Juicing assembly

Abstract

The utility model relates to a juicing assembly which comprises a juicing net, and an upper limiting ring is arranged at the bottom of the juicing net. The screw rod is longitudinally arranged in the juicing net; the juice collecting disc is matched with the juicing net in an inserted mode and provided with an inner positioning ring face abutting against the outer side of the upper limiting ring; the bottom of the juice collecting disc is sunken downwards to form a grinding cavity located on the inner side of the lower portion of the inner positioning ring face, a step face is formed between the inner positioning ring face and the grinding cavity, the bottom of the upper limiting ring abuts against the step face, and the screw is in clearance fit with the upper limiting ring. The bottom of the screw downwards penetrates out of the upper limiting ring in the axial direction and is located in the grinding cavity. According to the technical scheme, the grinding path is prolonged, materials are further finely ground, the juice yield is improved, and a good grinding effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of food processing machine technology, and in particular to a juicing component with high juice yield and good grinding effect. Background Technology

[0002] A slow juicer evolved from a conventional juicer, its main function being to turn fruit into juice to improve taste and convenience. Compared to a regular juicer, it extracts juice through low-speed screw extrusion; the lower the extrusion speed, the better, slowly squeezing the juice out like wringing a towel, without damaging the fruit's cell structure and preserving its nutrients. Furthermore, low-speed juicing avoids generating high heat, preventing the juice from oxidizing. In related technologies, a motor combined with a reduction gear structure outputs slow, high torque to meet the high torque required for slow screw extrusion.

[0003] The application number is CN202021260203.1, and the invention title is "A Juicer with a Stable Juice Dispensing Gap". It discloses that the lower end of the extrusion cylinder is provided with a connecting ring for connecting the upper pair of insert teeth. The upper pair of insert teeth at the lower end of the extrusion cylinder and the lower pair of insert teeth of the juice collection chamber cooperate to form a juice dispensing gap. The bottom of the juice collection chamber is provided with an inner positioning ring surface that abuts against the outer side of the connecting ring. However, the technical problem with this solution is that when the feeding speed is fast, the material enters the collection tray at a high speed. Uneven or excessive speeds of any one or both of these factors can cause the main screw at the top of the screw to bite too quickly, resulting in a large feed volume at once. This leads to a faster feed speed of the auxiliary screw below the screw. Due to its own weight, the gravity of the material above, and the screw's extrusion pressure, the material accelerates downwards, shortening its residence time in the extrusion and crushing section. This results in an excessively fast speed in the screw's extrusion and crushing section, leading to insufficient extrusion and crushing. As the material continues to move downwards, the amount of material in the screw's grinding section increases, exceeding the grinding capacity. This causes the material to be transported to the bottom of the collection chamber before being fully extracted from the area above the bottom of the extrusion cylinder, resulting in insufficient grinding. Furthermore, excessive material in the screw's grinding section can cause blockage, leading to damage at the bottom of the screw. Radial disturbances can cause the juicer to stop abnormally. Secondly, since the screw only cooperates with the extrusion cylinder to extrude and grind juice, and the extrusion cylinder is a moving part relative to the screw, the extrusion cylinder needs additional positioning to cooperate with the screw. Under the extrusion of the material, the screw may move axially and may move upward axially. The grinding section where the two moving parts of the extrusion cylinder and the screw cooperate may be shortened, resulting in poor grinding effect. Furthermore, since the bottom surface of the juice collection chamber is directly below the inner positioning ring surface of the juice collection chamber (juice collection plate), that is, the bottom surface of the extrusion cylinder (juice screen), the bottom surface of the screw, and the bottom surface of the juice collection chamber are almost flush, the existence of the juice outlet gap, and the assembly gap between the side wall and bottom surface of the connecting ring and the juice collection chamber, along the axial height above the bottom surface of the extrusion cylinder, can connect the space inside and outside the extrusion cylinder in the juice collection chamber. Based on this, the material is subjected to limited friction due to the pressure between the screw and the extruder. The material continues to run downwards before it is fully extracted. However, as the material continues to be squeezed downwards, the bottom surface of the extruder cylinder is almost flush with the bottom surface of the juice collection chamber. The material is directly discharged as residue from the slag outlet at the bottom. The material is not fully squeezed, which not only reduces the juice yield but also results in poor grinding effect.

[0004] Application number CN201120418490.9, entitled "A Juicer with a Juice Discharge Channel," discloses a juicer with a filter screen on the extrusion cylinder, a juice-residue separator at the bottom of the extrusion cylinder, and a screw installed inside the extrusion cylinder. Juice is filtered through the filter screen and discharged into the juice discharge channel at the bottom of the juice-residue separator. However, the technical problem with this solution is that the extrusion cylinder uses a traditional precision filter screen. Because the filter screen has filter holes, the spaces inside and outside the juice-residue separator are connected. The material is only subjected to extrusion force between the screw and the extrusion cylinder. Under the action of its own weight and the downward extrusion force of the screw, the material falls rapidly, resulting in the material not being completely squeezed dry. Furthermore, because the bottom surfaces of the extrusion cylinder, screw, and juice-residue separator are almost flush, the unsqueezed material is directly discharged as raw material, greatly reducing the juice yield.

[0005] The aforementioned disclosed technical solutions all have the following technical problems: the grinding section where the two moving parts, the extrusion cylinder and the screw, cooperate may become shorter due to the axial movement of the screw, resulting in poor grinding effect; uneven material feeding speed, material dropping speed, and material biting speed lead to insufficient juicing; and the limited friction between the material and the extrusion cylinder and the screw means that the material continues to move downwards before it has been fully extracted. Because the bottom surface of the extrusion cylinder is almost flush with the bottom surface of the juice collection chamber, the material is directly discharged from the slag outlet as slag, and the material is not fully squeezed, resulting in a reduced juice yield. Utility Model Content

[0006] The purpose of this utility model is to provide a juicing component to solve the technical problems of insufficient juicing caused by uneven material feeding speed, material dropping speed and material biting speed, and poor grinding effect caused by the shortening of the axial mating section of the two moving parts of the extrusion cylinder and screw due to the axial movement of the screw.

[0007] To solve the above-mentioned technical problems, this utility model provides a juicing component, comprising:

[0008] Juicing net with an upper limit ring at the bottom;

[0009] The screw is longitudinally positioned inside the juicing mesh;

[0010] The juice collection tray is inserted and fitted with the juice extraction mesh, and has an inner positioning ring surface that abuts against the outer side of the upper limit ring;

[0011] The bottom of the juice collection tray is recessed downward to form a grinding cavity located on the inner side below the inner positioning ring surface. A stepped surface is formed between the inner positioning ring surface and the grinding cavity. The bottom of the upper limit ring abuts against the stepped surface. The screw is clearance-fitted with the upper limit ring. The bottom of the screw passes through the upper limit ring axially downward and is located in the grinding cavity.

[0012] Preferably, the inner wall of the upper limit ring protrudes from the stepped surface.

[0013] Preferably, the inner wall of the grinding chamber has a protruding second grinding rib, which cooperates with the lower outer periphery of the screw.

[0014] Preferably, the inner sidewall of the upper limit ring has a first grinding rib protruding from it, and the first grinding rib is located above the step surface.

[0015] Preferably, the inner wall of the upper limit ring has a first grinding rib protruding out, and the inner sidewall of the grinding cavity has a second grinding rib protruding out, with the first grinding rib and the second grinding rib being offset in the circumferential direction.

[0016] Preferably, a squeezing gap is provided between the screw and the juicing screen, located above the grinding chamber, and the grinding chamber and the squeezing gap are connected or isolated from each other.

[0017] Preferably, the bottom of the juice collection tray extends upward to form a pair of lower teeth that engage with the juice extraction mesh. The lower teeth are located above the inner positioning ring surface, and a tooth groove is formed between two adjacent lower teeth. The second grinding rib and the tooth groove are staggered in the circumferential direction.

[0018] Preferably, the screw is provided with a spiral rib, and the gap between the spiral rib and the first grinding rib is smaller than the gap between the spiral rib and the second grinding rib.

[0019] Preferably, the screw has a reduced diameter section, the reduced diameter section has a connecting surface, the connecting surface is located axially above the stepped surface, and the connecting surface abuts against the upper end of the upper limit ring.

[0020] Preferably, the axial height of the grinding chamber is greater than or equal to the axial height of the inner wall of the upper limit ring.

[0021] The beneficial effects of this utility model are:

[0022] 1. This utility model provides a juicing assembly in which a juice collecting disc and a juicing screen are inserted and fitted together. The outer side of the upper limit ring at the bottom of the juicing screen abuts against the inner positioning ring surface of the juice collecting disc. A stepped surface is formed between the inner positioning ring surface and the grinding chamber at the bottom of the juice collecting disc. The bottom of the upper limit ring abuts against the stepped surface. The connecting ring is radially limited by the inner positioning ring surface and axially supported by the stepped surface, thereby simultaneously achieving radial and axial positioning of the juicing screen. Secondly, there is a gap between the screw and the upper limit ring, allowing the screw to pass through the upper limit ring and engage with the grinding chamber. Based on this, the material is squeezed and ground by the screw and the juicing screen, and also ground by the screw and the grinding chamber. The grinding space is segmented with the stepped surface as the boundary. Grinding above the stepped surface... In the first grinding section, the juicing screen and screw work together to coarsely grind small particles of material, allowing the juice to be discharged directly through the gap between the juice collection disc and the juicing screen. This short discharge path prevents overflow due to delayed juice discharge. In the grinding area below the stepped surface, the screw directly engages with the grinding chamber of the juice collection disc. There are no intermediate parts between the grinding chamber and the screw, eliminating unnecessary assembly gaps. The screw is a moving part, while the juice collection disc is a fixed part relative to the screw. The grinding chamber, formed on the juice collection disc, is also a fixed part. Due to the material compression, the screw may axially move upwards, while the extrusion cylinder is a moving part relative to the screw. Therefore, the extrusion cylinder requires additional... Positioning is used to achieve the engagement with the screw. Therefore, the grinding section where two moving parts engage may lead to a shorter axial engagement section. To address this, a grinding chamber is added below the step surface. The engagement between the grinding chamber and the screw is a grinding process between a moving part and a completely stationary part, ensuring the height of the axial engagement section and thus guaranteeing the grinding contact area of ​​the material below the step surface. The grinding efficiency and effect below the step surface are better than the grinding between the extrusion cylinder and the screw above the step surface. By extending the grinding path, the problem of poor grinding effect between the extrusion cylinder and the screw is compensated for. Furthermore, the space between the grinding chamber and the screw is highly compact, requiring the juice to rise above the step surface and then tumble to the outside of the extrusion cylinder. During the juicing process, juice and material are constantly mixed. Located within the grinding chamber, the material is attracted to the material by the sidewalls of the grinding chamber and the screw, increasing the friction on the material. Under the combined action of the screw's extrusion force and the attraction force, the material is ground more thoroughly, achieving fine grinding and greatly improving the juice yield. Furthermore, when the material load in the juice collection tray is large, the material at the bottom accelerates downward due to its own weight, the gravity of the material above, and the screw's extrusion force, shortening its residence time within the axial height range of the extrusion cylinder. The grinding chamber below the stepped surface extends the grinding path, ensuring thorough juicing of the material. This not only greatly improves the juice yield but also results in finely ground particles that are less prone to clogging and prevent radial disturbance to the screw.

[0023] 2. Because the inner wall of the upper limit ring protrudes from the stepped surface, the section of the upper limit ring protruding from the stepped surface, the stepped surface, and the screw work together to form a fine grinding area. When the section of the upper limit ring protruding from the stepped surface and the screw work together, they can break the material, further crushing it. After being crushed, the particle size decreases and moves radially outward, turning outward to enter the grinding chamber. Since the outer diameter of the screw bottom gradually decreases, the gap between the grinding chamber and the screw gradually increases from top to bottom. This causes the falling speed of the material to suddenly increase when it turns from the bottom of the upper limit ring into the grinding chamber. During fine grinding in the highly compact grinding chamber, due to the combined effects of adsorption and screw extrusion, the increased falling speed of the material does not reduce the degree of material drying. On the contrary, the increased falling speed can accelerate the grinding process, thereby improving the juicing efficiency of the material. Secondly, when the grinding particles fill the fine grinding area at certain times, while the grinding chamber below is not yet completely filled with material, the grinding chamber becomes a closed chamber, preventing the grinding chamber from communicating with the outside. This strengthens the adsorption force between the side wall of the grinding chamber and the screw on the material, increases the friction force on the material in the grinding chamber, and allows the material in the grinding chamber below the step surface to be ground more thoroughly, further improving the juice yield.

[0024] 3. A second grinding rib protrudes from the inner wall of the grinding chamber. This second grinding rib cooperates with the lower outer periphery of the screw. By setting the second grinding rib in the grinding area below the step surface, the squeezing action between the screw and the grinding chamber is improved, thereby increasing the friction on the material. This allows high-fiber ingredients such as celery to be coarsely ground in the grinding area above the step surface, and then further ground by the squeezing action of the second grinding rib and the screw. This effectively cuts the food fibers and improves the juicing effect. At the same time, when the material passes through two adjacent second grinding ribs, there is a recessed section of the grinding chamber sidewall in between. The material experiences different adsorption forces on the second grinding rib and the recessed section, which can also scrape the material off, avoiding the problem of residue sticking to the wall and preventing the problem of fiber blockage after juicing.

[0025] 4. The inner wall of the upper limit ring protrudes to form a first grinding rib, and the inner side wall of the grinding chamber protrudes to form a second grinding rib. The first grinding rib and the second grinding rib are staggered in the circumferential direction to realize the segmented design of the grinding rib. When the food is processed, the food ground at the bottom of the juicing net can be partially transferred to the juice collection plate for grinding, thereby effectively reducing the squeezing and clamping force between the screw and the juicing net. This makes it more convenient and faster for users to disassemble the screw and other parts, improving the user experience. Furthermore, a second grinding rib is provided on the inner wall of the juice collection plate, which can improve the strength of the juice collection plate, ensure that the juice collection plate can withstand greater extrusion pressure, and help extend the service life of the juice collection plate. Secondly, the upper and lower ends of the first grinding rib and the upper and lower ends of the second grinding rib are connected to form an inclined channel. A guide channel is provided between two adjacent spiral ribs outside the screw. The inclined channel and the guide channel are inclined in the same direction, so that when the material runs between the inclined channel and the guide channel, it can be accommodated in the space between them as much as possible. The gap between the spiral rib and the inclined channel is smaller than the gap between the guide channel and the inclined channel. When the material moves forward and downward, it continuously switches between two gaps of different sizes along the circumference, so that the material is subjected to different pressures between two adjacent gaps, thereby generating a pressure difference, which is conducive to grinding the juice in the material and improving the juice yield.

[0026] 5. By offsetting the second grinding ribs and the interlocking grooves on the juice collection plate in the circumferential direction, the second grinding ribs and the interlocking grooves are staggered, which minimizes the entry of external gas into the gap between the second grinding ribs and the screw. This maximizes the adsorption force on the material during grinding between the second grinding ribs and the screw, thereby increasing the friction on the material and grinding it more thoroughly, thus ensuring the juice yield. Furthermore, since there is a recessed section between two adjacent second grinding ribs, and the gap between the recessed section and the screw is larger than the gap between the second grinding ribs and the screw, by avoiding the interlocking grooves on the second grinding ribs and aligning the recessed section with the interlocking grooves, the juice can surge upwards to the recessed section where the pressure is lower, and then tumble out from the direction of the interlocking grooves, thereby improving the juice discharge efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the juicer in one embodiment of the present invention;

[0029] Figure 2 This is a cross-sectional view of the juicing component in one embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the juicing net and the juice collection tray in one embodiment of the present invention;

[0031] Figure 4 This is a cross-sectional view of the juicing mesh and the juice collection tray in one embodiment of the present invention;

[0032] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0033] Figure 6 This is a schematic diagram of the structure of the juicing mesh in one embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the juice collection tray from one perspective in one embodiment of the present invention;

[0035] Figure 8 This is a partial schematic diagram of the juice collection tray in one embodiment of the present invention;

[0036] Figure 9 This is a cross-sectional view of the juicing component in one embodiment of the present invention;

[0037] Figure 10 for Figure 9 Enlarged view of point B in the middle;

[0038] Figure 11 This is a schematic diagram of the juice collection tray from another perspective in one embodiment of the present invention.

[0039] The names of the components shown in the diagram are as follows:

[0040] 1. Main unit; 2. Juicing assembly; 3. Feed hopper; 4. Juicing screen; 41. First grinding rib; 411. Inclined section; 412. Vertical section; 42. Upper limit ring; 43. Slot; 44. Extrusion gap; 5. Screw; 51. Connecting surface; 6. Juice collection tray; 61. Second grinding rib; 62. Lower limit ring; 63. Grinding chamber; 64. Stepped surface; 65. Inner positioning ring surface; 66. Lower interlocking teeth; 661. Interlocking tooth groove; 67. Annular juice outlet channel. Detailed Implementation

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

[0042] Please see Figures 1-11 This utility model provides a juicing assembly, including a juicing screen 4, a screw 5, and a juice collection tray 6. The juicing assembly 2 includes a juicing body and a hopper 3 disposed above the juicing body. The juicing body includes the juice collection tray 6 and the juicing screen 4.

[0043] Juicing mesh 4 has an upper limit ring 42 at its bottom; screw 5 is longitudinally disposed inside the juicing mesh 4; juice collection tray 6 is inserted into the juicing mesh 4 and has an inner positioning ring surface 65 that abuts against the outer side of the upper limit ring 42; the bottom of the juice collection tray 6 is recessed downward to form a grinding cavity 63 located on the inner side below the inner positioning ring surface 65, a stepped surface 64 is formed between the inner positioning ring surface 65 and the grinding cavity 63, the bottom of the upper limit ring 42 abuts against the stepped surface 64, the screw 5 is clearance-fitted with the upper limit ring 42, and the bottom of the screw 5 passes through the upper limit ring 42 axially downward and is located inside the grinding cavity 63.

[0044] It should be noted that "bottom of the juice collection tray 6" refers to the portion below the inner positioning ring surface 65, which is the bottom of the juice collection tray 6. When the bottom of the juice collection tray 6 has an inwardly protruding waterproof platform for the screw 5 shaft to pass through, the grinding chamber 63 is annular. If the bottom surface of the juice collection tray 6 is horizontal and there is no waterproof platform, the grinding chamber 63 is cylindrical. "The juice collection tray 6 and the juicing mesh 4 are inserted and matched" means that the bottom of the juice collection tray 6 has a pair of lower insertion teeth 66, the juicing mesh 4 has a pair of upper insertion teeth, and a slot 43 is provided between two adjacent pairs of upper insertion teeth. The lower insertion teeth 66 and the slot 43 cooperate to form a juice outlet gap, and the upper limit ring 42 is used to connect the bottoms of multiple pairs of upper insertion teeth. The cavity wall of the grinding chamber 63 is the lower limit ring 62 that protrudes inward from the bottom of the juice collection tray 6, and the bottom end of the juicing mesh 4 abuts against the top wall of the lower limit ring 62.

[0045] Material flow path: The material entering the hopper 3 is crushed into large pieces by the pre-cutting structure in the hopper 3. The large pieces enter the screw extrusion crushing section and are crushed into small pieces. The small pieces are ground into grinding particles between the extrusion cylinder and the screw. The grinding particles enter the grinding chamber and are ground into fine particles. After fine grinding in the grinding chamber, the material moves downward to the bottom of the grinding chamber and is finally discharged from the slag outlet at the bottom of the juice collection chamber.

[0046] Understandably, the connecting ring is radially limited by the inner positioning ring surface 65 and axially supported by the stepped surface 64, thus simultaneously achieving radial and axial positioning of the juicing mesh 4. A gap exists between the screw 5 and the upper limit ring 42, allowing the screw 5 to pass through the upper limit ring 42 and engage with the grinding chamber 63.

[0047] Secondly, the material is ground by the screw 5 and the juicing screen 4, and also by the screw 5 and the grinding chamber 63. The grinding space is divided into sections by the stepped surface 64. In the grinding area above the stepped surface 64, the juicing screen 4 and the screw 5 coarsely grind small pieces of material, allowing the juice to be discharged directly through the juice outlet gap between the juice collection plate 6 and the juicing screen 4. The discharge path in this grinding section is short, preventing overflow due to untimely juice discharge. In the grinding area below the stepped surface 64, the screw 5 directly engages with the grinding chamber 63 of the juice collection plate 6. There are no other intermediate parts between the grinding chamber 63 and the screw 5, and no extra assembly gaps. The screw is a moving part, while the juice collection plate is a fixed part relative to the screw. The grinding chamber, formed on the juice collection plate, is also a fixed part. Due to the axial movement of the screw under the pressure of the material, the screw may move axially upwards. Since the extrusion cylinder is a moving part relative to the screw, it needs additional positioning to achieve engagement with the screw. Therefore, the grinding section with two moving parts may shorten the axial contact section. Adding a grinding chamber below the step surface, where the grinding chamber and screw work together as a grinding process between a moving part and a completely stationary part, ensures the height of the axial contact section and thus guarantees the grinding contact area of ​​the material below the step surface. The grinding efficiency and effect below the step surface are better than the grinding between the extrusion cylinder and screw above the step surface. By extending the grinding path, the problem of poor grinding effect between the extrusion cylinder and screw is compensated. Furthermore, the space between the grinding chamber 63 and the screw 5 is highly compact, requiring the juice to rise above the step surface 64 and then turn to the outside of the extrusion cylinder. During the juicing process, juice and material are always mixed in the grinding chamber 63. The sidewall of the grinding chamber 63 and the screw 5 have an adsorption force on the material. Under the dual action of the screw 5's extrusion force and adsorption force, the material experiences increased friction, allowing for more thorough grinding and achieving fine grinding of the material, greatly improving the juice yield.

[0048] Furthermore, when the material load in the juice collection tray 6 is large, the material at the bottom accelerates downward due to its own weight, the gravity of the material above, and the extrusion force of the screw 5. The residence time within the axial height range of the extrusion cylinder is shortened. The grinding chamber 63 below the step surface 64 is set to extend the grinding path and fully extract juice from the material. This not only greatly improves the juice yield, but also reduces the particle size of the material after fine grinding in the grinding chamber 63, resulting in fine particles. It is also less prone to clogging and avoids radial disturbance to the screw 5.

[0049] Based on existing technology, in order to fully squeeze out the material, those skilled in the art can easily think of increasing the grinding height of the extrusion cylinder and the screw. However, when considering the overall strength of the extrusion cylinder and the overall height of the juicing assembly, it is necessary to compress the space of the extrusion and crushing section above the grinding section and the screw biting section. This will lead to an imbalance between the feeding speed, the dropping speed of the juice collection plate, and the biting speed of the main screw, but it is still difficult to solve the problem of poor grinding effect.

[0050] To ensure the grinding strength of grinding chamber 63, such as Figure 10 As shown, the axial height of the grinding chamber 63 is greater than or equal to the axial height of the inner wall of the upper limit ring 42. Preferably, the axial height H2 of the grinding chamber 63 is 10 mm, and the axial height H3 of the inner wall of the upper limit ring 42 is 8.24 mm.

[0051] It is understandable that the fine grinding height of the grinding chamber 63 and the screw 5 is greater than the coarse grinding height of the upper limit ring 42 and the screw 5. The step surface 64 serves as the boundary, allowing the grinding chamber 63 below the step surface 64 to fully undertake the grinding task, extending the grinding path, ensuring that the material can be effectively finely ground, and fully extracting juice from the material. This not only greatly improves the juice yield, but also reduces the particle size of the material after fine grinding in the grinding chamber 63, making it less prone to clogging and avoiding radial disturbance to the screw 5.

[0052] There are several ways for the bottom of the upper limit ring 42 and the step surface 64 to abut against each other: the inner wall of the upper limit ring 42 protrudes from the step surface 64; they can also be flush; part of the inner wall of the upper limit ring 42 is flush with the step surface 64 and part protrudes from the step surface 64; or the bottom of the upper limit ring 42 and the step surface 64 are smoothly connected, etc.

[0053] Specifically, such as Figure 5 , Figure 8 , Figure 10 As shown, in this embodiment, the inner wall of the upper limit ring 42 protrudes from the step surface 64, and the inner wall of the upper limit ring 42 can protrude from the step surface 64 in an annular shape.

[0054] It is understandable that the section of the upper limit ring 42 protruding from the step surface 64, the step surface 64, and the screw 5 work together to form a fine grinding area. This fine grinding area is approximately triangular in shape. When the section of the upper limit ring 42 protruding from the step surface and the screw 5 work together, they can break the material, further crushing it. After crushing, the material with a smaller particle size moves radially outward and turns outward to enter the grinding chamber 63. Generally, the outer diameter of the bottom of the screw 5 gradually decreases, meaning that the gap between the grinding chamber 63 and the screw 5 gradually increases from top to bottom. This causes the falling speed of the material to suddenly increase when it turns from the bottom of the upper limit ring 42 into the grinding chamber 63. During fine grinding in the highly compact grinding chamber 63, due to the combined effects of adsorption and the squeezing force of the screw 5, the increased falling speed of the material does not reduce the degree of material drying. On the contrary, the increased falling speed can accelerate the grinding process, thereby improving the juicing efficiency. Therefore, by setting up this fine grinding area, the juicing efficiency is improved while ensuring the juice yield. Secondly, when the grinding particles fill the fine grinding area at certain times, but the grinding chamber 63 below is not completely filled with material, the grinding chamber 63 can become a closed chamber, preventing it from communicating with the outside. This strengthens the adsorption force between the side wall of the grinding chamber 63 and the screw 5 on the material, increases the friction force on the material in the grinding chamber 63, and allows the material in the grinding chamber 63 below the step surface 64 to be ground more thoroughly under the combined action of the screw 5's extrusion and adsorption forces, achieving fine grinding of the material and further improving the juice yield.

[0055] More specifically, Figures 9-10 As shown, a squeezing gap 44 is provided between the screw 5 and the juicing mesh 4, located above the grinding chamber 63. The grinding chamber 63 and the squeezing gap 44 are connected or isolated from each other.

[0056] It is understandable that the section of the upper limit ring 42 protruding from the step surface 64, the step surface 64, and the screw 5 work together to form a fine grinding area. When the grinding particles fill this fine grinding area at certain times, but the grinding chamber 63 below is not yet completely filled with material, the grinding chamber 63 can become a closed chamber, preventing the grinding chamber 63 from communicating with the extrusion gap 44. When the fine grinding area is not filled, the grinding chamber 63 and the extrusion gap 44 are connected. The connection or isolation between the grinding chamber 63 and the extrusion gap 44 can be freely switched. When connected, the juice extracted from the grinding chamber 63 can flow upward through the fine grinding area and the inner positioning ring surface 65 and be turned out into the annular juice outlet channel 67, allowing the juice to be discharged in time to ensure the juice discharge efficiency and avoid the juice from soaking the residue for a long time and being sucked back in, which would affect the juice yield. Simultaneously, when the grinding chamber 63 and the extrusion gap 44 are isolated, the adsorption force between the side wall of the grinding chamber 63 and the screw 5 on the material is strengthened, increasing the frictional force on the material within the grinding chamber 63. This allows the material in the grinding chamber 63 below the step surface 64 to be ground more thoroughly, achieving fine grinding and further improving the juice yield. In summary, the free switching between the grinding chamber 63 and the extrusion gap 44 in either connected or isolated states not only prevents juice from remaining in the grinding chamber 63 for extended periods, affecting the taste, but also ensures efficient juice extraction and improves the juice yield.

[0057] In one embodiment, a second grinding rib 61 protrudes from the inner sidewall of the grinding cavity 63, and the second grinding rib 61 cooperates with the lower outer periphery of the screw 5. Understandably, in the grinding area below the step surface 64, the second grinding rib 61 is set to enhance the squeezing action between the screw 5 and the grinding chamber 63, thereby increasing the friction on the material. This allows high-fiber ingredients such as celery to be coarsely ground in the grinding area above the step surface 64, and then further ground by the squeezing action of the second grinding rib 61 and the screw 5. This effectively cuts the food fibers and improves the juicing effect. At the same time, when the material passes through two adjacent second grinding ribs 61, there is a recessed section on the side wall of the grinding chamber 63. The material experiences different adsorption forces on the second grinding ribs 61 and the recessed section, which can also scrape the material off, avoiding the problem of residue sticking to the wall and preventing the problem of fiber blockage after juicing. In addition, the second grinding rib 61 set on the inner side wall of the juice collection plate 6 can also improve the strength of the juice collection plate 6, ensuring that the juice collection plate 6 can withstand greater squeezing force and helping to extend the service life of the juice collection plate 6.

[0058] Furthermore, such as Figures 7-8 As shown, the bottom of the juice collection plate 6 extends upward to form a pair of lower teeth 66 that are inserted and engaged with the juice extraction net 4. The lower teeth 66 are located above the inner positioning ring surface 65. A tooth groove 661 is formed between two adjacent lower teeth 66. The second grinding rib 61 and the tooth groove 661 are staggered in the circumferential direction.

[0059] Understandably, the second grinding rib 61 and the interlocking tooth groove 661 are staggered to minimize the entry of external gas into the gap between the second grinding rib 61 and the screw 5. This maximizes the adsorption force on the material during grinding between the second grinding rib 61 and the screw 5, thereby increasing the frictional force on the material and grinding it more thoroughly, thus ensuring a higher juice yield. Secondly, since there is a recessed section between two adjacent second grinding ribs 61, and the gap between the recessed section and the screw 5 is larger than the gap between the second grinding rib 61 and the screw 5, by avoiding the interlocking tooth groove 661 and aligning the recessed section with the interlocking tooth groove 661, the juice can flow upwards to the recessed section where the pressure is lower, and then tumble out from the direction of the interlocking tooth groove 661, thereby improving the juice discharge efficiency.

[0060] In another embodiment, the difference from the previous embodiment is that, as Figure 6 As shown, the inner sidewall of the upper limit ring 42 has a protruding first grinding rib 41, which is located above the step surface 64.

[0061] Understandably, the first grinding rib 41 is positioned on the upper limit ring 42, allowing the juicing mesh 4 and screw 5 to work together to juice the ingredients. Simultaneously, the upper limit ring 42 abuts against the stepped surface 64 to provide axial and radial positioning of the juicing mesh 4 and the juice collection disc 6, ensuring the stability of their fit. Furthermore, while positioning the juice collection disc 6, the upper limit ring 42 also shapes the first grinding rib 41, bringing it closer to the grinding chamber 63. On one hand, because the material runs closer to the bottom of the extrusion cylinder, smaller grinding particles are obtained. By setting the first grinding rib 41, the grinding gap between the juicing mesh 4 and screw 5 is reduced, allowing small pieces of material to be ground effectively. This ensures more thorough extrusion and grinding within the juicing mesh 4, improving overall juicing efficiency and resulting in finer grinding particles entering the grinding chamber 63. On the other hand, it allows for a smoother transition of the residue between the first grinding rib 41 and the grinding chamber 63, further improving grinding efficiency and preventing residue from getting stuck or blocked.

[0062] Specifically, the first grinding rib 41 includes an inclined section 411 disposed on the top surface of the upper limit ring 42 and a vertical section 412 disposed on the inner side wall of the upper limit ring 42.

[0063] Understandably, by making the top surface of the upper limit ring 42 an inclined surface extending downwards, the fruit residue can move more smoothly downwards with the help of the inclined surface when the upper teeth move towards the upper limit ring 42. This effectively avoids the situation where the top surface of the upper limit ring 42 is a horizontal surface, causing the fruit residue to get stuck at the top surface of the upper limit ring 42 and unable to move downwards, resulting in the accumulation of fruit residue that cannot be discharged, thus ensuring the smooth progress of food processing. At the same time, the first grinding rib 41 includes an inclined section 411 provided on the inclined surface and a vertical section 412 provided on the inner side wall of the upper limit ring 42, so that the fruit residue can begin to be ground at the inclined section 411, allowing it to be initially cut and move downwards more smoothly, and further ground by the vertical section 412, which helps to further improve grinding efficiency.

[0064] In yet another embodiment, the difference from the previous embodiment is that, as Figures 3-5 As shown, the inner wall of the upper limit ring 42 protrudes to form a first grinding rib 41, and the inner sidewall of the grinding cavity 63 protrudes to form a second grinding rib 61. The first grinding rib 41 and the second grinding rib 61 are offset in the circumferential direction. The height of the first grinding rib 41 is H1, the height of the second grinding rib 61 is equal to the height H2 of the grinding cavity 63, the protrusion width of the first grinding rib 41 is B1, and the protrusion width of the second grinding rib 61 is B2.

[0065] It should be noted that the second grinding rib 61 can be formed by the grinding cavity 63 being recessed inward to form multiple grooves, with grinding ribs between adjacent grooves, or it can be formed by the grinding cavity 63 being protruded outward to form multiple protrusions, with the protrusions being the second grinding rib 61; the first grinding rib 41 is set in the same way.

[0066] Understandably, the segmented design of the grinding ribs allows for the formation of a first grinding zone between the screw 5 and the first grinding rib 41, and a second grinding zone between the screw 5 and the second grinding rib 61, during food processing. This design allows high-fiber foods, such as celery, to undergo initial grinding in the first grinding zone followed by further grinding in the second, effectively cutting the fibers and improving juicing efficiency. It also allows finely ground pulp to be smoothly discharged, improving pulp discharge efficiency and preventing coarse fibers from clogging the juicer. Furthermore, it allows some of the food being ground at the bottom of the juicing mesh 4 to be transferred to the juice collection tray 6 for further grinding, effectively reducing the squeezing force between the screw 5 and the juicing mesh 4. This makes disassembling the screw 5 and other components easier and faster, improving the user experience. The second grinding rib 61 on the inner wall of the juice collection tray 6 increases its strength, ensuring it can withstand greater pressure and extending its service life.

[0067] Secondly, by vertically offsetting the first grinding rib 41 and the second grinding rib 61, the fruit residue after being ground by the first grinding rib 41 can be ground by the second grinding rib 61 corresponding to each first grinding rib 41 as the screw 5 continues to move forward and downward. This effectively increases the relative distribution density of the first grinding rib 41 and the second grinding rib 61, thereby increasing the degree of grinding and extrusion of the food, effectively cutting the food fibers, and helping to further improve grinding efficiency.

[0068] Furthermore, connecting the upper ends of the first grinding rib 41 and the second grinding rib 61 with lines, and connecting the lower ends of the first grinding rib 41 and the second grinding rib 61 with lines, forms an inclined channel. The screw 5 is provided with spiral ribs, and a guide channel is provided between two adjacent spiral ribs. The inclined channel is inclined along the direction of rotation of the screw 5, and the inclined channel and the guide channel are inclined in the same direction. There is a first gap between the spiral ribs and the inclined channel, and a second gap between the guide channel and the inclined channel. The first gap is smaller than the second gap. The first gap and the second gap are connected and spaced apart along the circumference. As the material moves forward and downward, it continuously switches between the first gap and the second gap along the circumference, so that the material is subjected to different pressures between two adjacent first gaps and second gaps, thereby generating a pressure difference, which is beneficial for grinding out the juice in the material and improving the juice yield.

[0069] Furthermore, such as Figures 9-10 As shown, the screw 5 is provided with a spiral rib, and the gap between the spiral rib and the first grinding rib 41 is smaller than the gap between the spiral rib and the second grinding rib 61.

[0070] It is understandable that above the stepped surface 64, due to the assembly gaps and juice outlet gaps, there is almost no additional adsorption force. The first grinding rib 41 and the spiral rib need to reduce the gap so that the grinding particles running to the bottom of the juicing net 4 can also be squeezed to ensure the grinding juice yield in the juicing net 4. At the same time, since the gap between the spiral rib and the first grinding rib 41 is smaller than the gap between the spiral rib and the second grinding rib 61, the falling speed of the material suddenly increases when it turns from the bottom of the first grinding rib 41 into the grinding chamber 63. When it is finely ground by the second grinding rib 61 in the highly compact grinding chamber 63, due to the dual effects of adsorption force and screw 5 extrusion force, the increased falling speed of the material does not reduce the degree of material drying. On the contrary, the increased falling speed of the material can speed up the grinding process, thereby improving the juicing efficiency of the material.

[0071] In addition, such as Figures 9-10As shown, a reduced diameter section is formed on the screw 5, and a connecting surface 51 is formed on the reduced diameter section. The connecting surface 51 is located axially above the stepped surface 64, and the connecting surface 51 abuts against the upper end of the upper limit ring 42.

[0072] It is understood that the constricted section is an annular constricted section formed by the lower part of the screw 5 below 1 / 2. The upper end of the upper limit ring 42 has an inclined surface that slopes inward from top to bottom. The connecting surface 51 of the constricted section abuts against this inclined surface, which has a buffering effect on the downward movement of the material, allowing the material to stay in the juicing net 4 for a longer time and be squeezed as dry as possible within the axial height range of the juicing net 4, so that the juice can be discharged directly from the juice outlet gap, which is beneficial to improving the juice discharge efficiency and preventing the juice from staying in the juice collection plate 6 for a long time and affecting the taste.

[0073] In this embodiment, the juicing component 2 is mounted on the main unit 1 of the juicer, and the screw 5 is connected to the main unit 1 via a drive mechanism. The control method of the juicer is as follows:

[0074] Step 1: Click the start button, and the juicer will start running.

[0075] Step 2: The maximum working time of the drive screw 5 in the main unit 1 is the first preset time. When the drive component works for the first preset time, it stops working. That is, when the main unit 1 drives the drive component to work normally for the maximum working time, the juicer automatically stops running.

[0076] Step 3: The drive unit drives the screw 5 to reverse for a second preset time, automatically entering the reverse slag removal state. The motor reverses, driving the screw 5 to reverse, and the food is spiraled out along the upward direction of the spiral ribs, connecting the grinding chamber 63 and the squeezing gap 44 between the screw 5 and the juicing mesh 4. The connection between the grinding chamber 63 and the squeezing gap 44 enables communication with the outside world, balancing the pressure inside the grinding chamber 63 and breaking the adsorption state at the bottom of the juice collection plate 6 during the juicing process. After the work is finished, the screw 5 can be easily pulled out from the juice collection plate 6, allowing the user to easily separate the juice collection plate 6 and the screw 5 for cleaning, which is convenient for users and improves the user experience.

[0077] During the juicing process, this method utilizes the adsorption force between the grinding chamber 63 and the screw 5, as well as the squeezing force of the screw 5, to increase the frictional force on the material. This allows the material to be further finely ground in the grinding chamber 63 below the step surface 64, ensuring thorough grinding and increasing the juice yield. Simultaneously, at the end of juicing, when the screw 5 needs to be disassembled from the juice collection plate 6, the screw 5 can be reversed to unscrew the material in the grinding chamber 63 along the upward direction of the spiral ribs, releasing the adsorption state at the bottom of the juice collection plate 6. This makes it easy to pull the screw 5 out of the juice collection plate 6, allowing for easy and convenient disassembly and cleaning for the user.

[0078] It should be noted that the first preset time refers to the maximum time required for juicing a specific ingredient, as set by the program. The second preset time is a fixed time, such as 2 minutes or any time set by the program.

[0079] Specifically, when the screw 5 rotates in reverse, it drives the material to move upward, and the grinding chamber 63 is connected to the extrusion gap 44; when the screw 5 rotates in the forward direction, it drives the material to move downward, and the grinding chamber 63 and the extrusion gap 44 are isolated by the material.

[0080] It is understandable that the connection or isolation between the grinding chamber 63 and the extrusion gap 44 can be switched. Reversing the flow causes the material in the grinding chamber 63 to be spiraled out along the upward direction of the spiral ribs, thus connecting the grinding chamber 63 and the extrusion gap 44. This not only releases the suction state at the bottom of the juice collection plate 6 after juicing, allowing the screw 5 to be easily pulled out of the collection plate 6, but also allows the juice extracted from the grinding chamber 63 to flow upwards through the fine grinding area and the inner positioning ring surface 65 to the annular juice outlet channel 67, ensuring timely discharge efficiency and preventing prolonged soaking of the residue and subsequent back-suction, which would affect the juice yield. Simultaneously, when the grinding chamber 63 and the extrusion gap 44 are isolated by the material, the adhesion force between the side wall of the grinding chamber 63 and the screw 5 is strengthened, increasing the friction force on the material within the grinding chamber 63. This allows the material in the grinding chamber 63 below the step surface 64 to be ground more thoroughly, achieving fine grinding and further improving the juice yield. In summary, the grinding chamber 63 and the extrusion gap 44 can switch between connected and isolated states by reversing the direction of rotation. This not only prevents the juice from remaining in the grinding chamber 63 for a long time and affecting the taste, thus ensuring the juice extraction efficiency, but also improves the juice yield.

[0081] In another embodiment, the difference from the previous embodiment is that when the drive unit in the main unit 1 drives the screw 5 to work for less than the first preset time, the drive unit receives a stop signal from the motor drive board; that is, the user clicks the cancel juicing button, and the juicer stops working before the material is completely juiced; then the drive unit drives the screw 5 to reverse the second preset time, so that the grinding chamber 63 and the extrusion gap 44 are connected, and the grinding chamber 63 is connected to the outside of the juice collection plate 6 through the extrusion gap 44. The technical effect is the same as in the previous embodiment, which is to make the screw 5 easy to separate from the juice collection plate 6 when disassembled, and will not be described again.

[0082] In yet another embodiment, such as Figure 2 , Figure 3 , Figure 4 , Figure 9 , Figure 10 , Figure 11As shown, the difference from the previous embodiment is that the juice collection plate 6 is located on the outer periphery of the juice extraction net 4 and forms an annular juice outlet channel 67. A connecting channel is formed between the upper limit ring 42 and the stepped surface 64, and the grinding chamber 63 and the annular juice outlet channel 67 are connected through the connecting channel.

[0083] It should be noted that there is an installation gap between the side wall of the upper limit ring 42 and the inner positioning ring surface 65. The connecting channel connects to this installation gap, which in turn connects to the juice outlet gap between the upper and lower teeth 66. The juice outlet gap connects to the annular juice outlet channel 67. Thus, the grinding chamber 63 is connected to the annular juice outlet channel 67 in sequence through the connecting channel, the installation gap, the juice outlet gap, and the annular juice outlet channel 67. The connecting channel can be formed in several ways: the bottom wall of the upper limit ring 42 is concave to form a first pressure relief groove; or, the stepped surface 64 is concave to form a first pressure relief groove; or, the bottom wall of the upper limit ring 42 has multiple spaced first protrusions, with a first pressure relief groove formed between two adjacent first protrusions; or, the stepped surface 64 has multiple spaced second protrusions, with a first pressure relief groove formed between two adjacent second protrusions, etc.

[0084] Understandably, after juicing ends or stops midway, the drive unit reverses the screw 5, causing the material in the grinding chamber 63 to be spiraled out along the upward direction of the spiral ribs, connecting the grinding chamber 63 and the extrusion gap 44 to release the adsorption state at the bottom of the juice collection plate 6. At the same time, after juicing ends or stops midway, the material in the grinding chamber 63 spirals upward due to the reversal, creating a gap in the grinding chamber 63 that can connect with the connecting channel. The connecting channel connects the grinding chamber 63 and the annular juice outlet channel 67. During the reversal, the grinding chamber 63 is not only connected to the extrusion gap 44 axially, but also to the radially outer annular juice outlet channel 67, greatly increasing the speed at which the bottom of the juice collection plate 6 is released from the adsorption state, and making it easier for the screw 5 to be pulled out of the juice collection plate 6.

[0085] In addition to the preferred embodiments described above, the technical solutions protected by this utility model 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 technical solutions in any one embodiment with technical solutions in one or more other embodiments, are within the protection scope of this utility model. Although this utility model 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 utility model are within the scope of protection claimed by this utility model.

Claims

1. A juicing assembly, characterized by, The application relates to a juicer, which comprises: a juicing net provided with an upper limiting ring at the bottom; a screw rod longitudinally arranged in the juicing net; a juice collecting disc in plug-in cooperation with the juicing net and provided with an inner positioning ring surface abutting against the outer side of the upper limiting ring; the bottom of the juice collecting disc is concave downward to form a grinding cavity at the inner side below the inner positioning ring surface, a step surface is formed between the inner positioning ring surface and the grinding cavity, the bottom of the upper limiting ring abuts against the step surface, the screw rod is in clearance cooperation with the upper limiting ring, the bottom of the screw rod penetrates through the upper limiting ring along the axial direction downward and is located in the grinding cavity.

2. The juicing assembly of claim 1, wherein, The inner side wall of the upper limiting ring is convex to the step surface.

3. The juicing assembly of claim 1, wherein, The inner side wall of the grinding cavity is convex to form a second grinding rib, and the second grinding rib is in cooperation with the lower outer periphery of the screw rod.

4. The juicing assembly of claim 1, wherein, The inner side wall of the upper limiting ring is convex to form a first grinding rib, and the first grinding rib is arranged above the step surface.

5. The juicing assembly of claim 1, wherein, The inner wall of the upper limiting ring is convex to form a first grinding rib, and the inner side wall of the grinding cavity is convex to form a second grinding rib, and the first grinding rib and the second grinding rib are arranged in a circumferential direction.

6. The juicing assembly of claim 1, wherein, An extrusion gap is arranged between the screw rod and the juicing net above the grinding cavity, and the grinding cavity and the extrusion gap are in communication or isolation.

7. The juicing assembly of claim 3, wherein, The bottom of the juice collecting disc is extended upward to form lower plug-in teeth in plug-in cooperation with the juicing net, the lower plug-in teeth are arranged above the inner positioning ring surface, an plug-in tooth groove is formed between two adjacent lower plug-in teeth, and the second grinding rib and the plug-in tooth groove are arranged in a circumferential direction.

8. The juicing assembly of claim 5, wherein, The screw rod is externally provided with a spiral rib, and the clearance between the spiral rib and the first grinding rib is smaller than the clearance between the spiral rib and the second grinding rib.

9. The juicing assembly of claim 1, wherein, The screw rod is provided with a reduced diameter section, the reduced diameter section is provided with a connecting surface, the connecting surface is located above the step surface along the axial direction, and the connecting surface abuts against the upper end of the upper limiting ring.

10. The juicing assembly of claim 1, wherein, The axial height of the grinding cavity is greater than or equal to the axial height of the inner side wall of the upper limiting ring.

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