WO2023137843A1

WO2023137843A1 - Hand-operated juicer

Info

Publication number: WO2023137843A1
Application number: PCT/CN2022/080054
Authority: WO
Inventors: 金人昊
Original assignee: 金人昊
Priority date: 2022-01-18
Filing date: 2022-03-10
Publication date: 2023-07-27
Also published as: CN116491804A

Abstract

A hand-operated juicer, comprising a shell (1); a juicing head (2), the outer surface of the juicing head (2) being an arc-shaped surface and being provided with a plurality of outer protruding ribs (21), and the top of the juicing head (2) being transversely provided with an insertion rod (22) for hanging a fruit; a juicing cover (3) connected to the shell (1), the juicing cover (3) being provided with an arc-shaped squeezing cavity (31) which is recessed inwards, and the juicing head (2) being accommodated in the squeezing cavity (31); a transmission screw (5) which can rotate about the axis of the transmission screw (5) and can move back and forth, the rear end of the transmission screw (5) being connected to a rocking handle (6), and the juicing head (2) being connected to the front end of the transmission screw (5) and can rotate along with the transmission screw (5) and move back and forth; and a juice cup (4) for storing fruit juice. The juicing process relates to rotary squeezing, juicing is more sufficient, and the juice yield is high. The juicing path is transversely arranged, a labor-saving lever is formed between the rocking handle (6) and the transmission screw (5), and the juicing operation is labor-saving. During juicing, the fruits are hung on the insertion rod (22), the peels face outward, fixation of the fruits is completed, the fruits do not need to be peeled, and the juicing operation is more convenient.

Description

A hand-cranked juicer

technical field

The invention relates to a juice extractor, in particular to a hand-operated juice extractor.

Background technique

A juicer is a machine that can quickly squeeze fruits and vegetables into vegetable juice. It is mainly divided into two types according to different powers: electric type and manual type.

The electric squeezer is driven by a motor with a built-in screw, and the juice is squeezed through the high-speed rotating built-in screw. For example, the Chinese invention patent application "Juicer" with the application number CN201710466647.7 (the announcement number is CN107149380A) discloses such a juicer. The head is installed on the top of the screw, the juice cup is installed on the casing, the motor is installed in the casing and moves up and down in the casing, a sleeve is arranged on the periphery of the screw, and a nut is movable in the sleeve, but the nut cannot rotate with the sleeve. This kind of juice extractor is fast and efficient, but it is expensive and inconvenient to clean, and it needs to remove the peel and squeeze the juice again. The operation is time-consuming and laborious, and it is also very time-consuming to clean after each use.

The manual juicer mainly squeezes the juice, as long as it is applied to squeeze fruits and vegetables with more moisture such as oranges, tangerines, watermelons, tomatoes, etc., such as a Chinese utility model patent "A Juicer" with the application number CN202010812108. The supporting frames are installed on both sides of the base respectively. The supporting frame is respectively hinged with the pressing bar and the I-shaped frame, the transition connecting rod is hinged with the I-shaped frame, the lower pressing pin is hinged with the I-shaped frame, the lower pressing pin is threaded with the pressing surface, the pressing surface is in contact with the pressing cup, and the pressing cup is buckled in the pressing cup bracket. The pressing cup matches the shape of the pressing surface. When in use, the fruit and vegetable are placed between the two extrusion heads, and the user pushes the pressure rod with his hand to squeeze out the juice in the fruit and vegetable with the strength of his hand. The juice yield is low, and the current manual juice squeezing mechanism is very laborious to use, and those with less strength cannot use it.

In the vertical juicing path, the juice will touch the peel when it is full, and the peel has a lot of contact with the outside world and is relatively dirty. The full juice will be polluted by the peel.

For this reason, existing manual juice extractor can also do further improvement.

Contents of the invention

The technical problem to be solved by the present invention is to provide a hand-cranked juice extractor with reasonable structural layout, high juice yield and labor-saving operation, especially suitable for extracting juice from oranges, tangerines, lemons and other fruits.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a hand-cranked juice extractor, characterized in that it includes a casing; a juice extractor, the outer surface of the juice extractor is arc-shaped and provided with a plurality of convex ribs, the top of the juice extractor is horizontally provided with inserting rods for mounting fruits; The end is connected with the rocking handle, and the juice extraction head is connected with the front end of the transmission screw and can rotate with it and move back and forth; it is a juice cup for storing juice.

In the normal use state of the juice extractor, the insertion rod and the transmission screw are both arranged horizontally, or horizontally, and the above-mentioned forward and backward movement is the movement in the transverse direction.

As a further improvement, the inner wall of the pressing chamber is provided with a plurality of inner ribs extending from the middle of the pressing chamber to the edge. Normally, the internal convex ribs are radially distributed on the inner wall of the squeezing chamber. The setting of the internal convex ribs can increase the friction between the squeezing chamber and the outer peel of the fruit, so as to ensure that the peel will not rotate relative to the squeezing chamber as much as possible, so that the juicer head can better rotate around its own axis relative to the fruit, and the juicing effect is better. There are certain gaps between the plurality of inner convex ribs arranged at intervals, which provides convenience for setting other structures on the juice extraction cover.

In order to further enhance the juicing effect, the above-mentioned inner ribs are provided with thorns. The thorns can better hook the peel, further ensuring that the peel will not rotate relative to the pressing chamber.

As an improvement, a transition rib is provided between two adjacent inner ribs. The length of the transitional ribs is usually shorter than that of the inner ribs. The setting of the transitional ribs can strengthen the strength of the juicing cover, and can further increase the friction between the squeezing chamber and the outer peel of the fruit.

As a further improvement, the above-mentioned juice extraction cover is hinged on the casing, and when the juice extraction cover is flipped open, the end of the insertion rod passes through the chute between two adjacent inner ribs and can slide out of the chute. The chute can be opened separately on the juicing cover. Of course, the simplest solution is that the chute is surrounded by two adjacent inner ribs, so there is no need to dig out another chute; there is also a lock between the juicer cover and the casing to lock the juicer cover in the closed position. The juicing cover is hinged on the case, making it easier to open and close the juicing cover. Combined with the lock structure, it can securely fix the juicing cover and the case to ensure a complete and reliable juicing space. In view of the horizontal operation of the juice extractor as a whole, the insertion rod and the transmission screw are arranged horizontally, so the insertion rod needs a certain length, otherwise the fruit cannot be mounted, and another new problem has arisen, that is, when the juice extraction cover is flipped open, the longer insertion rod will always collide with the inner wall of the squeezing cavity and thus prevent the rotation of the juice extraction cover.

Preferably, there is a certain distance between the inner ends of the inner ribs and the center point of the pressing chamber, so that the inner ends of each inner rib enclose an accommodating cavity, and the accommodating cavity is used to accommodate the end of the insertion rod. The accommodating cavity can accommodate the end of the insertion rod, so that the insertion rod can be made as long as possible. The longer the insertion rod, the more convenient it is to firmly position the fruit on the juice extraction head, and it also prevents the insertion rod from breaking the juice extraction cover during the juicing process.

If the distance that the drive screw drives the juicer head to move forward is too large, the juicer head will swell and break the juicer cover, but if the distance that the juicer head moves forward is too short, it will lead to insufficient juice extraction. This structure forms an elastic connection between the juicer head and the drive screw. When the distance between the juicer head and the juicer cover is too close, the gap is too small, and the interaction force is too large during the working process, the juicer head will overcome the elastic force of the elastic parts and move back and retract relative to the drive screw, avoiding further extrusion of the juicer head towards the juicer cover, resulting in bursting of the juicer cover and increased extrusion force. This not only ensures the service life of the juicer, but also makes the operator feel easy to operate and labor-saving no matter whether it is in the previous stage of juicing or the latter stage. , when the juicing head cannot move further, the drive screw will not be finally restrained and will not move forward relative to the casing. This constraint may be that the screw thread between the drive screw and the casing no longer exists, or the drive screw is restricted by the casing and cannot continue to move forward. Elastic parts can be springs, shrapnel, torsion springs, rubber pads, air compression pistons, hydraulic pistons, foams, and many other materials and components that can produce deformation.

As an option, there is a concave cavity inside the juice extraction head, and the elastic member is arranged in the concave cavity and acts on the driving screw.

Specifically, the above-mentioned concave cavity is bounded by a connector, and the key groove fits between the connector and the cavity and the two can slide back and forth relative to each other. The front end of the transmission screw is inserted into the connector, and the elastic member acts on the connector. This structure is convenient for connecting the juice extraction head and the driving screw through the elastic member.

As an option, the above-mentioned elastic component is located between the juice extraction head and the transmission screw, one end of the elastic component acts on the juice extraction head, and the other end of the elastic component acts on the transmission screw.

Alternatively, the drive screw includes a front section and a rear section, the front section and the rear section can slide relative to each other, and the elastic member acts on the front section and the rear section of the drive screw at the same time. In this structure, the elastic member is arranged on the transmission screw, so that an elastic connection is formed between the juice extraction head and the transmission screw.

As an improvement, the above-mentioned protruding ribs extend from the top of the juice extraction head to the edge of the arc surface, and there is a recess between the end of the protruding ribs close to the insertion rod and the insertion rod. This structure can better ensure that the protruding tendons penetrate into the pulp, which facilitates the advancement of the juice head during the juicing process, and also ensures that the fruit is more firmly fixed on the juice head.

A further improvement includes a clip that can slide left and right, and the clip has a large hole and a small hole that are connected to each other; when the transmission screw rotates to extract juice, the transmission screw passes through the small hole, and the hole wall of the small hole snaps into the thread groove of the drive screw to achieve thread fit; when the drive screw moves backward, the drive screw can pass through the large hole and the hole wall of the large hole cannot be stuck in the thread groove of the transmission threaded rod. This design enables the juice extraction head to quickly retreat and reset with the transmission screw for the next juice extraction. When quickly retreating, apply a force to the clip, and drive the clip to move in a direction perpendicular to the axis of the drive screw (i.e. the left and right direction). The wall of the hole is snapped into the thread groove of the transmission screw to realize thread fit, so that the rotation of the screw can drive the juice extraction head to move forward while rotating. And when the juice extraction head is at the most forward position, it is more convenient to take off the fruit that has been squeezed, and it is also more convenient to install the fruit to be squeezed on the juice extraction head.

In order to facilitate the movement of the card, one end of the card is connected to the button on the casing, and the other end of the card is provided with a spring that keeps the card moving toward the button. The spring is set so that after the external force disappears, the clip is automatically reset, so that the transmission screw and the clip form a thread fit relationship.

Preferably, there is a polished rod section on the drive screw at the rear side of the clip. When the drive screw moves forward to the matching position between the clamp and the polished rod, the threaded connection between the drive screw and the clamp disappears. At this time, the drive screw is only idling, that is, the rotation of the drive screw will not move forward relative to the casing, so as to prevent the juicer head from moving too far forward and squeezing the juicer cover.

Preferably, the small hole is an arc-shaped slot, the large hole is a rectangular hole, and the arc-shaped slot is located on a side wall of the rectangular hole. The arc-shaped card slot can better form a thread transmission cooperation relationship with the thread groove, and the rectangular hole has a larger space. When the transmission screw is located in the rectangular hole, the resistance of the transmission screw is smaller, and the transmission screw can retreat more easily.

For the convenience of taking the juice, the above-mentioned juice cup is inserted in the lower part of the casing. The lower part of the casing is provided with a cup inlet for the juice cup to enter and exit the cavity. The lower part of the squeeze chamber has an inclined drainage surface that guides the juice downward to the juice cup. A lock that locks the juice squeeze cover in a closed position is provided between the juice squeeze cover and the cabinet. The setting of the inclined drainage surface can better introduce the juice into the juice cup.

As a further improvement, a shaft sleeve is fixed in the casing, and the transmission screw is installed in the shaft sleeve. A mounting box is also fixed in the casing. The buttons, clips, and springs are all arranged in the mounting box, and the shaft sleeve passes through the mounting box. There is a gap for the clip to enter on the shaft sleeve. The shaft sleeve supports the transmission screw to ensure that the shaft sleeve is not easy to move and the transmission is more stable. The installation box provides a suitable installation position for the buttons, clips, and springs.

Compared with the prior art, the present invention has the advantages that: the juice extractor is powered by hand, which is cheaper than the electric juice extractor; the setting of the insert rod can better mount the fruit on the juice extraction head; when extracting juice, the drive screw is driven by the crank handle, and under the cooperation of the threads, the transmission screw moves forward while rotating, driving the juice extraction head to move closer to the juice extraction cover while rotating; Compared with the conventional juicing path, the squeezed juice flows directly downward into the juice cup without polluting the juice. A labor-saving lever is formed between the crank handle and the transmission screw, which saves effort in the juicing operation; the elastic parts set in the juicer make the juicing operation more labor-saving and light, and can ensure a longer service life of the juicer; when juicing, cut oranges, tangerines, and lemons in half, and then mount the pulp on the insertion rod. The operation is more convenient.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention (the juice extraction cover is opened);

Fig. 2 is a three-dimensional structural schematic diagram of an embodiment of the present invention (juicing lid closed state);

Fig. 3 is a sectional view along the height direction of Fig. 2;

Fig. 4 is a three-dimensional structural schematic diagram of an embodiment of the present invention (the juicing cover is closed and the juicing head moves backward);

Fig. 5 is a sectional view along the height direction of Fig. 4;

Fig. 6 is a cross-sectional view along the front and rear directions of Fig. 2;

Fig. 7 is a schematic diagram of the hole wall of the small hole of the clip in the embodiment of the present invention snapping into the thread groove of the drive screw;

Fig. 8 is a schematic diagram of the transmission screw located in the large hole of the clip in the embodiment of the present invention;

Fig. 9 is a three-dimensional structural schematic diagram of an embodiment of the present invention (the juice cup is taken out);

Fig. 10 is an exploded schematic view of the drive screw connected to the juice extraction head in the embodiment of the present invention;

Fig. 11 is a three-dimensional schematic view of the clip in the embodiment of the present invention;

Fig. 12 is a three-dimensional schematic diagram of a juicer cover in an embodiment of the present invention;

Fig. 13 is a three-dimensional schematic diagram of a shaft sleeve in an embodiment of the present invention;

Fig. 14 is another arrangement of elastic components according to the embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1-14, it is a preferred embodiment of the present invention.

A hand juicer, comprising

The casing 1 has an inner cavity, and the bottom of the casing 1 is provided with a suction cup, which is convenient for firm fixing with the table top.

The juicer head 2 and the juicer cover 3 are hinged on the front opening 12 of the casing 1, and there is a lock 35 between the juicer cover 3 and the casing to lock the juicer cover 3 in a closed position. There are recesses 23 between the rods 22 .

The juice extraction cover 3 connected to the casing 1 has an arc-shaped concave compression cavity 31 , and the juice extraction head 2 can be accommodated in the compression cavity 31 .

The drive screw 5 that can rotate around its own axis and move back and forth, the rear end of the drive screw 5 is connected with the rocking handle 6, and the juice extraction head 2 is connected with the front end of the drive screw 5 and can rotate and move back and forth with it.

The juice cup 4 inserted in the lower part of the casing 1 . The lower part of the casing 1 is provided with a cup inlet 11 for the juice cup to enter and exit the inner cavity of the casing, and the lower part of the squeezing chamber 31 has a drainage surface 37 for guiding the juice obliquely downward to the juice cup 4 .

The inner wall of the pressing chamber 31 is provided with a plurality of inner convex ribs 32 extending from the middle of the pressing chamber 31 to the edge. The inner ribs 32 are in an arc shape matching the inner surface of the press chamber 31 and distributed radially. Between two adjacent inner ribs 32 there is a transition rib 34 , the length of the transition rib 34 is shorter than that of the inner ribs 32 . Both the inner rib 32 and the transition rib 34 are provided with thorns 33 . Two adjacent inner ribs 32 enclose a chute 321 , and when the juice extraction cover 3 is flipped open, the end of the insertion rod 22 passes through the chute 231 between the adjacent two inner ribs 32 and can slide out from the chute 321 .

There is a certain distance between the inner ends of the inner ribs 32 and the center of the pressing chamber 31 , so that the inner ends of the inner ribs 32 enclose a receiving chamber 36 for receiving the end of the insertion rod 22 .

It also includes an elastic component 7, which enables the outer surface of the juice extraction head 2 to retract toward the rear side when it receives a pressing force from the front side. Specifically, a concave cavity 25 is provided at the rear end of the juice extraction head 2, and a connection head 24 that can slide back and forth relative to the juice extraction head 2 is restrained in the cavity 25. The keyway fit between the connection head 24 and the cavity 25 on the juice extraction head 2 enables the two to rotate synchronously and the two can slide relative to each other. The elastic member 7 directly acts on the connection head 24 to keep the connection head 24. The juice head 2 rotates together, and the elastic member 7 then acts indirectly on the transmission screw rod 5 .

As shown in Figure 14, the elastic member 7 can also adopt the following structure. The transmission screw 5 includes a front section 5a and a rear section 5b. The front section 5a is inserted into the juice extraction head 2. The front section 5a and the rear section 5b are inserted into a transmission sleeve 5c, which can slide relatively and rotate together with the transmission sleeve 5c.

It also includes a clip 8 that can slide left and right. The clip 8 is plate-shaped and placed obliquely so that it matches the thread groove 51. The clip 8 has a small hole 81 and a large hole 82 that are connected to each other; The hole wall of the portion 82 cannot be snapped into the thread groove 51 of the driving threaded rod 5 . The small hole 81 is an arc-shaped slot, the large hole 82 is a rectangular hole, and the arc-shaped slot is located on a side wall of the rectangular hole.

One end of the clip 8 is connected to the button 9 on the casing 1 , and the other end of the clip 8 is provided with a spring 10 that keeps the clip 8 moving toward the button 9 . There is a polished rod segment 52 on the drive screw 5 at the rear side of the clip 8 . A shaft sleeve 13 is fixed in the casing 1, and the transmission screw rod 5 is penetrated in the shaft sleeve 13. An installation box 14 is also fixed in the casing 1. The buttons 9, clips 8, and springs 10 are all arranged in the installation box 14. The shaft sleeve 13 passes through the installation box 14, and the shaft sleeve 13 has a gap 131 for the clip 8 to enter.

The working principle and process of this juice extractor are as follows.

Juicing process: put the juice cup into the casing 1 through the cup inlet 11, release the lock 35 and turn it downwards and open the juicing cover 3, as shown in Figure 1, at this time, the juicing head 2 is moved forward to the position exposed from the front opening 12, the fruit (orange, tangerine, lemon) is cut in half, and the side with pulp is mounted on the insertion rod 22. As shown in Figures 2 and 3, the juice extracting cover 3 is closed, and the lock 35 locks the juice extracting cover 3 in the closed position. Then press the button 9, the clip 8 moves, the drive screw 5 passes through the large hole 82 and the hole wall of the large hole 82 cannot be snapped into the threaded groove 51 of the drive screw 5, at this time the juice extracting head 2 can quickly return to the initial position with the drive screw 5, as shown in Figure 8; shown. Turning the handle 6 drives the juice extracting head 2 to rotate with the transmission screw 5. Under the cooperation of the clamp 8 and the screw groove 51 of the transmission screw 5, the juice extracting head 2 moves toward the juice extraction cover 3 while rotating with the transmission screw 5. When the peel of the fruit is held by the inner rib 32 and the stab 33 on the transition rib 34, it is not easy to rotate. At this time, the juice extraction head 2 will rotate and stir in the fruit pulp. The squeezing force is enough to complete the juicing, as shown in Figures 2, 3, and 8; the fruit juice is squeezed while stirring, and the juice is more fully squeezed and the juice yield is high. The juice is guided to the juice cup 4 inside the casing 1 through the drainage surface 37, and the juice cup can be taken out from the cup inlet 11 after completion, as shown in FIG. 9 .

The juicing path of the juice extractor is set horizontally. Compared with the vertical juicing path, the squeezed juice flows directly downward into the juice cup without polluting the juice.

If the squeezing force is too large, the juicer head 2 will overcome the elastic force of the elastic part 7 and move back and retract relative to the transmission screw 5. This means that the juicer head 2 will not continue to move forward forcibly to squeeze the juicer cover 3, avoiding the hard squeeze between the juicer head 2 and the juicer cover 3 under the action of a large squeeze force, avoiding the bursting of the juicer cover and the continuous increase of the extrusion force, and the operation is more convenient and labor-saving; For the juice cover, when the clip 8 touches the polished rod section 52 of the drive screw, the juice extracting head 2 cannot move forward further, and the juice extracting cover will not be squeezed again, which plays a role of safety protection.

After the juicing is completed, unlock the lock 35 and turn it down and open the juicer cover 3, the end of the insertion rod 22 passes through the chute 321 between two adjacent inner convex ribs 32 and slides out from the chute 321, take out the fruit peel mounted on the insertion rod 22, and the juice extraction is completed.

It should be noted that in the description of this embodiment, the orientations or positional relationships indicated by the terms "front, rear", "left, right", "inner, outer", "upper, lower", etc. are all based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. The terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Claims

A hand-operated juicer, characterized in that: comprising

Chassis (1);

Juicing head (2), the outer surface of the juicing head (2) is arc-shaped and provided with a plurality of outer convex ribs (21), and the top of the juicing head (2) is horizontally provided with an insertion rod (22) for mounting fruit;

A juice extraction cover (3) connected to the casing (1), the juice extraction cover (3) has an arc-shaped concave compression cavity (31), and the juice extraction head (2) can be accommodated in the compression cavity (31);

A transmission screw (5) that can rotate around its own axis and move back and forth, the rear end of the transmission screw (5) is connected to the rocker (6), and the juice extracting head (2) is connected to the front end of the transmission screw (5) and can rotate and move back and forth with it;

Juice glass (4) for storing juice.
The hand-operated juicer according to claim 1, characterized in that: the inner wall of the squeezing chamber (31) is provided with a plurality of inner ribs (32) extending from the middle of the squeezing chamber (31) to the edge.
The hand-operated juice extractor according to claim 2, characterized in that: the inner convex rib (32) is provided with a stab (33).
The hand-operated juice extractor according to claim 2, characterized in that: a transition rib (34) is provided between two adjacent inner ribs (32).
The hand-operated juice extractor according to claim 2, characterized in that: the juice extraction cover (3) is hinged on the casing (1), and when the juice extraction cover (3) is flipped open, the end of the insertion rod (22) passes through the chute (321) between two adjacent inner convex ribs (32) and can slide out from the chute (321).
The hand-operated juice extractor according to claim 2, characterized in that: the inner ends of the inner convex ribs (32) have a certain distance from the center point of the squeezing chamber (31), so that the inner ends of each inner convex rib (32) encloses an accommodation chamber (36), and the accommodation chamber (36) is used to accommodate the end of the insertion rod (22).
The hand-cranked juice extractor according to claim 1, further comprising an elastic component (7), the elastic component (7) enables the outer surface of the juice extraction head (2) to retract toward the rear side when subjected to a pressing force from the front side.
The hand-operated juice extractor according to claim 7, characterized in that: the juice extraction head (2) has a concave cavity (25), the elastic member (7) is arranged in the concave cavity (25) and acts on the transmission screw (5).
The hand-operated juice extractor according to claim 7, characterized in that: the elastic member (7) is located between the juice extraction head and the transmission screw (5), one end of the elastic member (7) acts on the juice extraction head (2), and the other end of the elastic member (7) acts on the transmission screw (5).
The hand-operated juice extractor according to claim 7, characterized in that: the transmission screw (5) includes a front section and a rear section, the front section and the rear section can slide relative to each other, and the elastic member (7) acts on the front section and the rear section of the transmission screw (5) at the same time.
The hand-cranked juice extractor according to claim 1, characterized in that: the outer ribs (21) extend from the top of the juicer head to the edge of the arc surface, and there is a recess (23) between the end of the outer ribs (21) close to the insertion rod (22) and the insertion rod (22).
The hand-operated juicer according to claim 1, characterized in that: it also includes a clamp (8) that can slide left and right, the clamp (8) has a small hole (81) and a large hole (82) connected to each other; when the transmission screw (5) is rotating and squeezing juice, the transmission screw (5) passes through the small hole (81), and the hole wall of the small hole (81) is inserted into the threaded groove (51) of the transmission screw (5) to achieve thread fit; When the rod (5) moves backward, the drive screw (5) can pass through the large hole (82) and the hole wall of the large hole (82) cannot snap into the thread groove (51) of the drive threaded rod (5).
The hand-operated juice extractor according to claim 12, characterized in that: one end of the clip (8) is connected to the button (9) on the casing (1), and the other end of the clip (8) is provided with a spring (10) that keeps the clip (8) moving toward the button (9).
The hand-operated juice extractor according to claim 12, characterized in that: there is a polished rod section (52) on the drive screw (5) at the rear side of the clamp (8).
The hand juicer according to claim 12, characterized in that: the small hole (81) is an arc-shaped slot, the large hole (82) is a rectangular hole, and the arc-shaped slot is located on the side wall of the rectangular hole.
The hand-operated juicer according to claim 1, characterized in that: the juice cup (4) is inserted in the lower part of the casing (1), the lower part of the casing (1) is provided with a cup inlet (11) for the juice cup to enter and exit the inner cavity of the casing (1), the lower part of the squeezing chamber (31) has an inclined drainage surface (37) that guides the juice downward to the juice cup (4); a lock is provided between the juice squeezing cover (3) and the casing to lock the juice squeezing cover (3) in a closed position Buckle (35).
The hand-cranked juice extractor according to claim 8, characterized in that: a connector (24) is constrained in the cavity (25), the keyway between the connector (24) and the cavity (25) fits and the two can slide back and forth relative to each other, the front end of the transmission screw (5) is inserted into the connector (24), and the elastic member (7) acts on the connector (24).
The hand-operated juice extractor according to claim 13, characterized in that: a shaft sleeve (13) is fixed inside the casing (1), the transmission screw (5) is penetrated in the shaft sleeve (13), an installation box (14) is also fixed inside the casing (1), buttons (9), clips (8), and springs (10) are all arranged in the installation box (14), the shaft sleeve (13) passes through the installation box (14), and the shaft sleeve (13) is provided with a card supply The notch (131) through which piece (8) enters.