Two-section type screw for juicer
By employing a two-stage screw design and a feeding gap structure, the problems of low juice yield and high frictional wear in existing juicer screws have been solved, resulting in more efficient juice extraction, a compact structure, and reduced production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN PAIYOUYI ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-01-09
- Publication Date
- 2026-05-05
AI Technical Summary
Existing juicers have short, single-segment screws, resulting in low juice yield, high pulp content, and increased production costs due to frictional wear.
The screw adopts a two-stage design, including a first cutting and extrusion section and a second cutting and extrusion section. Combined with the feeding gap and limiting structure, it realizes secondary uniform feeding and more thorough extrusion of fruit and vegetable materials. The screw is fixed by the stepped section and the limiting boss to avoid frictional wear.
It increases juice yield, reduces pulp content, lowers friction loss, improves juicing effect and structural compactness, and reduces production costs.
Smart Images
Figure CN224193264U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a juicer screw, and more specifically, to a two-section screw for a juicer. 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 itself is the key component. To achieve a compact structure or address size considerations, existing screws are generally short, and their spiral-shaped extrusion ribs on the outer wall are a single, integral structure. Furthermore, in downward-pressing screw assembly structures, there is a ring or circumferentially distributed boss at the lower part or near the lower end of the screw. The lower end of the filter assembly presses against the ring or boss, thus clamping the screw to the bottom of the cup. Since the screw rotates during operation, friction occurs between the ring or boss and the lower end of the filter assembly. To solve this technical problem, existing technologies generally increase the overall hardness of the screw and the ring or boss, or add wear-resistant metal parts to the ring or boss. Regardless of the method, this significantly increases the production cost of the juicer. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of the existing technology by providing a compact two-stage screw for a juicer. Through two-stage cutting and squeezing, the juice yield is higher, the pulp content in the juice is lower, and the taste is smoother.
[0005] The technical solution of this utility model is implemented as follows: a two-section screw for a juicer includes a base body, and the outer wall of the base body is provided with a first cutting and extruding part and a second cutting and extruding part that cooperate with an external cup body from top to bottom; a feeding gap is formed between the first cutting and extruding part and the second cutting and extruding part, and the material passing through the first cutting and extruding part is uniformly fed twice in the feeding gap before entering the second cutting and extruding part.
[0006] In the two-section screw of the juicer described above, a stepped section is integrally formed on the lower part of the first cutting and extruding section or on the upper part of the second cutting and extruding section to cooperate with the external feeding grinder to prevent the screw from moving axially.
[0007] In the two-section screw of the juicer described above, the lower part of the base has several limiting bosses distributed circumferentially to cooperate with the external feeding grinder to prevent the screw from moving axially.
[0008] In the two-section screw of the juicer described above, the first cutting and extruding part is composed of several first ribs integrally formed on the outer wall of the base and integrally spiral in the circumferential direction.
[0009] In the two-section screw of the juicer described above, the first rib is composed of several extrusion strips spaced apart.
[0010] In the two-section screw of the juicer described above, the second cutting and extruding part is composed of several second ribs integrally formed on the outer wall of the base and arranged obliquely in the circumferential direction or integrally spiral in the circumferential direction.
[0011] In the two-section screw of the juicer described above, the number of the second ribs is equal to or greater than the number of the first ribs.
[0012] In the two-section screw of the juicer described above, a plurality of second ribs have a limiting part formed at the upper end, and the outer diameter of the limiting part is larger than the maximum outer diameter of the first cutting and extruding part; the limiting part at the upper end of each second rib cooperates to form an annular stepped part.
[0013] In the two-section screw of the juicer described above, the left and right sides of the lower part of each second rib are integrally formed with a guide slope.
[0014] In the two-section screw of the juicer described above, the upper end of the base is provided with a pre-crushing cutter head with a spiral facing upward; a number of auxiliary cutting edges are integrally formed on the outer side of the pre-crushing cutter head along the spiral trajectory.
[0015] In the aforementioned two-section screw for a juicer, the vertical projection of the outer contour of the foremost auxiliary cutting edge is entirely or partially located outside the vertical projection of the outer contour of the first cutting and extruding section.
[0016] In the aforementioned two-section screw for a juicer, the base is composed of an upper base and a lower base connected sequentially from top to bottom, with the outer diameter of the upper base being smaller than that of the lower base; the first cutting and extruding part is integrally formed on the outer wall of the upper base, and the second cutting and extruding part is integrally formed on the outer wall of the lower base.
[0017] This invention, by adopting the aforementioned structure, firstly transforms the original single-stage juicing structure into a two-stage juicing structure composed of a first cutting and extruding section and a second cutting and extruding section. Fruits and vegetables are cut and extruded by the first cutting and extruding section and then re-enter the second cutting and extruding section for further cutting and extrusion, resulting in more thorough juicing, a higher juice yield, and less residue in the juice. Furthermore, the structure that cooperates with the external cup body and is fixed by a screw is cleverly integrated into the lower part of the first cutting and extruding section or onto the second cutting and extruding section, making the structure more compact. Simultaneously, a feeding gap is provided between the first and second cutting and extruding sections, allowing for secondary uniform material distribution, further improving the juicing effect. Attached Figure Description
[0018] 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.
[0019] Figure 1 This is a side view of Embodiment 1 of the present invention;
[0020] Figure 2 This is a three-dimensional structural schematic diagram of Embodiment 2 of this utility model;
[0021] Figure 3 This is a schematic diagram of the usage state of this utility model;
[0022] Figure 4 This is a front view structural diagram of Embodiment 2 of this utility model;
[0023] Figure 5 This is a three-dimensional structural diagram of Embodiment 2 of this utility model.
[0024] In the figure: 1. Seat body; 1a. Upper seat body; 1b. Lower seat body; 2. First cutting and extrusion section; 2a. Extrusion bar; 3. Second cutting and extrusion section; 4. Step section; 5. Feed gap; 6. Guide slope; 7. Pre-crushing cutter head; 8. Auxiliary cutting edge; 9. Limiting boss; 10. External feeding grinder. Detailed Implementation Example 1
[0025] See Figure 1 and Figure 2As shown, this utility model discloses a two-stage screw for a juicer, including a base 1. The outer wall of the base 1 has a first cutting and extruding section 2 and a second cutting and extruding section 3 arranged sequentially from top to bottom to cooperate with an external cup. A stepped section 4 is formed on the lower part of the first cutting and extruding section or on the second cutting and extruding section 3 to cooperate with an external feeding grinder for fixing the screw. Designing the original single-stage juicing structure into a two-stage juicing structure allows for a more refined and flexible juicing process. Simultaneously, the clever use of the stepped section formed by the cutting and extruding section eliminates the need for a separate annular step at the bottom of the base, making the structure more compact and ingenious.
[0026] A feeding gap 5 is formed between the first cutting and extruding section 2 and the second cutting and extruding section 3. The material passing through the first cutting and extruding section 2 undergoes secondary uniformization in the feeding gap 5 before entering the second cutting and extruding section 3. The feeding gap allows the material passing through the first cutting and extruding section to converge at this point and then enter the second cutting and extruding section evenly, resulting in better juicing effect. 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.
[0027] In this embodiment, the first cutting and extruding section 2 is composed of several first ribs integrally formed on the outer wall of the base 1 and integrally spiral in the circumferential direction. Preferably, the first ribs are composed of several extrusion strips 2a with gaps between them. Segmenting the first ribs allows the material entering each extrusion gap (i.e., the gap formed by two adjacent first ribs) to be diverted at the gap between two adjacent extrusion strips. This avoids excessive material in the extrusion gap, which could damage or jam the extrusion assembly. Diversion also makes full use of each extrusion gap, avoiding poor extrusion effect due to insufficient material in some extrusion gaps, thereby improving the overall juicing level.
[0028] In this embodiment, the second cutting and extruding section 3 is composed of several second ribs integrally formed on the outer wall of the base 1 and arranged obliquely or spirally along the circumference. The second ribs can be of different sizes and shapes. In this embodiment, the second ribs consist of larger, longer thicker ribs and thinner, shorter ribs, arranged alternately with the upper ends of the thinner ribs located below the upper ends of the thicker ribs. This structure further divides the extrusion gap between two adjacent thicker ribs into two narrower extrusion gaps. Combined with the feed gap, this step-by-step flow distribution maximizes the uniform extrusion of the material, resulting in higher juice extraction efficiency.
[0029] 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, which can narrow the extrusion gap, thereby further squeezing the fruits and vegetables to achieve the purpose of finely extracting juice and making the juicing effect better.
[0030] Preferably, the upper ends of several second ribs are formed with limiting portions, and the outer diameter of the limiting portions is larger than the maximum outer diameter of the first cutting and extruding portion 2; the limiting portions at the upper ends of each second rib cooperate to form an annular step portion 4. In this embodiment, the limiting portion is the upper end plane of several second ribs. Of course, the plane can 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 positioning of the screw.
[0031] More preferably, each of the second ribs has an integrally formed guide slope 6 on both the left and right sides at the bottom. The guide slope can squeeze the fruit and vegetable residue downwards, which can improve the residue discharge efficiency.
[0032] More preferably, the upper end of the base 1 is provided with a spirally upward pre-crushing cutter head 7; a plurality of auxiliary cutting blades 8 are integrally formed on the outer surface of the pre-crushing cutter head 7 along the spiral trajectory. The pre-crushing cutter head pre-cuts and crushes large-sized fruits and vegetables, especially whole fruits and vegetables, and then the auxiliary cutting blades further cut and crush the pre-cut fruits and vegetables, thereby improving the crushing effect.
[0033] More preferably, the vertical projection of the outer contour of the foremost auxiliary cutting edge 8 is entirely or partially located outside the vertical projection of the outer contour of the first cutting and extruding section 2. The purpose of this design is to improve the pre-crushing effect of the auxiliary cutting edge. The hopper section and the filter section are connected by a transition section shaped like an inverted frustum, which is the pre-cutting section. Due to its top-large, bottom-small structure, efficient pre-cutting cannot be achieved solely by a spiral or inclined pre-crushing cutter head. This is because the pre-crushing cutter head has only a single cutter head, creating a large gap between the top cutter head and the lower first cutting and extruding section. Adding an auxiliary cutting edge allows for further pre-cutting of larger fruit and vegetable particles entering this gap, thereby improving the pre-crushing effect.
[0034] In this embodiment, the seat 1 is composed of an upper seat 1a and a lower seat 1b connected sequentially from top to bottom. The outer diameter of the upper seat 1a is smaller than the outer diameter of the lower seat 1b. The first cutting and extruding part 2 is integrally formed on the outer wall of the upper seat 1a, and the second cutting and extruding part 3 is integrally formed on the outer wall of the lower seat 1b.
[0035] See Figure 3 As shown, when in use, the external feeding grinder 10 presses down on the stepped part to achieve the positioning of the screw, which is a very ingenious structure. Example 2
[0036] See Figure 4 and Figure 5As shown, this utility model discloses a two-section screw for a juicer, comprising a base 1. The outer wall of the base 1 is sequentially provided with a first cutting and extruding section 2 and a second cutting and extruding section 3, which cooperate with an external cup, from top to bottom. The first cutting and extruding section 2 and the second cutting and extruding section 3 can adopt various conventional structures in the art, as long as they can achieve cutting and extrusion with the cup. In this embodiment, the first cutting and extruding section 2 and the second cutting and extruding section 3 are both integrally formed in a spiral shape as several ribs on the outer wall of the base, and the lower ends of each rib on the first cutting and extruding section 2 are respectively offset from each rib located on the second cutting and extruding section 3.
[0037] Preferably, the outer diameter of the second cutting extrusion section is larger than the outer diameter of the first cutting extrusion section, and the number of ribs on the first cutting extrusion section is less than the number of ribs on the second cutting extrusion section, which has the same function as in Embodiment 1.
[0038] A feeding gap 5 is formed between the first cutting and extruding section 2 and the second cutting and extruding section 3. The material passing through the first cutting and extruding section 2 is uniformly distributed twice in the feeding gap 5 before entering the second cutting and extruding section 3. The effect is the same as in Example 1.
[0039] Preferably, the lower part of the base 1 has several limiting bosses 9 distributed circumferentially to cooperate with the external feeding grinder to prevent the screw from moving axially.
[0040] When in use, the external feeding grinder presses down on the limiting boss and cooperates with the cup body to clamp the screw, so that the screw can only rotate radially. Its usage is the same as that of existing technology.
[0041] 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-section screw for a juicer, comprising a base (1), characterized in that, The outer wall of the seat (1) is provided with a first cutting and extruding part (2) and a second cutting and extruding part (3) that cooperate with the outer cup body from top to bottom; a feeding gap (5) is formed between the first cutting and extruding part (2) and the second cutting and extruding part (3), and the material passing through the first cutting and extruding part (2) is uniformly fed twice in the feeding gap (5) and then enters the second cutting and extruding part (3).
2. The two-stage screw for a juicer according to claim 1, characterized in that, The lower part of the first cutting and extrusion part (2) or the upper part of the second cutting and extrusion part (3) is integrally formed with a stepped part (4) that cooperates with the external feeding grinder to prevent the screw from moving axially.
3. The two-stage screw for a juicer according to claim 1, characterized in that, The lower part of the base (1) has several limiting bosses (9) that cooperate with the external feeding grinder to prevent the screw from moving axially.
4. A two-stage screw for a juicer according to claim 1 or 2, characterized in that, The first cutting and extrusion part (2) is composed of several first ribs integrally formed on the outer wall of the seat (1) and spirally arranged in the circumferential direction; the first ribs are composed of several extrusion strips (2a) with gaps.
5. A two-stage screw for a juicer according to claim 4, characterized in that, The second cutting and extrusion part (3) is composed of several second ribs integrally formed on the outer wall of the seat (1) and inclined in the circumferential direction or spiral in the circumferential direction.
6. A two-stage screw for a juicer according to claim 5, characterized in that, The number of the second reinforcing bars is equal to or greater than the number of the first reinforcing bars.
7. A two-stage screw for a juicer according to claim 5, characterized in that, Several second ribs have a limiting part formed at the upper end, and the outer diameter of the limiting part is larger than the maximum outer diameter of the first cutting and extruding part (2); the limiting part at the upper end of each second rib cooperates to form an annular step part (4).
8. A two-stage screw for a juicer according to claim 5, characterized in that, Each of the second reinforcing bars has a guide slope (6) integrally formed on the left and right sides of its lower part.
9. A two-stage screw for a juicer according to claim 1, characterized in that, The upper end of the base (1) is provided with a spiral-facing pre-crushing cutter head (7); a number of auxiliary cutting edges (8) are integrally formed on the outer side of the pre-crushing cutter head (7) along the spiral trajectory.
10. A two-stage screw for a juicer according to claim 9, characterized in that, The vertical projection of the outer contour of the auxiliary cutting edge (8) located at the foremost point is entirely or partially located outside the vertical projection of the outer contour of the first cutting extrusion part (2).
11. A two-stage screw for a juicer according to claim 1, characterized in that, The seat (1) is composed of an upper seat (1a) and a lower seat (1b) connected sequentially from top to bottom. The outer diameter of the upper seat (1a) is smaller than the outer diameter of the lower seat (1b). The first cutting and extruding part (2) is integrally formed on the outer wall of the upper seat (1a), and the second cutting and extruding part (3) is integrally formed on the outer wall of the lower seat (1b).