An automatic water adding electric rice cooker

Abstract

The utility model discloses an automatic water adding electric rice cooker, including the body of a pot, inner bag, lid body, water adding subassembly and control unit, the body of a pot has the inner chamber of upper opening, and the inner bag sets up in the inner chamber, and the lid body rotatablely installed in the upper opening, and water adding subassembly includes water tank, water chamber, pressing plate, first sealing member, second sealing member, drive rod and drive unit, and the top of water chamber is provided with the connecting pipe that communicates with water tank, and the bottom of water chamber is provided with the water outlet, and the bottom of first sealing member is located in the connecting pipe, and the bottom of pressing plate is provided with second sealing member in the position of water outlet, and the automatic water adding electric rice cooker is equipped with drive unit, first sealing member and second sealing member cooperation, to reach the preset time, drive first sealing member movement, and water tank and water chamber are communicated and fill water, and then drive second sealing member work and pour water, to complete the injection of water source, need not manual operation, and need not pour water in advance.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to an automatic water-adding rice cooker. Background Technology

[0002] An electric rice cooker is a modern cooking appliance that can perform various cooking methods such as steaming, boiling, stewing, simmering, and braising. An electric rice cooker generally consists of a pot body, heating element, temperature control, and timer. It can not only cook food but also keep it warm. It is clean and hygienic to use, pollution-free, time-saving, and labor-saving, making it an indispensable tool for modern household chores.

[0003] The timer function on rice cookers is very popular, with many users choosing to set it the night before so they can sleep in a little longer in the morning. However, because rice cookers don't automatically add water, you have to add water to the pot beforehand, causing the rice to soak for a long time. By the time the rice cooker starts cooking the next morning, the rice is often overly soft and mushy, severely affecting its original texture.

[0004] Furthermore, the process of adding water and rice manually is quite cumbersome, and it is difficult to control the amount of water added manually, which can easily lead to the rice being too dry or too wet, thus causing some adverse effects on users. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, the purpose of this utility model is to invent an automatic water-adding rice cooker that can automatically add water and adjust the amount of water added according to the weight of the rice to be cooked.

[0006] The present invention adopts the following technical solution: An automatic water-filling rice cooker includes, The pot body has an inner cavity with an opening at the top; The inner liner is located inside the inner cavity; A cover body, one end of which is rotatably mounted to the upper opening to be adapted to close the inner cavity, wherein an installation cavity is provided inside the cover body; The water filling assembly includes a water tank, a water chamber, a pressure plate, a first seal, a second seal, a drive rod, and a drive unit. The water tank and the drive unit are disposed within the mounting cavity. The top of the water tank has an inlet communicating with the outside. The water chamber is installed at the bottom of the cover. The top of the water chamber has a connecting pipe communicating with the water tank, and the bottom of the water chamber has a water outlet. The bottom of the first seal is placed inside the connecting pipe, and its top protrudes from the water tank and is connected to the drive end of the drive unit for transmission, so as to be suitable for sealing or opening under the drive of the drive unit. The connecting pipe is opened, the pressure plate is disposed in the water chamber, and the bottom end of the pressure plate is provided with the second sealing element corresponding to the position of the water outlet. The second sealing element includes a plug adapted to the water outlet and a rod connecting the plug and the pressure plate. The diameter of the rod is smaller than the diameter of the plug. The bottom end of the drive rod is fixedly connected to the top end of the pressure plate, and the top end is placed in the mounting cavity and drivenly connected to the drive unit, so as to drive the pressure plate downward or upward under the drive of the drive unit, so as to block or open the water outlet with the second sealing element. The control unit includes a control terminal and a gravity sensor. The gravity sensor is located at the bottom of the inner liner and is adapted to detect the weight of the inner liner. The control terminal is communicatively connected to the gravity sensor and the drive unit. The control terminal is adapted to control the drive unit to start or stop based on the weight information fed back by the weight detection unit.

[0007] Furthermore, the drive unit includes a drive motor, a cam, a slide rod, a connecting rod, and a drive plate. The slide rod is parallel to the first sealing element, and both ends of the slide rod are fixedly connected to the top and bottom walls of the mounting cavity, respectively. One end of the connecting rod is slidably connected to the slide rod, and the other end is connected to the top of the first sealing element. The drive plate is located below the connecting rod and is fixedly connected to the top of the driving rod. The cam is located between the connecting rod and the drive plate and abuts against the connecting rod and the drive plate. The drive end of the drive motor is fixedly connected to the cam, so that the drive motor can drive the first sealing element to move upward and the second sealing element to move downward through the cam.

[0008] Furthermore, it also includes an elastic element, which includes a first spring sleeved on the drive rod located outside one end of the mounting cavity and a second spring sleeved on the outside of the slide rod. The two ends of the first spring abut against the bottom wall of the mounting cavity and the bottom end of the drive plate, respectively, to provide an upward elastic force for the second seal. The bottom end of the second spring abuts against the connecting rod and the top end abuts against the top wall of the mounting cavity, to provide a downward elastic force for the first seal.

[0009] Furthermore, the water chamber is arranged in a hollow ring shape, and multiple water outlets are provided and evenly arranged at the bottom end of the water chamber.

[0010] Furthermore, the pressure plate is arranged in a ring shape to fit the water chamber, and the outer side of the pressure plate abuts against the inner wall of the water chamber. The pressure plate has a clearance hole corresponding to the position of the connecting pipe.

[0011] Furthermore, a sealing ring is installed inside the water outlet, and the sealing ring is adapted to seal the gap between the water outlet and the plug.

[0012] Furthermore, the bottom of the pot body is provided with a receiving cavity, the gravity sensor is installed in the receiving cavity, the top of the receiving cavity is provided with an opening, a weighing seat is provided in the opening, the weighing seat can slide relative to the opening, the top of the weighing seat abuts against the inner pot, and the bottom of the weighing seat is connected to the gravity sensor.

[0013] Furthermore, the inlet is fitted with a sealing plug.

[0014] Beneficial effects: This invention utilizes a drive unit, a first seal, and a second seal to work together. After a preset time, the drive unit moves the first seal to connect the water tank and the water chamber for water injection, and then drives the second seal to release water, thus completing the water injection into the inner pot without manual operation. Furthermore, it eliminates the need for pre-emptive water release to prevent the rice grains from swelling. Combined with a gravity sensor, the weight of the rice grains in the inner pot is measured and transmitted to a control terminal. The control terminal can then adjust the water addition based on the weight of the rice in the inner pot to prevent the cooked rice from being too mushy or too hard. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an automatic water-adding rice cooker according to the present invention; Figure 2 This is an internal structural diagram of the automatic water-adding rice cooker lid according to this utility model; Figure 3 This is a partial cross-sectional view of the lid of an automatic water-adding rice cooker according to this utility model; Figure 4 for Figure 3 Enlarged view at point A in the middle; Figure 5 This is a schematic diagram of the structure of an automatic water-adding component for a rice cooker according to the present invention; Figure 6 This is a schematic diagram of the structure of an automatic water-adding rice cooker water-adding component of the present invention, without the drive motor. Figure 7 for Figure 6Enlarged view at point B; Figure 8 This is a schematic diagram of the structure of an automatic water-adding rice cooker lid according to the present invention; Figure 9 for Figure 8 A magnified view at point C; Figure 10 This is a schematic diagram of the structure of the automatic water-adding rice cooker body and inner pot according to this utility model; Figure 11 This is a schematic diagram of the structure of the automatic water-adding rice cooker body according to this utility model.

[0016] Figure label: 10. Pot body; 101. Inner cavity; 102. Receiving cavity; 20. Inner pot; 30. Lid; 301. Mounting cavity; 40. Water filling assembly; 401. Water tank; 4011. Connecting pipe; 4012. Sealing plug; 402. Water chamber; 403. Pressure plate; 404. First sealing element; 405. Second sealing element; 4051. Rod body; 4052. Plug; 406. Drive rod; 407. Drive unit; 4071. Drive motor; 4072. Cam; 4073. Slide rod; 4074. Connecting rod; 4075. Drive plate; 501. Gravity sensor; 502. Weighing base; 601. First spring; 602. Second spring. Detailed Implementation

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] like Figure 1-11 As shown, an automatic water-adding rice cooker includes, The pot body 10 has an inner cavity 101 with an upper opening; The inner liner 20 is disposed within the inner cavity 101; The cover 30 is rotatably mounted at one end to the upper opening to close the inner cavity 101, and the cover 30 is provided with an installation cavity 301. The water filling assembly 40 includes a water tank 401, a water chamber 402, a pressure plate 403, a first seal 404, a second seal 405, a drive rod 406, and a drive unit 407. The water tank 401 and the drive unit 407 are disposed within the mounting cavity 301. The top of the water tank 401 has an inlet communicating with the outside. The water chamber 402 is installed at the bottom of the cover 30. A connecting pipe 4011 communicating with the water tank 401 is located at the top of the water chamber 402, and a water outlet is located at the bottom of the water chamber 402. The bottom of the first seal 404 is placed inside the connecting pipe 4011, and its top protrudes from the water tank 401 and is connected to the drive end of the drive unit 407 for transmission, so as to facilitate sealing under the drive of the drive unit 407. The connecting pipe 4011 is blocked or opened. The pressure plate 403 is disposed in the water chamber 402. The bottom end of the pressure plate 403 is provided with the second sealing element 405 corresponding to the position of the water outlet. The second sealing element 405 includes a plug 4052 adapted to the water outlet and a rod 4051 connecting the plug 4052 and the pressure plate 403. The diameter of the rod 4051 is smaller than the diameter of the plug 4052. The bottom end of the driving rod 406 is fixedly connected to the top end of the pressure plate 403, and the top end is placed in the mounting cavity 301 and is connected to the driving unit 407 for transmission, so as to drive the pressure plate 403 downward or upward under the drive of the driving unit 407, so that the second sealing element 405 blocks or opens the water outlet. The control unit includes a control terminal and a gravity sensor 501. The gravity sensor 501 is located at the bottom of the inner liner 20 and is adapted to detect the weight of the inner liner 20. The control terminal is communicatively connected to the gravity sensor 501 and the drive unit 407. The control terminal is adapted to control the drive unit 407 to start or stop based on the weight information fed back by the weight detection unit.

[0022] During use, after sufficient rice is added to the inner tank 20, the gravity sensor 501 senses the weight of the upper inner tank 20, allowing the control terminal to control the amount of water added based on the weight of the rice in the inner tank 20. Specifically, after a preset time is reached, the drive unit 407 drives the first seal 404 to move upward, thereby disengaging the first seal 404 from the connecting pipe 4011, allowing water in the water tank 401 to flow into the water chamber 402 through the connecting pipe 4011. Once the water chamber 402 is filled with sufficient water, the drive unit 407 drives the first seal 404 to move downward. The sealing element 404 is inserted into the connecting pipe 4011 to seal the connecting pipe 4011; then the drive unit 407 drives the pressure plate 403 to move downward through the drive rod 406, so as to drive the second sealing element 405 to move downward, that is, the plug 4052 moves downward and separates from the water outlet. At this time, the water in the water chamber 402 will flow into the inner tank 20 through the gap between the rod body 4051 and the water outlet to replenish the water in the inner tank 20. After the water replenishment is completed, the drive unit 407 drives the pressure plate 403 to move upward, and the second sealing element 405 moves upward, that is, the plug 4052 moves upward to block the water outlet.

[0023] This invention utilizes a drive unit 407, a first seal 404, and a second seal 405 to work together. After a preset time, the drive unit 407 drives the first seal 404 to connect the water tank 401 and the water chamber 402 for water injection. Then, the second seal 405 is driven to release water, thus completing the water injection into the inner pot 20 without manual operation or pre-draining to prevent the rice grains from swelling. Combined with a gravity sensor 501, the weight of the rice grains in the inner pot 20 can be measured and transmitted to the control terminal. The control terminal can then control the amount of water added based on the weight of the rice in the inner pot 20 to prevent the cooked rice from being too mushy or too hard.

[0024] In this embodiment, the control terminal integrates a time relay, thereby enabling time reservation.

[0025] Specifically, in this embodiment, the drive unit 407 includes a drive motor 4071, a cam 4072, a slide rod 4073, a connecting rod 4074, and a drive plate 4075. The slide rod 4073 is parallel to the first sealing member 404, and both ends of the slide rod 4073 are fixedly connected to the top wall and bottom wall of the mounting cavity 301, respectively. One end of the connecting rod 4074 is slidably connected to the slide rod 4073, and the other end is connected to the top end of the first sealing member 404. The drive plate 4075... 75 is located below the connecting rod 4074 and fixedly connected to the top end of the drive rod 406. The cam 4072 is located between the connecting rod 4074 and the drive plate 4075 and abuts against the connecting rod 4074 and the drive plate 4075. The drive end of the drive motor 4071 is fixedly connected to the cam 4072, so that the drive motor 4071 can drive the first seal 404 to move upward and the second seal 405 to move downward through the cam 4072.

[0026] It also includes elastic elements, which include a first spring 601 sleeved on the drive rod 406 located on the outside of one end of the mounting cavity 301 and a second spring 602 sleeved on the outside of the slide rod 4073. The two ends of the first spring 601 abut against the bottom wall of the mounting cavity 301 and the bottom end of the drive plate 4075, respectively, to provide an upward elastic force for the second seal 405. The bottom end of the second spring 602 abuts against the connecting rod 4074 and the top end abuts against the top wall of the mounting cavity 301, to provide a downward elastic force for the first seal 404.

[0027] During operation, the drive motor 4071 drives the cam 4072 to rotate, causing the protruding part of the cam 4072 to contact the connecting rod 4074 or the drive plate 4075, thereby driving the connecting rod 4074 to move upward or the drive plate 4075 to move downward. When the connecting rod 4074 moves upward under the drive of the cam 4072, it will drive the first seal 404 connected to it to move upward, thereby causing the first seal 404 to disengage from the connecting pipe 4011, connecting the water tank 401 and the water chamber 402. Water in the water tank 401 will flow into the water chamber 402 through the connecting pipe 4011. After a certain period of time, the drive motor 4071 drives the cam 4072 to continue rotating. At this time, the connecting rod 4074 will move downward under the action of gravity and the elastic force of the second spring 602, thereby re-inserting the first seal 404 into the connecting pipe 4011. The water tank 401 is separated from the water chamber 402. At the same time, the protrusion of the cam 4072 will drive the second seal 405 to move downward, that is, the plug 4052 moves downward. At this time, the rod 4051 is inside the water outlet. The diameter of the rod 4051 is smaller than the diameter of the water outlet, so a gap is formed between the rod 4051 and the water outlet. The water in the water chamber 402 will flow into the inner tank 20 through the gap for water addition. During this process, the weight sensor will detect the total weight of the inner tank 20. When the weight reaches a suitable range, the cam 4072 will continue to rotate through the drive motor 4071 so that the protrusion of the cam 4072 no longer abuts against the drive plate 4075. The drive plate 4075 will move upward under the elastic force of the first spring 601 to drive the second seal 405 to move upward, so that the plug 4052 is submerged in the water outlet to seal the water outlet.

[0028] In addition, to facilitate uniform water addition, in this embodiment, the water chamber 402 is arranged in a hollow ring shape, and multiple water outlet holes are provided and evenly arranged at the bottom end of the water chamber 402.

[0029] Meanwhile, in order to inject water quickly, the pressure plate 403 is arranged in a ring shape to fit the water chamber 402, and the outer side of the pressure plate 403 abuts against the inner wall of the water chamber 402. The pressure plate 403 is provided with a clearance hole corresponding to the position of the connecting pipe 4011. With this arrangement, when water is injected into the inner tank 20, the pressure plate 403 can squeeze the water in the water chamber 402, thereby quickly discharging the water in the water chamber 402.

[0030] Furthermore, to prevent water from flowing out through the gap between the plug 4052 and the outlet when water is injected into the water chamber 402, a sealing ring is installed inside the outlet in this embodiment. The sealing ring is suitable for sealing the gap between the outlet and the plug 4052.

[0031] Specifically, to facilitate the measurement of the weight of the inner pot 20 by the gravity sensor 501, in this embodiment, a receiving cavity 102 is provided at the bottom of the pot body 10, and the gravity sensor 501 is installed in the receiving cavity 102. An opening is provided at the top of the receiving cavity 102, and a weighing seat 502 is provided in the opening. The weighing seat 502 can slide relative to the opening. The top of the weighing seat 502 abuts against the inner pot 20, and the bottom of the weighing seat 502 is connected to the gravity sensor 501. With this arrangement, the inner pot 20 can be pressed against the gravity sensor 501 by the weighing seat 502, thereby enabling the measurement of the weight inside the inner pot 20.

[0032] In addition, foreign objects may enter the water tank 401, so in this embodiment, a sealing plug 4012 is installed at the inlet.

[0033] 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. An automatic water-adding rice cooker, characterized in that: include, The pot body has an inner cavity with an opening at the top; The inner liner is located inside the inner cavity; A cover body, one end of which is rotatably mounted to the upper opening to be adapted to close the inner cavity, wherein an installation cavity is provided inside the cover body; The water filling assembly includes a water tank, a water chamber, a pressure plate, a first seal, a second seal, a drive rod, and a drive unit. The water tank and the drive unit are disposed within the mounting cavity. The top of the water tank has an inlet communicating with the outside. The water chamber is installed at the bottom of the cover. The top of the water chamber has a connecting pipe communicating with the water tank, and the bottom of the water chamber has a water outlet. The bottom of the first seal is placed inside the connecting pipe, and its top protrudes from the water tank and is connected to the drive end of the drive unit for transmission, so as to be suitable for sealing or opening under the drive of the drive unit. The connecting pipe is opened, the pressure plate is disposed in the water chamber, and the bottom end of the pressure plate is provided with the second sealing element corresponding to the position of the water outlet. The second sealing element includes a plug adapted to the water outlet and a rod connecting the plug and the pressure plate. The diameter of the rod is smaller than the diameter of the plug. The bottom end of the drive rod is fixedly connected to the top end of the pressure plate, and the top end is placed in the mounting cavity and drivenly connected to the drive unit, so as to drive the pressure plate downward or upward under the drive of the drive unit, so as to block or open the water outlet with the second sealing element. The control unit includes a control terminal and a gravity sensor. The gravity sensor is located at the bottom of the inner liner and is adapted to detect the weight of the inner liner. The control terminal is communicatively connected to the gravity sensor and the drive unit. The control terminal is adapted to control the drive unit to start or stop based on the weight information fed back by the weight detection unit.

2. The automatic water-adding rice cooker according to claim 1, characterized in that: The drive unit includes a drive motor, a cam, a slide rod, a connecting rod, and a drive plate. The slide rod is parallel to the first sealing element, and its two ends are fixedly connected to the top and bottom walls of the mounting cavity, respectively. One end of the connecting rod is slidably connected to the slide rod, and the other end is connected to the top of the first sealing element. The drive plate is located below the connecting rod and is fixedly connected to the top of the driving rod. The cam is located between the connecting rod and the drive plate and abuts against the connecting rod and the drive plate. The drive end of the drive motor is fixedly connected to the cam, so that the drive motor can drive the first sealing element to move upward and the second sealing element to move downward through the cam.

3. The automatic water-adding rice cooker according to claim 2, characterized in that: It also includes an elastic element, which includes a first spring sleeved on the outside of one end of the drive rod located in the mounting cavity and a second spring sleeved on the outside of the slide rod. The two ends of the first spring abut against the bottom wall of the mounting cavity and the bottom end of the drive plate, respectively, to provide an upward elastic force for the second seal. The bottom end of the second spring abuts against the connecting rod and the top end abuts against the top wall of the mounting cavity, to provide a downward elastic force for the first seal.

4. The automatic water-adding rice cooker according to claim 1, characterized in that: The water chamber is arranged in a hollow ring shape, and there are multiple water outlets, which are evenly arranged at the bottom of the water chamber.

5. The automatic water-adding rice cooker according to claim 4, characterized in that: The pressure plate is arranged in a ring shape to fit the water chamber, and the outer side of the pressure plate abuts against the inner wall of the water chamber. The pressure plate has a clearance hole corresponding to the position of the connecting pipe.

6. The automatic water-adding rice cooker according to claim 1, characterized in that: A sealing ring is installed inside the water outlet, and the sealing ring is suitable for sealing the gap between the water outlet and the plug.

7. The automatic water-adding rice cooker according to claim 1, characterized in that: The bottom of the pot body is provided with a receiving cavity, the gravity sensor is installed in the receiving cavity, the top of the receiving cavity is provided with an opening, a weighing seat is provided in the opening, the weighing seat can slide relative to the opening, the top of the weighing seat abuts against the inner pot, and the bottom of the weighing seat is connected to the gravity sensor.

8. The automatic water-adding rice cooker according to claim 1, characterized in that: The inlet is fitted with a sealing plug.

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