A juicer using two-stage juice extraction
By setting the feed gap and secondary material separation zone in the two-stage juice pressing structure of the original juicer, the material is evenly dispersed into the second cutting and extrusion part, and the problems of low juice yield and high slag content caused by uneven materials in the prior art are solved, and a more efficient juice pressing effect and a more delicate taste are achieved.
Patent Information
- Application Number
- CN202510034271.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-04-08
AI Technical Summary
When the juice stroke is long, the existing two-stage juice structure has uneven materials, resulting in low juice yield, increased slag content, and it is easy to cause cracking of the machine or filter.
A juicer using two-stage juicer is designed. By setting a feed gap between the first cutting and extrusion part and the second cutting and extrusion part, a secondary material separation zone is formed to ensure that the material is evenly dispersed into the second cutting and extrusion part, thereby refining the cutting and extrusion process.
The juice yield rate is increased by about 5-10%, the pomace content in the juice is reduced by 20-30%, and the problem of cracking machine or filter net caused by uneven materials is solved.
Smart Images
Figure CN119769896A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a juicer, and more particularly to a juicer using two-stage juice extraction. Background Art
[0002] The juicer is developed on the basis of the conventional juicer. Its main working purpose is to turn the fruit into juice to improve the taste and facilitate drinking. However, the juicer has made a qualitative leap on the basis of the traditional cup blender and juicer. The low-speed spiral extrusion technology of the juicer squeezes out the juice slowly like squeezing a towel, without destroying the cell structure of the fruit, and the nutrition of the fruit is preserved. In addition, the low-speed juice discharge does not generate high heat, and also avoids the problem of heat oxidation of the juice.
[0003] The core components of the traditional juicer are the screw assembly and the filter assembly that cooperate with each other. In the screw assembly, the screw is the core component. In order to pursue a compact structure or consider issues such as volume, the existing screws are generally shorter, and the spiral extrusion ribs on the outer wall are a one-stage integral structure. In order to improve the juicing effect, a two-stage screw has appeared on the market, and the two sections of the juicing are connected end to end, and there is no gap in the middle. In actual use, it is found that the two-stage screw has a long juicing stroke, and the material is irregular when it enters the gap formed by the two adjacent extrusion cutting ribs at the upper end, with more or less. This causes its actual juice yield to be not much different from the traditional one-stage juicing structure, because the problem of uneven materials in the original one-stage pillow juice structure has not been solved. In addition, uneven materials will cause an increase in the amount of slag, because when there is too much material in the gap, the pressure increases, and the amount of slag squeezed through the filter hole increases. At the same time, due to the long juicing stroke, the gap at the lower part is finer, and the water in the material is almost squeezed out when it reaches the lower part, and the overall hardness is relatively high. Especially when juicing carrot juice, it is very easy for the machine to get stuck or the filter to burst. Summary of the invention
[0004] The purpose of the present invention is to provide a juicer with a novel structure and good juice extraction effect by using a two-stage juice extraction method. The juicer refines the cutting and extruding process by using two cutting and extruding parts with different extrusion gaps, thereby increasing the juice extraction rate and reducing the pomace content in the juice, making the taste more delicate.
[0005] The technical solution of the present invention is implemented as follows: a juicer using two-stage juice extraction, including a juice collecting cup, a screw is rotatably connected in the juice collecting cup, a feeding grinder that cooperates with each other is sleeved on the outer periphery of the screw, the screw and the feeding grinder cooperate to crush, squeeze, grind and filter fruits and vegetables, the screw includes a first cutting and squeezing part and a second cutting and squeezing part that are sequentially arranged on the circumference of the seat body from top to bottom, and a step portion that cooperates with the feeding grinder to position the screw is formed on the lower part of the first cutting and squeezing part or on the second cutting and squeezing part;
[0006] A feeding gap is formed between the first cutting and extruding part and the second cutting and extruding part. The feeding gap cooperates with the feeding grinder to form a secondary material distribution area. The fruits and vegetables that have been cut and extruded once are evenly dispersed into the second cutting and extruding part through the secondary material distribution area.
[0007] In the above-mentioned juicer using two-stage juice extraction, a rough extrusion and grinding gap is formed between the first cutting and extruding part and the corresponding feeding grinder, and the rough extrusion and grinding gap gradually narrows from top to bottom.
[0008] In the above-mentioned juicer using two-stage juice extraction, a fine extrusion and grinding gap is formed between the second cutting and extruding part and the corresponding feeding grinder, and the fine extrusion and grinding gap gradually narrows from top to bottom; the upper end of the fine extrusion and grinding gap is narrower than the upper end of the rough extrusion and grinding gap, and the lower end is narrower than the lower end of the rough extrusion and grinding gap.
[0009] In the above-mentioned juicer adopting two-stage juice extraction, the second cutting and extruding part is composed of a plurality of second ribs integrally formed on the outer wall of the base body and arranged obliquely along the circumferential direction or in a spiral shape along the circumferential direction;
[0010] A limiting portion is formed at the upper end of a plurality of second ribs, and the outer diameter of the limiting portion is greater than the maximum outer diameter of the first cutting and extrusion portion; the limiting portions at the upper end of each second rib cooperate to form an annular step portion; an annular step that cooperates with the step portion is formed in the feeding grinder, and the screw is rotated and fixed in the feeding grinder by pressing the step portion down through the annular step.
[0011] In the above-mentioned juicer using two-stage juice extraction, the first cutting and extruding part is composed of a plurality of first ribs integrally formed on the outer wall of the base body and spirally shaped along the circumferential direction; the first ribs are composed of a plurality of extrusion bars with gaps arranged therebetween.
[0012] In the above-mentioned juicer using two-stage juice extraction, the number of the second ribs is equal to or greater than the number of the first ribs.
[0013] In the above-mentioned juicer adopting two-stage juice extraction, a pre-crushing blade head with a spiral upward is arranged at the upper end of the base body; and a plurality of auxiliary cutting edges are integrally formed along a spiral track on the outer side surface of the pre-crushing blade head.
[0014] In the above-mentioned juicer using two-stage juice extraction, the vertical projection of the outer contour of the auxiliary cutting edge 10 located at the front is entirely or partially located outside the vertical projection of the outer contour of the first cutting and extruding portion 5 .
[0015] In the above-mentioned juicer using a two-stage juice extraction, the feed grinder includes a feed bin, and a pre-crushing section in the shape of an inverted truncated cone and cooperating with the pre-crushing cutter head and the auxiliary cutting edge is integrally formed at the lower end of the feed bin, and a first filter section and a second filter section in the shape of a step are integrally formed at the lower end of the pre-crushing section, which respectively cooperate with the first cutting and extruding section and the second cutting and extruding section; the annular step is formed between the first filter section and the second filter section.
[0016] In the above-mentioned juicer using two-stage juice extraction, a slag outlet is provided at the lower part of the juice collecting cup, and an integrated slag outlet pipe which is rotatably connected to the outer surface of the juice collecting cup and is communicated with the slag outlet is rotatably connected; when cleaning, the slag outlet pipe rotates relative to the juice collecting cup and is separated from the slag outlet.
[0017] In the above-mentioned juicer using two-stage juice extraction, the outer wall of the slag discharge pipe is provided with an elastic fastener, and a buckle seat matching the elastic fastener is provided on the juice collecting cup; the slag discharge pipe is fixed on the juice collecting cup through the elastic fastener and the buckle seat.
[0018] In the above-mentioned juicer using two-stage juice extraction, the slag outlet is located at the bottom edge of the juice collecting cup, and the slag outlet pipe is rotatably connected to the outer bottom of the juice collecting cup.
[0019] In the above-mentioned juicer using a two-stage juice extraction, a ring body is integrally formed at the lower part of the juice collecting cup, the bottom surface of the juice collecting cup where the slag discharge port is located is located on the inner upper side of the ring body, and a clearance notch adapted to the slag discharge pipe is provided on the ring body; when the slag discharge pipe and the juice collecting cup are assembled and fixed, the lower surface of the outer wall of the slag discharge pipe and the lower end surface of the ring body are on the same plane.
[0020] In the above-mentioned juicer using a two-stage juice extraction, the slag discharge pipe is a cylindrical structure with a single-side opening, and a slag inlet is formed at the upper part of the bottom of the slag discharge pipe, and the edge of the slag inlet is formed by a horizontal part and a vertical part that are perpendicular to each other and connected end to end; when the slag discharge pipe is assembled and fixed to the juice collecting cup, the horizontal part contacts the outer bottom of the juice collecting cup, and the vertical part contacts the side wall of the juice collecting cup.
[0021] In the above-mentioned juicer using two-stage juice extraction, a silicone baffle is provided at the horizontal portion. When the slag discharge pipe and the juice collecting cup are assembled and fixed, the silicone baffle seals the slag discharge port; when the slag is discharged, the fruit and vegetable slag pushes open the silicone baffle and enters the slag discharge pipe.
[0022] In the above-mentioned juicer using two-stage juice extraction, a connecting seat is provided at the outer bottom of the juice collecting cup, a rotating support is connected to the connecting seat, and the slag discharge pipe is rotatably connected to the rotating support.
[0023] After the present invention adopts the above structure, the original one-stage juicing structure is first designed into a two-stage juicing structure composed of a first cutting and squeezing part and a second cutting and squeezing part. After the fruits and vegetables are cut and squeezed by the first cutting and squeezing part, they re-enter the second cutting and squeezing part for cutting and squeezing, which can make the fruit and vegetable juice extraction more thorough, with a higher juice yield and a lower residue content in the juice. Furthermore, a feed gap is set between the first cutting and squeezing part and the second cutting and squeezing part, so that the feed gap cooperates with the feeding grinder to form a secondary material distribution area, and the fruits and vegetables that have been cut and squeezed once are evenly dispersed into the second cutting and squeezing part through the secondary material distribution area, so that the materials entering the second cutting and squeezing part are more uniform and the juicing effect is better. According to experiments, by setting the feed gap, the juice yield is increased by 5-10%, and the residue content is reduced by 20-30%. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The present invention will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.
[0025] Figure 1 It is a schematic diagram of the decomposed structure of the present invention;
[0026] Figure 2 It is a schematic diagram of the assembly structure of the present invention;
[0027] Figure 3 It is a schematic diagram of the structure when the slag discharge pipe of the present invention is in an open state;
[0028] Figure 4 It is a structural schematic diagram of the slag discharge pipe of the present invention when it is in an assembled state;
[0029] Figure 5 It is a structural schematic diagram of the screw of the present invention;
[0030] Figure 6 It is a three-dimensional structural schematic diagram of the screw of the present invention.
[0031] In the figure: 1, juice collecting cup; 1a, slag outlet; 1b, slag outlet pipe; 1c, elastic fastener; 1d, buckle seat; 1e, clearance gap; 1f, horizontal part; 1g, vertical part; 1h, silicone baffle; 1i, connecting seat; 1j, rotating support; 2, screw; 3, feeding grinder; 3a, annular step; 3b, feed bin; 3c, pre-crushing section; 3d, first filter part; 3e, second filter part; 4, seat body; 5, first cutting and extruding part; 5a, extrusion strip; 6, second cutting and extruding part; 6a, material guide slope; 7, step part; 8, feed gap; 9, pre-crushing cutter head; 10, auxiliary cutting edge. DETAILED DESCRIPTION
[0032] See also Figures 1 to 6As shown, a juicer using two-stage juice extraction of the present invention includes a juice collecting cup 1, in which a screw 2 is rotatably connected, and a feeding grinder 3 that cooperates with each other is sleeved on the outer periphery of the screw 2. The screw 2 and the feeding grinder 3 cooperate to crush, squeeze, grind and filter fruits and vegetables. The screw 2 includes a first cutting and extruding portion 5 and a second cutting and extruding portion 6 that are sequentially arranged from top to bottom in the circumference of a seat body 4. A step portion 7 that cooperates with the feeding grinder 3 to position the screw 2 is formed on the lower part of the first cutting and extruding portion 5 or the second cutting and extruding portion 6. Designing the original one-stage juicing structure into a two-stage juicing can make the juicing process more refined and more flexible. At the same time, the cutting and extruding portion is cleverly used to form the step portion, and there is no need to separately form an annular step at the bottom of the seat body, making the structure more compact and clever. Only the upper structure is illustrated in the accompanying drawings, and the lower base part is the same as the prior art.
[0033] See also Figure 3 and Figure 4 As shown, in this embodiment, in order to facilitate the cleaning of various parts of the juice collecting cup, a slag outlet 1a is provided at the lower part of the juice collecting cup 1, and an integrated slag outlet 1b which is in communication with the slag outlet 1a is rotatably connected to the outer surface of the juice collecting cup 1; during cleaning, the slag outlet 1b rotates relative to the juice collecting cup 1 and separates from the slag outlet 1a. Since the fruit and vegetable residues are relatively dry, even if the contact between the slag outlet pipe and the outer wall of the cup body is not sealed, it does not affect the slag discharge. Therefore, based on the above concept, any structure that can realize the slag outlet pipe being rotatable and thus facilitate the cleaning of the slag outlet and the slag outlet is acceptable.
[0034] Further preferably, the outer wall of the slag discharge pipe 1b is provided with an elastic fastener 1c, and a buckle seat 1d matched with the elastic fastener 1c is provided on the juice collecting cup 1; the slag discharge pipe 1b is fixed to the juice collecting cup 1 by the elastic fastener 1c and the buckle seat 1d. In this embodiment, the elastic fastener is in the form of a thin sheet, and a receiving groove adapted to the elastic fastener is provided on the outer wall of the cup body. When the elastic fastener is buckled with the buckle seat, the elastic fastener is located in the receiving groove, making the overall appearance beautiful and tidy. At the same time, the slag discharge port is located at one end of the slag inlet of the slag discharge pipe, and the fruit and vegetable residues can enter the slag discharge pipe through the slag discharge port. Of course, the fixing method of the slag discharge pipe and the juice collecting cup can also adopt other conventional detachable connections in the field, such as detachable plug-in, which is an equivalent alternative that can be easily thought of by technicians in this field.
[0035] Further preferably, the slag outlet 1a is located at the bottom edge of the juice collecting cup 1, and the slag outlet pipe 1b is rotatably connected to the outer bottom of the juice collecting cup 1. The slag outlet is located at the bottom, which is conducive to the discharge of fruit and vegetable residues and reduces the residual fruit and vegetable residues in the cup body. Of course, based on the concept of the present invention, the slag outlet can also be set on the side wall of the cup body, which is also easy for those skilled in the art to think of and belongs to an equivalent alternative solution.
[0036] Further preferably, the lower part of the juice collecting cup 1 is integrally formed with a ring body, the bottom surface of the juice collecting cup 1 where the slag outlet 1a is located is located on the upper inner side of the ring body, and a clearance notch 1e adapted to the slag outlet pipe 1b is provided on the ring body;
[0037] When the slag discharge pipe 1b is assembled and fixed with the juice collecting cup 1, the lower surface of the outer wall of the slag discharge pipe 1b and the lower end surface of the ring body are in the same plane, so that when the juice collecting cup is docked with the base, the lower end of the slag discharge pipe is against the upper end surface of the base, which can make the slag discharge pipe stable and not move. Therefore, even without elastic fasteners, the slag discharge pipe can remain motionless during operation. The setting of the ring body is convenient for the installation of the bottom-mounted slag discharge pipe, and can hide part of the slag discharge pipe, and can also facilitate the assembly of the cup body and the lower base. Of course, the ring body is not a necessary structure. If the slag discharge pipe is installed on the side, it is also possible to cancel the ring body.
[0038] In this embodiment, the slag discharge pipe 1b is a cylindrical structure with one side open, a slag inlet is formed at the upper part of the bottom of the slag discharge pipe 1b, and the edge of the slag inlet is formed by a horizontal part 1f and a vertical part 1g connected end to end perpendicular to each other.
[0039] When the slag discharge pipe 1b is assembled and fixed with the juice collecting cup 1, the horizontal portion 1f contacts the outer bottom of the juice collecting cup 1, and the vertical portion 1g contacts the side wall of the juice collecting cup 1. With this structure, fruit and vegetable slag falls into the slag discharge pipe and moves forward quickly, quickly leaving the contact portion between the slag discharge pipe and the juice collecting cup, reducing the possibility of slag leakage.
[0040] A silicone baffle 1h is provided at the horizontal portion 1f. When the slag discharge pipe 1b is assembled and fixed with the juice collecting cup 1, the silicone baffle 1h seals the slag discharge port; when the slag is discharged, the fruit and vegetable slag pushes the silicone baffle 1h and enters the slag discharge pipe 1b. The silicone baffle can be fixed on the end surface of the horizontal portion in a conventional manner in the art, such as by snapping, screw connection, etc. Of course, the silicone baffle can also be fixed on the outer bottom of the cup body on the side of the slag discharge port, and its function is the same.
[0041] In order to facilitate the installation of the slag discharge pipe, a connecting seat 1i is provided at the outer bottom of the juice collecting cup 1, and a rotating support 1j is connected to the connecting seat 1i. The slag discharge pipe 1b is rotatably connected to the rotating support 1j.
[0042] Preferably, a rough extrusion and grinding gap is formed between the first cutting and extruding part 5 and the corresponding feeding grinder 3, and the rough extrusion and grinding gap gradually narrows from top to bottom. At the same time, a fine extrusion and grinding gap is formed between the second cutting and extruding part 6 and the corresponding feeding grinder 3, and the fine extrusion and grinding gap gradually narrows from top to bottom; the upper end of the fine extrusion and grinding gap is narrower than the upper end of the rough extrusion and grinding gap, and the lower end is narrower than the lower end of the rough extrusion and grinding gap. The two-stage and gradually shrinking gap can effectively squeeze and juice the fruits and vegetables. Experiments have found that compared with the existing two-stage juicing, the juice yield is increased by about 5-10%, and the residue content of the juice is reduced by 20-30%.
[0043] Further preferably, a feeding gap 8 is formed between the first cutting and squeezing part 5 and the second cutting and squeezing part 6, and the feeding gap 8 cooperates with the feeding grinder 3 to form a secondary material distribution area, and the fruits and vegetables that have been cut and squeezed once are evenly dispersed into the second cutting and squeezing part 6 through the secondary material distribution area. The secondary material distribution area allows the fruit and vegetable pieces that have passed through the first cutting and squeezing part to converge there and evenly enter the second cutting and squeezing part, so that the juicing effect is better.
[0044] In this embodiment, the second cutting and extruding portion 6 is composed of a plurality of second ribs integrally formed on the outer wall of the seat body 4 and arranged obliquely in the circumferential direction or spirally arranged in the circumferential direction as a whole. At the same time, the second ribs can be of the same size or of different sizes and shapes. In this embodiment, the second ribs are composed of larger and longer thick ribs and thinner and shorter thin ribs. The thick and thin ribs are arranged alternately and the upper end of the thin ribs is located on the lower side of the upper end of the thick ribs. In this structure, the extrusion gap between two adjacent thick ribs will be divided into two narrower extrusion gaps by the thin ribs. Combined with the feed gap, the flow is diverted step by step, which can maximize the uniform extrusion of the material and make the juice extraction efficiency higher.
[0045] A limiting portion is formed at the upper end of a plurality of second ribs, and the outer diameter of the limiting portion is greater than the maximum outer diameter of the first cutting and extruding portion 5; the limiting portions at the upper end of each second rib cooperate to form an annular step portion 7; an annular step 3a that cooperates with the step portion 7 is formed in the feeding grinder 3, and the screw 2 is rotatably fixed in the feeding grinder 3 by pressing down the step portion 7 through the annular step 3a.
[0046] In this embodiment, the limiting portion is the upper end plane of a plurality of second ribs. Of course, the plane may also be a slope or other shapes, as long as an annular step structure can be formed between the limiting portion and the first cutting and extruding portion, so that the external feeding grinder can press the step to achieve the positioning of the screw.
[0047] Further preferably, the left and right sides of the lower part of each second rib are respectively integrally formed with a material guiding slope 6a. The material guiding slope can squeeze the fruit and vegetable residue downward, which can improve the residue discharge efficiency.
[0048] Further preferably, the first cutting and extruding portion 5 is composed of a plurality of first ribs integrally formed on the outer wall of the seat body 4 and spirally shaped along the circumferential direction; the first ribs are composed of a plurality of extrusion bars 5a arranged at gaps. By segmenting the first ribs, the material entering each extrusion gap (i.e., the gap formed by two adjacent first ribs) can be diverted at the gap between two adjacent extrusion bars, thereby avoiding damage or jamming of the extrusion assembly due to excessive material in the extrusion gap. Diversion can also make full use of each extrusion gap, avoiding poor extrusion effect due to too little material in some extrusion gaps, thereby improving the overall juicing level.
[0049] In this embodiment, the number of the second ribs is equal to or greater than the number of the first ribs. Preferably, the number of the second ribs is greater than the number of the first ribs, so that the extrusion gap can be narrowed, thereby further squeezing the fruits and vegetables to achieve the purpose of finely squeezing juice and making the juicing effect better.
[0050] Preferably, a pre-crushing blade 9 with a spiral upward is provided at the upper end of the seat body 4; and a plurality of auxiliary cutting edges 10 are integrally formed along a spiral track on the outer side of the pre-crushing blade 9. The pre-crushing blade pre-cuts and crushes large-sized fruits and vegetables, especially intact fruits and vegetables, and then the pre-cut and crushed fruits and vegetables are cut and crushed again by the auxiliary cutting edges, thereby improving the crushing effect.
[0051] Further preferably, the vertical projection of the outer contour of the auxiliary cutting edge 10 located at the front is entirely or partially located outside the vertical projection of the outer contour of the first cutting and extruding portion 5. The purpose of this design is to make the pre-crushing effect of the auxiliary cutting edge better. The silo portion and the filter portion are connected by a transition portion in the shape of an inverted truncated cone, and this section is the pre-cutting portion. Due to its structure of being larger at the top and smaller at the bottom, efficient pre-slitting cannot be achieved by relying solely on a spiral or inclined pre-crushing cutter head. This is because the pre-crushing cutter head has only a single cutter head, and a large gap is formed between the top cutter head and the lower first cutting and extruding portion. The addition of an auxiliary cutting edge can just pre-slit the larger fruit and vegetable particles that enter the larger gap again, thereby improving the pre-crushing effect.
[0052] In this embodiment, the feeding grinder 3 includes a feeding bin 3b, and a pre-crushing section 3c in the shape of an inverted truncated cone and matched with the pre-crushing cutter head 9 and the auxiliary cutting edge 10 is integrally formed at the lower end of the feeding bin 3b, and a first filter section 3d and a second filter section 3e in the shape of a step are integrally formed at the lower end of the pre-crushing section 3c, which respectively cooperate with the first cutting and extruding section 5 and the second cutting and extruding section 6; the annular step 3a is formed between the first filter section 3d and the second filter section 3e.
[0053] When in use, the screw rod is connected to the motor output shaft on the base, and the bottom of the juice collecting cup is fixed on the base. This connection method is the same as the prior art.
[0054] Experimental example
[0055] The existing two-stage juice extractor and the two-stage juice extractor of the present invention were prepared, and comparative experiments were conducted on pears, oranges, grapes (blackcurrants), carrots, celery and apples, respectively, and all fruits were purchased from the same batch. The mesh number of the filter used for the residue content was uniformly 40 meshes. The test results are shown in Table 1.
[0056] Table 1 Test results
[0057]
[0058] It can be seen from Table 1 that the harder the food is, the better the juice yield of the present invention is than that of the juicer in the prior art.
[0059] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the description of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.
Claims
1. A juicer using two-stage juice extraction, comprising a juice collecting cup (1), wherein a screw (2) is rotatably connected inside the juice collecting cup (1), and a feeding grinder (3) is provided on the outer periphery of the screw (2) to cooperate with each other, wherein the screw (2) and the feeding grinder (3) cooperate to crush, squeeze, grind and filter fruits and vegetables, and wherein: The screw (2) comprises a first cutting and extruding portion (5) and a second cutting and extruding portion (6) which are arranged in sequence from top to bottom in the circumferential direction of the seat body (4); a step portion (7) is integrally formed on the upper portion of the second cutting and extruding portion (6) and is matched with the feeding grinder (3) to position the screw (2); A feeding gap (8) is formed between the first cutting and extruding portion (5) and the second cutting and extruding portion (6), and the feeding gap (8) cooperates with the feeding grinder (3) to form a secondary material distribution area, and the fruits and vegetables that have been cut and extruded once are evenly dispersed into the second cutting and extruding portion (6) through the secondary material distribution area.
2. A juicer using two-stage juice extraction according to claim 1, characterized in that: A rough extrusion and grinding gap is formed between the first cutting and extrusion part (5) and the corresponding feeding grinder (3), and the rough extrusion and grinding gap gradually narrows from top to bottom; A fine extrusion and grinding gap is formed between the second cutting and extruding portion (6) and the corresponding feeding grinder (3), and the fine extrusion and grinding gap gradually narrows from top to bottom; the upper end of the fine extrusion and grinding gap is narrower than the upper end of the rough extrusion and grinding gap, and the lower end is narrower than the lower end of the rough extrusion and grinding gap.
3. The juicer using two-stage juice extraction according to claim 1, characterized in that: The second cutting and extruding portion (6) is composed of a plurality of second ribs integrally formed on the outer wall of the seat body (4) and arranged obliquely along the circumferential direction or in a spiral shape along the circumferential direction; A limiting portion is formed at the upper ends of the plurality of second ribs, and the outer diameter of the limiting portion is greater than the maximum outer diameter of the first cutting and extruding portion (5); the limiting portions at the upper ends of the second ribs cooperate to form an annular step portion (7); an annular step (3a) that cooperates with the step portion (7) is formed in the feeding grinder (3), and the screw (2) is rotated and fixed in the feeding grinder (3) by pressing down the step portion (7) through the annular step (3a).
4. A juicer using two-stage juice extraction according to claim 3, characterized in that: The first cutting and extruding portion (5) is composed of a plurality of first ribs integrally formed on the outer wall of the seat body (4) and having a spiral shape along the circumferential direction; the first ribs are composed of a plurality of extrusion bars (5a) arranged at intervals; the number of the second ribs is equal to or greater than the number of the first ribs.
5. The juicer using two-stage juice extraction according to claim 4, characterized in that: The upper end of the seat body (4) is provided with a pre-crushing blade (9) which spirals upward; a plurality of auxiliary cutting edges (10) are integrally formed on the outer side surface of the pre-crushing blade (9) along a spiral track; The vertical projection of the outer contour of the auxiliary cutting edge (10) located at the front is entirely or partially located outside the vertical projection of the outer contour of the first cutting and pressing portion (5).
6. A juicer using two-stage juice extraction according to claim 5, characterized in that: The feed grinder (3) comprises a feed bin (3b), a pre-crushing section (3c) in the shape of an inverted truncated cone and matched with a pre-crushing cutter head (9) and an auxiliary cutting edge (10) is integrally formed at the lower end of the feed bin (3b), and a first filter section (3d) and a second filter section (3e) in the shape of a step are integrally formed at the lower end of the pre-crushing section (3c) and are matched with a first cutting and extruding section (5) and a second cutting and extruding section (6) respectively; the annular step (3a) is formed between the first filter section (3d) and the second filter section (3e).
7. The juicer using two-stage juice extraction according to claim 1, characterized in that: The juice collecting cup (1) is provided with a slag outlet (1a) at the bottom thereof, and an integrated slag outlet pipe (1b) which is rotatably connected to the outer surface of the juice collecting cup (1) and is in communication with the slag outlet (1a); during cleaning, the slag outlet pipe (1b) rotates relative to the juice collecting cup (1) and is separated from the slag outlet (1a).
8. The juicer using two-stage juice extraction according to claim 1, characterized in that: The outer wall of the slag discharge pipe (1b) is provided with an elastic fastener (1c), and a buckle seat (1d) matching the elastic fastener (1c) is provided on the juice collecting cup (1); the slag discharge pipe (1b) is fixed on the juice collecting cup (1) by the elastic fastener (1c) and the buckle seat (1d).
9. The juicer using two-stage juice extraction according to claim 1, characterized in that: The slag discharge port (1a) is located at the bottom edge of the juice collecting cup (1), and the slag discharge pipe (1b) is rotatably connected to the outer bottom of the juice collecting cup (1).
10. The juicer using two-stage juice extraction according to claim 1, characterized in that: The lower part of the juice collecting cup (1) is integrally formed with a ring body, the bottom surface of the juice collecting cup (1) where the slag discharge port (1a) is located is located on the upper inner side of the ring body, and a clearance notch (1e) adapted to the slag discharge pipe (1b) is provided on the ring body; When the slag discharge pipe (1b) and the juice collecting cup (1) are assembled and fixed, the lower surface of the outer wall of the slag discharge pipe (1b) and the lower end surface of the ring body are on the same plane.
11. A juicer using two-stage juice extraction according to any one of claims 7 to 10, characterized in that: The slag discharge pipe (1b) is a cylindrical structure with one side open, and a slag inlet is formed at the upper part of the bottom of the slag discharge pipe (1b), and the edge of the slag inlet is formed by a horizontal part (1f) and a vertical part (1g) that are perpendicular to each other and connected end to end; When the slag discharge pipe (1b) is assembled and fixed to the juice collecting cup (1), the horizontal portion (1f) contacts the outer bottom of the juice collecting cup (1), and the vertical portion (1g) contacts the side wall of the juice collecting cup (1).
12. A juicer using two-stage juice extraction according to claim 11, characterized in that: A silicone baffle (1h) is provided at the horizontal portion (1f); when the slag discharge pipe (1b) and the juice collecting cup (1) are assembled and fixed, the silicone baffle (1h) seals the slag discharge port; when the slag is discharged, the fruit and vegetable slag pushes the silicone baffle (1h) and enters the slag discharge pipe (1b).
13. The juicer using two-stage juice extraction according to claim 9, characterized in that: The outer bottom of the juice collecting cup (1) is provided with a connecting seat (1i), a rotating support (1j) is connected to the connecting seat (1i), and the slag discharge pipe (1b) is rotatably connected to the rotating support (1j).