Juicer and squeezing screw thereof

Abstract

The utility model relates to a juicer and a squeezing screw thereof, the juicer comprises a juice collecting cup, and the juice collecting cup is provided with a residue discharge port and a juice outlet; the filtering cover is embedded in the lower part of the inner cavity of the juice collecting cup, and an annular step surface is arranged on the top surface of the filtering cover; the lower portion of the squeezing screw rod is embedded in the filter cover, an extrusion seam is formed between the squeezing screw rod and the filter cover, the middle portion of the squeezing screw rod extends outwards to form a supporting ring which is placed on the annular step face, and a plurality of discharging openings which are evenly distributed in the circumferential direction are formed in the supporting ring; a hopper is integrally formed at the bottom of the feeding cup, the hopper is embedded in the upper portion of an inner cavity of the juice collecting cup and detachably connected with the juice collecting cup, the bottom face of the hopper abuts against the top face of the filtering cover in a pressing mode, the supporting ring is limited between the bottom face of the hopper and the annular step face, and the upper portion of the squeezing screw is arranged in the hopper. According to the normal juice machine, the screw rod is pressed and fixed at the middle position, so that a positioning point at the top end of the squeezing screw rod can be omitted while the squeezing screw rod can keep rotating along the axis.

Description

Technical Field

[0001] The utility model relates to the field of juicers, in particular to a juicer and a pressing screw thereof. Background Art

[0002] At present, the product structure of the juicer is as shown in the Chinese patent document, application number: CN202322652763.1, which is a juicing component of an ultra-large-caliber juicer. Its main structure includes a fruit cutting cup, a fruit cutting knife, a juice cup, a juicing screw and a juicing net cylinder. The fruit cutting knife is arranged in the fruit cutting cup, the juice cup is arranged at the bottom of the fruit cutting cup, the juicing net cylinder is arranged in the juicing cup, the juicing screw is arranged in the juicing net cylinder, and the top of the juicing screw drives the fruit cutting knife to rotate. The fruit cutting knife includes a knife seat, a chopping blade and a fruit sweeping blade arranged on the knife seat, and the top of the juicing screw is connected to the knife seat.

[0003] However, in the prior art, after the juicing screw is placed on the juicing net cylinder, the bottom of the fruit cutting cup still needs to be crimped and fixed to the top surface of the juicing screw, and a transmission sleeve needs to be provided at the bottom of the fruit cutting cup. The transmission sleeve serves as a positioning point and cooperates with the top of the transmission shaft in the center of the juicing screw to ensure that the juicing screw maintains axial rotation. However, this structure makes the fruit cutting cup structure too complicated, and the supporting structure of the transmission sleeve will affect the discharge efficiency of the fruit cutting cup, and is not conducive to rinsing and cleaning after disassembly. Therefore, the applicant provides a new solution that can solve the above-mentioned prior art problems by improving and perfecting the prior art for consumers to choose and use. Summary of the invention

[0004] The utility model aims to provide a juicer and a squeezing screw with simple and reasonable structure, good squeezing effect and stable and reliable operation.

[0005] A squeezing screw rod of a juicer comprises a rod body and spiral ribs. The spiral ribs are arranged on the periphery of the rod body. A supporting ring is also arranged on the periphery of the middle part of the rod body. A plurality of discharge openings are distributed circumferentially on the supporting ring.

[0006] The purpose of the utility model can also be solved by the following technical measures:

[0007] As a more specific solution, the outer diameter of the rod body close to the upper surface of the supporting ring is larger than the outer diameter of the rod body below the supporting ring.

[0008] As a further solution, the spiral ribs are provided between the upper and lower ends of the rod body, a discharge groove is formed between two adjacent spiral ribs, and the upper side of the discharge port is opposite to the discharge groove located above it.

[0009] As a further solution, the discharge openings are evenly distributed and are open or closed.

[0010] As a further solution, a crushing blade is provided on one side of the support ring corresponding to the discharge opening, and the crushing blade is extended along the rotation direction of the pressing screw.

[0011] As a further solution, the spiral ribs include pre-cut spiral cutter head ribs, spiral extrusion ribs and spiral fine extrusion ribs distributed from top to bottom, the pre-cut spiral cutter head ribs and spiral extrusion ribs are located above the supporting ring, and the spiral fine extrusion ribs are located below the supporting ring.

[0012] As a further solution, a juicer includes:

[0013] A juice collecting cup, wherein the juice collecting cup is provided with a slag discharge port and a juice outlet;

[0014] A filter cover, wherein the filter cover is embedded in the lower part of the inner cavity of the juice collecting cup, and the top surface of the filter cover is provided with an annular step surface;

[0015] The squeezing screw is embedded in the filter housing at the following position corresponding to the supporting ring, and an extrusion gap is formed between the squeezing screw and the filter housing, and the squeezing screw is placed on the annular step surface through the supporting ring;

[0016] A feed cup, wherein a hopper is integrally formed at the bottom of the feed cup, the hopper is embedded in the upper part of the inner cavity of the juice collecting cup and is detachably connected to the juice collecting cup, the bottom surface of the hopper is pressed against the top surface of the filter cover, and the supporting ring is limited between the bottom surface of the hopper and the annular step surface, and the part above the supporting ring of the pressing screw is placed in the hopper.

[0017] As a further solution, at least a part of the area of ​​the discharge port is suspended above the extrusion seam, and a scrap introduction inclined surface is provided on the inner side of the annular step surface corresponding to the suspended position of the discharge port.

[0018] As a further solution, an outer positioning ring is extended from the bottom wall of the juice collecting cup, and the bottom of the filter cover is coaxially embedded in the outer positioning ring; an inner positioning ring is extended from the middle of the bottom wall of the juice collecting cup, and the lower part of the pressing screw is cylindrical and coaxially nested outside the inner positioning ring; a connecting shaft is provided at the bottom of the pressing screw, and the connecting shaft passes through the inner positioning ring and extends out of the juice collecting cup.

[0019] As a further solution, the filter cover includes an upper filter cylinder and a lower filter cylinder; the upper filter cylinder includes at least a plurality of upper ribs arranged at equal intervals, and the lower filter cylinder includes at least a plurality of lower ribs arranged at equal intervals, and after the plurality of upper ribs and the lower ribs are circumferentially offset and plugged into each other up and down, a filter seam connecting the extrusion seam and the inner cavity of the juice collecting cup is formed between adjacent upper ribs and lower ribs, and the upper ribs are provided with extrusion convex ribs extending inwardly, and the extrusion convex ribs are longitudinally arranged on the upper ribs; or, the filter cover is integrally formed, and a plurality of extrusion convex ribs are annularly distributed on the inner wall of the cover, and the extrusion convex ribs are longitudinally arranged, and the inner wall of the cover between the extrusion convex ribs is provided with filter holes, filter nets or filter seams.

[0020] The beneficial effects of the utility model are as follows:

[0021] (1) The squeezing screw of the utility model can be supported by a middle supporting ring, so that it can rotate more smoothly when squeezing juice; and by crimping and fixing the screw at the middle position, the force acting on the squeezing screw is evenly dispersed at the upper and lower parts, so that the squeezing screw can maintain axial rotation while eliminating the need for a positioning point at the top of the squeezing screw, so that the pre-cutting cutter head in the squeezing screw can crush the fruits and vegetables at the center of the hopper, thereby improving the juice extraction efficiency;

[0022] (2) Compared with the traditional structure, the juicer of the utility model uses the annular step surface on the top surface of the filter cover and the bottom surface of the hopper to limit the support ring up and down, thereby reducing the up and down jumping of the pressing screw when working. In addition, the discharge port of the support ring cooperates with the bottom surface of the hopper to form a certain shearing function, which shears the coarse fiber food passing through the discharge port, thereby forming more efficient juice extraction at the lower section of the pressing screw.

[0023] (3) The juice collecting cup, filter cover, pressing screw and feed cup of the utility model can be disassembled into multiple independent parts, which is convenient for users to clean and rinse, making the cleaning of each part cleaner and more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic cross-sectional structure diagram of Example 1 of the present utility model.

[0025] Figure 2 It is a schematic diagram of the exploded structure in the utility model.

[0026] Figure 3 This is a schematic diagram of the squeezing screw structure of Example 1 in the utility model.

[0027] Figure 4 The utility model is a schematic diagram of the cross-sectional structure of the juice collecting cup.

[0028] Figure 5 This is a schematic diagram of the decomposition structure of the filter cover in the utility model.

[0029] Figure 6 It is a cross-section diagram of the filter cover and a partially enlarged structural diagram of the present invention.

[0030] Figure 7 This is a schematic diagram of the cross-sectional structure of the feed cup in the utility model.

[0031] Figure 8 This is a structural schematic diagram of Example 2 of the present utility model.

[0032] Fig. 9 This is a schematic structural diagram of another embodiment of the filter cover in the utility model.

[0033] Fig.10 for Fig. 9 Schematic diagram of the structure from another angle. DETAILED DESCRIPTION

[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0035] like Figure 3 As shown, a squeezing screw 3 of a juicer comprises a rod body 34 and spiral ribs. The spiral ribs are arranged on the periphery of the rod body 34. A supporting ring 31 is also arranged on the middle periphery of the rod body 34. A plurality of discharge ports 32 are distributed circumferentially on the supporting ring 31.

[0036] The outer diameter of the rod body 34 close to the upper surface of the supporting ring 31 is greater than the outer diameter of the rod body 34 below the supporting ring 31 .

[0037] The spiral ribs are disposed between the upper and lower ends of the rod body 34 , and a discharge groove is formed between two adjacent spiral ribs. The upper side of the discharge port 32 is opposite to the discharge groove located above it.

[0038] The discharge ports 32 are evenly distributed, and the discharge ports 32 are open or closed. Figure 8 shown.

[0039] A crushing blade 312 is provided on one side of the support ring 31 corresponding to the discharge opening 32 , and the crushing blade 312 is extended along the rotation direction of the pressing screw 3 .

[0040] The spiral ribs include pre-cutting spiral cutter head ribs 35, spiral extrusion ribs 342 and spiral fine extrusion ribs 341 distributed from top to bottom. The pre-cutting spiral cutter head ribs 35 and spiral extrusion ribs 342 are located above the supporting ring 31, and the spiral fine extrusion ribs 341 are located below the supporting ring 31.

[0041] like Figures 1 to 7 As shown, a juicer comprises:

[0042] A juice collecting cup 1, wherein the juice collecting cup 1 is provided with a slag discharge port 101 and a juice outlet 102;

[0043] A filter cover 2, wherein the filter cover 2 is embedded in the lower part of the inner cavity of the juice collecting cup 1, and a ring-shaped step surface 201 is provided on the top surface of the filter cover 2;

[0044] The pressing screw 3 includes a rod body 34 and spiral ribs. The spiral ribs are arranged on the periphery of the rod body 34. A supporting ring 31 is also arranged on the middle periphery of the rod body 34. A plurality of discharge ports 32 are distributed circumferentially on the supporting ring 31.

[0045] The outer diameter of the rod body 34 close to the upper surface of the supporting ring 31 is greater than the outer diameter of the rod body 34 below the supporting ring 31 .

[0046] The spiral ribs are disposed between the upper and lower ends of the rod body 34 , and a discharge groove is formed between two adjacent spiral ribs. The upper side of the discharge port 32 is opposite to the discharge groove located above it.

[0047] The discharge ports 32 are evenly distributed, and the discharge ports 32 are open or closed. Figure 8 shown.

[0048] A crushing blade 312 is provided on one side of the support ring 31 corresponding to the discharge opening 32 , and the crushing blade 312 is extended along the rotation direction of the pressing screw 3 .

[0049] The spiral ribs include pre-cutting spiral blade ribs 35, spiral extrusion ribs 342 and spiral fine extrusion ribs 341 distributed from top to bottom. The pre-cutting spiral blade ribs 35 and spiral extrusion ribs 342 are located above the support ring 31, and the spiral fine extrusion ribs 341 are located below the support ring 31. The pre-cutting spiral blade ribs 35 are placed in the middle of the hopper 5; after being crushed by the pre-cutting spiral blade ribs 35, the fruits and vegetables in the hopper 5 can be quickly dispersed around the entire rod body 34, and are cut and finely squeezed for a second time under the action of the spiral extrusion ribs 342 and the spiral fine extrusion ribs 341, thereby improving the juice extraction efficiency.

[0050] The squeezing screw 3 is embedded in the filter housing 2 at the following position corresponding to the supporting ring 31, and an extrusion gap 301 is formed between the squeezing screw 3 and the filter housing 2, and the squeezing screw 3 is placed on the annular step surface 201 through the supporting ring 31;

[0051] A feed cup 4, wherein a hopper 5 is integrally formed at the bottom of the feed cup 4, wherein the hopper 5 is embedded in the upper part of the inner cavity of the juice collecting cup 1 and is detachably connected to the juice collecting cup 1, wherein the bottom surface of the hopper 5 is pressed against the top surface of the filter cover 2, and the supporting ring 31 is limited between the bottom surface of the hopper 5 and the annular step surface 201, and the portion of the pressing screw 3 above the supporting ring 31 is placed in the hopper 5.

[0052] Compared with the traditional structure, this juicer uses the annular step surface 201 on the top surface of the filter cover 2 and the bottom surface of the hopper 5 to limit the support ring 31 up and down, and can also leave a gap between the bottom surface of the hopper 5 and the support ring 31, so that the support ring 31 remains loose up and down, reducing the resistance caused by friction, and making the rotation of the pressing screw 3 smoother;

[0053] By crimping and fixing the screw at the middle position, the force acting on the pressing screw 3 is evenly distributed at the upper and lower parts, so that the pressing screw 3 can keep the axis rotation while eliminating the need for positioning the top end of the pressing screw 3, so that the pre-cutting cutter head in the pressing screw 3 can crush the fruits and vegetables at the center of the hopper 5, thereby improving the juice extraction efficiency;

[0054] And after the juicer is used, the juice collecting cup 1, the filter cover 2, the pressing screw 3 and the feed cup 4 can be disassembled into multiple independent parts, which is convenient for the user to clean and rinse, so that each part can be cleaned more cleanly and thoroughly.

[0055] A crushing blade 312 is provided on one side of the supporting ring ring 31 corresponding to the discharge port 32. The crushing blade 312 is extended along the rotation direction of the pressing screw 3. The crushing blade 312 is a double-sided blade or a single-sided blade. If it is a single-sided blade, the blade surface faces downward. During the juicing process, when the fruit and vegetable pieces in the hopper 5 are stuck in the discharge port 32, the crushing blade 312 rotates with the supporting ring ring 31 to cut the fruit and vegetable pieces, so that the fruit and vegetable pieces are chopped and enter the extrusion gap 301 for subsequent extrusion.

[0056] At least part of the area of ​​the discharge port 32 is suspended above the extrusion slit 301, and a crushed material introduction inclined surface 202 is provided on the inner side of the annular step surface 201 corresponding to the suspended position of the discharge port 32; the annular step surface 201 plays a supporting role while not affecting the material drop efficiency of the discharge port 32; in addition, the crushed material introduction inclined surface 202 can ensure that fruits and vegetables can quickly fall into the extrusion slit 301 after entering the discharge port 32.

[0057] In the second embodiment, the support ring 31 includes a plurality of support lugs 33 distributed at equal intervals, and a discharge port 32 is formed between two adjacent support lugs 33 .

[0058] A juice outlet 501 connected to the inner cavity of the juice collecting cup 1 is provided on the wall surface of the hopper 5, and a juice residue filter 502 is arranged in the juice outlet 501; when the upper part of the pressing screw 3 crushes the fruits and vegetables in the hopper 5, a small amount of juice will also be generated, so the juice flows into the juice collecting cup 1 through the juice outlet 501 for collection, and the juice residue filter 502 can prevent the blocky fruits and vegetables from entering the juice outlet 501.

[0059] An outer positioning ring 11 extends from the bottom wall of the juice collecting cup 1, and the bottom of the filter cover 2 is coaxially embedded in the outer positioning ring 11; an inner positioning ring 12 extends from the middle of the bottom wall of the juice collecting cup 1, and the lower part of the pressing screw 3 is cylindrical and coaxially embedded outside the inner positioning ring 12; a connecting shaft 36 is provided at the bottom of the pressing screw 3, and the connecting shaft 36 passes through the inner positioning ring 12 and extends out of the juice collecting cup 1; the outer positioning ring 11 and the inner positioning ring 12 can respectively position the bottom of the filter cover 2 and the bottom of the pressing screw 3, ensuring that the filter cover 2 and the juice collecting cup 1 are concentrically arranged and that the pressing screw 3 can rotate coaxially.

[0060] The filter cover 2 includes an upper filter cylinder 21 and a lower filter cylinder 22; the upper filter cylinder 21 includes at least a plurality of upper ribs 211 arranged at equal intervals, and the lower filter cylinder 22 includes at least a plurality of lower ribs 221 arranged at equal intervals. After the plurality of upper ribs 211 and the lower ribs 221 are circumferentially staggered and plugged into each other up and down, a filter seam 23 connecting the extrusion seam 301 and the inner cavity of the juice collecting cup 1 is formed between adjacent upper ribs 211 and lower ribs 221, and the upper ribs 211 are provided with an extrusion convex rib 214 extending inwardly, and the extrusion convex rib 214 is longitudinally arranged on the upper rib 211.

[0061] This filter cover 2 is easy to assemble and disassemble because the upper filter cylinder 21 and the lower filter cylinder 22 are inserted and assembled up and down. After use, the upper filter cylinder 21 and the lower filter cylinder 22 are disassembled up and down, and the wide gap between the upper filter cylinder 21 and the lower filter cylinder 22 is rinsed with water, making cleaning convenient, quick, thorough, and residue-free. The cleanability of the filter cover 2 can be significantly improved, and residue residues can be prevented from remaining in a humid environment to cause bacterial growth, thereby improving the hygiene of the juice extraction equipment.

[0062] The filter upper cylinder 21 also includes an upper support ring 212, and several upper ribs 211 are connected to the bottom surface of the upper support ring 212. The filter lower cylinder 22 also includes a lower support ring 222, and several lower ribs 221 are connected to the top surface of the upper support ring 212; and a limiting recess 213 is provided in the upper rib 211, and a limiting convex portion 223 that cooperates with the limiting recess 213 extends from the top surface of the lower support ring 222; the limiting convex portion 223 supports the bottom of the upper rib 211, so that the bottom of the upper rib 211 is not easily deformed or damaged by force, and the pressing effect is stable.

[0063] In this embodiment, the upper rib 211 and the lower rib 221 are in an equilateral trapezoidal structure, and the limiting recess 213 is provided on the outer wall along the length direction of the upper rib 211 and the lower rib 221. On the one hand, the weight of the filter cover 2 can be reduced, and on the other hand, the limiting recess 213 can cooperate with the limiting protrusion 223 for the upper rib 211 to support the bottom of the upper rib 211, and the shape of the limiting protrusion 223 matches the cross-sectional shape of the limiting recess 213.

[0064] The outer wall of the hopper 5 is provided with a plurality of circumferentially evenly distributed snap-fitting protrusions 503, and the inner wall of the cup mouth of the juice collecting cup 1 is provided with a plurality of rotating snap-fitting blocks 13 corresponding to the snap-fitting protrusions 503. The L-shaped rotating snap-fitting blocks 13 are circumferentially rotated with the snap-fitting protrusions 503, so that the feed cup 4 can be detachably connected to the upper side of the juice collecting cup 1; the rotary buckle connection can realize quick disassembly cooperation, and in addition, after being assembled in place, a downward thrust can be formed on the feed cup 4 to ensure that the bottom surface of the hopper 5 is pressed against the top surface of the filter cover 2.

[0065] In addition, the top of the filter cover 2 extends outwardly with an outer flange 24 that is adapted to the inner diameter of the juice collecting cup 1, and the upper surface of the outer flange 24 forms the top surface of the filter cover 2. The bottom of the hopper 5 extends outwardly with a bottom flange 504 that is adapted to the inner diameter of the juice collecting cup 1, and the lower surface of the bottom flange 504 forms the bottom surface of the hopper 5. The bottom flange 504 is pressed against the top of the outer flange 24, and the bottom flange 504 and the outer flange 24 help the filter cover 2 and the hopper 5 to be concentrically arranged in the juice collecting cup 1.

[0066] Also in this embodiment, a plurality of spiral spoiler ribs 505 are arranged circumferentially on the inner wall surface of the upper portion of the hopper 5, and a plurality of longitudinal spoiler ribs 506 are arranged circumferentially on the inner wall surface of the lower portion of the hopper 5. The spiral spoiler ribs 505 and the longitudinal spoiler ribs 506 can improve the crushing efficiency of fruits and vegetables.

[0067] The above-mentioned filter cover 2 is not the only solution, and it can be designed as follows Fig. 9 and 10 The shape shown is specifically: the filter cover 2 is integrally formed, and a plurality of extruded ribs 214 are annularly distributed on the inner wall of the cover. The extruded ribs 214 are longitudinally arranged, and filter holes 25 are arranged on the inner wall of the cover between the extruded ribs 214 and the extruded ribs 214.

[0068] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A squeezing screw of a juicer, comprising a rod body (34) and spiral ribs, wherein the spiral ribs are arranged on the outer periphery of the rod body (34), characterized in that: A supporting ring (31) is also provided on the outer periphery of the middle portion of the rod body (34), and a plurality of discharge openings (32) are distributed circumferentially on the supporting ring (31).

2. The squeezing screw of the juicer according to claim 1, characterized in that The outer diameter of the rod body (34) close to the upper surface of the supporting ring (31) is greater than the outer diameter of the rod body (34) below the supporting ring (31).

3. The squeezing screw of the juicer according to claim 1, characterized in that The spiral ribs are provided between the upper and lower ends of the rod body (34), and a discharge groove is formed between two adjacent spiral ribs. The upper side of the discharge port (32) is opposite to the discharge groove located above it.

4. The squeezing screw of the juicer according to claim 1, characterized in that The discharge openings (32) are evenly distributed and are in an open or closed shape.

5. The squeezing screw of the juicer according to claim 1, characterized in that A material crushing blade (312) is provided on one side of the support ring (31) corresponding to the discharge opening (32), and the material crushing blade (312) is extended along the rotation direction of the pressing screw (3).

6. The squeezing screw of a juicer according to claim 1, characterized in that The spiral ribs include pre-cutting spiral cutter head ribs (35), spiral extrusion ribs (342) and spiral fine extrusion ribs (341) distributed from top to bottom, the pre-cutting spiral cutter head ribs (35) and spiral extrusion ribs (342) are located above the supporting ring (31), and the spiral fine extrusion ribs (341) are located below the supporting ring (31).

7. A juicer, characterized in that ,include: A juice collecting cup (1), wherein the juice collecting cup (1) is provided with a slag discharge port (101) and a juice outlet (102); A filter cover (2), the filter cover (2) being embedded in the lower part of the inner cavity of the juice collecting cup (1), and the top surface of the filter cover (2) being provided with an annular step surface (201); The pressing screw according to any one of claims 1 to 6, wherein the pressing screw is embedded in the filter cover (2) at the following position corresponding to the supporting ring (31), and an extrusion gap (301) is formed between the pressing screw and the filter cover (2), and the pressing screw is placed on the annular step surface (201) through the supporting ring (31); A feed cup (4), wherein a hopper (5) is integrally formed at the bottom of the feed cup (4), the hopper (5) being embedded in the upper part of the inner cavity of the juice collecting cup (1) and being detachably connected to the juice collecting cup (1), the bottom surface of the hopper (5) being pressed against the top surface of the filter cover (2), and the supporting ring (31) being limited between the bottom surface of the hopper (5) and the annular step surface (201), and the portion of the pressing screw above the supporting ring (31) being placed in the hopper (5).

8. A juicer according to claim 7, characterized in that At least a portion of the discharge port (32) is suspended above the extrusion seam (301), and a crushed material introduction inclined surface (202) is provided on the inner side of the annular step surface (201) corresponding to the suspended position of the discharge port (32).

9. The juicer according to claim 7, characterized in that An outer positioning ring (11) is extended from the bottom wall of the juice collecting cup (1), and the bottom of the filter cover (2) is coaxially embedded in the outer positioning ring (11); an inner positioning ring (12) is extended from the middle of the bottom wall of the juice collecting cup (1), and the lower part of the squeezing screw is cylindrical and coaxially embedded outside the inner positioning ring (12); a connecting shaft (36) is provided at the bottom of the squeezing screw, and the connecting shaft (36) passes through the inner positioning ring (12) and extends out of the juice collecting cup (1).

10. The juicer according to claim 7, characterized in that The filter cover (2) comprises an upper filter cylinder (21) and a lower filter cylinder (22); the upper filter cylinder (21) comprises at least a plurality of upper ribs (211) arranged at equal intervals, and the lower filter cylinder (22) comprises at least a plurality of lower ribs (221) arranged at equal intervals, and after the plurality of upper ribs (211) and the lower ribs (221) are circumferentially staggered and plugged into each other up and down, a filter slit (23) communicating with an extrusion slit (301) and an inner cavity of the juice collecting cup (1) is formed between adjacent upper ribs (211) and lower ribs (221); and the upper ribs (211) are provided with extrusion convex ribs (214) extending inwardly, and the extrusion convex ribs (214) are longitudinally arranged on the upper ribs (211). Alternatively, the filter cover (2) is integrally formed, and a plurality of extruded ribs (214) are provided in an annular manner on the inner wall of the cover, the extruded ribs (214) are arranged longitudinally, and filter holes (25), filter nets or filter slits are provided on the inner wall of the cover between the extruded ribs (214) and the extruded ribs (214).

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