Electric cooker with water quantity detection function

By designing a float plate and measuring rod in the rice cooker, the water level and the softness/hardness of the rice can be detected, solving the problem that existing rice cookers cannot conveniently detect these parameters, thus improving the user's ease of operation and the controllability of rice quality.

CN224085075UActive Publication Date: 2026-04-07ZHANJIANG HALLSMART ELECTRICAL APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing rice cookers cannot easily detect the internal water level and the firmness of the rice, making it impossible to adjust the water volume and rice firmness appropriately according to the needs of the food.

Method used

An electric rice cooker was designed, comprising a float, a measuring rod, a locking assembly, and a hardness/softness detection assembly. The water level is detected by the cooperation of the measuring rod and the float. After the float comes into contact with the rice, the drive seat drives the float to press the rice in, and the hardness/softness of the rice is detected by a pressure sensor.

Benefits of technology

It enables convenient detection of water level and rice firmness during rice cooker operation, helping users adjust water volume and rice firmness according to their needs, thus improving the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric cooker with a water quantity detection function, which comprises a cooker body and a cooker cover, the cooker cover is arranged on the cooker body and is rotatably connected with the cooker body, a mounting cover is arranged at the top end of the cooker body, the electric cooker further comprises a water quantity detection assembly, the water quantity detection assembly comprises a floating plate and a measuring rod, and the floating plate is arranged on the mounting cover. The bottom end of the measuring rod sequentially penetrates through the mounting cover and the cooker cover and is provided with the floating plate, the measuring rod can slide relative to the mounting cover and the cooker cover, a clamping groove is formed in the outer side of the part, arranged in the mounting cover, of the measuring rod, scale marks are arranged on the surface of the measuring rod, and the floating plate is arranged on the measuring rod. According to the electric cooker with the water quantity detection function, a user can conveniently detect the water level in the electric cooker in the working process of the electric cooker.
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Description

TECHNICAL FIELD

[0001] The utility model relates to electric rice cooker technical field, specifically to a kind of electric rice cooker with the function of detecting water volume. BACKGROUND

[0002] Electric rice cooker is a kind of modern kitchen utensils that can steam, cook, stew, bake, braise and other processing. It not only can cook food, but also can keep warm, clean and pollution-free, time-saving and labor-saving, is one of the indispensable tools of housework modernization, kitchen appliances using electric heating to cook food; its working temperature is mostly around 100 ℃, can steam, cook, stew, bake, braise and other cooking operations.

[0003] The existing electric rice cooker is inconvenient to detect the water level in the electric rice cooker during use, so that the water volume cannot be added according to the needs of different food during use, which can affect the taste of food. UTILITY MODEL CONTENTS

[0004] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide an electric rice cooker with the function of detecting water volume, which can detect the water level in the electric rice cooker during the working process of the user.

[0005] The utility model achieves the following technical scheme:

[0006] An electric rice cooker with the function of detecting water volume, comprising a pot body and a pot cover, the pot cover is arranged on the pot body and connected with the pot body, the top end of the pot body is provided with a mounting cover;

[0007] It also includes a water volume detection assembly, the water volume detection assembly includes a floating plate and a measuring rod, the bottom end of the measuring rod penetrates the mounting cover and the pot cover in sequence and is installed with the floating plate, the measuring rod can slide relative to the mounting cover and the pot cover, the outside of the measuring rod placed in the mounting cover is provided with a clamping groove, and the surface of the measuring rod is provided with a scale line;

[0008] It also includes a locking assembly, the locking assembly is arranged in the mounting cover, the locking assembly includes a first guide column fixed to the inner wall of the mounting cover, a clamping block slidably connected with the first guide column and a first elastic member sleeved outside the first guide column, the clamping block is adapted to move towards the measuring rod under the elastic force of the first elastic member and be buckled with the clamping groove, and an inclined surface is formed on the upper end of the clamping block;

[0009] Further, the softness detection assembly comprises a second elastic member arranged between the abutting seat and the driving seat, a pressure sensor arranged at one end of the driving seat facing the second elastic member, and a driving member in transmission connection with the driving seat, the top end of the second elastic member is fixedly connected with the surface of the pressure sensor and can move together with the driving seat.

[0010] Further, the floating plate comprises a body arranged in a ring shape and connecting rods uniformly arranged inside the body, the ends of the connecting rods are fixedly connected with the measuring rods, and the outer diameter of the floating plate is matched with the inner diameter of the pot body.

[0011] Further, the floating plate is hollow.

[0012] Further, the water amount detection assembly further comprises a plurality of second guide columns, the plurality of second guide columns are installed at one end of the body facing the pot cover and are distributed in a circumferential array with the center of the body as the center, and the ends of the plurality of second guide columns away from the body are in sliding connection with the pot cover.

[0013] Further, the softness detection assembly further comprises a third guide column arranged in the mounting cover, the third guide column penetrates through the driving seat and is in sliding connection with the driving seat.

[0014] Further, the top ends of the measuring rods and the pot cover are both provided with handles.

[0015] Further, the driving member comprises a driving motor arranged in the pot cover, a driving gear installed at the driving end of the driving motor, a driving screw arranged in the mounting cover and in threaded connection with the driving seat, and a transmission gear set arranged in the pot cover, the driving screw is in rotational connection with the pot cover, and the driving gear is in transmission connection with the driving screw through the transmission gear set.

[0016] Further, a groove is arranged on the fitting surface of the pot body and the pot cover, and a sealing ring matched with the groove is arranged on the fitting surface of the pot cover and the pot body.

[0017] Further, an inner container is arranged in the pot body, and a heating assembly is arranged below the inner container.

[0018] Further, a control panel is arranged on the outer side of the pot body, the control panel is in electrical connection with the heating assembly and the pressure sensor, and a display screen is integrated on the control panel, and the control panel is in electrical connection with the heating assembly and the pressure sensor.

[0019] Beneficial effects:

[0020] This invention utilizes a measuring rod that works in conjunction with a float plate to allow users to easily monitor the water level in the rice cooker during operation. This enables users to add water according to the different needs of the food being cooked. Simultaneously, the combination of a contact seat, a second elastic element, a pressure sensor, a float plate, and a drive seat allows the float plate to press into the rice after contact with it. The pressure sensor then measures the pressure to determine the firmness of the rice, allowing users to adjust the rice's texture by adding water as needed. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a rice cooker with water volume detection function according to the present invention;

[0022] Figure 2 This is a cross-sectional view of a rice cooker with a water volume detection function according to the present invention.

[0023] Figure 3 for Figure 2 Enlarged view at point A in the middle;

[0024] Figure 4 for Figure 3 A diagram from another angle;

[0025] Figure 5 This is a front view of a rice cooker with a water volume detection function according to the present invention.

[0026] Figure 6 for Figure 5 Schematic diagram of section AA;

[0027] Figure 7 for Figure 5 Schematic diagram of the structure of section BB;

[0028] Figure 8 This is a schematic diagram of the structure of a rice cooker lid with water volume detection function according to the present invention;

[0029] Figure 9 This is a partial cross-sectional view of a rice cooker lid with a water level detection function according to this utility model.

[0030] Figure 10 This is a schematic diagram of the structure of a rice cooker lid with water volume detection function from another angle.

[0031] Figure label:

[0032] 10. Pot body; 101. Groove; 102. Inner pot; 103. Heating component; 104. Control panel; 20. Pot lid; 201. Mounting cover; 202. Sealing ring; 30. Water level detection component; 301. Float plate; 3011. Main body; 3012. Connecting rod; 302. Measuring rod; 303. Second guide post; 40. Locking component; 401. First guide post; 402. Locking block; 403. First elastic element; 50. Softness / hardness detection component; 501. Drive seat; 502. Second elastic element; 503. Abutment seat; 504. Pressure sensor; 505. Drive component; 5051. Drive motor; 5052. Drive gear; 5053. Transmission gear set; 5054. Drive screw; 506. Third guide post. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0034] In the description of this utility model, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation 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.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] likeFigures 1-10 As shown, a rice cooker with a water level detection function includes a cooker body 10 and a cooker lid 20. The cooker lid 20 is disposed on the cooker body 10 and rotatably connected to the cooker body 10. An installation cover 201 is provided on the top of the cooker body 10.

[0038] It also includes a water level detection component 30, which includes a float plate 301 and a measuring rod 302. The bottom end of the measuring rod 302 passes through the mounting cover 201 and the pot lid 20 in sequence and is mounted on the float plate 301. The measuring rod 302 can slide relative to the mounting cover 201 and the pot lid 20. The measuring rod 302 is provided with a slot on the outer side of the inner part of the mounting cover 201. The surface of the measuring rod 302 is provided with scale lines.

[0039] It also includes a locking component 40, which is disposed inside the mounting cover 201. The locking component 40 includes a first guide post 401 fixed to the inner wall of the mounting cover 201, a locking block 402 slidably connected to the first guide post 401, and a first elastic member 403 sleeved on the outside of the first guide post 401. The locking block 402 is adapted to move toward the measuring rod 302 under the elastic force of the first elastic member 403 and engage with the locking groove. The upper end of the locking block 402 has an inclined surface.

[0040] It also includes a hardness / softness detection component 50, which includes an abutment 503 fixed to the outer side of the inner part of the measuring rod 302 located in the pot lid 20, a drive seat 501 sleeved on the inner part of the measuring rod 302 located in the mounting cover 201, a second elastic member 502 disposed between the abutment 503 and the drive seat 501, a pressure sensor 504 disposed at one end of the drive seat 501 facing the second elastic member 502, and a drive member 505 that is drively connected to the drive seat 501. The top end of the second elastic member 502 is fixed to the surface of the pressure sensor 504 and can move together with the drive seat 501.

[0041] In use, the user pours water into the pot body 10 and then closes the lid 20. To check the water level in the pot body 10, simply press the top of the measuring rod 302 so that the groove wall abuts against the inclined surface of the locking block 402, causing the locking block 402 to disengage from the groove. The measuring rod 302 then moves downward relative to the lid 20 and the mounting cover 201, causing the float 301 installed at the bottom of the measuring rod 302 to move downward into the pot body 10 until the float 301 contacts the liquid inside the pot body 10. At this point, the measuring rod 302 stops moving. The user can then check the water level in the pot body 10 using the scale on the surface of the measuring rod 302. After measuring the liquid level, the measuring rod 302 can be pulled up to engage the locking block 402 with the slot, thus fixing the measuring rod 302. When it is necessary to test the softness of the rice inside the pot 10, the user needs to press the top of the measuring rod 302 to disengage the locking block 402 from the slot. The measuring rod 302 can then move downward relative to the pot lid 20 and the mounting cover 201, causing the float plate 301 installed at the bottom of the measuring rod 302 to move downward into the pot 10 until the float plate 301 contacts the rice inside the pot 10. At the same time, the drive seat 501 drives the drive seat 501 to move downward along the axial direction of the measuring rod 302, and drives... The second elastic element 502, fixedly connected to the drive seat 501, moves downward until it abuts against the abutment seat 503. The second elastic element 502, through the abutment seat 503, drives the float 301 to compress the rice. At this time, the second elastic element 502 is compressed by a reaction force, generating pressure on the pressure sensor 504. After detecting the pressure signal, the pressure sensor 504 controls the drive motor 5051 to drive the drive seat 501 to continue moving downward by a fixed stroke. Then, the firmness of the rice is determined based on the pressure value received by the pressure sensor 504 after moving the fixed stroke. Specifically… If the rice is soft, after the drive seat 501 moves down a fixed stroke, the float 301 presses into the rice to a deeper depth. The second elastic element 502, under the action of the reaction force, deforms less, and the pressure sensor 504 detects a lower pressure value. Conversely, if the rice is hard, after the drive seat 501 moves down a fixed stroke, the float 301 presses into the rice to a shallower depth. The second elastic element 502, under the action of the reaction force, deforms more, and the pressure sensor 504 detects a higher pressure value. This method determines the firmness of the rice, allowing the user to adjust the rice's hardness by adding water.

[0042] This invention utilizes a measuring rod 302 that works in conjunction with a float 301 to allow users to easily monitor the water level in the rice cooker during operation. This enables users to add water according to the different needs of the food being cooked. Simultaneously, the combination of abutment 503, second elastic element 502, pressure sensor 504, float 301, and drive seat 501 allows the float 301 to contact the rice, and the drive seat 501 to press the float 301 into the rice. The pressure sensor 504 then measures the pressure to determine the firmness of the rice, allowing users to adjust the rice's texture by adding water as needed.

[0043] Specifically, in this embodiment, the float plate 301 includes a ring-shaped body 3011 and connecting rods 3012 evenly arranged inside the body 3011. The end of the connecting rod 3012 is fixedly connected to the measuring rod 302. The outer diameter of the float plate 301 is adapted to the inner diameter of the pot body 10. By setting the body 3011 in a ring shape, the contact area between the body 3011 and the rice is increased to avoid the body 3011 compacting the rice in contact with it when testing the hardness of the rice, which would affect the taste of the rice and interfere with the subsequent adjustment of the hardness of the rice by adding water.

[0044] In addition, in order to enable the float 301 to float when it falls into the liquid, the float 301 is hollow in this embodiment.

[0045] Meanwhile, to prevent rotation during the downward movement of the main body 3011, in this embodiment, the water volume detection component 30 further includes a plurality of second guide posts 303. The plurality of second guide posts 303 are installed on the end of the main body 3011 facing the pot lid 20 and are arranged in a circular array with the center of the main body 3011 as the center. The end of the plurality of second guide posts 303 away from the main body 3011 is slidably connected to the pot lid 20. During the downward movement of the main body 3011, the plurality of second guide posts 303 can guide the main body 3011 so that the main body 3011 can only move upward or downward along the axial direction of the measuring rod 302.

[0046] Specifically, to prevent the drive seat 501 from rotating relative to the measuring rod 302 during the movement of the drive unit 505 driving the drive seat 501, in this embodiment, the softness and hardness detection component 50 further includes a third guide post 506 disposed in the mounting cover 201. The third guide post 506 passes through the drive seat 501 and is slidably connected to the drive seat 501.

[0047] In this embodiment, the driving component 505 includes a driving motor 5051 disposed inside the pot lid 20, a driving gear 5052 mounted on the driving end of the driving motor 5051, a driving screw 5054 disposed inside the mounting cover 201 and threadedly connected to the driving seat 501, and a transmission gear set 5053 disposed inside the pot lid 20. The driving screw 5054 is rotatably connected to the pot lid 20, and the driving gear 5052 is driven by the driving screw 5054 through the transmission gear set 5053.

[0048] During operation, the drive motor 5051 rotates through the drive gear 5052, and then drives the screw 5054 to rotate through the transmission gear set 5053. The rotation of the drive screw 5054 causes the drive seat 501, which is threadedly connected to the drive screw 5054, to move upward or downward along the axial direction of the measuring rod 302. When the drive seat 501 moves downward, the second elastic element 502 fixed on the drive seat 501 will abut against the abutment seat 503 fixed on the measuring rod 302, and the measuring rod 302 will move downward through the abutment seat 503, so that the float 301 can press into the rice, and thus measure the softness and hardness of the rice in conjunction with the pressure sensor 504.

[0049] Therefore, in order to facilitate the user to tap the lid 20 and pull the measuring rod 302, a handle is installed at the top of both the measuring rod 302 and the lid 20 in this embodiment.

[0050] Meanwhile, in order to ensure the sealing of the pot body 10 and the pot lid 20, a groove 101 is provided on the contact surface of the pot body 10 and the pot lid 20, and a sealing ring 202 adapted to the groove 101 is provided on the contact surface of the pot lid 20 and the pot body 10.

[0051] Specifically, the pot body 10 is provided with an inner pot 102, and a heating component 103 is provided below the inner pot 102.

[0052] Meanwhile, in order to facilitate the user's control of the hardness detection component 50 to measure the hardness of the rice and to obtain the hardness information of the rice in real time, in this embodiment, a control panel 104 is provided on the outside of the cooker body 10. The control panel 104 is electrically connected to the heating component 103 and the pressure sensor 504.

[0053] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A rice cooker with a water level detection function, characterized in that: The pot includes a pot body and a pot lid, the pot lid is mounted on the pot body and rotatably connected to the pot body, and a mounting cover is provided at the top of the pot body; It also includes a water level detection component, which includes a float and a measuring rod. The bottom end of the measuring rod passes through the mounting cover and the pot lid in sequence and is fitted with the float. The measuring rod can slide relative to the mounting cover and the pot lid. A slot is provided on the outer side of the portion of the measuring rod inside the mounting cover. The surface of the measuring rod is provided with scale lines. It also includes a locking component, which is disposed inside the mounting cover. The locking component includes a first guide post fixed to the inner wall of the mounting cover, a locking block slidably connected to the first guide post, and a first elastic member sleeved on the outside of the first guide post. The locking block is adapted to move toward the measuring rod under the elastic force of the first elastic member and engage with the locking groove. An inclined surface is formed at the upper end of the locking block. It also includes a hardness / softness detection component, which includes an abutment fixed to the outer side of the measuring rod located inside the pot lid, a drive seat sleeved on the part of the measuring rod located inside the mounting cover, a second elastic member disposed between the abutment and the drive seat, a pressure sensor disposed at one end of the drive seat facing the second elastic member, and a drive member that is drively connected to the drive seat. The top end of the second elastic member is fixed to the surface of the pressure sensor and can move together with the drive seat.

2. The rice cooker with water volume detection function according to claim 1, characterized in that: The float plate includes a ring-shaped body and connecting rods evenly arranged inside the body. The end of the connecting rod is fixed to the measuring rod, and the outer diameter of the float plate is adapted to the inner diameter of the pot body.

3. The rice cooker with water volume detection function according to claim 2, characterized in that: The floating plate is hollow.

4. The rice cooker with water volume detection function according to claim 2, characterized in that: The water level detection component also includes a plurality of second guide posts, which are installed on the end of the body facing the lid and are arranged in a circular array with the center of the body as the center. The ends of the plurality of second guide posts away from the body are slidably connected to the lid.

5. The rice cooker with water volume detection function according to claim 1, characterized in that: The hardness / softness testing component also includes a third guide post disposed within the mounting cover, the third guide post passing through the drive seat and slidably connected to the drive seat.

6. The rice cooker with water volume detection function according to claim 1, characterized in that: Both the measuring rod and the top of the pot lid are equipped with handles.

7. The rice cooker with water volume detection function according to claim 1, characterized in that: The driving component includes a driving motor disposed inside the pot lid, a driving gear mounted on the driving end of the driving motor, a driving screw disposed inside the mounting cover and threadedly connected to the driving seat, and a transmission gear set disposed inside the pot lid. The driving screw is rotatably connected to the pot lid, and the driving gear is drivenly connected to the driving screw through the transmission gear set.

8. The rice cooker with water volume detection function according to claim 1, characterized in that: A groove is provided on the contact surface between the pot body and the pot lid, and a sealing ring adapted to the groove is provided on the contact surface between the pot lid and the pot body.

9. The rice cooker with water volume detection function according to claim 1, characterized in that: The pot is equipped with an inner pot, and a heating element is located below the inner pot.

10. The rice cooker with water volume detection function according to claim 9, characterized in that: A control panel is provided on the outside of the pot body. The control panel integrates a display screen and is electrically connected to the heating component and the pressure sensor.