Disposable food packaging tub
By using an integrated injection-molded handle structure and a bottom groove design, the problems of poor reliability, high cost, insufficient environmental protection, weak impact resistance, and poor heat insulation in existing technologies have been solved. This has resulted in improved strength and heat insulation performance, reduced production costs, and increased production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN TONGYUAN JIALIAN PLASTIC TECH CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-07
AI Technical Summary
Existing disposable food packaging containers suffer from poor reliability at the handle connection, high cost, insufficient environmental friendliness, weak impact resistance, poor heat insulation, low production efficiency, and difficulty in balancing cost control.
The handle structure is integrally injection molded, combined with reinforcing ribs and bottom groove design to form an integrated structure, which improves the strength of the handle and enhances the heat insulation performance, while simplifying the production process.
It improves the strength and heat insulation of the handle, reduces production costs and scrap rate, meets environmental protection requirements, and enhances production efficiency and product reliability.
Smart Images

Figure CN224466335U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of food packaging barrel equipment, specifically disposable food packaging barrels for daily consumption. Background Technology
[0002] Disposable food packaging containers, as an important part of the food industry, have experienced rapid development. In food packaging applications, they have improved product quality and practicality. The challenge lies in meeting daily needs while effectively controlling costs. The integrated handle and bottom groove molding process is currently the only injection molding technology of its kind nationwide. In this process: 1. The previously separate handle is integrated with the container as a whole. Reinforcing ribs are added to the handle's bends to ensure strength and prevent the handle from detaching during use. 2. The bottom groove structure buffers impact forces, preventing deformation when stacked, and creates an insulating air layer to reduce the risk of burns from heat conduction. This integrated molding of the handle and container body reduces costs and improves structural reliability.
[0003] Chinese patent publication number CN215795830U proposes an external handle design, which is injection molded and then reassembled with the bucket body. This design has the following problems:
[0004] Poor reliability: Stress concentration at the handle connection increases the risk of breakage when the load exceeds 3kg (industry test data shows a detachment rate as high as 18%).
[0005] High cost: An additional 0.12-0.15 yuan per injection molded part and assembly process;
[0006] Insufficient environmental friendliness: The use of different materials in the components makes recycling difficult, violating the EU Directive 2019 / 904's requirement for a single material;
[0007] Insufficient impact resistance at the bottom;
[0008] Most mainstream products adopt a flat bottom design, which leads to:
[0009] Easily damaged when stacked: The bottom may be subjected to pressure exceeding 50 N / cm during transportation. 2 Plastic deformation occurs during this process (laboratory simulation data shows that the breakage rate of 10 stacked layers reaches 27%).
[0010] Lack of thermal insulation: The planar structure directly conducts heat, and when filled with 80°C liquid, the temperature of the bottom outer surface reaches 68-72°C (posing a risk of burns).
[0011] Ineffective insulation solutions;
[0012] Inefficient production process;
[0013] The industry's standard production processes have significant shortcomings:
[0014] Multi-process production: Step-by-step operations such as handle assembly and heat insulation layer bonding limit the production speed to less than 200 pieces / hour;
[0015] High scrap rate: The composite process results in a defect rate of 12-15% (mainly concentrated at the handle connection and bottom forming area).
[0016] High mold complexity: Traditional anti-scalding structures require 4-6 sets of ejection mechanisms, increasing mold manufacturing costs by 35%;
[0017] Furthermore, it has not effectively resolved the triangular contradiction between "structural strength, thermal insulation performance, and cost control". Utility Model Content
[0018] The purpose of this invention is to provide a disposable food packaging container to solve the problems mentioned in the background art.
[0019] To achieve the above objectives, the present invention provides the following technical solution: a disposable food packaging bucket, including a handle structure 1, wherein the handle structure 1 includes a handle 3, a transition block 4 and a reinforcing rib 5, the side end of the handle 3 is fixedly connected to the transition block 4, the side end of the transition block 4 is fixedly connected to the reinforcing rib 5, and the lower end of the handle structure 1 is integrally formed with the bucket body.
[0020] The bottom of the bucket is equipped with a base 6, and the handle structure 1, the bucket body, and the base 6 are integrally injection molded.
[0021] Specifically, the base 6 is provided with a groove with a depth of 2.1 mm and the outer edge of the groove is 1.5 mm higher than the bottom.
[0022] Specifically, the handle 3, transition block 4, and reinforcing rib 5 are integrally injection molded, and the barrel body is provided with a connecting block 2, which is integrally formed with the barrel body. The connecting block 2 is fixed to the handle 3, and the connecting block 2 and the handle 3 can be disassembled.
[0023] Specifically, the reinforcing rib 5 has a height of 1.5mm and a width of 1.3mm.
[0024] Specifically, the transition block 4 is set with a transition arc angle.
[0025] Specifically, the handle 3 has a longitudinal arc radius of R65mm, an increased total height of 4.4mm, and a thickness of 1.6mm to fit the width of an adult's palm.
[0026] Compared with the prior art, the beneficial effects of this utility model are:
[0027] The one-piece molded handle food bucket is a brand new injection molding process that can increase production output and reduce labor costs.
[0028] Integrated handle: Seamlessly connected to the edge of the bucket opening, avoiding secondary assembly;
[0029] The bottom of the recess: achieves both pressure resistance and heat insulation through geometric optimization.
[0030] The handle structure 1 is horizontally connected to the barrel body, and is injection molded as a whole product without a split structure. The two ends of the handle are horizontally injection molded, and the middle of the handle is vertically injection molded. There is a connecting block 2 between the handle and the barrel body to ensure that the product is fixed before use. The connecting block 2 is thickened to 1.6mm to reduce stress concentration. The 9.1mm radius arc surface serves to prevent bumps. The thickness gradient design at the root avoids sudden stress. The reinforcing rib 5 is 1.5mm high and 1.3mm wide, and its function is to increase strength and prevent deformation at the connection when bending.
[0031] The transition block 4 is the connection point between the horizontal and vertical sides of the handle. The transition position has a 2.9mm transition arc angle and connects to the 1.8mm straight segment with another 2.9mm arc angle, thereby improving the strength and toughness of the handle.
[0032] The handle has three longitudinal arcs with an radius of 65mm, increasing the total height by 4.4mm and the thickness by 1.6mm to fit the width of an adult's palm, conforming to the ergonomic grip curve;
[0033] Mechanical properties: Laboratory pressure tests show 50 N / cm 2 The drop test (1.2m height) with deformation under load <0.3mm has a 100% pass rate (GB / T 4857.5 standard).
[0034] Air gap effect: The outer edge of the groove is 1.5mm higher than the bottom, and the groove depth is 2.1mm. The air gap formed by the base 6 increases the thermal resistance to 0.25m. 2 K / W measured data: After being filled with 90℃ hot water for 2 hours, the outer surface temperature is ≤48℃. It can effectively block heat sources when held by the edge and provides effective protection at the bottom in case of a drop. Attached Figure Description
[0035] Figure 1 This is a perspective view of the main body of this utility model;
[0036] Figure 2 This is a first-view plan view of the main body of this utility model;
[0037] Figure 3 This is a second-view plan view of the main body of this utility model;
[0038] Figure 4This is a top view of the main body of this utility model.
[0039] In the diagram: 1-Handle structure; 2-Connecting block; 3-Handle; 4-Transition block; 5-Reinforcing rib; 6-Base. Detailed Implementation
[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0041] Please see Figure 1-4 This utility model provides a technical solution: a disposable food packaging bucket, including a handle structure 1, the handle structure 1 including a handle 3, a transition block 4 and a reinforcing rib 5, the side end of the handle 3 is fixedly connected to the transition block 4, the side end of the transition block 4 is fixedly connected to the reinforcing rib 5, and the lower end of the handle structure 1 is integrally formed with the bucket body.
[0042] The bottom of the barrel is equipped with a base 6. The handle structure 1, the barrel body, and the base 6 are integrally injection molded to form this packaging barrel structure. The handle structure 1 is composed of a handle 3, a transition block 4, and a reinforcing rib 5. The handle 3, transition block 4, and reinforcing rib 5 are integrally injection molded. When in use, pulling the handle 3 causes the handle 3 to move the transition block 4 and the reinforcing rib 5, making it convenient to pick up the packaging barrel structure. The transition block 4 is designed for easy transition protection. The handle 3 is used to connect the barrel body, and the structure of the base 6 can better lock in heat and reduce heat loss. The connecting block 2 can support the handle structure 1. When in use, the handle structure 1 and the connecting block 2 can be separated, and the handle structure 1 can be used for picking up the barrel.
[0043] The base 6 has a groove with a depth of 2.1mm, and the outer edge of the groove is 1.5mm higher than the bottom.
[0044] The handle 3, transition block 4, and reinforcing rib plate 5 are integrally injection molded, and the barrel body is provided with a connecting block 2. The connecting block 2 is integrally formed with the barrel body, and the handle 3 is fixed to the connecting block 2. The connecting block 2 and the handle 3 can be disassembled.
[0045] The height of the reinforcing rib 5 is 1.5mm and the width is 1.3mm.
[0046] Transition block 4 uses a transition arc angle setting.
[0047] The handle has a vertical arc radius of R65mm, and its height is increased by 4.4mm, with a thickness of 1.6mm to fit the width of an adult's palm.
[0048] Working principle: When needed, the user integrally injection molds the handle structure 1, the barrel body, and the base 6 to form this packaging barrel structure. The handle structure 1 is composed of a handle 3, a transition block 4, and a reinforcing rib 5. The handle 3, transition block 4, and reinforcing rib 5 are integrally injection molded. When in use, pulling the handle 3 causes the handle 3 to move the transition block 4 and the reinforcing rib 5, facilitating the handling of the packaging barrel structure. The transition block 4 provides convenient transition protection. The handle 3 is used to connect the barrel body, and the structure of the base 6 can better lock in heat and reduce heat loss. The connecting block 2 supports the handle structure 1. When in use, the handle structure 1 and the connecting block 2 can be separated, and the barrel can be handled through the handle structure 1 to complete the work.
[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A disposable food packaging container, characterized in that: The bucket includes a handle structure (1), which includes a handle (3), a transition block (4) and a reinforcing rib (5). The side end of the handle (3) is fixedly connected to the transition block (4), and the side end of the transition block (4) is fixedly connected to the reinforcing rib (5). The lower end of the handle structure (1) is integrally formed with the bucket body. The bottom of the barrel is equipped with a base (6), and the handle structure (1), barrel body and base (6) are integrally injection molded.
2. The disposable food packaging container according to claim 1, characterized in that: The base (6) has a groove with a depth of 2.1 mm and the outer edge of the groove is 1.5 mm higher than the bottom.
3. The disposable food packaging container according to claim 2, characterized in that: The handle (3), transition block (4), and reinforcing rib (5) are integrally injection molded, and the barrel body is provided with a connecting block (2). The connecting block (2) is integrally formed with the barrel body, and the handle (3) is fixed on the connecting block (2). The connecting block (2) and the handle (3) can be disassembled.
4. The disposable food packaging container according to claim 3, characterized in that: The reinforcing rib (5) has a height of 1.5 mm and a width of 1.3 mm.
5. The disposable food packaging container according to claim 4, characterized in that: The transition block (4) is set with a transition arc angle.
6. The disposable food packaging container according to claim 5, characterized in that: The handle (3) has a longitudinal arc radius of R65mm, a total height increase of 4.4mm, and a thickness of 1.6mm to fit the width of an adult's palm.