A telescopic cutter structure of a hand-held food processor

Abstract

The utility model relates to food processing technology field discloses a kind of telescopic cutter structures of hand-held food processor, the module includes bowl, sealing cover, cutter and elastic reset element;Bowl upper side opening, sealing cover is detachably connected on bowl upper side, cutter is located in the bowl below sealing cover inside.The sealing cover is provided with shaft hole, the shaft hole is worn with cutter shaft, cutter shaft can rotate relative to shaft hole and move along the axis direction, cutter shaft is connected with cutter to drive cutter rotation and up and down movement;Elastic reset element is used to exert the force of upward movement to cutter shaft, drive cutter upward reset.When using, user can exert force artificially, can make cutter shaft drive cutter down, after loosening, elastic reset element pushes cutter shaft and cutter up reset.This module does not need complex motor and screw system as the power source of cutter up and down movement, simplify structure, reduce cost, and small in size, strong portability, adapt to outdoor and other scenes.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and in particular to a telescopic blade structure for a handheld food processor. Background Technology

[0002] With the improvement of residents' living standards and the popularization of healthy eating concepts, miniaturized and portable food processing equipment has gradually become a popular product in the consumer market. Among them, micro puree makers, with their ability to quickly turn fruits, vegetables, and other ingredients into smooth purees, are widely used in daily family meals and infant food preparation. In recent years, with the rise of leisure activities such as outdoor camping and short trips, consumers have placed higher demands on the portability, lightweight design, and cost-effectiveness of micro puree makers. Traditional large-scale food processing equipment can no longer meet the needs of such scenarios, and the industry urgently needs to develop micro puree makers that are more suitable for portable scenarios and have a lower cost. To achieve automated processing capabilities for micro fruit puree makers, various related technical solutions have emerged in the prior art. For example, Chinese utility model patent document (publication number CN216674577U) discloses a micro fruit puree maker, which mainly includes a shell, a platform, a position motor, and a drive motor. The platform is movably positioned inside the shell between a first position and a second position. The position motor is mounted on the shell and coupled to the platform, driving the platform to rotate. The drive motor is mounted on the platform, allowing the drive motor and its cooperating power shaft to move synchronously between the first and second positions under the action of the position motor. This technical solution, through the coordination of dual motors and the movement and rotation of the platform, achieves automated operation in the food processing process, improving the ease of use of the micro fruit puree maker to a certain extent. However, the existing micro puree makers and similar food processing machines still have significant technical shortcomings in practical applications. Specifically, to achieve the up-and-down movement of the cutter shaft, existing equipment generally adopts a structure design with a motor and a complex lead screw transmission system. The lead screw system not only requires high-precision machining to ensure transmission stability, but also needs to be equipped with multiple supporting components (such as nuts, guide rods, limit components, etc.). This directly leads to a significant increase in the manufacturing cost of the equipment, which is ultimately reflected in the product price, making it difficult to reduce the purchase cost for consumers and limiting the market penetration of the product. At the same time, the complex lead screw transmission system and dual-motor layout require a large amount of internal space, making it difficult to reduce the overall size of the machine. Especially in scenarios where portability is a high requirement, such as outdoor camping and short trips, existing equipment is bulky and heavy, making it inconvenient for users to carry and store, and failing to meet the usage needs in such scenarios. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a telescopic blade structure for a handheld food processor.

[0004] A telescopic blade structure for a handheld food processor designed for this purpose includes a bowl, a sealing cap, a blade, and a resilient reset element. The bowl has an opening on its upper side. The sealing cap is detachably connected to the upper side of the bowl; The cutting tool is located inside the bowl-shaped component below the sealing cover; The sealing cover is provided with a shaft hole, and a cutter shaft is inserted through the shaft hole. The cutter shaft rotates relative to the shaft hole and moves along its axial direction. The cutter shaft is connected to the cutter, and the cutter shaft can drive the cutter to rotate and move up and down; The elastic reset element is used to apply an upward force to the tool shaft, thereby driving the tool to move upward and reset.

[0005] Preferably, a handheld module is also included, which is disposed above the bowl. The handheld module includes a connecting element and a main unit module, wherein the main unit module is movable vertically relative to the connecting element. The connecting element is detachably connected to the bowl piece; The cutter shaft is connected to the host module via a transmission, and the host module can drive the cutter shaft to move up and down and rotate.

[0006] Preferably, the host module includes a mounting housing, a driver, and a control circuit board; The mounting housing is movable vertically relative to the connecting element; The driver and control circuit board are both fixedly mounted on the mounting housing; The driver is connected to the cutter shaft drive.

[0007] Preferably, the connecting element is connected to the bowl piece using a snap-fit, screw-fit, or threaded structure.

[0008] Preferably, the driver is a motor.

[0009] Preferably, the sealing cover is inserted into the bowl in the vertical direction; the sealing cover is provided with a plurality of positioning parts, and the bowl is provided with a plurality of positioning grooves with upper openings corresponding to the positioning parts; the positioning parts are inserted into the positioning grooves from top to bottom.

[0010] Preferably, the connecting element is a cylindrical structure with openings on both the top and bottom sides, and the cutter shaft is at least partially disposed within the cylindrical connecting element.

[0011] Preferably, one end of the elastic reset element abuts against the sealing cover, and the other end abuts against the host module.

[0012] Preferably, the cutter shaft is provided with a reset connector; one end of the elastic reset element abuts against the sealing cover and the other end abuts against the reset connector.

[0013] Compared with existing technologies, this invention uses "human pressing" as the power source for the downward movement of the blade shaft. It eliminates the need for additional drive motors and lead screw assemblies. Relying solely on the movable characteristic of the blade shaft relative to the sealing cover shaft hole, users can easily move the blade downward by pressing with their hands, meeting the needs for adjusting the blade position during food cutting and stirring. Simultaneously, with the upward force applied to the blade shaft by the elastic reset element, the blade shaft can automatically drive the blade upward to reset after the user releases the pressing action. This module does not require a complex motor and lead screw system as the power source for the up and down movement of the blade, simplifying the structure, reducing costs, and is small in size, highly portable, and suitable for outdoor scenarios. Attached Figure Description

[0014] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is one of the cross-sectional structural schematic diagrams of this utility model; Figure 4 This is the second cross-sectional structural schematic diagram of the present invention; Figure 5 This is the second three-dimensional structural schematic diagram of the present invention; Figure 6 This is a schematic diagram showing the assembly of the bowl and the sealing lid; Figure 7 This is a cross-sectional structural diagram showing the bowl and connecting elements in a connected state. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] See Figures 1-7A handheld food processor includes a bowl 10, a handheld module 20, a sealing cover 30, a blade 40, and an infrared temperature measuring element 50. The bowl 10 has an opening on its upper side, and the handheld module 20 is positioned above the bowl 10. The handheld module 20 is used to drive the blade 40 to move up and down and rotate, and includes a connecting element 210 and a main unit module 220. The connecting element 210 is detachably connected to the bowl 10. The main unit module 220 is vertically movable relative to the connecting element 210. The sealing cover 30 is detachably connected to the upper side of the bowl 10. The blade 40 is positioned inside the bowl 10 below the sealing cover 30. The blade 40 is drively connected to the main unit module 220 and can move up and down synchronously with the main unit module 220. The cover 30 is provided with a temperature measuring channel 310 that runs vertically through the interior; the infrared temperature measuring element 50 is at least partially located in the temperature measuring channel 310 or is located directly above the temperature measuring channel 310; the infrared temperature measuring element 50 is used to detect the real-time temperature of the food inside the bowl 10 and establish a communication connection with the host module 220 to transmit the detected food temperature value inside the bowl 10 to the host module 220; the host module 220 is configured to: receive the temperature value transmitted by the infrared temperature measuring element 50, judge the temperature value, and drive the blade 40 to rotate when the temperature value is greater than a preset threshold A and less than a preset threshold B; when the temperature value is less than the preset threshold A or greater than the preset threshold B, control the blade 40 to remain in standby mode.

[0017] This handheld food processor is designed for processing icy foods. Its operating principle is as follows: First, prepare the ingredients and equipment. Evenly fill the bowl 10 with the frozen food to be processed (such as frozen fruit, ice cubes, frozen milk, etc.), ensuring that the total amount of ingredients does not exceed the maximum capacity of the bowl 10 to avoid spillage during mixing. Then, fasten the sealing cap 30 to the upper opening of the bowl 10. The sealing cap 30 and the bowl 10 are connected in a detachable manner through the matching structure (such as buckles, threads, etc.) to ensure a good seal between the sealing cap 30 and the bowl 10 and prevent food from splashing during subsequent mixing.

[0018] Next, assemble the handheld module and the bowl. Detachably connect the connecting element 210 of the handheld module 20 to the bowl 10 (e.g., through snap-fit, screw-on structure, or threaded engagement) to stably mount the handheld module 20 above the bowl 10. At this time, the main module 220 of the handheld module 20 forms a transmission connection with the cutter 40 inside the bowl 10, and the main module 220 can move up and down relative to the connecting element 210, thereby driving the cutter 40 to move up and down synchronously inside the bowl 10, preparing for subsequent deep mixing. Next, the infrared temperature measuring element is activated to detect the temperature. After the equipment is assembled, the infrared temperature measuring element 50 starts working through the preset vertical temperature measuring channel 310 on the sealing cover 30. If the infrared temperature measuring element 50 is at least partially located within the temperature measuring channel 310, it can directly and closely detect the temperature of the food inside the bowl 10. If the infrared temperature measuring element 50 is positioned directly above the temperature measuring channel 310, it can also accurately capture the infrared radiation signal of the food through the temperature measuring channel 310, thereby obtaining the actual temperature value of the food in real time. Subsequently, the infrared temperature measuring element 50 transmits the detected temperature data to the host module 220 through a preset communication link (such as wire connection, wireless transmission, etc.), completing the acquisition and transmission of temperature information. Then, the host module makes intelligent judgments based on temperature data and user operations. When the user manually presses the control switch 230 on the main unit module 220, the main unit module 220 immediately retrieves the latest temperature value transmitted by the infrared temperature measuring element 50 and compares it with the preset threshold A (lower temperature threshold, corresponding to the food being too hard) and threshold B (higher temperature threshold, corresponding to the food being too soft or partially melted). If the temperature value is greater than the preset threshold A and less than the preset threshold B, it means that the food is in a suitable temperature range for blending (moderate hardness, which can ensure a delicate texture after blending). The main unit module 220 then starts the driver program, controls the blade 40 to start rotating, and simultaneously drives the main unit module 220 to move up and down relative to the connecting element 210 through external force, causing the blade 40 to move up and down synchronously while rotating, achieving efficient and deep blending of the food. If the temperature value is less than the preset threshold A (food being too hard) or greater than the preset threshold B (food being too soft / melted), it is determined that the current state of the food is not suitable for blending. The main unit module 220 controls the blade 40 to remain in standby mode and does not start the blending action to avoid high load operation of the motor or poor texture of the food.

[0019] In this invention, a prompting element can also be set on the host module 220 to provide feedback on the device status to the user. To enhance ease of use, the device can be additionally equipped with a buzzer, display screen, and other prompting elements (electrically connected to the main module 220). When the main module 220 determines that the temperature value is less than threshold A or greater than threshold B and controls the blade 40 to remain in standby mode, the main module 220 will simultaneously trigger the prompting elements to operate. If it is a buzzer, it will emit a preset frequency of prompting sounds (such as intermittent "beep" sounds) to remind the user that the food temperature is not suitable for blending. If it is a display screen, it will intuitively display the current food temperature value and text prompts such as "Temperature too low / too high, do not start for now," and can further display the suitable temperature range (such as "Recommended temperature: threshold A~threshold B") to guide the user to adjust the food temperature (such as letting hard food warm up for a while, or putting soft food back in the freezer). If the temperature value is within the suitable range and the blade 40 starts blending normally, the prompting elements can also emit normal operation prompts (such as a single buzzer sound, the display screen showing "Normal blending" and real-time speed, etc.), allowing the user to clearly understand the operating status of the device.

[0020] See Figures 3 to 6 The sealing cover 30 is provided with a shaft hole 300, and a blade shaft 200 passes through the shaft hole 300. The blade shaft 200 rotates relative to the shaft hole 300 and moves along its axial direction. One end of the blade shaft 200 is connected to the main unit module 220, and the other end is connected to the blade 40. The blade shaft 200 passes through the shaft hole 300 of the sealing cover 30. On the one hand, it can rotate flexibly relative to the shaft hole 300, ensuring that the rotational power output by the main unit module 220 can be efficiently transmitted to the blade 40, providing the rotational driving force required for the blade 40 to stir. On the other hand, the blade shaft 200 can move freely along the axial direction of the shaft hole 300. When the main unit module 220 moves up and down relative to the connecting element 210, it can synchronously drive the blade 40 to move up and down within the bowl 10 through the blade shaft 200, realizing a compound stirring action of "blade rotation + axial movement", ensuring deep and uniform stirring of icy ingredients. Meanwhile, the shaft hole 300 positions and guides the cutter shaft 200, preventing it from shifting or shaking during rotation or movement, thus ensuring stable power transmission. Furthermore, this structure achieves power and motion transmission without compromising the sealing effect of the sealing cover 30 and the bowl 10, preventing food splashing or soup leakage during mixing, thus balancing the stability of equipment operation and safety of use.

[0021] Furthermore, a sealing ring is provided between the shaft hole 300 and the cutter shaft 200. The sealing ring can improve the sealing performance of both and prevent food from splashing out from the gap between them.

[0022] See Figures 3 to 5It also includes an elastic reset element 60, which adopts an existing elastic element such as a spring. One end of the elastic reset element 60 abuts against the sealing cover 30 and the other end abuts against the host module 220. The elastic reset element 60 is used to apply an upward moving force to the host module 220. When the user drives the main module 220 to move downward relative to the connecting element 210 by external force (such as pressing the top of the main module 220), the main module 220 will exert a squeezing force on the elastic reset element 60, causing the elastic reset element 60 to undergo elastic deformation and store elastic potential energy. When the external force driving the main module 220 downward is removed, the elastic reset element 60 will release the stored elastic potential energy and apply an upward force to the main module 220, assisting the main module 220 to quickly and smoothly return to its initial position. This eliminates the need for the user to manually lift and reset, simplifying the operation process. It also avoids the problem of the main module 220 being unable to reset on its own due to its own weight or component friction, ensuring the smooth implementation of the subsequent "tool moving up and down with the main module to stir and beat" function.

[0023] See Figure 4 The host module 220 includes a mounting housing 221, a driver 222, and a control circuit board 223. The mounting housing 221 is vertically movable relative to the connecting element 210. The driver 222 and the control circuit board 223 are both fixedly mounted on the mounting housing 221. The control circuit board 223 is connected to the driver 222 and the infrared temperature measuring element 50. The control circuit board 223 is configured to: receive the temperature value transmitted by the infrared temperature measuring element 50, judge the temperature value, and drive the driver 222 to start when the temperature value is greater than a preset threshold A and less than a preset threshold B; and control the driver 222 to remain in standby mode when the temperature value is less than the preset threshold A or greater than the preset threshold B.

[0024] The specific functions of the main unit module 220 are as follows: the mounting housing 221 provides a stable mounting carrier for the driver 222 and the control circuit board 223, and at the same time, it can move up and down relative to the connecting element 210, driving the internal components and the blade 40 connected by transmission to move synchronously, providing support for the axial stirring action of the blade 40; the driver 222 (such as a motor or a motor and a gearbox combined for transmission) serves as a power source, and can output rotational power under control, which is transmitted to the blade 40 through the blade shaft 200, providing driving force for the blade 40 to rotate and stir the food.

[0025] The control circuit board 223 is the core control hub. On the one hand, it is connected to the infrared temperature measuring element 50 to receive the temperature value of the food in the bowl 10 in real time. The temperature value is judged by a preset program. When the temperature is greater than the preset threshold A and less than the preset threshold B, a start signal is generated to drive the driver 222 to operate. When the temperature is less than the threshold A or greater than the threshold B, a standby signal is generated to control the driver 222 to remain stationary to avoid ineffective stirring or equipment overload. In addition, the control switch 230 establishes a touch connection with the control circuit board 223, forming a "human-machine interaction trigger terminal". The user sends an operation command to the control circuit board 223 by pressing the control switch 230. The control circuit board 223 only performs the start-up or standby judgment based on the acquired temperature value after receiving the touch command, ensuring that the equipment only operates when the user actively operates and the food is in a suitable condition, thus balancing operational safety and control accuracy.

[0026] In this invention, the mounting housing 221 and the connecting element 210 are provided with mutually cooperating upward and downward limiting structures. The upward limiting structure is used to constrain the maximum upward movement of the mounting housing 221 relative to the connecting element 210; the downward limiting structure is used to constrain the maximum downward movement of the mounting housing 221 relative to the connecting element 210. The mounting housing 221 and the connecting element 210 can be connected by a slider and a slide rail to constrain the two relative sliding configurations. The upward and downward limiting structures can be achieved by providing upper and lower limit blocks above and below the connecting element 210, respectively, to limit the upward and downward movement of the mounting housing 221. Alternatively, other existing limiting structures can be used, such as providing microswitches above and below the connecting element 210. When the mounting housing 221 moves downward or upward relative to the connecting element 210 to its maximum stroke, the mounting housing 221 contacts the microswitch to achieve limiting and sensing.

[0027] In this invention, the connecting element 210 is equipped with a detection element for detecting whether the bowl 10 is connected to the connecting element 210. The detection element can be a micro switch; that is, when the bowl 10 is assembled with the connecting element 210, the bowl 10 presses the sensing end of the micro switch. The detection element is connected to the control circuit board 223; the control circuit board 223 controls the driver 222 to rotate the cutter 40 to a preset position based on the electrical signal generated by the detection element. The purpose of this embodiment is that, since the cutter 40 is located below the sealing cover 30, when the cutter 40 is at a certain angle, the blade of the cutter 40 may be directly below the infrared temperature measuring element 50. In this case, the cutter 40 may affect the detection of the infrared temperature measuring element 50. This embodiment can change the position of the blade by rotating the cutter 40 after the bowl 10 is assembled with the connecting element 210, thereby preventing the blade from affecting the detection of the infrared temperature measuring element 50. To further ensure that the blade does not obstruct the detection of the infrared temperature sensing element 50, a sensing element can be installed on the cutter 40 or the cutter shaft 200, and a sensor that works in conjunction with it can be installed on the main unit module 220 to precisely control the hovering position of the cutter 40 after rotation. For example, a magnet can be used as the sensing element, and a Hall sensor can be used as the sensor.

[0028] See Figure 6 The sealing cover 30 is inserted into the bowl 10 in the vertical direction; the sealing cover 30 is provided with a plurality of positioning parts 320, and the bowl 10 is provided with a plurality of positioning grooves 110 with upper openings corresponding to the positioning parts 320; the positioning parts 320 are inserted into the positioning grooves 110 from top to bottom.

[0029] See 3 and Figure 4 The connecting element 210 has a cylindrical structure with openings on both the top and bottom. The main unit module 220 moves up and down within the cylindrical connecting element 210, at least partially. The cutter shaft 200 is located at least partially within the cylindrical connecting element 210. As the cutter shaft 200 moves up and down, it gradually moves from inside the connecting element 210 into the bowl 10 or from the bowl 10 back into the connecting element 210.

[0030] See Figure 7 A mounting bracket 211 is provided on the connecting element 210, and the infrared temperature measuring element 50 is fixedly mounted on the mounting bracket 211. The infrared temperature measuring element 50 adopts an existing infrared temperature sensor.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., 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 component 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. 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.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A telescopic blade structure for a handheld food processor, characterized in that: It includes a bowl (10), a sealing cap (30), a knife (40), and a resilient reset element (60); The bowl (10) has an opening on its upper side. The sealing cap (30) is detachably connected to the upper side of the bowl (10); The knife (40) is located inside the bowl (10) below the sealing cover (30); The sealing cover (30) is provided with a shaft hole (300), and a cutter shaft (200) is inserted through the shaft hole (300). The cutter shaft (200) is rotatable relative to the shaft hole (300) and is moved along its axial direction. The cutter shaft (200) is connected to the cutter (40), and the cutter shaft (200) can drive the cutter (40) to rotate and move up and down; The elastic reset element (60) is used to apply an upward force to the cutter shaft (200), thereby driving the cutter (40) to move upward and reset.

2. The telescopic blade structure of a handheld food processor according to claim 1, characterized in that: It also includes a handheld module (20) disposed above the bowl (10); The handheld module (20) includes a connecting element (210) and a host module (220), wherein the host module (220) is movable up and down relative to the connecting element (210); The connecting element (210) is detachably connected to the bowl (10); The cutter shaft (200) is connected to the host module (220) for transmission, and the host module (220) can drive the cutter shaft (200) to move up and down and rotate.

3. The telescopic blade structure of a handheld food processor according to claim 2, characterized in that: The host module (220) includes a mounting housing (221), a driver (222), and a control circuit board (223); The mounting housing (221) is vertically movable relative to the connecting element (210); The driver (222) and the control circuit board (223) are both fixedly mounted on the mounting housing (221); The driver (222) is connected to the cutter shaft (200) in a driving connection.

4. The telescopic blade structure of a handheld food processor according to claim 2, characterized in that: The connecting element (210) is connected to the bowl (10) by a snap-fit, screw-fit, or threaded structure.

5. The telescopic blade structure of a handheld food processor according to claim 3, characterized in that: The driver (222) is an electric motor.

6. The telescopic blade structure of a handheld food processor according to claim 1, characterized in that: The sealing cap (30) is inserted into the bowl (10) in the vertical direction; the sealing cap (30) is provided with a plurality of positioning parts (320), and the bowl (10) is provided with a plurality of positioning grooves (110) with upper openings corresponding to the positioning parts (320); the positioning parts (320) are inserted into the positioning grooves (110) from top to bottom.

7. The telescopic blade structure of a handheld food processor according to claim 2, characterized in that: The connecting element (210) has a cylindrical structure with openings on both the upper and lower sides, and the cutter shaft (200) is at least partially disposed inside the cylindrical connecting element (210).

8. The telescopic blade structure of a handheld food processor according to claim 2, characterized in that: One end of the elastic reset element (60) abuts against the sealing cover (30), and the other end abuts against the host module (220).

9. The telescopic blade structure of a handheld food processor according to claim 1, characterized in that: The cutter shaft (200) is provided with a reset connector; one end of the elastic reset element (60) abuts against the sealing cover (30) and the other end abuts against the reset connector.

10. The telescopic blade structure of a handheld food processor according to claim 1, characterized in that: A sealing ring is provided between the shaft hole (300) and the cutter shaft (200).

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