A food processor that doesn't require hand washing

Abstract

The present invention provides a food processor that does not require hand washing, comprising a main unit, a processing chamber, and a motor. A pulverizing blade driven by the motor is disposed within the processing chamber. The processing chamber comprises an upper chamber body and a lower chamber body, and a connecting section located between the upper and lower chamber bodies. The lower chamber body is fixed to the main unit, the upper chamber body is detachably disposed relative to the lower chamber body, and the connecting section is over-connected to the upper chamber body, with the connecting section at least partially protruding into the processing chamber relative to the lower chamber body. Water, which originally flowed upward along the side wall of the lower chamber body under the influence of the pulverizing blade, is tilted toward the rotation center of the pulverizing blade at the connecting section due to the protruding connecting section and continues to flow upward under the stirring of the pulverizing blade, thereby increasing the water flow's upward stroke in flushing the upper chamber body and the intensity of the water flow in flushing the upper chamber body's top wall, thereby automatically cleaning the upper chamber 360 degrees without blind spots.

Description

Technical Field

[0001] The invention belongs to the field of food processing machines, and in particular relates to a food processing machine which does not require hand washing and can be cleaned thoroughly and has high crushing efficiency. Background Art

[0002] Existing food processors generally include a main unit and a processing chamber mounted on the main unit. The main unit is equipped with a motor that drives a pulverizing blade within the processing chamber to process the material. A cup lid is located above the processing chamber. Patent application number CN201711088669.0 discloses a self-cleaning food processor comprising a container, a lid, and a pulverizing device. A nozzle is located on the inner sidewall of the lid, spraying water toward the lid. This nozzle allows for thorough cleaning of the difficult-to-clean lid. However, the water jet only effectively flushes the lid, failing to optimize the cleaning of the processing chamber. Furthermore, this solution fails to optimize overall cleaning while also addressing the pulverizing issue. In existing food processors, particularly those with deep processing chambers, the pulverizing blade drives the water flow to self-clean the processing chamber. The water flow decreases in force as it moves upward along the inner sidewalls of the processing chamber, making it difficult to thoroughly clean the upper portion of the processing chamber, resulting in suboptimal cleaning results. Furthermore, the extremely low linear velocity of the blade in the middle of the processing chamber can easily cause residual slurry to adhere to the upper surface of the pulverizing blade, making it difficult to thoroughly clean. Furthermore, the cup lid is far from the pulverizer, preventing it from being rinsed away by water. Increasing the pulverizer's speed for cleaning increases noise and causes water to overflow from the lid's exhaust valve, shortening the motor's lifespan. Furthermore, the lid is difficult to clean thoroughly with water. Consequently, existing food processors are prone to stubborn stains in the processing chamber, which cannot be fully self-cleaned and requires manual cleaning by the user.

[0003] Existing food processors, especially those that break food walls, present another challenge. The processing chamber must meet both the basic pulping capacity requirements to enhance the user experience and the performance requirements for fineness and uniformity of the material within the processing chamber. If the processing chamber is too large, the particle size of the crushed material will be suboptimal, exacerbating cleaning issues. If the processing chamber is too small, it will be difficult to simultaneously meet the pulping capacity and slurry uniformity requirements. Therefore, how to achieve thorough cleaning while improving the crushing efficiency and crushing rate, while ensuring the pulping capacity and high slurry uniformity, is an urgent problem to be solved. Summary of the Invention

[0004] The object of the present invention is to provide a food processing machine which has the advantages of thorough automatic cleaning, high crushing efficiency, uniform slurry and delicate taste.

[0005] In order to solve the above technical problems, the present invention provides a food processor that does not require hand washing, including a main unit, a processing chamber and a motor, wherein a crushing knife driven by the motor is provided in the processing chamber, wherein the processing chamber includes an upper cavity and a lower cavity, and a connecting section located between the upper cavity and the lower cavity, the lower cavity is fixed to the main unit, the upper cavity is detachable relative to the lower cavity, the connecting section is excessively connected to the upper cavity, and the connecting section protrudes at least partially into the processing cavity relative to the lower cavity.

[0006] Furthermore, the connecting section includes an annular sealing member, which forms a part of the inner side wall of the processing chamber.

[0007] Furthermore, the inner side wall of the upper cavity is inclined, and the inner side wall of the connecting section is inclined in the same direction as the inner side wall of the upper cavity; or, the inner side wall of the connecting section is vertically arranged; or, the inner side wall of the lower cavity is inclined, and the inner side wall of the connecting section is inclined in the same direction as the inner side wall of the lower cavity.

[0008] Furthermore, the top of the crushing knife is not higher than the connecting section, and the connecting section is fixed at the lower end of the upper cavity, and a step is formed at the connection between the connecting section and the lower cavity.

[0009] Furthermore, the lower port of the upper cavity is provided with an annular bottom cover, and the sealing member is installed on the bottom cover.

[0010] Furthermore, the lower port of the upper cavity is further provided with an annular support frame, the bottom cover is fixedly connected to the support frame and at least a portion of the sealing member is clamped and fixed between the lower port of the upper cavity and the bottom cover.

[0011] Furthermore, a support frame is arranged around the circumference of the lower end of the lower cavity, a positioning structure is provided on the support frame, and a limiting structure cooperating with the positioning structure is provided on the upper cavity.

[0012] Furthermore, the sealing member is provided with a sealing end surface, the sealing end surface is provided with a sealing rib, and the sealing end surface is sealed with the lower port of the upper cavity.

[0013] Furthermore, the sealing member is provided with an opening and an elastic deformation space communicating with the opening, and the upper port of the lower cavity at least partially abuts against the sealing member to compress the elastic deformation space.

[0014] Furthermore, the total volume of the upper cavity and the connecting section is not less than the volume of the lower cavity.

[0015] The beneficial effects of the present invention are:

[0016] 1. A connecting section is provided between the upper cavity and the lower cavity, and the upper cavity and the lower cavity are detachably connected at the connecting section. At the same time, the connection between the upper and lower cavities is sealed by the connecting section. The connecting section is excessively connected to the upper cavity. The connecting section is at least partially protruded into the processing cavity relative to the lower cavity, guiding the cleaning water flow to change the direction of the water flow at the protruding connecting section. The water flow originally running upward along the side wall of the lower cavity driven by the crushing knife is inclined toward the direction of the rotation center of the crushing knife at the connecting section along the protruding connecting section and continues to run upward under the stirring of the crushing knife, thereby increasing the stroke of the water flow to flush the upper cavity upward and the intensity of flushing the top wall of the upper cavity, so as to automatically clean the upper cavity 360° without dead angles.

[0017] During the crushing and pulping process, the connecting section, which at least partially protrudes into the processing chamber, can effectively compress the material thrown to the side wall of the lower chamber by the crushing blade under the action of centrifugal force downward and toward the crushing blade, and focus the solid material in the solid-liquid mixture in the lower chamber for crushing and refinement. At the same time, it can also suppress the small volume of concentrated slurry accumulated in the lower chamber to fully roll and boil. The volume of the slurry produced by adding water is based on the volume of the lower chamber, and is supported by the upper chamber, thereby achieving small-space crushing and large-volume pulping, while making the slurry fine and uniform. Especially when making low-concentration slurries and fruit and vegetable juice drinks, the protruding connecting section can further refine the particles of hard materials such as carrots pulverized by the auxiliary crushing blade, and the granularity of the produced fruit and vegetable drinks is further reduced.

[0018] 2. The seal forms a part of the inner wall of the processing chamber, thereby participating in and cooperating with the crushing knife's pulping, automatic cleaning and other actions. The annular seal protrudes circumferentially from the side wall of the lower cavity, cooperating with the spoiler ribs in the processing chamber to hinder the tendency of the disturbed water flow or slurry to fall back downward, thereby balancing the amount of slurry in the upper and lower cavities during pulping, and the water distribution during cleaning. The slurry is uniform, the cleaning water flow is fully disturbed, and the cleaning effect on the inner wall of the processing chamber is further increased.

[0019] 3. The inclination direction of the connecting section can be set according to the compensation of product properties. The inclination direction of the connecting section is consistent with the upper cavity, which is more inclined to drain and clean the upper cavity; the connecting section is set vertically, which further highlights and optimizes the sealing performance between the upper cavity and the lower cavity, especially the disassembly point of the upper and lower cavities, that is, the upper end or lower end of the connecting section, to fully ensure that there is no leakage of slurry; of course, when the inclination direction of the connecting section is consistent with the lower cavity, the circulation speed and circulation effect of the water flow in the upper cavity and the lower cavity are further optimized. Of course, compared with the case where the inclination direction of the connecting section is consistent with the upper cavity, the average retention amount and retention time of the water flow in the upper cavity will be weakened accordingly, but due to the increase in the force of the water flow pressing the blade downward, it has a better cleaning effect on the middle part of the upper surface of the crushing knife.

[0020] 4. The top of the crushing blade should not be higher than the connection section to ensure the effectiveness of the connection section in guiding the cleaning water flow. Driven by the crushing blade, the water flow first touches the side wall of the lower cavity and runs upward before triggering the guidance of the connection section. Otherwise, the water flow will directly pass over the connection section into the upper cavity, and the cleaning strength of the side wall and the top wall of the upper cavity cannot be guaranteed. In addition, it is also necessary to ensure that after the user removes the upper cavity, the lower cavity has sufficient space to accommodate solid materials and the depth of the entire processing cavity after the upper and lower cavities are superimposed meets the requirements of fine crushing and thorough cleaning. The lower port of the upper cavity is provided with an annular bottom cover, and the seal is installed on the bottom cover. The bottom cover is then fixed by a support frame, so that the seal is clamped and fixed between the lower port of the upper cavity and the bottom cover. The seal can be removed together with the upper cavity to avoid the accumulation of residual material at the upper port when the lower cavity is discharged, which affects the flatness of the sealing surface of the seal when the upper and lower cavities are installed, and to avoid water leakage caused by user operation errors.

[0021] 5. During production and assembly of the food processor, the seal is first fixed to the bottom cover. The support frame is then installed on the lower end of the upper chamber. The seal, along with the bottom cover, is then installed at the lower end of the upper chamber and fixedly connected to the support frame. This prevents the seal from shifting and sealing failure. The seal is easy to install, providing excellent strength at the connection point of the entire processing chamber. This also simplifies installation and prevents leaks caused by installation errors. Furthermore, the installation of the seal simplifies the limiting structure between the upper chamber and the support frame, preventing food from being trapped or cleaning in blind spots.

[0022] 6. The seal is provided with a sealing end face, on which a sealing rib is provided. The sealing end face is sealed with the lower port of the upper cavity. This arrangement not only ensures the sealing performance, but also fully simplifies the structure of the upper port of the lower cavity, and simplifies the user's installation operation, providing the user with better installation guidance and feel.

[0023] 7. The seal is provided with an elastic deformation space, which can effectively offset the problem of uneven hardness of the seal, as well as the manufacturing tolerance of the upper cavity and the assembly tolerance of the upper and lower cavities causing the decline in sealing performance. In addition, the setting of the elastic deformation space greatly optimizes the user's installation feel. The elastic deformation space deforms, thereby reducing the friction resistance between the seal and the upper port of the lower cavity during the installation process.

[0024] 8. The total volume of the upper cavity and the connecting section is not less than the volume of the lower cavity. This setting can maximize the balance between the cleaning advantage of the connecting section and the advantage of fully crushing the solid materials in the solid-liquid mixture, so that the cleaning and crushing performance of the food processor are effectively improved. Ensure the effectiveness of the connecting section in guiding the cleaning water flow. Driven by the crushing knife, the water flow touches the side wall of the lower cavity and quickly runs upward to trigger the guidance of the connecting section. Otherwise, the cleaning strength of the side wall and the top wall of the upper cavity cannot be guaranteed. In addition, it also ensures that after the user removes the upper cavity, the lower cavity has sufficient space to accommodate solid materials and the depth of the entire processing cavity after the upper and lower cavities are superimposed meets the requirements of fine crushing and thorough cleaning. And based on this, during the slurrying or cleaning process, when the liquid level naturally submerges the connecting section, the stirring of the crushing knife can also intensify the flushing of the connecting section by the cleaning water. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of the food processing machine of the present invention.

[0027] Figure 2 This is an exploded view of the food processing machine of the present invention.

[0028] Figure 3 This is a schematic diagram of the installation structure of the processing chamber of the food processing machine described in the present invention.

[0029] Figure 4 This is a schematic diagram of the cleaning cycle in the processing chamber of the food processing machine according to the present invention.

[0030] Figure 5 for Figure 4 A partial enlarged view of middle A.

[0031] Figure 6 This is an exploded view of the upper cavity assembly.

[0032] Figure 7 Schematic diagram of the coordination structure between the upper cavity and the support frame.

[0033] Figure 8 It is a partial cross-sectional view of the processing cavity.

[0034] The names of the components in the figure are as follows:

[0035] 100. Main unit; 101. Motor; 102. Water tank; 103. Valve assembly; 104. Slurry collecting cup; 105. Residual water box; 106. Locking device;

[0036] 200, processing chamber; 201, crushing knife;

[0037] 300, upper cavity; 301, spoiler rib; 302, limiting structure; 303, limiting step; 304, feeding port; 305, exhaust plug;

[0038] 400, lower cavity; 401, upper screw-on structure;

[0039] 500, connecting section; 501, sealing member; 502, sealing end surface; 503, opening; 504, elastic deformation space; 505, guide portion; 506, extension portion; 507, sealing end portion; 508, sealing rib; 509, first limiting rib; 510, second limiting rib; 511, third limiting rib;

[0040] 600, sealing member fixing device; 601, support frame; 602, bottom cover; 603, positioning structure; 604, mounting edge; 605, upper edge; 606, lower edge; 607, limiting groove; 608, limiting rib; 609, lower screw-on structure; 610, water leakage hole; 611, annular side wall; 612, positioning boss; 613, bottom cover side wall; 614, slot; 615, reinforcing rib; 616, locking structure. DETAILED DESCRIPTION

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0042] like Figures 1 to 8As shown, the present invention provides a food processor that does not require hand washing, including a main unit 100, a processing chamber 200 and a motor 101. A crushing knife 201 driven by the motor is provided in the processing chamber. The main unit is provided with a water tank 102, which is connected to the processing chamber through a pipeline. In this embodiment, the motor is arranged in the main unit, and the processing chamber includes an upper cavity 300 and a lower cavity 400, and a connecting section 500 located between the upper cavity and the lower cavity. The lower cavity 400 is fixed to the main unit and is at least partially sunken relative to the top of the main unit. The upper cavity is detachable relative to the lower cavity, and the upper cavity 300 is installed in an inverted manner at the upper port of the lower cavity. The connecting section 500 is excessively connected to the upper cavity 300. The connecting section 500 is at least partially protruded into the processing cavity relative to the lower cavity. The connecting section 500 seals the connection between the upper and lower cavities and guides the cleaning water flow to change the direction of the water flow at the protruding connecting section. The water flow that originally ran upward along the side wall of the lower cavity under the drive of the crushing knife 201 is inclined toward the direction of the rotation center of the crushing knife at the connecting section along the protruding connecting section and continues to run upward under the stirring of the crushing knife, thereby increasing the stroke of the water flow to flush the upper cavity upward and the intensity of flushing the top wall of the upper cavity, so as to automatically clean the upper cavity 360° without dead angles. The lower cavity 400 is provided with a slurry discharge port and a valve body assembly 103 connected to the slurry discharge port. The valve body assembly is connected to the water tank 102 through a water inlet pipe. The water in the water tank enters the valve body assembly through the water inlet pipe and enters the processing cavity through the slurry discharge port. After the slurrying is completed, the slurry is discharged to the slurry receiving cup 104 through the valve body assembly, and the cleaning waste water is discharged to the residual water box 105.

[0043] During the crushing and pulping process, the connecting section, which at least partially protrudes into the processing chamber, can effectively compress the material thrown by the crushing blade to the side wall of the lower chamber under the action of centrifugal force downward and toward the crushing blade, and focus the solid material in the solid-liquid mixture in the lower chamber for crushing and refinement. At the same time, it can also suppress the small volume of concentrated slurry accumulated in the lower chamber to fully tumble and boil. The volume of the slurry produced by adding water is based on the volume of the lower chamber, and with the support of the upper chamber, it can achieve small-space crushing and large-volume pulping, while making the slurry fine and uniform. Especially when producing low-concentration slurries and fruit and vegetable juice drinks, the protruding connecting section can further refine the crushed particles of hard materials such as carrots, further reducing the graininess of the produced fruit and vegetable drinks.

[0044] like Figure 3 and Figure 4As shown, the connecting section 500 includes an annular seal 501, which forms a part of the inner side wall of the processing chamber, thereby participating in and cooperating with the crushing knife's pulping, automatic cleaning and other actions. The annular seal 501 protrudes circumferentially from the side wall of the lower cavity. In this embodiment, the side walls of the upper cavity 300 and the lower cavity 400 are both provided with spoiler ribs 301. The connecting section cooperates with the spoiler ribs in the processing chamber 200 to hinder the tendency of the disturbed water flow or slurry to fall back downward, thereby balancing the amount of slurry in the upper cavity 300 and the lower cavity 400 during pulping, the water distribution during cleaning, the uniform slurry, the sufficient disturbance of the cleaning water flow, and the further increase of the cleaning force on the inner wall of the processing chamber.

[0045] The inclination direction of the connecting section 500 can be set according to product attribute compensation. The inclination direction of the connecting section 500 is consistent with the upper cavity, which is more inclined to drain and clean the upper cavity; the connecting section 500 is vertically arranged, which further highlights and optimizes the sealing performance between the upper cavity and the lower cavity, especially at the disassembly point of the upper and lower cavities, that is, the upper end or lower end of the connecting section, to fully ensure that there is no leakage of slurry; when the inclination direction of the connecting section 500 is consistent with the lower cavity, the circulation speed and circulation effect of the water flow in the upper cavity 300 and the lower cavity 400 are further optimized. Since the force of the water flow pressing the blade downward increases, it has a better cleaning effect on the middle part of the upper surface of the crushing knife 201. In this embodiment, the inner wall of the upper cavity 300 is inclined, and the inner wall of the lower cavity 400 is also inclined and in the opposite direction to the inner wall of the upper cavity. The inner diameter of the upper cavity is radially reduced, so that the inner diameter of the processing cavity is the largest at the connecting section. The inner wall of the connecting section is consistent with the inclination direction of the inner wall of the upper cavity, so that the inner diameter of the connecting section 500 is at least partially reduced from bottom to top.

[0046] The top of the crushing knife 201 is not higher than the setting of the connecting section 500. The connecting section 500 is fixed at the lower port of the upper cavity. The connection between the connecting section 500 and the upper end of the side wall of the lower cavity 400 forms a step, which effectively guides the water flow and effectively suppresses the material. The volume of the lower cavity 400 is not greater than the sum of the volumes of the upper cavity 300 and the connecting section. The connecting section is set at a specific height of the processing cavity. The distance between the connecting section 500 and the bottom wall of the lower cavity is not greater than the distance between the connecting section and the top wall of the upper cavity, and the top of the crushing knife 201 is not higher than the setting of the connecting section. Based on this, during the nominal slurrying or cleaning process, when the liquid level under the natural state submerges the connecting section 500, the stirring of the crushing knife can also intensify the flushing of the connecting section by the cleaning water. In this embodiment, if Figure 4As shown, the height between the connecting section 500 and the bottom wall of the processing chamber 200 is h, and the inner height of the processing chamber 200 is H, 1 / 5≤h / H≤4 / 5. The distance between the connecting section 500 and the top of the crushing blade 201 is h1, 1 / 5≤h1 / h≤4 / 5. Preferably, 10mm≤h1≤100mm. In this embodiment, h is 64mm, H is 157mm, and h1 is 45mm. This configuration maximizes the balance between the cleaning and crushing advantages of the connecting section, effectively improving both the cleaning and crushing performance of the food processor. To ensure the effectiveness of the connecting section in guiding the cleaning water flow, the water flow, driven by the crushing blade, first touches the side wall of the lower chamber and flows upward, triggering the guidance of the connecting section 500. Otherwise, the water flow will directly pass over the connecting section into the upper chamber, thereby failing to ensure the cleaning strength of the upper chamber side walls and the upper chamber top wall. In addition, it is also necessary to ensure that after the user disassembles the upper cavity, the lower cavity 400 has sufficient space to accommodate solid materials and the depth of the entire processing cavity after the upper cavity 300 and the lower cavity 400 are stacked up and down meets the requirements of fine crushing and thorough cleaning.

[0047] like Figure 5As shown, the sealing member 501 is provided with a guide portion 505, which guides the water flow stirred by the stirring blade to be inclined upward to clean the upper cavity 300. The guide portion 505 is at least partially protruded into the processing chamber. The guide portion 505 includes an inclined guide surface, the inclination direction of the guide surface is consistent with the inclination direction of the upper cavity 300, and the connecting section 500 and the upper end of the side wall of the lower cavity 400 form a step, and the guide surface is the step surface of the step. The guide portion extends upward to form an extension portion 506, and the angle between the guide portion 505 and the vertical surface is greater than the angle between the extension portion 506 and the vertical surface. At least part of the guide portion and / or the extension portion forms a part of the inner side wall of the processing chamber. In this embodiment, the extension portion 506 and the guide portion 505 together form a portion of the inner wall of the processing chamber 200. The extension portion 506 can further extend the trend of the water flow changed by the guide portion to continue to run upward, while correcting the deviation in the tilt direction of the water flow caused by the high-speed rotation of the crushing knife and intermittent pauses or reversals, thereby helping the water flow to reach the top wall of the upper cavity 300 more quickly, and vigorously flush the upper cavity to prevent stubborn residual slurry or material particles from adhering. The sealing member 501 also includes a sealing end portion 507. The extension portion is laterally bent and extended outward to form the sealing end portion, and the sealing end portion 507 is sealed against the lower end of the upper cavity 300. In this embodiment, the sealing end portion is the sealing end face 502, which is provided with a plurality of annular sealing ribs 508, and the sealing end portion is sealed with the lower end of the upper cavity. In this embodiment, when the upper cavity is installed in place, the distance between the guide portion of the abutting portion of the upper port of the lower cavity, the inner wall of the lower cavity and the guide portion protruding into the processing cavity is T, 1mm≤T≤5mm, preferably T is 2mm. This setting optimizes the guidance of the cleaning water flow by the connecting section, and at the same time can effectively ensure the suppression of the material by the connecting section during crushing and pulping, so that the material is focused on the lower cavity for crushing, so that the cleaning performance and crushing performance achieve an optimal balance.

[0048] The seal is provided with an opening 503 and an elastic deformation space 504 connected to the opening. The upper end of the lower cavity 400 at least partially abuts the seal 501 to compress the elastic deformation space 504, which can effectively offset the problem of uneven hardness of the seal, as well as the manufacturing tolerance of the upper cavity and the assembly tolerance of the upper and lower cavities. In addition, the provision of the elastic deformation space greatly optimizes the user's installation feel. The elastic deformation space deforms to reduce the friction resistance between the seal and the upper end of the lower cavity during installation. Specifically, the guide portion 505, the extension portion 506 and the sealing end portion 507 are combined to form an elastic deformation space 504 with an annular opening, and the opening is located on the outside of the seal. The seal also includes a first limiting rib 509 provided at the sealing end, and a second limiting rib 510 provided at the guide portion. Specifically, the first limiting rib 509 is a limiting protrusion extending upward along the sealing end near the opening end, and the second limiting rib 510 is a limiting protrusion extending upward along the guide portion near the opening end. These ribs ensure that the seal does not shift upward or downward or partially fail to seal, thereby ensuring balanced compression between the seal and the upper and lower cavities, avoiding uneven compression of the seal, which could lead to uneven pressure on the seal and cause liquid leakage. A third limiting rib 511 is provided within the elastic deformation space. The elastic deformation space includes an installation space above the third limiting rib 511 and a deformation space below the third limiting rib. This prevents installation displacement from causing insufficient elastic deformation space margin, further ensuring sealing performance.

[0049] The processing chamber includes a seal fixing device 600 disposed at the lower end of the upper chamber body. The seal fixing device at least partially extends into the opening 503 to clamp and secure the seal at the lower end of the upper chamber body via the sealing end. The seal is at least partially exposed in the processing chamber, diverting the slurry and effectively preventing material residue or slurry from entering the sealing end surface. In this embodiment, the seal fixing device includes a support frame 601 and a bottom cover 602 disposed below the support frame. Specifically, the lower end of the upper chamber body is provided with an annular bottom cover, and the bottom cover 602 is provided with a mounting edge 604. The seal is mounted on the mounting edge through an annular opening. The lower end of the upper chamber body 300 is also provided with an annular support frame. The support frame 601 is located above the bottom cover, and the support frame is provided with screw posts and screw holes. The bottom cover 602 is fixedly connected to the support frame 601 by screws, and the seal is at least partially clamped and secured between the lower end of the upper chamber body and the bottom cover. The seal can be removed together with the upper cavity to avoid the accumulation of residual material at the upper port when the lower cavity is discharged, which affects the flatness of the sealing surface of the seal when the upper and lower cavities are installed, and avoids water leakage caused by user operation errors. The support frame 601 is set around the lower end of the lower cavity, such as Figure 7As shown, a positioning structure 603 is provided on the support frame, and a limiting structure 302 that cooperates with the positioning structure is provided on the upper cavity. In this embodiment, the positioning structure 603 is a plurality of protruding positioning posts, and the limiting structure 302 is a positioning notch that is circumferentially arranged on the periphery of the lower end of the upper cavity and cooperates with the positioning posts one by one, preventing the support frame from rotating circumferentially relative to the upper cavity. When producing and assembling the food processing machine, the seal is first sleeved and fixed on the bottom cover 602, and the support frame is sleeved and installed on the lower end of the upper cavity. The seal is installed with the bottom cover to the lower port of the upper cavity and is fixedly connected to the support frame to prevent the seal from shifting and preventing the seal from failing. The seal is easy to install, which simplifies the user's installation action and avoids slurry leakage due to installation errors. In addition, the installation of the seal 501 also simplifies the limiting structure between the upper cavity and the support frame, avoiding storage of materials or cleaning dead corners.

[0050] Specifically, the support frame includes an annular sidewall 611 and an upper edge 605 provided at the upper end of the annular sidewall. The bottom edge of the upper edge is provided with a downwardly protruding annular positioning boss 612. The lower end of the upper cavity is provided with a limiting step 303. In this embodiment, the limiting step 303 is a flange provided at the lower end of the upper cavity. The positioning notch is provided on the limiting step. The positioning boss on the upper edge 605 cooperates with the limiting step to axially limit the support frame. A gap is provided between the upper edge 605 and the outer wall of the upper cavity to prevent over-positioning and avoid scratching the outer wall of the upper cavity. The bottom cover includes a bottom cover sidewall 613, a mounting edge 604 provided at the upper end of the bottom cover sidewall, and a lower edge 606 provided at the lower end of the bottom cover sidewall. The bottom cover abuts and cooperates with the lower end of the support frame 601 through the lower edge 606. Specifically, an upper positioning surface is provided on the inner side of the lower end of the annular side wall 611 of the support frame, and a lower positioning surface is provided on the lower edge 606 of the bottom cover. The upper positioning surface and the lower positioning surface are abutted and matched, so that when the bottom cover and the support frame are fastened by screws, the seal 501 is fastened between the top surface of the bottom cover mounting edge and the end face of the lower port of the upper cavity.

[0051] The top of the mounting edge is provided with an annular limiting groove 607, and the bottom surface of the sealing end of the seal is provided with an annular limiting rib 608 that cooperates with the limiting groove. When the seal 501 is mounted on the bottom cover through the opening 503, the limiting rib 608 is engaged with the limiting groove to limit the seal. Figure 8 As shown, the upper end of the opening is provided with a first limiting rib 509 that cooperates with the outer periphery of the limiting step at the lower end of the upper cavity, and the lower end of the opening is provided with a second limiting rib 510 that cooperates with the bottom cover. The bottom surface of the bottom cover mounting edge is provided with an arc-shaped boss, and a slot 614 is formed between the arc-shaped boss and the side wall of the bottom cover. The second limiting rib 510 is inserted into the slot 614 to limit the position of the sealing member guide. When the upper cavity is installed on the lower cavity, the guide abuts the upper end of the lower cavity.

[0052] The sealing member fixing device is provided with an upper screw-on structure 401, and the upper end of the lower cavity is provided with a lower screw-on structure 609 that cooperates with the upper screw-on structure. The upper cavity and the lower cavity are screwed together and the sealing member seals the connection between the upper cavity and the lower cavity. In this embodiment, Figure 6 As shown, the upper screw-on structure is arranged on the inner side of the side wall of the bottom cover, and the lower screw-on structure 609 is arranged on the outer side of the upper end of the side wall of the lower cavity. The lower cavity is made of aluminum die-casting, and the lower cavity is embedded with a heating tube. The upper cavity is a glass cavity, and the side wall and the top wall are connected as one. A feeding port 304 and an exhaust plug 305 are provided on the top wall. A sealing portion is provided between the feeding port and the exhaust plug, and the processing visualization and cleaning visualization effects are good. When the upper screw-on structure is screwed into the lower screw-on structure 609, the upper port of the lower cavity abuts against the sealing guide and compresses the elastic deformation space, so that the connection between the upper and lower cavities is reliably sealed, and at the same time, it can offset the assembly accuracy error caused by the manufacturing tolerance of the upper cavity. Both the support frame 601 and the bottom cover 602 are provided with reinforcing ribs 615. The reinforcing ribs are arranged longitudinally. The reinforcing ribs on the support frame extend upward from the inner side of the annular side wall of the support frame to the bottom surface of the upper edge and are flush with the positioning boss. The reinforcing ribs on the bottom cover extend downward from the outer side of the bottom cover side wall to the top surface of the lower edge. The upper screw-on structure is a twist buckle, while the lower screw-on structure is a snap buckle. The upper surface of the snap buckle is positioned below the end face of the lower chamber's upper port, ensuring independent and reliable sealing of the twist buckle and the lower chamber's upper port. The main unit is equipped with a locking device 106 to lock the upper chamber, and the bottom cover is equipped with a locking structure 616 that cooperates with the locking device. Once the upper chamber is screwed into place, the locking structure 616 cooperates with the locking device 106 to prevent accidental removal of the upper chamber after power is applied.

[0053] In this embodiment, a drain hole 610 is provided on the lower edge of the bottom cover 602 to prevent liquid from entering the gap between the support frame and the bottom cover due to the height difference of the upper chamber. The drain hole 610 promptly drains any remaining water, preventing odor from remaining in the seal fixture. If the user accidentally exposes the upper chamber to water after removing it during use, the remaining water can be promptly drained through the drain hole, ensuring the cleanliness of the accessories and the safety of the user.

[0054] It is understandable that the inner side wall of the connecting section may be vertically arranged; or, the inner side wall of the lower cavity may be inclined, and the inner side wall of the connecting section and the inner side wall of the lower cavity may be inclined in the same direction.

[0055] It is understandable that the water leakage hole can also be set on the support frame. Example

[0056] This embodiment differs from the first embodiment in the seal securing mechanism. In this embodiment, the seal securing mechanism comprises a support frame, but not a bottom cover. The support frame screws onto the upper chamber and secures the seal between the support frame and the lower end of the upper chamber. The lower end of the support frame also features an upper screw-on structure that connects to the upper screw-on structure of the lower chamber. This simplifies the structure and reduces component count, lowering installation and manufacturing costs.

[0057] In addition to the preferred embodiments described above, the technical solutions protected by the present invention are not limited to the above embodiments. It should be noted that the combination of multiple technical solutions in any one embodiment, as well as the combination of the technical solution of any one embodiment with the technical solutions in one or more other embodiments, are within the scope of protection of the present invention. Although the present invention has been described in detail above using general descriptions and specific embodiments, it is obvious to those skilled in the art that modifications or improvements can be made based on the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention are within the scope of protection claimed by the present invention.

Claims

1. A food processor that does not require hand washing, comprising a main unit, a processing chamber and a motor, wherein a crushing blade driven by the motor is provided in the processing chamber, characterized in that: The processing chamber includes an upper chamber and a lower chamber, and a connecting section located between the upper chamber and the lower chamber. The total volume of the upper chamber and the connecting section is not less than the volume of the lower chamber. The lower chamber is fixed to the main machine, and the upper chamber is detachable relative to the lower chamber. The connecting section is excessively connected to the upper chamber, and the connecting section for changing the direction of water flow is at least partially protruded into the processing chamber relative to the lower chamber. During the cleaning process, the water flow moving upward along the side wall of the lower chamber under the drive of the crushing knife is inclined toward the direction of rotation center of the crushing knife at the connecting section along with the protruding connecting section and continues to move upward under the stirring of the crushing knife to flush the top wall of the upper chamber. During the crushing and pulping process, the material is pressed downward and toward the crushing knife at the connecting section under the drive of the crushing knife so as to focus the solid material in the solid-liquid mixture in the lower chamber for crushing.

2. The food processing machine according to claim 1, wherein The connecting section comprises an annular seal which forms part of the inner side wall of the process chamber.

3. The food processing machine according to claim 1, wherein The inner side wall of the upper cavity is inclined, and the inner side wall of the connecting section is inclined in the same direction as the inner side wall of the upper cavity; Alternatively, the inner side wall of the connecting section is arranged vertically; Alternatively, the inner side wall of the lower cavity is inclined, and the inner side wall of the connecting section has the same inclination direction as the inner side wall of the lower cavity.

4. The food processing machine according to claim 1, wherein The top end of the crushing knife is not higher than the connection section. The connection section is fixed at the lower end of the upper cavity. A step is formed at the connection between the connection section and the lower cavity.

5. The food processing machine according to claim 2, characterized in that The lower port of the upper cavity is provided with an annular bottom cover, and the sealing member is installed on the bottom cover.

6. The food processing machine according to claim 5, characterized in that The lower port of the upper cavity is further provided with an annular support frame, the bottom cover is fixedly connected to the support frame and clamps at least part of the sealing member between the lower port of the upper cavity and the bottom cover.

7. The food processing machine according to claim 6, characterized in that The support frame is arranged around the circumference of the lower end of the lower cavity, a positioning structure is provided on the support frame, and a limiting structure matched with the positioning structure is provided on the upper cavity.

8. The food processing machine according to claim 2, characterized in that The sealing member is provided with a sealing end surface, the sealing end surface is provided with a sealing rib, and the sealing end surface is sealed with the lower port of the upper cavity.

9. The food processing machine according to claim 1, wherein The sealing member is provided with an opening and an elastic deformation space communicated with the opening, and the upper port of the lower cavity at least partially abuts against the sealing member to compress the elastic deformation space.

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