Multifunctional lifting cooking equipment

By using a lifting assembly with double lifting rods and multi-threaded screws, along with a detachable sealing structure, the stability and sealing issues of the lifting rice cooker are solved, enabling a multi-mode cooking and easy-to-clean multi-functional lifting cooking device.

CN224155473UActive Publication Date: 2026-04-24曾泽文
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
曾泽文
Filing Date
2025-05-13
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing lifting rice cooker filter plate structure has problems such as easy tilting and shaking of the lifting block, slow lifting speed of the screw, and poor sealing of the pot body, which makes it impossible to achieve high-temperature sealed cooking function and limits the functional expansion of the appliance.

Method used

The lifting assembly, which uses a double lifting rod and a multi-threaded screw, combined with a removable sealing plug and a lifting clearance hole, achieves dynamic sealing, enhances the stability and lifting speed of the filter disc, and reduces steam escape through the water collection tank and drain hole.

Benefits of technology

It enables multiple cooking modes such as pressure cooking and double-boiling, improving the equipment's functional scalability and user experience, and making it easy to clean and maintain.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses lifting multifunctional cooking equipment which comprises a shell base, a heating disc, an inner container, a top cover, a filter disc assembly and a lifting assembly. The filter disc assembly comprises a filter disc main body, a connecting pipe and a lifting block; the lifting block is detachably placed above the lifting assembly; the lower part of the connecting pipe is fixed on the filter disc main body; the lifting assembly is used for enabling the lifting block to move upwards; a lifting avoiding hole is formed in the top cover, and a sealing rubber plug is embedded in the lifting avoiding hole; and the connecting pipe can penetrate through the sealing rubber plug. The lifting device has the advantages of being stable in lifting, closed in cooking, flexible in operation and the like, various cooking requirements of steaming, boiling, stewing, stewing and the like can be met, and the practical value and the user experience of kitchen electric appliances are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of cooking appliance technology, and in particular to a lifting and multi-functional cooking device. Background Technology

[0002] As an innovative type of cooking appliance, the liftable steamer / cooker primarily achieves dynamic separation of ingredients and broth through a liftable filter, and has received widespread attention in the kitchen appliance field in recent years. Existing technologies, such as the liftable rice cooker filter structure disclosed in Chinese patent CN213963005U, employ a single side-mounted lifting rod to drive the filter's movement, with the filter lifting and lowering achieved through the cooperation of a lifting block and a lead screw. However, this structure has significant drawbacks in practical applications: Firstly, the use of a single lifting rod for the filter to move with the lifting block makes the lifting block prone to tilting and wobbling during the lifting process; the lead screw below the lifting rod uses a single-threaded lead screw, resulting in poor speed of movement for the lifting rod. Secondly, the pot's sealing structure is weak, leading to significant steam leakage and difficulty in maintaining internal pressure, thus preventing the realization of cooking functions requiring a sealed, high-temperature environment (such as pressure cooking rice, stewing, etc.), greatly limiting the appliance's functional versatility. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a lifting and multi-functional cooking device.

[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a lifting multi-functional cooking device, including: a shell base, a heating plate, an inner pot, a top cover, a filter plate assembly and a lifting assembly;

[0005] The housing is provided with a cooking cavity, and the heating plate is located at the bottom of the cooking cavity; the inner liner is detachably placed in the cooking cavity; the top cover is detachably placed on top of the housing and can seal the cooking cavity;

[0006] The filter disc assembly includes a filter disc body, a connecting pipe, and a lifting block; the lifting block is detachably placed on top of the lifting assembly; the connecting pipe is fixed to the filter disc body at the bottom and mounted on the lifting block at the top; the lifting assembly is used to move the lifting block upwards.

[0007] The top cover is provided with a lifting clearance hole, and a sealing plug is embedded in the lifting clearance hole; the connecting pipe can be inserted through the sealing plug.

[0008] Optionally, the top cover is provided with two lifting clearance holes and sealing plugs; the connecting pipe is bent into a "U" shape, with its lower end fixed to the filter disc body, and the vertical beams on both sides are respectively inserted through the two sealing plugs.

[0009] Optionally, the lifting assembly includes a lifting motor, a lead screw, a lifting rod, and a lifting seat; the lifting motor is located on the housing; two lifting rods are provided, located at opposite ends of the lifting seat; a screw hole is provided in the center of the lifting seat; the lower part of the lead screw is connected to the lifting motor, and the upper part is threadedly connected to the screw hole of the lifting seat; two placement slots are provided below the lifting block; the two placement slots can be respectively fitted onto the upper part of the two lifting rods.

[0010] Optionally, the threads of the lead screw and the lifting seat are multi-start threads.

[0011] Optionally, the lead screw has a multi-start thread lead greater than 12mm and a pitch greater than 3mm.

[0012] Optionally, the multi-start thread of the lead screw has 4 helical grooves, a lead of 13.2 mm, and a pitch of 3.3 mm.

[0013] Optionally, a lifting channel is provided on one side of the housing, and the lifting rod passes through the lifting channel.

[0014] Optionally, a water collection trough is provided above the lifting channel; the water collection trough has a drain hole.

[0015] Optionally, an overlapping ring platform is provided above the shell base; the inner liner can be overlapped on the overlapping ring platform; the top cover can be fitted onto the overlapping ring platform.

[0016] The beneficial effects of this utility model are as follows: A detachable sealing structure, such as a tight fit between a sealing plug and a lifting clearance hole, achieves dynamic sealing between the top cover and the housing, reducing steam escape and maintaining internal pressure. This supports multiple cooking modes, including pressure cooking and double-boiling, significantly enhancing its functional versatility. The inner pot, filter plate assembly, and lifting block are detachably connected, facilitating cleaning and maintenance. They also adapt to quick switching between different cooking scenarios, meeting the dual needs of home users for convenience and multifunctionality. This device combines stable lifting, sealed cooking, and flexible operation, covering various cooking needs such as steaming, boiling, stewing, and simmering, significantly improving the practical value and user experience of kitchen appliances.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of the multifunctional cooking equipment of this utility model;

[0020] Figure 2 for Figure 1 An exploded view of a multi-functional cooking appliance.

[0021] Explanation of key component symbols:

[0022] 10. Shell base; 11. Lifting channel; 12. Water collection tank; 13. Drain hole; 14. Overlapping ring platform; 20. Heating plate; 30. Inner liner; 40. Top cover; 41. Lifting clearance hole; 42. Sealing plug; 50. Filter plate assembly; 51. Filter plate body; 52. Connecting pipe; 53. Lifting block; 60. Lifting assembly; 61. Lifting motor; 62. Lead screw; 63. Lifting rod; 64. Lifting seat. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0026] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Example

[0028] Reference Figure 1 and Figure 2 The present invention proposes a lifting multi-functional cooking device, comprising: a shell base 10, a heating plate 20, an inner pot 30, a top cover 40, a filter plate assembly 50, and a lifting assembly 60;

[0029] The housing 10 is provided with a cooking cavity, and the heating plate 20 is located at the bottom of the cooking cavity; the inner liner 30 is detachably placed in the cooking cavity; the top cover 40 is detachably placed on the top of the housing 10 and can seal the cooking cavity.

[0030] The filter disc assembly 50 includes a filter disc body 51, a connecting pipe 52, and a lifting block 53; the lifting block 53 is detachably placed above the lifting assembly 60; the connecting pipe 52 is fixed to the filter disc body 51 at the bottom and installed on the lifting block 53 at the top; the lifting assembly 60 is used to move the lifting block 53 upwards.

[0031] The top cover 40 is provided with a lifting clearance hole 41, and a sealing plug 42 is embedded in the lifting clearance hole 41; the connecting pipe 52 can be fitted with the sealing plug 42.

[0032] In this invention, the top cover 40 and the housing 10 are connected by a detachable sealing structure, such as the tight fit between the sealing plug 42 and the lifting clearance hole 41, to achieve dynamic sealing, reduce steam loss, and maintain internal pressure. This supports multiple cooking modes, including pressure cooking and double-boiling, significantly enhancing the functionality. The inner pot 30, filter plate assembly 50, and lifting block 53 are detachably connected for easy cleaning and maintenance, while also allowing for quick switching between different cooking scenarios, meeting the dual needs of home users for convenience and multifunctionality. This device combines the advantages of stable lifting, sealed cooking, and flexible operation, covering various cooking needs such as steaming, boiling, stewing, and simmering, significantly improving the practical value and user experience of kitchen appliances.

[0033] In this embodiment, the top cover 40 is provided with two lifting clearance holes 41 and sealing plugs 42; the connecting pipe 52 is bent into a "U" shape, with its lower end fixed to the filter plate body 51, and the vertical beams on both sides are respectively inserted through the two sealing plugs 42. The top cover 40 is provided with a double lifting clearance hole 41 and a U-shaped connecting pipe 52 structure, which supports the filter plate assembly 50 by symmetrical force on both sides, significantly improving the balance and stability during the lifting process and avoiding the problem of filter plate tilting caused by unilateral force; at the same time, the double sealing plugs 42 further enhance the dynamic sealing effect, reduce the risk of steam escaping from the connecting pipe 52 circumferentially, ensure stable pressure in the cooking cavity, and are suitable for long-term stewing or high-pressure cooking scenarios.

[0034] In this embodiment, the lifting assembly 60 includes a lifting motor 61, a lead screw 62, lifting rods 63, and a lifting seat 64. The lifting motor 61 is located on the housing 10. Two lifting rods 63 are provided, located at opposite ends of the lifting seat 64. A screw hole is provided in the center of the lifting seat 64. The lower part of the lead screw 62 is connected to the lifting motor 61, and the upper part is threadedly connected to the screw hole of the lifting seat 64. Two placement slots are provided below the lifting block 53. The two placement slots can be respectively fitted onto the upper part of the two lifting rods 63. The structure of the lifting seat 64 being driven by the dual lifting rods 63 and the central multi-start lead screw 62 is adopted. The dual lifting rods 63 are symmetrically distributed at both ends of the lifting seat 64, forming a stable dual-point support, ensuring the stability of the vertical movement of the lifting block 53 and the filter plate assembly 50, and avoiding the risk of offset due to single-rod drive. At the same time, the lifting motor 61 cooperates with the screw hole of the lifting seat 64 through the multi-start lead screw 62, and utilizes the high lead characteristics of the multi-start thread to significantly improve the lifting speed and transmission efficiency of the filter plate, meeting the dual needs of rapid separation of soup and water and slow, fine cooking.

[0035] Preferably, the threads of the lead screw 62 and the lifting seat 64 are multi-start threads. The multi-start thread design of the lead screw 62 and the lifting seat 64 increases the effective contact area by increasing the number of thread starts, reducing the load pressure of a single thread, reducing wear between the lead screw 62 and the threaded hole, and extending service life. The high lead characteristics of the multi-start thread can realize the high-speed response of the lifting assembly 60, shorten the lifting time of the filter plate, and improve cooking efficiency.

[0036] Specifically, after testing, in order to achieve relatively stable and rapid movement and a high support effect, the number of spiral grooves of the lead screw 62 is greater than or equal to 3, the lead of the multi-start thread of the lead screw 62 is greater than 12mm, the pitch is greater than 3mm, and the diameter of the multi-start thread hole of the lead screw 62 is greater than 6mm.

[0037] Preferably, based on the cooking capacity requirements of cookware commonly used in the market, the multi-start thread of the lead screw 62 has 4 spiral grooves, a lead of 13.2 mm, a pitch of 3.3 mm, and a multi-start thread bore diameter of 9.7 mm. For example, a multi-start lead screw 62 and thread with a diameter of M9.7x13.2 / (p3.3) can be used.

[0038] In this embodiment, a lifting channel 11 is provided on one side of the housing 10, and the lifting rod 63 passes through the lifting channel 11. The lifting channel 11 on the side wall of the housing 10 physically limits the movement trajectory of the lifting rod 63, preventing the rod from deviating or swaying during the lifting process, and further improving the vertical movement accuracy of the filter disc assembly 50; at the same time, the lifting channel 11 can isolate the external environment from contamination of the internal transmission structure, reducing the risk of impurities entering and causing blockage.

[0039] In this embodiment, a water collection tank 12 is provided above the lifting channel 11; the water collection tank 12 has a drain hole 13. The addition of the water collection tank 12 and drain hole 13 at the top of the lifting channel 11 can collect liquids (such as steam condensate, soup splashes, etc.) that condense or seep in along the lifting rod 63 during cooking, and discharge them in a directional manner through the drain hole 13, so as to avoid the accumulation of liquid affecting the operation of the lifting assembly 60 or corroding the internal structure, and extend the service life of the equipment.

[0040] In this embodiment, an overlapping ring platform 14 is provided above the housing 10; the inner liner 30 can be overlapped on the overlapping ring platform 14; and the top cover 40 can be fitted onto the overlapping ring platform 14. The overlapping ring platform 14 at the top of the housing 10 forms a nested sealing structure with the inner liner 30 and the top cover 40: the inner liner 30 overlapping the ring platform ensures its precise alignment with the heating plate 20, improving heating uniformity; the top cover 40 fitted onto the ring platform enhances the sealing effect by increasing the contact area, and combined with the sealing plug 42, further prevents steam leakage, providing double sealing protection for high-pressure cooking.

[0041] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A lifting and multi-functional cooking device, characterized in that, include: The shell (10), heating plate (20), inner liner (30), top cover (40), filter plate assembly (50) and lifting assembly (60); The housing (10) is provided with a cooking cavity, and the heating plate (20) is provided at the bottom of the cooking cavity; the inner liner (30) is detachably placed in the cooking cavity; the top cover (40) is detachably placed on the top of the housing (10) and can seal the cooking cavity; The filter disc assembly (50) includes a filter disc body (51), a connecting pipe (52), and a lifting block (53); the lifting block (53) is detachably placed above the lifting assembly (60); the connecting pipe (52) is fixed to the filter disc body (51) at the bottom and installed on the lifting block (53) at the top; the lifting assembly (60) is used to move the lifting block (53) upwards. The top cover (40) is provided with a lifting clearance hole (41), and a sealing plug (42) is embedded in the lifting clearance hole (41); the connecting pipe (52) can be inserted through the sealing plug (42).

2. The lifting multi-functional cooking device according to claim 1, characterized in that: The top cover (40) is provided with two lifting clearance holes (41) and sealing plugs (42); the connecting pipe (52) is bent into a "U" shape, and the lower end is fixed to the filter disc body (51), and the vertical beams on both sides are respectively inserted through the two sealing plugs (42).

3. The lifting multi-functional cooking device according to claim 1, characterized in that: The lifting assembly (60) includes a lifting motor (61), a lead screw (62), a lifting rod (63), and a lifting seat (64); the lifting motor (61) is located on the housing (10); there are two lifting rods (63), located at opposite ends of the lifting seat (64); a screw hole is provided in the center of the lifting seat (64); the lower part of the lead screw (62) is connected to the lifting motor (61), and the upper part is threadedly connected to the screw hole of the lifting seat (64); two placement slots are provided below the lifting block (53); the two placement slots can be respectively fitted onto the upper part of the two lifting rods (63).

4. The lifting multi-functional cooking device according to claim 3, characterized in that: The threads of the lead screw (62) and the lifting seat (64) are multi-start threads.

5. The lifting multi-functional cooking device according to claim 4, characterized in that: The lead screw (62) has a multi-start thread lead greater than 12mm and a pitch greater than 3mm.

6. The lifting multi-functional cooking device according to claim 5, characterized in that: The lead screw (62) has 4 helical grooves, a lead of 13.2 mm, and a pitch of 3.3 mm.

7. The lifting multi-functional cooking device according to claim 3, characterized in that: A lifting channel (11) is provided on one side of the housing (10), and the lifting rod (63) passes through the lifting channel (11).

8. The lifting multi-functional cooking device according to claim 7, characterized in that: A water collection trough (12) is provided above the lifting channel (11); the water collection trough (12) is provided with a drain hole (13).

9. The lifting multi-functional cooking device according to claim 1, characterized in that: An overlapping ring platform (14) is provided above the shell base (10); the inner liner (30) can be placed on the overlapping ring platform (14); the top cover (40) can be fitted onto the overlapping ring platform (14).

Citation Information

Patent Citations

  • Filter disc capable of being used for lifting type rice water cooker

    CN213963005U