Highly sealed thermal pot

Abstract

The application discloses a high-sealing heat preservation tank, which comprises a tank body and a heat preservation cover, wherein the heat preservation cover comprises an upper cover body, a sealing ring, an adjusting frame and a lower cover body; a trigger is arranged on the upper cover body; trigger connecting shafts are arranged on both sides of the trigger; two connecting shaft holes are formed in the upper cover body; the trigger connecting shafts are rotationally connected with the connecting shaft holes; two adjusting shafts are fixedly arranged on the upper end surface of the adjusting frame and rotationally connected with the trigger connecting shafts; the trigger connecting shafts are used for driving the adjusting shafts to move in the vertical direction; and the sealing ring is located between the upper cover body and the adjusting frame. The application has a reasonable structure; the trigger drives the adjusting frame to move upwards, so that the adjusting frame drives the lower end of the sealing ring to move upwards, the sealing ring is compressed, one side of the sealing ring protrudes outward, the sealing ring is clamped on the inner wall of the tank body, and the heat preservation cover cannot be separated from the tank body.

Description

Technical Field

[0001] This invention relates to the field of insulated containers, and particularly to a high-sealing insulated tank. Background Technology

[0002] As people place greater emphasis on health, more and more people are bringing their own lunches to work or school, especially parents who are concerned about their children's health and will cook for them to take to school. To ensure that the food inside the lunchbox remains at a certain temperature when used, insulated lunchboxes, or thermal containers, are often used.

[0003] Existing insulated containers often use threads to secure the insulated lid to the container body. This threaded connection requires threads on both the lid and the container body, making it difficult to clean impurities from the threaded gaps. Furthermore, as the internal temperature of the insulated container decreases, the pressure difference between the inside and outside makes the lid difficult to open. Therefore, designing a new insulated container structure is a problem that is currently under research. To address these issues, a solution is proposed below. Summary of the Invention

[0004] The purpose of this invention is to provide a highly airtight insulated container that is easy to open and has a good heat preservation effect.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0006] A high-sealing heat-insulating tank includes a tank body and an insulated cover. The insulated cover includes an upper cover, a sealing ring, an adjusting frame, and a lower cover. A trigger is mounted on the upper cover, and trigger couplings are located on both sides of the trigger. Two coupling holes are formed on the upper cover, and one end of each trigger coupling is located within and rotatably connected to the coupling hole. Two adjusting shafts are fixedly mounted on the upper end face of the adjusting frame, and the upper ends of the two adjusting shafts pass through the coupling holes and are rotatably connected to the trigger couplings. The trigger coupling includes a connecting part on the same horizontal plane as the trigger and a part perpendicular to the trigger. The machine has a protruding part, and the adjusting shaft is connected to the intersection of the protruding part and the connecting part of the trigger shaft. The trigger shaft is used to drive the adjusting shaft to move in the vertical direction. The sealing ring is located between the upper cover and the adjusting frame. The upper end of the sealing ring is inserted and fixed to the lower end face of the upper cover, and the lower end of the sealing ring is snapped and fixed to the upper end face of the adjusting frame. The lower cover is fixed to the lower end face of the adjusting frame and is snapped and engaged with the inner wall of the tank. The trigger is a cam structure. The cam pulls the adjusting frame to make the sealing ring expand or slide, thereby locking the tank.

[0007] Preferably, the upper cover includes an upper cover plate and an upper protective plate. The upper protective plate is fixed to the lower end face of the upper cover plate. The lower end face of the upper cover plate is provided with an upper mounting groove. The outer edge of the upper protective plate protrudes upward and is engaged in the upper mounting groove. The lower end face of the upper protective plate is provided with an outer ring groove and an inner ring groove. The upper end of the tank body is inserted into the outer ring groove, and the upper end of the sealing ring is inserted into the inner ring groove.

[0008] Preferably, the adjusting frame includes an adjusting plate and a base plate. The base plate is snapped and fixed to the lower end face of the adjusting plate. A central shaft is provided at the center of the lower end face of the adjusting plate. The lower end face of the adjusting plate is also provided with a plurality of spoke edges and annular edges. The plurality of spoke edges are arranged around the central shaft, and one end of the spoke edge is connected to the central shaft. The other end of the spoke edge extends to the outer edge of the adjusting plate. The diameter of the annular edge is larger than the diameter of the central shaft. The annular edge connects all the spoke edges. The spoke edges and annular edges are used to increase the firmness of the adjusting frame. The outer edge of the upper end face of the adjusting plate is provided with a downwardly recessed groove. A horizontally arranged abutment ring is fixed at the lower end of the sealing ring. The abutment ring abuts against the upper end face of the groove.

[0009] Preferably, the lower end face of the lower cover is provided with a sealing ring, the outer side of the sealing ring is arc-shaped, the outermost diameter of the sealing ring is smaller than the outermost diameter of the lower cover, and a number of reinforcing ridges are fixed on the lower end face of the lower cover to increase the strength of the lower cover.

[0010] Preferably, the tank body includes an outer tank body and an inner tank body. The inner wall of the outer tank body is provided with two inwardly protruding locking ridges, which are an upper locking ridge and a lower locking ridge. The inner diameter of the lower locking ridge is smaller than the inner diameter of the upper locking ridge. The upper end of the inner tank body is provided with an outwardly folded retaining ring. The outer diameter of the retaining ring is smaller than the inner diameter of the upper locking ridge, and the outer diameter of the retaining ring is larger than the inner diameter of the lower locking ridge.

[0011] Preferably, the outer tank includes an outer shell and an inner shell, with a partition between the outer shell and the inner shell. The upper and lower locking edges are both located on the inner shell. The upper end of the outer shell has an inwardly recessed abutment, the height of which is the same as the height of the upper locking edge. The distance between the outer shell and the inner shell located above the abutment is less than the distance between the outer shell and the inner shell located below the abutment.

[0012] Preferably, the portion of the outer tank body located above the platform is a plug-in part, which is engaged with the outer annular groove, and the outermost lower end face of the upper cover body abuts against the platform.

[0013] Preferably, the upper end face of the upper cover is provided with a storage groove for placing tableware. The storage groove is provided with a storage cover, one side of which is hinged to the storage groove, and the other side of which is snapped into the storage groove.

[0014] Preferably, the upper cover is also provided with a lifting ring, which is hinged to the upper cover.

[0015] Preferably, an annular pad is embedded in the lower end face of the outer shell, the annular pad is fixedly connected to the outer shell, and the lowermost position of the annular pad is lower than the lowermost position of the outer shell.

[0016] The beneficial effects of this invention are as follows:

[0017] By replacing the traditional threaded connection with a snap-fit ​​method, the problem of the insulation cover being difficult to open due to the pressure difference between the inside and outside of the tank is reduced;

[0018] The tank body and the insulation cover are secured by the upper snap-fit ​​edge on the inner wall of the tank and the sealing ring. When the sealing ring is compressed, the middle part of the sealing ring protrudes outward, and the protruding part of the sealing ring is located below the upper snap-fit ​​edge, making it impossible to remove the insulation cover from the tank body. When the sealing ring is not compressed, the outer wall of the sealing ring will not contact the upper snap-fit ​​edge, allowing the insulation cover to be easily removed from the tank body.

[0019] The state of the sealing ring is adjusted by the adjusting bracket. When the adjusting bracket moves upward, it compresses the sealing ring; when the adjusting bracket moves back downward, the sealing ring extends. When the trigger moves the adjusting shaft, it moves the adjusting bracket. The trigger itself drives the adjusting shaft through a lever structure, allowing the trigger to adjust the state of the sealing ring with relatively little force. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0021] Figure 2 This is a cross-sectional view of an embodiment;

[0022] Figure 3 This is a cross-sectional view of the tank in the embodiment;

[0023] Figure 4 This is a cross-sectional view of the insulation cover in the embodiment;

[0024] Figure 5 This is a schematic diagram of the structure of the cover and trigger in the embodiment;

[0025] Figure 6 This is a diagram illustrating the connection structure between the adjustment frame and the trigger in an embodiment.

[0026] Figure 7 This is a schematic diagram of the sealing ring structure in an embodiment;

[0027] Figure 8 This is a schematic diagram of the structure of the cover in the embodiment.

[0028] Reference numerals: 1. Insulation cover; 2. Outer tank body; 21. Upper snap-fit ​​edge; 22. Lower snap-fit ​​edge; 23. Outer shell body; 24. Inner shell body; 25. Support platform; 26. Insertion part; 27. Annular gasket; 3. Upper cover body; 31. Upper cover plate; 32. Upper protective plate; 33. Outer annular groove; 34. Inner annular groove; 35. Storage slot; 36. Storage cover; 37. Lifting ring; 4. Sealing ring; 41. Support ring; 5. Adjusting frame; 51. Adjusting plate; 52. Base plate; 53. Adjusting shaft; 54. Central shaft; 55. Spoke edge; 56. Annular edge; 57. Support groove; 6. Lower cover body; 61. Sealing ring; 62. Reinforcing edge; 7. Trigger; 71. Trigger connecting shaft; 72. Connecting shaft hole; 8. Inner tank body; 81. Retaining ring. Detailed Implementation

[0029] The following description is merely a preferred embodiment of the present invention, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of the present invention should be protected. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component.

[0030] like Figures 1 to 8 As shown, a high-sealing insulated container includes a container body and an insulated lid 1. The container body includes an outer container body 2 and an inner container body 8. The inner wall of the outer container body 2 has two inwardly protruding locking ridges, namely an upper locking ridge 21 and a lower locking ridge 22. The inner diameter of the lower locking ridge 22 is smaller than the inner diameter of the upper locking ridge 21. The upper end of the inner container body 8 has an outwardly folded retaining ring 81. The outer diameter of the retaining ring 81 is smaller than the inner diameter of the upper locking ridge 21, and the outer diameter of the retaining ring 81 is larger than the inner diameter of the lower locking ridge 22. The inner container body 8 can pass through the upper locking ridge 21 and be locked above the lower locking ridge 22. The inner container body 8 and the outer container body 2 can be used to hold different types of food.

[0031] The outer tank 2 includes an outer shell 23 and an inner shell 24, with a partition between them. In this design, the partition is empty, consisting of an air layer, which effectively reduces the overall weight of the outer tank 2. Alternatively, items can be filled into the partition to increase the insulation performance of the outer tank 2, depending on requirements.

[0032] An annular pad 27 is embedded in the lower end face of the outer shell 23. The lowest point of the annular pad 27 is lower than the lowest point of the outer shell 23. The annular pad 27 is made of heat-insulating and elastic material, such as rubber, which can reduce the impact between the outer shell 23 and external objects such as tabletops, thereby extending the service life of the insulated container.

[0033] The heat-insulating cover 1 includes an upper cover body 3, a sealing ring 4, an adjusting bracket 5, and a lower cover body 6. The upper cover body 3 includes an upper cover plate 31 and an upper protective plate 32. The lower end face of the upper cover plate 31 is provided with an upper mounting groove. The outer edge of the upper protective plate 32 protrudes upward and is snapped into the upper mounting groove, thereby fixing the upper protective plate 32 to the upper cover plate 31. To enhance the connection between the upper protective plate 32 and the upper cover plate 31, multiple downward protruding snap-fit ​​posts are provided on the lower end face of the upper cover plate 31. The upper protective plate 32 is provided with several snap-fit ​​holes at corresponding positions. The snap-fit ​​posts are inserted into the snap-fit ​​holes respectively, and the snap-fit ​​posts are fixed by insertion into the snap-fit ​​holes.

[0034] The lower end face of the upper protective plate 32 is provided with an outer ring groove 33 and an inner ring groove 34. The outer ring groove 33 is inserted into the upper end of the tank body, and the upper end of the sealing ring 4 is inserted into the inner ring groove 34.

[0035] The adjusting frame 5 includes an adjusting plate 51 and a base plate 52, with the base plate 52 snapped and fixed to the lower end face of the adjusting plate 51. A central shaft 54 ​​is located at the center of the lower end face of the adjusting plate 51, and the lower end face of the adjusting plate 51 also has several spoke ridges 55 and annular ridges 56. The spoke ridges 55 are arranged around the central shaft 54, with one end of each spoke ridge connected to the central shaft 54 ​​and the other end extending to the outer edge of the adjusting plate 51. The annular ridges 56 connect the spoke ridges 55. The spoke ridges 55 and annular ridges 56 increase the stability of the adjusting frame 5 and provide a certain gap between the base plate 52 and the adjusting plate 51, enhancing the insulation performance of the insulation cover 1.

[0036] The outer edge of the upper surface of the adjusting plate 51 is provided with a downwardly recessed groove 57, and the lower end of the sealing ring 4 is fixed with a horizontally arranged abutment ring 41, which fits tightly with the groove 57.

[0037] The upper cover 3 is equipped with a trigger 7, and trigger 7 couplings are provided on both sides of the trigger 7. Two coupling holes 72 are opened on the upper cover 3. One end of the trigger 7 coupling is located in the coupling hole 72 and is rotatably connected to the coupling hole 72. Two adjusting shafts 53 are fixedly provided on the upper end face of the adjusting frame 5. The upper ends of the two adjusting shafts 53 pass through the coupling holes 72. A horizontally arranged cylinder is fixed on the adjusting shaft 53. The trigger 7 coupling is provided with a cylindrical groove. The cylinder on the adjusting shaft 53 is engaged in the cylindrical groove, so that the trigger 7 coupling and the adjusting shaft 53 are rotatably connected.

[0038] The trigger 7 has a cam structure. The trigger 7 pulls the adjusting bracket 5 via the cam, causing the sealing ring 4 to expand or slide, thereby locking the tank body 1. The trigger 7 coupling includes a connecting part on the same horizontal plane as the trigger 7 and a protrusion perpendicular to the trigger 7. The adjusting shaft 53 is connected to the intersection of the protrusion and the connecting part of the trigger 7 coupling. When the trigger 7 is in a vertical position perpendicular to the insulation cover 1, it is in the open state; when the trigger 7 is in a horizontal position against the surface of the insulation cover 1, it is in the closed state. When the trigger 7 rotates from the open state to the closed state, the protrusion of the trigger 7 coupling will abut against the upper end face of the upper cover 3. As the trigger 7 continues to rotate, the intersection of the protrusion and the connecting part of the trigger 7 coupling will move upwards until the trigger 7 is fully rotated to a state of contact with the insulation cover 1. At this point, the intersection of the protrusion and the connecting part of the trigger 7 coupling reaches its highest point, and the trigger 7 changes to the closed state.

[0039] When trigger 7 changes from the open state to the closed state, the trigger 7 and its connecting shaft will drive the adjusting shaft 53 to move upward. The adjusting shaft 53 will drive the adjusting bracket 5 to move upward. After the adjusting bracket 5 moves upward from its initial position, it will drive the lower end of the sealing ring 4 to move upward, while the upper end of the sealing ring 4 will not move. Therefore, the sealing ring 4 will be compressed. Since the lower end of the sealing ring 4 is inclined outward, it will protrude outward during compression, increasing the outermost diameter of the sealing ring 4. After the insulation cover 1 is placed on the tank body, the part of the sealing ring 4 exposed below the inner ring groove 34 is located below the upper locking ridge 21. When the sealing ring 4 is compressed, the outwardly protruding part of the sealing ring 4 is also located below the upper locking ridge 21 and is in close contact with the lower side of the upper locking ridge 21. The outermost diameter of the sealed ring 4 after compression is larger than the inner diameter of the upper locking ridge 21, so the sealing ring 4 cannot pass through the upper locking ridge 21, thus fixing the insulation cover 1 to the tank body.

[0040] When the insulation cover 1 needs to be removed from the tank, simply turn the trigger 7 to change it from the closed state to the open state. In the open state, the sealing ring 4 will not be compressed, meaning it will not contact the upper locking edge 21. In this design, the sealing ring 4 is made of silicone, which is durable, will not age, and has excellent sealing performance.

[0041] The upper end of the outer shell 23 is provided with an inwardly recessed platform 25. The height of the platform 25 is the same as the height of the upper locking edge 21. The portion of the outer tank 2 above the platform 25 is the insertion part 26. The lateral width of the insertion part 26 is smaller than the lateral width of the rest of the outer tank 2, so that the insertion part 26 can be inserted into the outer annular groove 33. The side wall of the outer annular groove 33, that is, the lower end face of the outermost part of the upper cover plate 31, will abut against the platform 25. Both the platform 25 and the insertion part 26 of the outer shell 23 can position the relative position between the two after the heat insulation cover 1 is placed on the tank, so that the heat insulation cover 1 can better insulate the tank.

[0042] The lower cover 6 is snapped and fixed to the lower end face of the adjusting frame 5. Several reinforcing ridges 62 are fixed to the lower end face of the lower cover 6, which can increase the strength of the lower cover 6. A sealing ring 61 is provided on the lower end face of the lower cover 6. The outer side of the sealing ring 61 is arc-shaped, and the outermost diameter of the sealing ring 61 is smaller than the outermost diameter of the lower cover 6. The sealing ring 61 can be inserted into the inner can 8, and the lower cover 6 will abut against the upper end face of the inner can 8 to prevent the food in the inner can 8 from mixing with the food in the outer can 2.

[0043] To prevent damage to the tank caused by excessive gas pressure inside the tank, an overpressure protection structure, similar to the pressure relief valve of a pressure cooker, can be further installed on the central shaft 54 ​​of the adjusting frame 5. A perforation is made on the central shaft 54, and a block is installed inside the perforation. When the gas pressure inside the tank is too high, the gas pressure inside the tank will push the block upward, allowing the gas inside the tank to pass through the perforation and flow out from the connection between the sealing ring 4 and the inner ring groove 34 to relieve pressure.

[0044] The upper end face of the upper cover 3 is provided with a storage slot 35, which can be used to place tableware or snacks. The storage slot 35 is provided with a storage cover 36. One side of the storage cover 36 is hinged to the storage slot 35, and the other side of the storage cover 36 is snapped and fixed to the storage slot 35. After the storage cover 36 is placed on the storage slot 35, it can prevent the objects in the storage slot 35 from falling out.

[0045] The upper cover 3 is also provided with a lifting ring 37, which is hinged to the upper cover 3. When the lifting ring 37 is upright, the insulated container can be lifted by lifting, making the insulated container more convenient to carry.

[0046] All components in this design are completely separable, allowing for easy cleaning of the various parts of the insulation cover during the cleaning process.

[0047] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-seal vacuum-insulated can comprising a can body and a vacuum-insulated lid (1), characterized in that, The heat insulation cover (1) includes an upper cover (3), a sealing ring (4), an adjusting bracket (5), and a lower cover (6). The upper cover (3) is provided with a trigger (7), and trigger (7) connecting shafts are provided on both sides of the trigger (7). The upper cover (3) has two connecting shaft holes (72). One end of the trigger (7) connecting shaft is located in the connecting shaft hole (72) and is rotatably connected to the connecting shaft hole (72). The upper end face of the adjusting bracket (5) is fixed with two adjusting shafts (53). The upper ends of the two adjusting shafts (53) pass through the connecting shaft hole (72) and are rotatably connected to the trigger (7) connecting shaft. The trigger (7) connecting shaft includes a connecting part on the same horizontal plane as the trigger (7) and a protrusion perpendicular to the trigger (7). The adjusting shaft (53) is connected to the intersection of the protrusion and the connecting part of the trigger (7) shaft. The trigger (7) shaft is used to drive the adjusting shaft (53) to move in the vertical direction. The sealing ring (4) is located between the upper cover (3) and the adjusting frame (5). The upper end of the sealing ring (4) is inserted and fixed to the lower end face of the upper cover (3). The lower end of the sealing ring (4) is snapped and fixed to the upper end face of the adjusting frame (5). The lower cover (6) is fixed to the lower end face of the adjusting frame (5). The lower cover (6) is snapped and engaged with the inner wall of the tank. The trigger (7) is a cam structure. The trigger (7) pulls the adjusting frame (5) through the cam to make the sealing ring (4) expand or slide, thereby locking the tank (1). The adjusting frame (5) includes an adjusting plate (51) and a base plate (52). The base plate (52) is snapped and fixed to the lower end face of the adjusting plate (51). A central shaft (54) is provided at the center of the lower end face of the adjusting plate (51). The lower end face of the adjusting plate (51) is also provided with a plurality of spoke edges (55) and annular edges (56). The plurality of spoke edges (55) are arranged around the central shaft (54), and one end of the spoke edge (55) is connected to the central shaft (54), and the other end of the spoke edge (55) extends. At the outer edge of the adjusting plate (51), the diameter of the annular ridge (56) is greater than the diameter of the central shaft (54). The annular ridge (56) connects all the spoke ridges (55). The spoke ridges (55) and the annular ridge (56) are used to increase the firmness of the adjusting frame (5). The outer edge of the upper surface of the adjusting plate (51) is provided with a downwardly recessed groove (57). The lower end of the sealing ring (4) is fixed with a horizontally arranged abutment ring (41). The abutment ring (41) abuts against the upper surface of the groove (57). The lower end face of the lower cover (6) is provided with a sealing ring (61). The outer side of the sealing ring (61) is arc-shaped. The outermost diameter of the sealing ring (61) is smaller than the outermost diameter of the lower cover (6). The lower end face of the lower cover (6) is provided with a plurality of reinforcing ridges (62). The reinforcing ridges (62) are used to increase the strength of the lower cover (6). The tank body includes an outer tank body (2) and an inner tank body (8). The inner wall of the outer tank body (2) is provided with two rings of inwardly protruding locking ridges. The two locking ridges are an upper locking ridge (21) and a lower locking ridge (22). The inner diameter of the lower locking ridge (22) is smaller than the inner diameter of the upper locking ridge (21). The upper end of the inner tank body (8) is provided with a retaining ring (81) that folds outward. The outer diameter of the retaining ring (81) is smaller than the inner diameter of the upper locking ridge (21), and the outer diameter of the retaining ring (81) is larger than the inner diameter of the lower locking ridge (22). The outer tank (2) includes an outer shell (23) and an inner shell (24). A partition is provided between the outer shell (23) and the inner shell (24). The upper snap-fit ​​edge (21) and the lower snap-fit ​​edge (22) are both provided on the inner shell (24). The upper end of the outer shell (23) is provided with an inwardly recessed abutment (25). The height of the abutment (25) is the same as the height of the upper snap-fit ​​edge (21). The distance between the outer shell (23) and the inner shell (24) located above the abutment (25) is smaller than the distance between the outer shell (23) and the inner shell (24) located below the abutment (25).

2. The high seal vacuum jar of claim 1, wherein, The upper cover (3) includes an upper cover plate (31) and an upper protective plate (32). The upper protective plate (32) is fixed to the lower end face of the upper cover plate (31). The lower end face of the upper cover plate (31) is provided with an upper mounting groove. The outer edge of the upper protective plate (32) protrudes upward and is engaged in the upper mounting groove. The lower end face of the upper protective plate (32) is provided with an outer ring groove (33) and an inner ring groove (34). The upper end of the tank body is inserted into the outer ring groove (33), and the upper end of the sealing ring (4) is inserted into the inner ring groove (34).

3. The high seal vacuum jar of claim 1, wherein, The portion of the outer tank (2) located above the platform (25) is a plug-in part (26). The plug-in part (26) of the outer tank (2) is plugged into the outer ring groove (33). The outermost lower end face of the upper cover (3) abuts against the platform (25).

4. The high containment thermos according to claim 2, wherein, The upper end face of the upper cover (3) is provided with a storage groove (35) for placing tableware. The storage groove (35) is provided with a storage cover (36). One side of the storage cover (36) is hinged to the storage groove (35), and the other side of the storage cover (36) is snapped and fixed to the storage groove (35).

5. The high containment thermos according to claim 4, wherein, The upper cover (3) is also provided with a lifting ring (37), which is hinged to the upper cover (3).

6. The high leaktight vacuum flask according to claim 1, characterized in that, The lower end face of the outer shell (23) is provided with an annular pad (27), which is fixedly connected to the outer shell (23). The lowermost position of the annular pad (27) is lower than the lowermost position of the outer shell (23).

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