Screw and Juicer

Abstract

The present invention provides screws (1200, 2200) and juicers (1000, 2000). The screws (1200, 2200) are provided with at least two squeezing parts from bottom to top along the axis of the screws (1200, 2200), and a first step (1220, 2220) with an upward table surface is installed between any two squeezing parts. The juicers (1000, 2000) include squeezing chambers (1110, 2110) and screws (1200, 2200). The squeezing parts are located in the squeezing chambers (1110, 2110), and a second step (1111, 2111) with a downward table surface is installed in the squeezing chambers (1110, 2110). The second step (1111, 2111) abuts against the first step (1220, 2220). The screws (1200, 2200) and the juicers (1000, 2000) can effectively utilize a plurality of squeezing parts to squeeze materials multiple times. Also, the engagement of the second step (1111, 2111) and the first step (1220, 2220) prevents the screws (1200, 2200) from swaying and affecting the juice extraction efficiency.

Description

Technical Field

[0001] The technical field of the present invention relates to juice extraction equipment, particularly to screws and juicers.

Background Art

[0002] A juicer can process fruits and vegetables into delicious drinks and is always popular among people. With the improvement of people's living standards, juicers have not only spread to beverage stores but also to the kitchens of many families, becoming an essential item to enhance the quality of people's lives.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The operating principle of a juicer is to put materials such as fruits and vegetables through a supply port, and further extract the juice of materials such as fruits and vegetables through the propulsion and compression of a screw. However, conventional juicers have problems such as low juice extraction efficiency, which has been an issue that researchers and developers in the industry have been working on for many years.

Means for Solving the Problems

[0004] One object of the present invention is to provide a screw for solving the technical problem of low juice extraction efficiency. To achieve the above object, the technical solution adopted by the present invention is as follows. A screw, along the axis of the screw, at least two squeezing parts are installed from bottom to top, and a first step with an upward table surface is installed between any two of the squeezing parts.

[0005] Another object of the present invention is to provide a juicer that solves the technical problem of insufficient juicing. To achieve the above object, the technical solution employed by the present invention is as follows: A juicer comprising a pressing chamber and a screw, wherein the screw is any of the above-mentioned screws, the pressing section is located in the pressing chamber, a second step having a downward-facing base is installed in the pressing chamber, and the second step abuts against the first step. [Effects of the Invention]

[0006] The screw of the present invention, by having two compression sections, can further compress the material, and by installing a first step with an upward-facing base, the first step can contact the screw from above, preventing upward movement of the screw, stabilizing the screw, and preventing the screw from shaking. In particular, when there are multiple compression sections, the force received at different positions of the screw is uneven, making it more prone to shaking and causing a problem of reduced juice extraction efficiency.

[0007] Preferably, there are two pressing sections, a first pressing section and a second pressing section, arranged from bottom to top, with a first step between the first and second pressing sections. The first and second pressing sections can press the material twice, and two pressings result in a much higher juice yield than when pressing only once with the same pressing stroke. This is because two pressings mainly target the residue remaining after the first pressing, whereas a single long-stroke pressing presses a mixture of residue and juice, which tends to result in a low juice yield.

[0008] Preferably, there are three pressing sections, arranged from bottom to top as a first pressing section, a second pressing section, and a third pressing section, with a first step between the second and third pressing sections. Providing these three pressing sections effectively contributes to further increasing the number of pressing cycles and further improving the juice extraction rate, and the first step, located between the third and second pressing sections, is closer to the end of the screw, further enhancing the stability of the screw.

[0009] Preferably, the pressing section is equipped with pressing ribs, and the density of the pressing ribs in the lower pressing section is greater than the density of the pressing ribs in the upper pressing section. Since the pressing ribs in the lower pressing section need to further compress the residue, a higher density of the pressing ribs allows for more efficient extraction of juice from the residue.

[0010] Preferably, a first residue leak hole is installed in the first step. By installing the first residue leak hole, the residue is smoothly guided to the lower pressing chamber, allowing the residue to be further compressed, which contributes to improving the pressing efficiency.

[0011] Preferably, a residue cutting blade is installed above the first step. By installing the residue cutting blade, the residue at this point can be cut, preventing the residue from accumulating on the first step and affecting the juice extraction efficiency.

[0012] More preferably, the surface hardness of the residue cutting blade is greater than the surface hardness of other areas of the screw. Higher hardness of the residue cutting blade strengthens the shear force, contributing to improved residue cutting efficiency. Furthermore, higher hardness of the residue cutting blade prevents the problem of surface wear, thus reducing the effort required for cleaning and preventing residue buildup without adversely affecting the screw's service life.

[0013] Preferably, the screw does not have a fixed shaft at its tip. The screw's rotational stability is ensured by the first step, guaranteeing compression efficiency. The absence of a fixed shaft at its tip simplifies assembly and use, and allows for smooth operation without the need for precise alignment.

[0014] The juicer of the present invention uses the above-mentioned screw, and through engagement with the second step, the screw can be stabilized when it rotates, preventing a decrease in juicing efficiency caused by the screw rotating and moving or shaking upward during juicing.

[0015] Preferably, a second residue leak hole is installed in the second step. The second residue leak hole is installed in the second step, allowing the residue to be smoothly introduced into the lower compression chamber for further compression, and is not affected by the rotation of the screw.

[0016] Preferably, a filter screen is installed in the pressing chamber, and the pores of the filter screen corresponding to the lower pressing section are smaller than those of the filter screen corresponding to the upper pressing section. Since the lower filter screen corresponds to further pressing the residue, the finer filter screen contributes to squeezing the juice out of the residue, while also preventing finely crushed residue from leaking through the filter screen and mixing into the juice, thus preventing an impact on the quality of the juice. [Brief explanation of the drawing]

[0017] To more clearly illustrate embodiments of the present invention or technical concepts in the prior art, the drawings necessary for describing embodiments or the prior art will be briefly described below. Clearly, the drawings in the following description are only a few embodiments of the present invention, and those skilled in the art can obtain other drawings based on these without any creative effort. Here, [Figure 1] This is a schematic diagram of the structure of the screw 1200 in Example 1. [Figure 2] This is a schematic diagram of the cross-sectional structure of Juicer 1000 of Example 1. [Figure 3] This is a schematic diagram of the structure of the screw 2200 in Example 2. [Figure 4]This is a schematic cross-sectional diagram of the juicer 2000 of Example 2. The symbols in the diagram are as follows: 1000, 2000 - juicer, 1100, 2100 - juicer cup, 1110, 2110 - pressing chamber, 1111, 2111 - second step, 1112, 2112 - filter screen, 2113 - second residue leak hole, 1200, 2200 - screw, 1211, 2211 - first pressing section, 1212, 2212 - second pressing section, 1220, 2220 - first step, 1221 - first residue leak hole, 1230, 2230 - pressing rib, 1240 - residue cutting blade, 1300, 2300 - base, 1310, 2310 - power unit. Embodiments of the present invention

[0018] The technical concepts in the embodiments of the present invention will be described clearly and completely below with reference to the drawings of the embodiments of the present invention, and it is clear that the embodiments described are only a part of the embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art without creative work based on the embodiments of the present invention are all within the scope of the protection of the present invention.

[0019] When an element is said to be "fixed" or "installed" to another element, it may be installed directly or indirectly to the other element. When one element is said to be "connected" to another element, it may be connected directly to the other element or indirectly to the other element.

[0020] Furthermore, the directions or positional relationships indicated by terms such as "length," "width," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" are based on the directions or positional relationships shown in the drawings and are merely for the convenience and simplification of the explanation of the present invention. They do not indicate or imply that the shown devices or elements have a specific direction or must be configured and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0021] Also, the terms "first" and "second" are merely for the purpose of explanation and should not be understood as indicating relative importance or implicitly indicating the number of the indicated technical features. Thus, the features limited to "first" and "second" can explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise particularly limited.

Example 1

[0022] As shown in FIGS. 1 and 2, FIG. 1 is a schematic structural view of a screw 1200 according to Example 1 of the present invention, and FIG. 2 is a schematic cross-sectional structural view of a juicer 1000 according to Example 1 of the present invention. This example discloses a screw 1200, which includes a first squeezing portion 1211 and a second squeezing portion 1212 from bottom to top. A first step 1220 with an upward table surface is installed between the first squeezing portion 1211 and the second squeezing portion 1212. Squeezing ribs 1230 are installed on both the first squeezing portion 1211 and the second squeezing portion 1212, and the density of the squeezing ribs 1230 in the first squeezing portion 1211 is greater than the density of the squeezing ribs 1230 in the second squeezing portion 1212. A first residue leakage hole 1221 for introducing the material or residue above the first step 1220 to the lower part of the first step 1220 is installed in the first step 1220. Above the first step 1220, a residue cutting blade 1240 is installed to cut the residue, make it easier for the residue to flow downward from the first residue leakage hole 1221, and prevent the residue from accumulating above the first step 1220. The surface hardness of the residue cutting blade 1240 is greater than the surface hardness of other regions of the screw 1200. There is no fixed shaft at the tip of the screw 1200, and it can directly contact the material. This embodiment further discloses a juicer 1000 comprising a juicer cup 1100 and a base 1300, wherein the juicer cup 1100 is fixed to the base 1300. A pressing chamber 1110 is installed inside the juicer cup 1100, and a screw 1200 is mounted inside the juicer cup 1100. A pressing section 1210 is installed inside the pressing chamber 1110. A power unit 1310 is installed inside the base 1300, and the power unit 1310 is connected to the screw 1200 by its bottom and provides power to it. A second step 1111 with a downward-facing base is installed inside the pressing chamber 1110, and the second step 1111 abuts against the first step 1220 and presses the screw 1200 from above. A filter screen 1112 is installed inside the pressing chamber 1110, and the pores of the filter screen 1112 below the first step 1220 are smaller than the pores of the filter screen 1112 above the first step 1220. In this embodiment, the screw 1200 is provided with a first step 1220, which prevents vibration when the screw 1200 rotates, thus preventing an impact on the juicing efficiency. At the same time, the first step 1220 also prevents the screw 1200 from moving upward. Furthermore, by setting the density of the compression ribs 1230, it is possible to further compress the material and residue in the first compression section 1211. By providing a first residue leakage hole 1221, the material and residue can be smoothly introduced below the first step 1220, improving the juicing efficiency. By providing a residue cutting blade 1240, it is possible to prevent residue from accumulating above the first step 1220, thus preventing an impact on the juicing efficiency. By increasing the surface hardness of the residue cutting blade 1240, the service life of the residue cutting blade 1240 is ensured, and it becomes easier to clean. In this embodiment, the juicer 1000 is equipped with a second step 1111 which engages with the first step 1220, thereby stabilizing the rotation of the screw 1200 and preventing vibrations from affecting the juicing efficiency and effect. By providing gaps in the filter mesh 1112, the residue in the first pressing section 1211 can be efficiently extracted to remove the juice, and fine residue can be prevented from flowing out with the juice. [Example 2]

[0023] As shown in FIGS. 3 and 4, FIG. 3 is a structural schematic diagram of the screw 2200 according to Embodiment 2 of the present invention, and FIG. 4 is a cross-sectional structural schematic diagram of the juicer 2000 according to Embodiment 2 of the present invention. This embodiment discloses a screw 2200, which includes a first squeezing part 2211, a second squeezing part 2212, and a third squeezing part 2213 from bottom to top. A first step 2220 with an upward table surface is installed between the second squeezing part 2212 and the third squeezing part 2213. Squeezing ribs 2230 are installed in all of the first squeezing part 2211, the second squeezing part 2212, and the third squeezing part 2213. The density of the squeezing ribs 2230 in the first squeezing part 2211 is approximately equal to the density of the squeezing ribs 2230 in the second squeezing part 2212, and the density of the squeezing ribs 2230 in the second squeezing part 2212 is greater than the density of the squeezing ribs 2230 in the third squeezing part 2213. There is no fixed shaft at the tip of the screw 2200. This embodiment further discloses a juicer 2000 including a juicer cup 2100 and a base 2300, where the juicer cup 2100 is fixed to the base 2300. A squeezing chamber 2110 is installed in the juicer cup 2100, and a screw 2200 is installed in the juicer cup 2100. The squeezing part 2210 is installed in the squeezing chamber 2110. A power unit 2310 is installed in the base 2300, and the power unit 2310 is connected to the screw 2200 by the bottom of the screw 2200 to provide power thereto. A second step 2111 with a downward table surface is installed in the squeezing chamber 2110, and the second step 2111 abuts against the first step 2220 to press the screw 2200 from above. A second residue leakage hole 2113 for introducing the material or residue above the first step 2220 to the lower part of the first step 2220 is installed in the second step 2111. A filter screen 2112 is installed in the squeezing chamber 2110. The pore size of the filter screen 2112 corresponding to the first squeezing part 2211 is approximately equal to the pore size of the filter screen 2112 corresponding to the second squeezing part 2212, and the pore size of the filter screen 2112 corresponding to the second squeezing part 2212 is smaller than the pore size of the filter screen 2112 corresponding to the third squeezing part 2213. The screw 2200 and juicer 2000 in this embodiment have essentially the same effect as the screw 1200 and juicer 1000 in Example 1. Furthermore, the screw 2200 in this embodiment is equipped with three pressing sections, allowing for triple pressing of the residue, further improving the pressing effect. In addition, the first step 2220 is installed between the second pressing section 2212 and the third pressing section 2213, which is advantageous for stabilizing the screw 2200 and prevents a decrease in juicing efficiency due to the screw 2200 shaking during rotation. In the juicer 2000 of this embodiment, the second residue leakage hole 2213 is installed in the second step 2111, allowing the residue to be smoothly introduced below the first step 2220 without affecting the rotation of the screw 2200, thus preventing an impact on juicing efficiency. The embodiments disclosed herein are merely preferred examples of the present invention, and of course, this does not limit the scope of the present invention; therefore, equivalent modifications made pursuant to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A juicer comprising a pressing chamber and a screw, wherein at least two pressing sections are installed from bottom to top along the axis of the screw, a first step having an upward-facing surface is installed between any two of the pressing sections, the pressing sections are located inside the pressing chamber, a second step having a downward-facing surface is installed inside the pressing chamber, the second step abuts against the first step, and a second residue leak hole is installed in the second step.

2. The juicer according to claim 1, characterized in that the aforementioned pressing section has two sections, a first pressing section and a second pressing section, arranged from bottom to top, and a first step is installed between the first pressing section and the second pressing section.

3. The juicer according to claim 1, characterized in that the aforementioned pressing section has three sections, which are, in order from bottom to top, a first pressing section, a second pressing section, and a third pressing section, and a first step is installed between the second pressing section and the third pressing section.

4. The juicer according to claim 1, characterized in that the pressing section is equipped with pressing ribs, and the density of the pressing ribs in the lower pressing section is greater than the density of the pressing ribs in the upper pressing section.

5. The juicer according to claim 1, characterized in that a first residue leakage hole is provided in the first step.

6. The juicer according to claim 1, characterized in that a residue cutting blade is installed above the first step.

7. The juicer according to claim 6, characterized in that the surface hardness of the residue cutting blade is greater than the surface hardness of other areas of the screw.

8. The juicer according to claim 1, characterized in that there is no fixed shaft at the tip of the screw.

9. The juicer according to claim 1, characterized in that a filter mesh is installed in the pressing chamber, and the pores of the filter mesh corresponding to the pressing section located below are smaller than the pores of the filter mesh corresponding to the pressing section located above.

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