A long-neck metal bucket with a backflow structure
By introducing a reflux structure and a double-layer sealing design into the edible oil packaging container, the problems of oil leakage and difficulty in cleaning the oil container are solved, achieving seamless oil pouring and an environmentally friendly and economical user experience.
Patent Information
- Application Number
- CN202521234811.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-19
- Estimated Expiration
- 2035-06-17
AI Technical Summary
Traditional cooking oil containers tend to spill and drip along the container walls when pouring oil, causing waste and pollution. Furthermore, the oil containers are difficult to clean, affecting food safety and kitchen hygiene.
Design a long-necked metal bucket with a reflux structure, including a bucket body, a long-necked liquid outlet, a cover, an outer sealing cover, and a reflux nozzle. Through the cooperation of the double-layer sealing structure and the reflux nozzle, oil leakage is prevented. The oil in the bucket can be directly discarded after use, eliminating the need for using and cleaning an oil can.
It effectively prevents oil spills and drips, keeps the kitchen environment clean, simplifies the use and cleaning of oil products, is suitable for various oil drum models, and saves resources.
Smart Images
Figure CN224376210U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of edible oil packaging technology, and in particular to a long-necked metal barrel with a reflux structure. Background Technology
[0002] Traditional household cooking oil containers are typically made of metal or plastic, with common sizes including 2.5L, 4L, 5L, and 6.25L. To facilitate long-term sealed storage, these containers generally lack a reflux mechanism, as such mechanisms often interfere with the inner sealing cap. Therefore, when pouring oil directly from the container, the oil easily spills and drips along the container wall, causing waste and contamination. Nowadays, with rising living standards and increased consumer expectations for kitchen environments, consumers often use oil bottles or containers to dispense cooking oil. Using the container for cooking avoids spillage, maintains kitchen cleanliness, and meets the dual needs of modern families for hygiene and aesthetics.
[0003] However, after long-term use, a thick layer of oil residue will accumulate inside the oil container, requiring regular cleaning. Otherwise, the residual oil will easily spoil, affecting food safety and taste. Cleaning an oil container with a thick layer of grease inside is extremely difficult. In addition, when dispensing oil from an oil container into the oil container, there will be dripping, overflowing, and spillage.
[0004] Therefore, our company aims to design a long-necked metal oil drum with a detachable reflux structure, which can prevent oil from spilling when pouring oil directly from the drum without using an oil can, thus ensuring a clean kitchen environment. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a long-necked metal bucket with a reflux structure to prevent oil from being wasted and contaminated by flowing out and dripping along the bucket wall.
[0006] This utility model is achieved through the following technical solution:
[0007] A long-necked metal bucket with a reflux structure includes a bucket body, a long-necked liquid outlet funnel at the top of the bucket body, and a bucket opening on the long-necked liquid outlet funnel. The bucket is characterized by further including a cover seat, an outer sealing cap, and a reflux nozzle. The cover seat is embedded in the bucket opening, and a tear-off inner sealing cap is provided inside the cover seat. The outer sealing cap is threaded onto the outer wall of the cover seat, forming a double seal for the bucket opening. A release paper is provided inside the outer sealing cap, and a placement area is formed between the release paper and the top of the outer sealing cap. The reflux nozzle is placed in the placement area. After the bucket opening is opened, the inner sealing cap is torn off and the reflux nozzle is removed, then threaded onto the inner wall of the cover seat.
[0008] Further optimized, the cover includes a seat tube and a support ring. The support ring is fixed on the outer wall of the seat tube. A sealing ring is fixed on the outer wall of the seat tube below the support ring. A thread is provided on the outer wall of the seat tube above the support ring. An internal thread is provided on the inner wall of the seat tube.
[0009] Further optimized, the return nozzle is integrally formed and is divided into a support part, a connecting part and an oil outlet. The connecting part connects the support part and the oil outlet. The oil outlet is located in the middle of the connecting part, and the upper end of the oil outlet is tilted to one side. The connecting part is recessed downward on the other side of the tilting direction of the oil outlet to form a return part. An oil leakage hole is opened in the middle of the return part.
[0010] Further optimized, the outer wall of the support is provided with external threads that match the internal threads on the inner wall of the seat tube.
[0011] Furthermore, a support plate is fixed to the inner wall of the seat tube, the support plate is located below the internal thread, and a sealing gasket is provided at the bottom of the support part.
[0012] Further optimized, a sealing groove is provided on the inner wall of the barrel opening, and the sealing groove fits into the sealing ring on the cover.
[0013] Further optimized, the inner sealing cover is provided with a pull ring.
[0014] The beneficial effects of this utility model are:
[0015] In this new type of container, a detachable reflux nozzle is placed inside the outer sealing cap. This does not affect the double seal of the inner and outer sealing caps. After the oil drum is opened, the reflux nozzle placed in the outer sealing cap can be removed and installed on the cap seat for use. The reflux nozzle has a clever and reasonable structural design. Combined with the long-necked liquid outlet, it can effectively prevent oil from flowing out and dripping along the drum wall, thus avoiding waste and pollution.
[0016] The oil in the oil drum no longer needs to be dispensed using an oil can, saving the cost of using and cleaning oil cans. The cost of the return nozzle is low. When the oil in the oil drum is used up, it can be discarded and recycled together with the oil drum, which is clean, hygienic, simple and convenient. In addition, although oil drums come in various sizes in the real world, the size of the oil drum opening is a standard size, generally 18mm or 20mm. This new type can be applied to oil drums of different sizes and is suitable for widespread application. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0018] Figure 2 This is a three-dimensional structural diagram of the cover seat and the outer sealing cover of this utility model.
[0019] Figure 3 This is a partially enlarged schematic diagram of the connection between the reflux nozzle and the cover.
[0020] Figure 4 This is a three-dimensional structural diagram of the reflux nozzle after installation.
[0021] In the diagram: 1. Barrel body; 2. Long-necked liquid outlet; 3. Barrel opening; 4. Cover seat; 41. Seat tube; 42. Support ring; 43. Sealing ring; 44. Inner sealing cover; 45. Pull ring; 46. Internal thread; 47. Support plate; 5. Outer sealing cover; 51. Separating paper; 6. Return nozzle; 61. Support part; 611. External thread; 612. Sealing gasket; 62. Connecting part; 621. Return part; 622. Oil leakage hole; 63. Oil outlet. Detailed Implementation
[0022] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. In the description of this invention, it should be noted that the terms "left," "right," "front," "rear," "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 the invention and simplifying the description. They 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 the present invention.
[0023] like Figures 1-4 As shown, this utility model provides a long-necked metal bucket with a reflux structure, including a metal bucket body 1, a long-necked liquid outlet 2 at the top of the bucket body, and a bucket opening 3 on the long-necked liquid outlet 2. This utility model also includes a cover 4, an outer sealing cover 5, and a reflux nozzle 6. The cover 4 is embedded in the bucket opening 3, and a tear-off inner sealing cover 44 is provided inside the cover 4. The outer sealing cover 5 is threaded to the outer wall of the cover 4, forming a double seal for the bucket opening 3. An isolation paper 51 is provided inside the outer sealing cover 5, forming a placement area 52 between the isolation paper and the top of the outer sealing cover 5. The reflux nozzle 6 is placed in the placement area 52. When opening the bucket, first unscrew the outer sealing cover 5 and remove the reflux nozzle 6, then tear off the inner sealing cover 44, and thread the reflux nozzle 6 to the inner wall of the cover 4. The reflux nozzle structure is cleverly and reasonably designed, and together with the long-necked liquid outlet 2, it can effectively prevent oil from flowing out and dripping along the bucket wall, thus avoiding waste and pollution.
[0024] This design uses a reflux nozzle with each oil drum, eliminating the need for oil dispensers to refill the oil and saving on the cost of using and cleaning oil dispensers. The reflux nozzle is inexpensive, and once the oil in the drum is used up, it can be discarded along with the drum for recycling, making it clean, hygienic, simple, and convenient.
[0025] In a preferred embodiment, the cover 4 includes a seat tube 41 and a support ring 42. The support ring is fixed to the outer wall of the seat tube 41, and a sealing ring 43 is fixed to the outer wall of the seat tube 41 below the support ring 42. The outer wall of the seat tube above the support ring 42 is threaded for connection with the outer sealing cover 5. The inner wall of the seat tube is threaded with an internal thread 46 for connection with the return nozzle 6.
[0026] As a preferred implementation method, such as Figure 2 , 3 As shown, the reflux nozzle 6 is integrally formed and consists of a support part 61, a connecting part 62, and an oil outlet nozzle 63. The connecting part 62 connects the support part 61 and the oil outlet nozzle 63. The oil outlet nozzle is located in the middle of the connecting part 62, and the upper end of the oil outlet nozzle 63 is tilted to one side to facilitate smooth oil flow and reduce dripping. The connecting part 62 is recessed downward on the other side of the tilting direction of the oil outlet nozzle to form a reflux part 621. An oil leakage hole 622 is provided in the middle of the reflux part. The dripping oil flows down the outer wall of the oil outlet nozzle and flows back into the container through the reflux part and the oil leakage hole 622.
[0027] As a preferred implementation method, such as Figure 3 As shown, the outer wall of the support part 61 is provided with an external thread 611, which matches the internal thread 46 on the inner wall of the seat tube 41. The return nozzle 6 is connected to the cover seat by a thread.
[0028] As a preferred implementation method, such as Figure 3 As shown, a support plate 47 is also fixed on the inner wall of the seat tube 41. The support plate is located below the internal thread 46. A sealing gasket 612 is provided at the bottom of the support part 61. When the return nozzle 6 is connected to the cover seat 4, the sealing gasket 612 and the support plate 47 are squeezed together to prevent oil from seeping out from between the internal and external threads.
[0029] In a preferred embodiment, a sealing groove is provided on the inner wall of the barrel opening 3, and the sealing groove fits with the sealing ring 43 on the cover seat 4, and the cover seat is embedded in the barrel opening.
[0030] In a preferred embodiment, the inner sealing cover 44 is provided with a pull ring 45 to facilitate tearing open the inner sealing cover.
[0031] In addition, although oil drums come in various sizes in the real world, the size of the drum opening is a standard size, generally 18mm or 20mm. Once the design and design concept of this new type are promoted, the standard model of the reflux nozzle can be sold and used as an independent product. The reflux nozzle is connected to oil drums of different sizes, similar to a disposable consumable. One reflux nozzle is provided with each oil drum. After the oil drum is used up, it is discarded along with the oil drum. It is convenient to use, healthy, clean and hygienic, and can completely replace glass products such as oil cans and oil bottles, effectively saving resources.
[0032] It should be noted that metal oil drums generally have a detachable cap, making them more suitable for the internal thread design used in this project. Plastic drums, on the other hand, typically have a one-piece molded opening, making it inconvenient to install internal threads. Of course, this design is also applicable to oil drums made of other materials such as plastic, provided that internal threads can be installed without affecting the double seal of the oil drum.
[0033] All aspects not detailed in this utility model are well-known to those skilled in the art. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit it. 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 spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A long-neck metal bucket with a backflow structure, comprising a bucket body, a long-neck liquid outlet bucket is arranged on the top of the bucket body, and a bucket opening is arranged on the long-neck liquid outlet bucket, characterized in that: It also includes a lid base, an outer sealing cap, and a reflux nozzle. The lid base is embedded in the mouth of the bucket, and the lid base has a tear-off inner sealing cap. The outer sealing cap is threaded to the outer wall of the lid base to form a double seal for the mouth of the bucket. The outer sealing cap has a release paper inside, and a placement area is formed between the release paper and the top of the outer sealing cap. The reflux nozzle is placed in the placement area. After the mouth of the bucket is opened, the inner sealing cap is torn off and the reflux nozzle is taken out. The reflux nozzle is then threaded to the inner wall of the lid base.
2. The long-neck metal bucket with a backflow structure according to claim 1, characterized in that: The cover includes a seat tube and a support ring. The support ring is fixed on the outer wall of the seat tube. A sealing ring is fixed on the outer wall of the seat tube below the support ring. The outer wall of the seat tube above the support ring is threaded. The inner wall of the seat tube is threaded internally.
3. The long-neck metal bucket with a backflow structure according to claim 2, characterized in that: The reflux nozzle is integrally formed and consists of a support part, a connecting part, and an oil outlet. The connecting part connects the support part and the oil outlet. The oil outlet is located in the middle of the connecting part, and the upper end of the oil outlet is tilted to one side. The connecting part is recessed downward on the other side of the tilting direction of the oil outlet to form a reflux part. An oil leakage hole is provided in the middle of the reflux part.
4. The long-neck metal bucket with a backflow structure according to claim 3, characterized in that: The outer wall of the support is provided with external threads, which match the internal threads on the inner wall of the seat tube.
5. The long-neck metal bucket with a backflow structure according to claim 4, characterized in that: A support plate is also fixed on the inner wall of the seat tube. The support plate is located below the internal thread, and a sealing gasket is provided at the bottom of the support part.
6. The long-neck metal bucket with a backflow structure according to claim 2, characterized in that: A sealing groove is provided on the inner wall of the barrel opening, and the sealing groove fits into the sealing ring on the cover.
7. The long-neck metal bucket with a backflow structure according to claim 1, characterized in that: The inner sealing cap is equipped with a pull ring.