Portable heat-preservation filtering goat milk bucket structure
By using an engineering plastic barrel and a triple insulation structure in the goat milk storage container, and integrating a central filter and a milk dispensing valve, the problems of cumbersome filtration, insufficient insulation, and poor portability in goat milk storage are solved, achieving convenient and safe goat milk storage.
Patent Information
- Application Number
- CN202522094948.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-09-29
AI Technical Summary
Existing goat milk storage containers have cumbersome filtration processes, are prone to contamination, have insufficient heat preservation performance, and are not portable, making it difficult to meet the needs for immediate filtration, long-term heat preservation, and safe portability.
The container is made of engineering plastic and features a triple insulation structure consisting of a polyurethane foam layer, a vacuum insulation panel, and a stainless steel inner liner. It also integrates a central filter and a bottom milk dispensing valve, achieving convenient filtration, long-lasting insulation, and portability.
It enables convenient filtration, long-lasting temperature maintenance, and safe carrying, improving the storage convenience, safety, and freshness maintenance of goat milk.
Smart Images

Figure CN224941618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dairy product storage equipment, and more specifically, to a portable insulated and filtered goat milk bucket structure. Background Technology
[0002] In the dairy product consumption sector, goat milk, due to its small fat globules, easy digestibility and absorption, and rich content of protein, vitamins, and other nutrients, is gradually becoming a preferred dairy product for families and niche consumer groups. However, existing goat milk storage containers, in practical applications, struggle to simultaneously address the three core issues of "convenient filtration, long-lasting heat preservation, and safety of use," leading to significant pain points in the handling, storage, and transport of goat milk. Specifically: Filtration is cumbersome and prone to contamination: Current goat milk filtration methods largely rely on external tools such as independent filters and filter bags. The raw milk must be filtered first, and then poured into the storage container. This "separate" operation increases complexity, especially inefficient in home-made or small-scale collection scenarios. Furthermore, the raw milk is easily exposed to air during transfer, causing secondary contamination, and spillage during pouring leads to nutrient waste. Some containers with integrated filtration functions have filters fixed at the mouth or bottom of the container, resulting in incomplete filtration, difficulty in cleaning, and potential bacterial growth with long-term use, affecting drinking safety. Insufficient heat preservation, making it difficult to maintain freshness: Goat milk nutrients are sensitive to temperature, and microorganisms easily grow at room temperature, leading to spoilage. Low-temperature storage (4-6℃) can extend the shelf life, but existing portable containers have limited heat preservation capabilities. Traditional storage containers mostly use a single insulation material (such as pearl cotton or ordinary foam), with a high thermal conductivity (usually >0.035W / (m・K)), and the heat preservation time is only 2-4 hours, which cannot meet the needs of short-distance carrying or transportation. A few high-performance insulated containers (such as stainless steel vacuum containers) have better heat preservation, but they are not designed for the characteristics of goat milk and do not integrate filtration functions, making it difficult to meet the dual needs of "heat preservation" and "purification". Shortcomings in portability and durability: The outer shell materials of existing containers have obvious defects. Metal shells are heavy, easily deformed by impacts, and deformation can easily damage the internal insulation layer; ordinary plastic shells have low strength, are prone to aging and cracking, and some inferior plastics may release harmful substances that contaminate goat milk. In addition, most containers use an "inverted pouring" method to dispense milk, which is prone to spillage during operation, especially unfriendly to the elderly and children, and cannot meet the portable use requirements of "lightweight, impact-resistant, and easy to operate".
[0003] In summary, the current market lacks goat milk storage equipment that can simultaneously achieve "instant filtration, long-lasting heat preservation, and safe portability." The industry urgently needs a storage container that integrates multiple functions and is adapted to the characteristics of goat milk to solve the pain points of existing technologies. Utility Model Content
[0004] To address the problems of cumbersome filtration, insufficient heat preservation, and poor portability of existing goat milk storage containers, this utility model provides a portable insulated and filtered goat milk bucket structure that integrates "filtration-heat preservation-portability," thereby improving the convenience, safety, and freshness maintenance of goat milk storage.
[0005] This utility model proposes a portable insulated and filtered goat milk bucket structure, including a bucket body, a sealed bucket lid, a central filter, and a milk dispensing valve. The outer part of the bucket body is made of high-strength, lightweight engineering plastic material, which is easy to rebound and not easily deformed when bumped. The inner side is provided with a polyurethane foam layer, a vacuum insulation board, and a stainless steel inner liner from the outside to the inside, forming a triple insulation structure. The vacuum insulation board is composed of a vacuum layer and a core material. The stainless steel inner liner is provided with a stamped capacity scale, with the scale set along the height of the inner liner and the scale value increasing from bottom to top, which makes it easy to intuitively see the amount of goat milk stored.
[0006] The sealing lid is fitted at the top opening of the barrel. A sealing gasket is provided on the inside of the lid. The sealing gasket is made of elastic sealing material and fits tightly against the edge of the barrel opening to ensure the barrel is sealed and reduce heat loss and external contamination.
[0007] The central filter is installed in the upper middle position of the stainless steel inner tank. The filter edge is detachably connected to the inner wall of the tank. The filter pore size is 0.1-0.5mm, which can effectively intercept impurities and milk residue in the raw milk. It is also easy to disassemble and clean, avoiding bacterial growth.
[0008] The milk dispensing valve is located at the very bottom of the container and is connected to the bottom of the stainless steel inner liner. The milk is dispensed by gravity, eliminating the need to invert the container and preventing spillage.
[0009] 1. Convenient and safe filtration: The central filter is integrated inside the container, and the raw milk can be poured directly into the container to complete the filtration without the need for external tools or transfer operations, reducing the risk of secondary contamination and spillage; the detachable filter design makes it easy to clean, avoids residual impurities from breeding bacteria, and ensures the safety of goat milk for drinking.
[0010] 2. Excellent heat preservation performance: It adopts a triple insulation structure of "polyurethane foam layer + vacuum insulation board + stainless steel inner liner". The thermal conductivity of polyurethane foam layer is 0.022-0.030W / (m・K) and can fit tightly to the barrel to reduce heat leakage; the thermal conductivity of vacuum insulation board is 0.008-0.015W / (m・K) and its heat preservation performance is 2-3 times that of polyurethane foam, and its thickness is only 3-10mm, which does not increase the volume of the barrel; the stainless steel inner liner has both heat preservation and easy cleaning properties. The triple structure works together to achieve long-term heat preservation and can maintain a refrigeration temperature of 4-6℃ for 6-12 hours, extending the shelf life of goat milk.
[0011] 3. Enhanced Portability and Durability: The outer body of the container is made of engineering plastic, which is high in strength and lightweight. It is easy to rebound and not easily deformed after being bumped, making it suitable for short-distance carrying and outdoor use. The bottom gravity milk dispensing valve design allows for easy dispensing of goat milk without inverting, making operation convenient and preventing spills. The capacity scale makes it easy to accurately control the storage volume, improving the user experience. The components are highly integrated with no redundant design. While achieving the functions of "filtration-heat preservation-portability", the container size is moderate, making it suitable for use in various scenarios such as families, small farms and outdoor activities. Attached Figure Description
[0012] Figure 1 This is a split view of the overall structure of this utility model. In the diagram: 1. Bucket body; 101. Polyurethane foam layer; 102. Vacuum insulation panel; 103. Stainless steel inner liner; 104. Capacity scale; 2. Sealed lid; 201. Sealing gasket; 3. Central filter; 4. Milk dispensing valve. Detailed Implementation
[0013] To make the technical solution of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments.
[0014] Example 1 As shown in the figure, the outer engineering plastic of the barrel body 1 is made of ABS resin through injection molding, with a wall thickness of 3-5mm to ensure strength and lightweight; the polyurethane foam layer 101 is filled by on-site foaming process, with a thickness of 10-15mm, and after foaming, it is tightly bonded to the plastic shell and vacuum insulation board without gaps; the vacuum insulation board 102 is made of glass fiber core material and aluminum-plastic composite film sealing film, with a thickness of 5mm, and cut into an arc shape to fit the inner wall of the barrel; the stainless steel inner liner 103 is made of 304 food-grade stainless steel through stretch forming process, with a wall thickness of 1-1.5mm, and the surface of the inner liner is polished for easy cleaning; the capacity scale 104 is formed on the outside of the stainless steel inner liner by stamping process, with the scale unit being milliliters (mL), a range of 0-5000mL, and a scale interval of 500mL. The sealing lid 2 is made of the same ABS resin material as the barrel body. The sealing gasket 201 is made of food-grade silicone rubber and is produced by compression molding process. It is 2-3mm thick and is pasted on the inner edge of the lid to ensure that it fits tightly with the barrel opening after closing, without any air or liquid leakage.
[0015] The central filter 3 uses food-grade PP plastic for the filter frame and nylon for the filter membrane with a 0.3mm pore size. The frame edge has a snap-fit structure that fits into the groove on the inner wall of the stainless steel inner tank, allowing for detachable connection and easy disassembly for cleaning or replacement of the filter membrane.
[0016] The main body of the milk dispensing valve is made of food-grade PP plastic, and the valve core is made of silicone. The valve is connected to the bottom of the stainless steel inner tank by threads to ensure a seal. When the valve is opened, the goat milk can flow out naturally under the action of gravity, and there is no leakage when it is closed.
[0017] Example 2 First, the vacuum insulation board 102 is adhered to the outside of the stainless steel inner liner 103 using a high-temperature adhesive, ensuring a tight fit without wrinkles. The stainless steel inner liner with the vacuum insulation board is then placed inside the outer plastic shell of the bucket body. Polyurethane foam is injected into the gap between the two, and after the foam cures, a polyurethane foam layer 101 is formed, achieving a tight bond between the three. The central filter 3 is installed in the upper middle position of the stainless steel inner liner 103 using a snap-fit structure, ensuring the filter is placed horizontally without tilting. The milk dispensing valve 4 is installed at the bottom of the bucket body 1 via a threaded connection, communicating with the stainless steel inner liner 103. After installation, a sealing test is performed to ensure no leakage. The sealing gasket 201 is adhered to the inside of the sealing lid 2, completing the lid assembly and ultimately forming a complete portable insulated and filtered goat milk bucket.
[0018] Example 3 Open the sealed lid 2 and pour the raw milk to be filtered directly into the stainless steel inner liner 103. After the raw milk is filtered by the central filter 3, impurities are intercepted above the filter, and the filtered goat milk flows into the bottom of the inner liner. After pouring, close the sealed lid 2, ensuring that the sealing gasket 201 is tightly sealed to the mouth of the container. At this time, the temperature inside the container is maintained by a triple insulation structure. If refrigeration is required, the container can be pre-cooled to 4-6℃ before pouring in the goat milk to extend the preservation time. When taking out the goat milk, there is no need to invert the container. Just open the bottom milk valve 4, and the goat milk will flow out under gravity. The remaining amount of goat milk can be clearly seen through the capacity scale 104. After use, disassemble the central filter 3 for cleaning. The stainless steel inner liner 103 can be rinsed directly with water to ensure that it is clean and free of residue.
[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A portable insulated and filtered goat milk bucket structure, characterized in that, The device includes a bucket body (1), a sealed bucket lid (2), a central filter (3), and a milk dispensing valve (4). The inner side of the bucket body (1) is provided with a polyurethane foam layer (101), a vacuum insulation board (102), and a stainless steel inner liner (103) from the outside to the inside. The outside of the bucket body (1) is made of plastic. The sealed bucket lid (2) is installed at the top opening of the bucket body (1). The central filter (3) is installed at the upper middle position of the stainless steel inner liner (103). The milk dispensing valve (4) is provided at the bottom of the bucket body (1). A sealing gasket (201) is provided on the sealed bucket lid (2). A stamped capacity scale (104) is provided on the stainless steel inner liner (103).
2. The portable insulated and filtered goat milk bucket structure according to claim 1, characterized in that, The plastic material on the outside of the barrel (1) is a high-strength and lightweight engineering plastic.
3. The portable insulated and filtered goat milk bucket structure according to claim 1, characterized in that, The thermal conductivity of the polyurethane foam layer (101) is 0.022-0.030 W / (m·K), and it is tightly bonded to the inner wall of the barrel through on-site foaming molding process.
4. The portable insulated and filtered goat milk bucket structure according to claim 1, characterized in that, The vacuum insulation panel (102) consists of a vacuum layer and a core material, with a thermal conductivity of 0.008-0.015 W / (m·K) and a thickness of 3-10 mm.
5. The portable insulated and filtered goat milk bucket structure according to claim 1, characterized in that, The milk dispensing valve (4) is connected to the bottom of the stainless steel inner liner (103) and the milk dispensing operation is achieved by gravity.
6. The portable insulated and filtered goat milk bucket structure according to claim 1, characterized in that, The sealing gasket (201) is made of elastic sealing material and fits tightly against the inner edge of the sealing barrel lid (2).
7. The portable insulated and filtered goat milk bucket structure according to claim 1, characterized in that, The capacity scale (104) is set along the height direction of the stainless steel inner liner (103), and the scale values increase sequentially from bottom to top.
8. The portable insulated and filtered goat milk bucket structure according to claim 1, characterized in that, The edge of the central filter (3) is detachably connected to the inner wall of the stainless steel inner liner (103), and the filter pore size is 0.1-0.5mm.
