A sealing and exhausting structure of a water injection and heat preservation bowl

Abstract

The utility model discloses a kind of sealing exhaust structure of water injection heat preservation bowl, including outer bowl, inner bowl, heat preservation inner bag, sealing ring, thread locking sleeve and bowl cover;The heat preservation inner bag is provided with first annular flange along circumference, sealing ring is provided with second annular flange along circumference, and the inner top wall of thread locking sleeve is equipped with limit step, and limit step is used to when with thread locking sleeve and outer bowl is screwed connection first annular flange and second annular flange are pressed in the upper end surface of inner bowl;Water injection cavity is formed between heat preservation inner bag and inner bowl, sealing ring bottom is equipped with exhaust passage, second annular flange is equipped with exhaust hole, and exhaust hole is connected with the exhaust passage.The utility model thread locking sleeve and outer bowl are connected by thread, when thread locking sleeve is loosened, the exhaust hole on sealing ring can be communicated with water injection cavity through exhaust passage, to balance internal air pressure difference, prevent heat preservation inner bag from being difficult to take out due to negative pressure adsorption, so as to give consideration to good heat preservation performance and disassembly convenience.

Description

Technical Field

[0001] This utility model relates to the field of water-filled insulated bowls, and more particularly to a sealing and venting structure for water-filled insulated bowls. Background Technology

[0002] Water-filled insulated bowls are tableware that uses hot or cold water to keep food warm or cool by filling the space between the insulated inner liner and the inner bowl. They are widely used in infant feeding, medical care, and daily family meals. Water-filled insulated bowls typically use a hollow structure between the two bowls as a water-filling cavity to enhance the heat exchange between food and liquid.

[0003] However, during use, when hot water is injected into the water filling chamber of the insulated bowl, the air pressure inside the chamber will differ from the air pressure in the outside environment. Due to the imbalance of internal and external air pressure, a strong negative pressure adsorption force is formed between the inner liner and the bowl body. This makes it difficult for users to remove or disassemble the inner liner without applying a large amount of external force. Not only is it inconvenient to operate, but it can also easily cause deformation or damage to the structural components.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a sealing and venting structure for a water-filled insulated bowl that is easy to use and allows for easy disassembly of the insulated inner liner.

[0006] To achieve this objective, the present invention adopts the following technical solution: a sealing and venting structure for a water-filled insulated bowl, comprising an outer bowl, an inner bowl, an insulated inner liner, a sealing ring, a threaded locking sleeve, and a bowl lid;

[0007] The inner bowl is disposed inside the outer bowl, and the top of the inner bowl is seamlessly connected to the top of the outer bowl, so that a sealed cavity is formed between the inner bowl and the outer bowl;

[0008] The heat-insulating inner liner is provided with a first annular baffle along the circumference, and an annular positioning groove is formed between the first annular baffle and the outer wall of the heat-insulating inner liner. The top of the sealing ring is provided with an annular protrusion that is embedded and connected to the annular positioning groove. The sealing ring is provided with a second annular baffle along the circumference, and the second annular baffle is attached to the top edge of the inner bowl.

[0009] The outer bowl has an external thread structure at its top, and the inner top wall of the threaded locking sleeve has a limiting step. The limiting step is used to press the first annular flange and the second annular flange against the upper end face of the inner bowl when the threaded locking sleeve is threadedly connected to the external thread structure.

[0010] A water injection chamber is formed between the heat-insulating inner liner and the inner bowl. An exhaust channel is provided at the bottom of the sealing ring, and an exhaust hole is provided on the second annular baffle. The exhaust hole is connected to the exhaust channel and is used to communicate with the water injection chamber when the threaded locking sleeve is in the loosened state.

[0011] The bowl lid and the threaded locking sleeve are connected by a rotating fastening mechanism, and the bowl lid is used to seal the heat-insulating inner liner.

[0012] Using the above technical solution, in the sealing and venting structure of the water-filled heat-insulating bowl, the width of the first annular baffle is smaller than the width of the second annular baffle, and the vent is located on the second annular baffle outside the first annular baffle.

[0013] Using the above technical solution, in the sealing and venting structure of the water-filled heat-insulating bowl, the length of the venting channel is less than the width of the sealing ring.

[0014] Using the above technical solution, in the sealing and venting structure of the water-filled heat-insulating bowl, the top of the threaded locking sleeve is provided with several limiting slots along the circumference, and the bottom of the bowl cover is provided with several limiting blocks along the circumference. The limiting blocks are used to lock and abut against the limiting slots when the bowl cover and the threaded locking sleeve are screwed together.

[0015] Using the above technical solution, in the sealing and venting structure of the water-filled heat-insulating bowl, the inner wall of the limiting slot is provided with a positioning protrusion, and the limiting block is provided with a positioning groove that cooperates with and connects to the positioning protrusion.

[0016] Using the above technical solution, in the sealing and venting structure of the water-filled insulated bowl, a sealing gasket is provided at the bottom of the bowl lid, and the sealing gasket is used to seal against the upper end surface of the insulated inner liner when the bowl lid is in a closed state.

[0017] The sealing and venting structure of the water-filled heat-insulating bowl, as described above, also includes a one-way air extraction valve. The one-way air extraction valve is located at the bottom of the outer bowl and is used to evacuate the sealed chamber to create a vacuum environment.

[0018] In the above technical solution, the sealing and venting structure of the water-filled heat-insulating bowl has a handle on the outer wall of the threaded locking sleeve.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This invention creates a sealed chamber between the inner and outer bowls, which acts as a thermal insulation layer, effectively improving the heat preservation performance of the water-filled insulated bowl. The threaded locking sleeve is connected to the outer bowl via a threaded locking connection. During tightening, the limiting step on the inner top wall of the threaded locking sleeve simultaneously presses down on the first and second annular retaining edges, ensuring the sealing ring and the inner insulated liner are tightly against the upper surface of the inner bowl, thus improving the sealing of the water-filled chamber. An exhaust channel is located at the bottom of the sealing ring, and an exhaust hole is located on the second annular retaining edge. When the threaded locking sleeve is loosened, the exhaust hole connects to the water-filled chamber through the exhaust channel, allowing the air pressure inside the water-filled chamber to match the external environment. This solves the problem of the inner insulated liner being difficult to remove due to pressure difference, enabling the water-filled insulated bowl to achieve efficient heat preservation while also providing excellent ease of assembly and disassembly. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the bowl lid installation structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the bottom structure of the bowl lid of this utility model;

[0026] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0027] Figure 5 This is a schematic diagram of the explosion structure of the heat-insulating inner liner of this utility model;

[0028] Figure 6 This is a schematic diagram of the installation structure between the sealing ring and the heat-insulating inner liner of this utility model. Detailed Implementation

[0029] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 6As shown, this utility model embodiment provides a sealed venting structure for a water-filled insulated bowl, including an outer bowl 1, an inner bowl 2, an insulated inner liner 3, a sealing ring 4, a threaded locking sleeve 5, and a bowl lid 6; the inner bowl 2 is disposed inside the outer bowl 1, and the top of the inner bowl 2 is seamlessly connected to the top of the outer bowl 1, so that a sealed chamber 101 is formed between the inner bowl 2 and the outer bowl 1; the sealed chamber can serve as an insulation layer to block heat exchange between the inner bowl 2 and the external environment, thereby reducing the overall heat conduction efficiency and improving the heat preservation effect of the water-filled insulated bowl. The heat-insulating inner liner 3 is provided with a first annular retaining edge 31 along its circumference. An annular positioning groove 32 is formed between the first annular retaining edge 31 and the outer wall of the heat-insulating inner liner 3. The top of the sealing ring 4 is provided with an annular protrusion 41 that is embeddedly connected to the annular positioning groove 32. This arrangement can improve the assembly stability between the sealing ring 4 and the heat-insulating inner liner 3 and prevent the sealing ring 4 from radially slipping during use. The sealing ring 4 is provided with a second annular retaining edge 42 along its circumference. The second annular retaining edge 42 is attached to the top edge of the inner bowl 2. The top of the outer bowl 1 is provided with an external thread structure 11. The inner top wall of the locking sleeve 5 is provided with a limiting step 51. The limiting step 51 is used to press the first annular retaining edge 31 and the second annular retaining edge 42 against the upper end face of the inner bowl 2 when the threaded locking sleeve 5 is threadedly connected to the external thread structure 11. A water injection chamber 102 is formed between the heat-insulating inner liner 3 and the inner bowl 2. The bottom of the sealing ring 4 is provided with an exhaust channel 43. The second annular retaining edge 42 is provided with an exhaust hole 44, which is connected to the exhaust channel 43. The exhaust hole 44 is used to connect with the water injection chamber when the threaded locking sleeve 5 is in a loosened state. 102 is connected; when keeping food warm, the user can inject hot water into the water injection chamber 102. Through the heat conduction between the hot water and the wall of the inner liner 3, the food in the inner liner 3 is kept warm; the sealing ring 4 can improve the sealing effect of the water injection chamber 102 and prevent the hot water in the water injection chamber 102 from seeping out from the inside; during the heat preservation process, as the hot water gradually cools down, the gas expansion or contraction inside the water injection chamber 102 creates a pressure difference with the outside, resulting in a strong negative pressure adsorption force between the inner liner 3 and the inner bowl 2, so that the user needs to apply more force when disassembling or removing the inner liner 3. Large external forces can make operation inconvenient or even impossible to remove smoothly. By setting an exhaust channel 43 at the bottom of the sealing ring 4, and providing an exhaust hole 44 on the second annular baffle 42 that is connected to the exhaust channel 43, when it is necessary to disassemble the heat-insulating inner liner 3, the threaded locking sleeve 5 can be loosened. At this time, the exhaust hole 44 can be connected to the water filling chamber 102. After the air pressure is balanced, the negative pressure adsorption phenomenon can be eliminated, making it easy for users to remove the heat-insulating inner liner 3. This setting not only ensures the heat-insulating effect of the water-filled heat-insulating bowl, but also solves the problem of disassembly difficulties caused by air pressure differences in traditional structures, effectively improving the operational convenience of the product.

[0033] The bowl lid 6 is connected to the threaded locking sleeve 5 by rotation and fastening. The bowl lid 6 is used to close the heat-insulating inner liner 3, thereby sealing the opening at the top of the heat-insulating inner liner 3 to prevent the food from losing heat or being contaminated by external impurities.

[0034] like Figure 6 As shown, further, the width of the first annular retaining edge 31 is smaller than the width of the second annular retaining edge 42, and the vent 44 is located on the second annular retaining edge 42 outside the first annular retaining edge 31. Thus, when the threaded locking sleeve 5 is loosened, the vent 44 communicates with the water injection chamber 102 through the lower venting channel 43, allowing the water injection chamber to communicate with the external air pressure, thereby avoiding the formation of negative pressure adsorption between the heat-insulating inner liner 3 and the inner bowl 2, solving the problem that the heat-insulating inner liner 3 is difficult to pull out in the traditional structure; while after the threaded locking sleeve 5 is tightened, the limiting step 51 presses against the first annular retaining edge 31 and the second annular retaining edge 42, and the vent 44 is blocked, thereby improving the sealing effect of the water-injecting heat-insulating bowl.

[0035] like Figure 6 As shown, furthermore, the length of the exhaust channel 43 is less than the ring width of the sealing ring 4. If the exhaust channel 43 is too long and runs through the entire sealing ring 4, it will damage the sealing effect of the sealing ring 4, forming a through gap, thereby affecting its sealing effect on the edge of the inner bowl 2. Therefore, the length of the exhaust channel 43 is limited to within the ring width of the sealing ring 4, and short channels are only opened in local areas, so that it can both allow gas to pass through and form a seal when locked, thus taking into account both the overall exhaust performance and sealing reliability.

[0036] like Figure 2 and Figure 3 As shown, further, the top of the threaded locking sleeve 5 is provided with several limiting slots 52 along the circumferential direction, and the bottom of the bowl cover 6 is provided with several limiting blocks 61 along the circumferential direction. The limiting blocks 61 are used to lock and abut against the limiting slots 52 when the bowl cover 6 is screwed into the threaded locking sleeve 5. This setting can improve the ease of disassembly and assembly of the bowl cover 6. Simply rotate the bowl cover 6 to the limiting position, and the limiting blocks 61 can lock or unlock with the limiting slots 52. The closing or opening can be completed without complicated operations.

[0037] like Figure 2 and Figure 3 As shown, the inner wall of the limiting slot 52 is provided with a positioning protrusion 521, and the limiting block 61 is provided with a positioning groove 611 that cooperates with the positioning protrusion 521. This arrangement can provide feedback for the screwing operation of the bowl lid 6, allowing the user to intuitively judge whether the bowl lid 6 is screwed in place during operation, thus preventing the problem of poor sealing caused by incomplete screwing. On the other hand, it can also improve the stability of the assembly structure of the bowl lid 6 and prevent it from loosening under the action of external vibration.

[0038] like Figure 3 and Figure 4 As shown, the bottom of the bowl lid 6 is provided with a sealing gasket 62, which is used to seal against the upper surface of the heat-insulating inner liner 3 when the bowl lid 6 is in a closed state, thereby improving the overall sealing performance and heat preservation effect.

[0039] like Figure 4 As shown, it further includes a one-way evacuation valve 7, which is located at the bottom of the outer bowl 1. The one-way evacuation valve 7 is used to evacuate the sealed chamber 101 to create a vacuum environment. Users can use an external evacuation device to evacuate the one-way evacuation valve 7. Since the one-way evacuation valve 7 allows air to only be discharged outwards and not flow backwards, after evacuation, the sealed chamber 101 maintains a vacuum negative pressure state, effectively preventing heat from being conducted between the inner bowl 2 and the outer bowl 1 through air convection, thus effectively improving the overall heat insulation effect.

[0040] like Figure 1 As shown, the threaded locking sleeve 5 is further provided with a handle 53 on its outer wall. This design not only makes it easier for the user to hold the sleeve, but also makes it easier for the user to apply rotational force, thereby improving ease of use.

[0041] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing and venting structure for a water-filled insulated bowl, characterized in that, Includes an outer bowl, an inner bowl, an insulated inner liner, a sealing ring, a threaded locking sleeve, and a bowl lid; The inner bowl is disposed inside the outer bowl, and the top of the inner bowl is seamlessly connected to the top of the outer bowl, so that a sealed cavity is formed between the inner bowl and the outer bowl; The heat-insulating inner liner is provided with a first annular baffle along the circumference, and an annular positioning groove is formed between the first annular baffle and the outer wall of the heat-insulating inner liner. The top of the sealing ring is provided with an annular protrusion that is embedded and connected to the annular positioning groove. The sealing ring is provided with a second annular baffle along the circumference, and the second annular baffle is attached to the top edge of the inner bowl. The outer bowl has an external thread structure at its top, and the inner top wall of the threaded locking sleeve has a limiting step. The limiting step is used to press the first annular flange and the second annular flange against the upper end face of the inner bowl when the threaded locking sleeve is threadedly connected to the external thread structure. A water injection chamber is formed between the heat-insulating inner liner and the inner bowl. An exhaust channel is provided at the bottom of the sealing ring, and an exhaust hole is provided on the second annular baffle. The exhaust hole is connected to the exhaust channel and is used to communicate with the water injection chamber when the threaded locking sleeve is in the loosened state. The bowl lid and the threaded locking sleeve are connected by a rotating fastening mechanism, and the bowl lid is used to seal the heat-insulating inner liner.

2. The sealing and venting structure of the water-filled insulated bowl according to claim 1, characterized in that, The width of the first annular stop is smaller than the width of the second annular stop, and the vent is located on the second annular stop outside the first annular stop.

3. The sealing and venting structure of the water-filled insulated bowl according to claim 1, characterized in that, The length of the exhaust channel is less than the width of the sealing ring.

4. The sealing and venting structure of the water-filled insulated bowl according to claim 1, characterized in that, The top of the threaded locking sleeve is provided with several limiting slots along the circumference, and the bottom of the bowl cover is provided with several limiting blocks along the circumference. The limiting blocks are used to lock and abut against the limiting slots when the bowl cover and the threaded locking sleeve are screwed together.

5. The sealing and venting structure of the water-filled insulated bowl according to claim 4, characterized in that, The inner wall of the limiting slot is provided with a positioning protrusion, and the limiting block is provided with a positioning groove that cooperates with and connects to the positioning protrusion.

6. The sealing and venting structure of the water-filled insulated bowl according to claim 1, characterized in that, The bottom of the bowl lid is provided with a sealing gasket, which is used to seal against the upper surface of the heat-insulating inner liner when the bowl lid is in a closed state.

7. The sealing and venting structure of the water-filled insulated bowl according to claim 1, characterized in that, It also includes a one-way evacuation valve, which is located at the bottom of the outer bowl. The one-way evacuation valve is used to evacuate the sealed chamber to create a vacuum environment in the sealed chamber.

8. The sealing and venting structure of the water-filled insulated bowl according to claim 1, characterized in that, The threaded locking sleeve has a handle on its outer wall.

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