Protective device for degradable plastic meal box
By designing a protective device for the biodegradable plastic lunch box, the top cover is quickly locked and released by utilizing the cooperation of a card block, a shift block and a spring, which solves the problem of complex operation in the existing technology, improves the convenience of use and the stability of the lunch box, and reduces the risk of food spillage.
Patent Information
- Application Number
- CN202422158879.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The protective devices of existing plastic lunch boxes are complicated and inconvenient to operate, especially requiring extra time and energy to be consumed during use.
A protective device including a shell, a top cover, a fixing mechanism and a stabilizing mechanism is designed. The top cover can be quickly locked and released by the cooperation of a clamping block, a shifting block and a spring, and the stability of the lunch box is improved by a support and a stabilizing ring.
The top cover can be quickly closed and opened, which reduces operation time and improves ease of use. The stability of the lunch box in the shell is enhanced through the stabilizing mechanism, reducing the possibility of food spilling.
Smart Images

Figure CN223371683U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of protective devices, in particular to a protective device for a degradable plastic lunch box. Background Art
[0002] Plastic lunch boxes are containers made of food-grade plastic raw materials and are widely used for takeout food and delivery services. Common plastic lunch boxes on the market are mainly made of polypropylene and polystyrene. When purchasing and using plastic lunch boxes, you should pay attention to checking the product's packaging, labeling, appearance and smell to ensure that the lunch box is in good hygiene and the material is safe and suitable for holding food.
[0003] Upon investigation, a Chinese utility model patent discloses a protective device for a plastic lunch box (patent announcement number: CN213169199U), which includes a lunch box body, a protective shell is provided on the outside of the lunch box body, a contact plate 1 is provided on the inner wall of the protective shell, a support plate is fixedly connected to the inner wall of the contact plate 1, and a contact plate 2 is fixedly connected to the inner wall of the support plate.
[0004] In the above patent, by placing the lunch box body in a protective shell, the user is less likely to be scalded when using the above device to transfer hot soup, and the lunch box body, the box lid and the protective cover are fixed by a threaded rod. In actual use, whether opening or closing the protective shell, the threaded rod needs to be rotated. This process not only consumes extra time, but also increases the complexity and inconvenience of the operation.
[0005] Therefore, the utility model provides a protective device for a degradable plastic lunch box to solve the above problems. Summary of the Invention
[0006] The utility model provides a protective device for a degradable plastic lunch box, aiming to solve the problems raised in the background technology.
[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a protective device for a degradable plastic lunch box, which comprises an outer shell, a lunch box body arranged inside the outer shell, a top cover movably mounted on the outer shell for closing the outer shell, a fixing mechanism arranged on the outer shell for fixing the top cover, and a stabilizing mechanism arranged inside the outer shell for stabilizing the lunch box body; the fixing mechanism comprises a mounting shell fixedly mounted on the outer shell, a clamping block slidably mounted inside the mounting shell, a shifting block fixedly mounted on the clamping block, and a second spring arranged inside the mounting shell.
[0008] Furthermore, the top cover is provided with a plug-in slot for the card block, the shift block passes through the mounting shell, the mounting shell is provided with a slide slot for the shift block to slide, one end of the second spring is fixedly connected to the card block, and the other end of the second spring is fixedly connected to the mounting shell.
[0009] Furthermore, the stabilizing mechanism includes a base fixedly mounted inside the shell, a pillar fixedly mounted on the base, and a stabilizing ring fixedly mounted on the pillar.
[0010] Furthermore, the top of the base fits with the bottom of the lunch box body, the inner wall of the stabilizing ring fits with the outer wall of the lunch box body, and a plurality of pillars are provided, and the plurality of pillars are distributed in a ring array.
[0011] Furthermore, a handle is fixedly connected to the top of the top cover, a pressure plate is provided inside the top cover, a first spring is provided between the top cover and the pressure plate, one end of the first spring is fixedly connected to the pressure plate, and the other end of the first spring is fixedly connected to the top cover.
[0012] Furthermore, the top of the lunch box body is movably connected to a box cover, and the top of the box cover is fitted with the bottom of the pressing plate. Beneficial effects
[0013] The utility model has a simple structure and is easy to use. Through the arrangement of the second spring, the clamping block and the shifting block, when the top cover closes the shell, the second spring can push the clamping block so that the clamping block is always inserted into the insertion slot of the top cover, thereby stably fixing the top cover. At the same time, by shifting the shifting block, the clamping block can be moved out of the clamping slot on the top cover, thereby releasing the top cover, so that the user does not need to spend too much time and can use the device through simple operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of a protective device for a degradable plastic lunch box;
[0015] Figure 2 This is a schematic diagram of the installation of a lunch box body in a protective device for a degradable plastic lunch box;
[0016] Figure 3 This is a schematic diagram of the installation of a middle pressure plate in a protective device for a degradable plastic lunch box;
[0017] Figure 4 This is a schematic diagram of the structure of a card block in a protective device for a degradable plastic lunch box;
[0018] Figure 5 This is a cross-sectional view of the outer shell of a protective device for a degradable plastic lunch box.
[0019] In the picture:
[0020] 1. Shell; 2. Top cover; 3. Base; 4. Support; 5. Stabilizing ring; 6. Lunch box body;
[0021] 7. Box cover; 8. Press plate; 9. First spring; 10. Mounting shell; 11. Second spring;
[0022] 12. Card block; 13. Dial block. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0024] The utility model provides a protective device for a degradable plastic lunch box, such as Figure 1 、 Figure 4 and Figure 5 As shown, the protective device includes a shell 1, a lunch box body 6 arranged inside the shell 1, a top cover 2 movably mounted on the shell 1 for closing the shell 1, a fixing mechanism arranged on the shell 1 for fixing the top cover 2, and a stabilizing mechanism arranged inside the shell 1 for stabilizing the lunch box body 6; the fixing mechanism includes a mounting shell 10 fixedly mounted on the shell 1, a clamping block 12 slidably mounted inside the mounting shell 10, a shifting block 13 fixedly mounted on the clamping block 12, and a second spring 11 arranged inside the mounting shell 10.
[0025] The top cover 2 is provided with a plug-in slot for the card block 12 to be plugged in, the shift block 13 passes through the mounting shell 10, and the mounting shell 10 is provided with a slide slot for the shift block 13 to slide. One end of the second spring 11 is fixedly connected to the card block 12, and the other end of the second spring 11 is fixedly connected to the mounting shell 10.
[0026] The device can be used when the lunch box body 6 is filled with hot soup. The lunch box body 6 is placed inside the shell 1, and the top cover 2 is buckled on the shell 1 to close the shell 1, thereby playing a protective role when the user transfers the soup and reducing the possibility of being scalded. The fixation of the top cover 2 is achieved by the above-mentioned card block 12. When the top cover 2 is buckled on the shell 1, its edge will squeeze the arc surface of the card block 12, thereby forcing the card block 12 to shrink inside the mounting shell 10 and compressing the second spring 11 at the same time. When the top cover 2 is completely buckled on the shell 1, the plug-in slot opened on the top cover 2 will also move to the card block 12. The second spring 11 can rebound quickly. The card block 12 can be ejected from the inside of the mounting shell 10 by the force of the second spring 11 and plugged into the plug-in slot opened on the top cover 2, thereby locking the top cover 2 and achieving the closure of the shell 1 by the top cover 2. When the device needs to be opened, the user can toggle the toggle block 13 to move the card block 12 out of the card slot on the top cover 2, thereby releasing the top cover 2.
[0027] Furthermore, in order to improve the stability of the lunch box body 6 inside the shell 1, as Figure 2 、 Figure 3 and Figure 5 As shown, the stabilizing mechanism includes a base 3 fixedly mounted inside the housing 1 , a support 4 fixedly mounted on the base 3 , and a stabilizing ring 5 fixedly mounted on the support 4 .
[0028] The top of the base 3 fits with the bottom of the lunch box body 6, the inner wall of the stabilizing ring 5 fits with the outer wall of the lunch box body 6, and a plurality of pillars 4 are provided, and the plurality of pillars 4 are distributed in a ring array.
[0029] The high lunch box body 6 is placed on the base 3 inside the outer shell 1. The stabilizing ring 5 on the base 3 connected by the pillar 4 will fit with the outer wall of the high lunch box body 6, thereby stabilizing the lunch box body 6 and reducing the possibility of the high lunch box body 6 shaking inside the outer shell 1. The multiple settings of the pillar 4 are to provide stability to the stabilizing ring 5 so that it can better serve the lunch box body 6.
[0030] It should be noted that in order to facilitate users to use the protective device, Figure 1 、 Figure 2 and Figure 3 As shown, a handle is fixedly connected to the top of the top cover 2, a pressure plate 8 is provided inside the top cover 2, and a first spring 9 is provided between the top cover 2 and the pressure plate 8, one end of the first spring 9 is fixedly connected to the pressure plate 8, and the other end of the first spring 9 is fixedly connected to the top cover 2.
[0031] A handle is fixed on the top cover 2. When the top cover 2 is fixed on the outer shell 1, the user can extract the entire protective device through the handle, thereby facilitating the user to transfer the soup and food inside the device, which is more convenient to use. The first spring 9 connects the pressure plate 8 and the top cover 2 to form a whole, making it convenient for the user to use the top cover 2 to close the outer shell 1.
[0032] Furthermore, in order to reduce the possibility of food spilling inside the lunch box body 6, Figure 2 、 Figure 3 and Figure 5 As shown, the top of the lunch box body 6 is movably connected to a box cover 7, and the top of the box cover 7 is in contact with the bottom of the pressing plate 8.
[0033] A lid 7 is buckled on the lunch box body 6 to close the lunch box body 6. When the top cover 2 is fixed on the outer shell 1, the pressure plate 8 inside the top cover 2 will contact the lid 7, and the pressure plate 8 will always squeeze the lid 7 through the action of the first spring 9, thereby further improving the stability of the lunch box body 6 inside the outer shell 1, reducing the possibility of separation of the lid 7 from the lunch box body 6, and at the same time reducing the possibility of food spilling inside the lunch box body 6.
[0034] In addition, the function of the first spring 9 is not only to connect the pressure plate 8 and the top cover 2 and push the pressure plate 8 to squeeze the box cover 7. When the user needs to separate the top cover 2 from the shell 1, the first spring 9 will also provide a certain convenience. The top cover 2 is fixed to the shell 1 through the card block 12, and the first spring 9 is also in a compressed state at this time. The user moves the card block 13 to move the card block 12 out of the card slot on the top cover 2, thereby releasing the top cover 2. The top cover 2 that has lost its fixation can bounce off the shell 1 under the action of the first spring 9, thereby avoiding the card block 12 fixing the top cover 2 again after loosening the card block 13, providing a certain convenience for the user to remove the top cover 2.
[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A protective device for a degradable plastic lunch box, characterized by: The protective device comprises a housing (1), a lunch box body (6) arranged inside the housing (1), a top cover (2) movably mounted on the housing (1) for closing the housing (1), a fixing mechanism arranged on the housing (1) for fixing the top cover (2), and a stabilizing mechanism arranged inside the housing (1) for stabilizing the lunch box body (6); The fixing mechanism comprises a mounting shell (10) fixedly mounted on the housing (1), a clamping block (12) slidably mounted inside the mounting shell (10), a shifting block (13) fixedly mounted on the clamping block (12), and a second spring (11) arranged inside the mounting shell (10).
2. A protective device for a degradable plastic lunch box according to claim 1, characterized in that: The top cover (2) is provided with a plug-in slot for the card block (12) to be plugged in, the shift block (13) passes through the mounting shell (10), the mounting shell (10) is provided with a slide slot for the shift block (13) to slide, one end of the second spring (11) is fixedly connected to the card block (12), and the other end of the second spring (11) is fixedly connected to the mounting shell (10).
3. The protective device for a degradable plastic lunch box according to claim 1, characterized in that: The stabilizing mechanism comprises a base (3) fixedly mounted inside the housing (1), a pillar (4) fixedly mounted on the base (3), and a stabilizing ring (5) fixedly mounted on the pillar (4).
4. The protective device for a degradable plastic lunch box according to claim 3, characterized in that: The top of the base (3) fits with the bottom of the lunch box body (6), the inner wall of the stabilizing ring (5) fits with the outer wall of the lunch box body (6), and a plurality of the pillars (4) are provided, and the plurality of the pillars (4) are distributed in a ring array.
5. The protective device for a degradable plastic lunch box according to claim 1, characterized in that: A handle is fixedly connected to the top of the top cover (2), a pressure plate (8) is provided inside the top cover (2), a first spring (9) is provided between the top cover (2) and the pressure plate (8), one end of the first spring (9) is fixedly connected to the pressure plate (8), and the other end of the first spring (9) is fixedly connected to the top cover (2).
6. The protective device for a degradable plastic lunch box according to claim 1, characterized in that: The top of the lunch box body (6) is movably connected to a box cover (7), and the top of the box cover (7) is in contact with the bottom of the pressing plate (8).
Citation Information
Patent Citations
Protective device for plastic lunch box
CN213169199U