WO2022073373A1

WO2022073373A1 - Juicer feeding upper cover and juicing assembly using upper cover

Info

Publication number: WO2022073373A1
Application number: PCT/CN2021/108253
Authority: WO
Inventors: 万泽安
Original assignee: 万泽安
Priority date: 2020-10-10
Filing date: 2021-07-23
Publication date: 2022-04-14

Abstract

Disclosed in the present invention are a juicer feeding upper cover and a juicing assembly using said upper cover, relating to the technical field of juicers; the feeding cover comprises a cover body, a safety through hole being arranged on the upper end of the cover body, and a feeding channel in communication with the safety through hole and penetrating the lower end of the cover body being formed in the axial direction inside the cover body; at least one first damping rib cooperating with a stirring and cutting head on a screw to cut fruit and at least one second damping rib cooperating with a stirring and cutting head on a screw to cut fruit being arranged respectively along the feeding direction on the inner wall of the feeding channel, the first damping rib being positioned on the upper side of an outer stirring and cutting head and the minimum distance between the first damping rib and the central axis of the feeding channel being less than the maximum distance between the outer stirring and cutting head and the central axis of the feeding channel; and the second damping rib is positioned on the side of the outer stirring and cutting head; the present invention aims to provide a juicer feeding upper cover and a juicing assembly using said upper cover having a compact structure, convenient usage, and good effects; for use in a juicer.

Description

Juicer feeding cover and juice extracting assembly using the same

technical field

The present invention relates to a feed upper cover, more particularly, to a feed upper cover for a juicer. The invention also relates to a juice extracting assembly using the feed cover.

Background technique

The original juicer is developed on the basis of the conventional juicer, and its main function is to turn the fruit into juice to improve the taste and facilitate drinking. Compared with a juicer, it obtains juice through low-speed screw extrusion. The lower the extrusion speed, the better. Generally, the original juicer rotates at about 75 rpm. It squeezes out the juice slowly like squeezing a towel, without destroying the fruit cells. structure, fruit nutrition can be preserved. Moreover, the low-speed juice will not generate high heat, and the problem of juice oxidation by heat is also avoided.

At present, for small juicers, due to the size limitation of the internal juicing components, the input ingredients need to be cut into small sizes to complete juicing, which requires users to cut the ingredients before juicing. Inconvenient disadvantage. The large juicer, although it can juice the whole food, has the disadvantages of being bulky, heavy, and difficult to move.

SUMMARY OF THE INVENTION

The former purpose of the present invention is to provide a juicer feeding cover with compact structure, convenient use and good effect, aiming at the above-mentioned deficiencies of the prior art.

The latter object of the present invention is to provide a juice extracting assembly using the above-mentioned upper cover.

The previous technical solution of the present invention is achieved as follows: a juicer feeding upper cover, including a cover body, a safety through hole is provided at the upper end of the cover body, and a conduction safety through hole is formed in the cover body along the axial direction. The hole passes through the feeding channel at the lower end of the cover body; on the inner wall of the feeding channel, at least one first damping rib that cooperates with the stirring and cutting head on the external screw to cut fruit and at least one The stirring and cutting head on the external screw is matched with the second damping rib for cutting fruit, the first damping rib is located on the upper side of the external stirring and cutting head, and the minimum distance between the first damping rib and the central axis of the feeding channel is less than The maximum distance between the external stirring and cutting head and the central axis of the feeding channel; the second damping rib is located on the side of the external stirring and cutting head.

In the above-mentioned upper cover for feeding the juicer, a safety cover is hinged to the opening of the cover body, and the safety through hole is arranged on the safety cover; an elastic lock catch.

An operation handle is arranged on the outer wall of the cover, and a lock hole matched with the elastic lock is arranged on the upper end of the operation handle. When the safety cover is covered on the opening of the cover, the elastic lock is fastened to the lock under the action of elastic force. In the hole, when the safety cover needs to be opened, the fingers pass through the operating handle and turn the elastic lock to disengage from the lock hole.

In the above-mentioned feeding cover of the juicer, a push rod is provided on the safety cover on the side of the elastic lock, a linkage mechanism matched with the push rod is provided in the operating handle, and a lower end of the linkage mechanism is provided with a push rod. The magnet is matched with the magnetic control switch on the upper part of the external base. When the push rod is separated from the linkage mechanism, the juicer motor is in a forced power-off state. When the push rod contacts and squeezes the linkage mechanism, the juicer motor is in a state of forced power-off. Normal controlled state.

In the above-mentioned feeding cover of the juice extractor, the number of the first damping ribs is 1-4 and the vertical cross section is a right triangle, and the hypotenuse of the right triangle is opposite to the central axis of the feeding channel.

In the above-mentioned feeding cover of the juice extractor, the inner wall of the feeding channel is provided with a plurality of second damping ribs along the feeding direction that cooperate with the stirring and cutting heads on the external screw to cut fruit, and each second damping rib The ribs are distributed at intervals along the circumferential direction of the feeding channel; the distance between the second damping ribs and the central axis of the feeding channel is greater than the maximum distance between the external stirring cutting head and the central axis of the feeding channel; the lower ends of the first damping ribs are corresponding to the corresponding The upper ends of the second damping ribs are connected to each other and are integrally formed.

In the above-mentioned feeding cover of the juice extractor, the inner wall of the feeding channel is provided with a plurality of third damping ribs along the feeding direction, which cooperate with the stirring and cutting heads on the external screw to cut fruit, and each second damping rib is provided. The rib and each third damping rib are distributed at intervals along the circumference of the feed channel; the distance between the third damping rib and the central axis of the feeding channel is greater than the distance between the second damping rib and the central axis of the feeding channel.

After the present invention adopts the above structure, by providing a through feeding channel, it is convenient for the installation of the external stirring and cutting head, and also facilitates the downward movement of the food; at the same time, a first damping rib is provided, the function of which is to prevent the food from idling and cooperate with the stirring and cutting head Roughly crushing and cutting the whole food, the function of the second damping rib is also to prevent the food from idling and cooperate with the stirring and cutting head to further cut and crush the food, so that the food can smoothly enter the screw and filter. In the extrusion gap formed, the purpose of extruding the whole food material from large to small and finally extruding the juice is realized.

The latter technical solution of the present invention is achieved as follows: a juice extracting assembly using the above-mentioned feeding cover, including a squeeze cup, the opening of the squeeze cup is detachably connected with the feeding cover, and the squeeze cup is A filter is arranged in the filter, a screw is rotatably connected in the filter, and the bottom of the screw is connected and linked with an external drive motor; a stirring and cutting head is detachably connected to the upper end of the screw.

In the above-mentioned juice extracting assembly, the outer wall of the lower end of the screw is provided with a positioning convex ring along the circumferential direction, and the lower end of the filter is provided with a pressure ring matched with the positioning convex ring, and the screw can be rotated through the cooperation of the positioning convex ring and the pressure ring. It is fixed in the squeeze cup; wear parts are arranged along the circumferential direction between the lower end face of the screw rod or the positioning convex ring and the squeeze cup and/or between the upper end face of the positioning convex ring and the pressing ring.

In the above-mentioned juice extracting assembly, a shaft sleeve is arranged in the center of the screw, a steel shaft is passed through the shaft sleeve, an annular boss opposite to the shaft sleeve is arranged in the center of the inner bottom of the squeeze cup, and the center of the annular boss is arranged. There is a let-down hole, and the external motor drive shaft is connected with the steel shaft through the let-down hole;

The wear-resistant piece is composed of a first silicone ring sleeved at the abdication hole and a second silicone ring arranged at the lower end of the pressure ring and matched with the positioning convex ring; the lower end surface of the second silicone ring is connected to the squeeze cup The inner bottom is in contact with each other; when the screw is idling, the first silicone ring supports the screw so that the bottom is separated from the inner bottom of the squeeze cup; when the juice is squeezed, the second silicone ring prevents the positioning convex ring from contacting the pressing ring.

In the above-mentioned juice extracting assembly, the stirring and cutting head is composed of a connecting portion connected with the upper end of the screw rod and a cutting portion integrally formed with the connecting portion and extending spirally upward.

The cutting portion is formed with an inner cutting edge matched with the first damping rib and the second damping rib along the inner side of the helical structure, and is formed with the first damping rib and the second damping rib along the outer side of the helical structure. The outer cutting edge matched with the strip is the extrusion pushing surface along the lower surface of the helical structure.

The bottom surface of the cutting portion on the side of the connecting portion is an elongated planar structure in contact with the upper end surface of the screw rod.

In the above-mentioned juice extracting assembly, a first auxiliary extruding cutting edge that is matched with the second damping rib is protruded on the outer side of the free end of the cutting portion, and at least one auxiliary extruding cutting edge is protruded along the helical direction on the outer side of the cutting portion. The second auxiliary extrusion cutting edge matched with the second damping rib.

In the above-mentioned juice extracting assembly, the filter is composed of a rounded table portion that is large at the top and small at the bottom and a round table portion that is connected to the lower end of the rounded table and is small at the top and large at the bottom; the busbar of the rounded table is connected to the middle. The included angle of the axis and the included angle between the generatrix of the perfect circular truncated truncated part and the central axis are both 1-10°; the inner wall of the rounded truncated truncated part is circumferentially distributed with a number of auxiliary extrusion ribs matched with the upper part of the main cutting edge on the screw The upper end surface of the screw rod is located on the upper side of the upper end surface of the auxiliary extrusion rib.

After the present invention adopts the above structure, the stirring and cutting head cooperates with the feeding upper cover to pre-crush the whole food material, and the crushed food material smoothly enters the gap formed by the screw and the filter, and then squeezes out the juice. Since the stirring and cutting head is located in the upper feed cover, and the inner diameter of the feed channel in the upper feed cover is much larger than the outer diameter of the screw, the juice extracting assembly of the present invention can be compared to the ingredients with a much larger screw radius. In this way, it is possible to process the whole food material even if the external size is small.

Description of drawings

The present invention will be further described in detail below with reference to the embodiments in the accompanying drawings, but it does not constitute any limitation to the present invention.

Fig. 1 is the structural representation of the feed upper cover of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of the cover top of the present invention;

Fig. 3 is the three-dimensional structure schematic diagram of the bottom of the cover of the present invention;

Fig. 4 is the structural representation of the juicing assembly of the present invention;

Fig. 5 is the exploded structure schematic diagram of Fig. 4;

Fig. 6 is one of the structural representations of the stirring and cutting head of the present invention;

Fig. 7 is the second structural representation of the stirring and cutting head of the present invention;

Fig. 8 is the third schematic diagram of the structure of the stirring and cutting head of the present invention;

Fig. 9 is the sectional structure schematic diagram of the filter of the present invention;

FIG. 10 is a schematic three-dimensional structure diagram of the filter of the present invention.

In the figure: 1, cover body; 1a, safety through hole; 1b, feeding channel; 1c, first damping rib; 1d, second damping rib; 1e, operating handle; 1f, locking hole; 1g, the first Three damping ribs; 1h, positioning ring; 1i, connecting ear; 2, safety cover; 2a, elastic lock; 2b, push rod; 2c, linkage mechanism; 2d, magnet; 3, squeeze cup; 3a, annular convex table; 3b, positioning groove; 3c, connection bayonet; 4, filter; 4a, pressure ring; 4b, rounded table part; 4c, perfect round table part; 4d, auxiliary extrusion rib; 4e, positioning ear; 5, Screw; 5a, positioning convex ring; 5b bushing; 5c, steel shaft; 6, stirring cutting head; 6a, connecting part; 6b, cutting part; 6c, inner cutting edge; 6d, outer cutting edge; 6e, extrusion push 6f, horizontal cutting edge; 6g, first auxiliary extrusion cutting edge; 6h, second auxiliary extrusion cutting edge; 7, wear-resistant parts; 7a, first silicone ring; 7b, second silicone ring.

Detailed ways

Referring to Figures 1 to 3, a juicer feed upper cover of the present invention includes a cover body 1, the upper end of the cover body 1 is provided with a safety through hole 1a, the safety through hole is the national standard size, and the maximum cross-sectional size is not more than about 43mm. The cover body 1 is axially formed with a safety through hole 1a and a feed channel 1b penetrating the lower end of the cover body 1 . The through feeding channel, that is, there is no blocking structure in the feeding channel, not only facilitates the food to descend, but also does not affect the external stirring and cutting head extending into the feeding channel and rotating.

On the inner wall of the feeding channel 1b along the feeding direction, at least one first damping rib 1c that cooperates with the stirring and cutting head on the external screw to cut fruit and at least one first damping rib 1c that cooperates with the stirring and cutting head on the external screw to cut The second damping rib 1d of the fruit. The arrangement direction of the first damping rib and the second damping rib may be arranged along the axial direction, or may be arranged at a certain inclination angle, which is the common knowledge of those skilled in the art, and will not be repeated here.

The first damping rib 1c is located on the upper side of the external stirring cutting head and the minimum distance between the first damping rib 1c and the central axis of the feeding channel 1b is smaller than the maximum distance between the external stirring cutting head and the central axis of the feeding channel 1b. distance; the second damping rib 1d is located on the side of the external stirring and cutting head. The function of the first damping rib is to prevent the large particles or the whole food from idling along the feeding channel. The number of the setting depends on the size of the feeding channel. When the diameter of the feeding channel is small, the number of the first damping ribs Minimize to increase feed size.

Preferably, the number of the first damping ribs 1c is 1-4, and the vertical section thereof is a right-angled triangle, and the hypotenuse of the right-angled triangle is opposite to the central axis of the feeding channel 1b. Of course, the shape of the first damping rib can also be other conventional shapes in the art, such as arc shape, trapezoid shape, etc., as long as it can prevent the idling of large particles of food materials.

Preferably, the inner wall of the feeding channel 1b is provided with a plurality of second damping ribs 1d along the feeding direction, which cooperate with the stirring and cutting heads on the external screw to cut fruits, and each second damping ribs 1d is along the feeding channel 1b. Circumferentially spaced distribution; the distance between the second damping ribs 1d and the central axis of the feeding channel 1b is greater than the maximum distance between the external stirring and cutting head and the central axis of the feeding channel 1b; the lower end of each first damping rib 1c and the corresponding number of The upper ends of the second damping ribs 1d are connected to each other and integrally formed. The function of the second damping rib is to cooperate with the external stirring and cutting head to further cut and crush the ingredients, so that the ingredients can easily enter the extrusion gap formed by the screw and the filter for final extrusion and juice.

Further preferably, a safety cover 2 is hinged to the opening of the cover body 1, and the safety through hole 1a is provided on the safety cover 2; an elastic lock 2a is provided on the lower end surface of the proximal end of the safety cover 2 away from the hinge part. Of course, the cover body and the safety cover may also adopt other conventional connection methods in the art, such as screwing, snapping, and detachable connection methods.

In addition, when the product size is small, the safety cover can be integrally formed on the feed upper cover. Of course, when this structure is adopted, the position and structure of the corresponding safety induction switch need to be readjusted. But these are easily thought of by those skilled in the art.

An operation handle 1e is arranged on the outer wall of the cover body 1, and a lock hole 1f is arranged on the upper end of the operation handle 1e to match the elastic lock 2a. When the safety cover 2 is covered on the opening of the cover 1, the elastic lock 2a is in the Under the action of elastic force, it is fastened in the lock hole 1f. When the safety cover 2 needs to be opened, the fingers pass through the operating handle 1e and turn the elastic lock 2a to disengage from the lock hole 1f. By adopting this structure, the opening and closing of the safety cover is cleverly realized. The cooperation between the elastic lock and the lock hole can adopt the conventional technology in the field. The arrangement of the boss allows the hook to be as far away as possible from the connection between the elastic lock and the cover, so that the hook can be separated from the boss without too much elastic deformation during operation.

In order to improve the safety of equipment use, a push rod 2b is provided on the safety cover 2 on the side of the elastic lock 2a, and a linkage mechanism 2c that cooperates with the push rod 2b is provided in the operating handle 1e. At the lower end of the linkage mechanism 2c A magnet 2d is provided, and the magnet 2d cooperates with the magnetic control switch on the upper part of the external base. When the push rod 2b is separated from the linkage mechanism 2c, the juicer motor is in a forced power-off state. When the push rod 2b contacts and squeezes the linkage mechanism At 2c, the juicer motor is under normal control.

Further preferably, in order to improve the pre-crushing effect of the ingredients, a number of third damping ribs 1g are arranged along the feeding direction on the inner wall of the feeding channel 1b, which cooperate with the stirring and cutting heads on the external screw to cut fruit, and each second damping rib 1g. The damping ribs 1d and the third damping ribs 1g are distributed at intervals along the feed channel 1b; the distance between the third damping ribs 1g and the central axis of the feeding channel 1b is greater than the distance between the second damping ribs 1d and the feeding channel 1b Spacing of the central axis. The second damping rib and the third damping rib can be staggered or arranged in sequence, depending on the number of each rib and the inner diameter of the feeding channel.

Referring to FIGS. 4 to 10, a juice extracting assembly using the above-mentioned feeding cover of the present invention includes a squeeze cup 3, and the opening of the squeeze cup 3 is detachably connected with the feeding cover. A filter 4 is arranged in the pressing cup 3 . Specifically, a plurality of positioning ears 4e are distributed along the circumferential direction on the outer wall of the upper proximal portion of the filter, and the squeeze cup is provided with positioning grooves 3b corresponding to the positioning ears one-to-one. At the same time, an L-shaped connection bayonet 3c is provided in the squeeze cup at the upper end of the positioning groove, which is snap-connected with the feeding upper cover, and a positioning ring 1h is arranged at the lower end of the feeding upper cover. The upper edge of the outer wall of the positioning ring 1h There are connecting ears 1i corresponding to each connecting bayonet one-to-one in the circumferential direction. When the connecting lug and the connecting buckle are buckled, the lower end face of the positioning ring presses the positioning lug, because when the positioning lug is installed in the positioning groove, the upper end face of the positioning lug and the lower end face of the connecting bayonet are located on the same plane.

Adopted in the present embodiment is an integrally formed filter, which is formed by the cooperation of the transverse annular rib and the longitudinal rib to form a long filter hole with a small inside and a large outside, and a vertical extrusion rib is integrally formed in the filter at the same time.

A screw 5 is rotatably connected in the filter 4, and the bottom of the screw 5 is connected and linked with an external drive motor; a stirring and cutting head 6 is detachably connected to the upper end of the screw 5. The stirring and cutting head 6 is preferably located in the upper cover of the feed. Of course, under the condition that the shape and structure of the stirring and cutting head remain unchanged, the upper end of the filter extends upward and the diameter is wrapped around the periphery of the stirring and cutting head, and the effect is the same. When the filter is delayed, the corresponding damping ribs located in the upper cover of the feed are adjusted to the inner wall of the filter on the periphery of the stirring and cutting head according to the actual situation. At the same time, the stirring and cutting head is preferably arranged coaxially with the screw, so as to facilitate subsequent fixing with the steel shaft with the screw. Of course, if the convenience of connection is not considered, the stirring cutting head can also be installed eccentrically.

The key technology of the present invention is that the feeding upper cover is a bottomless structure, and the feeding channel is arranged throughout, so that the stirring and cutting head can easily extend into the feeding upper cover to pre-cut and crush the ingredients, so that the juice extracting component can be in the shape of In the case of smaller size, it is still possible to directly squeeze the juice of larger size ingredients, such as whole apples, whole peeled oranges, etc., so that the product has a smaller size and lighter weight. Juicing large-sized ingredients quickly and easily.

In order to facilitate disassembly and assembly and avoid wear and tear, the outer wall of the lower end of the screw 5 is provided with a positioning convex ring 5a along the circumferential direction, and the lower end of the filter 4 is provided with a pressure ring 4a matched with the positioning convex ring 5a, and the screw 5 passes through the positioning convex ring 5a. It is rotatably fixed in the squeeze cup 3 in cooperation with the pressure ring 4a; between the screw 5 or the lower end face of the positioning convex ring 5a and the squeeze cup 3 and/or between the upper end face of the positioning convex ring 5a and the pressure ring 4a along the circumferential direction Wear parts 7 are provided. The wear-resistant part is preferably a food-grade silicone ring. Of course, it can also be a non-connected bump support structure, or a combined wear-resistant metal structure. It can be the fit of the ring and the bump.

In this embodiment, a shaft sleeve 5b is arranged in the center of the screw 5, a steel shaft 5c is passed through the shaft sleeve 5b, and an annular boss 3a opposite to the shaft sleeve 5b is arranged in the center of the inner bottom of the squeeze cup 3. The center of the boss 3a is provided with an escape hole, and the external motor drive shaft is connected and linked with the steel shaft 5c through the escape hole.

The wear-resistant piece 7 is composed of a first silicone ring 7a sleeved at the escaping hole and a second silicone ring 7b arranged at the lower end of the pressure ring 4a and matched with the positioning convex ring 5a; the second silicone ring 7b The lower end surface is in contact with the inner bottom of the squeeze cup 3; when the screw 5 is idling, the first silicone ring 7a supports the screw 5 so that the bottom is separated from the inner bottom of the squeeze cup 3; when juicing, the second silicone ring 7b prevents The positioning boss ring 5a is in contact with the pressing ring 4a. The shape of the second silicone ring and its connection with the pressure ring can be varied. As long as it can realize the isolation and positioning convex ring and the pressure ring during juice extraction, it can simultaneously play the role of supporting the filter and making the fixation more stable. In this embodiment, a connecting ring is integrally formed at the lower end of the pressing ring, and the second silicone ring has a U-shaped structure and is fastened on the connecting ring. At the same time, the inner end surface of the second silicone ring horizontally extends the isolation ring to isolate the pressure ring and the positioning convex ring.

Of course, this is a preferred embodiment, and does not constitute a limitation on the specific structure of the wear-resistant part. For wear-resistant parts, the first choice is to prevent the screw from contacting the bottom of the extrusion cup when idling, and to prevent the positioning convex ring from contacting the pressure ring when juicing.

A slag discharge hole is arranged on the lower side wall of the filter, and the slag discharge hole communicates with the slag discharge port on the squeeze cup. A juice outlet is provided on the squeeze cup at the side of the slag outlet.

In this embodiment, the stirring and cutting head 6 is composed of a connecting portion 6a connected to the upper end of the screw 5 and a cutting portion 6b integrally formed with the connecting portion 6a and extending spirally upward. A connecting hole is arranged on the stirring and cutting head along the axial direction of the connecting portion, and the screw is connected with the screw through the connecting hole. Preferably, a steel shaft is arranged in the screw, and the steel shaft is connected with the external drive motor. At the same time, the upper end of the steel shaft is provided with an inner thread hole, and the screw passing through the stirring and cutting head is threadedly connected to the upper end of the steel shaft. Through this ingenious structure , and fix the stirring cutting head and the steel shaft at the same time.

The cutting portion 6b is formed along the inner side of the helical structure with an inner cutting edge 6c matched with the first damping rib 1c and the second damping rib 1d, and along the outer side of the helical structure is formed with the first damping rib 1c. The outer cutting edge 6d matched with the second damping rib 1d is the extrusion pushing surface 6e along the lower surface of the helical structure.

The bottom surface of the cutting portion 6b on the side of the connecting portion 6a is a plane structure in contact with the upper end surface of the screw 5, and one end edge of the plane structure away from the connecting portion 6a forms a horizontal cutting edge 6f, the horizontal cutting edge 6f is located outside the upper end surface of the screw 5 .

Preferably, the cross-section of the connecting portion is quadrilateral, which not only plays the role of preventing the rotation of the stirring and cutting head, but also facilitates adjustment of the installation angle of the stirring and cutting head relative to the screw. The upper end face of the main cutting edge, which is on the same plane as the upper end face of the screw, acts as a horizontal cutting edge, and can cut and crush larger particles of food. Experiments have found that when installing, keeping the horizontal cutting edge and the upper end face of the main cutting edge at a reasonable angle has a better cutting effect. Preferably, when the horizontal cutting edge and the upper end face of the main cutting edge are at 90° or 180° and the free end of the cutting portion is far away from the upper end face of the main cutting edge, the cutting of large-grained food has an unexpected effect, which can quickly The granular food is chopped and broken from large to small. Compared with other installation angles, the speed of cutting and crushing is increased by at least 30%. Therefore, by setting the cross section of the connecting portion to be quadrilateral, the angle between the upper end face of the main cutting edge and the horizontal cutting edge can be quickly and accurately ensured.

Further preferably, a first auxiliary extruding cutting edge 6g which is matched with the second damping rib 1d is protruded on the outer surface of the free end of the cutting portion 6b, and at least one auxiliary extruding cutting edge 6g is protruded along the helical direction on the outer surface of the cutting portion 6b. The second auxiliary extruding cutting edge 6h matched with the two damping ribs 1d. During the experiment, it was found that some fruits with a smooth surface, such as unpeeled apples, in the process of becoming smaller from the whole, because the surface of the cutting part is smooth, they can only cut the ingredients but are not easy to move the ingredients, making the ingredients slippery. The phenomenon requires that after the screw rotates for many times, the food can be further cut and broken when the angle of the food is changed. When the first auxiliary extruding cutting edge and the second auxiliary extruding cutting edge are added, the problem of slippage of the ingredients is eliminated, which has an unexpected effect.

Further preferably, in order to avoid slippage due to the large distance between the cutting edges when the ingredients just enter the main cutting edge on the upper part of the screw, and at the same time, more ingredients can smoothly enter the extrusion formed by the filter and the screw. within the gap. The filter 4 is composed of a rounded table portion 4b that is large at the top and small at the bottom and a perfect rounded table portion 4c connected to the lower end of the rounded table portion 4b and has a small upper and a large bottom; the angle between the busbar of the rounded table portion 4b and the central axis is formed. And the included angle between the bus bar of the circular truncated portion 4c and the central axis is both 1-10°. Correspondingly, the whole screw is also a round table switch with a small top and a big bottom. The specific angle of each component depends on the size of the product. This structure of the filter not only facilitates the entry of food materials, but also plays an auxiliary role in avoiding the string on the screw due to the cooperation between the shape of the lower truncated cone at the lower part of the filter and the screw. When disassembling, the filter must be removed before the screw can be removed.

A number of auxiliary extrusion ribs 4d are distributed along the circumferential direction on the inner wall of the rounded table portion 4b and are matched with the upper portion of the main cutting edge on the screw 5 . The auxiliary extrusion rib is preferably formed by a plurality of extrusion ribs extending upward from the upper end, and the inner end face of each auxiliary extrusion rib facing the axis and the extension surface of the circular truncated portion are located on the same annular arc surface.

Further preferably, the upper end surface of the screw 5 is located on the upper side of the upper end surface of the auxiliary extrusion rib 4d. At this time, the distance from the auxiliary extrusion rib to the central axis of the filter is smaller than the distance from the outermost end of the stirring cutting edge to the central axis of the filter, and the two form a dislocation. into the filter.

Of course, depending on the size of the product, the upper end face of the screw can also be flush with the upper end face of the auxiliary extrusion rib or the filter or located on the lower side of them. For example, when the product size is large, the gap between the upper part of the screw and the rounded table part is large. This is easily thought of by those skilled in the art.

By setting auxiliary extrusion ribs, the space between the main cutting edges can be reduced, so that the food can be effectively cut and broken and moved downward under the cutting and guiding action of the main cutting edges.

When working, put the whole or large food material into the feeding channel, and through the action of the stirring cutting head and each damping rib, the food material is gradually squeezed, cut, and broken into small particles of food material, and finally enters the screw and the screw. In the extrusion gap formed by the filter, the separation of the juice residue is realized, and the juice extraction is completed.

The above-mentioned embodiments are preferred embodiments of the present invention, and are only used to facilitate the description of the present invention, and are not intended to limit the present invention in any form. Within the scope of the technical features of the present invention, equivalent embodiments with partial changes or modifications made by using the technical content disclosed in the present invention, and without departing from the technical features of the present invention, still belong to the scope of the technical features of the present invention.

Claims

An upper cover for feeding a juicer, comprising a cover body (1), the upper end of the cover body (1) is provided with a safety through hole (1a), characterized in that the cover body (1) is formed in the axial direction There is a feed channel (1b) which leads through the safety through hole (1a) and penetrates the lower end of the cover body (1); on the inner wall of the feed channel (1b) along the feeding direction, at least one agitator and an external screw are respectively arranged The cutting head cooperates with the first damping rib (1c) for cutting fruit and at least one second damping rib (1d) cooperates with the stirring and cutting head on the external screw to cut fruit, the first damping rib (1c) ) is located on the upper side of the external stirring cutting head and the minimum distance between the first damping rib (1c) and the central axis of the feeding channel (1b) is smaller than the maximum distance between the external stirring cutting head and the central axis of the feeding channel (1b) ; The second damping rib (1d) is located on the side of the external stirring and cutting head.
A juicer feeding upper cover according to claim 1, wherein a safety cover (2) is hinged to the opening of the cover body (1), and the safety through hole (1a) is provided in the safety cover (2) upper; an elastic lock (2a) is provided on the lower end face of the proximal end of the safety cover (2) away from the hinge part;

An operating handle (1e) is arranged on the outer wall of the cover body (1), and a locking hole (1f) matched with the elastic lock (2a) is arranged on the upper end of the operating handle (1e). When the cover (1) is open, the elastic lock (2a) is fastened in the lock hole (1f) under the action of elastic force. When the safety cover (2) needs to be opened, the fingers pass through the operating handle (1e) and dial. Move the elastic lock (2a) to disengage it from the lock hole (1f).
A juicer feeding upper cover according to claim 2, characterized in that a push rod (2b) is provided on the safety cover (2) on the side of the elastic lock (2a), and a push rod (2b) is provided on the operating handle (2a). 1e) is provided with a linkage mechanism (2c) that cooperates with the push rod (2b), a magnet (2d) is arranged at the lower end of the linkage mechanism (2c), and the magnet (2d) cooperates with the magnetic control switch on the upper part of the external frame, When the push rod (2b) is separated from the linkage mechanism (2c), the juicer motor is in a forced power-off state, and when the push rod (2b) contacts and squeezes the linkage mechanism (2c), the juicer motor is under normal control state.
A juicer feeding upper cover according to claim 1, characterized in that the number of the first damping ribs (1c) is 1-4, and the vertical cross section of the first damping ribs (1c) is a right-angled triangle. The beveled edge of is opposite to the central axis of the feed channel (1b).
A juicer feeding cover according to claim 4, characterized in that, the inner wall of the feeding channel (1b) is provided with a plurality of pieces along the feeding direction to cooperate with the stirring and cutting heads on the external screw to cut fruit The second damping ribs (1d) are distributed at intervals along the circumference of the feeding channel (1b); the second damping ribs (1d) and the central axis of the feeding channel (1b) The spacing is greater than the maximum spacing between the external stirring and cutting head and the central axis of the feeding channel (1b); the lower end of each first damping rib (1c) and the upper end of a corresponding number of second damping ribs (1d) are connected to each other and integrally formed.
A juicer feeding upper cover according to claim 5, characterized in that, the inner wall of the feeding channel (1b) is provided with a plurality of pieces along the feeding direction to cooperate with the stirring and cutting heads on the external screw to cut fruit The third damping rib (1g) of the ) and the central axis of the feeding channel (1b) are greater than the distance between the second damping ribs (1d) and the central axis of the feeding channel (1b).
A juice extracting assembly, comprising a squeezing cup (3), characterized in that the opening of the squeezing cup (3) is detachably connected with the feeding upper cover according to any one of the preceding claims 1-6. A filter (4) is arranged in the pressing cup (3), a screw (5) is rotatably connected in the filter (4), and the bottom of the screw (5) is connected with an external drive motor; the upper end of the screw (5) is detachably connected There is a stirring cutting head (6).
A juice extracting assembly according to claim 7, characterized in that, a positioning convex ring (5a) is provided along the circumferential direction on the outer wall of the lower end of the screw (5), and a positioning convex ring is provided at the lower end of the filter (4). (5a) the matched pressing ring (4a), the screw (5) is rotatably fixed in the squeeze cup (3) through the cooperation of the positioning convex ring (5a) and the pressing ring (4a);

A wear-resistant piece is arranged in the circumferential direction between the lower end surface of the screw (5) or the positioning convex ring (5a) and the squeeze cup (3) and/or between the upper end surface of the positioning convex ring (5a) and the pressing ring (4a) (7).
A juice extracting assembly according to claim 8, characterized in that a shaft sleeve (5b) is arranged in the center of the screw (5), and a steel shaft (5c) is passed through the shaft sleeve (5b), The center of the inner bottom of the cup (3) is provided with an annular boss (3a) opposite to the shaft sleeve (5b), the center of the annular boss (3a) is provided with a let-away hole, and the drive shaft of the external motor passes through the let-away hole and the steel shaft ( 5c) Connection linkage;

The wear-resistant piece (7) consists of a first silicone ring (7a) sleeved at the escaping hole and a second silicone ring (7b) arranged at the lower end of the pressure ring (4a) and matched with the positioning convex ring (5a). ) composition; the lower end face of the second silicone ring (7b) is in contact with the inner bottom of the squeeze cup (3); when the screw (5) is idling, the first silicone ring (7a) supports the screw (5) so that its bottom is in contact with the inner bottom of the squeeze cup (3). The inner bottom of the squeeze cup (3) is separated from each other; when the juice is squeezed, the second silicone ring (7b) prevents the positioning convex ring (5a) from contacting the pressing ring (4a).
A juice extracting assembly according to claim 7, characterized in that, the stirring and cutting head (6) consists of a connecting part (6a) connected with the upper end of the screw (5), and the connecting part (6a) is integrally formed and screwed. The upwardly extending cutting portion (6b) is composed;

The cutting portion (6b) is formed with an inner cutting edge (6c) matched with the first damping rib (1c) and the second damping rib (1d) along the inner side of the helical structure, and is formed along the outer side of the helical structure There is an outer cutting edge (6d) matched with the first damping rib (1c) and the second damping rib (1d), and the lower surface of the helical structure is an extrusion pushing surface (6e);

The bottom surface of the cutting portion (6b) on the side of the connecting portion (6a) is a planar structure in contact with the upper end surface of the screw (5). The horizontal cutting edge (6f) is located outside the upper end face of the screw (5).
A juice extracting assembly according to claim 10, characterized in that a first auxiliary extruding cutting edge ( 6g), at least one second auxiliary extruding cutting edge (6h) matched with the second damping rib (1d) is protruded along the helical direction on the outer surface of the cutting portion (6b).
A juice extracting assembly according to claim 7, characterized in that, the filter (4) consists of a rounded table portion (4b) with a large upper and a lower bottom and a rounded table portion (4b) connected to the lower end of the rounded table portion (4b). It is composed of a circular truncated portion (4c) that is smaller and larger; the included angle between the busbar and the central axis of the rounded truncated truncated portion (4b) and the included angle between the busbar and the central axis of the circular truncated truncated portion (4c) are both 1-10°;

The inner wall of the rounded table portion (4b) is circumferentially distributed with a number of auxiliary extrusion ribs (4d) that are matched with the upper part of the main cutting edge on the screw rod (5). Squeeze the upper side of the upper end face of the rib (4d).