A two-stage juicing screw and a juicer using the same

Abstract

This utility model discloses a two-stage juicing screw and a juicer using the screw; belonging to the technical field of juicers; its key technical features include a base, the base comprising a first cutting and extruding section and a second cutting and extruding section arranged sequentially from top to bottom; the outer diameter of the first cutting and extruding section is smaller than the outer diameter of the second cutting and extruding section, and the first and second cutting and extruding sections have a smooth transition; a pre-cutting blade is integrally formed at the upper end of the first cutting and extruding section, and several spiral cutting and extruding ribs are integrally formed on the outer walls of the first and second cutting and extruding sections, one of which extends upward along the outer wall of the pre-cutting blade to the upper end near the end; this utility model aims to provide a two-stage juicing screw with a compact structure, good juicing effect, and high efficiency, and a juicer using the screw; used for juicing.

Description

Technical Field

[0001] This utility model relates to a screw, and more specifically, to a two-stage juicing screw. This utility model also relates to a juicer using this screw. Background Technology

[0002] Slow juicers evolved from conventional juicers, their primary purpose being to turn fruit into juice to improve taste and convenience. However, slow juicers represent a significant leap forward from traditional cup blenders and slow juicers. Their low-speed spiral extrusion technology squeezes the juice out slowly, like squeezing a towel, without damaging the fruit's cell structure, thus preserving its nutrients. Furthermore, the low-speed juicing process avoids generating high heat, preventing the juice from oxidizing due to heat.

[0003] The core components of a traditional juicer are the screw assembly and the filter assembly, which work together seamlessly. Within the screw assembly, the screw is the central component. To achieve a compact structure or address size considerations, existing screws are generally short, and their spiral extrusion ribs are a single, integral structure. To improve juicing efficiency, two-section screws have emerged on the market. However, in practical use, it has been found that in current two-section screws, the outer diameter of the upper section is significantly smaller than that of the lower section. Correspondingly, the inner diameter of the matching extrusion and filter section must also be made smaller, which reduces the material feeding space and affects juicing efficiency. Utility Model Content

[0004] The primary objective of this invention is to address the shortcomings of the prior art by providing a two-stage juicing screw that is compact, produces good juicing results, and is highly efficient. The secondary objective of this invention is to provide a juicer employing the aforementioned screw.

[0005] The preceding technical solution of this utility model is implemented as follows: a two-section juicing screw includes a base body, the base body including a first cutting and extruding section and a second cutting and extruding section arranged sequentially from top to bottom; the outer diameter of the first cutting and extruding section is smaller than the outer diameter of the second cutting and extruding section and the first cutting and extruding section and the second cutting and extruding section have a smooth transition.

[0006] A pre-cutting head is integrally formed at the upper end of the first cutting and extrusion section. Several spiral cutting and extrusion ribs are integrally formed on the outer walls of the first and second cutting and extrusion sections. The upper end of one of the cutting and extrusion ribs extends upward along the outer wall of the pre-cutting head to the upper end near the end.

[0007] In the aforementioned two-stage juicing screw, the number of cutting and extruding ribs is 3-5, and each cutting and extruding rib is distributed at intervals along the axial direction of the base body.

[0008] In the aforementioned two-stage juicing screw, the number of cutting and extruding ribs is three.

[0009] In the aforementioned two-stage juicing screw, the lower part of the second cutting and extrusion section is provided with several guide blocks, and the lower ends of each guide block and some cutting and extrusion ribs are evenly distributed in the lower part of the second cutting and extrusion section.

[0010] In the aforementioned two-stage juicing screw, a number of limiting blocks are evenly distributed circumferentially on the lower outer wall of the seat, and a slag discharge channel is formed between adjacent limiting blocks.

[0011] In the aforementioned two-stage juicing screw, the outer diameter of the cutting and extruding ribs is a frustum shape with a smaller upper diameter and a larger lower diameter.

[0012] The latter technical solution of this utility model is implemented as follows: a juicer includes a base, a juice collection cup is provided on the base, a feeding grinder is detachably connected inside the juice collection cup, and a screw as described in any of the former technical solutions of this utility model is sandwiched between the feeding grinder and the juice collection cup and is connected and linked to the power output shaft on the base.

[0013] In the aforementioned juicer, the feeding grinder includes a feed hopper and a grinding filter connected to each other. An overflow filter hole is provided near the upper end of the grinding filter. A sealing block that cooperates with the overflow filter hole is provided on the inner wall of the juice collection cup. The sealing block and the overflow filter hole cooperate to form an overflow gap. The grinding filter and the sealing block cooperate to form a squeezing filter cavity that cooperates with the screw.

[0014] In the juicer described above, the hopper and the grinding filter are integrally formed.

[0015] By employing the aforementioned structure, this invention utilizes integrated cutting and extrusion ribs on the outer walls of the first and second cutting and extrusion sections. This increases the overall height of the base by approximately one-third compared to conventional screws, while maintaining similar upper and lower outer diameters. This results in a correspondingly larger inner diameter of the upper part of the mating extrusion and filtering section, allowing for the intake of more and larger materials, thus improving juicing efficiency. Furthermore, with the outer diameters of the cutting and extrusion ribs being consistent and the difference not being significant, and the outer diameter of the first cutting and extrusion section being smaller than that of the second, the height of the cutting and extrusion ribs in the first section is greater than that in the second. This means the material channel in the first section is deeper than that in the second, allowing for the simultaneous intake of more material, further enhancing juicing efficiency. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.

[0017] Figure 1This is a schematic diagram of the screw structure of this utility model.

[0018] Figure 2 yes Figure 1 A cross-sectional structural diagram.

[0019] Figure 3 This is a three-dimensional structural diagram of the screw of this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the juicer of this utility model.

[0021] Figure 5 yes Figure 4 A cross-sectional structural diagram.

[0022] Figure 6 yes Figure 5 A magnified view of a portion of point A in the middle.

[0023] In the diagram: 1. Base; 2. First cutting and extrusion section; 3. Second cutting and extrusion section; 4. Pre-cutting blade; 5. Cutting and extrusion ribs; 6. Slag guide block; 7. Limiting block; 8. Base; 9. Juice collection cup; 10. Feeding grinder; 11. Hopper; 12. Grinding filter; 13. Overflow filter hole; 14. Sealing block. Detailed Implementation

[0024] See Figures 1 to 3 As shown, a two-section juicing screw of the present invention includes a base 1, wherein the base 1 includes a first cutting and extruding section 2 and a second cutting and extruding section 3 arranged sequentially from top to bottom; the outer diameter of the first cutting and extruding section 2 is smaller than the outer diameter of the second cutting and extruding section 3 and there is a smooth transition between the first cutting and extruding section 2 and the second cutting and extruding section 3.

[0025] A pre-cutting head 4 is integrally formed on the upper end of the first cutting and extrusion section 2. Several spiral cutting and extrusion ribs 5 are integrally formed on the outer wall of the first cutting and extrusion section 2 and the second cutting and extrusion section 3. The upper end of one of the cutting and extrusion ribs 5 extends upward along the outer wall of the pre-cutting head 4 to the upper end near the end.

[0026] The single-stage cutting and extrusion ribs allow material to smoothly and quickly enter the second cutting and extrusion stage from the first, improving juicing efficiency. Simultaneously, the outer diameter of the cutting and extrusion ribs in the first and second cutting and extrusion stages does not differ significantly, forming an overall frustum shape that is smaller at the top and larger at the bottom. This structure is because it is a downward-pressing fixed screw; when separating from the feed grinder, it needs to detach from the bottom rather than being pulled upwards. Therefore, the smaller top and larger bottom shape facilitates its detachment.

[0027] When the outer diameter of the first cutting and extrusion section is smaller than that of the second cutting and extrusion section, the height of the cutting and extrusion ribs in the first section will be higher than that in the second section. This means the material channel in the first section is deeper than that in the second section, allowing more material to enter simultaneously, thus further improving juicing efficiency.

[0028] Preferably, the number of cutting and extruding ribs 5 is 3-5, and each cutting and extruding rib 5 is distributed at intervals along the axial direction of the base body 1. In this example, the number of cutting and extruding ribs 5 is 3.

[0029] In order to improve the efficiency of slag removal, a number of slag guide blocks 6 are distributed in the lower part of the second cutting and extrusion section 3. The lower ends of each slag guide block 6 and some cutting and extrusion ribs 5 are evenly distributed in the lower part of the second cutting and extrusion section 3.

[0030] More preferably, the lower outer wall of the seat 1 is provided with a plurality of limiting blocks 7 evenly distributed circumferentially, forming a slag discharge channel between adjacent limiting blocks 7. In this practical example, the slag guide block located at the lower part of the second cutting and extrusion section and the cutting and extrusion ribs extending to the lower part of the second cutting and extrusion section correspond one-to-one with each limiting block, which is more conducive to slag discharge.

[0031] See Figures 4 to 6 As shown, a juicer of this utility model includes a base 8, a juice collection cup 9 is provided on the base 8, a feeding grinder 10 is detachably connected inside the juice collection cup 9, and a screw as described above is sandwiched between the feeding grinder 10 and the juice collection cup 9 and is connected and linked to the power output shaft on the base 8.

[0032] Preferably, the feeding grinder 10 includes a hopper 11 and a grinding filter 12 connected to each other. In this embodiment, the hopper 11 and the grinding filter 12 are integrally formed.

[0033] An overflow filter hole 13 is provided at the upper near end of the grinding filter 12, and a sealing block 14 that cooperates with the overflow filter hole 13 is provided on the inner wall of the juice collection cup 9. The sealing block 14 and the overflow filter hole 13 cooperate to form an overflow gap; the grinding filter 12 and the sealing block 14 cooperate to form a compression filter cavity that cooperates with the screw.

[0034] The feeding gap allows the material that has passed through the first cutting and extruding section to converge there and then enter the second cutting and extruding section evenly, resulting in better juicing. In contrast, conventional single-stage juicing suffers from uneven material distribution due to the randomness of material entry. Areas with less material affect the extrusion effect, while areas with more material are prone to damage to the juicing components or machine jamming.

[0035] During operation, connect the juice collection cup to the base, and then install the screw and feeding grinder in sequence to perform the juicing operation.

[0036] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.

Claims

1. A two-stage juicing screw, comprising a base (1), characterized in that, The seat (1) includes a first cutting and extruding section (2) and a second cutting and extruding section (3) arranged sequentially from top to bottom; the outer diameter of the first cutting and extruding section (2) is smaller than the outer diameter of the second cutting and extruding section (3) and there is a smooth transition between the first cutting and extruding section (2) and the second cutting and extruding section (3); A pre-cutting head (4) is integrally formed on the upper end of the first cutting extrusion section (2). Several spiral cutting extrusion ribs (5) are integrally formed on the outer wall of the first cutting extrusion section (2) and the second cutting extrusion section (3). One of the cutting extrusion ribs (5) extends upward along the outer wall of the pre-cutting head (4) to the upper end near the end.

2. The two-stage juicing screw according to claim 1, characterized in that, The number of cutting and extruding ribs (5) is 3-5, and each cutting and extruding rib (5) is distributed at intervals along the axial direction of the seat body (1).

3. A two-stage juicing screw according to claim 2, characterized in that, The number of the cutting and extruding ribs (5) is 3.

4. A two-stage juicing screw according to claim 1, characterized in that, The lower part of the second cutting and extrusion section (3) is provided with several slag guide blocks (6), and the lower ends of each slag guide block (6) and some cutting and extrusion ribs (5) are evenly distributed in the lower part of the second cutting and extrusion section (3).

5. A two-stage juicing screw according to claim 1, characterized in that, The lower outer wall of the seat (1) is provided with several limiting blocks (7) evenly distributed around the perimeter, and a slag discharge channel is formed between adjacent limiting blocks (7).

6. A two-stage juicing screw according to claim 1, characterized in that, The outer diameter of the cutting and extruding rib (5) is a frustum shape with a smaller upper diameter and a larger lower diameter.

7. A juicer, comprising a base (8), a juice collection cup (9) disposed on the base (8), and a feed grinder (10) detachably connected inside the juice collection cup (9), characterized in that, A screw, as described in any one of claims 1-6, is sandwiched between the feeding grinder (10) and the juice collection cup (9) and is connected and linked to the power output shaft on the base (8).

8. The juicer according to claim 7, characterized in that, The feeding grinder (10) includes a hopper (11) and a grinding filter (12) connected to each other. An overflow filter hole (13) is provided at the upper end of the grinding filter (12). A sealing block (14) that cooperates with the overflow filter hole (13) is provided on the inner wall of the juice collection cup (9). The sealing block (14) and the overflow filter hole (13) cooperate to form an overflow gap. The grinding filter (12) and the sealing block (14) cooperate to form a compression filter cavity that cooperates with the screw.

9. The juicer according to claim 8, characterized in that, The hopper (11) and the grinding filter (12) are integrally formed.

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