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, and particularly to screws and juicers.

Background Art

[0002] Juicers can process fruits and vegetables into delicious drinks and are always popular among people. With the improvement of people's living standards, juicers have spread not only to beverage stores but also to many households' kitchens and have become 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 squeeze out 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 for solving the technical problem of insufficient juice extraction. To achieve the above object, the technical solution adopted by the present invention is as follows. A juicer, comprising a squeezing chamber and a screw, the screw being any of the above screws, the squeezing part being located in the squeezing chamber, a second step having a downward table surface being installed in the squeezing chamber, and the second step abutting against the first step.

Effects of the Invention

[0006] The screw of the present invention can further squeeze the material by providing two squeezing parts, and by installing a first step having an upward table surface, the first step can abut against the screw from above, prevent the upward movement of the screw, stabilize the screw, and prevent the screw from shaking. Especially when there are multiple squeezing parts, the forces received at different positions of the screw are uneven, and shaking is more likely to occur, causing the problem of reduced juice extraction efficiency.

[0007] Preferably, there are two squeezing parts, which are the first squeezing part and the second squeezing part in order from bottom to top, and a first step is installed between the first squeezing part and the second squeezing part. The first squeezing part and the second squeezing part can squeeze the material twice, and through the two squeezes, a much higher juice extraction rate can be achieved than when squeezing only once with the same squeezing stroke. This is because the two squeezes mainly target the residue remaining after the first squeeze, while squeezing with a single long stroke is likely to cause the problem of low juice extraction rate because it squeezes a mixture of residue and juice.

[0008] Preferably, three squeezing parts are installed, which are the first squeezing part, the second squeezing part and the third squeezing part in order from bottom to top, and a first step is installed between the second squeezing part and the third squeezing part. By providing the three squeezing parts, it effectively contributes to further increasing the number of squeezes and further improving the juice extraction rate of the squeeze, and the first step is installed between the third squeezing part and the second squeezing part, closer to the end of the screw, further enhancing the stability of the screw.

[0009] Preferably, pressing ribs are installed in the pressing part, and the density of the pressing ribs in the pressing part located below is greater than the density of the pressing ribs in the pressing part located above. Since the pressing ribs in the lower pressing part need to further press the residue, the greater the density of the pressing ribs, the more efficiently the juice can be pressed from the residue.

[0010] Preferably, a first residue leakage hole is installed in the first step. By installing the first residue leakage hole, the residue can be smoothly guided to the lower pressing chamber, and the residue can be further pressed, contributing to the improvement of the pressing efficiency.

[0011] Preferably, a residue cutting blade is installed above the first step. By installing the residue cutting blade, the residue here 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 regions of the screw. When the hardness of the residue cutting blade is high, the shearing force is strengthened, contributing to the improvement of the residue cutting efficiency. Also, when the hardness of the residue cutting blade is high, the problem of easy wear of the surface can be prevented, preventing the residue from remaining and reducing the labor of cleaning without adversely affecting the service life of the screw.

[0013] Preferably, there is no fixed shaft at the tip of the screw. Due to the first step described above, the rotation stability of the screw is ensured, and the pressing efficiency is guaranteed. Without a fixed shaft at the tip, the assembly and use become simple, and it can be used smoothly without the need for precise alignment.

[0014] The juicer of the present invention uses the above screw and engages with the second step, so that when the screw rotates, the screw can be stabilized, preventing the reduction of the juice extraction efficiency caused by the screw moving upward or swaying during rotation and juice extraction.

[0015] Preferably, a second residue leakage hole is provided in the second step. The second residue leakage hole is provided in the second step, and the residue can be smoothly introduced into the lower pressing chamber for further pressing, without being affected by the rotation of the screw.

[0016] Preferably, a filter screen is provided in the pressing chamber, and the pore size of the filter screen corresponding to the pressing part located below is smaller than that of the filter screen corresponding to the pressing part located above. The lower filter screen corresponds to further pressing the residue. Therefore, the finer filter screen contributes to squeezing the juice out of the residue, and at the same time can prevent the finely crushed residue from leaking through the filter screen and mixing into the juice, thus preventing the quality of the squeezed juice from being affected.

Brief Description of the Drawings

[0017] To more clearly explain the technical solutions in the embodiments of the present invention or the prior art, the drawings necessary for describing the embodiments or the prior art will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without creative labor. Here,

Figure 1

Figure 2

Figure 3

Figure 4

[0018] Hereinafter, with reference to the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative labor shall fall within the protection scope of the present invention.

[0019] In addition, when an element is referred to as being "fixed" or "installed" to another element, it may be directly or indirectly installed to the other element. When one element is referred to as being "connected" to another element, it may be directly connected to the other element or indirectly connected to the other element.

[0020] In addition, the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description and simplification of the description of the present invention, and does not indicate or imply that the shown device or element must have a specific orientation and be configured and operated in a specific orientation. Therefore, it should not be understood as a limitation to 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 diagram of a screw 1200 according to Example 1 of the present invention, and FIG. 2 is a schematic cross-sectional structural diagram of a juicer 1000 according to Example 1 of the present invention. This example discloses a screw 1200, which includes a first squeezing part 1211 and a second squeezing part 1212 from bottom to top. A first step 1220 with an upward table surface is installed between the first squeezing part 1211 and the second squeezing part 1212. Squeezing ribs 1230 are installed on both the first squeezing part 1211 and the second squeezing part 1212, and the density of the squeezing ribs 1230 in the first squeezing part 1211 is greater than the density of the squeezing ribs 1230 in the second squeezing part 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 be in direct contact with the material. This embodiment further discloses a juicer 1000 including a juicer cup 1100 and a base 1300, with the juicer cup 1100 fixed to the base 1300. A squeezing chamber 1110 is installed inside the juicer cup 1100, and a screw 1200 is attached inside the juicer cup 1100. The squeezing part 1210 is installed inside the squeezing chamber 1110. A power unit 1310 is installed inside the base 1300, and the power unit 1310 is connected to the screw 1200 by the bottom of the screw 1200 to provide power thereto. Inside the squeezing chamber 1110, a second step 1111 with a downward tabletop is installed, and the second step 1111 abuts against the first step 1220 to press the screw 1200 from above. A filter screen 1112 is installed inside the squeezing 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. By installing the first step 1220 on the screw 1200 of this embodiment, when the screw 1200 rotates, shaking does not occur, preventing it from affecting the juicing efficiency. At the same time, the first step 1220 can also prevent the upward movement of the screw 1200. Also, by setting the density of the squeezing ribs 1230, it can contribute to further squeezing the material and residue of the first squeezing part 1211. By installing the first residue leakage hole 1221, the material and residue can be smoothly introduced below the first step 1220, improving the juicing efficiency. By installing the residue cutting blade 1240, it can prevent the residue from accumulating above the first step 1220 and prevent it from affecting 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 is easier to clean. In the juicer 1000 of this embodiment, by installing the second step 1111 and engaging it with the first step 1220, the rotation of the screw 1200 can be stably improved, preventing the influence of shaking on the juicing efficiency and effect. By setting the voids of the filter screen 1112, the residue of the first squeezing part 1211 can be efficiently squeezed out to prevent fine residue from flowing out together with the juice.

Embodiment 2

[0023] As shown in FIGS. 3 and 4, FIG. 3 is a structural schematic diagram of the screw 2200 of Embodiment 2 of the present invention, and FIG. 4 is a cross-sectional structural schematic diagram of the juicer 2000 of 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, with the juicer cup 2100 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. 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 the juicer 2000 in this embodiment have basically the same effects as the screw 1200 and the juicer 1000 in Embodiment 1. Further, three squeezing parts are installed on the screw 2200 in this embodiment, and the residue can be triple-squeezed, further improving the squeezing effect. Also, the first step 2220 is installed between the second squeezing part 2212 and the third squeezing part 2213, which is advantageous for the stabilization of the screw 2200 and prevents a decrease in the juice extraction efficiency due to the shaking of the screw 2200 during rotation. In the juicer 2000 of this embodiment, the second residue leakage hole 2213 is installed at the second step 2111, and the residue can be smoothly introduced below the first step 2220 without affecting the rotation of the screw 2200, preventing an impact on the juice extraction efficiency. What is disclosed above are only preferred embodiments of the present invention. Of course, the scope of the present invention cannot be limited thereby. Therefore, equivalent changes made based on the claims of the present invention still belong to the scope of the present invention.

Claims

1. 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. The screw is characterized by this.

2. There are two squeezing parts, which are the first squeezing part and the second squeezing part in order from bottom to top. A first step is installed between the first squeezing part and the second squeezing part. The screw according to claim 1 is characterized by this.

3. There are three squeezing parts, which are the first squeezing part, the second squeezing part and the third squeezing part in order from bottom to top. A first step is installed between the second squeezing part and the third squeezing part. The screw according to claim 1 is characterized by this.

4. Squeezing ribs are installed on the squeezing parts. The density of the squeezing ribs in the squeezing part located below is greater than the density of the squeezing ribs in the squeezing part located above. The screw according to claim 1 is characterized by this.

5. A first residue leakage hole is installed in the first step. The screw according to claim 1 is characterized by this.

6. Above the first step, a residue cutting blade is installed. The screw according to claim 1 is characterized by this.

7. The surface hardness of the residue cutting blade is greater than the surface hardness of other regions of the screw. The screw according to claim 6 is characterized by this.

8. There is no fixed shaft at the tip of the screw. The screw according to claim 1 is characterized by this.

9. A juicer, including a squeezing chamber and a screw. The screw is the screw according to any one of claims 1 to 7. The squeezing part is located in the squeezing chamber. A second step with a downward table surface is installed in the squeezing chamber. The second step abuts against the first step. The juicer is characterized by this.

10. A second residue leakage hole is installed in the second step. The juicer according to claim 9 is characterized by this.

11. A filter screen is installed in the squeezing chamber. The pore size of the filter screen corresponding to the squeezing part located below is smaller than the pore size of the filter screen corresponding to the squeezing part located above. The juicer according to claim 9 is characterized by this.

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