Scalding-preventing double-layer structure hollow injection-molded bowl

Abstract

This utility model discloses a heat-resistant, double-layered hollow injection-molded bowl, relating to the field of injection-molded bowl technology. Its key technical features include a heat-resistant hollow injection-molded bowl body; a sealed lid threaded onto the upper circumference of the heat-resistant hollow injection-molded bowl body; and two locking mechanisms symmetrically installed on the heat-resistant hollow injection-molded bowl body, with the top of each locking mechanism fitted onto the sealed lid. The inner cavity between the inner and outer shells of the injection-molded bowl forms a natural temperature insulation layer, reducing heat transfer and preventing burns caused by excessively high outer shell temperatures. Simultaneously, cooling water can be added as needed to further enhance the heat-resistant and rapid cooling effect, making it suitable for holding hot soup, porridge, and other high-temperature foods. Furthermore, by setting two symmetrical locking mechanisms that engage with the positioning holes of the sealed lid via rounded plugs, the sealed lid can be firmly fixed, preventing the lid from loosening and food from spilling during transportation or carrying due to vibration.

Description

Technical Field

[0001] This utility model relates to the field of injection molded bowl technology, specifically to a hollow injection molded bowl with a double-layer structure that prevents burns. Background Technology

[0002] Injection-molded bowls are a common type of disposable plastic tableware, mainly used for serving takeout, fast food, soup, porridge, and other foods. They are usually made of polypropylene (PP) material and have the characteristics of high temperature resistance and microwave heating.

[0003] Existing Chinese patent CN216316892U, published on April 19, 2022, discloses a double-layered plastic bowl, including an outer bowl and an inner bowl embedded in the outer bowl. The inner wall of the outer bowl extends outward to form a supporting flange, and the upper edge of the inner bowl extends outward and bends to form a connecting flange that can press against the supporting flange. The inner bowl can be embedded in the outer bowl, allowing different foods to be held separately, thus avoiding interference between the foods. At the same time, since the inner bowl can be embedded in the outer bowl, separately stored foods can be packaged together, saving packaging resources.

[0004] However, in actual use, the above-mentioned device cannot effectively isolate temperature through the combination of the inner and outer bowls. Temperature is easily transferred to the surface of the outer bowl. The lack of a temperature-insulating cavity makes it easy for people to be burned when holding it. Moreover, it is not very convenient when it is necessary to cool down or keep the food warm.

[0005] Therefore, we propose a novel double-layer hollow injection-molded bowl with anti-scalding structure to solve the above-mentioned technical problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a double-layer hollow injection-molded bowl with anti-scalding structure. This solves the problems of the above-mentioned devices in actual use, where the combination of the inner and outer bowls cannot effectively isolate the temperature, allowing the temperature to easily transfer to the outer bowl surface. The lack of a temperature-insulating cavity makes it easy for people to be scalded when holding the bowl, and it is also inconvenient when rapid cooling or heat preservation is required for consumption.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a double-layered hollow injection-molded bowl with anti-scalding structure, comprising:

[0010] Anti-scalding hollow injection molded bowl body;

[0011] A sealed bowl lid is threadedly connected to the upper circumference of a heat-resistant hollow injection-molded bowl body;

[0012] Two locking mechanisms are symmetrically installed on the heat-resistant hollow injection molded bowl body, and the top of the locking mechanism is sleeved on the closed bowl lid.

[0013] Preferably, the anti-scalding hollow injection molded bowl body includes an inner injection molded bowl shell, an injection molded bowl cavity is formed in the middle of the inner injection molded bowl shell, an outer injection molded bowl shell is integrally connected to the periphery of the inner injection molded bowl shell, an inner cavity is formed between the inner injection molded bowl shell and the outer injection molded bowl shell, and a liquid injection cavity communicating with the inner cavity is formed on the upper left side of the outer injection molded bowl shell.

[0014] Preferably, a plastic plug is fitted onto the inner side of the injection cavity, which is located on the outer shell of the injection bowl.

[0015] Preferably, the closed bowl lid includes a bowl lid shell, a vertical groove ring is fixed to the periphery of the bowl lid shell, an assembly screw cavity is opened on the inner side of the lower end of the bowl lid shell, and two symmetrical positioning sleeve holes are opened on the outer side of the assembly screw cavity on the bowl lid shell.

[0016] Preferably, the locking mechanism includes a positioning trapezoidal plate and a rotating assembly. The positioning trapezoidal plate is integrally fixed to the outer shell of the injection-molded bowl, and the rotating assembly is threadedly connected to the inner side of the positioning trapezoidal plate.

[0017] Preferably, the rotating assembly includes a rotating nut, an adjusting screw is integrally fixed to the middle of the upper end of the rotating nut, a rounded plug is integrally fixed to the upper end of the adjusting screw, and the adjusting screw is threadedly connected to the positioning trapezoidal plate.

[0018] Preferably, the rounded plug is fitted into the positioning sleeve hole of the bowl lid shell by means of an adjusting screw.

[0019] Preferably, the outer shell of the bowl lid is threadedly connected to the upper circumference of the inner shell of the injection-molded bowl via an assembly screw cavity.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, this utility model provides a double-layer hollow injection molded bowl with anti-scalding structure, which has the following beneficial effects:

[0022] 1. The inner cavity between the inner shell and the outer shell of this injection-molded bowl forms a natural temperature insulation layer, reducing heat transfer and preventing burns caused by excessively high outer shell temperature. At the same time, cooling water can be filled as needed to further enhance the anti-scalding and rapid cooling effect, making it suitable for holding hot soup, hot porridge and other high-temperature foods.

[0023] 2. This utility model uses two symmetrical locking mechanisms that engage with the positioning holes of the closed bowl lid via rounded plugs to firmly secure the lid, preventing the lid from loosening and food from spilling during transportation or carrying due to vibration. The vertical groove ring design of the closed bowl lid enhances grip friction, making opening and closing easier. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the bottom cross-sectional structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the closed bowl lid structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the locking mechanism structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the rotating component structure of this utility model.

[0029] In the picture:

[0030] 1. Bowl lid outer shell; 11. Vertical groove ring; 12. Assembly screw cavity; 13. Positioning sleeve hole; 2. Injection molded bowl outer shell; 21. Injection molded bowl inner shell; 22. Inner cavity; 3. Rotating nut; 31. Rounded plug; 32. Adjusting screw; 4. Positioning trapezoidal plate; 5. Plastic plug; 6. Injection molded bowl cavity. Detailed Implementation

[0031] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0032] Example 1

[0033] This embodiment provides a technical solution: a double-layered hollow injection-molded bowl with anti-scalding structure, such as... Figures 1-5 As shown, it includes a heat-resistant hollow injection molded bowl body, a closed bowl lid, and two locking mechanisms.

[0034] The anti-scalding hollow injection molded bowl can be filled with cooling water for heat insulation and cooling, or filled with hot water to keep food warm. The anti-scalding hollow injection molded bowl includes an inner shell 21, with an injection molded bowl cavity 6 in the middle of the inner shell 21 for easy food storage. The inner shell 21 is integrally connected to the outer shell 2, which is easy to process and is not easy to separate and damage. An inner cavity 22 is provided between the inner shell 21 and the outer shell 2, which can be filled with liquids of different temperatures as needed to achieve the purpose of preventing scalding, heat insulation or heat preservation. The upper left side of the outer shell 2 has a liquid injection cavity that communicates with the inner cavity 22, which allows personnel to fill liquids of different temperatures through an injection molding machine or water pipe.

[0035] A plastic plug 5 is fitted onto the inner side of the injection cavity on the outer shell 2 of the injection bowl. The plastic plug 5 can effectively seal the injection cavity and prevent liquid from overflowing.

[0036] Example 2

[0037] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, to further better realize this utility model, the following configuration is specifically adopted: the closed bowl lid is threadedly connected to the upper peripheral side of the anti-scalding hollow injection molded bowl body. The threaded connection facilitates installation and disassembly. The closed bowl lid includes a bowl lid shell 1. When closed, the bowl lid shell 1 can effectively isolate the entry of external impurities and effectively prevent food from falling. A vertical groove ring 11 is fixedly connected to the peripheral side of the bowl lid shell 1. The vertical groove area of ​​the vertical groove ring 11 can increase the friction force, which makes it easier for people to hold and rotate to open and close. An assembly screw cavity 12 is opened on the lower inner side of the bowl lid shell 1 to facilitate threaded rotation connection. Two symmetrical positioning sleeve holes 13 are opened on the outer side of the assembly screw cavity 12 on the bowl lid shell 1 to facilitate sleeve positioning.

[0038] The outer shell of the bowl lid 1 is threadedly connected to the upper circumference of the inner shell of the injection-molded bowl 21 via the assembly screw cavity 12. The threaded rotation connection facilitates rotation and disassembly by personnel.

[0039] Two locking mechanisms are symmetrically installed on the heat-resistant hollow injection molded bowl body. They can be positioned on both sides. The top of the locking mechanism is fitted onto the closed bowl lid. The locking mechanism fits onto the closed bowl lid, thereby effectively fixing the closed bowl lid and preventing the closed bowl lid from rotating open.

[0040] The locking mechanism includes a positioning trapezoidal plate 4 and a rotating component. The positioning trapezoidal plate 4 is integrally fixed to the injection molded bowl shell 2. The integral connection is not easy to fall off. The rotating component is threadedly connected to the inner side of the positioning trapezoidal plate 4. The rotating component can rotate and rise in the positioning trapezoidal plate 4.

[0041] The rotating assembly includes a rotating nut 3 for easy gripping and rotation. An adjusting screw 32 is integrally fixed to the upper middle of the rotating nut 3. When the rotating nut 3 rotates, it can drive the adjusting screw 32 to rotate. When the adjusting screw 32 rotates in the forward direction, it can move upward. A rounded plug 31 is integrally fixed to the upper end of the adjusting screw 32. The adjusting screw 32 can drive the rounded plug 31 to move upward. The adjusting screw 32 is threadedly connected to the positioning trapezoidal plate 4. It can be raised and lowered by rotating the thread in both directions.

[0042] The rounded plug 31 is fitted into the positioning sleeve hole 13 of the bowl lid shell 1 through the adjusting screw 32, thereby preventing rotation.

[0043] Working principle: When using, if hot food needs to be prevented from being scalded or cooled quickly, pull out the plastic stopper 5 and inject an appropriate amount of cooling water into the inner chamber 22 through the injection chamber. After injection, put the plastic stopper 5 back in to seal. If heat preservation is required, hot water can be injected.

[0044] After placing the food into the injection molded bowl cavity 6, hold the vertical groove ring 11 of the outer shell of the bowl lid 1, and connect the sealed bowl lid to the upper end of the inner shell 21 of the injection molded bowl through the assembly screw cavity 12, and tighten to achieve a preliminary seal.

[0045] Then, grasp the two rotating nuts 3 and rotate them clockwise, causing the adjusting screw 32 to move upward along the positioning trapezoidal plate 4, so that the rounded plug 31 is inserted into the positioning sleeve hole 13 of the bowl cover shell 1, thus completing the locking and fixing of the bowl cover and preventing it from loosening during transportation.

[0046] After use, rotate the nut 3 in the opposite direction to disengage the rounded plug 31 from the positioning sleeve hole 13, and then rotate to open the closed bowl cover. If you need to replace the liquid in the inner chamber 22, pull out the plastic plug 5 to drain the old liquid and then inject the new liquid.

[0047] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A double-layered hollow injection-molded bowl with anti-scalding structure, characterized in that, include: Anti-scalding hollow injection molded bowl body; A sealed bowl lid is threadedly connected to the upper circumference of a heat-resistant hollow injection-molded bowl body; Two locking mechanisms are symmetrically installed on the heat-resistant hollow injection molded bowl body, and the top of the locking mechanism is sleeved on the closed bowl lid.

2. The anti-scalding double-layer hollow injection molded bowl according to claim 1, characterized in that: The anti-scalding hollow injection molded bowl body includes an injection molded bowl inner shell (21), an injection molded bowl cavity (6) is opened in the middle of the inner shell (21), an injection molded bowl outer shell (2) is integrally connected to the periphery of the inner shell (21), an inner cavity (22) is opened between the inner shell (21) and the outer shell (2), and an injection cavity communicating with the inner cavity (22) is opened on the upper left side of the outer shell (2).

3. The anti-scalding double-layer hollow injection molded bowl according to claim 2, characterized in that: A plastic plug (5) is fitted onto the inner side of the injection cavity on the outer shell (2) of the injection bowl.

4. The anti-scalding double-layer hollow injection molded bowl according to claim 1, characterized in that: The closed bowl cover includes a bowl cover shell (1), a vertical groove ring (11) is fixed to the periphery of the bowl cover shell (1), an assembly screw cavity (12) is opened on the inner side of the lower end of the bowl cover shell (1), and two symmetrical positioning sleeve holes (13) are opened on the outer side of the assembly screw cavity (12) on the bowl cover shell (1).

5. A double-layer hollow injection-molded bowl with anti-scalding structure according to claim 1, characterized in that: The locking mechanism includes a positioning trapezoidal plate (4) and a rotating component. The positioning trapezoidal plate (4) is integrally fixed to the outer shell (2) of the injection molded bowl, and the rotating component is threadedly connected to the inner side of the positioning trapezoidal plate (4).

6. A double-layer hollow injection-molded bowl with anti-scalding structure according to claim 5, characterized in that: The rotating assembly includes a rotating nut (3), an adjusting screw (32) is integrally fixed to the middle of the upper end of the rotating nut (3), a rounded plug (31) is integrally fixed to the upper end of the adjusting screw (32), and the adjusting screw (32) is threadedly connected to the positioning trapezoidal plate (4).

7. A double-layer hollow injection-molded bowl with anti-scalding structure according to claim 6, characterized in that: The rounded plug (31) is fitted into the positioning hole (13) of the outer shell of the bowl lid (1) by means of the adjusting screw (32).

8. A double-layer hollow injection-molded bowl with anti-scalding structure according to claim 4, characterized in that: The outer shell of the bowl lid (1) is threadedly connected to the upper periphery of the inner shell of the injection-molded bowl (21) through the assembly screw cavity (12).

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