Split type screw for juicer and juicer adopting same

Abstract

The utility model discloses a split type screw rod for a juicer and the juicer adopting the screw rod. Belongs to the technical field of juicers. The screw rod comprises a seat body, spiral extrusion ribs are arranged on the outer wall of the seat body in the circumferential direction, a groove is formed in the lower portion of the seat body in the circumferential direction, and a positioning ring is fixedly connected into the groove; the juicer comprises a main machine, an extrusion cup is detachably connected to the main machine, and a stock bin grinding piece is detachably connected to the extrusion cup. And the screw rod is arranged in the stock bin grinding piece and is connected and linked with an output shaft of a driving device in the main machine. The utility model aims to provide the split screw rod for the juicer, which is convenient to process, wear-resistant and lower in cost, and the juicer adopting the screw rod; the juicer is used for juicing.

Description

Technical Field

[0001] The utility model relates to a screw rod, and more specifically, to a split screw rod for a juice extractor. The utility model also relates to a juice extractor using the screw rod. Background Art

[0002] The juice extractor is developed on the basis of the conventional juicer, and their main working purpose is to turn fruits into juice to improve the taste and facilitate drinking. However, the juice extractor has made a qualitative leap compared with the traditional cup blender and juicer. The low-speed screw extrusion technology of the juice extractor squeezes out the juice slowly like squeezing a towel, without damaging the fruit cell structure, and the fruit nutrition is preserved. Moreover, the low-speed juice extraction does not generate high heat, and also avoids the problem of juice being oxidized by heat.

[0003] The core components of the traditional juice extractor are the screw rod assembly and the filter screen assembly that cooperate with each other. In the downward pressing screw rod assembly structure, there is a ring or circumferentially distributed bosses at the lower part or near the lower end of the screw rod, and the lower end of the filter screen assembly is pressed on the ring or bosses, so as to cooperate with the bottom of the cup body to clamp the screw rod. Since the screw rod rotates during work, there is friction between the ring or bosses and the lower end of the filter screen assembly. To solve this technical problem, the prior art generally adopts the method of increasing the overall hardness of the screw rod and the ring or bosses, or adding wear-resistant metal parts on the ring or bosses. No matter which method is used, it will greatly increase the production cost of the juice extractor. Summary of the Utility Model

[0004] The former object of the utility model is to provide a split screw rod for a juice extractor that is convenient for processing, wear-resistant and has a low cost in view of the above-mentioned deficiencies of the prior art.

[0005] The latter object of the utility model is to provide a juice extractor using the above-mentioned screw rod.

[0006] The former technical solution of the utility model is realized as follows: a split screw rod for a juice extractor includes a seat body, and spiral extrusion ribs are arranged on the outer wall of the seat body along the circumference. A groove is arranged on the lower part of the seat body along the circumference, and a positioning ring is fixedly connected in the groove.

[0007] In the above-mentioned split screw rod for a juice extractor, the extrusion ribs are composed of a plurality of extrusion strips arranged at intervals.

[0008] In the above-mentioned split screw rod for a juice extractor, the length of the extrusion strip is 3 - 150 mm.

[0009] In the above-mentioned split screw rod for a juice extractor, the high-end end face of the extrusion strip is an inclined surface that inclines towards the advancing direction of the material.

[0010] In the above-mentioned split screw for a juice extractor, a pre-crushing head with an upward helix is provided at the upper end of the seat body; the upper end of one of the extrusion ribs extends spirally upward along the outer wall of the pre-crushing head, and the upper end of this extrusion rib is located below the upper end of the pre-crushing head and is in a planar shape extending outward.

[0011] In the above-mentioned split screw for a juice extractor, the vertical projection of the outer contour of the cutting and extrusion rib near the upper end is located outside the vertical projection of the outer contour of the lower end of the seat body.

[0012] In the above-mentioned split screw for a juice extractor, the positioning ring includes an annular part whose outer diameter is adapted to the outer diameter of the seat body at the installation position. A number of positioning convex parts are distributed at intervals along the circumferential direction on the outer wall of the annular part, and a number of limiting concave parts are distributed at intervals along the circumferential direction on the inner wall of the annular part.

[0013] The latter technical solution of the present invention is realized as follows: A juice extractor using the above-mentioned screw includes a main body. An extrusion cup is detachably connected to the main body. The extrusion cup is detachably connected with a material bin grinding part. The screw is arranged in the material bin grinding part and is connected and linked with the output shaft of the driving device in the main body.

[0014] After the present invention adopts the above structure, by separately processing and then assembling the seat body and the positioning ring, it is possible to have different materials for the two. The positioning ring can be made of a material with higher hardness. In this way, under the condition of ensuring the normal operation of the screw, it can have a longer service life and lower processing cost. Description of the Drawings

[0015] The following further describes the present invention in detail with reference to the embodiments in the drawings, but it does not constitute any limitation to the present invention.

[0016] Figure 1 is a schematic structural diagram of the screw of the present invention;

[0017] Figure 2 is Figure 1 the side view structural diagram of

[0018] Figure 3 is Figure 1 the sectional view structural diagram of

[0019] Figure 4 is a schematic structural diagram of the positioning ring of the present invention;

[0020] Figure 5 is a schematic structural diagram of the juice extractor of the present invention;

[0021] Figure 6 is the exploded structural diagram of the components of the juice extractor of the present invention.

[0022] In the figure: 1, seat body; 2, cutting and extrusion ribs; 3, positioning ring; 3a, annular part; 3b, positioning convex part; 3c, limiting concave part; 2a, extrusion strip; 4, pre-crushing head; 5, main machine; 6, extrusion cup; 7, bin grinding part. Detailed implementation mode

[0023] Refer to Figures 1 to 4 As shown, a split screw for a juice extractor of the present utility model includes a seat body 1, and a spiral cutting and extrusion rib 2 is arranged circumferentially on the outer wall of the seat body 1. At the same time, a groove is arranged circumferentially at the lower part of the seat body 1, and a positioning ring 3 is fixedly connected in the groove. The positioning ring and the seat body are processed separately, so that the positioning ring can be processed with a higher hardness material. When the screw rotates and the positioning ring contacts the external components, it has stronger wear resistance, thereby effectively extending the service life. This structure, compared with the structure in which the positioning ring and the screw are integrally formed, either has a high cost due to the high overall hardness, or has insufficient overall hardness and is not wear-resistant, and additional processing of the positioning ring is required, such as adding a metal outer lining, etc., and the cost will also increase due to the increase in the process.

[0024] In the actual processing process, the positioning ring can be formed first and then put into the injection molding equipment of the seat body to be injection molded into one body. It can also be fixedly connected with the seat body by means of screws. This is easily conceivable by those skilled in the art based on the concept of the present utility model.

[0025] In this embodiment, the positioning ring 3 includes an annular part 3a whose outer diameter is adapted to the outer diameter of the seat body 1 at the installation position. A plurality of positioning convex parts 3b are arranged at intervals circumferentially on the outer wall of the annular part 3a, and a plurality of limiting concave parts 3c are arranged at intervals circumferentially on the inner wall of the annular part 3a. The annular part can make the positioning convex parts form a complete whole, and the structure is more stable. The limiting concave part can prevent the positioning ring from rotating relative to the seat body.

[0026] Preferably, the cutting and extrusion rib 2 is composed of a plurality of extrusion strips 2a arranged at intervals. Designing the original whole cutting and extrusion rib into a segmented structure can make the material move more conveniently with the pressure change when descending. Through experiments, while ensuring the juice extraction effect, it can have a higher juice extraction efficiency. It has unexpected effects.

[0027] Further preferably, the length of the extrusion strip 2a is 3 - 150 mm. In this embodiment, the extrusion strip is composed of a long extrusion strip located in the upper part mainly for pre-cutting and rough crushing and a short extrusion strip located in the lower part for cooperating with the outer cup or filter screen to cut and extrude fruits and vegetables. The length of the long extrusion strip is generally between 80 - 150 mm, and the length of the short extrusion strip is between 3 - 80 mm.

[0028] Further preferably, the upper end face of the extrusion bar 2a is an inclined plane that slopes towards the advancing direction of the material. The inclined plane structure can facilitate the downward guiding of the material. At the same time, the tip formed by the inclined plane and the upper end face is convenient for cutting and crushing fruits and vegetables, enabling them to be decomposed into smaller pieces more quickly.

[0029] In this embodiment, a pre-crushing head 4 with a spiral upward shape is provided at the upper end of the seat body 1. The upper end of one of the cutting and extrusion rib strips 2 extends spirally upward along the outer wall of the pre-crushing head 4, and the upper end of this cutting and extrusion rib strip 2 is located below the upper end of the pre-crushing head 4 and is in a planar shape that extends outward. This cutting and extrusion rib strip can make the pre-crushing effect better.

[0030] Further preferably, the vertical projection of the outer contour of the cutting and extrusion rib strip 2 near the upper end is located outside the vertical projection of the outer contour of the lower end of the seat body 1. That is, when taking the screw axis as a reference, the distance from the outermost end of the cutting and extrusion rib strip to the screw axis is greater than the distance from the outer wall of the lower end of the seat body to the screw axis.

[0031] With this structure, the cutting and extrusion rib strip near the upper end can, together with the pre-crushing head, play a role in pre-cutting, making the pre-cutting effect better. At the same time, it can also make the inner diameter of the silo larger.

[0032] Refer to Figure 5 and Figure 6 As shown, a juice extractor using the above-mentioned screw of the present invention includes a main body 5. An extrusion cup 6 is detachably connected to the main body 5. The extrusion cup 6 is detachably connected to a silo grinding member 7. The screw is arranged in the silo grinding member 7 and is connected and linked to the output shaft of the driving device in the main body 5.

[0033] It should be noted that in the present invention, the main body, the extrusion cup, and the silo grinding member can adopt other conventional styles and structures in the art, as long as they can be matched with the screw of the present invention.

[0034] The above-mentioned embodiments are the preferred embodiments of the present invention, which are only used to conveniently illustrate the present invention and do not impose any formal restrictions on the present invention. Any person with ordinary knowledge in the technical field, without departing from the technical features of the present invention, using the technical content disclosed by the present invention to make partial changes or modified equivalent embodiments, and without departing from the technical feature content of the present invention, still fall within the scope of the technical features of the present invention.

Claims

1. A split screw for a juicer, comprising a base (1), wherein a spiral cutting extrusion rib (2) is arranged along the circumferential direction on the outer wall of the base (1), characterized in that: The lower part of the seat body (1) is provided with a groove along the circumferential direction, and a positioning ring (3) is fixedly connected in the groove.

2. A split screw for a juicer according to claim 1, characterized in that: The cutting extruded ribs (2) are composed of a plurality of extruded bars (2a) arranged at intervals.

3. A split screw for a juicer according to claim 2, characterized in that: The length of the extruded strip (2a) is 3-150 mm.

4. A split screw for a juicer according to claim 2, characterized in that: The high end surface of the extrusion strip (2a) is an inclined surface inclined toward the advancing direction of the material.

5. The split screw for a juicer according to claim 1, characterized in that: The upper end of the seat body (1) is provided with a pre-crushing head (4) with a spiral pointing upward; The upper end of one of the cutting and extruding ribs (2) extends spirally upward along the outer wall of the pre-crushing head (4), and the upper end of the cutting and extruding rib (2) is located at the lower side of the upper end of the pre-crushing head (4) and is in the shape of a plane extending outward.

6. A split screw for a juicer according to claim 1 or 5, characterized in that: The vertical projection of the outer contour of the cut extruded rib (2) located at the upper proximal end is located outside the vertical projection of the outer contour of the lower end of the seat body (1).

7. The split screw for a juicer according to claim 1, characterized in that: The positioning ring (3) comprises an annular portion (3a) whose outer diameter is adapted to the outer diameter of the seat body (1) at the installation position, a plurality of positioning protrusions (3b) are distributed at intervals along the circumferential direction on the outer wall of the annular portion (3a), and a plurality of limiting recesses (3c) are distributed at intervals along the circumferential direction on the inner wall of the annular portion (3a).

8. A juicer using the screw according to any one of claims 1 to 7, comprising a main unit (5) to which a squeezing cup (6) is detachably connected, characterized in that: The squeezing cup (6) is detachably connected to a silo grinding piece (7), and a screw is disposed in the silo grinding piece (7) and is linked to an output shaft of a driving device in the main machine (5).

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