Squeezing head and juicer

Abstract

The squeezing head comprises a main body part, a main body part and a movable pre-cutting part, a squeezing spiral part is arranged on the outer side wall of the main body part, and the movable pre-cutting part is movably arranged at the top end of the main body part so as to be switched between an unfolded state and a folded state; the rotating diameter of the unfolded movable pre-cutting part is larger than that of the folded movable pre-cutting part, and the rotating diameter of the movable pre-cutting part is the rotating diameter of the movable pre-cutting part in the radial direction of the main body part. According to the squeezing head, the movable pre-cutting part is arranged at the top end of the main body part, so that food materials can be effectively pre-cut on the premise that the squeezing head is convenient to disassemble and assemble, feeding of the food materials is smoother, residues are few, and the juice yield and the juice squeezing efficiency of the squeezing head are effectively improved.

Description

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, which improves pressing efficiency when the pressing screw is used for pressing. At the same time, in order to ensure that the cutting section has a large sweeping diameter, the cutting section is usually set to be relatively large. This setting often causes 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. Utility Model Content

[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 facilitates the disassembly, cleaning, and assembly of the pressing head and the pressing barrel. After the pressing head and the pressing barrel are assembled and the juicing operation is started, when the movable pre-cutting part comes into contact with the food ingredients, the movable pre-cutting part will automatically switch from the retracted state to the extended state under the force of the food ingredients. At this point, the rotation diameter of the movable pre-cutting part will increase after unfolding, 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 excessive food volume, 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 This is a cross-sectional view of a juicer in one embodiment;

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

[0035] Figure 3 for Figure 2 The diagram shows the structure of the pressing head in its extended and retracted states.

[0036] Figure 4 for Figure 3 A top view of the press head shown;

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

[0038] Figure 6 for Figure 5 A schematic diagram of the press head from another perspective;

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

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

[0041] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment 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 indicator will also change accordingly.

[0042] Furthermore, the use of terms such as "first" and "second" in this utility model 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 utility model.

[0043] like Figure 1As shown, 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] like Figure 2 and Figure 3 As shown, 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 extended state and a retracted state. The rotation diameter of the extended 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 it is necessary to disassemble or assemble the pressing head 100 relative to 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, avoiding interference between the pressing head 100 and the inner wall of the pressing barrel 200, and facilitating disassembly, cleaning, and assembly between the pressing head 100 and the pressing barrel 200. After the assembly between the pressing head 100 and the pressing barrel 200 is completed and the juicing operation is started, when the movable pre-cutting part 130 comes into contact with the food ingredients, the movable pre-cutting part 130 will retract under the force of the food ingredients. The device automatically switches from the initial state to the extended state. At this time, the rotation diameter of the extended movable pre-cutting part 130 increases, which can effectively pre-cut the food. The food is fed more smoothly with less residue, allowing the pressing spiral part 120 to further cut and grind the food. This prevents the pressing head 100 from stopping abruptly due to the large volume of the food, thereby improving the juice yield and juicing efficiency of the pressing head 100. Therefore, by configuring the movable pre-cutting part 130 at the top of the main body 110, this application can effectively pre-cut the food while ensuring the convenient disassembly and assembly of the pressing head 100, so that the food is fed more smoothly with less residue, effectively improving the juice yield and juicing efficiency of the pressing head 100.

[0046] refer to Figure 3 and Figure 4To facilitate the demonstration of the position and rotation diameter of the movable pre-cutting part 130 in the unfolded and retracted states, when the movable pre-cutting part 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 part 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 part 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 part 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 part 130 is larger than the rotation diameter of the retracted movable pre-cutting part 130.

[0047] like Figure 2 As shown, 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, allowing 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 when the crushing section 140 crushes them. 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] like Figure 2 As shown, 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] like Figure 2 and Figure 3 As shown, in one embodiment, the main body 110 has a first axis, and the movable pre-cutting part 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 arranged oppositely. It can be understood that if the first axis and the second axis are coaxial, the length of the movable pre-cutting part 130 needs to be longer if a larger rotation diameter is to be obtained after unfolding. Therefore, the first axis and the second axis are arranged oppositely to ensure that the movable pre-cutting part 130 has a sufficiently large rotation diameter after unfolding, while minimizing the length of the movable pre-cutting part 130.

[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] like Figure 2 and Figure 5 As shown, in one embodiment, a rotating shaft 160 is provided at the top of the main body 110, and a movable pre-cutting part 130 is rotatably sleeved on the rotating shaft 160. 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] like Figure 2 As shown, 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 arranged 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. The rotating part 131 and the cutting part 132 are integrally formed.

[0057] like Figure 5 and Figure 6 As shown, 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 an unfolded state and a 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] like Figure 7As shown, in an optional embodiment, a ball head 162 is provided at the top of the main body 110, and a movable pre-cutting part 130 is rotatably sleeved on the ball head 162. 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 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, and 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, 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.

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

[0061] Understandably, after the juicer finishes working, the pressing head 100 usually needs to be disassembled and cleaned. This requires the movable pre-cutting part 130 to be switched 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, such as... Figure 2 As shown, in one embodiment, a limiting mechanism 170 is provided between the movable pre-cutting portion 130 and the main body portion 110 to limit the rotation angle of the movable pre-cutting portion 130 relative to the main body portion 110. In an optional embodiment, the limiting mechanism 170 may include a limiting block or a limiting groove.

[0064] like Figure 2 As shown, 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] like Figure 5 and Figure 6 As shown, 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 can be understood that in order to enable the juicer to obtain a larger diameter with a small-power power main unit and reduce the product cost, in an optional embodiment, when the pressing head 100 rotates, the rotation diameter A1 of the unfolded movable pre-cutting part 130 is greater than the maximum rotation diameter B of the pressing screw part 120; preferably, the rotation diameter A1 of the unfolded movable pre-cutting part 130 satisfies 80mm ≤ A1 ≤ 400mm. Further, it can be understood that when the pressing head 100 is disassembled and assembled, the inner wall of the pressing barrel 200 cannot interfere with the pressing head 100. Therefore, the range of the rotation diameter A2 of the retracted movable pre-cutting part 130 basically limits the range of the pressing diameter of the pressing cavity of the pressing barrel 200. In order to press larger food materials with a smaller pressing cavity and thus reduce the load of the pressing head 100, the rotation diameter A2 of the retracted movable pre-cutting part 130 satisfies 30mm ≤ A2 ≤ 70mm; preferably, 1.2 ≤ A1 / A2 ≤ 10.

[0067] It can be understood that after the movable pre-cutting part 130 cuts the food materials, the food materials usually enter the pressing cavity through the gap between the movable pre-cutting part 130 and the pressing screw part 120 closest to it. If this gap is too small, it is not conducive to feeding; in an embodiment, in order to improve the feeding efficiency, the movable pre-cutting part 130 is located above the spiral pressing part, and the distance between the unfolded movable pre-cutting part 130 and the pressing screw part 120 closest to it is ≥ 30mm.

[0068] In an embodiment, in order to ensure that the movable pre-cutting part 130 can sweep to the edge of the pressing barrel 200 as much as possible, and at the same time ensure 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 satisfies 0.3mm < B1 < 30mm.

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

[0070] In an embodiment, the movable pre-cutting part 130 is made of metal to improve the strength of the movable pre-cutting part 130. In an embodiment, in order to facilitate cutting of food materials, the movable pre-cutting part 130 is provided with tooth-shaped cutters. Specifically, the tooth-shaped cutters are provided 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 them. Specifically, the smooth transition surface is located at the end of the cutting section 132 away from the rotating section 131.

[0072] like Figure 1 and Figure 2 As shown, 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 along the pressing barrel 200, and the frustum 190 is located at the bottom of the main body 110 and distributed circumferentially along the main body 110.

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

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 is 0.3mm. <B2<30mm。

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