Extrusion type normal juice machine

Abstract

The utility model provides an extrusion type normal juice machine which comprises a main machine internally provided with a motor, a juice collecting cavity formed in the main machine, an extrusion assembly detachably arranged in the juice collecting cavity and a feeding cover covering the juice collecting cavity, the extrusion assembly comprises a screw and a juice extrusion cylinder arranged outside the screw in a sleeving mode, and the juice extrusion cylinder comprises an extrusion section and a filtering section. The filtering section is provided with a plurality of squeezing pieces arranged in the axial direction, the squeezing pieces are arranged at the lower end of the squeezing section and distributed in the circumferential direction of the juice squeezing barrel, at least part of the squeezing pieces can rotate in the axial direction, when the screw rotates, the squeezing pieces are pushed to rotate so as to be mutually overlapped, juice outlet channels are formed between the adjacent squeezing pieces, and the juice outlet channels extend in the circumferential direction of the juice squeezing barrel. Extrusion pieces are arranged, the multiple extrusion pieces are arranged in the circumferential direction, the adjacent extrusion pieces can be mutually overlapped to form a juice outlet channel, and the extrusion pieces jointly surround the outer portion of the screw. The juice outlet channel is guaranteed to be formed only through the acting force of the screw rod, when the juice squeezing barrel needs to be cleaned, a user can rotate the squeezing piece by himself, and cleaning is convenient.

Description

Technical Field

[0001] The utility model relates to the field of food processing, in particular to an extrusion type juicer which realizes juice extraction by screw extrusion. Background Art

[0002] The juicer uses screw extrusion to separate the juice and pomace of the ingredients. Usually, the screw is set at a lower processing speed to avoid oxidation of the juice, thereby improving the processed taste of the juice. The existing juicer usually uses a filter or filter grid to separate the juice and pomace. The filter structure is easily blocked by pomace during juice extraction, which affects the normal juice extraction. The juice extraction efficiency is low and affects the juice extraction rate of the ingredients. The technical solution using the filter structure is gradually weakened and eliminated.

[0003] In another scheme, a filtering bar structure is used to filter the juice. The bars are deformed when squeezed and pushed by the screw, so that the gaps between the bars become larger. On the one hand, the discharge of juice is accelerated, and on the other hand, the pomace remaining in the gaps between the bars is squeezed out by the subsequent ingredients, avoiding the problem of pomace blockage. However, such a scheme has a contradiction: in order to reduce the residue in the juice, the gaps between the bars need to be as small as possible, but a small gap will make it difficult to clean the pomace remaining in the gaps between the bars. In other words, the existing bar scheme can only choose a balance in the size of the gap setting, but cannot meet the needs of both aspects simultaneously.

[0004] There is another technical solution for the existing filter bars, which is to set two groups of detachable interlocking bars, and each group of bars is arranged at an interval. When the two groups of bars are interlocked, a gap for juice flow is formed between the interlocking bars. When cleaning the filter bars, the two bars are separated from each other, and the fruit residue remaining in the gap can be easily cleaned.

[0005] Similar to the single-group grid bar solution, since filtering is achieved by relying on the gap between the grid bars, if the gap between the grid bars is set too small, it is not convenient for the production and processing of the grid bars. If the gap between the inserted grid bars is set too small, it is difficult for the two groups of grid bars to be inserted into each other. Even if the inserted grid bar structure can achieve a smaller juice outlet gap, the juice outlet gap varies under the extrusion of the screw, affecting the taste of the juice. In addition, after the grid bars are used for a long time, on the one hand, the grid bars are squeezed and deformed, causing the gap to gradually increase. On the other hand, the wear of the grid bars will also cause the gap between the grid bars to increase, and ultimately affect the juice outlet effect of the juicer, reduce the taste of the juice, and thereby reduce the user experience of the juicer.

[0006] The above scheme has the problem that the gaps between the bars become larger during squeezing, causing the residue to be discharged along with the juice. In order to solve the above technical problems, CN206995062U discloses an extrusion juicer, in which a plurality of bars are provided and the side walls of adjacent bars partially overlap to form a residue juice filtering gap, and the residue juice filtering gap gradually becomes smaller under the squeezing force of the screw on the material. With such a configuration, as the bars are squeezed outward, the side walls of the bars overlap each other, and the filtering gap gradually becomes smaller under the squeezing force, which can prevent the residue from being discharged from the gap. In this way, the technical problems existing in the prior art can be partially solved.

[0007] However, the filtering scheme of the above-mentioned bars still has the following technical problems: since the bars are arranged in the filtering part, when not squeezed by the screw, the filtering gaps arranged between the bars themselves are in a fixed state. If the filtering gaps between the bars are set too small, on the one hand, it is not conducive to the production and processing of the bars, and on the other hand, the too small gaps bring great difficulties to the cleaning of the bars; if the filtering gaps between the bars are set too large, then when the bars are squeezed and overlapped by the screw, the deformation of the bars themselves will also increase, and the bars themselves will be deformed when used for a long time, which will affect the normal juice discharge of the bars and bring difficulties to cleaning. In other words, this scheme still has the contradiction between the setting method of the filtering gaps when the bars are fixed and the juice discharge and cleaning, and still cannot fundamentally solve the problems existing in the prior art. Utility Model Content

[0008] The utility model aims to provide an extruding juicer which relies on the extrusion of a screw to maintain a juice gap when squeezing juice, thereby always maintaining a juice extraction effect, and can adjust the juice gap when cleaning is required for easy cleaning.

[0009] The utility model provides an extrusion type juicer, comprising a main unit with a motor, a juice collecting chamber arranged on the main unit, a detachable extrusion assembly arranged in the juice collecting chamber, and a feeding cover covering the juice collecting chamber, wherein the extrusion assembly comprises a screw and a juice squeezing barrel sleeved outside the screw, wherein the juice squeezing barrel comprises an extrusion section and a filtering section, wherein the filtering section is provided with a plurality of extrusion sheets arranged along the axial direction, wherein the extrusion sheets are arranged along the circumference of the juice squeezing barrel, and at least part of the extrusion sheets can rotate along the axial direction, and when the screw rotates, the extrusion sheets are pushed to overlap each other and form a juice outlet channel between adjacent extrusion sheets, wherein the juice outlet channel connects the inside and outside of the juice squeezing barrel and comprises a portion extending along the circumference of the juice squeezing barrel. The extrusion section and the filtering section are provided, and the bulk material is crushed in the extrusion section, and then flows to the filtering section through the push of the screw, where the material is ground to produce juice, and filtered to achieve residue and juice separation. By setting extrusion sheets, a plurality of the extrusion sheets are arranged along the circumferential direction, and adjacent extrusion sheets can overlap and fit each other to form a juice outlet channel, and a plurality of the extrusion sheets are together surrounding the outside of the screw. It should be noted that the overlapping and fitting here refers to the overlapping parts of adjacent extrusion sheets in the circumferential direction, rather than the adjacent extrusion sheets being adjacent to each other in the circumferential direction, so that when the extrusion sheets are squeezed by the screw, the extrusion sheets located on the inner side have a tendency to move outward and continuously fit with the extrusion sheets on the outer side in the radial direction to form a juice outlet channel at the fitting position. In this way, the problem of the increase in the gap between the bars when the bars are squeezed in the prior art can be avoided, and the juice outlet channel can be always kept within the preset size range. After long-term use, the size of the juice outlet channel will not be changed due to product wear, so that the juicer can always maintain high efficiency and ensure that the juice outlet effect is always in the best state. Some of the extrusion sheets are arranged to be axially rotatable. On the one hand, the extrusion sheets can overlap and fit with adjacent extrusion sheets when the screw is extruded to form a juice outlet channel. On the other hand, when the juice barrel needs to be cleaned, the user can rotate the extrusion sheets by himself to make the adjacent extrusion sheets move away from each other and open the juice outlet channel. In this way, the pomace remaining in the juice outlet channel can be easily cleaned, and the need for cleaning the original juice machine is met. Due to the movable arrangement of the extrusion sheets, it is not necessary to set a specific preset value for the fitting gap between the extrusion sheets, but only to assemble the extrusion sheets. When the extrusion sheets are squeezed during operation, they first rotate and then overlap and fit with adjacent extrusion sheets. Only when they are subjected to excessive extrusion force, the extrusion sheets will be deformed and excessively fit with adjacent extrusion sheets. In other words, the juice outlet channel generated by the scheme of the present application depends on the rotation and fit of the extrusion sheets. In this way, when the juice barrel needs to be cleaned, it is only necessary to move the movable extrusion sheets to completely open the juice outlet channel, that is, the pomace remaining between the extrusion sheets can be easily cleaned.The axial rotation here means that the rotation center of the extrusion sheet is in the same direction as the axis of the juice barrel, but it does not limit the axis of the extrusion sheet to coincide with or be completely parallel to the axis of the juice barrel. The extrusion section and the filtering section of the juice barrel are usually arranged in a cone shape, so that large pieces of material can easily enter the extrusion space of the screw and the juice barrel, and the smaller size of the bottom can crush the large pieces of material to squeeze out juice. Therefore, there will be a certain angle between the rotation axis of the extrusion sheet and the center line of the juice barrel. It should be noted that when the extrusion sheet rotates, two adjacent extrusion sheets can be arranged to directly fit each other and form a juice outlet channel at the gap in the fit; similarly, the extrusion sheet can fit in other positions, for example, the extrusion sheet fits on the inner wall of the juice barrel, and there is a gap between the two adjacent extrusion sheets to form the juice outlet channel. That is to say, for two adjacent extrusion sheets, when subjected to the extrusion force transmitted by the screw through the food, the two extrusion sheets overlap with each other and form a juice outlet channel in the circumferential direction. The two extrusion sheets can be directly fitted together, or they can be indirectly fitted together through other components such as a juicer and form a juice outlet channel between them.

[0010] Preferably, the extrusion sheet includes a body and a fitting portion, the axis of the extrusion sheet passes through the body, the fitting portion is formed by the body extending outward in the radial direction, and the fitting portion fits with the adjacent extrusion sheet to form the juice outlet channel when being squeezed. The body and the fitting portion are provided, the axis of the extrusion sheet passes through the body, the extrusion sheet can rotate relative to the extrusion section of the juice squeezing cylinder through the body, and then the fitting portion is provided to overlap and fit with the adjacent extrusion sheet, so that the structure of the fitting portion is conveniently provided to adjust the juice outlet channel formed by the fitting portion. The fitting portion is formed by the body extending outward in the radial direction, and the radial direction here refers to the radial direction of the body itself, that is, the body part usually constituted by a rotating body, extending outward from the center to form the fitting portion, so that the extrusion portion is easier to move to fit with the adjacent extrusion sheet when being squeezed, and even the fitting portion will produce a certain deformation during squeezing, so that the fitting portion and the adjacent extrusion sheet fit more closely, thereby ensuring the effect of juice outlet. Generally speaking, in order to ensure that the fitting portion fits with the adjacent extruded sheet when being squeezed by the screw, the fitting portion is arranged on the inner side close to the screw. When the fitting portion is squeezed by the screw, it will move outward to overlap and fit with the adjacent extruded sheet, and form a juice outlet channel between the two.

[0011] Preferably, the extrusion sheet further comprises an extension portion, wherein the extension portion and the fitting portion are respectively located on both sides of the rotation axis of the body, and the extension portion fits with the fitting portion of the adjacent extrusion sheet to form the juice outlet channel. The extension portion is further provided, and the extension portion and the fitting portion are provided on opposite sides relative to the axis of the body, so that when the fitting portion is located on the inner side close to the screw, the extension portion is provided on the outer side away from the screw, so that when two adjacent extrusion sheets of the same structure are squeezed by the screw, the fitting portion on the inner side moves outward, driving the body to rotate and further driving the extension portion to move inward, so that the fitting portion overlaps and fits with the extension portion of the downstream extrusion sheet, and the extension portion overlaps and fits with the fitting portion of the upstream extrusion sheet, so that juice outlet channels can be formed on both sides of the extrusion sheet, thereby improving the juice outlet efficiency, and when cleaning, the extension portion and the fitting portion can be better separated to form a gap size large enough for easy cleaning.

[0012] Preferably, the juice squeezer also includes a fixing ring located at the bottom end of the filtering section, and the bottom end of the extrusion sheet is rotatably connected to the fixing ring. The fixing ring is used to fix the bottom of the extrusion sheet, so as to avoid the bottom of the extrusion sheet being easily squeezed by the screw and deformed when it is suspended in the air, thereby improving the strength of the filtering section of the juice squeezer and ensuring the juice extraction effect. Of course, a fixing structure for fixing the extrusion sheet can also be directly provided at the bottom of the juice collecting chamber to fix the suspended end of the bottom of the extrusion sheet.

[0013] Preferably, the extrusion sheets are arranged in an even number, and two adjacent extrusion sheets include a fixed extrusion sheet and a movable extrusion sheet. The movable extrusion sheet fits with the adjacent fixed extrusion sheet under the push of the screw to form the juice outlet channel. The extrusion sheets are arranged in an even number, and fixed extrusion sheets and movable extrusion sheets are arranged. The fixed extrusion sheets and the movable extrusion sheets form a group with each other. The fixed extrusion sheets can increase the strength of the extrusion sheets, especially the fixed extrusion sheets and the extrusion sections are integrally formed, which has better strength. The movable extrusion sheet is arranged between two adjacent fixed extrusion sheets, which ensures that the movable extrusion sheet overlaps and fits with the fixed extrusion sheet to form a juice outlet channel when it is squeezed by the screw, and also moves during cleaning to open the juice outlet channel for easy cleaning. The structure of the juicer is guaranteed to be reliable and the juice outlet effect is stable and reliable.

[0014] Preferably, the fixed extrusion sheet is formed to extend along the circumferential direction, and the inner side wall of the upstream end of the fixed extrusion sheet is provided with a placement portion, the movable extrusion sheet includes a body and a fitting portion, the fitting portion fits with the placement portion to form the juice outlet channel, and the inner side walls of the fixed extrusion sheet and the movable extrusion sheet are located on the same circumference. When the screw is rotated and extruded in the juice squeezing barrel, when the screw moves from the first position to the second position of the juice squeezing barrel, the first position that first contacts the screw is defined as the upstream side relative to the second position, and the second position that is then squeezed by the screw is defined as the downstream side relative to the first position. The fixed extrusion sheet is formed by extending in the circumferential direction. In simple terms, from the transverse cross section, the fixed extrusion sheet is fan-shaped, that is, it occupies a certain arc length in the circumferential direction. A placement portion is set on the upstream inner side wall of the fixed extrusion sheet to accommodate the fitting portion fitted thereto. In this way, when the movable extrusion sheet overlaps and fits with the fixed extrusion sheet, the inner side wall formed by the movable extrusion sheet and the fixed extrusion sheet on the inner wall of the juice squeezing barrel is located on the same circumference, so that it can better fit and extrude with the screw, and can ensure the extrusion gap between the screw and the juice squeezing barrel, ensuring more sufficient extrusion. Of course, being on the same circumference here means being on the same circumference within an acceptable tolerance range, and is not limited to being completely on the theoretical standard circumference.

[0015] Preferably, the outer side wall of the downstream end of the fixed extrusion sheet is provided with a notch, and the movable extrusion sheet further includes an extension portion, the extension portion and the fitting portion are respectively located on both sides of the axis of the body, and the extension portion and the notch portion fit together to form the juice outlet channel. The notch portion is provided at the downstream end of the fixed extrusion sheet, and the extension portion is provided at the adjacent movable extrusion sheet, and the extension portion and the notch portion fit together to form the juice outlet channel, so that the juice outlet channel is realized at the upstream and downstream ends of the movable extrusion sheet at the same time, thereby accelerating the juice outlet efficiency of the juice squeezing cylinder.

[0016] Preferably, the juicer is provided with a limit table, which blocks the extrusion sheet when the extrusion sheet rotates. Since the screw and the juicer interact with each other during operation to extrude, grind and crush the food materials, there is a large interaction force between the two. Generally speaking, the screw is set as a solid and can withstand a large force, while the juicer needs to be provided with a juice outlet structure, which is easily deformed by the extrusion. Although the present application sets the extrusion sheets to overlap with each other to withstand the extrusion force of the screw, there may still be excessive force. Therefore, a limit table is further provided. The limit table blocks the excessive rotation of the extrusion sheet when the extrusion sheet is subjected to excessive extrusion force, withstands the force applied by the screw on the extrusion sheet, and avoids damage to the extrusion sheet when it is over-extruded, so as to improve the reliability of the juicer.

[0017] Preferably, the extrusion sheet is provided with a juice outlet groove, and the juice outlet groove is arranged at the joint of adjacent extrusion sheets, and the juice outlet groove and the gap between adjacent extrusion sheets together constitute the juice outlet channel. When the front and rear adjacent extrusion sheets are completely in contact, although the gap between them is small, which helps to improve the purity of the juice, it will cause slow juice outlet, poor juice outlet efficiency, and reduce the juice outlet rate of the food. Therefore, a juice outlet groove is provided at the adjacent extrusion sheets, and the juice outlet groove is used to increase the cross-sectional area of ​​the juice outlet channel to improve the juice outlet efficiency of the juice outlet channel. At the same time, the overlapping extrusion sheets are used, especially the juice outlet channel formed by the overlapping extrusion sheets. The flow direction of the juice is opposite to the direction of the screw. This can prevent the residue from being discharged from the juice outlet channel, and can also ensure the purity of the juice and improve the taste of the juice.

[0018] Preferably, the extrusion sheet is provided with extrusion ribs along the axial direction of the juice squeezing barrel, and the extrusion ribs protrude toward the center of the juice squeezing barrel. Further, an extrusion sheet is provided in the axial direction of the extrusion sheet, and the extrusion ribs are used to increase the extrusion fit with the screw. In particular, the extrusion ribs protrude toward the center of the juice squeezing barrel, which can reduce the fit clearance between the juice squeezing barrel and the screw, thereby improving the juice extraction efficiency of the juicer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the first embodiment of the squeeze juicer of the utility model.

[0020] Figure 2 This is a schematic diagram of the structural decomposition of the first embodiment of the squeeze juicer of the utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the juice squeezing cylinder of the first embodiment of the squeezing juicer described in the utility model.

[0022] Figure 4 This is a cross-sectional view of the juice cylinder structure of the first embodiment of the squeeze juicer described in the utility model.

[0023] Figure 5 This is a cross-sectional view of the structure of the juicer in the juice-extracting state of the first embodiment of the squeeze-type juicer of the utility model.

[0024] Figure 6 This is a cross-sectional view of the structure of the juicer in the first embodiment of the squeeze juicer of the utility model in a clean state.

[0025] Figure 7 This is a schematic diagram of the barrel structure of the first embodiment of the squeeze juicer described in the utility model.

[0026] Figure 8 This is a schematic diagram of the structure of the movable extrusion plate of the first embodiment of the extrusion type juicer described in the utility model.

[0027] Fig. 9This is a schematic diagram of the second position structure of the movable extrusion plate of the first embodiment of the extrusion juicer described in the utility model.

[0028] Fig.10 This is a schematic diagram of the fixing ring structure of the first embodiment of the squeeze juicer of the utility model.

[0029] Fig.11 This is a schematic diagram of the second position structure of the fixing ring of the first embodiment of the squeeze juicer described in the utility model.

[0030] Fig.12 This is a cross-sectional view of the juice squeezing barrel of the second embodiment of the squeezing juicer described in the utility model.

[0031] Fig.13 This is a cross-sectional view of the structure of the juice cylinder of the second embodiment of the squeeze juice machine of the utility model in the juice-discharging state.

[0032] Fig.14 This is a cross-sectional view of the structure of the juice cylinder of the second embodiment of the squeeze juicer of the utility model in the clean state.

[0033] The corresponding names in the figure are as follows:

[0034] 1. Feeding cover; 2. Juice collecting chamber; 21. Slag outlet; 22. Juice outlet; 23. Positioning ribs; 24. Juice discharge groove; 25. Limiting protrusion; 26. Center boss; 3. Screw; 31. Screw body; 32. Screw shaft; 33. Screw teeth; 4. Juice squeezing cylinder; 40. Auxiliary filtering hole; 41. Cylinder; 411. Upper limit platform; 42. Movable squeezing sheet; 421. Main body; 4211. Through hole; 422. Fitting part; 4221. Stop rib; 4 23. Extrusion ribs; 424. Extension; 425. Filter ribs; 426. Juice outlet groove; 43. Fixed extrusion sheet; 431. Fixed groove; 432. Placement portion; 433. Notch portion; 44. Fixed ring; 442. Boss; 4421. Fixed hole; 4422. Shaft hole sink; 443. Lower limit platform; 45. Juice extrusion ribs; 46. Limit groove; 5. Juice outlet channel; 61. Rotating shaft; 62. Upper shaft hole; 63. Lower shaft hole; 64. Rotating shaft. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0037] In this application, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. As for the positional relationships such as "upstream" and "downstream", they are based on the positional relationships when the fluid flows normally.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] Embodiment 1.

[0041] As a first embodiment of the squeeze juicer described in the utility model, Figure 1-11As shown, the juicer includes a main unit (not shown), a juice collecting chamber 2, an extrusion assembly and a feeding cover 1. The main unit is provided with a motor (not shown). The juice collecting chamber 2 is detachably arranged on the main unit. The extrusion assembly is provided in the juice collecting chamber, and the extrusion assembly includes a screw 3 and a juice squeezing barrel 4. The juice squeezing barrel 4 is sleeved on the outside of the screw 3. The feeding cover 1 covers the upper part of the juice collecting chamber 2 to close the upper opening of the juice collecting chamber 2. Food is put into the extrusion assembly through the opening of the feeding cover 1. The screw 3 is driven to rotate by the motor to squeeze, cut and grind the food between the screw 3 and the juice squeezing barrel 4 to fully crush the food. The juice collecting chamber 2 is provided with a slag outlet 21 and a juice outlet 22. The juice is filtered by the juice squeezing barrel 4 and then collected by the juice collecting chamber 2 and discharged through the juice outlet 22. At the same time, the pomace is also collected in the juice collecting chamber 2 and discharged from the slag outlet 21. The screw 3 includes a screw body 31 , a screw shaft 32 and screw teeth 33 . Preferably, the screw shaft 32 is a metal piece and is integrally formed with the screw body 31 , and the screw teeth 33 are arranged on the outer surface of the screw body 31 .

[0042] like Figure 2-6 As shown, the juice barrel 4 includes an extrusion section and a filtering section. Preferably, the extrusion section is arranged at the upper section of the juice barrel 4, and the filtering section is arranged at the lower section of the juice barrel 4. The extrusion section includes a barrel body 41, and the filtering section includes a plurality of extrusion sheets. The extrusion sheets are arranged in a plurality and arranged circumferentially along the lower end of the barrel body 41. Preferably, the extrusion sheets are arranged in an even number, and two adjacent extrusion sheets are respectively a movable extrusion sheet 42 and a fixed extrusion sheet 43, thereby clamping the movable extrusion sheet 42 between two adjacent fixed extrusion sheets 43. The movable extrusion sheet 42 can be rotatably arranged along the axial direction. When the screw 3 is working, it pushes the food and further pushes the movable extrusion sheet 42, so that the movable extrusion sheet 42 rotates to overlap and fit with the adjacent fixed extrusion sheet 43, thereby forming a juice outlet channel 5 between the movable extrusion sheet 42 and the fixed extrusion sheet 43.

[0043] The side wall of the barrel 41 is provided with auxiliary filtering holes 40. When the screw 3 is extruded and matched with the extrusion section of the barrel 41, part of the juice produced by extrusion can be discharged from the auxiliary filtering holes 40, so as to avoid that when all the juice needs to be discharged from the filtering section, the amount of juice is too large, so that the juice cannot be effectively discharged and is driven by the pomace to be discharged from the residue outlet. The inner wall of the barrel 41 is also provided with juice squeezing ribs 45. The juice squeezing ribs 45 can be only provided in the extrusion section, and the juice squeezing ribs 45 can also extend downward from the extrusion section to the filtering section. The juice squeezing ribs 45 can cooperate with the screw 3 to reduce the gap between the screw 3 and the inner wall of the juice squeezing barrel 4, so as to improve the extrusion and crushing efficiency of the extrusion assembly and improve the juice yield.

[0044] The juice squeezing barrel 4 also includes a fixed ring 44 arranged at the lower end of the squeezing sheet, wherein the bottom end of the movable squeezing sheet 42 is rotatably connected to the fixed ring 44, and the bottom end of the fixed squeezing sheet 43 is plugged and fixedly connected to the fixed ring. Preferably, a rotating shaft 61 is provided at both axial ends of the movable squeezing sheet 42, the barrel body 41 is provided with an upper shaft hole 62, and the fixed ring 44 is provided with a lower shaft hole 63. The movable squeezing sheet 42 is clamped between the barrel body 41 and the fixed ring 44 by the rotating shaft 61, and is rotatably arranged along the axial direction of the rotating shaft 61. It should be noted that the juice squeezing barrel 4 is not arranged in a cylindrical shape, but as Figure 4 As shown, it is a cone with a larger top and a smaller bottom, and preferably the extrusion section has a larger angle, while the filtering section has a smaller angle. This is because the food has not been cut and crushed when it enters between the screw and the juice squeezing barrel, and the large-angle extrusion section can increase the space size between the extrusion section and the screw to accommodate larger food; when the food enters the filtering section after being squeezed and cut, the smaller inclination angle makes the gap between the screw and the filtering section smaller, which can grind the food more thoroughly and increase the juice yield. Therefore, the axial rotation setting of the movable extrusion sheet 42 refers to the rotation along the axial direction of the movable extrusion sheet 42 itself, rather than the axial direction that is completely equal to the center of the juice squeezing barrel 4.

[0045] The bottom wall of the juice collecting chamber 2 is provided with an annular positioning rib 23, and the juice squeezing tube 4 can be inserted into the positioning rib 23 so that the juice squeezing tube 4 and the juice collecting chamber 2 are fixedly matched at the bottom end. The center of the bottom wall of the juice collecting chamber 2 is also provided with a central boss 26, and the central boss 26 can extend into the bottom end of the screw 3. The positioning rib 23 and the central boss 26 divide the bottom wall of the juice collecting chamber 2 into a juice discharge part located outside the positioning rib 23 and a slag discharge part located inside the positioning rib 23, wherein the juice discharge part is connected to the juice outlet 22, and the slag discharge part is connected to the slag outlet 21. The side wall of the positioning rib 23 is also provided with a juice discharge groove 24, and the juice discharge groove 24 can discharge the juice flowing out along the filtering section to the juice discharge part. A limiting protrusion 25 is further provided on the inner side of the positioning rib 23 , and a limiting groove 46 matching with the limiting protrusion 25 is provided on the bottom surface of the fixing ring 44 . The limiting protrusion 25 is locked in the limiting groove 46 to prevent the juice squeezing tube 4 from rotating.

[0046] like Figure 3-11As shown, the movable extrusion sheet 42 includes a body 421 and a fitting portion 422. The rotating shaft 61 is located at both ends of the body 421 and extends outward, so that the axis of the extrusion sheet passes through the body 421. The fitting portion 422 is formed by the body 421 extending outward in the radial direction, that is, on the cross section of the movable extrusion sheet 42 perpendicular to the axis, the fitting portion 422 extends outward. When the movable extrusion sheet 42 and the fixed extrusion sheet 43 are assembled in sequence, the fitting portion 422 is located on the inner side of the fixed extrusion sheet 43. When the screw 3 is working, it pushes the material and further pushes the fitting portion 422 to rotate outward to overlap with the fixed extrusion sheet 43 and form a juice outlet channel 5 between adjacent extrusion sheets.

[0047] Preferably, the inner side wall of the fitting portion 422 is further provided with an extrusion rib 423, which is extended along the axial direction of the juice squeezing barrel 4 and protrudes toward the center of the juice squeezing barrel 4 to be extruded and matched with the screw 3 to improve the grinding efficiency between the screw 3 and the juice squeezing barrel 4. The outer wall of the fitting portion 422 is also provided with a filter rib 425. When the movable extrusion sheet 42 is fitted with the fixed extrusion sheet 43, the filter rib 425 is fitted with the fixed extrusion sheet 43. A juice outlet groove 426 is formed between the filter ribs 425. The gap between the filter ribs 425 and the juice outlet groove 426 together constitute the juice outlet channel 5. The juice outlet channel 5 connects the inside and outside of the juice squeezing barrel 4 to guide the juice squeezed by the screw 3 and the juice squeezing barrel 4 out of the juice squeezing barrel 4. The juice outlet channel 5 includes a portion extending in the circumferential direction of the juice squeezing barrel. This arrangement enables the extrusion sheet to change the circumferential juice outlet channel when it is squeezed by the screw without changing the cross-sectional area of ​​the juice outlet channel to ensure the juice outlet effect of the juice outlet channel. The use of the filter rib 425 to form the juice outlet groove 426 and further form the juice outlet channel can increase the juice outlet area of ​​the juice outlet channel, thereby improving the juice outlet efficiency of the juice squeezing barrel. Since the movable extrusion sheet can rotate during screw extrusion and make adjacent extrusion sheets fit together, even when the movable extrusion sheet is subjected to a large extrusion force, the suspended juice outlet groove part will also be deformed to reduce the gap of the juice outlet groove, thereby reducing the area of ​​the juice outlet channel to improve the taste of the juice. This is because, for different processed ingredients, for example, when processing soft ingredients such as watermelon, the juice yield of the ingredients is high, and the juice needs to be discharged quickly, so a larger juice outlet channel is required. Since the ingredients are soft, the extrusion force applied by the screw on the movable extrusion sheet through the ingredients is relatively small, and the area of ​​the juice outlet channel between the movable extrusion sheet and the fixed extrusion sheet is increased, thereby ensuring the juice outlet efficiency and allowing the juice to be discharged quickly; while for hard ingredients such as carrots, the juice yield of the ingredients is low and contains more pomace fibers, and the extrusion force applied by the screw on the movable extrusion sheet through the ingredients is relatively large, which can fully squeeze the movable extrusion sheet and the fixed extrusion sheet into fit, and by reducing the area of ​​the juice outlet channel, the pomace is avoided from being discharged from the juice outlet channel, thereby ensuring the taste of the juice, and the relatively low juice yield of the ingredients can also meet the juice outlet speed requirements.

[0048] Preferably, the movable extrusion sheet 42 is further provided with an extension portion 424, and the extension portion 424 is arranged on the opposite side of the body 421 and the fitting portion 422, so that when the movable extrusion sheet 42 is rotating, when the juice outlet channel 5 is formed between the fitting portion 422 and the adjacent fixed extrusion sheet 43, the same juice outlet channel 5 is formed between the extension portion 424 and the adjacent fixed extrusion sheet 43 on the other side. Such an arrangement can increase the juice outlet area between the movable extrusion sheet 42 and the fixed extrusion sheet 43, thereby improving the juice outlet efficiency of the juice squeezing barrel 4. Although the fixed extrusion sheet 43 does not rotate when being squeezed by the screw 3 to ensure the size of the juice outlet channel between the extension portion 424, the fitting portion 422 will drive the extension portion 424 to move inward when being squeezed, and fit on the outer side of the fixed extrusion sheet 43 to form a juice outlet channel 5 of a preset size, and can always remain within the preset size range.

[0049] Preferably, the fixed extrusion sheet 43 is formed extending along the circumferential direction on the transverse cross section of the juice squeezing tube 4, and the inner side wall of the upstream end of the fixed extrusion sheet 43 is provided with a placement portion 432, and the placement portion 432 is formed by being recessed outward along the inner side wall of the fixed extrusion sheet 43, and the fitting portion 422 fits on the placement portion 432. Further, the outer side wall of the downstream end of the fixed extrusion sheet 43 is provided with a notch portion 433, and the notch portion 433 is formed by being recessed inward along the outer side wall of the fixed extrusion sheet 43, and the extension portion 424 is filled in the notch portion 433 when cooperating with the fixed extrusion sheet 43. Thus, when the movable extrusion sheet 42 fits with the fixed extrusion sheet 43, the inner side walls of the movable extrusion sheet 42 and the fixed extrusion sheet 43 are located on the same circumference. The same circumference here means that on the transverse section of the juice squeezing cylinder, the radius of the inner wall of the movable squeezing sheet 42 and the fixed squeezing sheet 43 are the same, so that the movable squeezing sheet and the fixed squeezing sheet can be in the same processing state when they rotate and grind with the screw 3. It should be noted that the same circumference means that under ideal conditions, the two are located on the same circumference within an acceptable tolerance range. Figure 5 As shown, the upstream end defined here is the end that first contacts a specific point of the screw in the direction of screw rotation, and the end that contacts the characteristic point of the screw later is the downstream end.

[0050] It should be noted that if Figure 5As shown, the overlapping fit here means that the adjacent extrusion sheets have overlapping parts in the radial direction, that is, one of the extrusion sheets is located on the outside and the other adjacent extrusion sheet is located on the inside, so that the juice outlet channel 5 formed has a channel portion extending along the circumferential direction. The advantage of such a setting is that when the movable extrusion sheet is rotated by the extrusion force of the screw, the movable extrusion sheet moves outward and continues to fit with the adjacent fixed extrusion sheets, thereby ensuring that the juice outlet channel 5 located between the two extrusion sheets is always under the effect of pre-tightening pressure to ensure the preset gap size, and the gap between the existing bars will not become larger when squeezed, causing the residue to be discharged from the gap. Therefore, the solution of the present application can always keep the juice pure, so that the juice of the juicer tastes better. Even if the extrusion sheet is deformed after long-term use, the movable extrusion sheet can still keep in contact with the fixed extrusion sheet when subjected to the extrusion force of the screw, thereby ensuring the integrity of the juice outlet channel and controllable gap, and will not be deformed after long-term use like the existing grid bars, which will affect the normal juice outlet of the juicer. The juicer of the present application can maintain a consistent juice outlet taste throughout the product life cycle. When the juice barrel needs to be cleaned, the movable extrusion sheet can be moved to separate the movable extrusion sheet from the fixed extrusion sheet, such as Figure 6 As shown, at this time, the juice outlet channel between two adjacent squeezing sheets is completely opened, and the fruit residue remaining in the juice outlet channel can be cleaned very conveniently. In this way, by changing the juice outlet channel from being located between two circumferential bars to being located between two squeezing sheets in the radial direction, the contradiction between the existing bars is broken, that is, the juice outlet taste and juice outlet efficiency of the juice squeezing barrel can be always maintained, and the normal cleaning of the juice squeezing barrel is also convenient.

[0051] The bottom end of the fixed extrusion sheet 43 is also provided with a fixing groove 431, and the fixing ring 44 is provided with a boss 442. The boss 442 can be inserted into the fixing groove 431 to fix the fixing ring 44 and the fixed extrusion sheet 43, and clamp the movable extrusion sheet 42 between the cylinder body 41 and the fixing ring 44. The boss 442 is also provided with a fixing hole 4421, and the fixing hole 4421 passes through the fixing ring 44. The lower end surface of the fixing hole 4421 is also provided with an axial hole sink 4422. Preferably, the juice squeezing tube 4 is provided with a fixing member such as a screw at the fixing hole 4421, and the fixing ring 44 is fixed to the lower end of the extrusion column 43 by the screw, and the screw can be hidden in the axial hole sink 4422. Preferably, the inner side wall of the fixed ring 44 is also provided with a lower stop 443. When the movable extrusion sheet 42 is in contact with the fixed extrusion sheet 43, the lower end of the movable extrusion sheet 42 is in contact with the lower stop 443 to prevent the movable extrusion sheet 42 from excessively rotating outward. When the movable extrusion sheet 42 is pushed and extruded by the screw, especially when processing hard food, the movable extrusion sheet is easily deformed due to excessive extrusion force. Although the fixed extrusion sheet on the outside can withstand a certain extrusion force and maintain the gap of the juice outlet channel, the movable extrusion sheet and the fixed extrusion sheet will deform outward when continuously extruded, increasing the gap between the inner wall of the juice barrel and the screw, thereby reducing the grinding and crushing efficiency of the extrusion assembly. The lower stop is provided to block the outward rotation of the movable extrusion sheet and withstand the extrusion force of the movable extrusion sheet, so as to protect the movable extrusion sheet and the fixed extrusion sheet, effectively ensure that the movable extrusion sheet and the fixed extrusion sheet are always in a preset state, maintain the grinding and crushing efficiency of the extrusion assembly, and thereby ensure the normal processing of the juicer.

[0052] By arranging the extrusion plates in the filtering section, especially arranging movable extrusion plates and fixed extrusion plates, when the extrusion plates are squeezed by the screw, the extrusion plates overlap and fit together to form a juice outlet channel, thereby breaking the contradictions of the existing grid juice outlet scheme and changing the juice outlet method. Therefore, the juice outlet efficiency can be improved while ensuring the purity of the juice, and the cleaning of the juice outlet barrel can be facilitated, while meeting various needs of the juice outlet barrel.

[0053] It can be understood that the inner side walls of the movable extrusion sheet and the fixed extrusion sheet are not on the same circumference, so that a height difference is formed between adjacent movable extrusion sheets and fixed extrusion sheets, thereby forming an extrusion cutting position that cooperates with the screw to improve the crushing efficiency.

[0054] It can be understood that the juice squeezing barrel includes an extrusion section and a filtering section, which are divided according to the main functions to be realized. The function of the extrusion section is mainly to realize the extrusion processing of bulk materials. Therefore, it is not just a circular ring of the barrel as described in the embodiment, for example, it can also be set into a multi-section structure, and the above structure cannot be limited to a filtering section just because auxiliary filtering holes are set in the barrel; accordingly, the main function of the filtering section is to realize the separation of juice from pomace, and in the present application, the structural section of the extrusion sheet is mainly set to achieve the purpose of filtering.

[0055] It can be understood that the movable extrusion sheets and the fixed extrusion sheets are arranged in the same shape and are distributed along the circumference of the filter section. The extrusion sheets are arranged in a fan shape or have steps or steps so that adjacent extrusion sheets overlap and fit each other.

[0056] It can be understood that the juice squeezing cylinder can be directly plugged into the bottom wall of the juice collecting chamber through the squeezing sheet without providing the fixing ring.

[0057] It can be understood that the extrusion sheet has a protruding retaining rib axially arranged, and the retaining rib can fit with the inner wall of the juice squeezing tube. When the extrusion sheet is excessively deformed due to the push of the screw, the retaining rib can prevent the extrusion sheet from excessive deformation to protect the extrusion sheet.

[0058] It can be understood that the extrusion ribs may be provided with extrusion grooves on the inner wall that cooperate with the screw, so as to improve the cutting effect and guide the juice out through the extrusion grooves.

[0059] It can be understood that the extrusion rib protrudes toward the center of the juice squeezing barrel, and the axial extension direction of the extrusion rib is the same as the setting direction of the thread of the screw. Alternatively, the axial extension direction of the extrusion rib in the juice squeezing barrel is opposite to the setting direction of the thread of the screw, for example, the setting direction of the extrusion rib is opposite to the thread of the corresponding position. For different processed food ingredients, different extrusion effects can be achieved by setting extrusion ribs in different directions to cooperate with the screw. Since the extrusion sheet is movably arranged, it can be installed on the juice squeezing barrel by assembly. Therefore, the extrusion sheet can be made separately without being integrally formed with the juice squeezing barrel, which also facilitates the direction setting of the extrusion ribs set on the extrusion sheet. Therefore, the extrusion ribs can be set in different directions according to different processing requirements.

[0060] Embodiment 2.

[0061] As a second embodiment of the squeeze juicer described in the utility model, Figure 12-14 As shown, compared with the first embodiment, the extrusion sheets in this embodiment are all configured as movable extrusion sheets.

[0062] like Figure 12-14As shown, the juice squeezing barrel 4 includes an extrusion section and a filtering section, the extrusion section is provided with a barrel body 41, and the filtering section is provided with a plurality of movable extrusion sheets 42, the movable extrusion sheets 42 are arranged along the circumference of the juice squeezing barrel 4, and the movable extrusion sheets 42 can rotate along the axial direction. When the screw 3 is processed and rotated, the screw 3 pushes the food and further pushes the movable extrusion sheets 42 to rotate, and overlaps and fits with adjacent movable extrusion sheets 42 to form a juice outlet channel 5 between adjacent movable extrusion sheets 42.

[0063] The movable extrusion sheet 42 includes a body 421 and a fitting portion 422, the body 421 is provided with a through hole 4211, and the juice squeezer 4 also includes a rotating shaft 64 passing through the through hole 4211. Preferably, the rotating shaft 64 is set as a metal shaft to improve the strength of the rotating shaft 64, and the rotating shaft 64 passes through the through hole 4211 to be fixedly connected with the body 421. Preferably, the juice squeezer 4 also includes a fixing ring 44 arranged at the bottom end of the movable extrusion sheet 42. Preferably, the body 421 is provided with an upper shaft hole, and the fixing ring 44 is provided with a lower shaft hole. The two ends of the rotating shaft 64 are fixedly connected to the upper shaft hole and the lower shaft hole respectively, so as to clamp the movable extrusion sheet 42 between the body 421 and the fixing ring 44.

[0064] The inner side wall at the lower end of the body 421 is also provided with an upper limit platform 411, the inner side wall at the upper end of the fixing ring 44 is also provided with a lower limit platform 443, and the axial ends of the fitting portion 422 are provided with retaining ribs 4221, and when the movable extrusion sheet 42 is pushed outward by the screw to rotate, the retaining ribs 4221 can respectively fit with the upper limit platform 411 and the lower limit platform 443. Preferably, when the fitting portion 422 fits with the adjacent movable extrusion sheet 42, the retaining ribs 4221 do not contact with the upper limit platform 411 and the lower limit platform 443, and only when the movable extrusion sheet 42 is subjected to a large extrusion force, the retaining ribs 4221 fit with the upper limit platform 411 and the lower limit platform 443 to prevent the movable extrusion sheet 42 from being excessively extruded and deformed.

[0065] A plurality of movable extrusion sheets are provided, and the movable extrusion sheets are pushed by the screw when working (the screw and the movable extrusion sheets are not in direct contact with each other, the screw pushes the food, and further pushes the movable extrusion sheets through the food, that is, the screw provides a power source and finally pushes the movable extrusion sheets), and adjacent movable extrusion sheets overlap and adhere to each other to form a juice outlet channel at the adhesion, so that there is no need to set a gap between the juice outlet channels when the juice barrel is processed, and it is also avoided that the extrusion sheets need to constantly bear the extrusion force and then produce fatigue deformation when they are fixedly set, so that the juice outlet channel of the juice barrel can always be in a preset gap size, ensuring the purity of the juice and improving the processing taste of the original juice machine. At the same time, the movable extrusion sheet can be easily detached from the juice outlet position, so that the juice outlet channel of the juice barrel is fully opened for convenient and quick cleaning. Furthermore, the movable squeezing piece is movable and limited on the juice squeezing barrel body, and the user does not need to disassemble the movable squeezing piece. In this way, especially for forming a presentation channel position when maintaining the juice discharge condition, it is only necessary to install the screw in place to achieve efficient juice discharge under the push of the screw, which is more convenient and quick to use.

[0066] It can be understood that the juice squeezing cylinder may not be provided with the fixing ring, and the bottom end of the movable squeezing cylinder is directly fixed to the bottom wall of the juice collecting chamber.

[0067] It is understandable that the fixing ring can be configured as a metal part integrated with the rotating shaft. The fixing ring is configured as an annular shape, the rotating shaft is fixed on the annular fixing ring, for example, fixed as an integral whole by welding, and the movable extrusion sheet is fixedly connected to the cylinder through the fixing ring and the rotating shaft.

[0068] It can be understood that the body and the fixing ring are respectively provided with protrusions, and the protrusions are inserted into the through holes of the movable extrusion sheet to position the movable extrusion sheet, and the movable extrusion sheet rotates around the protrusions.

[0069] In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] The above is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the present invention are covered by the scope of the claims of the present invention and will not be listed one by one here.

Claims

1. An extrusion type juicer, comprising a main unit with a motor, a juice collecting chamber provided on the main unit, a detachable extrusion assembly provided in the juice collecting chamber, and a feeding cover covering the juice collecting chamber, wherein the extrusion assembly comprises a screw and a juice squeezing cylinder sleeved outside the screw, and characterized in that: The juice squeezing barrel includes an extrusion section and a filtering section. The filtering section is provided with a plurality of extrusion sheets arranged along the axial direction. The extrusion sheets are arranged at the lower end of the extrusion section and are arranged along the circumference of the juice squeezing barrel. At least part of the extrusion sheets can rotate along the axial direction. When the screw rotates, the extrusion sheets are pushed to rotate so as to overlap with each other and form a juice outlet channel between adjacent extrusion sheets. The juice outlet channel connects the inside and outside of the juice squeezing barrel and includes a portion extending along the circumference of the juice squeezing barrel.

2. The squeeze juicer according to claim 1, characterized in that: The extrusion sheet comprises a body and a fitting portion, wherein the axis of the extrusion sheet passes through the body, the fitting portion is formed by the body extending radially outward, and when being extruded, the fitting portion overlaps with an adjacent extrusion sheet to form the juice outlet channel.

3. The squeeze juicer according to claim 2, characterized in that: The extrusion sheet further comprises an extension portion, wherein the extension portion and the fitting portion are respectively located on both sides of the rotation axis of the body, and the extension portion overlaps with the fitting portion of the adjacent extrusion sheet to form the juice outlet channel.

4. The squeeze juicer according to claim 1, characterized in that: The juice squeezing cylinder further comprises a fixing ring located at the bottom end of the filtering section, and the bottom end of the squeezing sheet is rotatably connected to the fixing ring.

5. The squeeze juice machine according to claim 1, characterized in that: The extrusion sheets are arranged in an even number, and two adjacent extrusion sheets include a fixed extrusion sheet and a movable extrusion sheet. The movable extrusion sheet overlaps with the adjacent fixed extrusion sheet under the push of the screw to form the juice outlet channel.

6. The squeeze juice machine according to claim 5, characterized in that: The fixed extrusion sheet is formed by extending in the circumferential direction, and the inner side wall of the upstream end of the fixed extrusion sheet is provided with a placement portion, the movable extrusion sheet includes a main body and a fitting portion, the fitting portion is fitted with the placement portion to form the juice outlet channel, and the inner side wall of the fixed extrusion sheet and the movable extrusion sheet are located on the same circumference.

7. The squeeze juicer according to claim 6, characterized in that: The outer side wall of the downstream end of the fixed extrusion sheet is provided with a notch portion, and the movable extrusion sheet further comprises an extension portion, the extension portion and the fitting portion are respectively located on both sides of the axis of the body, and the extension portion and the notch portion are fitted to form the juice outlet channel.

8. The squeeze juice machine according to claim 1, characterized in that: The juice squeezing cylinder is provided with a limiting platform, and the limiting platform blocks the squeezing sheet when the squeezing sheet rotates.

9. The squeeze juice machine according to claim 1, characterized in that: The extrusion sheet is provided with a juice outlet groove, and the juice outlet groove is arranged at the joint of adjacent extrusion sheets, and the juice outlet groove and the gap between adjacent extrusion sheets together constitute the juice outlet channel.

10. The squeeze juicer according to claim 1, characterized in that: The inner side wall of the squeezing sheet is provided with squeezing ribs, the squeezing ribs protrude toward the center of the juice squeezing cylinder, and the squeezing ribs extend along the axial direction of the juice squeezing cylinder; Or the inner side wall of the extrusion sheet is provided with an extrusion rib, the extrusion rib protrudes toward the center of the juice squeezing cylinder, and the extension direction of the extrusion rib is the same as the thread direction of the screw; Alternatively, an inner side wall of the extrusion sheet is provided with an extrusion rib, the extrusion rib protrudes toward the center of the juice squeezing cylinder, and an extending direction of the extrusion rib is opposite to a thread direction of the screw rod.

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