to achieve a seal. At this time, the second spring is in a compressed state. When the driving component is pressed down, the sliding column moves down and drives the limiting plate away from the through hole. The second spring releases its elastic force and pushes the annular sealing block downward, so that the water-sealing silicone separates from the end face of the water inlet, and the water outlet channel is opened.

[0015] A further preferred embodiment of this utility model is as follows: the center of the drive assembly has a through channel along the axial direction, and a temperature sensing probe with its lower end extending into the body of the kettle is provided in the channel. The upper end of the temperature sensing probe is provided with a temperature display integrally formed with the temperature sensing probe. The temperature display is exposed on the top surface of the drive part and also serves as a button for operating the drive assembly.

[0016] Compared with the prior art, the present invention has the following advantages: 1. By installing a rotating component around the outer circumference of the bushing, which is slidably connected to the locking components, applying rotational force to the rotating component synchronously pulls all the locking components radially back into the mounting cavity along the slide rail. Through the cooperation of the locking components and the elastic component, when the rotational force is released from the driving part, the rotating component automatically resets, and each locking component, under the action of the elastic component, simultaneously extends radially outward again and engages in the preset locking position on the upper inner wall of the kettle body. This solution releases the locking components from the kettle lid by applying rotational force to the driving part of the rotating component. The driving part rotates less than half a turn during rotation, achieving "one-twist opening," eliminating the need for the traditional 3-5 turns of repeated screwing, making operation quick and effortless.

[0017] 2. The locking mechanism is radially engaged with the kettle body, eliminating the risk of thread wear, stripping, and chipping. The threadless design also eliminates concerns about dirt and bacteria accumulating in the thread gaps. Furthermore, the hands do not need to touch the kettle spout when opening the lid, preventing contamination of the spout by the hands.

[0018] 3. The rotating part automatically resets, causing the locking part to extend outward and engage in the locking position, forming a "lock when released" mechanism, which avoids water and air leaks caused by improper tightening. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present invention; Figure 2 This is a top view of a preferred embodiment of the present invention; Figure 3 This is a preferred embodiment of the present utility model. Figure 2 Sectional view at point AA; Figure 4 This is a preferred embodiment of the present utility model. Figure 3A magnified view of a section at point C; Figure 5 This is an exploded view of the rotating disk and locking element according to a preferred embodiment of the present invention; Figure 6 This is one of the exploded views of a preferred embodiment of the present invention; Figure 7 This is a preferred embodiment of the present utility model. Figure 2 Sectional view at point BB; Figure 8 This is a preferred embodiment of the present utility model. Figure 7 A magnified view of a section at point D; Figure 9 This is a three-dimensional structural diagram of the limiting sleeve according to a preferred embodiment of the present utility model; Figure 10 This is a perspective view of the assembly of the sliding sleeve and the locking sleeve according to a preferred embodiment of the present invention. Figure 11 This is the second exploded view of a preferred embodiment of the present invention.

[0021] In the diagram: 1. Kettle body; 11. Inner liner; 12. Outer liner; 13. Insulation layer; 15. Locking position; 16. Annular sleeve; 161. Annular rib; 18. Water outlet channel; 19. Spout; 2. Lid; 21. Mounting cavity; 211. Slide rail; 22. Bushing; 221. Annular platform; 23. Silicone ring; 3. Rotating component; 31. Rotating disk; 311. Strip hole; 312. Annular groove; 313. Slot; 32. Rotating sleeve; 321. Drive unit; 322. Elastic convex ring; 33. Torsion spring; 331. Snap-fit ​​part; 34. Guide post; 4. Locking component; 41. Snap-fit ​​groove; 42. Arc-shaped sliding hole; 44. Limiting post; 5. Elastic Component 1; 6. Water sealing assembly; 61. Sealing block; 62. Water sealing silicone; 63. Spring 2; 65. Connecting sleeve; 66. Annular platform 2; 67. Through hole; 7. Drive assembly; 71. Sliding column; 711. Vertical guide groove; 712. Limiting groove; 714. Limiting plate; 715. Sealing silicone; 72. Sliding sleeve; 721. Slider 1; 722. Gear ring; 73. Locking sleeve; 731. Helical tooth; 732. Slider 2; 74. Spring 1; 75. Limiting block; 751. Limiting protrusion; 8. Limiting sleeve; 81. Vertical sliding groove; 82. "Z" shaped track; 83. Limiting point; 9. Temperature sensor; 10. Temperature display. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0023] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0024] This embodiment mainly describes a rotary-opening, temperature-indicating thermos flask, as detailed below: like Figures 1 to 11 As shown, the rotary-type thermos with temperature display includes a body 1 and a lid 2. The body 1 is welded together from an inner liner 11 and an outer liner 12. A vacuum-sealed insulation layer 13 lies between the inner liner 11 and the outer liner 12. The lid 2 is located at the mouth of the body 1 to seal the mouth. The lid 2 has a circular mounting cavity 21 coaxial with its axis. A bushing 22 is located in the center of the mounting cavity 21, and a rotating component 3 is fitted around the bushing 22. When subjected to rotational force, the rotating component 3 rotates around the bushing 22 and automatically resets after the force is released. The upper end of the rotating component 3 is located outside the lid 2, forming a drive part 321 for finger rotation. The mounting cavity 21 also has at least two slide rails 211 evenly distributed circumferentially along the bushing 22 and radially penetrating the outer wall of the lid 2. A locking element 4 is slidably installed in each slide rail 211. An elastic element 5 is provided between the locking element 4 and the bushing 22, and the elastic element 5 always applies radial pressure to the locking element 4. The outward thrust keeps the end of the locking element 4 protruding; the lower end of the rotating element 3 is slidably connected to each locking element 4. When a rotational force is applied to the drive part 321, the rotating element 3 rotates around the bushing 22 and simultaneously pulls all the locking elements 4 back into the mounting cavity 21 along the slide rail 211; after the drive part 321 releases the force, the rotating element 3 automatically resets, and each locking element 4, under the action of the elastic element 5, extends radially outward again and is locked into the locking position 15 on the upper inner wall of the pot body 1, realizing the quick locking or unlocking of the lid 2 and the pot body 1, eliminating the tediousness of traditional multi-turn screw engagement, and avoiding thread wear and dirt accumulation.

[0025] This solution unlocks the lid 2 by applying rotational force to the drive unit 321 of the rotating component 3. The drive unit 321 rotates less than half a turn during rotation, achieving "one-twist opening," eliminating the need for the traditional 3-5 turns of repeated screwing. This makes operation quick and effortless. Furthermore, the operation does not involve contact with the lid opening, and the absence of threads eliminates concerns about thread wear and bacteria buildup. Simultaneously, the locking component 4 and the lid 1 are radially engaged, eliminating thread friction and the risk of thread wear, stripping, or chipping. The threadless design also eliminates concerns about bacteria buildup in thread gaps, and the lid 2 can be opened without touching the lid opening, preventing hand contamination. In addition, the automatic reset of the rotating component 3 causes the locking component 4 to extend outward and engage with the locking stop 15, forming a "release and lock" mechanism, preventing leaks caused by improper tightening.

[0026] Specifically, the rotating component 3 consists of a rotating disk 31, a rotating sleeve 32, and an elastic component 33 of the same number as the locking component 4. The top of the cover 2 has a shaft hole concentric with the bushing 22. The rotating disk 31 is fitted around the outer periphery of the bushing 22. The lower end of the rotating sleeve 32 passes through the shaft hole, is fitted onto the bushing 22, and is snapped and fixed to the rotating disk 31. The part of the rotating sleeve 32 located outside the cover 2 forms the driving part 321. The connection between the rotating disk 31 and the rotating sleeve 32 is as follows: the lower side wall of the rotating sleeve 32 is provided with an outwardly protruding ridge. The side wall of the rotating disk 31 fitted onto the bushing 22 is provided with a groove 313 that cooperates with the ridge. The ridge and the groove 313 cooperate to achieve snap-fit ​​fixation. At the same time, the lower side wall of the rotating sleeve 32 is provided with an annular groove 312. The inner side wall of the rotating disk 31 is provided with a protruding elastic ring 322. The rotating disk 31 is snapped into the annular groove 312 by the elastic ring 322. The second elastic element 33 is used to provide a restoring force for the rotating disk 31. Each second elastic element 33 is located between the rotating disk 31 and a corresponding locking element 4, with one end of the second elastic element 33 fixed to the rotating disk 31 and the other end fixed to the locking element 4. The second elastic element 33 can be a spring or a torsion spring, preferably a torsion spring 33. A V-shaped snap-fit ​​portion 331 extending towards the locking element 4 is provided between the two free ends of the torsion spring 33. The locking element 4 is provided with a snap-fit ​​groove 41 that cooperates with the snap-fit ​​portion 331. The rotating disk 31 is provided with a strip hole 311 through which the snap-fit ​​portion 331 passes. Both ends of the torsion spring 33 are fixed to the rotating disk 31. When the rotating disk 31 is driven to rotate, the torsion spring 33 stores force. After releasing the force, the torsion spring 33 releases and drives the rotating disk 31 to rotate in the opposite direction, thereby driving the rotating sleeve 32 and the drive part 321 to automatically reset, so that the locking part 4 extends outward again. The design of the elastic part 33 ensures that the cover 2 can automatically return to the locked state after each release, improving the convenience and reliability of operation.

[0027] Specifically, the locking element 4 has an arc-shaped sliding hole 42, the distance from the center of the bushing 22 to the other end of the arc-shaped sliding hole 42 gradually increases, and the bottom of the rotating disk 31 is provided with a guide post 34 that extends into the arc-shaped sliding hole 42; when the user applies a rotational force to the drive unit 321, the rotating disk 31 rotates around the bushing 22, the guide post 34 slides along the arc-shaped sliding hole 42 and forces the locking element 4 to overcome the elastic element 5 and retract into the mounting cavity 21, thereby disengaging from the locking position 15 of the kettle body 1; after the force is released, the elastic element 33 drives the rotating disk 31 to rotate in the opposite direction, and the guide post 34 slides back to the initial position along the arc-shaped sliding hole 42. At the same time, the locking element 4 extends outward again with the assistance of the elastic element 5 and engages in the locking position 15. This structure realizes convenient one-handed operation of "opening with a turn and locking with release", and the cooperation between the arc-shaped sliding hole 42 and the guide post 34 converts the rotational motion into synchronous radial movement of the locking element 4, resulting in a compact structure and smooth operation.

[0028] Specifically, there are two slide rails 211 and two locking fasteners 4, which are arranged symmetrically at 180° around the outer circumference of the bushing 22. This ensures that the lid 2 is locked with balanced force. This design avoids the problem of misaligned sealing or water leakage caused by force on one side. At the same time, the synchronous extension and retraction of the double locking fasteners ensures smoother opening and closing and more reliable locking. Even if the kettle body 1 is full of hot water, it can withstand the internal steam pressure without loosening.

[0029] Specifically, the elastic element 5 adopts a return spring, and the lower end of the locking element 4 is provided with a limiting post 44. One end of the return spring is sleeved on the limiting post 44, and the other end abuts against the side wall of the bushing 22. The return spring provides a continuous and stable radial thrust to the locking element 4, ensuring that the locking element 4 always extends outward and reliably engages with the locking position 15 of the pot body 1 when there is no rotational driving force. The limiting post 44 prevents the return spring from bending to the side, improves the spring life, and the structure is simple to assemble, low in cost, and easy to mass-produce.

[0030] Specifically, an annular sleeve 16 is welded to the spout of the kettle body 1. The upper end of the annular sleeve 16 is welded and fixed to the top of the spout. An annular rib 161 is punched into the middle section of the annular sleeve 16. The lower end face of the annular rib 161 and the inner wall of the annular sleeve 16 together form a locking position 15. A water-blocking silicone 17 is provided between the annular sleeve 16 and the inner wall of the spout. The water-blocking silicone 17 is located above the locking position 15, and the actual water outlet of the kettle body 1 is located below the water-blocking silicone 17. When pouring water, the hot water first flows downward through the inside of the water-blocking silicone 17 and then turns back upward to flow out from the spout 19, forming an anti-overflow bend to prevent hot water from splashing along the outer wall of the spout when the lid is opened. At the same time, the water-blocking silicone 17 blocks the steam from directly impacting the plastic lid 2, improving the heat preservation performance and reducing the risk of scalding.

[0031] Specifically, the lid 2 has a water outlet channel 18 below the mounting cavity 21 that communicates with the inner cavity of the kettle body 1. The outlet of the water outlet channel 18 is connected to the spout 19. A water sealing component 6 is provided at the inlet of the water outlet channel 18. A drive component 7 is connected to the water sealing component 6. The drive water sealing component 6 is used to drive the water sealing component 6 to move axially to open or close the inlet. The upper end of the drive component 7 passes through the bushing 22 and extends into the rotating sleeve 32. The drive component 7 can move up and down axially. The user only needs to press down on the top of the drive component 7 with one finger to open the water sealing component 6. Hot water goes directly to the spout 19 through the water outlet channel 18. Pressing down again closes the spout, realizing the convenient water dissipation of "press to pour, press again to stop". This avoids the heat loss and steam blowout problems of traditional screw-top kettles where the lid 2 needs to be completely unscrewed before water can be poured.

[0032] Specifically, the rotating sleeve 32 is provided with a limiting sleeve 8, the lower end of which extends into the bushing 22 and is threadedly connected to the bushing 22. The bottom of the bushing 22 is provided with an annular platform 221. The driving assembly 7 includes a sliding column 71, a sliding sleeve 72, a locking sleeve 73, and a spring 74. The bottom of the sliding column 71 is connected to the water sealing assembly 6 and can drive the water sealing assembly 6 to move axially. The upper end of the sliding column 71 is detachably provided with a limiting block 75. The spring 74 is sleeved on the sliding column 71 and abuts between the annular platform 221 and the limiting block 75, providing an upward restoring force for the sliding column 71. Vertical grooves 81 are evenly distributed on the inner wall of the limiting sleeve 8. The sliding sleeve 72 and the locking sleeve 73 are respectively provided with a slider 721 and a slider 732 that can slide along the vertical grooves 81. The lower end face of the sliding sleeve 72 is provided with a V-shaped toothed ring 722. The outer wall of the locking sleeve 73 is provided with a groove that cooperates with the inclined surface of the V-shaped tooth. Between the helical tooth 731 and the vertical slide groove 81, there is a "Z"-shaped track 82 that mates with the inclined surface of the helical tooth 731. The "Z"-shaped track 82 has a limiting point 83. The height of the limiting point 83 is lower than the height of the helical tooth 731 within the vertical slide groove 81. The lower end of the locking sleeve 73 abuts against the upper end of the sliding column 71. When the sliding sleeve 72 is pressed down, the helical tooth 731 slides down the vertical slide groove 81 to the "Z"-shaped track 82, moves along the "Z"-shaped track 82, and is guided into the limiting point 83. At this time, the water sealing component 6 slides down with the sliding column 71 to open the water inlet. When the sliding sleeve 72 is pressed down again, the helical tooth 731 slides out of the locking point and enters the next vertical slide groove 81. Under the action of the spring 74, it returns to the initial height. The water sealing component 6 slides up to close the water inlet, forming a press-lock structure similar to a ballpoint pen. It can be operated with one hand and the status is clear, avoiding accidental opening and leakage.

[0033] In the above-mentioned detachable connection method of the limiting block 75, such as threaded connection or snap-fit, is preferably achieved by snap-fit. The sliding column 71 is provided with a limiting groove 712 and a vertical guide groove 711 provided from the upper end of the sliding column 71 along the length direction of the sliding column 71. The lower end of the limiting groove 712 communicates with the lower end of the vertical guide groove 711. The limiting block 75 has a mounting hole for the upper end of the sliding column 71 to be inserted. The limiting block 75 is provided with a groove extending into the mounting hole and communicating with the vertical guide groove 711 and the limiting groove 712. The limiting protrusion 751, which mates with the positioning groove 712, connects the limiting block 75 to the sliding post 71. The mounting hole aligns with the sliding post 71, and the limiting protrusion 751 aligns with the vertical guide groove 711. The limiting block 75 is then fitted onto the sliding post 71. The limiting protrusion 751 slides vertically to the bottom of the vertical guide groove 711, and the limiting cover is rotated to slide the limiting protrusion 751 into the limiting groove 712. Under the elastic force of the spring 74, the limiting protrusion 751 abuts against the limiting groove 712. The vertical guide groove 711 and the limiting groove 712 described above have a guiding function, allowing the limiting block 75 to slide along a preset trajectory during installation and disassembly. To improve the stability of the limiting block 75, there are two sets of vertical guide grooves 711 and limiting grooves 712, which are evenly distributed along the outer wall of the sliding column 71. One vertical guide groove 711 and one limiting groove 712 form a group. There are two sets of limiting protrusions 751, which correspond one-to-one with each group of vertical guide grooves 711 and limiting grooves 712.

[0034] The water-sealing assembly 6 includes an annular sealing block 61, a water-sealing silicone 62 covering the outer edge of the sealing block 61, and a second spring 63. The outer wall of the sealing block 61 has a silicone ring 23 that abuts against the inner wall of the kettle body 1. A connecting sleeve 65 extends into the water inlet from the middle of the sealing block 61. An annular platform 66 is located inside the connecting sleeve 65. The annular platform 66 has a through hole 67 communicating with the inside of the kettle body 1 in its middle. The upper end of the second spring 63 abuts against the lower surface of the first annular platform 221, and the lower end abuts against the upper surface of the second annular platform 66. The lower side wall of the sliding column 71 has a limiting plate 714 extending outwards. The upper surface of the limiting plate 714 abuts against the lower surface of the edge of the through hole 67. The upper end of the sliding column 71 slides sequentially through the through hole 67 in the middle of the second annular platform 66, the second spring 63, the first annular platform 221, and the first spring 74, and connects to the limiting block 75. The elastic force of the first spring 74 is greater than that of the second spring 63. Under normal conditions, because the elastic force of spring 1 74 is greater than that of spring 2 63, spring 1 74 pulls the sealing block 61 upward through the limiting plate 714 of the sliding column 71, and the sealing silicone 62 presses against the inlet end face to form the main seal. Spring 2 63 is in a compressed state to assist the sealing block 61 in returning to its original position. When the drive assembly 7 is pressed down, the sliding column 71 moves down to overcome the elastic force of spring 1 74, and the limiting plate 714 moves down with the sliding column 71 away from the through hole 67. Spring 2 63 instantly resets and releases its elastic force to push the sealing block 61 downward, causing the sealing silicone 62 to separate from the inlet end face, and the water outlet channel 18 opens. The liquid in the kettle enters the water outlet channel 18 through the inlet. After releasing the pressure on the drive assembly 7, spring 1 74 quickly resets, and the sliding column 71 drives the limiting plate 714 to move upward, pulling the sealing block 61 back to the inlet end face, and the water outlet channel 18 instantly closes. In the above, the through hole 67 of the annular platform 66 becomes an air outlet when the sliding column 71 moves down, so that the air pressure inside and outside the kettle is balanced and the water is poured smoothly; after the sliding column 71 moves up, the limiting plate 714 seals the through hole 67 again, restores the seal, and prevents heat loss.

[0035] A through channel is opened along the axial direction at the center of the drive assembly 7. Specifically, the sliding column 71 is a hollow tube. The hollow tube, the middle part of the sliding sleeve 72, and the middle part of the locking sleeve 73 form the channel. A temperature sensor 9 is installed in the channel. The upper end of the temperature sensor 9 is integrally formed with the temperature display 10 and exposed on the top surface of the drive part 321. The temperature display 10 is also used as a button. The lower end of the temperature sensor 9 extends into the kettle body 1 to sense the water temperature in real time. The temperature display 10 displays the temperature directly in digital form. The user can press the same button to observe the water temperature and open or close the water flow at the same time. There is no need for additional openings or external thermometers, which ensures the overall sealing of the kettle lid and a simple appearance, and avoids the problem of traditional external temperature displays failing due to steam penetration.

[0036] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] The above provides a detailed description of the rotary-opening temperature display thermos provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A rotary uncovering temperature display heat preservation kettle, comprising a kettle body and a cover, characterized in that: The lid body has a circular mounting cavity coaxial with the lid body axis. A bushing is located in the center of the mounting cavity, and a rotating component is fitted around the bushing. When subjected to rotational force, the rotating component rotates around the bushing circumferentially, and automatically resets after the force is released. The upper end of the rotating component is located outside the lid body, forming a driving part for finger rotation. At least two slide rails are provided in the mounting cavity, evenly distributed along the bushing circumferentially and radially penetrating the outer wall of the lid body. A locking component is slidably installed in each slide rail. An elastic element is provided between the locking component and the bushing of the lid body. The elastic element always applies a radially outward pushing force to the locking component, keeping its end tending to extend. The lower end of the rotating component is slidably connected to each locking component. When a rotational force is applied to the driving part, the rotating component rotates around the bushing circumferentially and simultaneously pulls all the locking components radially back into the mounting cavity along the slide rails. After the force is released, the rotating component automatically resets, and each locking component, under the action of the elastic element, simultaneously extends radially outward again and locks into the preset locking position on the upper inner wall of the pot body.

2. The rotary-type temperature-indicating thermos flask according to claim 1, characterized in that: The rotating component includes a rotating disk, a rotating sleeve, and two elastic elements equal in number to the locking elements. The top of the cover has a shaft hole concentric with the bushing. The rotating disk is fitted around the outer periphery of the bushing. The lower end of the rotating sleeve passes through the shaft hole, fits onto the bushing, and is engaged and fixed to the rotating disk. The portion of the rotating sleeve outside the cover forms the driving part. Each elastic element is disposed between the rotating disk and a corresponding locking element. One end of the elastic element is fixed to the rotating disk, and the other end acts on the locking element to provide a restoring force to the rotating disk after it rotates.

3. The rotary uncovering and visible-keeping vacuum pot according to claim 2, characterized in that: The locking element is provided with an arc-shaped sliding hole, the distance from the center of the bushing gradually increases from one end to the other. The bottom of the rotating disk is provided with a guide post that extends into the arc-shaped sliding hole. When a rotational force is applied to the drive unit, the rotating disk rotates around the bushing, the guide post slides along the arc-shaped hole and forces the locking element to overcome the elastic force of the first elastic element and retract radially into the mounting cavity through the inclined surface of the hole wall. After the force is released, the second elastic element drives the rotating disk to rotate in the opposite direction, the guide post slides along the arc-shaped hole back to the initial position, and the locking element extends radially outward again with the assistance of the first elastic element and locks into the locking position.

4. The rotary uncovering and visible-keeping vacuum pot according to claim 1, characterized in that: The slide rail and the locking fastener are both in pairs and are arranged symmetrically at 180° with the axis of the bushing as the center.

5. The rotary-type thermos with temperature display as described in claim 1, characterized in that: The elastic element is a return spring, and the lower end of the locking element is provided with a limiting post. One end of the return spring is sleeved on the limiting post, and the other end abuts against the side wall of the bushing.

6. The rotary-type temperature-indicating thermos flask according to claim 1, characterized in that: The spout of the kettle body is provided with an annular sleeve. The upper end of the annular sleeve is welded to the top of the spout. The middle section of the annular sleeve protrudes into the kettle body to form an annular rib. The lower end face of the annular rib forms the locking position with the inner wall of the annular sleeve. A water-blocking silicone is provided between the annular sleeve and the inner wall of the spout. The water outlet of the kettle body is located below the water-blocking silicone.

7. The rotary-type temperature-indicating thermos flask according to claim 2, characterized in that: The cover is provided with a water outlet channel located below the mounting cavity and communicating with the inside of the kettle. The water outlet of the water outlet channel is connected to the spout. A water sealing component is provided at the water inlet of the water outlet channel. The water sealing component is provided with a driving component that drives the water sealing component to open or close the water inlet. The upper end of the driving component passes through the bushing and extends into the rotating sleeve. The driving component can move along the axial direction of the bushing and the rotating sleeve.

8. The rotary uncovering and visible-keeping vacuum pot according to claim 7, characterized in that: The rotating sleeve is equipped with a limiting sleeve, the lower end of which extends into the bushing and is threadedly connected to it. The bottom of the bushing has an annular platform. The driving assembly includes a sliding column, a sliding sleeve, a locking sleeve, and a spring. The bottom of the sliding column is slidably connected to the sealing assembly and can drive the sealing assembly to move axially. The upper end of the sliding column is detachably equipped with a limiting block. The spring is fitted onto the sliding column and rests between the annular platform and the limiting block. Vertically spaced grooves are evenly distributed on the inner wall of the limiting sleeve. The sliding sleeve and locking sleeve are respectively provided with slider one and slider two that can slide along the vertical sliding groove. The lower end face of the sliding sleeve is provided with a V-shaped toothed ring. The outer wall of the locking sleeve is provided with helical teeth that cooperate with the inclined surface of the V-shaped teeth. A "Z"-shaped track that cooperates with the inclined surface of the helical teeth is provided between the vertical sliding grooves. The "Z"-shaped track has a limiting point. The height of the limiting point is lower than the height of the helical teeth in the vertical sliding groove. The lower end of the locking sleeve abuts against the upper end of the sliding column.

9. The rotary-type thermos with temperature display as described in claim 8, characterized in that: The water-sealing assembly includes an annular sealing block, a water-sealing silicone sealant covering the outer edge of the sealing block, and a second spring. A connecting sleeve is provided in the middle of the sealing block, extending into the water inlet. An annular platform is provided inside the connecting sleeve. The upper end of the second spring abuts against the lower surface of the annular platform, and the lower end abuts against the upper surface of the annular platform. The lower end sidewall of the sliding column has a limiting plate extending outward. The upper surface of the limiting plate abuts against the lower surface of the edge of the through hole. The upper end of the sliding column slides sequentially through the through hole in the middle of the annular platform, the second spring, the annular platform, and the first spring, and connects to the limiting block. The elastic force of the first spring is greater than that of the second spring. Under normal conditions, the first spring pulls the sealing block upward through the limiting plate of the sliding column, so that the water-sealing silicone seals the end face of the water inlet to achieve a seal. At this time, the second spring is in a compressed state. When the driving assembly is pressed down, the sliding column moves down and drives the limiting plate away from the through hole. The second spring releases its elastic force and pushes the annular sealing block downward, so that the water-sealing silicone seals the end face of the water inlet, and the water outlet channel is opened.

10. The rotary uncovering and visible-keeping vacuum pot according to claim 7, characterized in that: The drive assembly has a through channel along its center along the axial direction. A temperature sensor probe with its lower end extending into the kettle body is installed in the channel. A temperature display integrated with the temperature sensor probe is installed at the upper end of the temperature sensor probe. The temperature display is exposed on the top surface of the drive assembly and also serves as a button for operating the drive assembly.

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