Food processor with detectable filter screen

Abstract

This invention relates to food processing equipment, specifically disclosing a food processing machine capable of detecting filter screens. The machine includes a body, a pulping chamber, a drain valve, a control device, a pulp receiving container, and a filter screen. The pulp receiving container includes a receiving cup and a lid. The lid is equipped with a magnet. The lid overlaps the receiving cup, placing the magnet in a first position. The filter screen overlaps the receiving cup, and the lid covers the filter screen, placing the magnet in a second position. The machine body is equipped with a first detection device and a second detection device connected to the control device. When the magnet is in the first position, the control device controls the drain valve to open based on the signal sensed by the first detection device. When the magnet is in the second position, the first detection device is in a signal-shielded state, and the control device controls the drain valve to open based on the signal sensed by the second detection device. This invention can detect filter screens and still detect the receiving cup after the filter screen is placed, improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of food processing equipment technology, and specifically to a food processing machine capable of detecting filter screens. Background Technology

[0002] Currently, food processors on the market are becoming increasingly diverse and intelligent. As living standards improve, users are demanding higher performance from food processors. For the no-wash series, the current pulping function can achieve cell wall breaking without filtering. Moreover, the no-wash models on the market also come with more and more built-in functions, including soy milk, multigrain, coffee, and tofu pudding functions. However, functions such as coffee and tofu pudding require a filter to be placed to achieve the corresponding functions.

[0003] For example, when making coffee or tofu pudding, a filter is necessary. To achieve a smoother, better-tasting beverage, users often place the filter on the blender cup while the machine is discharging the entire batch of beverage to complete the filtration process.

[0004] However, the filters in the hands-free food processors currently on the market cannot detect whether a filter is in place. When users select to make beverages that require a filter to complete the corresponding function, the absence of a filter during operation will cause the beverage to fail, resulting in a poor user experience.

[0005] Secondly, there are currently two main methods for detecting the receiving cup: one is to directly detect the position of the receiving cup by detecting the magnet on the receiving cup itself, and the other is to indirectly detect the receiving cup by detecting the magnet on the receiving cup lid. For the second method, in existing technology, once the user places the filter screen, the cup lid cannot be placed, thus preventing the detection of the receiving cup and limiting its functionality, including its application scenarios. Summary of the Invention

[0006] The purpose of this invention is to provide a food processing machine that can detect filter screens, thereby solving the problem that existing food processing machines cannot detect filter screens.

[0007] To achieve the above objectives, the present invention provides a food processing machine capable of detecting a filter screen, comprising a body, a pulping chamber disposed in the body, a drain valve with a drain nozzle, a control device, and a pulp receiving container. The pulp receiving container includes a pulp receiving cup and a cup lid. The cup lid has a pulp inlet corresponding to the drain nozzle. The cup lid is equipped with a magnet, and the cup lid overlaps the pulp receiving cup, placing the magnet in a first position. The food processing machine also includes a filter screen, which overlaps the pulp receiving cup, and the cup lid covers the filter screen, placing the magnet in a second position. The body is provided with a first detection device and a second detection device connected to the control device. When the magnet is in the first position, the control device controls the drain valve to open according to the signal sensed by the first detection device. When the magnet is in the second position, the first detection device is in a signal shielding state, and the control device controls the drain valve to open according to the signal sensed by the second detection device.

[0008] This invention provides a food processing machine capable of detecting filter screens. By incorporating a magnet in the cup lid, which has a first position and a second position, the machine can indirectly determine whether a filter screen is placed in the receiving cup and whether the receiving cup is properly positioned based on the magnet's location. The machine body is equipped with a first detection device and a second detection device connected to a control device. When the magnet is in the first position, it triggers the first detection device to detect the receiving cup's position. When the magnet is in the second position, i.e., when the receiving cup, filter screen, and cup lid are all present, it triggers the second detection device. The first detection device is in a signal shielding state, thereby indirectly detecting the position of the filter screen and receiving cup, i.e., identifying the presence or absence of a filter screen through the magnet on the cup lid. The control device receives a sensor signal from the first detection device and controls the drain valve to open, thus meeting the user's need for beverage preparation without filtration. Draining the slurry only after the receiving cup is in place prevents spillage onto the work surface. Upon receiving a sensor signal from the second detection device, the control device controls the drain valve to open, thus meeting the user's need for filtered beverages. For example, when making tofu pudding, draining the slurry only after the receiving cup is in place allows the slurry to mix with the pre-placed glucono-delta-lactone in the cup to successfully prepare the tofu pudding. This avoids draining before the filter is in place, which could lead to beverage failure. Furthermore, draining the slurry after both the receiving cup and filter are in place prevents spillage onto the work surface. Therefore, this food processor can still detect the receiving cup even after the filter is in place, enabling scene switching for corresponding functions. This diversifies the functions of the food processor, ensures the smooth preparation of different types of beverages, and improves the user experience.

[0009] Preferably, the maximum sensing distance of the first detection device is greater than the maximum sensing distance of the second detection device.

[0010] The maximum sensing distance of the first detection device is greater than that of the second detection device. This means that when the magnet triggers the first detection device at the first position, the magnet cannot enter the sensing range of the second detection device, thus failing to trigger it. Even without shielding the signal of the second detection device, interference with the sensing signal of the first detection device can be avoided, ensuring the effectiveness and reliability of the first detection device's detection. This allows for selective triggering of both the first and second detection devices by the magnet, resulting in more accurate detection of the receiving cup's arrival. Furthermore, the drain valve opens to discharge slurry after the receiving cup is in place and remains closed before the cup is in place, ensuring safe and reliable operation. The method of differentiating the maximum sensing distances of the first and second detection devices to avoid signal interference is simple in structure and easy to implement.

[0011] Preferably, the machine body is provided with a first control button, and the control device blocks the signal of the first detection device according to the triggering of the first control button.

[0012] The machine is equipped with a first control button for user operation. Users can flexibly trigger the first control button according to the type of beverage to be made or the processing progress, so as to shield the signal of the first detection device. This makes operation convenient. When the user triggers the first control button, the machine performs the corresponding function while shielding the signal of the first detection device. The second detection device performs filter screen detection, and the whole machine automatically performs the filtering and pulping function. The beverage obtained in the receiving cup is filtered. Users can use it with peace of mind, ensuring the smooth production of beverages and improving the user experience.

[0013] Preferably, the first control button is a filter button for performing the filtration function or a function button for making tofu pudding, coffee, or fine soy milk.

[0014] The first control button can take multiple forms. Users can trigger the filter button when filtration is needed to obtain the filtered beverage. Alternatively, after selecting a function, they can obtain the corresponding type of filtered beverage. Whether selecting individual filtration or pulping function, the signal of the first detection device can be shielded to ensure accurate detection by the second detection device, thereby achieving filter screen detection. This ensures that the drain valve opens to discharge the pulp only when the filter screen is installed in place, guaranteeing the smooth production of the beverage.

[0015] Preferably, when the magnet is in the first position, the second detection device is in a signal shielding state.

[0016] When the magnet is in the first position, the second detection device is in a signal shielding state, meaning it cannot communicate with the control device. This prevents the second detection device from interfering with the sensing signal of the first detection device, ensuring the effectiveness and reliability of the first detection device's detection. The detection of the receiving cup's position is more accurate, and the drain valve opens to discharge slurry after the receiving cup is in position and closes when the receiving cup is not in position, making it safe and reliable to use.

[0017] Preferably, the machine body is provided with a second control button, and the control device blocks the signal of the second detection device according to the triggering of the second control button.

[0018] By setting a second control button, the control device shields the second detection device to avoid interference with the sensing signal of the first detection device, ensuring the effectiveness and reliability of the first detection device's detection. This allows the first and second detection devices to select one sensing signal, making the detection of the receiving cup more accurate. Furthermore, the drain valve opens to discharge slurry after the receiving cup is in place, and remains closed before the receiving cup is in place, ensuring safe and reliable use.

[0019] Preferably, the machine body has a protrusion located above the cup lid to accommodate the drain valve, and both the first detection device and the second detection device are located inside the protrusion; the magnet is located in the middle of the cup lid.

[0020] The machine body has a protrusion to accommodate the drain valve, protecting the exterior of the drain valve and preventing damage and exposure to the user. The protrusion is located above the cup lid, defining a cavity for placing the receiving cup below it, making efficient use of space. Both the first and second detection devices are located within the protrusion, making efficient use of space. The magnet is located in the middle of the cup lid, enabling it to effectively trigger the first and second detection devices to identify whether the receiving cup and filter screen are placed, ensuring accurate detection.

[0021] Preferably, the machine body has a protrusion located above the cup lid to accommodate the drain valve, the second detection device is located inside the protrusion, the first detection device is located on the side of the cup lid, and the magnet is located on the edge of the cup lid.

[0022] The second detection device is arranged opposite to the first detection device on the cup lid, increasing the distance between the two detection devices and effectively avoiding signal interference. The magnet is located at the edge of the cup lid, which can trigger the second detection device upward to identify whether the filter screen is placed; at the same time, it can trigger the first detection device located on the side to identify whether the receiving cup is placed, ensuring the accuracy of the detection.

[0023] Preferably, the filter screen has an overlap that overlaps the receiving cup, and the edge of the overlap has a downward folded edge to cover the outer side of the cup opening of the receiving cup.

[0024] The filter screen is precisely positioned by overlapping and binding its edges to match the mouth of the receiving cup.

[0025] Preferably, the filter screen is provided with a limiting step to support the cup lid, the limiting step having a supporting surface under the cup lid and a limiting surface surrounding the outer periphery of the cup lid.

[0026] The filter screen has a limiting step to support the cup lid so that the cup lid can be closed stably. The cup lid magnet can be used to detect both the position of the filter screen and the position of the receiving cup, realizing scene switching of corresponding functions and making the food processing machine more versatile.

[0027] Preferably, one of the first detection device and the second detection device is a Hall element or a reed switch.

[0028] Detection is achieved by using Hall elements or reed switches in conjunction with magnets. The detection is accurate and can effectively identify objects. The structure is simple, the assembly is easy, and there is no need for complex wiring, which can also reduce costs. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of a food processing machine according to one embodiment of the present invention.

[0031] Figure 2 This is a schematic diagram of the structure of a food processing machine when the magnet is in the first position according to one embodiment of the present invention.

[0032] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle.

[0033] Figure 4 This is a schematic diagram of the food processing machine when the magnet is in the second position according to one embodiment of the present invention.

[0034] Figure 5 for Figure 4 A magnified structural diagram of section B.

[0035] Figure 6 This is a schematic diagram of the assembly structure of the detection device in one embodiment of the present invention.

[0036] Figure 7 This is a schematic diagram of the cooperation structure between the magnet and the cup lid in one embodiment of the present invention.

[0037] Figure 8 This is a schematic diagram of the structure of a filter screen in one embodiment of the present invention.

[0038] Figure 9 This is a schematic diagram of the assembly structure of the slurry receiving container and the filter screen in one embodiment of the present invention.

[0039] Figure 10 This is a cross-sectional view of the slurry receiving container and filter screen assembled according to one embodiment of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] 10-Main body; 11-Pulping chamber; 111-Agitator blade; 112-Motor; 12-Drain valve; 121-Drain nozzle; 13-First detection device; 14-Second detection device; 15-Water tank; 16-Residual water box; 17-First control button; 18-Protrusion; 19-Mounting bracket; 20-Control device; 21-Control panel; 30-Pulp receiving container; 31-Pulp receiving cup; 32-Cup lid; 321-Pulp inlet; 322-Cover plate; 40-Magnet; 50-Filter screen; 51-Edge overlap; 511-Edge wrapping; 52-Limiting step; 521-Supporting surface; 522-Limiting surface. Detailed Implementation

[0042] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0043] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0044] like Figure 1 As shown, in one embodiment of the present invention, a food processing machine capable of detecting filter screens is provided, including a body 10, a pulping chamber 11 disposed in the body 10, a drain valve 12 with a drain nozzle 121, a control device 20, and a pulp receiving container 30. A stirring blade 111 is disposed in the pulping chamber 11, and a motor 112 is provided in the body 10 to drive the stirring blade 111 to rotate. This food processing machine has a self-cleaning function. A water tank 15 is disposed on the body 10, and a residual water box 16 for receiving residual cleaning water is also provided corresponding to the position of the drain valve 12. The residual water box 16 can be disposed below the pulp receiving container 30 or both can be arranged horizontally. Figure 2 and Figure 3 As shown, the receiving container 30 includes a receiving cup 31 and a lid 32. The lid 32 has a slurry inlet 321 corresponding to the drain nozzle 121. The lid 32 is equipped with a magnet 40. The lid 32 is directly attached to the receiving cup 31, so that the magnet 40 is in a first position. Figure 4 and Figure 5As shown, the food processing machine also includes a filter screen 50, which is detachably attached to the receiving cup 31 and the cup lid 32 is placed on the filter screen 50. This is equivalent to raising the cup lid 32 by a certain distance through the filter screen 50, and the magnet 40 is raised along with the cup lid 32, thus placing the magnet 40 in the second position. The machine body 10 is provided with a first detection device 13 and a second detection device 14 connected to the control device 20. When the magnet 40 is in the first position, the control device 20 controls the drain valve 12 to open according to the signal sensed by the first detection device 13. When the magnet 40 is in the second position, the first detection device 13 is in a signal shielding state, and the control device 20 controls the drain valve 12 to open according to the signal sensed by the second detection device 14.

[0045] This invention provides a food processing machine capable of detecting filter screens. By setting a magnet 40 on the cup lid 32, the magnet 40 has a first position and a second position. Therefore, the position of the magnet 40 can be used to indirectly determine whether the filter screen 50 is placed in the receiving cup 31 and whether the receiving cup 31 is in place. The machine body 10 is provided with a first detection device 13 and a second detection device 14 connected to the control device 20. The magnet 40 selectively triggers the first detection device 13 and the second detection device 14 to sense signals. When the magnet 40 is in the first position, it triggers the first detection device 13 to detect the receiving cup 31 being in place. When the magnet 40 is in the second position, that is, when the receiving cup 31, the filter screen 50, and the cup lid 32 are all present, it triggers the second detection device 14. The first detection device 13 is in a signal shielding state, thereby indirectly detecting the position of the filter screen 50. The magnet 40 on the cup lid 32 identifies whether the receiving cup 31 is in place and whether the filter screen 50 is placed. When the control device 20 receives the sensing signal from the first detection device 13, it controls the drain valve 12 to open, thereby meeting the user's need for making beverages without filtration. This ensures that the slurry is drained only after the receiving cup 31 is in place, preventing slurry from spilling onto the work surface. When the control device 20 receives the sensing signal from the second detection device 14, it controls the drain valve 12 to open, thereby meeting the user's need for making filtered beverages. This prevents beverage making failure due to draining before the filter screen 50 is in place. Therefore, this food processor can still detect the receiving cup 31 after the filter screen 50 is in place, enabling scene switching of corresponding functions, diversifying the functions of the food processor, ensuring the smooth production of different types of beverages, and improving the user experience.

[0046] In addition, by setting a magnet 40 on the cup lid 32 to detect the position of the receiving cup 31, compared with setting a magnet 40 on the receiving cup 31, it is possible to ensure that the cup lid 32 is properly closed during the receiving process, thus avoiding slurry splashing during the discharge process.

[0047] It should be noted that the shielding referred to in the embodiments of the present invention includes at least two methods: the first is circuit breaking, where when the magnet 40 is in the second position, the first detection device 13 can sense the magnet, but the connection circuit between the first detection device and the control device is broken; the second is signal ignoring, where when the magnet is in the second position, the first detection device can sense the magnet, but the control device ignores the sensing signal of the first detection device and does not take any action. Specific embodiments are described in detail below.

[0048] like Figure 1-5 As shown, in a preferred embodiment, the maximum sensing distance of the first detection device 13 is greater than the maximum sensing distance of the second detection device 14. This method enables the magnet 40 to selectively trigger the sensing signals of both the first and second detection devices 13 and 14, eliminating the need to shield the signal of the second detection device 14 and thus preventing interference from the second detection device 14 with the first detection device 13.

[0049] It should be noted that the maximum sensing distance of the first detection device 13 is the distance L1 between the magnet 40 and the first detection device when it is in the first position, and the maximum sensing distance of the second detection device 14 is the distance L2 between the magnet and the second detection device when it is in the second position. Figure 3 and Figure 5 L1 > L2. Preferably, the maximum sensing distance L2 of the second detection device 14 is 10mm. Therefore, when the magnet 40 triggers the first detection device 13 at the first position, the magnet 40 cannot enter the sensing range of the second detection device 14, and thus cannot trigger the second detection device 14. Therefore, even without shielding the signal of the second detection device 14, interference between the second detection device 14 and the sensing signal of the first detection device 13 can be avoided, ensuring the effectiveness and reliability of the detection by the first detection device 13. The detection of the arrival of the slurry cup 31 is more accurate, and the drain valve 12 opens to drain the slurry after the slurry cup 31 is in place, and remains closed when the slurry cup 31 is not in place, making it safe and reliable to use. The use of the maximum sensing distance of the first detection device 13 and the second detection device 14 to differentiate them avoids interference between their signals. The structure is simple and easy to implement.

[0050] like Figure 1 As shown, in a preferred embodiment, the body 10 is provided with a first control button 17, and the control device 20 blocks the signal of the first detection device 13 after the first control button 17 is triggered. Preferably, the first control button 17 is a touch button.

[0051] The machine body 10 is equipped with a first control button 17 for user operation. The user can flexibly trigger the first control button 17 according to the type of beverage to be made or according to the processing progress, so as to shield the signal of the first detection device 13, making operation convenient. When the user triggers the first control button 17, the second detection device 14 detects the filter screen 50, and the whole machine automatically performs the filtering and pulping function, obtaining the beverage that has passed through the filter screen 50 in the pulp receiving cup 31. The user can use it with peace of mind, ensuring the smooth production of beverages and improving the user experience.

[0052] Specifically, the first control button 17 can be implemented in the following two ways:

[0053] Example 1, such as Figure 1-5 As shown, the first control button 17 is a function button for making tofu pudding, coffee, fish soup, or fine soy milk.

[0054] In Example 2, the first control button 17 is a filter button used to perform the filter function.

[0055] The first control button 17 can take multiple forms. Users can trigger the filter button when filtration is needed to obtain the filtered beverage. Alternatively, after selecting a function, users can obtain the corresponding type of filtered beverage. Whether selecting individual filtration or pulping function, the signal of the first detection device 13 can be shielded to ensure accurate detection by the second detection device 14, thereby enabling the filter screen 50 to detect the beverage. This ensures that when preparing the beverage to be filtered, the drain valve 12 will only open to drain the pulp after the filter screen 50 is installed in place, ensuring the smooth preparation of the beverage.

[0056] Of course, the present invention is not limited to setting a first control button on the machine body to block the signal of the first detection device. In fact, in some intelligent food processing machines, it is possible to remotely control the food processing machine to perform the filtering function and block the signal of the first detection device through a mobile phone.

[0057] Combination Figures 1-5 The illustrated embodiments explain the principles of cup detection and filter screen detection in a food processing machine capable of detecting filter screens provided by the present invention:

[0058] like Figure 2 , Figure 3As shown, when the user selects a normal function button that does not require a filter, such as the soy milk or multigrain function button, since a filter 50 is not needed, the lid 32 can directly rest on the receiving cup 31. The magnet 40 is in the first position, and the detection signal of the first detection device 13 is in the open real-time detection state. The magnet 40 is far from the second detection device 14, so the second detection device 14 cannot sense the magnet. Therefore, only the first detection device 13 and the control device 20 conduct signals to detect whether the receiving cup 31 is properly placed. When the lid 32 is in the first position... 2. When the lid is placed on the receiving cup 31 and the receiving cup 31 is in place, the magnet 40 can trigger the first detection device 13, causing the control device 20 to control the drain valve 12 to open and drain the prepared soy milk or grains in the pulping chamber 11 directly into the receiving cup 31. If the receiving cup 31 is not in place, that is, the magnet 40 cannot trigger the first detection device 13, the control device 20 cannot control the drain valve 12 to open, and an alarm signal is generated to remind the user to place the receiving cup 31. The drain valve 12 remains closed, thereby preventing the slurry from being discharged onto the workbench and causing trouble for the user.

[0059] like Figure 4 and Figure 5As shown, when the user selects the first control button to place the filter screen, taking Example 1 as an example, if the user triggers the tofu pudding function button for making tofu pudding, the filter screen 50 and the cup lid 32 are placed on the receiving cup 31 at the same time. The filter screen 50 overlaps the receiving cup 31 and the cup lid 32 is placed on the filter screen 50. This is equivalent to raising the cup lid 32 a certain distance through the filter screen 50. The magnet 40 is raised along with the cup lid 32 by the filter screen 50, thus placing the magnet 40 in the second position. At this time, when the tofu pudding button is triggered, the first detection device 13 is in a signal shielded state. Therefore, only the detection signal of the second detection device 14 is turned on and in real-time detection mode. The second detection device 14 detects whether the receiving cup 31 is placed in place by detecting the presence or absence of the magnetic signal on the cup lid 32. Moreover, regarding the presence or absence of the filter screen 50, since the detection distance of the second detection device 14 is limited, the placement of the filter screen 50 is detected by the distance. Only when the filter screen 50 is placed in place, the magnet 40 is in the second position, which can trigger the second detection device 14. When the filter screen 50 is not placed in place or is not placed in place, the magnet 40 is not raised to the second position and cannot enter the sensing range of the second detection device 14, so it cannot trigger the second detection device to send a signal, thereby realizing the detection of whether the filter screen 50 is placed in place. Therefore, the second detection device 14 can realize both the detection of the receiving cup and the detection of the filter screen. When the second detection device 14 detects the magnet 40, that is, when the receiving cup 31 and the filter screen 50 are in place, the control device 20 controls the drain valve 12 to open and drain the slurry. The slurry prepared in the slurry chamber 11 is then drained into the receiving cup 31 after passing through the filter screen 50. This allows the slurry to be filtered and then mixed with the glucono delta-lactone placed in the receiving cup in advance, thus successfully preparing tofu pudding. When the second detection device 14 does not detect the magnet 40, the drain valve 12 remains closed and generates an alarm signal to remind the user to place the receiving cup 31 and the filter screen 50.

[0060] When the first control button uses the filter button provided in Embodiment 2, the principle of the filter detection is basically the same as described above. The difference is that, taking the making of tofu as an example: after the user selects the tofu button, the machine performs the crushing process. When the crushing is finished, the user triggers the filter button alone. At this time, the first detection device 13 is in a signal shielding state when the filter button is triggered. Therefore, only the detection signal of the second detection device 14 is turned on and is in a real-time detection state. The second detection device 14 detects whether the receiving cup 31 is placed in place by the presence or absence of the signal of the magnet 40 on the cup lid 32. Moreover, as for whether the filter 50 is placed, since the detection distance of the second detection device 14 is limited, the placement of the filter 50 is detected by the distance of the detection. Only when the filter 50 is placed in place, the magnet 40 is in the second position and can trigger the second detection device 14. When the filter 50 is not placed in place or is not placed in place, the magnet 40 is not raised to the second position and cannot enter the sensing range of the second detection device 14. Therefore, the second detection device 14 cannot be triggered to send a signal, thereby realizing the detection of whether the filter 50 is placed in place.

[0061] It should be noted that, in order to avoid interference between the second detection device 14 and the first detection device 13 in this invention, in addition to differentiating the maximum sensing distance between the two in the above-described embodiment, other methods can also be used, such as:

[0062] In another preferred embodiment, when the magnet 40 is in the first position, the second detection device 14 is in a signal shielding state.

[0063] Specifically, the signal shielding method for the second detection device 14 can adopt, but is not limited to, the following two embodiments:

[0064] Example 1: The signal of the second detection device 14 is shielded by cutting off the circuit connection between the second detection device and the control device;

[0065] Specifically, the machine body is equipped with a second control button, and the control device blocks the signal from the second detection device based on the triggering of the second control button. The second control button can be a function button for making regular soy milk or multigrain soy milk.

[0066] In Example 2, the signal of the second detection device 14 can be shielded by setting the control device to ignore the signal of the second detection device.

[0067] In this implementation, when the magnet 40 is in the first position, the second detection device 14 is in a signal shielding state, that is, it cannot communicate with the control device 20. This avoids the second detection device 14 interfering with the sensing signal of the first detection device 13, ensuring the effectiveness and reliability of the detection by the first detection device 13. The detection of the arrival of the slurry cup 31 is more accurate. Moreover, the drain valve 12 opens to drain the slurry after the slurry cup 31 is in place, and closes when the slurry cup 31 is not in place, making it safe and reliable to use.

[0068] Similarly, in embodiments of the present invention, the signal shielding method for the first detection device 13 can be, but is not limited to, the following two:

[0069] In Example 1, the signal of the first detection device 14 is shielded by cutting off the circuit connection between the first detection device and the control device;

[0070] In Example 2, the signal of the first detection device 14 can be shielded by setting the control device to ignore the signal of the second detection device.

[0071] In this implementation, when the magnet 40 is in the second position, the first detection device 13 is in a signal shielding state, that is, it cannot communicate with the control device 20, thus avoiding interference between the first detection device 13 and the sensing signal of the second detection device 14, ensuring the effectiveness and reliability of the detection by the second detection device 14, and making the detection of the filter screen 50 more accurate.

[0072] The present invention does not limit the placement of the first detection device 13 and the second detection device 14, for example:

[0073] exist Figure 1-5 In the preferred embodiment shown, the body 10 is provided with a protrusion 18 located above the cup lid 32 to accommodate the drain valve 12. The first detection device 13 and the second detection device 14 are both located within the protrusion 18. The control device 20 includes a control plate 21 located within the protrusion 18. The magnet 40 is located in the middle of the cup lid 32.

[0074] like Figure 6 As shown, the food processing machine includes a mounting bracket 19 fixed to the machine body 10. The first detection device 13 and the second detection device 14 are fixed to the machine body 10 through the mounting bracket 19. Specifically, during assembly, the first detection device 13 and the second detection device 14 are respectively installed on the mounting bracket 19 and assembled into a whole. Then, the mounting bracket 19 is fixed to the machine body 10 to complete the installation.

[0075] Preferably, an installation groove is provided in the body 10 to accommodate the installation bracket 19, thereby limiting the installation bracket 19, ensuring its stability, and making the first detection device 13 and the second detection device 14 reliably fixed, thus ensuring the effectiveness of the detection.

[0076] The body 10 has a protrusion to accommodate the drain valve 12, which protects the exterior of the drain valve 12 and prevents it from being damaged or exposed to the user. The protrusion is located above the cup cover 32, that is, the cavity for placing the receiving cup 31 is defined below the protrusion, making reasonable use of space. The first detection device 13 and the second detection device 14 are both located inside the protrusion, making reasonable use of space. The magnet 40 is located in the middle of the cup cover 32, so that the magnet 40 can effectively trigger the first detection device 13 and the second detection device 14 to identify whether the receiving cup 31 and the filter screen 50 are placed, ensuring the accuracy of the detection.

[0077] like Figure 7 As shown, in a preferred embodiment, the magnet 40 is fixed to the middle of the cup lid 32 by heat fusion through the cover plate 322.

[0078] In another preferred embodiment, the body 10 is provided with a protrusion 18 located above the cup lid 32 to accommodate the drain valve 12, the second detection device 14 is located inside the protrusion 18, the first detection device 13 is located on the side of the cup lid 32, and the magnet 40 is located at the edge of the cup lid 32.

[0079] The second detection device 14 and the first detection device 13 are arranged opposite to each other on the cup lid 32, increasing the distance between the second detection device 14 and the first detection device 13 and effectively avoiding interference between them. The magnet 40 is located at the edge of the cup lid 32, which can trigger the second detection device 14 upward to identify whether the receiving cup and the filter screen 50 are placed; at the same time, the magnet can approach the first detection device 13 located on the side and trigger the first detection device 13 to the side to identify whether the receiving cup 31 is placed, ensuring the accuracy of the detection.

[0080] This invention does not limit the structure of the filter screen 50. In a preferred implementation, such as... Figure 8 As shown, the filter screen 50 has an overlap 51 that overlaps the receiving cup 31, and the edge of the overlap 51 has a downward folded edge 511 to wrap around the outer side of the cup opening of the receiving cup 31.

[0081] The filter screen 50 is precisely positioned by overlapping the edge 51 and wrapping the edge 511 with the mouth of the receiving cup 31.

[0082] Preferred, such as Figure 8 As shown, the filter screen 50 is provided with a limiting step 52 to support the cup lid 32, such as Figure 9 and Figure 10 As shown, the limiting step 52 has a supporting surface 521 that supports the bottom of the cup lid 32 and a limiting surface 522 that surrounds the outer periphery of the cup lid 32.

[0083] The filter screen 50 is provided with a limiting step to support the cup lid 32 so that the cup lid 32 can be stably closed. The magnet 40 of the cup lid 32 can be used to detect the position of both the filter screen 50 and the receiving cup 31, realizing scene switching of corresponding functions and making the food processing machine more versatile.

[0084] The present invention does not limit the specific structure of the first detection device 13 and the second detection device 14. One of the first detection device 13 and the second detection device 14 is a Hall element or a reed switch.

[0085] In Example 1, the first detection device 13 is a Hall element; the second detection device 14 is a reed switch.

[0086] In Example 2, the first detection device 13 is a reed switch; the second detection device 14 is a Hall element.

[0087] In Example 3, both the first detection device 13 and the second detection device 14 are reed switches.

[0088] In Example 4, both the first detection device 13 and the second detection device 14 are Hall elements.

[0089] The detection is achieved by using a Hall element or reed switch in conjunction with a magnet 40. The detection is accurate and can effectively identify the problem. The structure is simple, the assembly is easy, and there is no need for complicated wiring, which can also reduce costs.

[0090] More preferably, when using a Hall element, a linear Hall element is specifically selected, which has a minimum sensing distance and a maximum sensing distance, forming a sensing range. When the magnet distance exceeds the maximum sensing distance or is less than the minimum sensing distance, the linear Hall element cannot sense a signal.

[0091] For example, in Embodiment 2, the second detection device 14 is a linear Hall element. Only when the filter screen is placed in place, the linear distance between the magnet and the linear Hall element is at most L = 10 mm and at least L = 8 mm. Therefore, when the filter screen is not placed or is not placed in place, an alarm signal is generated due to the detection distance being too large or too small, thereby detecting the presence or absence of the filter screen.

[0092] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0093] In this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0094] The technical solutions protected by this invention are not limited to the above embodiments. It should be noted that any combination of the technical solutions of any embodiment with one or more other embodiments is within the protection scope of this invention. Although the invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this invention are within the scope of protection claimed by this invention.

Claims

1. A food processing machine capable of detecting filter screens, comprising a body, a pulping chamber disposed in the body, a drain valve with a drain nozzle, a control device, and a pulp receiving container, wherein the pulp receiving container comprises a pulp receiving cup and a cup lid, the cup lid having a pulp inlet corresponding to the drain nozzle, characterized in that, The cup lid is equipped with a magnet, and the cup lid overlaps the receiving cup, placing the magnet in a first position. The food processing machine also includes a filter screen, which overlaps the receiving cup and the cup lid is fitted onto the filter screen, placing the magnet in a second position. The machine body is equipped with a first detection device and a second detection device connected to a control device. When the magnet is in the first position, the control device controls the drain valve to open based on the signal sensed by the first detection device. When the magnet is in the second position, the first detection device is in a signal shielding state, and the control device controls the drain valve to open based on the signal sensed by the second detection device.

2. The food processing machine capable of detecting filter screens according to claim 1, characterized in that, The maximum sensing distance of the first detection device is greater than the maximum sensing distance of the second detection device.

3. A food processing machine capable of detecting filter screens according to claim 1, characterized in that, The machine body is equipped with a first control button, and the control device blocks the signal of the first detection device according to the triggering of the first control button.

4. A food processing machine capable of detecting filter screens according to claim 3, characterized in that, The first control button is a filter button for performing the filtration function or a function button for making tofu pudding, coffee, or fine soy milk.

5. A food processing machine capable of detecting filter screens according to claim 1, characterized in that, When the magnet is in the first position, the second detection device is in a signal shielding state.

6. A food processing machine capable of detecting filter screens according to claim 5, characterized in that, The machine body is equipped with a second control button, and the control device blocks the signal of the second detection device according to the triggering of the second control button.

7. A food processing machine capable of detecting filter screens according to claim 1, characterized in that, The body has a protrusion located above the cup lid to accommodate the drain valve, and the first detection device and the second detection device are both located inside the protrusion; the magnet is located in the middle of the cup lid.

8. A food processing machine capable of detecting filter screens according to claim 1, characterized in that, The body has a protrusion located above the cup lid to accommodate the drain valve, the second detection device is located inside the protrusion, and the first detection device is located on the side of the cup lid; the magnet is located at the edge of the cup lid.

9. A food processing machine capable of detecting filter screens according to claim 1, characterized in that, The filter screen has an overlap edge that overlaps the receiving cup, and the edge of the overlap edge is provided with a downward folded edge to wrap around the outer side of the cup opening of the receiving cup; And / or, the filter screen is provided with a limiting step to support the cup lid, the limiting step having a supporting surface supporting the cup lid below and a limiting surface surrounding the outer periphery of the cup lid.

10. A food processing machine capable of detecting filter screens according to claim 1, characterized in that, One of the first detection device and the second detection device is a Hall element or a reed switch.

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