Squeezing head and juicer

Abstract

A squeezing head (100) and a juicer. The squeezing head (100) comprises a main body portion (110), a squeezing spiral portion (120) and a movable pre-cutting portion (130); the squeezing spiral portion (120) is provided on the outer side wall of the main body portion (110), and the movable pre-cutting portion (130) is movably provided at the top end of the main body portion (110) so as to switch between an unfolded state and a folded state; the rotation diameter of the unfolded movable pre-cutting portion (130) is greater than the rotation diameter of the folded movable pre-cutting portion (130), and the rotation diameter of the movable pre-cutting portion (130) is the rotation diameter of the movable pre-cutting portion (130) in the radial direction of the main body portion (110). By providing the movable pre-cutting portion (130) at the top end of the main body portion (110), ingredients can be effectively pre-cut on the premise of ensuring convenient disassembly and assembly of the squeezing head (100), thereby enabling smoother feeding of the ingredients with less residue, and improving the juice yield and juicing efficiency of the squeezing head (100).

Description

Press head and juicer Technical Field

[0001] This application relates to the field of juicer technology, and more particularly to a press head and a juicer. Background Technology

[0002] A juicer is a machine that can quickly extract juice from fruits and vegetables. It can juice a variety of different kinds of fruits and vegetables and allows users to choose according to their preferences.

[0003] Existing juicers typically have a cutting section fixed at the top of the pressing screw to pre-cut larger pieces of food into smaller volumes, facilitating better pressing efficiency during subsequent pressing by the screw. However, to ensure a large sweeping diameter, the cutting section is usually relatively large. This design often leads to interference between the pressing screw and the inner wall of the pressing barrel, making it difficult to easily assemble and disassemble the pressing screw and the pressing barrel. Summary of the Invention

[0004] Therefore, it is necessary to provide a press head and juicer that are easy to assemble and disassemble and can effectively pre-cut the ingredients.

[0005] A pressing head, comprising:

[0006] Main body;

[0007] A pressing spiral section is disposed on the outer side wall of the main body; and

[0008] The movable pre-cutting part is movably disposed at the top of the main body to switch between an unfolded state and a retracted state. The rotation diameter of the movable pre-cutting part after unfolding is greater than the rotation diameter of the movable pre-cutting part after retracting. The rotation diameter of the movable pre-cutting part is the radial rotation diameter of the movable pre-cutting part in the main body.

[0009] In one embodiment, the main body includes a crushing section and a pressing section connected sequentially from top to bottom. The outer wall of the crushing section is provided with a crushing part, the outer wall of the pressing section is provided with a pressing spiral part, and the top of the crushing section is provided with a movable pre-cutting part.

[0010] In one embodiment, the movable pre-cutting portion slides with the main body to switch between an unfolded state and a retracted state; or, the movable pre-cutting portion rotates with the main body to switch between an unfolded state and a retracted state.

[0011] In one embodiment, the main body has a first axis, and the movable pre-cut portion is rotatable relative to the main body about a second axis to switch between an unfolded state and a retracted state, wherein the first axis and the second axis are arranged opposite to each other.

[0012] In one embodiment, the main body has a first axis, and the movable pre-cut portion is rotatable relative to the main body about a second axis to switch between an unfolded state and a retracted state. The first axis and the second axis are not parallel and do not intersect.

[0013] In one embodiment, the free end of the active pre-cut portion is provided with a smooth transition surface.

[0014] In one embodiment, when the active pre-cutting part is in an unfolded state or a retracted state, the center of the active pre-cutting part is located on one side of the active center of the active pre-cutting part.

[0015] In one embodiment, a pivot is provided at the top of the main body, the movable pre-cutting part is rotatably sleeved on the pivot, and the movable pre-cutting part is capable of rotating relative to the pivot about the axis of the pivot.

[0016] In one embodiment, the movable pre-cutting part is rotatably engaged with the main body part, and the rotation angle of the movable pre-cutting part is ≤180°.

[0017] In one embodiment, a reset mechanism is provided between the active pre-cut portion and the main body portion.

[0018] In one embodiment, a limiting mechanism is provided between the active pre-cut portion and the main body portion.

[0019] In one embodiment, when the pressing head rotates, the rotation diameter A1 of the unfolded movable pre-cut section is greater than the maximum rotation diameter B of the pressing spiral section.

[0020] In one embodiment, the rotation diameter A1 of the unfolded active pre-cut portion satisfies 80mm≤A1≤400mm.

[0021] In one embodiment, the rotation diameter A2 of the retracted active pre-cut portion satisfies 30mm≤A2≤70mm.

[0022] In one embodiment, 1.2 ≤ A1 / A2 ≤ 10.

[0023] In one embodiment, the active pre-cutting section is provided with a toothed cutter.

[0024] In one embodiment, the movable pre-cut section is located above the pressing screw section, and the distance between the unfolded movable pre-cut section and the nearest pressing screw section is ≥30mm.

[0025] In one embodiment, the active pre-cut portion is made of metal.

[0026] A juicer, comprising:

[0027] Press barrels; and

[0028] The aforementioned pressing head is rotatably installed inside the pressing barrel, and is used to cooperate with the pressing barrel to press the food to achieve juice extraction.

[0029] In one embodiment, the minimum distance B1 between the unfolded movable pre-cut section and the inner wall of the pressing barrel satisfies 0.3 mm. <B1<30mm。

[0030] In one embodiment, the inner wall of the pressing barrel is provided with a baffle, and the minimum distance B2 between the unfolded movable pre-cutting part and the baffle is 0.3mm. <B2<30mm。

[0031] The pressing head provided in this application has a movable pre-cutting part at the top of its main body for pre-cutting food ingredients. When it is necessary to disassemble or assemble the pressing head relative to the pressing barrel, the movable pre-cutting part can be switched to a retracted state to reduce the rotation diameter of the movable pre-cutting part, thereby reducing the radial dimension of the pressing head and avoiding interference between the pressing head and the inner wall of the pressing barrel. This invention facilitates the disassembly, cleaning, and assembly of the pressing head and the pressing barrel. After the pressing head and pressing barrel are assembled and the juicing operation is started, when the movable pre-cutting part comes into contact with the food, it will automatically switch from a retracted state to an extended state under the force of the food. At this time, the rotation diameter of the extended movable pre-cutting part will increase, thereby effectively pre-cutting the food. The food is fed more smoothly with less residue, allowing the pressing screw to further finely cut and grind the food, preventing the pressing head from stopping abruptly due to the large volume of the food, thus improving the juice yield and juicing efficiency of the pressing head. Therefore, by configuring a movable pre-cutting part at the top of the main body, this application can effectively pre-cut the food while ensuring convenient disassembly and assembly of the pressing head, making the food feed smoother with less residue, and effectively improving the juice yield and juicing efficiency of the pressing head. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 is a cross-sectional view of a juicer in one embodiment;

[0034] Figure 2 is a schematic diagram of the structure of the pressing head in one embodiment;

[0035] Figure 3 is a schematic diagram of the press head shown in Figure 2 in the unfolded and retracted states;

[0036] Figure 4 is a top view of the pressing head shown in Figure 3;

[0037] Figure 5 is a schematic diagram of the structure of the pressing head in another embodiment;

[0038] Figure 6 is a structural schematic diagram of the press head shown in Figure 5 from another perspective;

[0039] Figure 7 is a schematic diagram of the pressing head in another embodiment. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0042] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0043] As shown in Figure 1, this application provides a juicer, which includes a pressing barrel 200 and a pressing head 100. The pressing barrel 200 is used to hold food ingredients, and the pressing head 100 is rotatably mounted inside the pressing barrel 200. The pressing head 100 is used to cooperate with the pressing barrel 200 to press the food ingredients to achieve juicing. Specifically, the food ingredients put into the pressing barrel 200 can come into contact with the pressing head 100 after falling due to gravity and be pressed by the pressing head 100 and the pressing barrel 200 to achieve juicing.

[0044] As shown in Figures 2 and 3, the pressing head 100 includes a main body 110, a pressing screw 120, and a movable pre-cutting part 130. The pressing screw 120 is disposed on the outer side wall of the main body 110. The movable pre-cutting part 130 is movably disposed at the top of the main body 110 to switch between an unfolded state and a retracted state. The rotation diameter of the unfolded movable pre-cutting part 130 is greater than the rotation diameter of the retracted movable pre-cutting part 130. The rotation diameter of the movable pre-cutting part 130 is the radial rotation diameter of the movable pre-cutting part 130 in the main body 110.

[0045] The pressing head 100 provided in this application has a movable pre-cutting part 130 at the top of its main body 110 for pre-cutting food ingredients. When the pressing head 100 needs to be disassembled from the pressing barrel 200, the movable pre-cutting part 130 can be switched to a retracted state to reduce the rotation diameter of the movable pre-cutting part 130, thereby reducing the radial dimension of the pressing head 100 and avoiding interference between the pressing head 100 and the inner wall of the pressing barrel 200. This facilitates the disassembly, cleaning, and assembly of the pressing head 100 and the pressing barrel 200. After the pressing head 100 and the pressing barrel 200 are assembled and the juicing operation is started, when the movable pre-cutting part 130 comes into contact with the food ingredients, it will automatically switch from the retracted state to the extended state under the force of the food ingredients. At this time, the rotation diameter of the extended movable pre-cutting part 130 will increase, thereby effectively pre-cutting the food ingredients. At this point, the food is fed more smoothly with less residue, allowing the pressing screw 120 to further finely cut and grind the food, preventing the pressing head 100 from stopping abruptly due to excessive food volume, thereby improving the juice yield and juicing efficiency of the pressing head 100. Therefore, by configuring a movable pre-cutting part 130 at the top of the main body 110, this application can effectively pre-cut the food while ensuring convenient disassembly and assembly of the pressing head 100, making the food feed smoother with less residue, and effectively improving the juice yield and juicing efficiency of the pressing head 100.

[0046] Referring to Figures 3 and 4, to facilitate the illustration of the position and rotation diameter of the movable pre-cutting section 130 in the unfolded and retracted states, when the movable pre-cutting section 130 is in the unfolded state, it is located in the first position, which is represented by a solid line; when the movable pre-cutting section 130 is in the retracted state, it is located in the second position, which is represented by a dashed line. Circle O1 is a circular area centered on the center of the main body 110, with the rotation diameter of the unfolded movable pre-cutting section 130 as its diameter. Circle O2 is a circular area centered on the center of the main body 110, with the rotation diameter of the retracted movable pre-cutting section 130 as its diameter. Circles O1 and O2 are concentrically arranged, and the diameter of circle O1 is larger than the diameter of circle O2, meaning the rotation diameter of the unfolded movable pre-cutting section 130 is larger than that of the retracted movable pre-cutting section 130. The diameter of rotation.

[0047] As shown in Figure 2, the main body 110 includes a crushing section 112 and a pressing section 114 connected sequentially from top to bottom. A crushing part 140 is provided on the outer wall of the crushing section 112, and a pressing spiral part 120 is provided on the outer wall of the pressing section 114. A movable pre-cutting part 130 is provided at the top of the crushing section 112. The crushing section 112 is used for the initial crushing of the food, ensuring that when the food spirals downwards, only crushing action occurs, preventing the pressing head 100 from stopping abruptly due to excessive food volume. The pressing section 114 is used for further fine pressing of the food. This embodiment separates the crushing process from the juice extraction and residue removal process. During the crushing process, since juice extraction and residue removal are not required, there is no need to install filters or rotating brushes inside the pressing barrel 200. This allows the food inside the pressing barrel 200 to be crushed under the combined action of the pressing barrel 200 and the pressing head 100.

[0048] Furthermore, the movable pre-cutting section 130 at the top of the crushing section 112 can pre-cut the ingredients before they enter the crushing section 112, allowing larger pieces of ingredients to be cut into smaller volumes, thus improving crushing efficiency during subsequent crushing by the crushing section 140. Specifically, the crushing section 140 is located below and adjacent to the movable pre-cutting section 130. Since most of the ingredients will fall automatically due to gravity after being pre-cut by the movable pre-cutting section 130, the placement and proximity of the crushing section 140 to the movable pre-cutting section 130 effectively improves crushing efficiency, thereby effectively improving juicing efficiency and juice yield.

[0049] In one embodiment, the cross-sectional area of ​​the main body 110 gradually increases from the crushing section 112 to the pressing section 114, that is, the main body 110 is generally conical. With the above arrangement, when the pressing head 100 is used in the juicer to crush the food, the food can be crushed more and more, thereby improving the crushing effect of the juicer on the food and increasing the juice yield.

[0050] As shown in Figure 2, in one embodiment, a step 150 is provided at the connection between the crushing section 112 and the pressing section 114, and a pressing spiral portion 120 is provided on the outer wall of both the crushing section 112 and the pressing section 114. Specifically, in order to further improve the juice yield, multiple pressing spiral portions 120 are provided at intervals along the axial direction of the pressing head 100 on the outer wall of both the crushing section 112 and the pressing section 114.

[0051] In one embodiment, the movable pre-cutting portion 130 is slidably engaged with the main body portion 110 to switch between an unfolded state and a retracted state. In another embodiment, the movable pre-cutting portion 130 is rotatably engaged with the main body portion 110 to switch between an unfolded state and a retracted state.

[0052] As shown in Figures 2 and 3, in one embodiment, the main body 110 has a first axis, and the movable pre-cutting part 130 is capable of rotating relative to the main body 110 about a second axis to switch between an unfolded state and a retracted state. The first axis and the second axis are set off-axis. It can be understood that if the first axis and the second axis are set coaxially, the length of the movable pre-cutting part 130 needs to be set longer if a larger rotation diameter is to be obtained after unfolding. Therefore, setting the first axis and the second axis off-axis is to minimize the length of the movable pre-cutting part 130 while ensuring that the movable pre-cutting part 130 has a sufficiently large rotation diameter after unfolding.

[0053] In an optional embodiment, the main body 110 has a first axis, and the movable pre-cut portion 130 is rotatable relative to the main body 110 about a second axis to switch between an unfolded state and a retracted state. The first axis and the second axis are not parallel and do not intersect.

[0054] As shown in Figures 2 and 5, in one embodiment, a rotating shaft 160 is provided at the top of the main body 110. A movable pre-cutting part 130 is rotatably sleeved on the rotating shaft 160, and the movable pre-cutting part 130 can rotate relative to the rotating shaft 160 around the axis of the rotating shaft 160 to switch between an unfolded state and a retracted state. The axis of the rotating shaft 160 is a second axis, and the axis of the rotating shaft 160 is coaxial with the first axis of the main body 110.

[0055] As shown in Figure 2, in an optional embodiment, the axis of the rotating shaft 160 is arranged parallel to the first axis of the main body 110, and the movable pre-cutting part 130 can rotate around the axis of the rotating shaft 160 in a first plane to switch between an unfolded state and a retracted state; wherein, the first plane is a plane perpendicular to the first axis of the main body 110.

[0056] In an optional embodiment, when the axis of the rotating shaft 160 is parallel to the first axis of the main body 110, the movable pre-cutting part 130 includes a rotating part 131 and a cutting part 132. The rotating part 131 is columnar and is rotatably sleeved on the rotating shaft 160. The rotating part 131 and the rotating shaft 160 are coaxially arranged. One end of the cutting part 132 is connected to the rotating part 131, and the other end of the cutting part 132 is suspended and extends away from the rotating part 131. Specifically, the extending direction of the cutting part 132 is perpendicular to the axial direction of the rotating part 131, and the rotating part 131 and the cutting part 132 are integrally formed.

[0057] As shown in Figures 5 and 6, in an optional embodiment, the axis of the rotating shaft 160 is perpendicular to the first axis of the main body 110, and the movable pre-cutting part 130 can rotate around the axis of the rotating shaft 160 in the first vertical plane to switch between the unfolded state and the retracted state; wherein, the first vertical plane is a vertical plane parallel to the first axis of the main body 110.

[0058] In an optional embodiment, when the axis of the rotating shaft 160 is parallel to the first axis of the main body 110, the movable pre-cutting part 130 includes a rotating part 131 and a cutting part 132. Both the rotating part 131 and the cutting part 132 are rod-shaped. One end of the rotating part 131 is rotatably sleeved on the rotating shaft 160, and the cutting part 132 is connected to the end of the rotating part 131 away from the rotating shaft 160. The cutting part 132 extends in a direction away from the rotating part 131, and an angle is formed between the cutting part 132 and the rotating part 131. The rotating part 131 and the cutting part 132 can be integrally formed. Further, both the rotating part 131 and the cutting part 132 are provided with weight-reducing holes 133.

[0059] As shown in Figure 7, in an optional embodiment, a ball head 162 is provided at the top of the main body 110, and the movable pre-cutting part 130 is rotatably sleeved on the ball head 162, and the movable pre-cutting part 130 can rotate relative to the ball head 162 to switch between an unfolded state and a retracted state. In an optional embodiment, the ball head 162 can be a hemispherical head. Further, when the movable pre-cutting part 130 is rotatably connected to the main body part 110 through the ball head 162, the movable pre-cutting part 130 includes a rotating part 131 and a cutting part 132. Both the rotating part 131 and the cutting part 132 are rod-shaped. One end of the rotating part 131 is rotatably sleeved on the ball head 162. The cutting part 132 is connected to the end of the rotating part 131 away from the ball head 162. The cutting part 132 extends in a direction away from the rotating part 131. An angle is formed between the cutting part 132 and the rotating part 131. The rotating part 131 and the cutting part 132 can be integrally formed.

[0060] In an optional embodiment, when the active pre-cutting part 130 is in the unfolded state or the retracted state, the center of the active pre-cutting part 130 is located on one side of the active center of the active pre-cutting part 130.

[0061] Understandably, after the juicer finishes working, the pressing head 100 usually needs to be disassembled and cleaned. This requires switching the movable pre-cutting part 130 back to the retracted state. If the rotation angle of the movable pre-cutting part 130 is too large, it will not be conducive to the automatic return of the movable pre-cutting part 130. In an optional embodiment, in order to improve the reset efficiency of the movable pre-cutting part 130, the movable pre-cutting part 130 is rotatably engaged with the main body 110, and the rotation angle of the movable pre-cutting part 130 is ≤180°.

[0062] In one embodiment, to improve the ease of resetting the movable pre-cutting part 130 and facilitate the disassembly and cleaning of the pressing head 100, a resetting mechanism is provided between the movable pre-cutting part 130 and the main body 110. The resetting mechanism drives the movable pre-cutting part 130 to rotate and reset, so that the movable pre-cutting part 130 automatically switches from an unfolded state to a retracted state. In an optional embodiment, the resetting mechanism may include a torsion spring, silicone, a sliding groove, or a hinge mechanism, etc. In an optional embodiment, when the movable pre-cutting part 130 is rotatably connected to the main body 110 via a rotating shaft 160, the resetting mechanism includes a torsion spring, which is wound around the rotating shaft 160 and connected to the movable pre-cutting part 130.

[0063] Understandably, if the rotation angle of the movable pre-cutting part 130 is too large, it will increase the difficulty of resetting the movable pre-cutting part 130 and increase the instability of the structure. As shown in Figure 2, in one embodiment, a limiting mechanism 170 is provided between the movable pre-cutting part 130 and the main body part 110 to limit the rotation angle of the movable pre-cutting part 130 relative to the main body part 110. In an optional embodiment, the limiting mechanism 170 may include a limiting block or a limiting groove.

[0064] As shown in Figure 2, in an optional embodiment, when the axis of the rotating shaft 160 is parallel to the first axis of the main body 110, the limiting mechanism 170 includes a limiting block 172. The limiting block 172 is disposed at the top of the main body 110 and surrounds the outer periphery of the movable pre-cutting part 130. The limiting block 172 can abut against the movable pre-cutting part 130 to limit the rotation angle of the movable pre-cutting part 130 relative to the main body 110. Specifically, when the axis of the rotating shaft 160 is parallel to the first axis of the main body 110, the limiting block 172 surrounds the outer periphery of the rotating part 131. The limiting block 172 can abut against the cutting part 132 to limit the rotation angle of the movable pre-cutting part 130 relative to the main body 110.

[0065] As shown in Figures 5 and 6, in an optional embodiment, when the axis of the rotating shaft 160 is perpendicular to the first axis of the main body 110, the limiting mechanism 170 includes a limiting groove 174. The limiting groove 174 is disposed at the top of the main body 110 and extends along the rotation direction of the movable pre-cutting part 130. The movable pre-cutting part 130 has a limiting post 134, which is rotatably limited within the limiting groove 174 to limit the rotation angle of the movable pre-cutting part 130 relative to the main body 110. Specifically, when the axis of the rotating shaft 160 is perpendicular to the first axis of the main body 110, a stop 180 is provided at the top of the main body 110, and the stop 180 extends away from the top of the main body 110. A limiting groove 174 is provided at the top of the stop 180, the rotating shaft 160 is provided at the bottom of the stop 180, and a limiting post 134 protrudes from the rotating part 131. The limiting post 134 is specifically provided in the middle of the rotating part 131, and the axial direction of the limiting post 134 is parallel to the axial direction of the rotating shaft 160. The limiting post 134, the rotating part 131, and the cutting part 132 can be integrally formed.

[0066] It is understandable that, in order to achieve a larger diameter using a low-powered main unit and reduce product costs, in an optional embodiment, when the pressing head 100 rotates, the rotation diameter A1 of the unfolded movable pre-cutting portion 130 is greater than the maximum rotation diameter B of the pressing spiral portion 120; preferably, the rotation diameter A1 of the unfolded movable pre-cutting portion 130 satisfies 80mm≤A1≤400mm. Further, it is understood that during the disassembly and assembly of the pressing head 100, the inner wall of the pressing barrel 200 should not interfere with the pressing head 100. Therefore, the range of the rotation diameter A2 of the retracted movable pre-cutting portion 130 essentially limits the range of the pressing diameter of the pressing chamber of the pressing barrel 200. In order to press larger ingredients with a smaller pressing chamber, thereby reducing the load on the pressing head 100, the rotation diameter A2 of the retracted movable pre-cutting portion 130 satisfies 30mm≤A2≤70mm; preferably, 1.2≤A1 / A2≤10.

[0067] It is understandable that after the movable pre-cutting part 130 cuts the food, the food usually enters the pressing chamber through the gap between the movable pre-cutting part 130 and the nearest pressing screw part 120. If the gap is too small, it will be difficult to feed the food. In one embodiment, in order to improve the feeding efficiency, the movable pre-cutting part 130 is located above the screw pressing part, and the distance between the unfolded movable pre-cutting part 130 and the nearest pressing screw part 120 is ≥30mm.

[0068] In one embodiment, to ensure that the movable pre-cutting part 130 can reach the edge of the pressing barrel 200 as much as possible, while also ensuring the strength and cutting effect of the movable pre-cutting part 130, the minimum distance B1 between the unfolded movable pre-cutting part 130 and the inner wall of the pressing barrel 200 is 0.3mm. <B1<30mm。

[0069] As shown in Figure 1, in one embodiment, the inner wall of the pressing barrel 200 is provided with a baffle 220. The main function of the baffle 220 is to cooperate with the movable pre-cutting part 130 to cut the material. The minimum distance B2 between the unfolded movable pre-cutting part 130 and the baffle 220 satisfies 0.3mm < B2 < 30mm, so as to ensure the baffle effect and efficiency of the baffle 220.

[0070] In one embodiment, the movable pre-cutting part 130 is made of metal to improve its strength. In another embodiment, the movable pre-cutting part 130 is provided with a toothed cutter to facilitate cutting the food. Specifically, the toothed cutter is located on the outer edge of the cutting part 132.

[0071] In one embodiment, the free end of the movable pre-cutting section 130 is provided with a smooth transition surface. With this configuration, when the pressing head 100 is disassembled or assembled relative to the pressing barrel 200, when the inner wall of the pressing barrel 200 comes into contact with the movable pre-cutting section 130, the two parts can rely on the action and reaction forces between the inner wall of the pressing barrel 200 and the smooth transition surface of the movable pre-cutting section 130 to push the movable pre-cutting section 130 in a retracting direction, thus avoiding interference between the inner wall of the pressing barrel 200 and the movable pre-cutting section 130. Specifically, the smooth transition surface is located at the end of the cutting section 132 away from the rotating section 131.

[0072] As shown in Figures 1 and 2, the bottom of the pressing barrel 200 further includes a limiting platform 240, which abuts against the frustum 190 at the bottom of the pressing head 100, thereby restricting the upward movement of the pressing head 100, ensuring pressing accuracy, and improving juice yield and extraction efficiency. The limiting platform 240 is distributed circumferentially around the pressing barrel 200, and the frustum 190 is located at the bottom of the main body 110 and distributed circumferentially around the main body 110.

[0073] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A pressing head, characterized in that, include: Main body; The pressing spiral section is disposed on the outer side wall of the main body; as well as The movable pre-cutting part is movably disposed at the top of the main body to switch between an unfolded state and a retracted state. The rotation diameter of the movable pre-cutting part after unfolding is greater than the rotation diameter of the movable pre-cutting part after retracting. The rotation diameter of the movable pre-cutting part is the radial rotation diameter of the movable pre-cutting part in the main body.

2. The pressing head according to claim 1, characterized in that, The main body includes a crushing section and a pressing section connected sequentially from top to bottom. The crushing section has a crushing part on its outer side wall, the pressing section has a pressing spiral part on its outer side wall, and the top of the crushing section has a movable pre-cutting part.

3. The pressing head according to claim 1, characterized in that, The movable pre-cutting part slides with the main body to switch between an unfolded state and a retracted state; or, the movable pre-cutting part rotates with the main body to switch between an unfolded state and a retracted state.

4. The pressing head according to claim 1, characterized in that, The main body has a first axis, and the movable pre-cutting part can rotate relative to the main body about a second axis to switch between an unfolded state and a retracted state. The first axis and the second axis are arranged opposite to each other.

5. The pressing head according to claim 1, characterized in that, The main body has a first axis, and the movable pre-cutting part can rotate relative to the main body about a second axis to switch between an unfolded state and a retracted state. The first axis and the second axis are not parallel and do not intersect.

6. The pressing head according to claim 1, characterized in that, The free end of the active pre-cut section is provided with a smooth transition surface.

7. The pressing head according to claim 1, characterized in that, When the movable pre-cutting part is in the unfolded or retracted state, the center of the movable pre-cutting part is located on one side of the movable center of the movable pre-cutting part.

8. The pressing head according to claim 1, characterized in that, The top of the main body is provided with a rotating shaft, the movable pre-cutting part is rotatably sleeved on the rotating shaft, and the movable pre-cutting part can rotate relative to the rotating shaft around the axis of the rotating shaft.

9. The pressing head according to claim 1, characterized in that, The movable pre-cutting part is rotatably engaged with the main body part, and the rotation angle of the movable pre-cutting part is ≤180°.

10. The pressing head according to claim 1, characterized in that, A reset mechanism is provided between the active pre-cutting part and the main body part.

11. The pressing head according to claim 1, characterized in that, A limiting mechanism is provided between the active pre-cutting part and the main body part.

12. The pressing head according to claim 1, characterized in that, When the pressing head rotates, the rotation diameter A1 of the unfolded movable pre-cut section is greater than the maximum rotation diameter B of the pressing spiral section.

13. The pressing head according to claim 1, characterized in that, The rotation diameter A1 of the unfolded active pre-cut part satisfies 80mm≤A1≤400mm.

14. The pressing head according to claim 13, characterized in that, The rotation diameter A2 of the retracted movable pre-cut section satisfies 30mm≤A2≤70mm.

15. The pressing head according to claim 14, characterized in that, 1.2≤A1 / A2≤10.

16. The pressing head according to claim 1, characterized in that, The active pre-cutting section is equipped with a toothed cutter.

17. The pressing head according to claim 1, characterized in that, The movable pre-cutting section is located above the pressing screw section, and the distance between the unfolded movable pre-cutting section and the nearest pressing screw section is ≥30mm.

18. The pressing head according to claim 1, characterized in that, The active pre-cut section is made of metal.

19. A juicer, characterized in that, include: Press barrel; as well as The pressing head as described in any one of claims 1 to 18, wherein the pressing head is rotatably mounted inside the pressing barrel, and the pressing head is used to cooperate with the pressing barrel to press the food to achieve juicing.

20. The juicer according to claim 19, characterized in that, The minimum distance B1 between the unfolded movable pre-cut section and the inner wall of the pressing barrel satisfies 0.3mm < B1 < 30mm.

21. The juicer according to claim 19, characterized in that, The inner wall of the pressing barrel is provided with a baffle, and the minimum distance B2 between the unfolded movable pre-cutting part and the baffle satisfies 0.3mm < B2 < 30mm.

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