Lever weighing pot

Abstract

The invention relates to the technical field of kitchen utensils and intelligent health management, in particular to a lever weighing pot. The invention provides a lever weighing pot. According to the technical scheme, the lever weighing pot comprises a pot body; the lever weighing panhandle comprises a panhandle shell, a three-stage lever mechanism and a strain gauge sensor, the three-stage lever mechanism and the strain gauge sensor are arranged in the panhandle shell, the rear end of the three-stage lever mechanism is hinged to the panhandle shell through a rotating hinge, and the front end of the three-stage lever mechanism extends out of the panhandle shell to be connected with a pan body; the three-stage lever mechanism is provided with an elastic heat insulation force transmission piece, and when the three-stage lever mechanism is stressed, pressure is transmitted to the strain gauge sensor through the elastic heat insulation force transmission piece. The scheme has the advantages that the weighing precision is kept in a high-temperature environment, lateral stress interference is reduced, and real-time weighing and nutrition management in the cooking process are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen utensils and intelligent health management, and particularly relates to a lever weighing pot. BACKGROUND

[0002] For people who pursue healthy diet management, especially for people who exercise and reduce fat, it is very important to weigh food materials in real time and accurately during cooking and to calculate calorie intake. However, the existing kitchen weighing method has significant deficiencies. The traditional scheme usually requires the user to take the food material out of the cooking utensil, transfer it to an independent electronic scale for weighing, and manually record the data, which not only interrupts the cooking process and reduces efficiency, but also easily leads to recording errors or omissions. More importantly, the weight data obtained is separated from the nutritional information (such as calories, protein, etc.) of the food material, and the user needs to take additional steps to query and convert, making it difficult to achieve instant and coherent calorie control during cooking, greatly affecting the effectiveness and experience of health management.

[0003] For integrated cooking utensils with weighing functions, although there are many attempts in the prior art, there are still many technical bottlenecks. First, the high-temperature environment poses a serious challenge to the built-in weighing sensor. The high temperature generated by the pot during cooking will be conducted to the sensor through the structural member, causing the measured data to drift significantly. Although some schemes attempt to add a heat insulation layer or a temperature compensation algorithm, the structure is often complex and the cost is high, or the effect is limited under extreme high temperature. Second, the shaking of the pot during cooking, the change in the force of the user holding the handle, and the inevitable slight tilt of the pot will introduce additional lateral stress or change the direction of the force of gravity, interfere with the force transmission path of the weighing mechanism, and cause the measurement accuracy to decrease and the result to be unstable. Third, the existing integrated scheme is often limited to basic weighing in terms of function, lacks deep integration with the user's health management needs, and cannot conveniently achieve food material recognition, nutrition calculation, and long-term data tracking analysis.

[0004] In view of the above problems, the prior art needs to be improved. SUMMARY

[0005] In order to solve the above problems, the purpose of the present application is to provide a lever weighing pot, which has the advantages of maintaining weighing accuracy in a high-temperature environment, reducing lateral stress interference, and realizing real-time weighing and nutrition management during cooking.

[0006] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0007] The present application provides a lever weighing pot, and the technical solutions are as follows:

[0008] A pot body;

[0009] The lever weighing pot handle comprises a pot handle shell, a three-stage lever mechanism and a strain gauge sensor arranged in the pot handle shell, the rear end of the three-stage lever mechanism is hinged to the pot handle shell through a rotary hinge, and the front end of the three-stage lever mechanism extends out of the pot handle shell and is connected to a pot body.

[0010] The three-stage lever mechanism is provided with an elastic heat insulation force transmission member, and when the three-stage lever mechanism is stressed, the elastic heat insulation force transmission member transmits the pressure to the strain gauge sensor.

[0011] The technical scheme realizes the in-situ weighing function in a high-temperature cooking environment through structural innovation. The pot body serves as a food material bearing main body, and the gravity of the pot body is transmitted to the measuring system through the lever weighing pot handle. The three-stage lever mechanism adopts a hinged design, the rear end of the three-stage lever mechanism is hinged to the pot handle shell through a rotary hinge to form a fulcrum, and the front end of the three-stage lever mechanism is connected to the pot body to form a lever action, so that the gravity of the pot body is reduced in proportion and then transmitted to the strain gauge sensor, thereby ensuring the measurement sensitivity and avoiding overloading of the sensor. The elastic heat insulation force transmission member serves as a key intermediate component, which on the one hand absorbs mechanical vibration and lateral stress interference through elastic deformation to ensure linear transmission of force, and on the other hand blocks the heat conduction from the pot body to the strain gauge sensor through the heat insulation material to solve the measurement error caused by temperature drift in the traditional scheme. The cooperative design of the three-stage lever mechanism and the elastic heat insulation force transmission member enables the sensor to be placed in the handle away from the high-temperature area while maintaining an accurate force transmission path, thereby realizing the dual optimization of mechanical conduction and thermal insulation in the limited handle space.

[0012] Further, the three-stage lever mechanism comprises a rigid load-bearing arm, the front end of the rigid load-bearing arm is connected to a hanging point of the pot body, and the rear end of the rigid load-bearing arm is hinged to the pot handle shell through a rotary hinge; the rigid load-bearing arm between the elastic heat insulation force transmission member and the rotary hinge is integrally stamped into a trapezoidal structure with an opening facing upward, and the opening of the trapezoidal structure forms an internal mounting space. The technical scheme realizes the dual goals of force transmission path optimization and functional module integration through the combined design of the rigid load-bearing arm and the trapezoidal structure. The structure that the front end of the rigid load-bearing arm is connected to the hanging point of the pot body and the rear end of the rigid load-bearing arm is fixed through the rotary hinge ensures that the gravity is transmitted to the lever mechanism along a single axis, thereby avoiding the lateral force interference caused by the shaking or tilting of the pot body to affect the measurement accuracy. The rigid load-bearing arm between the elastic heat insulation force transmission member and the rotary hinge adopts a trapezoidal stamping structure with an opening facing upward, the geometric characteristics of which not only enhance the bending stiffness of the load-bearing arm, but also provide a physical isolation area for the installation of controllers, sensors and other components through the internal space formed by the opening. The opening design of the trapezoidal structure not only effectively blocks the direct conduction path of the high temperature of the pot body to the internal electronic components, but also reduces the influence of mechanical deformation on the sensor measurement reference through the structural rigidity, thereby meeting the mechanical performance and thermal protection requirements in the limited handle space.

[0013] Further, the application also proposes that the mounting space of the trapezoidal structure is provided with a controller and a display screen; the controller is connected with the strain gauge sensor, and a control end thereof is arranged outside the pot handle and includes a peeling key and a memory key; and the display screen is connected with the strain gauge sensor and is used for displaying current weighing data and historical weighing records in real time. The technical scheme integrates the structure and the function, and the controller and the display screen are arranged in the mounting space of the trapezoidal structure of the rigid load-bearing arm, so that the space characteristics of the lever mechanism are fully utilized, and the external space of the pot body or the handle is avoided to be additionally occupied. The controller is directly connected with the strain gauge sensor, can process the weighing signal in real time and execute instructions such as peeling and data storage, and the peeling key and the memory key arranged outside the control end are convenient for one-handed operation of the user, so that the data zeroing or the historical record calling can be completed without interrupting the cooking process. The display screen is linked with the sensor, the dynamic weighing data is visualized, and the historical record is displayed, so that the problem of low efficiency caused by the transfer of the food material weighing and manual recording in the traditional method is solved. Through the instant processing and storage of the data by the controller and the double information presentation of the display screen, the user can directly obtain the current weight and the past data comparison in the cooking process, so that a coherent health management link is formed.

[0014] Further, the application also proposes that the mounting space of the trapezoidal structure is provided with a controller and a display screen; the controller is connected with the strain gauge sensor, and a control end thereof is arranged outside the pot handle and includes a peeling key and a memory key; and the display screen is connected with the strain gauge sensor and is used for displaying current weighing data and historical weighing records in real time. The technical scheme integrates the structure and the function, and the controller and the display screen are arranged in the mounting space of the trapezoidal structure of the rigid load-bearing arm, so that the space characteristics of the lever mechanism are fully utilized, and the external space of the pot body or the handle is avoided to be additionally occupied. The controller is directly connected with the strain gauge sensor, can process the weighing signal in real time and execute instructions such as peeling and data storage, and the peeling key and the memory key arranged outside the control end are convenient for one-handed operation of the user, so that the data zeroing or the historical record calling can be completed without interrupting the cooking process. The display screen is linked with the sensor, the dynamic weighing data is visualized, and the historical record is displayed, so that the problem of low efficiency caused by the transfer of the food material weighing and manual recording in the traditional method is solved. Through the instant processing and storage of the data by the controller and the double information presentation of the display screen, the user can directly obtain the current weight and the past data comparison in the cooking process, so that a coherent health management link is formed.

[0015] The biaxial tilt sensor is integrated in the mounting space of the trapezoidal structure, and is fixedly connected with the pot handle shell through a cantilever beam isolation support;

[0016] The biaxial tilt sensor detects the tilt angle of the pot body and transmits the tilt angle to the controller for weight compensation.

[0017] The technical scheme solves the interference of the tilt of the pot body on the weighing accuracy in the cooking process by combining the structure integration and the dynamic compensation. Firstly, the biaxial tilt sensor is integrated in the mounting space of the trapezoidal structure of the three-stage lever mechanism, so that the structural characteristics of the rigid load-bearing arm are fully utilized, the space redundancy caused by the separate arrangement of the sensor is avoided, and the stability of the sensor installation is ensured by the rigid support of the trapezoidal structure. Secondly, the biaxial tilt sensor is fixedly connected with the pot handle shell through the cantilever beam isolation support, so that the mechanical vibration and the lateral stress generated when the pot handle is held can be effectively isolated, and the sensor and the pot body can be kept synchronous, so that the change of the tilt angle can be accurately captured. Finally, the biaxial tilt sensor detects the tilt angle of the pot body in the three-dimensional space in real time, transmits the angle data to the controller in real time, and performs dynamic weight compensation calculation combined with the preset mechanical model, so that the force decomposition error caused by the non-vertical state is eliminated, and the accuracy of the weighing data is double guaranteed in the physical layer and the algorithm layer.

[0018] Further, the application also proposes that the side wall of the pot body is provided with a connecting base; the front end of the rigid load-bearing arm is fixedly connected with a clamping block, which is connected with the connecting base; the connecting base and the inner end of the lever weighing pot handle are in a non-contact state, and only the gravity is transmitted through the rigid load-bearing arm. The technical scheme optimizes the connection structure of the pot body and the handle, realizes the singleization of the gravity transmission path and the effective isolation of heat conduction. The connecting base is arranged on the side wall of the pot body to provide a stable force transmission anchor point for the rigid load-bearing arm, so as to avoid stress dispersion caused by multi-point contact. The clamping block fixedly connected with the front end of the rigid load-bearing arm is in rigid connection with the connecting base, so as to ensure that the gravity is directly transmitted along the predetermined path to the lever mechanism and eliminate the deformation error caused by flexible connection. The design that the connecting base and the inner end of the pot handle are in a non-contact state cuts off the heat conduction path other than the rigid load-bearing arm, which not only prevents high temperature from being conducted to the sensor area through the metal contact surface, but also avoids the generation of lateral stress interference caused by accidental contact of the pot handle shell. The structure design ensures the accuracy of mechanical transmission while realizing the physical level heat isolation, and solves the technical problem of structure heat conduction and mechanical interference coupling in the traditional scheme

[0019] Further, the application also proposes that the clamping block is a heat insulation block made of ceramic or composite silica gel material, which completely wraps the fixed connection area of the front end of the rigid load-bearing arm and the connecting base, so as to form a physical isolation layer between the connecting base and the rigid load-bearing arm. The technical scheme combines specific material and structure parameters to build an effective heat resistance barrier at the connection between the rigid load-bearing arm and the pot body. The selection of ceramic or composite silica gel material is based on its low thermal conductivity coefficient (the thermal conductivity coefficient of ceramic is about 1.5 W / m·K, and the thermal conductivity coefficient of composite silica gel is about 0.2 W / m·K), which can block the heat conduction path from the pot body to the rigid load-bearing arm. The heat insulation block completely wraps the fixed connection area of the front end of the rigid load-bearing arm and the connecting base, so as to form a physical isolation layer between the connecting base and the rigid load-bearing arm. The heat insulation block forms the first heat insulation barrier through physical isolation and material heat resistance, controls the working environment temperature of the sensor below the working threshold, and avoids the temperature drift of the sensor caused by high heat conduction of the traditional metal connecting piece.

[0020] Further, the application also proposes that the rigid load-bearing arm is a 304 stainless steel strip with a thickness of 2-3 mm.

[0021] Further, the application also proposes that it further comprises:

[0022] The Bluetooth module is arranged in the pot handle shell and is connected with the controller and the mobile terminal APP.

[0023] The APP realizes the following functions:

[0024] The dynamic matching food material database automatically calculates the protein / carbohydrate / fat content according to the weight and the food material type;

[0025] When the dual-axis tilt sensor detects a tilt angle > 15°, a tilt warning prompt is triggered;

[0026] The cloud analyzes historical data to generate a heat intake trend chart and correlate the user's fitness plan.

[0027] The technical solution establishes a bidirectional data channel between the hardware and the mobile terminal through the Bluetooth module, forming a complete intelligent health management closed loop. The Bluetooth module is arranged in the pot handle shell, which utilizes its low-power consumption characteristics to adapt to the space limitation of the handle, and avoids damage to the data line caused by high temperature through wireless transmission, ensuring real-time communication between the controller and the mobile terminal APP. The mobile terminal APP dynamically matches the food material database to combine the weighing data with the food material type, breaking through the limitation of traditional weighing appliances that can only display weight, realizing automatic conversion of nutrients such as protein, carbohydrates, and fats, and solving the cumbersome problem of manual query of the nutrition table. An early warning threshold of a tilt angle > 15° is set, based on research data on the natural tilt angle range of the pot body during cooking, under the premise of ensuring normal cooking operation, through the linkage of the dual-axis tilt sensor and the APP, the user is timely prompted to adjust the holding posture to avoid weighing errors. The cloud analysis module converts discrete weighing records into a visual heat intake trend chart through the establishment of a user-specific historical data model, and correlates the data with the user's pre-set fitness plan to form a synergistic optimization suggestion for diet and exercise, realizing long-term tracking and intelligent decision support for health management.

[0028] Further, the application also proposes that a strain gauge sensor is built-in with a temperature compensation circuit; an elastic heat-insulating force transmission element is embedded with a temperature probe connected to the circuit; when the temperature probe detects > 80℃, a temperature drift correction algorithm is started. The technical solution realizes precise temperature compensation in a high-temperature environment through a triple synergistic design. First, a temperature compensation circuit is integrated inside the strain gauge sensor, which directly compensates for the electrical signal drift of the sensor itself caused by temperature changes at the hardware level, establishing a basic anti-interference capability from the circuit design level. Second, the temperature probe is embedded inside the elastic heat-insulating force transmission element, which utilizes the existing heat-insulating characteristics of the force transmission element to reduce the heating interference of the probe, and at the same time, directly contacts the key nodes in the force transmission path to obtain real-time temperature data closest to the working environment of the sensor. Finally, an 80℃ trigger threshold is set to start the correction algorithm, which is based on the typical heat conduction temperature range of the pot handle area during cooking. When the temperature inside the force transmission element exceeds the material deformation critical point, the non-linear error caused by high temperature is eliminated by dynamically adjusting the compensation coefficient, forming a closed-loop control from temperature detection to dynamic compensation. The three-layer technical means form a complete solution from physical heat insulation, real-time monitoring to intelligent correction, effectively overcoming the defects of response lag and insufficient compensation accuracy of traditional temperature compensation solutions.

[0029] From the above, the lever weighing pot and the intelligent control system thereof provided by the application, through the combination structure of the three-stage lever mechanism and the elastic heat insulation force transmission piece, combined with the temperature compensation algorithm and the double-axis inclination sensor, effectively isolate the high-temperature conduction and lateral stress interference, realize real-time accurate weighing during the cooking process, and automatically calculate and health manage the nutrition data of the food materials through the intelligent terminal, have the advantages of maintaining the weighing precision in the high-temperature environment, reducing the lateral stress interference, and realizing the real-time weighing and nutrition management during the cooking process. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 A perspective view of the lever weighing pot provided by the application is provided.

[0031] Figure 2 Provided by the application is an assembly view of the pot body and the lever weighing pot handle.

[0032] Figure 3 A sectional view of the lever weighing pot provided by the application is provided.

[0033] Figure 4 A structural view of the lever weighing pot handle is provided. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “clockwise”, “counterclockwise” and the like are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0036] In addition, the terms “first” and “second” are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of “a plurality of” is two or more, unless otherwise explicitly limited.

[0037] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is less than the second feature in horizontal height.

[0039] In the prior art, the kitchen weighing method usually needs to transfer the food from the cooking pot to an independent electronic scale for weighing, which causes the cooking process to be interrupted and prone to data errors. Cooking utensils with integrated weighing function have the problem of high-temperature heat conduction interfering with sensor accuracy. Existing solutions improve by adding a heat insulation layer or a temperature compensation algorithm, but the structure is complex and the effect is limited in high-temperature environments. The lateral stress generated by the shaking of the pot body and the user's holding force during the cooking process changes the gravity transmission path, resulting in unstable weighing results.

[0040] To solve the above problems, the inventors noticed that high-temperature environment and mechanical stress are the core obstacles to in-situ weighing. Through analysis, it was found that the traditional lever mechanism cannot simultaneously meet the requirements of force transmission efficiency and thermal insulation. After many experiments, it was found that a multi-stage lever can reduce the range of transmitted force values, and an elastic element can effectively absorb lateral stress. Further research found that by setting the lever fulcrum away from the high-temperature area and using elastic heat insulation medium for force transmission, the heat conduction path can be blocked at the same time. Finally, a combination scheme of three-stage lever mechanism and elastic heat insulation force transmission element is determined, which realizes the dual goals of mechanical transmission optimization and thermal insulation in limited handle space.

[0041] As Figures 1-4As shown, the present application proposes a lever weighing pot, including a pot body 1 and a lever weighing pot handle 2. The lever weighing pot handle 2 contains a pot handle shell, inside which a three-stage lever mechanism and a strain gauge sensor 202 are arranged. The rear end of the three-stage lever mechanism is hinged to the pot handle shell through a rotary hinge 201c, and the front end extends out of the shell to connect the pot body 1. An elastic heat-insulating force transmission member 201b is arranged on the three-stage lever mechanism, and when stressed, the pressure is transmitted to the strain gauge sensor 202 through the force transmission member. Among them, the pot body 1 refers to a cooking container for carrying food materials, which can be realized by stainless steel or aluminum alloy material, and the bottom and the side wall form a continuous curved surface to adapt to different cooking methods. The lever weighing pot handle 2 refers to a handheld component integrated with measurement function, which can be realized by a hollow shell structure, and the inside contains a force transmission mechanism and a sensor assembly. The three-stage lever mechanism refers to a mechanical amplification device with three force transmission nodes, which is mainly for the distribution of load, support and fulcrum. The fulcrum, the force and the load are arranged in sequence, which corresponds to the three-stage lever. It can be realized by combining rigid arms and hinge points, which is used to scale down the gravity of the pot body 1 and direct the transmission to the sensor. The elastic heat-insulating force transmission member 201b refers to a force transmission medium with elastic deformation and heat insulation performance, which can be realized by a ceramic fiber composite material or a silicone rubber coated metal core structure, and is used to isolate the heat source and filter the non-axial stress.

[0042] During use, the gravity of the pot body 1 is transmitted to the front end of the three-stage lever mechanism through the rigid load-bearing arm 201a, and after being scaled down by the lever ratio, it acts on the elastic heat-insulating force transmission member 201b. When the force transmission member deforms elastically, it transmits pure axial pressure to the strain gauge sensor 202, and at the same time, it blocks the heat conduction of the pot body 1 to the sensor area by using the heat insulation characteristics of the material. The rotary hinge 201c allows the lever mechanism to rotate freely when the pot body 1 is tilted, eliminating the influence of lateral moment on measurement accuracy. The trapezoidal structure 201d of the three-stage lever optimizes the force transmission path, so that the sensor is always in the linear working interval.

[0043] Compared with the prior art, the present scheme reduces the overload risk of the sensor by three-stage lever scaling down the force; the elastic heat-insulating force transmission member 201b replaces the traditional rigid connection, and at the same time solves the problems of heat conduction and stress interference; the design of the rotary hinge 201c makes the measurement system automatically adapt to the tilted state of the pot body 1, avoiding the measurement error caused by the change of gravity direction. Through the above technical scheme, the present application realizes the in-situ weighing function of the pot body 1 during cooking, effectively blocks the heat interference of the sensor below 150℃, and eliminates the influence of lateral stress generated by holding operation. The measurement system can still maintain an accuracy error of less than 1% within a 15-degree tilt range of the pot body 1, and can obtain real-time food material weight data without interrupting the cooking process. The elastic heat-insulating force transmission member 201b reduces the heat conduction amount by more than 85% while conducting pressure, so that the working temperature of the sensor is stable below 60℃.

[0044] InFigure 3 and 4 In the specific embodiment shown in FIG. 1, the three-stage lever mechanism comprises a rigid load-bearing arm 201a, the front end of which is connected to the hanging point of the pot body 1, and the rear end of which is hinged to the pot handle shell through a rotary hinge 201c; the rigid load-bearing arm 201a between the elastic heat-insulating force transmission member 201b and the rotary hinge 201c is integrally stamped into a trapezoidal structure 201d with an upward opening, and the opening of the trapezoidal structure 201d forms an internal mounting space.

[0045] In the specific embodiment shown in FIG. 1, the three-stage lever mechanism comprises a rigid load-bearing arm 201a, the front end of which is connected to the hanging point of the pot body 1, and the rear end of which is hinged to the pot handle shell through a rotary hinge 201c; the rigid load-bearing arm 201a between the elastic heat-insulating force transmission member 201b and the rotary hinge 201c is integrally stamped into a trapezoidal structure 201d with an upward opening, and the opening of the trapezoidal structure 201d forms an internal mounting space.

[0046] Further, the front end of the rigid load-bearing arm 201a is rigidly connected with the hanging point of the pot body 1, and the rear end is fixed in a hinged manner, so as to ensure that the gravity is transmitted along a single axis and reduce lateral force interference. The rotary hinge 201c refers to a movable joint for connecting the rigid load-bearing arm 201a and the pot handle shell, which can be specifically implemented by a shaft pin cooperation structure, so as to allow the load-bearing arm to rotate around the hinge point and avoid structural stress concentration caused by the inclination of the pot body 1. The elastic heat-insulating force transmission member 201b refers to a heat-insulating and force transmission assembly arranged on the rigid load-bearing arm 201a, which can be specifically implemented by a silica gel and metal composite layer structure, so as to transmit the pressure to the strain gauge sensor 202 and block the heat conduction of the pot body 1 to the sensor. The upwardly open trapezoidal structure 201d refers to a geometric shape formed on the rigid load-bearing arm 201a by a stamping process, which can be specifically a trapezoidal opening formed by die pressing and composed of two side slopes and a bottom edge. The geometric rigidity of the trapezoidal structure 201d can resist bending deformation, and the cavity formed by the opening is used for isolating electronic elements. The internal mounting space refers to a closed area formed by the trapezoidal structure 201d opening, which can be specifically used for accommodating the controller 3 and the display screen 7, so as to avoid direct heat conduction to the electronic elements by physical isolation and reduce the influence of mechanical vibration on the circuit.

[0047] Specifically, the front end of the rigid load-bearing arm 201a is connected to the hanging point of the pot body 1, and the rear end is fixed through a rotary hinge 201c, forming a stable single-axis force transmission path, so that the gravity of the pot body 1 is only transmitted to the strain gauge sensor 202 along the axis of the load-bearing arm, avoiding the interference of lateral force caused by the shaking of the pot body 1 or the user's holding with the measurement accuracy. In the area of the rigid load-bearing arm 201a between the elastic heat-insulating force transmission member 201b and the rotary hinge 201c, an upward-opening trapezoidal structure 201d is formed by one-piece stamping, and the geometric shape formed by the two side slopes and the bottom edge of the trapezoidal structure 201d significantly improves the bending stiffness of this area, reducing the deformation error caused by stress. The opening of the trapezoidal structure 201d forms an internal mounting space, and the controller 3 and the display screen 7 are arranged in the space, and the closed structure blocks the path of heat conduction from the pot body 1 to the electronic components through the metal, and at the same time isolates the sensitive electronic components from external mechanical vibration. The trapezoidal structure 201d designed in the scheme improves the rigidity of the structure while forming an isolation cavity, which not only blocks the heat conduction path but also provides installation space for the control components, solving the dual problems of high-temperature interference and space limitation. Through the above technical scheme, the application can effectively reduce the conduction of high temperature of the pot body 1 to the sensor and electronic components through the metal structure, avoid the measurement error caused by temperature drift; the rigidity enhancement characteristics of the trapezoidal structure 201d suppress the deformation caused by uneven mechanical stress distribution, ensuring the stability of the weighing data; the design of the internal mounting space enables the controller 3 and other components to be integrated inside the lever mechanism, optimizing the space utilization rate of the handle and realizing the compact layout of the functional modules. In view of the installation error of the hinge point, there is a variable parameter in the program reflecting the amplification effect of the lever, which can be calibrated at the factory stage by using a fixed weight of the weight.

[0048] As Figure 3 and 4The controller 3 and the display screen 7 are arranged in the trapezoidal structure 201d inside the rigid load-bearing arm 201a, the controller 3 is connected with the strain gauge sensor 202 and the control end including the tare key and the memory key is arranged outside the pot handle, and the display screen 7 displays the current weighing data and the historical weighing record in real time. The controller 3 refers to an electronic module for processing weighing signals and performing data operations, which can be implemented by an embedded microprocessor, connected with the strain gauge sensor 202 through a signal line, capable of converting analog signals into digital signals and performing algorithm processing. The tare key refers to a physical button for removing the container tare, which can be implemented by a silicone-sealed tactile switch, and the tare instruction is triggered by single pressing. The memory key refers to an interactive element for calling stored data, which can be implemented by a double-contact button, and the historical data calling function is triggered by long pressing. The tare key and the memory key can be implemented by a control end with a dial lever, which can realize different functions by dialing left and right. The display screen 7 refers to a visual data output device, which can be implemented by an OLED flexible screen, connected with the controller 3 through a wire and embedded in the surface of the pot handle shell. Specifically, when the rigid load-bearing arm 201a is deformed under stress, the electrical signal output by the strain gauge sensor 202 is collected by the controller 3 in real time, and the weight value is generated after analog-digital conversion. When the tare key is triggered, the controller 3 automatically deducts the current weight value as the reference zero point, eliminating the influence of the container self-weight on the measurement result. When the memory key is operated, the controller 3 calls the historical data from the non-volatile memory and sends it to the display screen 7 for comparison and display. The display screen 7 synchronously displays the real-time weight value and the preset storage threshold value, and simultaneously presents the current measurement value and the curve graph of the last three historical records through the split-screen mode.

[0049] In the above scheme, in order to avoid the influence of the front and rear distribution of food on the weighing data, the user can be guided to distribute the food as evenly as possible, so that the overall centroid is in the center of the pot body, for example, a red circle is drawn in the center of the pot body 1, guiding the user to concentrate the food in the red circle when weighing. For this purpose, in a further possible preferred scheme, the dual-axis tilt sensor 6 is integrated into the mounting space of the trapezoidal structure 201d and fixedly connected to the pot handle shell through the cantilever beam isolation support 203. The dual-axis tilt sensor 6 detects the tilt angle of the pot body 1 and transmits it to the controller 3 for weight compensation. The dual-axis tilt sensor 6 refers to a device capable of measuring the tilt angle of the pot body 1 in the horizontal and vertical directions, which can be realized by using a dual-axis acceleration sensor based on MEMS technology. It calculates the real-time tilt angle of the pot body 1 by detecting the change of the component of gravitational acceleration in two orthogonal axes. The cantilever beam isolation support 203 is a rigid connection structure fixed at one end of the pot handle shell and supporting the dual-axis tilt sensor 6 at the other end. It absorbs mechanical vibrations from the pot handle holding through the cantilever structure, while maintaining the synchronization of the dual-axis tilt sensor 6 and the pot body 1 movement. Specifically, the dual-axis tilt sensor 6 is integrated into the trapezoidal structure 201d mounting space of the rigid load-bearing arm 201a, which is directly related to the gravity transmission path of the pot body 1, ensuring that the sensor can accurately sense the posture change of the pot body 1. The cantilever beam isolation support 203 fixedly connects the dual-axis tilt sensor 6 and the pot handle shell, isolates external mechanical stress through the elastic deformation characteristics of the cantilever structure, and avoids the interference of lateral force generated by the holding action on the sensor detection. When the pot body 1 is tilted, the dual-axis tilt sensor 6 measures the tilt angle data in real time and transmits it to the controller 3. The controller 3 dynamically compensates the gravity component according to the pre-set mechanical model, eliminating the weighing error caused by the non-vertical state.

[0050] The combination of the dual-axis tilt sensor 6 and the cantilever beam isolation support 203 in the above scheme physically isolates mechanical stress interference while achieving full-angle dynamic compensation, solving the composite error problem caused by the tilt and holding action of the pot body 1 in the prior art. Through the above technical scheme, the application can eliminate the gravity component error caused by the tilt of the pot body 1 in real time, effectively isolate the mechanical stress interference generated by the holding action, and ensure that accurate weighing data can be obtained without deliberately keeping the pot body 1 vertical during cooking, significantly improving the measurement stability and reliability in actual use scenarios.

[0051] As shown in Figures 2-4 The front end of the rigid load-bearing arm 201a is fixedly connected with a clamping block 201e, and the clamping block 201e is connected with the connecting base 101. The connecting base 101 is in a non-contact state with the inner end of the lever weighing pot handle 2, and only transmits the gravity through the rigid load-bearing arm 201a.

[0052] The connecting base 101 is fixed to the side wall of the pot body 1 and can be welded or fastened by bolts to provide a stable force transmission anchor point for the rigid load-bearing arm 201a. The clamping block 201e is a rigid connecting component fixed to the front end of the rigid load-bearing arm 201a and can be connected by a mortise and tenon structure or a pin shaft to concentrate the gravity of the pot body 1 to the rigid load-bearing arm 201a. The non-contact state refers to the gap between the connecting base 101 and the inner end of the handle, which can be controlled by size tolerance or set by a heat insulation gasket to block the heat conduction path and eliminate lateral stress interference.

[0053] Specifically, the connecting base 101 is welded or fastened to the side wall of the pot body 1 to form a force transmission interface independent of the handle. The clamping block 201e at the front end of the rigid load-bearing arm 201a is embedded in the connecting base 101 by mechanical connection, so that the gravity of the pot body 1 is directly loaded on the rigid load-bearing arm 201a. A gap is reserved between the connecting base 101 and the inner end of the handle to ensure that they are not in physical contact. When the pot body 1 is heated, the heat of the connecting base 101 is only conducted through a single path of the rigid load-bearing arm 201a, and the metal material of the rigid load-bearing arm 201a can delay the heat transfer speed. During cooking, the lateral force generated by the shaking of the pot body 1 is isolated by the gap, avoiding transmission to the internal sensor of the handle, and the gravity is only transmitted to the three-stage lever mechanism through the axial path of the rigid load-bearing arm 201a, thereby eliminating the measurement error caused by multi-path force transmission. Through the above technical solution, the application realizes the single transmission of the gravity of the pot body 1 along the predetermined rigid path, blocks the interference of non-axial force, and isolates the heat conduction between the pot body 1 and the handle through the non-contact structure, so that the weighing sensor can still maintain the measurement accuracy in the high temperature environment, solving the problem of weighing data distortion caused by the coupling of heat conduction and mechanical stress in traditional cooking weighing appliances.

[0054] In a further optimizable scheme, the heat insulation block 201e is made of ceramic or composite silica gel material, which completely wraps the fixed connection area of the front end of the rigid load-bearing arm 201a and the connecting base 101, so as to form a physical insulation layer between the connecting base 101 and the rigid load-bearing arm 201a. The heat insulation block made of ceramic or composite silica gel material refers to a connecting component made of a non-metal material with low thermal conductivity, which can be realized by using alumina ceramic or silica rubber composite material. The thermal conductivity of the material is significantly lower than that of metal material, which can effectively block the heat conduction path. The physical insulation layer refers to an isolation structure formed by completely wrapping the direct contact area between the pot body 1 and the rigid load-bearing arm 201a by the heat insulation block. The isolation structure can be realized by injection molding or die pressing process, so that the rigid load-bearing arm 201a and the connecting base 101 of the pot body 1 are only connected by the heat insulation block to transfer mechanical stress and isolate heat transfer. Specifically, when the pot body 1 is heated, the low thermal conductivity of the heat insulation block significantly slows down the heat transfer rate during the heat conduction from the connecting base 101 to the rigid load-bearing arm 201a. The multiple thermal resistance barriers formed by the molecular structure of the ceramic or composite silica gel material limit the heat transferred to the rigid load-bearing arm 201a within the controllable range of the temperature compensation circuit. The complete wrapping design of the heat insulation block on the fixed connection area eliminates the thermal bridge effect caused by direct contact between metals, ensuring that the environment temperature of the sensor is always below the critical threshold. Through the above technical scheme, the application effectively blocks the heat conduction of the pot body 1 to the weighing sensor, avoids the measurement error caused by temperature drift, and ensures the stability of the weighing data in the high-temperature cooking environment. At the same time, the fixed connection structure design of the heat insulation block and the rigid load-bearing arm 201a maintains the integrity of the mechanical transmission path while achieving thermal insulation, solving the problem of structural strength reduction caused by traditional heat insulation schemes.

[0055] In a further optimization scheme, a Bluetooth module 4 is also provided, which is arranged in the pot handle shell and connected with the controller 3 and the mobile terminal APP. The APP realizes dynamic matching of the food material database to automatically calculate the nutritional components, triggers the early warning prompt based on the inclination angle detection, generates the heat trend chart through cloud analysis and associates with the fitness plan.

[0056] The Bluetooth module 4 is a short-distance transmission unit supporting a wireless communication protocol, which can be implemented by a low-power Bluetooth chip, for example, an integrated circuit conforming to the BLE 4.0 standard. The Bluetooth module 4 establishes a data transmission channel between the controller 3 and the mobile terminal, avoiding the line aging problem caused by wired connection in a high-temperature environment. The mobile terminal APP food material database is a digital information library storing food material nutrition parameters, which can be implemented by a SQLite database. The mapping relationship between weight and nutrition parameters is achieved by calling a preset food material coding table, thereby solving the problem of low efficiency of manual query. The tilt warning prompt is a warning signal triggered when the pot body 1 is detected to be tilted beyond a preset threshold, which can be implemented by a combination of a buzzer and a screen pop-up window. The tilt warning prompt reduces the weighing error caused by a non-vertical state. The cloud analysis module is a data processing unit deployed on a remote server, which can be implemented by a machine learning framework based on Python. The cloud analysis module generates dynamic optimization suggestions by analyzing user historical intake data and fitness plan goals.

[0057] Specifically, the Bluetooth module 4 establishes a bidirectional communication link with the controller 3 and transmits the weighing data to the mobile terminal APP in real time. The APP calls the nutrition conversion formula in the food material database, for example, matches the weight value and the food material type index to correspond to the protein, carbohydrate, and fat content coefficients, to achieve automatic calculation. When the dual-axis tilt sensor 6 detects that the tilt angle of the pot body 1 exceeds 15 degrees, the APP synchronously receives the sensor signal and triggers the warning mechanism, for example, displays a red warning icon and a vibration reminder on the phone interface. The cloud server regularly receives the weighing records and nutrition data uploaded by the APP, generates a heat intake curve by using a time series analysis method, and correlates and matches the data with the fitness course data input by the user in advance, for example, compares and analyzes the total daily intake heat and the exercise consumption, and generates a balance suggestion chart. Through the above technical solutions, the application realizes automatic conversion and visual presentation of nutrition data during cooking, eliminates the time loss of manual query of the nutrition table, establishes a real-time feedback mechanism of the tilt state and the weighing accuracy, reduces the measurement error caused by improper operation, and solves the problem of data island of traditional appliances by converting discrete dietary records into a systematic health management scheme, thereby providing a decision basis for the coordinated optimization of diet and exercise for users.

[0058] In a further optimizable scheme, the strain gauge sensor 202 is built-in with a temperature compensation circuit, and the elastic heat-insulating force transmission member 201b is embedded with a temperature probe connected to the circuit. When the temperature probe detects that the temperature exceeds 80℃, a temperature drift correction algorithm is started. The temperature compensation circuit refers to a circuit module that can automatically adjust the output signal of the sensor according to temperature changes. Specifically, it can be realized by combining a bridge circuit with a thermistor to offset the drift of the electrical signal caused by temperature changes. The elastic heat-insulating force transmission member 201b refers to a structural component that has heat-insulating properties and can transmit mechanical force. Specifically, it can be realized by using a ceramic fiber composite material to form a layered structure. A cavity is provided inside to reduce the heat conduction path while maintaining the rigid force transmission function. The temperature probe refers to a detection element that monitors the temperature changes inside the force transmission member in real time. Specifically, it can be realized by using a micro thermocouple or a thin-film thermistor to form a closed-loop feedback with the sensor circuit. The temperature drift correction algorithm refers to a calculation model that dynamically adjusts the output of the sensor based on temperature data. Specifically, it can be realized by using a compensation coefficient adaptive adjustment method based on polynomial fitting to activate the nonlinear error correction when the temperature exceeds the preset threshold.

[0059] Specifically, the temperature compensation circuit eliminates the baseline drift of the strain gauge sensor 202 itself caused by the ambient temperature through hardware-level signal adjustment. The elastic heat-insulating force transmission member 201b physically blocks the conduction of heat from the pot body 1 to the sensor area, and its embedded temperature probe directly monitors the actual temperature in the force transmission path. When the probe detects that the temperature exceeds 80℃, the correction algorithm dynamically adjusts the compensation parameters based on real-time temperature data, such as updating the temperature-resistance relationship curve by piecewise linear interpolation method, to eliminate the nonlinear error of the sensor output in high-temperature environment. The temperature compensation circuit, heat-insulating force transmission member, and correction algorithm form a synergistic effect to realize temperature isolation, real-time monitoring, and dynamic compensation in the key nodes of the force transmission path. Through the above technical scheme, the application can maintain the measurement accuracy of the strain gauge sensor 202 in high-temperature working conditions of the pot body 1. For example, when the force transmission member temperature rises due to frying and stir-frying operations, real-time temperature monitoring and dynamic algorithm adjustment can eliminate the sensor output deviation caused by thermal expansion, ensuring the stability of the food material weighing data. This scheme is particularly suitable for scenarios that require long-time high-temperature cooking, avoiding the cumulative error of traditional sensors caused by heat conduction.

[0060] In summary, the scheme provides a lever weighing pot and its intelligent control system. Through the combination of a three-stage lever mechanism and an elastic heat-insulating force transmission member 201b, combined with a temperature compensation algorithm and a dual-axis inclination sensor 6, it effectively isolates high-temperature conduction and lateral stress interference, realizes real-time and accurate weighing during cooking, and realizes automatic calculation and health management of food nutrition data through an intelligent terminal. It has the advantages of maintaining weighing accuracy in high-temperature environments, reducing lateral stress interference, realizing real-time weighing during cooking, and nutrition management.

[0061] In the description of the specification, reference to "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the above expressions in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0062] Although the embodiments of the present application have been shown and described above, it should be understood by those skilled in the art that the above embodiments are exemplary, and should not be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements, and variations to the above embodiments within the scope of the present application without departing from the principles and spirit of the present application.

Claims

1. A lever-operated weighing pot, characterized in that, include: - Pot body (1); - The lever weighing pot handle (2) includes a pot handle shell, a three-stage lever mechanism and a strain gauge sensor (202) disposed in the pot handle shell. The rear end of the three-stage lever mechanism is hinged to the pot handle shell through a rotary hinge (201c), and the front end extends out of the pot handle shell and is connected to the pot body (1). - The three-stage lever mechanism is equipped with an elastic heat-insulating force transmission component (201b). When the three-stage lever mechanism is subjected to force, the pressure is transmitted to the strain gauge sensor (202) through the elastic heat-insulating force transmission component (201b).

2. The lever weighing pot according to claim 1, characterized in that: - The three-stage lever mechanism includes a rigid load-bearing arm (201a), the front end of which is connected to the suspension point of the pot body (1), and the rear end is hinged to the pot handle shell through a rotating hinge (201c); - The rigid load-bearing arm (201a) between the elastic thermal insulation force transmission component (201b) and the rotary hinge (201c) is integrally stamped into an upward-opening trapezoidal structure (201d), the opening of which forms an internal installation space.

3. The lever weighing pot according to claim 2, characterized in that: - The trapezoidal structure (201d) is equipped with a controller (3) and a display screen (7) within its installation space. - The controller (3) is connected to the strain gauge sensor (202), and its control end is located on the outside of the pot handle and includes a tare key and a memory key; - The display screen (7) is connected to the strain gauge sensor (202) for real-time display of current weighing data and historical weighing records.

4. The lever weighing pot according to claim 3, characterized in that, Also includes: - A dual-axis tilt sensor (6) is integrated into the installation space of the trapezoidal structure (201d) and is fixedly connected to the pot handle shell by a cantilever beam isolation bracket (203); - The dual-axis tilt sensor (6) detects the tilt angle of the pot body and transmits it to the controller (3) for weight compensation.

5. The lever weighing pot according to claim 2, characterized in that: - A connecting base (101) is provided on the side wall of the pot body (1). - A locking block (201e) is fixedly connected to the front end of the rigid load-bearing arm (201a), and the locking block (201e) is connected to the connecting base (101); - The connecting base (101) and the inner end of the lever weighing pot handle (2) remain in a non-contact state, and the gravity is transmitted only through the rigid load-bearing arm (201a).

6. The lever weighing pot according to claim 5, characterized in that: - The card block (201e) is a heat insulation block made of ceramic or composite silicone material. The heat insulation block completely covers the fixed area between the front end of the rigid load-bearing arm (201a) and the connecting base (101), so that a physical isolation layer is formed between the connecting base (101) and the rigid load-bearing arm (201a).

7. The lever weighing pot according to claim 2, characterized in that: - The rigid load-bearing arm (201a) is a 304 stainless steel strip with a thickness of 2-3mm.

8. The lever weighing pot according to claim 4, characterized in that, Also includes: - Bluetooth module (4), located inside the handle shell, connects the controller (3) and the mobile APP; - The app implements the following functions: - Dynamically matches the ingredient database and automatically calculates the protein / carbohydrate / fat content based on weight and ingredient type; - When the dual-axis tilt sensor (6) detects a tilt angle > 15°, a tilt warning is triggered; - Analyze historical data in the cloud to generate calorie intake trend charts and link them to the user's fitness plan.

9. The lever weighing pot according to claim 1, characterized in that: - The strain gauge sensor (202) has a built-in temperature compensation circuit; - A temperature probe is embedded in the flexible thermally insulated force transmission component (201b) and connected to the circuit. - When the temperature probe detects a temperature >80℃, the temperature drift correction algorithm is activated.

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