Squeezing type juice extractor capable of efficiently extracting juice

Abstract

The utility model relates to a squeezing type juicer capable of squeezing juice efficiently. The squeezing type juicer comprises a machine base with a motor and a juice collecting cup installed above the machine base, a fixed squeezing sleeve is arranged in the juice collecting cup, a filtering cover is detachably arranged in the juice collecting cup, and a juice collecting cavity and a squeezing gap are formed between the filtering cover and the juice collecting cup or the fixed squeezing sleeve. The filtering cover is composed of an outer filtering cylinder and an inner filtering cylinder, a filtering gap is formed between the outer filtering cylinder and the inner filtering cylinder, the extrusion screw is arranged above the filtering cover and is driven by the motor to drive the filtering cover to axially rotate, and the juice collecting cup is detachably covered with the discharging cup. A squeezed material crushing cavity for accommodating the squeezing screw rod and a discharging opening communicated with the squeezed material crushing cavity are formed in the blanking cup; according to the juicer, friction between the filter cover and the extrusion screw rod is completely avoided, the service life of each component can be prolonged, the filter cover is assembled by vertically inserting the filter outer cylinder and the filter inner cylinder, so that the assembly and the disassembly are simple and convenient, and the cleaning property of the filter cover can be obviously improved.

Description

Technical Field

[0001] The utility model relates to the field of juicers, in particular to an extrusion type juicer for efficient juice extraction. Background Art

[0002] The existing juicer structure generally puts food and other materials into the feeding port, and then grinds and squeezes the food through the grinding head and the inner wall of the filter screen to separate the residue from the juice. The juice is discharged from the juice inlet and the residue is discharged from the residue outlet. The existing filter cover is as follows:

[0003] Prior art 1, as shown in the structure of "A large-caliber low-speed juicer" with Chinese patent document application number: CN201610391760.9, the publicly recorded content includes a squeezing frame (4) with a filtering function and a squeezing roller (6) driven by a motor to rotate axially. During the juicing process, the squeezing roller (6) is arranged inside the squeezing frame (4) and rotates axially, which will cause long-term friction between the squeezing roller and the squeezing frame, resulting in a reduction in the life of each component.

[0004] Prior art 2, as shown in the structure of "a juicer and its juice extraction component" with Chinese patent document application number: CN 201620493832.6, the public record of which is that after the hollow filter is buckled and fixed with the screw assembly, the screw assembly drives the hollow filter to rotate to achieve squeezing. Although this structure can solve the defects of prior art 1, its public record also includes "the hollow filter and the internal thread thereon are made of stainless steel." and "the hollow filter is a porous filter with at least one filter hole thereon"; the filter cover uses a metal mesh structure to separate the residue and the juice, and the residue easily blocks the mesh, resulting in low juice extraction rate and low juice extraction efficiency. Moreover, after use, the residue accumulates in the metal mesh, making it difficult to clean. Long-term use of the residual residue will breed bacteria, which is prone to food hygiene and safety problems;

[0005] In addition, since the hollow filter and the screw assembly adopt a rotating buckle structure, when the juicing is completed, when the user needs to disassemble the hollow filter and the screw assembly for cleaning, he needs to hold the hollow filter and the screw assembly with both hands where there is still residual pomace or juice and apply force in opposite directions. This method makes the hollow filter and the screw assembly difficult to disassemble and clean, which is very uncomfortable for people with obsessive-compulsive disorder. In addition, juice or pomace may accumulate in the rotating buckle structure, causing increased adhesion and making it difficult to disassemble.

[0006] The above two prior arts both achieve the function of separating residue and juice through their own technical solutions, but there are still structural defects. Therefore, the applicant improves and perfects the structure and, based on the existing technology, provides a new technical solution that can replace the above-mentioned prior art 1 or 2 and effectively solve the cleaning difficulty for consumers to choose and use. Utility Model Content

[0007] The purpose of the utility model is to solve the above-mentioned existing problems and provide a simple and reasonable structure of an efficient juice squeezing squeeze juicer, the main function of which is to use the filter cover to be inserted and assembled up and down through the filter outer cylinder and the filter inner cylinder, so that assembly and disassembly are simple and the cleanability of the filter cover can be significantly improved.

[0008] A highly efficient squeezing juicer comprises a base with a built-in motor, a juice collecting chamber placed on the base, a juice squeezing assembly detachably arranged in the juice collecting chamber, and a drop cup covering the juice collecting chamber, wherein a screw shaft is arranged on the squeezing screw, and the lower part of the screw shaft passes through the juice collecting chamber and is connected to the motor shaft of the motor, and the juice squeezing assembly comprises a filter cover and a squeezing screw;

[0009] The filter housing comprises a filter outer cylinder and a filter inner cylinder, wherein a plurality of vertically arranged slits are circumferentially provided on the cylinder wall of the filter outer cylinder; the filter inner cylinder is detachably and tightly fitted inside the filter outer cylinder, and the filter inner cylinder comprises a plurality of ribs inserted into the slits from the inner side of the filter outer cylinder, and a spiral rib connected to the inner side of the ribs and used to support the plurality of ribs to form a circumferential arrangement;

[0010] When the filter inner cylinder and the filter outer cylinder are combined with each other, the inner side surface of the filter outer cylinder abuts against or is close to the outer side surface of the spiral rib, and a filter gap for separating juice and residue is formed between the rib and the cut;

[0011] The extrusion screw is provided with a quick-release connection portion that cooperates with the filter cover, and the extrusion screw is supported by the quick-release connection portion to be longitudinally placed above the filter cover and to form an axial transmission connection with the filter cover. At least one spiral cutting blade extends from the outer surface of the extrusion screw, and an inward-outward extrusion spiral groove that is continuously connected as a whole is formed between the spiral rib and the spiral cutting blade.

[0012] The purpose of the utility model can also be solved by the following technical measures:

[0013] As a more specific solution, the multiple ribs include a plurality of wide ribs and a plurality of narrow ribs, the plurality of wide ribs are evenly spaced along the circumference of the filter inner tube, one or more narrow ribs are arranged between two connected wide ribs, and the slit width of the filter outer tube matches the corresponding wide ribs or narrow ribs.

[0014] As a further solution, a plurality of radially extending transmission support plates are circumferentially arranged at the bottom of the extrusion screw, and the plurality of transmission support plates form a quick-release connection portion. A landing groove adapted to accommodate the transmission support plate is arranged on the top of the filter cover. The extrusion screw is directly confined in the landing groove by the transmission support plate to form a transmission connection with the filter cover, and a squeezed material passage port connecting the inward and outward extrusion spiral groove is formed between two adjacent transmission support plates.

[0015] As a further solution, the filter outer cylinder also includes an outer ring integrally connected to the top of the cylinder wall, the inner side surface of the outer ring is provided with a ring step surface, and a plurality of outer grooves are circumferentially provided on the ring step surface; the filter inner cylinder also includes an upper ring integrally connected to the top of each rib, the upper ring is tightly fitted on the top surface of the cylinder wall, and an inner groove is provided with the same width as the outer groove, and the inner groove and the outer groove form a landing groove.

[0016] As a further solution, each spiral rib is connected to at least half of the ribs of the filter inner tube, and the head end of the spiral rib spirally extends from the top of a rib to the bottom end of any rib; and the height of the spiral rib protruding from the inner side of the rib decreases linearly from the upper head end to the lower tail end.

[0017] As a further solution, a retaining wall is provided at the bottom of the slit, and the retaining wall is placed radially outward of the bottom of the rib and is disposed against or closely adjacent to the outer side surface of the rib.

[0018] As a further solution, the retaining wall is formed by extending upward from the bottom of the slit, and the extended height of the retaining wall accounts for between 2% and 10% of the overall height of the slit.

[0019] As a further solution, the width of the rib decreases linearly from top to bottom, and the corresponding slit width matches the rib width, so that the filtering gap between the rib and the slit maintains uniform or similar widths from top to bottom.

[0020] As a further solution, the radial thickness of the cylinder wall increases linearly from top to bottom, and the thickness only increases on the inner side of the cylinder wall. Through the gradually thickening cylinder wall, the outer side of the ribs gradually changes from partially protruding outside the slit to being retracted into the slit, and the depth of the retraction increases as it goes downwards.

[0021] As a further solution, it also includes a juice collecting cup detachably placed on the machine base, a juice collecting cavity is formed between the juice collecting cup and the filter cover; a fixed extrusion sleeve with a plurality of extrusion ribs arranged along the outer peripheral surface extends in the middle of the juice collecting cavity; an extrusion gap is formed between the fixed extrusion sleeve and the filter cover, a juice outlet channel connected to the juice collecting cavity and a slag discharge channel connected to the extrusion gap are provided at the bottom of the juice collecting cup; a pressed material crushing cavity for accommodating the extrusion screw and a discharge port connected to the pressed material crushing cavity are provided in the drop cup.

[0022] The beneficial effects of the utility model are as follows:

[0023] (1) The utility model discloses an efficient squeezing juicer, in which a filter cover is rotatably arranged on the outer periphery of a fixed squeezing sleeve for use, and an squeezing screw is arranged above the filter cover for chopping the original block of squeezed material, which can completely avoid friction between the filter cover and the squeezing screw and can extend the service life of each component.

[0024] (2) The utility model is a high-efficiency squeeze juicer. This juicer can squeeze juice by rotating the filter cover axially, so that the squeezed material moves downward along the inner squeeze spiral groove. This can completely avoid the occurrence of unsmooth rotation and jamming of the screw rod caused by the influence of residue during the juice extraction process. This can improve the juice extraction efficiency and is not prone to blockage. In addition, the juice extraction path is simple and direct, reducing the tortuous juice extraction path during the juice extraction process, thereby improving the juice extraction efficiency and juice extraction rate.

[0025] In addition, after the juice is squeezed, after removing the drop cup from the juice collecting cup, you only need to simply lift the extrusion screw to make the transmission support plate go straight up and leave the landing groove to separate it from the filter cover. The assembly and disassembly is simple, fast and easy, and it is easy to keep the user's hands clean and hygienic.

[0026] (3) The utility model is a high-efficiency squeeze juicer, in which the filter cover supports the outer side of the bottom of the ribs by means of a retaining wall. When the ribs are squeezed from the inside to the outside by the squeezed material, even if the part of the bottom of the ribs that is not supported by the spiral ribs can still avoid deformation or breakage to the outside, thus maintaining the stability of the filter gap structure and the filtering effect;

[0027] At the same time, after the filter outer cylinder and the filter inner cylinder are assembled, even if the filter gap between the bottom surface of the rib and the bottom surface of the cut is too large, the outside of the filter gap can be blocked by the retaining wall, and it can be offset against the outer side of the rib to prevent residue from passing through the filter cover through the larger filter gap, which also plays a filtering role.

[0028] (4) The utility model is a high-efficiency squeeze juicer. Since the filter cover is assembled by inserting the filter outer cylinder and the filter inner cylinder up and down, it is easy to assemble and disassemble. After use, the filter outer cylinder and the filter inner cylinder are disassembled up and down, and the ribs and spiral ribs arranged at wide intervals on the filter inner cylinder and the wide slits on the filter outer cylinder are rinsed with water, making cleaning convenient, quick, thorough and residue-free. The cleanability of the filter cover can be significantly improved, and the residue residue can be prevented from remaining in a moist environment to cause bacterial growth, thereby improving the hygiene of the juice extraction equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the cross-sectional structure of the juicer of the utility model.

[0030] Figure 2 It is a schematic diagram of the partial exploded structure of the juice extractor of the utility model.

[0031] Figure 3 This is a schematic diagram of the structure of the juice collecting cup of the utility model.

[0032] Figure 4 It is a schematic diagram of the disassembly and assembly structure of the filter outer cylinder and the filter inner cylinder of the utility model.

[0033] Figure 5 This is a schematic diagram of the cross-sectional structure of the filter cover of the present utility model.

[0034] Figure 6 for Figure 5 Enlarged structural diagram of C1 in the middle.

[0035] Figure 7 This is a schematic diagram of the structure of the filter inner cylinder of the utility model unfolded based on the same spiral rib.

[0036] Figure 8 It is a schematic diagram of the positions of two horizontal sections of the utility model.

[0037] Fig. 9 for Figure 8 Schematic diagram of the cross-sectional structure of the disassembly and assembly of the filter outer cylinder and the filter inner cylinder at AA in the middle.

[0038] Fig.10 for Figure 8 Schematic diagram of the cross-sectional structure of the disassembly and assembly of the filter outer cylinder and the filter inner cylinder at BB in the middle.

[0039] Fig.11 for Fig. 9 A1 is an enlarged schematic diagram of the structure.

[0040] Fig.12 for Fig.10 Enlarged structural diagram at B1 in the middle.

[0041] Fig.13 It is a schematic diagram of the changing trend of the ribs and the cutting seams of the utility model.

[0042] Fig.14 It is a schematic diagram of the cross-sectional structure of the filter outer cylinder of the utility model. DETAILED DESCRIPTION

[0043] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0044] like Figures 1 to 14As shown: an efficient squeezing juicer, comprising a base 1 with a motor 2 built in, a juice collecting chamber placed on the base 1, a juice squeezing assembly detachably arranged in the juice collecting chamber 3-5, and a drop cup 10 covering the juice collecting chamber 3-5, the juice squeezing assembly is provided with a screw shaft 92, the lower part of the screw shaft 92 passes through the juice collecting chamber 3-5 and is connected to the motor shaft of the motor 2, characterized in that: the juice squeezing assembly comprises a filter cover 5 and an extrusion screw 9;

[0045] The filter housing 5 comprises a filter outer cylinder 6 and a filter inner cylinder 7, wherein a plurality of vertically arranged slits 61 are circumferentially provided on the cylinder wall of the filter outer cylinder 6; the filter inner cylinder 7 is detachably and tightly fitted inside the filter outer cylinder 6, and the filter inner cylinder 7 comprises a plurality of ribs 71 inserted into the slits 61 from the inner side of the filter outer cylinder 6, and a spiral rib 72 connected to the inner side of the ribs 71 and used to support the plurality of ribs 71 to form a circumferential arrangement;

[0046] When the filter inner cylinder 7 and the filter outer cylinder 6 are combined with each other, the inner side surface of the filter outer cylinder 6 abuts against or is close to the outer side surface of the spiral rib 72, and a filter gap 8 for separating juice and residue is formed between the rib 71 and the cut slit 61;

[0047] The extrusion screw 9 is provided with a quick-release connection portion that cooperates with the filter cover 5, and the extrusion screw 9 is supported by the quick-release connection portion to be longitudinally placed above the filter cover 5 and to form an axial transmission connection with the filter cover 5. The outer surface of the extrusion screw 9 has at least one spiral cutting edge 93 extending therefrom, and the spiral rib 72 and the spiral cutting edge 93 form an integrally continuous and connected inward and outward extrusion spiral groove 73, 94.

[0048] Specifically, an inward pushing spiral groove 73 communicating with the filter gap is formed between two adjacent spiral ribs 72 on the inner cylinder surface formed by the combination of the filter inner cylinder 7 and the filter outer cylinder 6, and the spiral cutting blade 93 forms an outward pushing spiral groove 94 by rotating.

[0049] This juicer rotates the filter cover 5 around the outer periphery of the fixed extrusion sleeve 4, and sets the extrusion screw above the filter cover 5 to chop the original block of squeezed material, which can completely avoid friction between the filter cover 5 and the extrusion screw 9 and extend the service life of each component.

[0050] Since the filter outer cylinder 6 and the filter inner cylinder 7 are inserted and assembled up and down, this filter structure is easy to assemble and disassemble. After use, the filter outer cylinder 6 and the filter inner cylinder 7 are disassembled up and down, and the ribs 71 and spiral ribs 72 arranged at wide intervals on the filter inner cylinder 7 and the wide slits 61 on the filter outer cylinder 6 are rinsed with water, making cleaning convenient, quick, thorough, and residue-free. The cleanability of the filter structure can be significantly improved, and the residue residue can be prevented from remaining in a moist environment to cause bacterial growth, thereby improving the hygiene of the juice extraction equipment.

[0051] The machine also includes a juice collecting cup 3 detachably placed on the machine base, a juice collecting chamber 3-5 is formed between the juice collecting cup 3 and the filter cover 5; a fixed extrusion sleeve 4 with a plurality of extrusion ribs 401 arranged along the outer peripheral surface extends in the middle of the juice collecting chamber 3-5; an extrusion gap 4-5 is formed between the fixed extrusion sleeve 4 and the filter cover 5, a juice outlet channel 31 connected to the juice collecting chamber 3-5 and a slag discharge channel 32 connected to the extrusion gap 4-5 are arranged at the bottom of the juice collecting cup 3; a pressed material crushing chamber 101 accommodating the extrusion screw 9 and a discharge port 1001 connected to the pressed material crushing chamber 101 are arranged in the blanking cup 10.

[0052] The fixed extrusion sleeve 4 is axially hollow to form a passage 402 for the screw shaft 92 to pass through. A through hole 403 is provided at the top of the passage 402. A sealing ring 11 is sleeved in the through hole 403 to seal against the surface of the screw shaft 92 and the bottom surface of the extrusion screw 9.

[0053] Since the spiral rib 72 has a certain inclination angle, at least one section of the bottom of the rib 71 is in a state where the spiral rib 72 cannot provide support. Therefore, when the filter cover 5 is used for squeezing, the squeezed material inside it generates an outward squeezing force. In addition, the squeezing force is greater as it goes downward. When the squeezing force is greater than the stress of the section of the rib 71, the rib 71 is deformed or broken, and at the same time, the bottom of the slit 61 is completely opened, allowing the residue to pass through the filter cover 5, resulting in failure of juice and residue separation.

[0054] Therefore, a retaining wall 62 is provided at the bottom of the slit 61, and the retaining wall 62 is placed radially outward of the bottom of the rib 71, and is disposed against or close to the outer side surface of the rib 71;

[0055] The outer side surface of the bottom of the rib 71 is supported by the retaining wall 62. When the rib 71 is subjected to the squeezing force of the pressed material from the inside to the outside, even if the part of the bottom of the rib 71 not supported by the spiral rib 72 can still avoid deformation or breakage to the outside, the structure of the filter gap 8 is stable and the filtering effect is maintained;

[0056] At the same time, after the filter outer cylinder and the filter inner cylinder are assembled, even if the filter gap between the bottom surface of the rib and the bottom surface of the cut is too large, the outside of the filter gap can be blocked by the retaining wall, and it can be offset against the outer side of the rib to prevent residue from passing through the filter cover through the larger filter gap, which also plays a filtering role.

[0057] In this embodiment, the retaining wall 62 is extended upward from the bottom of the slit 61, and the extended height H1 of the retaining wall 62 preferably accounts for about 3%-5% of the overall height H2 of the slit 61. The retaining wall 62 with this height ratio not only ensures the support for the ribs 71, but also reduces the impact on the juice extraction efficiency of the filtering gap 8.

[0058] The inner side surface of the retaining wall 62 is provided with an inclined guiding surface 621 for guiding the position of the rib 71 when the filter inner cylinder 7 is combined with the filter outer cylinder 6. When the filter inner cylinder 7 is assembled into the filter outer cylinder 6, the filter inner cylinder 7 may easily become eccentric, causing the bottom of the rib 71 to deviate to the top of the retaining wall 62. Therefore, the rib 71 can be reintroduced into the slit 61 through the inclined guiding surface 621, so that the rib 71 can be smoothly assembled to the bottom of the slit 61.

[0059] A plurality of radially extending transmission support plates 91 are circumferentially arranged at the bottom of the extrusion screw 9, and the plurality of transmission support plates 91 form a quick-release connection portion. A landing groove 51 adapted to accommodate the transmission support plate 91 is arranged on the top of the filter cover 5. The extrusion screw 9 is directly confined in the landing groove 51 by the transmission support plate 91 to form a transmission connection with the filter cover 5, and a squeezed material passage port 5-9 is formed between two adjacent transmission support plates 91 to connect the inward and outward extrusion spiral grooves 73 and 94.

[0060] The filtering outer cylinder 6 also includes an outer ring 63 integrally connected to the top of the cylinder wall 6a, the inner side surface of the outer ring 63 is provided with a ring step surface 64, and the ring step surface 64 is circumferentially provided with a plurality of outer grooves 65; a slit 61 with an open top and a closed bottom is formed on the cylinder wall 6a of the filtering outer cylinder 6; when the filtering inner cylinder 7 is inserted into the filtering outer cylinder 6 from top to bottom, the rib 71 can be inserted into the slit 61 from top to bottom through the open top of the slit 61, and the strength of the filtering outer cylinder 6 can be ensured by the outer ring 63 and the middle reinforcing hoop 66 provided in the middle position of the cylinder wall 6a, so that during the juicing process, the filtering outer cylinder 6 can provide better support for the filtering inner cylinder 7, and the cylinder wall 6a will not be deformed under the internal outward force during squeezing.

[0061] The filter inner cylinder 7 further includes an upper ring 74 integrally connected to the top of each rib 71, the upper ring 74 is tightly fitted on the top surface of the cylinder wall 6a, and an inner groove 75 is provided with the same width as the outer groove 65; the upper ring 74 can improve the strength of each rib 71, and it is not easy to be twisted and deformed during use, and the inner groove 75 and the outer groove 65 form a landing groove 51;

[0062] The bottom surface of the drop cup 10 is provided with a pressing ring 104 extending into the inner cavity of the juice collecting cup 3 corresponding to the squeezed material crushing chamber 101, and the outer ring 63 is nested on the outside of the pressing ring 104; the pressing ring 104 presses against the ring step surface 64 and fixes the transmission support plate 91 in the landing groove 51, so that the filter cover 5 can rotate stably following the extrusion screw 9.

[0063] In this embodiment, the spiral angle of each spiral rib 72 is exactly 360°, and each spiral rib 72 is connected to each other spiral rib 72 by injection molding, so the head end and the tail end of the same spiral rib 72 are connected to the same rib 71, the head end of the spiral rib 72 is arranged at the top end of the rib 71, and the tail end of the spiral rib 72 is arranged at the lowest end of the rib 71; so that the spiral rib 72 can better provide support for the rib 71, so that the rib 71 is not easily deformed when squeezing juice.

[0064] Furthermore, the height of the spiral rib 72 protruding from the inner side surface of the rib 71 decreases linearly from the head end at the top to the tail end at the bottom. Since the diameter of the inner cylinder surface formed by the combination of the filter inner cylinder 7 and the filter outer cylinder 6 actually decreases from top to bottom, this trend is for the purpose of making the extrusion gap of the squeezed material smaller in the filtering structure as it goes downward, thereby improving the juice extraction efficiency of the squeezed material. This is because the changing height of the spiral rib 72 can adapt to the change in the diameter of the inner cylinder surface and has a better guiding effect on the block-shaped squeezed material.

[0065] The width of the rib 71 decreases linearly from top to bottom, and the corresponding width of the slit 61 matches the width of the rib 71, so that the filter gap 8 between the rib 71 and the slit 61 maintains uniform or similar widths from top to bottom; the rib 71 with this changing trend helps to keep the rib 71 tightly combined with the slit 61 when the filter inner cylinder 7 is inserted into the filter outer cylinder 6 from top to bottom, thereby maintaining the stability of the width of the filter gap 8.

[0066] The multiple ribs 71 include a plurality of wide ribs 711 and a plurality of narrow ribs 712. The plurality of wide ribs 711 are evenly spaced along the circumference of the filter inner cylinder 7. One or more narrow ribs 712 are arranged between two connected wide ribs 711. The width of the slit 61 of the filter outer cylinder 6 matches the corresponding wide ribs 711 or narrow ribs 712. More narrow ribs 712 can form more filter gaps 8 on the filter inner cylinder 7. However, the narrow ribs 712 have poor support and rigidity and are prone to deformation during extrusion and rotation. Therefore, wide ribs 711 need to be arranged between the narrow ribs 712 so that the filter inner cylinder 7 has sufficient strength to transmit the force to the filter outer cylinder 6, thereby improving the overall strength of the filter structure.

[0067] In addition, the inner groove 75 corresponds to the wide rib 711 in radial direction one by one, and the inner groove 75 corresponds to the outer groove 65 to realize the anti-mistake effect, so that the wide rib 711 can be inserted into the corresponding wide slit 61, realize directional assembly, and improve the assembly efficiency of the filtering structure.

[0068] The radial thickness of the cylinder wall 6a increases linearly from top to bottom, and the thickness increases only on the inner side of the cylinder wall 6a. The outer side of the rib 71 gradually changes from partially protruding outside the slit 61 to being retracted into the slit 61 by the gradually thickening cylinder wall 6a, and the depth of the retraction increases as it goes downward (see Figures 11 to 13 As shown); the cylinder wall 6a can keep the outer side surface of the filter outer cylinder 6 on the same cylindrical surface, and increase the thickness on the inner side surface of the filter outer cylinder 6, so that the diameter of the inner cylinder surface composed of the filter inner cylinder 7 and the filter outer cylinder 6 becomes smaller as it goes down, and the radial width of the filter gap 8 becomes larger as it goes down, thereby improving the juice and residue separation effect.

[0069] A juice outlet opening 67 is provided on the radial outer side of the slit 61, and the juice outlet opening 67 is connected to the filter gap 8. The retaining wall 62 is provided between the juice outlet opening 67 and the slit 61, and the width of the juice outlet opening 67 increases as it approaches the radial outer side. This structure helps to improve the juice outlet efficiency and effectively reduce the occurrence of residue blocking the filter gap 8.

[0070] A positioning ring 33 for supporting the filter outer cylinder 6 is provided at the bottom of the juice collecting cup 3. A bottom edge flange 68 is extended from the bottom of the filter outer cylinder 6 and is nested inside the positioning ring 33. A slag collecting slope 69 is provided on the inner side of the bottom edge flange 68. A residue containing cavity communicating with the extrusion gap 4-5 is formed between the slag collecting slope 69 and the fixed extrusion sleeve 4. The inlet end of the slag discharge channel 32 is arranged corresponding to the residue containing cavity, and a plurality of scraper blocks 610 for pushing the residue into the slag discharge channel 32 are evenly distributed on the slag collecting slope 69 in the circumferential direction. The bottom edge flange 68 enables the bottom of the filter cover 5 to keep rotating concentrically. When the scraper block 610 rotates with the filter cover 5, the residue is pushed into the inlet end of the slag discharge channel 32 at the same time.

[0071] The extrusion screw 9 is a tapered structure that is narrow at the top and wide at the bottom. The wall of the pressed material crushing chamber 101 is provided with a plurality of vertically arranged crushing extrusion ribs 1011 corresponding to the extrusion screw 9, and the top of the chamber is provided with an axial hole 1012 that is positioned and matched with the top end of the screw shaft 92.

[0072] The drop cup 10 includes a cup cover 12 covering the juice collecting cup 3 and a hopper 13 arranged on the cup cover 12, wherein a discharge chamber 102, a guide channel 103 and a squeezed material crushing chamber 101 are formed in the hopper 13, wherein the discharge chamber 102 is coaxially arranged above the squeezed material crushing chamber 101, and a discharge port 1001 is correspondingly arranged at the top of the discharge chamber 102; the guide channel 103 is arranged beside the discharge chamber 102 and the squeezed material crushing chamber 101, and is connected to the discharge chamber 102 and the squeezed material crushing chamber 101 through the feed inlet 1002 and the drop port 1003 respectively.

[0073] In this embodiment, the filter inner cylinder 7 includes four ribs 71. The four ribs 71 enable the filter structure to have a better dynamic balance. Therefore, the number of ribs 71 is preferably four or a multiple of four or more, and the four ribs 71 can form a wider inward juice squeezing spiral groove 73, which can be suitable for a large-diameter juicer. When the filter structure is used in a small-diameter juicer, eight ribs 71 are preferably arranged on the filter inner cylinder 7.

[0074] 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 highly efficient squeeze juicer, comprising a base (1) with a motor (2) built in, a juice collecting chamber placed on the base (1), a juice squeezing assembly detachably arranged in the juice collecting chamber (3-5), and a drop cup (10) covering the juice collecting chamber (3-5), wherein the juice squeezing assembly is provided with a screw shaft (92), the lower part of which passes through the juice collecting chamber (3-5) and is connected to the motor shaft of the motor (2), and characterized in that: The juice squeezing assembly comprises a filter cover (5) and an extrusion screw (9); The filter housing (5) comprises a filter outer cylinder (6) and a filter inner cylinder (7), wherein a plurality of vertically arranged slits (61) are circumferentially provided on the cylinder wall of the filter outer cylinder (6); the filter inner cylinder (7) is detachably fitted tightly inside the filter outer cylinder (6), and the filter inner cylinder (7) comprises a plurality of ribs (71) inserted into the slits (61) from the inner side of the filter outer cylinder (6), and spiral ribs (72) connected to the inner side of the ribs (71) and used to support the plurality of ribs (71) to form a circumferential arrangement; When the filter inner cylinder (7) and the filter outer cylinder (6) are combined with each other, the inner side surface of the filter outer cylinder (6) abuts against or is in close proximity to the outer side surface of the spiral rib (72), and a filter gap (8) for separating juice and residue is formed between the rib (71) and the cut slit (61); The extrusion screw (9) is provided with a quick-release connection portion that cooperates with the filter cover (5), and the quick-release connection portion supports the extrusion screw (9) to be longitudinally placed above the filter cover (5) and to form an axial transmission connection with the filter cover (5). The outer surface of the extrusion screw (9) has at least one spiral cutting edge (93) extending therefrom, and an integrally continuous and connected inward and outward extrusion spiral groove (73, 94) is formed between the spiral rib (72) and the spiral cutting edge (93).

2. The high-efficiency squeeze juicer according to claim 1, characterized in that The plurality of ribs (71) include a plurality of wide ribs (711) and a plurality of narrow ribs (712); the plurality of wide ribs (711) are evenly spaced along the circumference of the filter inner cylinder (7); one or more narrow ribs (712) are provided between two connected wide ribs (711); and the width of the slit (61) of the filter outer cylinder (6) matches the corresponding wide rib (711) or narrow rib (712).

3. The high-efficiency squeeze juicer according to claim 1, characterized in that The bottom of the extrusion screw (9) is provided with a plurality of radially extending transmission support plates (91) in the circumferential direction, and the plurality of transmission support plates (91) form a quick-release connection portion. The top of the filter cover (5) is provided with a landing groove (51) adapted to accommodate the transmission support plate (91). The extrusion screw (9) is directly confined in the landing groove (51) by the transmission support plate (91) to form a transmission connection with the filter cover (5), and a squeezed material passage port (5-9) is formed between two adjacent transmission support plates (91) to communicate with the inward and outward extrusion spiral grooves (73, 94).

4. The high-efficiency squeeze juicer according to claim 3, characterized in that The filtering outer cylinder (6) further comprises an outer ring (63) integrally connected to the top of the cylinder wall (6a), the inner side surface of the outer ring (63) being provided with a ring step surface (64), and a plurality of outer grooves (65) being circumferentially provided on the ring step surface (64); The filter inner cylinder (7) further comprises an upper ring (74) integrally connected to the top of each rib (71); the upper ring (74) is tightly fitted on the top surface of the cylinder wall (6a); and an inner groove (75) is provided with the same width as the outer groove (65); the inner groove (75) and the outer groove (65) form a seating groove (51).

5. The high-efficiency squeeze juicer according to claim 1, characterized in that : Each spiral rib (72) is connected to at least half of the ribs (71) of the filter inner cylinder (7), and the head end of the spiral rib (72) spirally extends from the top end of a rib (71) to the bottom end of any rib (71); and the height of the spiral rib (72) protruding from the inner side surface of the rib (71) decreases linearly from the head end at the top to the tail end at the bottom.

6. The high-efficiency squeeze juicer according to claim 1, characterized in that A retaining wall (62) is provided at the bottom of the slit (61), and the retaining wall (62) is disposed radially outward of the bottom of the rib (71) and is disposed against or in close proximity to the outer side surface of the rib (71).

7. The high-efficiency squeeze juicer according to claim 6, characterized in that The retaining wall (62) is formed by extending upward from the bottom of the slit (61), and the extended height of the retaining wall (62) accounts for between 2% and 10% of the overall height of the slit (61).

8. The high-efficiency squeeze juicer according to claim 1, characterized in that The width of the rib (71) decreases linearly from top to bottom, and the corresponding width of the slit (61) matches the width of the rib (71), so that the filtering gap (8) between the rib (71) and the slit (61) maintains a uniform width or a similar width from top to bottom.

9. The high-efficiency squeeze juicer according to claim 4, characterized in that The radial thickness of the cylinder wall (6a) increases linearly from top to bottom, and the thickness increases only on the inner side of the cylinder wall (6a). The outer side of the rib (71) gradually changes from partially protruding outside the slit (61) to being retracted into the slit (61) due to the gradually thickening cylinder wall (6a), and the depth of the retraction increases as the rib (71) is retracted downward.

10. The high-efficiency squeeze juicer according to claim 1, characterized in that The invention also comprises a juice collecting cup (3) detachably arranged on the machine base, a juice collecting chamber (3-5) being formed between the juice collecting cup (3) and the filter cover (5); a fixed extrusion sleeve (4) having a plurality of extrusion ribs (401) arranged along the outer peripheral surface extending in the middle of the juice collecting chamber (3-5); an extrusion gap (4-5) being formed between the fixed extrusion sleeve (4) and the filter cover (5); a juice outlet channel (31) communicating with the juice collecting chamber (3-5) and a slag discharge channel (32) communicating with the extrusion gap (4-5) being arranged at the bottom of the juice collecting cup (3); and a pressed material crushing chamber (101) accommodating an extrusion screw (9) and a discharge port (1001) communicating with the pressed material crushing chamber (101) being arranged in the blanking cup (10).

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