Stirring shovel and pot cover

By installing a movable temperature probe on the stirring spatula, the problem of inaccurate temperature detection caused by the fixed position of the sensor in the existing technology is solved, and real-time temperature adjustment based on changes in the ingredients is realized, thereby improving the cooking effect and food quality.

CN224155526UActive Publication Date: 2026-04-24HANGZHOU ROBAM APPLIANCES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU ROBAM APPLIANCES CO LTD
Filing Date
2025-05-29
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing temperature detection methods cannot adjust the sensor position according to the state, size, shape, and type of food, resulting in inaccurate temperature detection.

Method used

A stirring spatula including a rotating shaft and a temperature measuring mechanism was designed. The temperature measuring probe is located inside the rotating shaft and moves along the length of the rotating shaft through a drive mechanism to adapt to the deformation and temperature distribution of different ingredients, thereby realizing the vertical position adjustment of the temperature measuring probe.

Benefits of technology

It improves the accuracy of temperature detection and cooking results by automatically adjusting the cooking mode through real-time monitoring of the food temperature inside the pot, ensuring the uniformity and taste of the food.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a stirring shovel and a pot cover, and relates to the technical field of kitchen appliances, the stirring shovel provided by the utility model comprises a rotating shaft and a temperature measuring mechanism, the rotating shaft is connected with stirring blades; the temperature measuring mechanism comprises a temperature measuring probe, and the temperature measuring probe is located in an inner channel of the rotating shaft and can move relative to the rotating shaft in the length direction of the rotating shaft so that the vertical position of the temperature measuring probe in the pot body can be changed.
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Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a pot lid and a pot lid. Background Technology

[0002] The automated cooking wok uses an intelligent control system to simulate the cooking process of manual stir-frying. Temperatures that are too high or too low can affect the cooking results. Therefore, the accuracy and stability of the temperature sensor are crucial to the performance of the automated cooking wok.

[0003] Existing technological solutions: Current temperature detection methods mainly rely on installing fixed temperature sensors inside the pot. However, the position of the sensors cannot be adjusted according to the state, size, shape, and type of food, resulting in inaccurate temperature detection. Utility Model Content

[0004] The purpose of this invention is to provide a stirring spatula and a pot lid to alleviate the technical problem that existing temperature detection mechanisms cannot adjust the detection position according to the food in the pot, resulting in inaccurate detection data.

[0005] In a first aspect, the present invention provides a stirring shovel, comprising: a rotating shaft and a temperature measuring mechanism, wherein a stirring blade is connected to the rotating shaft;

[0006] The temperature measuring mechanism includes a temperature measuring probe, which is located in the internal channel of the rotating shaft and can move relative to the rotating shaft along its length direction to change the vertical position of the temperature measuring probe inside the pot.

[0007] Furthermore, the temperature measuring mechanism also includes a driving mechanism, which drives the temperature measuring probe to move along the length direction of the rotating shaft.

[0008] Furthermore, the driving mechanism includes a telescopic rod and a driving module. The temperature probe is connected to the bottom end of the telescopic rod, and the driving module is connected to the telescopic rod. The driving module is used to drive the telescopic rod to extend and retract, so that the temperature probe changes its vertical position.

[0009] Furthermore, the telescopic rod includes at least two sleeves that are sequentially sleeved in the inward and outward directions and can slide relative to each other, and the outer wall of the sleeve has a rack structure extending along its length.

[0010] The temperature measuring mechanism includes a guide sleeve, and the telescopic rod is located inside the guide sleeve, with the two arranged in parallel. The drive module includes a first gear and a drive module. The first gear has concentric shafts on both sides, and the shafts are slidably connected to the guide sleeve along the radial direction of the sleeve.

[0011] The drive module is used to make the first gear abut and mesh with the sleeve, and to drive the first gear to rotate.

[0012] Furthermore, the drive module includes a motor, a shaft tube, a shaft body, a spring, and a second gear. The output shaft of the motor is connected to one end of the shaft tube, and one end of the shaft body is slidably connected to the inner side of the other end of the shaft tube. The shaft body can slide along the length direction of the shaft tube, and the shaft body cannot rotate relative to the shaft tube. The other end of the shaft body is connected to the second gear.

[0013] The spring is disposed inside the shaft tube and abuts against the shaft body, and is used to drive the shaft body to move away from the motor so that the second gear abuts against and meshes with the first gear.

[0014] Furthermore, a groove extending along the length direction is provided on the outer wall of the shaft tube;

[0015] The outer wall of the shaft is provided with an outwardly protruding protrusion, which is slidably connected in the groove to prevent the shaft from rotating relative to the shaft tube.

[0016] Furthermore, both the first gear and the second gear are bevel gears.

[0017] Furthermore, a first magnetic ring is provided at the top of the guide sleeve; the first gear is located below the first magnetic ring;

[0018] The sleeve is made of ferromagnetic material, or each sleeve has a second magnetic ring at its top that attracts the first magnetic ring.

[0019] Furthermore, the temperature measuring mechanism also includes a temperature measuring chip, which is electrically connected to the temperature measuring probe and to the control chip of the cooking device, so that the control chip can issue different cooking modes according to the temperature detected by the temperature measuring probe.

[0020] Secondly, the present invention provides a pot lid, including the aforementioned stirring spatula.

[0021] This utility model has at least the following advantages or beneficial effects:

[0022] The stirring spatula provided by this utility model includes: a rotating shaft and a temperature measuring mechanism. The rotating shaft is connected to a stirring blade. The temperature measuring mechanism includes a temperature measuring probe, which is located in the internal channel of the rotating shaft and can move relative to the rotating shaft along the length direction of the rotating shaft, so as to change the vertical position of the temperature measuring probe in the pot.

[0023] Different types of ingredients undergo deformation during cooking. For example, meat changes little in volume before and after cooking, while vegetables change significantly. Liquid and non-liquid foods also exhibit varying temperature uniformity across different parts of the pot during cooking. As the rotating shaft drives the stirring blades to agitate the ingredients, a temperature probe collects temperature data. The position of the temperature probe affects the accuracy of the results; therefore, the vertical position of the temperature probe, located within the rotating shaft, can be adjusted to suit different cooking scenarios.

[0024] The pot lid provided by this utility model includes the aforementioned stirring spatula. Because the cooking device provided by this utility model incorporates the aforementioned stirring spatula, the pot lid provided by this utility model also possesses the advantages of a pot lid. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A cross-sectional view of the pot lid provided in an embodiment of this utility model;

[0027] Figure 2 A schematic diagram of the temperature measuring mechanism of the stirring shovel provided in an embodiment of this utility model;

[0028] Figure 3 for Figure 2 A magnified view of a portion of position A in the middle;

[0029] Figure 4 A cross-sectional view of the stirring shovel at the position of the first gear in an embodiment of this utility model;

[0030] Figure 5 A schematic diagram of the interior of the outer shell of the stirring spatula provided in an embodiment of this utility model;

[0031] Figure 6 A schematic diagram of the drive module of the stirring shovel provided in an embodiment of this utility model.

[0032] Icons: 1 - Outer casing; 2 - Telescopic rod; 21 - Sleeve; 3 - Temperature probe;

[0033] 41 – First gear; 411 – Shaft; 42 – Motor; 43 – Shaft tube; 44 – Shaft body; 45 – Spring; 46 – Second gear;

[0034] 5 – Guide sleeve; 51 – First magnetic ring;

[0035] 6 – Cover; 7 – Rotating shaft. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] like Figure 1 - Figure 6 As shown, the stirring spatula provided by this utility model can be connected to the lid 6 to form a pot lid. The stirring spatula includes a rotating shaft and a temperature measuring mechanism.

[0043] The temperature measuring mechanism includes a temperature probe located within the internal channel of the rotating shaft and capable of moving relative to the shaft along its length, thereby changing the vertical position of the temperature probe within the pot. Users can manually adjust the vertical position of the temperature probe, or the vertical position can be automatically adjusted via a drive mechanism mounted on the stirring spatula.

[0044] The temperature measuring mechanism specifically includes a housing 1 and a drive mechanism, wherein the drive mechanism specifically includes a telescopic rod 2 and a drive module. Both the temperature probe 3 and the drive module are connected to the telescopic rod 2. The drive module is used to drive the telescopic rod 2 to extend and retract, thereby changing the vertical position of the temperature probe 3. The extension and retraction direction of the telescopic rod 2 can be set vertically. To prevent contamination of the telescopic rod 2, it is placed inside the rotating shaft 7 of the stirring spatula. The temperature probe 3 obtains the temperature of the food inside the pot by detecting the temperature of the rotating shaft 7.

[0045] In addition to the drive structure described above, the drive mechanism can also be other linear drive modules, such as electric actuators.

[0046] The drive mechanism can be fixedly connected inside the housing 1. The housing 1 has a through hole extending through its interior and exterior. The telescopic rod 2 can pass through the through hole under the drive of the drive mechanism. The housing 1 includes an upper shell and a bottom cover, and the through hole is located on the bottom cover.

[0047] Different types of ingredients undergo deformation during cooking. For example, meat changes little in volume before and after cooking, while vegetables change significantly. Liquid and non-liquid foods also exhibit varying temperature uniformity across different parts of the pot during cooking. The position of the temperature probe 3 affects the accuracy of the detection results. Therefore, initial data collection via user input is necessary. The drive mechanism, through the telescopic rod 2, initially positions the temperature probe 3 in a suitable location, accurately monitoring the temperature of the food inside the pot in real time and feeding this data back to the control system, thus influencing the cooking process and achieving the desired cooking effect.

[0048] Specifically, the telescopic rod 2 includes at least two sleeves 21 that are sequentially sleeved along the inner and outer directions and can slide relative to each other. The sleeves 21 can slide relative to each other along their length direction, thereby changing their length. The outer wall of the sleeve 21 has a rack structure extending along its length direction.

[0049] The temperature measuring mechanism includes a guide sleeve 5, with an opening at the lower end. The upper end of the telescopic rod 2 is connected inside the guide sleeve 5, and the two are arranged parallel to each other. The guide sleeve 5 can guide and limit the telescopic rod 2, preventing it from tilting. A limiting structure, such as a stop, is also provided to prevent the last section of the telescopic rod 2, i.e., the thickest section, from completely sliding out of the guide sleeve 5.

[0050] like Figure 3 and Figure 6 As shown, the drive module includes a first gear 41, a motor 42, a shaft tube 43, a shaft body 44, a spring 45, and a second gear 46. The motor 42 can be fixedly connected to the inner wall of the housing 1, for example, by screws. The output shaft of the motor 42 is concentrically connected to one end of the shaft tube 43. One end of the shaft body 44 is slidably connected to the inner side of the other end of the shaft tube 43. The shaft body 44 can slide along the length of the shaft tube 43, but cannot rotate relative to the shaft tube 43, so that the overall length of the shaft tube 43 and the shaft body 44 is variable. The first gear 41 has concentric shafts 411 on both sides, and the shafts 411 are slidably connected to the guide sleeve 5 along the radial direction of the sleeve 21. The spring 45 is located inside the shaft tube 43 and abuts against the shaft body 44, driving the shaft body 44 to move away from the motor 42. The other end of the shaft body 44 is connected to the second gear 46. Under the action of the spring 45, the second gear 46 abuts against and meshes with the first gear 41.

[0051] After the motor 42 is started, the output shaft, shaft tube 43, shaft body 44 and the second gear 46 of the motor 42 have the same rotation state, thereby driving the first gear 41 to rotate, so as to drive the sleeve 21 meshing with the first gear 41 to move vertically. When the first gear 41 meshes with the next section of sleeve 21, under the action of the spring 45 (the spring 45 is compressed or the spring 45 is stretched), the second gear 46 moves toward or away from the first gear 41. The first gear 41 can always mesh with the sleeve 21, thereby completing the telescopic movement of the telescopic rod 2, and the telescopic rod 2 occupies less vertical space.

[0052] The outer wall of the shaft tube 43 is provided with a sliding groove extending along its length; the outer wall of the shaft body 44 is provided with an outwardly protruding protrusion, which is slidably connected in the sliding groove to prevent the shaft body 44 from rotating relative to the shaft tube 43.

[0053] There can be two slide grooves, located on opposite sides of the shaft 44. Correspondingly, two protrusions are provided on the opposite side walls of the shaft 44, which are slidably connected in the slide grooves. The protrusions can only slide along the slide grooves along the length of the shaft tube 43, and cannot rotate.

[0054] In other possible solutions, the inner wall cross-section of the shaft tube 43 can be set to be non-circular, such as rectangular. Similarly, the cross-section of the shaft body 44 can also be set to rectangular, thereby avoiding relative rotation.

[0055] Both the first gear 41 and the second gear 46 can be bevel gears.

[0056] like Figure 5 As shown, a first magnetic ring 51 is provided on the top of the guide sleeve 5; a first gear 41 is located below the first magnetic ring 51; the sleeve 21 is made of ferromagnetic material, or, the top of each sleeve 21 is provided with a second magnetic ring that attracts the first magnetic ring 51.

[0057] When the telescopic rod 2 is in its shortest state, the top of each sleeve 21 is attracted by the first magnetic ring 51. Only the sleeve 21 that meshes with the first gear 41 can be driven to move up and down. When the telescopic rod 2 is to be extended, the current sleeve 21 is separated from the first gear 41, and the next sleeve 21 meshes with the first gear 41 and moves down.

[0058] The temperature measuring mechanism also includes a temperature measuring chip, which is electrically connected to the temperature probe 3 and the control chip of the cooking equipment. This allows the control chip to issue different cooking modes based on the temperature detected by the temperature probe 3. The probe can feed back the measured temperature information to the control system in real time, enabling real-time control of temperature changes during cooking. In practice, wireless communication technologies such as Wi-Fi or Bluetooth can be used to achieve real-time transmission of temperature information. The control system can automatically adjust the heating power and stirring frequency of the wok based on the temperature information fed back by the temperature probe, thereby achieving uniform cooking and improved taste. Specifically, a PID control algorithm is used to adjust the stirring frequency and duration based on the magnitude of the temperature deviation.

[0059] The main body of the mixing spatula is made of high-hardness steel. The spatula part is designed with double-layer silicone material. The outer layer is high-temperature resistant food-grade silicone, and the inner layer is thermally conductive silicone. When food comes into contact with the mixing spatula, it can quickly conduct heat to the temperature probe 3 inside the mixing spatula.

[0060] The telescopic rod 2 is made of stainless steel with good thermal conductivity, and the temperature probe 3 is fixed at the end of the sleeve 21.

[0061] Temperature probe 3 uses a high-temperature resistant resistive temperature sensor (NTC), which provides more accurate temperature measurement. During automatic cooking, the NTC inputs the continuously changing analog (voltage) signal to the ADC module of the main control chip, converting it into a recognizable digital signal.

[0062] The pot lid provided by this utility model includes the aforementioned stirring spatula. Because the pot lid provided by this utility model incorporates the aforementioned stirring spatula, it also possesses the advantages of a stirring spatula.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stirring spatula, characterized in that, include: A rotating shaft and a temperature measuring mechanism, wherein a stirring blade is connected to the rotating shaft; The temperature measuring mechanism includes a temperature measuring probe, which is located in the internal channel of the rotating shaft and can move relative to the rotating shaft along its length direction to change the vertical position of the temperature measuring probe inside the pot.

2. The stirring spatula according to claim 1, characterized in that, The temperature measuring mechanism also includes a driving mechanism, which drives the temperature measuring probe to move along the length of the rotating shaft.

3. The stirring spatula according to claim 2, characterized in that, The driving mechanism includes a telescopic rod (2) and a driving module. The temperature probe (3) is connected to the bottom end of the telescopic rod (2). The driving module is connected to the telescopic rod (2). The driving module is used to drive the telescopic rod (2) to extend and retract so that the temperature probe (3) changes its vertical position.

4. The stirring spatula according to claim 3, characterized in that, The telescopic rod (2) includes at least two sleeves (21) that are sequentially sleeved in the inner and outer directions and can slide relative to each other. The outer wall of the sleeve (21) has a rack structure extending along its length. The temperature measuring mechanism includes a guide sleeve (5), and the telescopic rod (2) is located inside the guide sleeve (5) and the two are arranged in parallel; the drive module includes a first gear (41) and a drive module, and the first gear (41) is provided with shafts (411) concentric with it on both sides, and the shafts (411) and the guide sleeve (5) are slidably connected along the radial direction of the sleeve (21); The drive module is used to abut and mesh the first gear (41) with the sleeve (21) and to drive the first gear (41) to rotate.

5. The stirring spatula according to claim 4, characterized in that, The drive module includes a motor (42), a shaft tube (43), a shaft body (44), a spring (45), and a second gear (46). The output shaft of the motor (42) is connected to one end of the shaft tube (43), and one end of the shaft body (44) is slidably connected to the inner side of the other end of the shaft tube (43). The shaft body (44) can slide along the length direction of the shaft tube (43), and the shaft body (44) cannot rotate relative to the shaft tube (43). The other end of the shaft body (44) is connected to the second gear (46). The spring (45) is disposed inside the shaft tube (43) and abuts against the shaft body (44) to drive the shaft body (44) to move away from the motor (42) so that the second gear (46) abuts against and meshes with the first gear (41).

6. The stirring spatula according to claim 5, characterized in that, The outer wall of the shaft tube (43) is provided with a sliding groove extending along its length direction; The outer wall of the shaft (44) is provided with an outward protrusion, which is slidably connected in the groove to prevent the shaft (44) from rotating relative to the shaft tube (43).

7. The stirring spatula according to claim 5, characterized in that, Both the first gear (41) and the second gear (46) are bevel gears.

8. The stirring spatula according to claim 4, characterized in that, The top of the guide sleeve (5) is provided with a first magnetic ring (51); the first gear (41) is located below the first magnetic ring (51); The sleeve (21) is made of ferromagnetic material, or each sleeve (21) has a second magnetic ring at its top end that attracts the first magnetic ring (51).

9. The stirring spatula according to claim 1, characterized in that, The temperature measuring mechanism also includes a temperature measuring chip, which is electrically connected to the temperature measuring probe (3) and to the control chip of the cooking equipment, so that the control chip issues different cooking modes according to the temperature detected by the temperature measuring probe (3).

10. A pot lid, characterized in that, Includes the stirring spatula as described in any one of claims 1-9.