A driving screw on a juicer and a juice extraction component based on the screw

Abstract

The present invention discloses a driving screw for a juicer and a juice extraction component based on the screw; it belongs to the technical field of screws; its technical highlights include a base body, a cutting edge arranged on the outer wall of the base body and a slag pushing block arranged at the bottom of the base body, a connecting structure adapted to an external driving wheel is provided at the axis center of the top of the base body; a supporting and positioning structure matched with an external squeezing cup is provided at the bottom of the base body, when the external driving wheel cooperates with the connecting structure to drive the base body to rotate, the base body rotates along the axis center in the external squeezing cup through the supporting and positioning structure; the present invention aims to provide a driving screw for a juicer with a reasonable structure, easy use and good effect and a juice extraction component based on the screw; used for a juicer.

Description

Technical Field

[0001] The present invention relates to a screw for a juicer, and more particularly to a driving screw for a juicer. The present invention also relates to a juice extraction assembly based on the screw. Background Art

[0002] A juicer, developed from a conventional juicer, primarily converts fruit into juice for a more palatable and convenient drinking experience. Compared to a juicer, a juicer produces juice through a low-speed screw extrusion process. The lower the speed, the better. Juicers typically run at around 75 revolutions per minute, slowly squeezing the juice out like a towel, preserving the fruit's cellular structure and nutrients without damaging it. Furthermore, this low-speed process doesn't generate high heat, preventing oxidation.

[0003] Existing juicers have a wide variety of structures. Depending on the drive method and product structure, the core screw also has a variety of supporting structures, resulting in different extrusion and propulsion effects. Currently, there are no juicers and their corresponding screws with top-drive methods on the market. Using a top-drive method requires solving problems such as bottom support and positioning of the screw, otherwise it can easily affect the extrusion effect and seriously shorten the product life. Summary of the Invention

[0004] The first object of the present invention is to address the deficiencies of the above-mentioned prior art and provide a driving screw for a juicer that has a reasonable structure, is easy to use and has good effects.

[0005] The latter object of the present invention is to provide a juice extraction assembly based on the above-mentioned screw.

[0006] The previous technical solution of the present invention is implemented as follows: a driving screw on a juicer includes a base body, a cutting edge arranged on the outer wall of the base body and a slag pushing block arranged at the bottom of the base body, and a connecting structure adapted to the external driving wheel is provided at the axis center of the top of the base body; a supporting and positioning structure matched with the external extrusion cup is provided at the bottom of the base body, and when the external driving wheel cooperates with the connecting structure to drive the base body to rotate, the base body rotates along the axis center in the external extrusion cup through the supporting and positioning structure.

[0007] In the above-mentioned driving screw on the juicer, the connection structure is composed of a connecting groove arranged on the top of the base body and a connecting spline arranged in the connecting groove; the external driving wheel cooperates with the connecting spline to drive the base body to rotate.

[0008] In the above-mentioned driving screw on the juicer, the connection structure is a spline groove provided on the top of the seat body; the external driving wheel cooperates with the spline groove to drive the seat body to rotate.

[0009] In the above-mentioned driving screw of the juicer, the bottom end surface of the base body is axially provided with a first mounting groove; the supporting positioning structure is a first annular notch circumferentially provided at the opening of the first mounting groove, and the first annular notch is coaxial with the connecting structure.

[0010] In the above-mentioned driving screw on the juicer, a second mounting groove is axially arranged on the bottom end face of the base body; the supporting positioning structure is composed of a support column arranged at the bottom of the second mounting groove, a positioning hole arranged axially along the support column, and an annular positioning groove arranged on the bottom end face of the base body on the side of the second mounting groove; the connecting structure, the positioning hole and the annular positioning groove are coaxial.

[0011] In the above-mentioned driving screw rod of the juicer, an annular mounting notch is provided on the supporting column corresponding to the lower end of the positioning hole.

[0012] In the above-mentioned driving screw of the juicer, the supporting and positioning structure is a silicone support ring provided on the bottom end surface of the base body. In the idling or stationary state, the base body contacts the inner bottom surface of the external squeezing cup through the silicone support ring.

[0013] In the above-mentioned driving screw on the juicer, the side wall of the silicone support ring is evenly spaced along the circumferential direction with a number of scraping blades, and support ribs are integrally formed on the end face of each scraping blade opposite to the inner bottom surface of the external squeezing cup. In the idling or stationary state, the seat body contacts the inner bottom surface of the external squeezing cup through the support ribs on the silicone support ring.

[0014] In the above-mentioned driving screw on the juicer, the bottom end face of the base body is provided with a plurality of coaxial and spaced annular positioning parts along the circumferential direction, and the silicone support ring is detachably connected to the bottom end face of the base body through the annular positioning parts; the annular positioning parts are circular rings or protrusions spaced in a ring shape. When the annular positioning parts located on the outer ring are circular rings, the circular ring is provided with limiting notches adapted to each scraper blade.

[0015] In the above-mentioned driving screw on the juicer, a second mounting notch is axially provided on the bottom end face of the base body, the inner annular portion of the silicone support ring is located in the second mounting notch, and a plurality of annular convex rings are circumferentially provided on the inner wall of the inner annular portion, and each annular convex ring is axially spaced apart from each other along the inner annular portion.

[0016] The present invention adopts the above structure, and the screw is driven by the connection structure at the top of the base body and the external drive wheel, which has the advantage of a stable structure. At the same time, by providing a support and positioning structure at the bottom of the base body and cooperating with the external extrusion cup, the base body can be driven from the top and supported from the bottom.

[0017] The latter technical solution of the present invention is achieved as follows: a juice extraction assembly based on the above-mentioned top-driven spiral screw includes a first squeezing cup, a seat body that cooperates with each other is provided in the first squeezing cup, and a first isolation positioning ring that cooperates with the first annular notch is provided at the bottom of the first squeezing cup; the seat body is driven to rotate along the first isolation positioning ring through an external motor and a connecting structure; in a stationary or idling state, the bottom of the seat body contacts the bottom of the first squeezing cup.

[0018] In the above-mentioned squeeze filter assembly, a support structure is provided between the bottom plane of the seat body and the inner bottom plane of the first squeeze cup; in a stationary or idling state, the seat body is separated from the first squeeze cup by the support structure.

[0019] In the above-mentioned extrusion filter assembly, the support structure is an isolation support ring clamped between the first isolation positioning ring and the first annular gap; in a stationary or idling state, the bottom of the seat body contacts the isolation support ring and is separated from the bottom of the first extrusion cup.

[0020] In the above-mentioned extrusion filter assembly, the isolation support ring is detachably sleeved on the outer wall of the first isolation positioning ring, and at least one annular or spherical support protrusion is circumferentially provided on the upward end surface of the isolation support ring.

[0021] A juice extraction assembly based on the above-mentioned upper drive screw includes a second squeezing cup, a seat body that cooperates with each other is provided in the second squeezing cup, and a second isolation positioning ring that cooperates with the annular positioning groove is provided at the bottom of the second squeezing cup; a support seat is provided in the second squeezing cup below the support column, and a wear-resistant part is sandwiched between the support seat and the support column. In the juicing state, the support column is separated from the wear-resistant part and the seat body rotates along the second isolation positioning ring; in the stationary or idling state, the support column is in contact with the wear-resistant part and the bottom of the seat body does not contact the bottom of the second squeeze cup.

[0022] A juice extraction assembly based on the above-mentioned upper driving screw includes a third squeezing cup, characterized in that a seat body that cooperates with each other is provided in the third squeezing cup, and a third isolation positioning ring that cooperates with the annular positioning groove is provided at the bottom of the third squeezing cup; a supporting sleeve is provided in the third squeezing cup below the support column, and a supporting shaft is axially provided on the supporting sleeve, and a wear-resistant sleeve is provided on the movable sleeve of the support shaft, wherein the wear-resistant sleeve is provided in the annular mounting notch, and a wear-resistant ring is clamped on the outer periphery of the support shaft between the supporting sleeve and the support column. In the juicing state, the support column is separated from the wear-resistant ring and the seat body rotates along the third isolation positioning ring; in the stationary or idling state, the support column is in contact with the wear-resistant ring and the bottom of the seat body does not contact the bottom of the third squeeze cup.

[0023] A juice extraction assembly based on the above-mentioned upper drive screw includes a fourth squeezing cup, characterized in that a seat body that cooperates with each other is provided in the fourth squeezing cup, and a fourth isolation positioning ring that cooperates with a silicone support ring is provided at the bottom of the fourth squeezing cup, and the inner diameter of the silicone support ring is adapted to the outer diameter of the fourth isolation positioning ring.

[0024] The present invention employs the above-described structure, providing an isolation and positioning ring on the bottom of the squeeze cup that cooperates with the screw base, thereby maintaining the screw's stability during rotation and preventing juice residue from entering the screw. Preferably, to prevent wear between the screw and the squeeze cup during idling, a support structure is provided between the screw and the squeeze cup, separating the base from the squeeze cup during static or idling conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described in detail below with reference to the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of screw embodiment 1 of the present invention.

[0027] Figure 2 Schematic diagram of the internal structure of screw embodiment 1 of the present invention.

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of screw embodiment 1 of the present invention from another perspective.

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of screw embodiment 2 of the present invention.

[0030] Figure 5 Schematic diagram of the internal structure of screw embodiment 2 of the present invention.

[0031] Figure 6 It is a structural schematic diagram of screw embodiment 3 of the present invention.

[0032] Figure 7 It is a structural schematic diagram of screw embodiment 4 of the present invention.

[0033] Figure 8 It is a structural schematic diagram of screw embodiment 5 of the present invention.

[0034] Figure 9 yes Figure 8 A partial enlarged schematic diagram of point C in the middle.

[0035] Figure 10 It is a schematic diagram of the top view of the screw embodiment 5 of the present invention.

[0036] Figure 11 yes Figure 10 Schematic diagram of the cross-sectional structure at DD in the middle.

[0037] Figure 12 yes Figure 11 A partial enlarged schematic diagram of point E in the middle.

[0038] Figure 13 It is a schematic structural diagram of the silicone support ring in screw embodiment 5 of the present invention.

[0039] Figure 14 It is a structural schematic diagram of Example 6 of the extrusion filter assembly of the present invention.

[0040] Figure 15 yes Figure 14 Schematic diagram of the decomposition structure.

[0041] Figure 16 It is a structural schematic diagram of Example 7 of the extrusion filter assembly of the present invention.

[0042] Figure 17 yes Figure 16 A local enlarged schematic diagram of point A in the middle.

[0043] Figure 18 It is a structural schematic diagram of Example 8 of the extrusion filter assembly of the present invention.

[0044] Figure 19 yes Figure 18 A partial enlarged schematic diagram of point B in the middle.

[0045] Figure 20 It is a schematic diagram of the decomposition structure of Example 8 of the extrusion filter assembly of the present invention.

[0046] Figure 21 It is a structural schematic diagram of Example 9 of the extrusion filter assembly of the present invention.

[0047] Figure 22 It is a schematic diagram of the exploded structure of Example 9 of the extrusion filter assembly of the present invention.

[0048] Figure 23 It is a structural schematic diagram of embodiment 10 of the extrusion filter assembly of the present invention.

[0049] Figure 24 yes Figure 23 A partial enlarged schematic diagram of point F in the middle.

[0050] Figure 25 It is a schematic diagram of the exploded structure of embodiment 10 of the extrusion filter assembly of the present invention.

[0051] In the figure: 1, seat; 1a, cutting edge; 1b, slag pusher; 1c, first mounting groove; 1d, second mounting groove; 1e, annular positioning portion; 1f, limiting notch; 1g, second mounting notch; 2, connecting structure; 2a, connecting groove; 2b, connecting spline; 2c, spline groove; 3, first annular notch; 4, support column; 4a, positioning hole; 4b, annular mounting notch; 5, annular positioning groove; 6, first extrusion cup; 6a, first isolation fixed Positioning ring; 7. Isolation support ring; 7a. Support protrusion; 8. Second extrusion cup; 8a. Second isolation positioning ring; 8b. Support seat; 8c. Wear-resistant part; 9. Third extrusion cup; 9a. Third isolation positioning ring; 9b. Support sleeve; 9c. Support shaft; 9d. Wear-resistant sleeve; 9e. Wear-resistant ring; 10. Silicone support ring; 10a. Slag scraper; 10b. Support rib; 11. Fourth extrusion cup; 11a. Fourth isolation positioning ring; 12. Slag pusher block. DETAILED DESCRIPTION Example 1

[0052] See Figures 1 to 3 As shown, the driving screw of a juicer of the present invention comprises a base 1, a cutting edge 1a arranged on the outer wall of the base 1 and a slag pushing block 1b arranged at the bottom of the base 1. The shape of the slag pushing block can be specifically designed according to needs to facilitate slag pushing, for example, Figure 3 The slag pushing block shown is integrally formed with the cutting edge, with its bottom surface flush with the bottom surface of the seat body, and a hook-shaped scraping surface formed on the side surface, which can effectively drive the juice slag to rotate and then discharge it.

[0053] A connecting structure 2 adapted to the external driving wheel is provided at the top axis of the base body 1; a supporting positioning structure adapted to the external squeezing cup is provided at the bottom of the base body 1. When the external driving wheel cooperates with the connecting structure 2 to drive the base body 1 to rotate, the base body 1 rotates along the axis in the external squeezing cup through the supporting positioning structure.

[0054] In this embodiment, the connection structure 2 is composed of a connection groove 2a provided on the top of the seat body 1 and a connection spline 2b provided in the connection groove 2a; the external driving wheel cooperates with the connection spline 2b to drive the seat body 1 to rotate.

[0055] At the same time, a first mounting groove 1c is axially provided on the bottom end surface of the seat body 1; the supporting positioning structure is a first annular notch 3 circumferentially provided at the opening of the first mounting groove 1c, and the first annular notch 3 is coaxial with the connecting structure 2.

[0056] The bottom of the seat 1 is formed into a U-shaped cavity, significantly reducing production costs. The seat 1 is rotationally driven by connecting grooves and splines on the seat. The first annular notch cooperates with the external convex ring to limit the seat and prevent external juice residue from entering the bottom of the seat, facilitating cleaning. Example 2

[0057] See Figure 4 and Figure 5 As shown, the present invention is a juicer upper drive screw, the structure of which is basically the same as that of Example 1, except that the connecting structure 2 is a spline groove 2c provided on the top of the base 1; the external drive wheel cooperates with the spline groove 2c to drive the base 1 to rotate. The use effect is the same as that of Example 1. Example 3

[0058] See Figure 6 As shown, the present invention discloses a drive screw for a juicer. Its structure is essentially the same as that of Example 1, except that a second mounting groove 1d is axially provided on the bottom end surface of the base body 1. The support and positioning structure comprises a support column 4 disposed at the bottom of the second mounting groove 1d, a positioning hole 4a axially provided along the support column 4, and an annular positioning groove 5 disposed on the bottom end surface of the base body 1 to the side of the second mounting groove 1d. The connecting structure 2, positioning hole 4a, and annular positioning groove 5 are coaxial. The support column cooperates with the external support to provide rotational support for the base body. The annular positioning groove primarily serves to isolate juice residue and assist in positioning, preventing the base body from swinging during rotation. Example 4

[0059] See Figure 7 As shown, the structure of the upper drive screw of the juicer of the present invention is basically the same as that of Example 1, except that an annular mounting notch 4b is provided on the support column 4 corresponding to the lower end of the positioning hole 4a. A wear-resistant ring is installed in the annular mounting notch to prevent damage caused by direct friction between the support shaft and the inner wall of the support column, thereby improving the rotational stability of the base and extending the service life of the base. Example 5

[0060] See Figures 8 to 13 As shown, a driving screw on a juicer of the present invention has a structure basically the same as that of Example 1, except that the supporting and positioning structure is a silicone support ring 10 arranged on the bottom end face of the base body 1. In the idling or stationary state, the base body 1 contacts the inner bottom surface of the external squeezing cup through the silicone support ring 10.

[0061] Preferably, the sidewall of the silicone support ring 10 is evenly spaced along the circumference with a plurality of scraping blades 10a. Support ribs 10b are integrally formed on the end surface of each scraping blade 10a opposite the inner bottom surface of the external extrusion cup. When idling or stationary, the base body 1 contacts the inner bottom surface of the external extrusion cup via the support ribs 10b on the silicone support ring 10. The scraping blades, in conjunction with the slag pusher 12 at the bottom of the base body, provide a better scraping effect.

[0062] Preferably, in order to facilitate the fixation of the silicone support ring, a plurality of coaxial and spaced annular positioning portions 1e are provided along the circumferential direction on the bottom end face of the base body 1. The silicone support ring 10 is detachably connected to the bottom end face of the base body 1 through the annular positioning portions 1e. The annular positioning portions 1e are circular rings or protrusions spaced in a ring shape. When the annular positioning portions 1e located on the outer ring are circular rings, the circular ring is provided with limiting notches 1f adapted to the scraping blades 10a. The function of the limiting notches is to allow the scraping blades to extend to the outside of the bottom of the base body for scraping, while preventing the silicone support ring from rotating on the bottom of the base body. When the annular positioning portion is a non-connected ring and the bottom structure of the silicone support ring is embedded in the annular positioning portion, the above situation does not exist. If the bottom of the silicone support ring is still an annular structure, an anti-rotation structure is still required.

[0063] Of course, the silicone support ring can also be connected to the bottom of the seat in other detachable ways, such as screw connection, snap connection or plug-in connection, etc. These are equivalent alternative solutions that can be thought of by those skilled in the art based on the above solutions disclosed in the present invention.

[0064] Further preferably, the bottom end surface of the base body 1 is provided with a second mounting notch 1g in the axial direction, the inner annular portion of the silicone support ring 10 is located in the second mounting notch 1g, and a plurality of annular protrusions 10c are provided on the inner wall of the inner annular portion in the circumferential direction, and the annular protrusions 10c are distributed axially at intervals along the inner annular portion. In this structure, the purpose of providing the second mounting notch is mainly to facilitate the positioning of the silicone support ring and to facilitate its cooperation with the isolation positioning ring at the bottom of the squeeze cup. The preferred method is that the external isolation support ring is also located in the second mounting notch. Of course, as an equivalent alternative or secondary option,

[0065] In one approach, the second mounting notch can be eliminated, while the inner annular portion of the silicone support ring remains within the first mounting groove at the bottom of the base body, thus enabling the inner annular portion of the silicone support ring to cooperate with the external isolation and positioning ring. In another approach, the second mounting notch is retained, but the inner annular portion of the silicone support ring is not located within the second mounting notch. The second mounting notch only cooperates with the external isolation and positioning ring to achieve positioning, centering, and isolation of juice residue, while the silicone support ring supports the base body and cooperates with the inner bottom surface of the squeeze cup to achieve preliminary isolation of juice residue.

[0066] It should be emphasized that the above-described embodiment of the present invention is described as a preferred method in which the bottom of the seat body is provided with an axial mounting groove. The purpose of the mounting groove is to save material. If production costs are not a consideration, the above-mentioned technical effects of the present invention can be achieved by designing the seat body as a solid structure without the mounting groove. This is an equivalent alternative solution that can be easily considered by those skilled in the art. Example 6

[0067] See Figure 14 As shown, a juice extraction assembly based on the top-driven spiral screw described in Example 2 of the present invention includes a first squeezing cup 6, in which a seat body 1 that cooperates with each other is provided, and a first isolation positioning ring 6a that cooperates with the first annular notch 3 is provided at the bottom of the first squeezing cup 6; the seat body 1 is driven to rotate along the first isolation positioning ring 6a by an external motor and a connecting structure; in a stationary or idling state, the bottom of the seat body 1 contacts the bottom of the first squeezing cup 6.

[0068] The innovation in this embodiment is that the first isolating positioning ring cooperates with the first annular notch to limit the rotation of the propeller, and the propeller is directly supported by the bottom of the first extrusion cup.

[0069] At the same time, according to the inner contour shape of the spline groove on the seat body, a driving wheel with the same outer contour shape as the spline groove is provided to cooperate with it.

[0070] During operation, the motor and drive wheel, coupled via a spline, drive the base to rotate. The slag pusher at the base's lower end rotates the pomace, ultimately moving it to the slag discharge hole at the bottom of the first extrusion cup, where it pushes through the sealant sheet and ultimately falls into the slag receiving cup. Parameters such as the extrusion gap and cutting edge shape are not technical points protected by this application and will not be discussed here. These components can simply adopt existing structures. Example 7

[0071] See Figures 15 to 17 As shown, the structure of the juice extraction assembly based on the top-driven spiral screw of Example 1 of the present invention differs from that of Example 5 in that the splines on the propeller are different, and therefore the driving wheel is also different. However, the use effects are exactly the same.

[0072] At the same time, a supporting structure is provided between the bottom plane of the seat body 1 and the inner bottom plane of the first squeeze cup 6; in a stationary or idling state, the seat body 1 is separated from the first squeeze cup 6 by the supporting structure, which can avoid wear of the bottom of the seat body and the corresponding inner surface of the first squeeze cup.

[0073] Preferably, in this embodiment, the support structure is an isolation support ring 7 sandwiched between the first isolation positioning ring 6a and the first annular notch 3. When stationary or idling, the bottom of the base body 1 contacts the isolation support ring 7 and is separated from the inner bottom of the first squeeze cup 6. Preferably, the gap between the base body 1 and the first squeeze cup 6 in the stationary state is 0.2-1 mm, as long as the two are kept separate and do not wear.

[0074] Further preferably, the isolation support ring 7 is removably mounted on the outer wall of the first isolation positioning ring 6a. At least one annular or spherical support protrusion 7a is circumferentially provided on the upward-facing end surface of the isolation support ring 7. In this embodiment, the isolation support ring is generally Z-shaped, with annular support protrusions provided on its two horizontal surfaces. These two support protrusions provide more stable support for the seat, preventing it from moving downward and contacting the first squeeze cup. Accordingly, a clearance groove is provided on the first squeeze cup outside the first isolation positioning ring. This allows the lower portion of the isolation support ring to sink into the clearance groove, leaving only the support protrusion located above the inner bottom surface of the first squeeze cup, thereby supporting the seat.

[0075] The provision of the isolation support ring not only satisfies the support and positioning of the seat body 1 , but also effectively avoids wear between the seat body and the first squeeze cup.

[0076] Of course, the support structure described in this embodiment is only a preferred method. As long as it is located between the bottom plane of the seat body 1 and the inner bottom plane of the first squeeze cup 6, and can separate the seat body from the first squeeze cup in a stationary or idling state, and has wear-resistant properties, it should be understood to be within the scope of protection of the present invention. For example, an isolation support ring can also be set at the bottom of the seat body. Alternatively, a combination of two matching wear-resistant rings or a combination of a wear-resistant ring and a wear-resistant protrusion can be set on the bottom of the seat body outside the first isolation positioning ring and the inner bottom plane of the first squeeze cup, etc. These are all replacement methods that can be easily thought of by those skilled in the art based on the technical solution disclosed in the present invention. Example 8

[0077] See Figures 18 to 20 As shown, a juice extraction assembly based on the upper-driven spiral screw described in Example 3 of the present invention includes a second squeezing cup 8, a seat body 1 that cooperates with each other is provided in the second squeezing cup 8, and a second isolation positioning ring 8a that cooperates with the annular positioning groove 5 is provided at the bottom of the second squeezing cup 8; a support seat 8b is provided in the second squeezing cup 8 below the support column 4, and a wear-resistant part 8c is sandwiched between the support seat 8b and the support column 4. In the juicing state, the support column 4 is separated from the wear-resistant part 8c and the seat body 1 rotates along the second isolation positioning ring 8a; in the stationary or idling state, the support column 4 is in contact with the wear-resistant part 8c and the bottom of the seat body 1 is not in contact with the bottom of the second squeezing cup 8.

[0078] With the above structure, the wear-resistant part supports the base at the center of the base, so that the base and the second squeeze cup are separated and contactless. At the same time, the vegetable positioning groove cooperates with the second isolation positioning ring to achieve the positioning of the base and prevent juice residue from entering the bottom of the base, making it easier to clean. Example 9

[0079] See Figure 21 and Figure 22As shown, a juice extraction assembly based on the upper-driven spiral screw described in Example 4 of the present invention includes a third squeezing cup 9, wherein the third squeezing cup 9 is provided with a seat body 1 that cooperates with each other, and a third isolation positioning ring 9a that cooperates with the annular positioning groove 5 is provided at the bottom of the third squeezing cup 9; a support sleeve 9b is provided in the third squeezing cup 9 below the support column 4, and a support shaft 9c is axially provided on the support sleeve 9b, and a wear-resistant sleeve 9d is movably provided on the support shaft 9c; the wear-resistant sleeve 9d is provided in the annular mounting notch 4b, and a wear-resistant ring 9e is clamped on the outer periphery of the support shaft 9c between the support sleeve 9b and the support column 4. In the juicing state, the support column 4 is separated from the wear-resistant ring 9e and the seat body 1 rotates along the third isolation positioning ring 9a; in the stationary or idling state, the support column 4 is in contact with the wear-resistant ring 9e and the bottom of the seat body 1 is not in contact with the bottom of the third squeezing cup 9.

[0080] Compared with embodiment 7, this structure adds a support shaft, which can make the seat body rotate more stably. The function of the wear-resistant sleeve is to prevent the support shaft and the support column from wearing. Example 10

[0081] See Figures 23 to 25 As shown, the present invention employs a juice extraction assembly based on the aforementioned top-driven spiral screw, comprising a fourth squeeze cup 11, within which a base 1 is positioned for mutual engagement. A fourth isolation and positioning ring 11a is disposed on the bottom of the fourth squeeze cup 11, engaging with a silicone support ring 10. The inner diameter of the silicone support ring 10 matches the outer diameter of the fourth isolation and positioning ring 11a. The assembly provides the same benefits as the aforementioned embodiments, differing only in that the silicone support ring, which serves as a support, is mounted on the bottom of the base, making disassembly and cleaning easier.

[0082] In the present invention, there is a gap of 0.1-1.5 mm between the isolation positioning ring and the base body, or between the isolation positioning ring and the base body, in order to facilitate assembly and avoid damage caused by frequent friction.

[0083] At the same time, the squeeze cup structure of the present invention can adopt all existing structures, such as a combination of a filter frame and a filter, a combination of inner and outer components forming long strip filter holes, an integrally formed filter, etc. As long as it can cooperate with the propeller to achieve juice extraction, the structure is not the technical point to be protected by this application.

[0084] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the technical field can, without departing from the scope of the technical features of the present invention, make partial changes or modifications to the technical contents disclosed in the present invention and make equivalent embodiments without departing from the technical features of the present invention. Such modifications still fall within the scope of the technical features of the present invention.

Claims

1. A driving screw on a juicer, comprising a base (1), a cutting edge (1a) arranged on the outer wall of the base (1), and a slag pushing block (1b) arranged at the bottom of the base (1), characterized in that: A connecting structure (2) adapted to the external drive wheel is provided at the top axis of the seat body (1); a supporting positioning structure adapted to the external extrusion cup is provided at the bottom of the seat body (1); when the external drive wheel and the connecting structure (2) cooperate to drive the seat body (1) to rotate, the seat body (1) rotates along the axis in the external extrusion cup via the supporting positioning structure; The supporting and positioning structure is a silicone support ring (10) provided on the bottom end surface of the seat body (1); in an idling or stationary state, the seat body (1) contacts the inner bottom surface of the external extrusion cup through the silicone support ring (10); The side wall of the silicone support ring (10) is evenly spaced along the circumference with a plurality of scraping blades (10a), and a supporting rib (10b) is integrally formed on the end surface of each scraping blade (10a) opposite to the inner bottom surface of the external extrusion cup. In an idling or stationary state, the seat body (1) contacts the inner bottom surface of the external extrusion cup through the supporting ribs (10b) on the silicone support ring (10); The connection structure (2) is composed of a connection groove (2a) arranged at the top of the seat body (1) and a connection spline (2b) arranged in the connection groove (2a) or a spline groove (2c) arranged at the top of the seat body (1); the external drive wheel cooperates with the connection spline (2b) or the spline groove (2c) to drive the seat body (1) to rotate.

2. The driving screw of the juicer according to claim 1, characterized in that: The bottom end surface of the seat body (1) is provided with a plurality of coaxial and spaced annular positioning portions (1e) along the circumferential direction, and the silicone support ring (10) is detachably connected to the bottom end surface of the seat body (1) via the annular positioning portions (1e); the annular positioning portions (1e) are circular rings or convex blocks spaced in annular shapes, and when the annular positioning portions (1e) located on the outer ring are circular rings, the circular rings are provided with limiting notches (1f) adapted to the respective scraper blades (10a).

3. The driving screw rod of the juicer according to claim 2, characterized in that: A second mounting notch (1g) is provided on the bottom end surface of the seat body (1) along the axial direction, the inner annular portion of the silicone support ring (10) is located in the second mounting notch (1g), and a plurality of annular convex rings (10c) are provided on the inner wall of the inner annular portion along the circumferential direction, with the annular convex rings (10c) being distributed at intervals along the axial direction of the inner annular portion.

4. A juice extraction assembly based on the upper drive screw according to any one of claims 1 to 3, comprising a fourth squeezing cup (11), characterized in that: The fourth squeeze cup (11) is provided with a seat body (1) that cooperates with each other, and a fourth isolation positioning ring (11a) that cooperates with the silicone support ring (10) is provided at the bottom of the fourth squeeze cup (11), and the inner diameter of the silicone support ring (10) is adapted to the outer diameter of the fourth isolation positioning ring (11a).

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