CN111358266B

CN111358266B - Separation screw and juicer using same

Info

Publication number: CN111358266B
Application number: CN202010128004.3A
Authority: CN
Inventors: 金煐麒; 李次雨
Original assignee: Megumi Corp
Current assignee: Megumi Corp
Priority date: 2017-10-31
Filing date: 2018-10-30
Publication date: 2021-10-26
Anticipated expiration: 2038-10-30
Also published as: CN209528838U; KR20200064136A; KR102619253B1; KR102465519B1; CN111358266A; TWM574455U; CN211483970U; CN111419070A; CN111246780A; WO2019088675A1; CN111419070B; CN111246780B; KR20220102154A; KR20220102155A; KR20220101778A

Abstract

The invention relates to a separation screw. The separation screw of an embodiment of the present invention is characterized by comprising: a first module including a first body and a plurality of slits formed on the first body; and a second module including a second body detachably coupled with the first body and a rib inserted into the slit, wherein when the first module is coupled with the second module, a gap is formed between the rib and the slit to allow external juice to flow into the inside.

Description

Separation screw and juicer using same

The application is a divisional application of PCT national phase patent application with application date of 2018, 10 and 30 months and application number of 201880041377.8, and the invention name of the patent application is 'separating screw and juicer using the separating screw'.

Technical Field

The present invention relates to a separation screw and a juicer using the same, and more particularly, to a separation screw detachably constructed with two modules and a juicer using the same.

Background

In recent years, as people's interest in health has increased, the use frequency of juice extractors, which have a function of extracting juice directly from a juice extraction target such as vegetables, grains, or fruits, by individuals at home, has been increasing.

A general operation form of such a juice extractor is, as disclosed in korean patent No. 793852, a manner of pressing a juice-extracting object using, for example, the principle of grinding and extracting soybean juice with a stone mill.

Therefore, the juicer is provided with: a driving part for providing a rotational force; a juice extracting barrel having a driving shaft for receiving a rotational force from the driving part; a screw connected to the driving shaft inside the juicing barrel for squeezing and crushing the juicing object by a screw thread formed on a part of the screw; and a mesh cylinder for separating the juice produced by the screw. The driving part for providing a rotating force to the juice extractor includes a motor and a decelerator. The motor is connected to the driving shaft for transmitting a rotational force to the screw. For this purpose, the drive shaft penetrates the lower part of the juice extractor and is connected to the screw.

Generally, the mesh cylinder has a mesh structure. If the mesh tube has a mesh structure, the mesh tube is easily clogged with the object to be juiced, and thus there is a problem that the juicing efficiency is low. Further, since the mesh is formed finely, there is a problem that it is difficult to clean the object to be juiced that is clogged in the mesh. Further, various filter structures are conceivable, but it is difficult to apply the filter structure to a juicer of a squeezing type using a screw performing a simple filtering function or the like.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a separation screw which is detachably constructed by two modules so that the screw performs the function of a conventional net drum and is easily cleaned, and a juicer using the same.

Said object is achieved by the inventive separating screw. The separation screw of the present invention comprises: a first module comprising a plurality of kerfs; and a second module detachably coupled to the first module and including a rib inserted into the slit, wherein when the first module is coupled to the second module, a gap is formed between the rib and the slit to allow external juice to flow into the inside.

Furthermore, the object is achieved by the separating screw according to the invention. The separation screw of the present invention comprises: a first module including a first body and a plurality of slits formed on the first body; and a second module including a second body detachably coupled with the first body and a rib inserted into the slit, wherein when the first module is coupled with the second module, a gap is formed between the rib and the slit to allow external juice to flow into the inside.

Here, the second body may be formed to be accommodated inside the first body.

Here, the portion of the first body where the slits are not formed and the portion of the second body where the ribs are not formed may be radially overlapped and combined.

Here, the rib may be formed to protrude from an outer side surface of the second body.

Here, the gap may be formed at a lower end portion of the separation screw.

Here, a screw thread may be formed on an outer side surface of at least one of the first body and the second body.

Here, screw threads may be respectively formed on an outer side surface of the first body and an outer side surface of the rib of the second body, and the screw threads are continuously connected when the first module and the second module are combined.

Here, the slits of the first body may be formed in a direction crossing the screw flight.

Here, the slit may be formed to be larger toward the radially inner side.

Here, the slit may be formed to be smaller toward a lower side in the longitudinal direction.

Here, the width of the slit may be formed to be wider toward the radially inner side.

Here, when the second body is received inside the first body, a separate space may be formed between the first body and the second body.

Here, the partitioned space may be formed to be wider toward a lower side.

Here, a first inclined surface may be formed at an edge portion in a longitudinal direction of an upstream side of the slit with reference to a rotation direction of the separation screw.

Here, a second inclined surface may be formed at a corner portion in the longitudinal direction on the downstream side of the rib with respect to the rotation direction of the separation screw.

Here, a support portion for supporting between the first body and the second body may be provided between an inner side surface of the first body and an outer side surface of the second body.

Here, the support portion may be formed to protrude from at least one of an inner side surface of the first body or an outer side surface of the second body and to support.

Here, the support portion may include a first support portion protruding from an inner side surface of the first body and a second support portion protruding from an outer side surface of the second body, and at least one side surfaces of the first support portion and the second support portion may be formed to be in contact with each other.

Here, an insertion groove into which an end of the supporting portion is inserted may be formed on an inner side surface of the first body or an outer side surface of the second body.

Here, the contact portion of the support portion may be formed of a gasket made of silicone or elastic material.

Here, the second body may have a cylindrical shape with one closed surface.

Here, a key protrusion may be formed on an inner side of the first body, and a key groove into which the key protrusion is inserted may be formed on a closed surface of the second body.

Here, a magnet may be disposed on a sealing surface of the second body, and the first module and the second module may be coupled to each other by a magnetic force.

Here, a mounting groove may be formed at a lower side of the second body, and a packing may be disposed in the mounting groove.

Here, a first step may be formed on the inner circumferential surface of the lower end of the first body, and a second step corresponding to the first step may be formed on the outer circumferential surface of the lower end of the second body.

Here, a screw shaft may be disposed at the center of the inner circumference of the first body, and a through hole into which the screw shaft is inserted may be formed on the closed surface of the second body.

Here, the screw shaft and the through hole may be formed in an angular shape.

Here, the angle of the angular axis to the angular hole may be 90 degrees.

Here, a first slit maintaining step may be formed at an upper side of the slit.

Here, a second slit maintaining step may be formed at a lower side of the rib.

Here, a separation knob protruding inward in a radial direction may be formed on an inner circumferential surface of the second body.

Here, the brush formed of an elastic material may be coupled to the separation handle.

Here, a juice discharge hole may be formed at a lower end portion of the second body.

Furthermore, the object is achieved by the juice extractor of the present invention. The juice extractor of the present invention includes: the above-mentioned separation screw; and a juice extracting barrel which accommodates the separation screw and has an inner peripheral surface on which first ribs are formed at predetermined intervals.

Here, the first rib may be formed in the entire length direction of the juice extracting tube, and a second rib having a shorter length than the first rib may be formed at a lower portion of the inner circumferential surface of the juice extracting tube.

Here, a third rib having a length shorter than the first rib and a length longer than the second rib may be formed between the first ribs or between the second ribs.

Here, a juice discharge groove for discharging juice, which is separated into juice and dregs between the separation screw and the juice extracting cylinder and then flows into the separation screw, may be formed in an inner bottom plate surface of the separation screw of the juice extracting cylinder, and a dreg discharge groove for discharging the dregs may be formed in an outer bottom plate surface of the separation screw of the juice extracting cylinder.

Here, the protruding surface of the first rib may be formed to be inclined at a predetermined angle from an upper portion to a lower portion, the outer circumferential surface of the separation screw may be formed to be inclined at a predetermined angle with respect to a vertical line, and the angle formed by the protruding surface of the first rib and the angle formed by the outer circumferential surface of the separation screw may be the same.

Here, the radius of the inner side surface of the juice extracting tube may be smaller from the upper portion to the middle portion, and the radius may be larger from the middle portion to the lower portion.

Here, the inner surface of the juice extracting tube may be formed to be closer to the separation screw from the upper portion to the middle portion.

Here, the inner side surface of the juice extracting barrel may be formed to be farther from the separation screw from the middle portion to the lower portion.

Here, the inner side surface of the juice extracting barrel may be formed to constantly maintain a distance from the separation screw between the middle portion and the lower portion.

The embodiment of the invention eliminates the prior net drum, thereby having simple structure and reducing the manufacturing cost.

Moreover, compared with the prior net barrel, the net barrel is simpler and more convenient to clean, and the juice extraction efficiency can be improved.

Further, the problem that the mesh is clogged in the conventional net drum is fundamentally solved, so that a brush, which is required to be provided in the conventional vertical juicer, is not required, and various components for driving the brush are not required.

Drawings

Fig. 1 and 2 are exploded perspective views of a juicer according to an embodiment of the present invention.

Fig. 3 and 4 are exploded perspective views of the separation screw according to the embodiment of the present invention shown in fig. 1 and 2.

Fig. 5 is a combined perspective view of the separation screw of fig. 3 and 4.

Fig. 6 is a sectional view taken along line I-I' of fig. 5.

Fig. 7 is a sectional view taken along line ii-ii' of fig. 5.

Fig. 8 is a sectional view taken along line iii-iii' in fig. 6.

Fig. 9 is a perspective view of the juice extractor of fig. 1 and 2.

FIG. 10 is a cross-sectional view of a juice extractor with the use of the separation screw of the present invention.

Fig. 11 and 12 are exploded perspective views of a first modification of the separation screw.

Fig. 13 and 14 are exploded perspective views of a second modification of the separation screw.

Figure 15 illustrates various embodiments of the support portion of figure 10.

Fig. 16 is an exploded perspective view of a third modification of the separation screw.

Fig. 17 is a combined perspective view of fig. 16.

FIG. 18 is a sectional view taken along line IV-IV' of FIG. 17.

Fig. 19 is an exploded perspective view of a fourth modification of the separation screw.

Fig. 20 is a combined perspective view of fig. 19.

Fig. 21 is a cut-away perspective view of a juice extractor with the separation screw of fig. 20 applied thereto.

Fig. 22 and 23 are exploded perspective views of a fifth modification of the separation screw.

FIG. 24 is a cut-away perspective view of a juice extractor with the use of the separation screw of the present invention.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described based on the drawings. The present invention is not limited to the embodiments disclosed in the present specification or the description thereof, but the technical spirit and scope of the present invention will be described in detail only for the purpose of facilitating the implementation of the present invention by those skilled in the art.

Note that, since the respective structures shown in the drawings are arbitrarily illustrated for convenience of explanation, the present invention is not limited to the structures shown in the drawings, and the sizes and shapes of the structural elements shown in the drawings may be exaggerated for the sake of clarity and convenience of explanation. Therefore, terms specifically defined in consideration of the structures and actions of the present invention may be different according to the intention or the custom of the user or the operator, and the meanings of the terms should be determined based on the entire contents of the present specification.

For the purposes of this specification, unless otherwise specified, "upper side", "upper end" or the like refers to the side of material introduction or a portion or end adjacent thereto, and "lower side", "lower end" or the like refers to the side opposite to the side of material introduction or a portion or end adjacent thereto.

Fig. 1 and 2 are exploded perspective views of a juicer according to an embodiment of the present invention, fig. 3 and 4 are exploded perspective views of a separation screw according to an embodiment of the present invention shown in fig. 1 and 2, fig. 5 is an assembled perspective view of the separation screw of fig. 2, fig. 6 is a sectional view taken along line I-I ' of fig. 5, fig. 7 is a sectional view taken along line ii-ii ' of fig. 5, fig. 8 is a sectional view taken along line iii-iii ' of fig. 6, fig. 9 is a perspective view of a juicer cartridge shown in fig. 1 and 2, and fig. 10 is a sectional view of a juicer cartridge to which the separation screw of the present invention is applied.

As shown in fig. 1 and 2, a juicer according to an embodiment of the present invention may include a hopper 100, a juice extracting barrel 200, and a separation screw 300.

The hopper 100 is detachably coupled to an upper portion of the juice extracting tube 200, and objects to be extracted (for example, vegetables, grains, fruits, etc.) are introduced into the juice extracting tube 200 after being put into the hopper 100.

The juice extracting cylinder 200 may be formed in a cylindrical shape with an open upper portion, and the separation screw 300 may be disposed inside. A juice outlet 220 capable of discharging juice and a residue outlet 230 capable of discharging residue may be formed at one side of the lower portion of the juice extracting barrel 200. When the separation screw 300 rotates, the juicing objects are separated into dregs and juice by the interaction between the juicing barrel 200 and the separation screw 300, the dregs are left at the radially outer lower end portion of the separation screw 300, and the juice moves to the radially inner side of the separation screw 300 and to the lower end portion. Thereafter, the dregs are discharged through the dregs discharge port 230, and the juice is discharged through the juice discharge port 220 through a path different from a path through which the dregs are discharged.

A tub hole 240 is formed at the center of the lower portion of the juice extracting tub 200. A drive shaft (not shown) may be inserted through the barrel aperture 240 and coupled with a separation screw 300 located inside the juicer barrel to transmit power. The inner circumferential surface of the cylindrical hole 240 may have a shape corresponding to the shape of the drive shaft to enable insertion of the drive shaft.

The separation screw 300 is rotated by receiving power from the driving shaft inside the juice extracting cylinder 200, separates the juice inflow through the funnel 100 into dregs and juice by interaction with the juice extracting cylinder 200, and the separated juice moves to the inside of the separation screw 300 and is discharged through the juice discharge port 220. The separation screw 300 of the present invention is configured to be separated and combined by the first module 10 and the second module 20, and the separation screw 300 of an embodiment of the present invention will be described in detail with reference to fig. 3 to 8.

The separation screw 300 of an embodiment of the present invention may include two cylindrical first and

second modules

10 and 20.

The first module 10 comprises: a first body 14 having a substantially cylindrical shape, which is hollow and has an open lower portion; and a plurality of slits 15 extending in a length direction around the first body 14. The rod-shaped slit 15 extending in the longitudinal direction is shown in the figure, but the rod-shaped hole and the egg-shaped hole are not limited thereto as long as the hole can be seen to intersect with the screw flight protrusion 13 described later. In the figure, the slits 15 are formed at equal intervals around the first body 14, but not limited thereto.

On the outer circumferential surface of the first body 14, a screw flight protrusion 13 (hereinafter, also referred to as "screw flight" for convenience) may be formed as an oblique line with respect to the longitudinal direction (or the up-down direction). The screw flight 30, which may be formed by at least one flight, comminutes and/or squeezes the juice objects through interaction with the juice extractor barrel 200.

As shown in fig. 4, a screw shaft 11 coupled with the driving shaft may be formed to extend downward at the inner center of the first body 14. Also, the screw shaft 11 may be protrudingly formed toward the top surface of the first body 14 and rotatably inserted into a receiving hole formed in the bottom surface of the hopper 100. A screw hole 12 for receiving a rotational force of the driving shaft is perforated in a lower portion of the screw shaft 11.

The second block 20 may be formed of a cylindrical second body 22 having a substantially closed upper portion, and a plurality of ribs (rib)21 protruding from an outer surface of the second body 22 in a shape corresponding to the slit 15 of the first block 10. The rib 21 shown in fig. 3 and 4 is formed integrally with the second body 22 in a shape protruding from the second body 22, but may be formed separately so as to be inserted into the second body 22. Further, the rib 21 is preferably formed to have a wider width from the upper portion to the lower portion of the rib 21. Accordingly, the rib 15 is preferably formed to have a wider width from the upper portion to the lower portion of the rib 15. As described above, as the rib 21 and the slit 15 are formed to be wider from the upper portion to the lower portion, when the rib 21 is inserted into the slit 15 to couple the two

modules

10 and 20 while moving the first module 10 and the second module 20 up and down, the slit 15 and the rib 21 can be stably coupled by sliding.

A screw flight protrusion 29 (hereinafter, also referred to as a "screw flight" for convenience) may be formed on the outer peripheral surface of the second block 20, as in the first block 10. In the case of the second module 20, the screw thread protrusion 29 may be formed on the outer circumferential surface of the rib 21. At this time, depending on the shape of the screw flight and the position of the rib 21, the screw flight projection 29 may not be formed on the outer circumferential surface of part of the rib 21.

Also, when the first module 10 is combined with the second module 20, as shown in fig. 5, the

screw threads

13, 29 formed on the first module 10 and the second module 20 may be continuously formed. Although some sections are occasionally broken, the

screw flights

13, 29 are formed continuously in general. For this reason, the outer diameter of the first body 14 forming the slit 15 may be the same as the outer diameter of the rib 21, and the protruding heights of the

screw thread protrusions

13 and 29 may be the same.

As shown in fig. 3, a through-hole 30 inserted into the screw shaft 11 may be formed at the upper end surface 27 of the second block 20. In order to fix the coupling position of the first module 10 and the second module 20 and prevent the relative rotation of the first module 10 and the second module 20, the through-hole 30 may be an angular hole, and the screw shaft 11 may be formed as an angular shaft corresponding to the shape of the through-hole 30. Although fig. 3 and 4 illustrate the through-hole 30 and the screw shaft 11 as rectangular shapes, the shape of the through-hole 30 is not limited to the illustrated example. In this specification, the first block 10 and the second block 20 can be fixed at four different positions by the screw shaft 11 as a quadrangular shaft and the through hole 30 as a quadrangular hole.

At this time, in order to align the screw thread protrusion 13 formed on the first module 10 with the screw thread protrusion 29 formed on the second module 20, the coupling positions of the first module 10 and the second module 20 may be aligned. That is, if the angle formed between the reference point of the first module 10 and the reference point of the second module 20 in the circumferential direction is 0 degree at the position where the first module 10 and the second module 20 are completely coupled, the first module 10 and the second module 20 can be completely coupled through the angular shaft and the angular hole only when the reference point of the first module 10 and the reference point of the second module 20 have a predetermined angle (for example, 90 degrees, 180 degrees, 270 degrees) in the circumferential direction. At this time, the screw thread protrusions 13 formed on the first block 10 and the screw thread protrusions 29 formed on the second block 20 may be aligned (i.e., a continuous screw thread may be formed). In order to make the coupling position of the first module 10 and the second module 20 constant, a space in which the intervals between the plurality of ribs 21 are relatively narrow and a space in which the intervals are relatively wide may be periodically formed at a set angle in the circumferential direction.

Also, the screw thread protrusion 29 may not be formed on the outer circumferential surface of the rib 21 of the second block 20. At this time, the same or similar juicing efficiency as that in the case where the screw flight protrusion 29 is formed on the outer circumferential surface of the rib 21 is achieved by forming the width of the rib 21 narrower.

A mounting groove 25 may be formed at a lower side of the second module 20 to mount the separation screw 300 to the juice extracting barrel 200. A mounting protrusion (not shown) corresponding to the mounting groove 25 may be formed to protrude upward on the lower surface of the juice extracting tube 200. A packing may be provided in the mounting groove 25 so that the mounting groove 25 can be coupled in a manner of covering the mounting protrusion, whereby it is possible to prevent dregs separated during the juicing process from flowing into the inside of the screw 300.

As shown in fig. 3 and 4, a first step 16 may be formed at a lower end of the first body 14 of the first module 10, and a second step 23 may be formed at a lower side of the second body 22 accordingly. The pressure transmitted to the screw 300 is received by the combination of the second step 23 of the second module 20 and the first step 16 of the first module 10, and the dross is prevented from flowing into the inside of the screw 300.

In addition, a magnet housing portion 26 may be formed on an upper end surface 27 of the second module 20. In order to prevent the second module 20 from being easily separated from the first module 10 when the second module 20 is coupled to the first module 10, the magnet housing 26 is provided with a magnet, and the magnet or magnets having opposite polarities are provided inside the first module 10, so that the second module 20 can be stably coupled to the first module 10 by magnetic force.

When the first block 10 and the second block 20 formed as described above are coupled, since the inner diameter of the first body 14 of the first block 10 is larger than the outer diameter of the second body 22 of the second block 20, the first block 10 is coupled to the second block 20 in such a manner as to receive and cover the second block 20, and if the rib 21 of the second block 20 is inserted into the slit 15 of the first block 10 and coupled, a portion of the first body 14 where the slit 15 is not formed and a portion of the second body 22 where the rib 21 is not formed are coupled in a radially overlapped manner.

At this time, when the rib 21 of the second module 20 is inserted into the slit 15 of the first module 10, a predetermined gap a is formed between the slit 15 and the rib 21. The juice flows into the inside of the separation screw 300 through the gap a and is discharged, and dregs of the separated juice may be collected at a lower portion between the separation screw 300 and the juice extracting tub 200 and discharged to the outside. The gap a may be formed in the entire length direction of the separation screw 300, but may be preferably formed in a designated length at the lower end portion of the separation screw 300.

In this case, as shown in fig. 6, the slit a may be formed to be larger in the radial direction. For example, as shown in the drawing, if the width of the slit 15 is formed to be wider toward the radial inner side, the slit a formed between the slit 15 and the rib 21 may be formed to be larger toward the radial inner side when the rib 21 is inserted into the slit 15. Thus, the slit a is formed to be larger toward the radial inner side, and the problem that the slit a is blocked by dregs or obstructs the flow of juice during the juicing process can be prevented. In the present embodiment, the slit a is formed to be larger on the radially inner side by the shape of the slit 15, but the shape of the slit a may be formed by various methods such as the shape of the rib 21 or the combination of the shapes of the rib 21 and the slit 15.

Also, as shown in the enlarged view of fig. 5, the slit a may be formed to be smaller toward the lower side in the longitudinal direction. As described above, the shape change of the longitudinal slit a can be formed by the same method as the shape of the radial slit a, and by combining the shapes of the slit 15 and the rib 21, various shapes can be formed. The slit a may be formed to be gradually narrower from the upper portion to the lower portion, or may be formed to be gradually wider at the upper portion and narrower at the lower portion with a predetermined point as a center.

Since the lower side of the separation screw 300 is subjected to a greater pressure, the gap a of the lower side is preferably formed to be narrow. For example, in the case of a hard object to be squeezed, such as a carrot, most of the juice may be discharged through the slit a formed at the lower side during the squeezing process. In the case of a soft juicing object such as a tomato, juice can be discharged not only through the slit a formed at the lower side during the squeezing process but also through the process of rising toward the wide slit a at the upper side by the juicing object accumulated in the slit a formed at the lower side. Thus, when the size of the slit a in the longitudinal direction is not uniform, the juice extraction efficiency can be improved for both a juice extraction target that is hard such as a carrot and a juice extraction target that is soft such as a tomato.

Also, when the first module 10 is combined with the second module 20, as shown in fig. 6 to 8, a play may be formed between the outer side surface of the second body 22 and the inner side surface of the first body 14, thereby forming a partitioned space (please refer to fig. 6 to 8, in which the juice extracting barrel 200 is collectively illustrated with a dotted line for the sake of understanding). The juice flowing into the partitioned space through the slit a can be moved to the lower portion between the first module 10 and the second module 20 by the play. At this time, a juice discharge hole 28 may be formed at the lower side of the second body 22. Juice accumulated in the lower portion of the partitioned space between the first and

second modules

10 and 20 through the juice discharge hole 28 may flow into the inside of the separation screw 300.

At this time, as shown in fig. 8, the clearance becomes wider as it gets closer to the lower side of the separation screw 300. The play can ensure that juice flows into a space between the first and

second modules

10 and 20 through the slits a and can flow.

Next, referring to fig. 9 and 10, the juice extracting barrel 200 will be described in more detail, and the juice extracting barrel 200 accommodates the separation screw 300 therein, and functions to separate a juice extracting object into juice and dregs by rotating the separation screw 300.

A plurality of first ribs 260 and second ribs 250 may be formed on the inner circumferential surface of the juice extracting barrel 200 at predetermined intervals in the circumferential direction. The first and

second ribs

260 and 250 may be formed in the length direction or inclined at an acute angle with respect to the length direction. As the separation screw 300 rotates, the material can be extruded or pulverized by the

screw threads

13, 29 and the interaction of the first ribs 260 and the second ribs 250. The first rib 260 may further perform a function of guiding the objects for juicing to the lower portion of the juice extracting tub 200. Also, the first rib 260 may perform a function of adjusting the position of the separation screw 300 and adjusting the juicing space, in addition to a function of pressing and pulverizing the material.

The first rib 260 may be formed in the entire length direction of the juice extracting tub 200, and the second rib 250 may be formed only at a position of a portion of the length direction of the juice extracting tub 200 (in more detail, a lower portion of the juice extracting tub 200). That is, the length of the first rib 260 may be formed to be greater than the length of the second rib 250.

Without the first and

second ribs

260 and 250, the object of juicing may not fall down to be stagnated, or the pressing or crushing force is weak or may not occur. Also, the first and

second ribs

260 and 250 can prevent the deformation of the juice extracting tub 200, which may be caused by the pressing force during the process in which the material is transferred and pulverized by the screw of the separation screw 300.

In general, the first rib 260 and the second rib 250 function to sandwich the material thrown into the inside of the juice extracting barrel 200 into the narrow portion abutting the screw 300 and to be movable downward. The first and

second ribs

260 and 250 may perform a function of dropping the material downward while sufficiently crushing and squeezing the material together with the

screw threads

13 and 29. Therefore, the first ribs 260 and the second ribs 250 do not need to be formed in the longitudinal direction of the juice extracting tube 200, and may be formed to intersect with the screw flights 13 and 19, that is, may be formed to have a predetermined slope with respect to the longitudinal direction in order to effectively transfer and extrude the material.

Further, since the first ribs 260 are formed long in the longitudinal direction on the inner circumferential surface of the juice extracting barrel 200, not only a function of guiding and pressing the material but also a reinforcing function of preventing deformation of the juice extracting barrel 200 due to a pressing force generated during the transfer and pressing of the material by the

screw threads

13, 29 and a function of adjusting the receiving position of the screw 300 in the juice extracting barrel 200 and adjusting the juice extracting space can be performed.

Also, the protruding height of the first rib 260 may be formed to have the same height from the upper portion to the lower portion, but may also be formed to be gradually lower from the upper portion to the lower portion or at least one protruding step portion 260a may be formed at a middle portion in the length direction of the first rib 260. The protruding height of the upper portion of the first rib 260 may be lower than the protruding height of the lower portion of the first rib 260 with reference to the stepped portion 260 a.

A third rib 270 may be further formed on the inner circumferential surface of the juice extracting tub 200. The third ribs 270 may be formed between the first ribs 260 or between the second ribs 250.

For example, a plurality of first ribs 260 may be formed on the inner circumferential surface of the juice extracting tube 200 in the circumferential direction, a plurality of second ribs 250 may be formed between the plurality of first ribs 260, and a plurality of third ribs 270 may be formed between the first ribs 260 and the second ribs 250 and/or between the second ribs 250. It is preferable that the length of the third rib 270 in the up-down direction may be formed shorter than the first rib 260 and longer than the second rib 250.

The first rib 260, the second rib 250, and the third rib 270 will be described in more detail below.

The first rib 260 serves to perform a function of transferring the material thrown into the inside of the juice extracting tub 200 to the lower portion and primarily pulverizing the juice extracting object. For this, the first rib 260 may be vertically formed in the up-down direction on the inner circumferential surface of the juice extracting tub 200. The protruding height h of the first rib 260 may be formed to have the same height h from the upper portion to the lower portion of the juice extracting tub 200. Preferably, the protruding height h of the first rib 260 may be formed in a form gradually lowered from the upper portion to the lower portion of the juice extracting tub 200.

The number and arrangement of the first ribs 260 may be variously changed as necessary in consideration of design conditions and juicing efficiency.

In the embodiment of the present invention, the first rib 260 is formed to be vertically formed along the vertical direction of the juice extracting tube 200, but the scope of the present invention is not limited thereto. That is, the first ribs 260 may also be formed to cross the

screw flights

13, 29 of the separation screw 300 with each other and have a prescribed slope, so that the objects of juice extraction are primarily pulverized while being transferred downward by the interaction of the separation screw 300 and the first ribs 260 of the juice extractor 200.

The first rib 260 may be formed to be inclined downward from the upper portion to the lower portion of the juice extracting tub 200, and a stepped portion 260a protruding toward the separation screw 300 to form a step may be formed at a middle portion thereof. The position, number, or projection height of the stepped portion 260a can be variously modified according to the shape of the separation screw 300 and the design conditions of the

screw flights

13, 29.

The second rib 250 serves to perform the following functions: that is, the separation screw 300 rotates to perform fine and uniform secondary grinding on the object to be juiced, which is transferred to the lower portion by the rotation of the separation screw 300 accommodated in the juice extracting tube 200.

For this, the second rib 250 may be formed on the lower inner circumferential surface of the juice extracting barrel 200. The second rib 250 may be formed to have a length in the up-down direction thereof shorter than that of the first rib 260. That is, the first rib 260 is formed entirely from the upper portion to the lower portion of the juice extracting barrel 200, and the second rib 250 is formed only to a set height in the lower portion of the juice extracting barrel 200.

If the second rib 250 is formed at the middle portion of the inside of the juice extracting tube 200, the material is finely crushed at the middle portion of the juice extracting tube 200 by the second rib 250 and the separation screw 300, so that the particle size of the object to be extracted juice is sharply reduced, and the object to be extracted juice is not caught by the second rib 250 at the lower portion of the juice extracting tube 200 and is rotated together with the

screw threads

13 and 29 of the separation screw 300. Therefore, the object to be juiced cannot be smoothly transferred downward along the

screw flights

13, 29 of the separation screw 300, and the object to be juiced may be stagnated in the juice extracting tube 200. If the juice-extracting object stays in the interior of the juice extracting tube 200, the juice-extracting object stays more severely due to the juice-extracting object further put in, and the juice-extracting object must be forcibly pressed by using another tool, which is inconvenient.

In order to prevent such a problem, the second rib 250 according to the embodiment of the present invention is formed at the lower portion of the juice extracting tube 200, so that the size of the particles of the juice extracting object is not rapidly changed but is changed in stages, and thus the juice extracting object can be smoothly transferred to the lower portion by the

screw threads

13 and 29 and the first rib 260, and the juice extracting object can be more finely crushed at the lower portion of the juice extracting tube 200 by the second rib 250.

In addition, the second ribs 250 are formed at the lower portion of the juice extracting cylinder 200, so that the pressure of the dregs to be extracted against the juice extracting cylinder 200 and the separating screw 300 is gradually increased in the process of smoothly transferring the objects to be extracted from the upper portion to the lower portion of the juice extracting cylinder 200 by the separating screw 300 and the first ribs 260. Due to such pressure, juice extracted from the object of juice extraction can flow into the inside of the separation screw 300 through the slit a formed between the slit 15 of the first block 10 and the rib 21 of the second block 20 of the separation screw 300 and be smoothly discharged.

Third ribs 270 shorter than the first ribs 260 and longer than the second ribs 250 may be formed between the first ribs 260 or between the second ribs 250.

The third rib 270 serves to perform a function of assisting the first rib 260. That is, if the installation interval of the first ribs 260 is excessively large, there is a possibility that the object to be juiced cannot smoothly move downward to the lower portion of the juice extracting tube 200, and therefore, the third ribs 270 shorter than the first ribs 260 and longer than the second ribs 250 are formed between the first ribs 260, thereby enabling the object to be juiced to smoothly move to the lower portion of the juice extracting tube 200.

Referring to fig. 10, the relationship between the juice extractor barrel 200 and the separation screw 300 is illustrated.

As shown in fig. 10, the inner circumferential surface of the upper portion of the juice extracting tube 200 is inclined at a predetermined angle a with respect to the vertical line. That is, the inner circumferential surface of the juice extracting tube 200 is formed to have a diameter that is shorter from the upper portion to the lower portion.

The first rib 260 formed on the inner circumferential surface of the juice extracting tub 200 is formed to have a protruding height gradually lower from the upper portion to the lower portion, thereby being formed to be constantly inclined in the up-down direction. At this time, the outer side surface of the first rib 260 is formed to be inclined at a predetermined angle B with respect to the vertical line. That is, the first rib 260 is formed to be inclined toward the center of the juice extracting tub 200 from the upper portion to the lower portion. At this time, as shown in the right enlarged view of fig. 10, the outer side surface of the first rib 260 may be formed to be coincident with or nearly parallel to the straight line formed by the

screw flights

13, 29 of the separation screw formed in the up-down direction. That is, the first rib 260 may be formed to conform to or be parallel to the outer shape of the separation screw 300 such that the first rib 260 is in contact or almost in contact with the

screw threads

13, 29 of the separation screw 300.

The outer circumferential surface of the separation screw 300 accommodated in the juice extracting tube 200 is formed to be inclined at a predetermined angle C with respect to a vertical line. That is, the diameter of the outer circumferential surface of the separation screw 300 may be formed to be smaller from the upper portion to the lower portion.

At this time, it is preferable that the angle B formed by the outer side surface of the first rib 260 and the angle C formed by the outer circumferential surface of the separation screw 300 and the vertical line are identical to each other as described above. That is, the outer side surface of the first rib 260 is formed to be coincident with or parallel to the outer circumferential surface of the separation screw 300 and almost coincident therewith.

In this case, as shown in the right enlarged view of fig. 10, the inner surface of the juice extracting barrel 200 is preferably formed to be closer to the separation screw 300 from the upper portion to the middle portion. Further, the juice extractor 200 may be formed to be farther from the separation screw 300 from a predetermined position in the middle to the lower portion. This is because the juicing object is crushed and gradually reduced in size from the upper portion to the middle portion of the juicing barrel 200, and thus the distance from the separation screw 300 may be gradually reduced until the middle portion is designated, and then the distance from the separation screw 300 may be gradually increased from the middle portion to the lower portion in order to secure a movement space of the dregs. At this time, as shown in the other enlarged view on the right side, the inner surface of the juice extracting barrel 200 may be formed to be spaced apart from the separation screw 300 by a predetermined distance from the middle portion to the lower portion.

As described above, according to the embodiments of the present invention, the conventional mesh drum is eliminated, so that the structure is simple and the manufacturing cost can be reduced. In addition, the conventional net barrel is deleted, so that the cleaning is simpler and more convenient, and the juice extraction efficiency can be improved.

Next, various modifications of the separation screw described with reference to fig. 11 to 23 will be described.

Fig. 11 and 12 are exploded perspective views of a first modification of the separation screw, fig. 13 and 14 are exploded perspective views of a second modification of the separation screw, fig. 15 illustrates various embodiments of the support portion shown in fig. 10, fig. 16 is an exploded perspective view of a third modification of the separation screw, fig. 17 is an assembled perspective view of fig. 16, fig. 18 is a sectional view taken along line iv-iv' of fig. 17, fig. 19 is an exploded perspective view of a fourth modification of the separation screw, fig. 20 is an assembled perspective view of fig. 19, fig. 21 is a sectional perspective view of a juice extractor to which the separation screw shown in fig. 20 is applied, and fig. 22 and 23 are exploded perspective views of a fifth modification of the separation screw.

According to the modification shown in fig. 11 and 12, a first slit holding step 50 may be formed to protrude from an upper side surface of the slit 15. Also, a protruding second slit retaining step 55 may be formed at a lower side of the rib 21. During the rotation of the separation screw 300 in the juicing process, the size of the gap a between the slit 15 and the rib 21 may be changed. By the first slit holding step 50 and the second slit holding step 55, the size of the slit a formed between the slit 15 and the rib 21 can be maintained constant also during the juicing process.

According to the modification shown in fig. 13 and 14, in order to fix the coupling position of the first block 10 and the second block 20, a key protrusion 40 may be formed on the bottom surface of the upper surface of the first block 10, and a key groove 45 into which the key protrusion 40 is inserted may be formed on the top surface of the second block 20. By inserting the key protrusion 40 into the key groove 45, the coupling position, rotation, and inclination of the first block 10 and the second block 20 can be restricted.

As shown in fig. 13 and 14, a support portion 31 protruding from the outer surface may be formed on the outer surface of the second body 22. The support portion 31 has a protruding height smaller than that of the rib 21, and the support portion 31 closely contacts the inner side surface of the first body 14 and the outer side surface of the second body 22 when the first module 10 is coupled to the second module 20 to support a strong pressure in a radial direction and a circumferential direction generated when the objects of the sludge and the juice are pressed, thereby preventing noise generated when the separation screw 300 rotates.

Fig. 15 illustrates various embodiments of such a support 31. First, as shown in (a), the support portion 31 may be configured to be protrudingly formed from the outer side surface of the second body 22 and to be in contact with the inner side surface of the first body 14, and conversely, as shown in (b), may be protrudingly formed from the inner side surface of the first body 14. As shown in (c) and (d), the first support portion 31a protruding from the inner surface of the first body 14 and the second support portion 31b protruding from the outer surface of the second body 22 may be formed, and one side surfaces of the first support portion 31a and the second support portion 31b may be formed to contact each other. That is, the support portion 31 may be formed such that the side surfaces of the first and

second support portions

31a and 31b contact each other as shown in (c) or (d) while the first support portion 31a contacts the outer side surface of the second body 22 and the second support portion 31b contacts the inner side surface of the first body 14. As the both side surfaces of the first support part 31a and the second support part 31b are thus formed to contact each other, the strong pressure in the circumferential direction can be supported more stably. As shown in (e), the inner surface of the first body 14 may be coupled to each other in an insertion manner by forming an insertion groove 32 for inserting an end of the support portion 31 protruding from the outer surface of the second body 22.

In the present embodiment, the support portion 31 is integrally formed to protrude from the inner surface of the first body 14 or the outer surface of the second body 22, but the support portion 31 may be formed of another member inserted between the first body 14 and the second body 22. The form of the support portion 31 is not limited to the above-described form, and may be modified in various ways as long as it is provided between the inner surface of the first body 14 and the outer surface of the second body and supports each other.

Also, the contact portion of the support portion 31 may be formed of a gasket of a silicon rubber or an elastic material to absorb pressure and further reduce noise caused by vibration.

According to the modification shown in fig. 16 to 18, the first inclined surface 14-1 may be formed at the corner portion in the longitudinal direction on the upstream side of the slit 15 of the first block 10 with respect to the rotation direction of the separation screw 300 toward the slit 15. A second inclined surface 21-1 may be formed on the rib 21 of the second block 20, with the downstream-side edge removed, with respect to the screw rotation direction.

For example, as shown in fig. 18, when the separation screw 300 is rotated in a counterclockwise direction and the object of juicing moves in a clockwise direction, the first inclined surface 14-1 may be formed at a right-side corner portion of the slit 15 and the second inclined surface 21-1 may be formed at a left-side corner portion of the rib 21.

When the separation screw 300 rotates, the object to be juiced moves while being crushed between the separation screw 300 and the juice extracting tube 200, and the moving speed of the object to be juiced is slower than the rotating speed of the separation screw 300, so that the object to be juiced relatively moves in the direction opposite to the rotating direction of the separation screw 300. Therefore, the rotation direction of the separation screw 300 is opposite to the moving direction of the object to be juiced.

In this way, if the first inclined surface 14-1 is formed at the corner portion of the slit 15 and the second inclined surface 21-1 is formed at the rib 21, the object to be juiced can be prevented from being caught in the gap a formed between the slit 15 of the first block 10 and the rib 21 of the second block 20.

More specifically, when the separation screw 300 rotates in the counterclockwise direction, dregs of the juice extracting object located between the screw 300 and the juice extracting tube 200 relatively move in the clockwise direction. When the dross moves in the clockwise direction, it moves over the rib and the first inclined surface, and is pressed and crushed by the step between the right side edge of the rib 21 and the first inclined surface 14-1, so that the dross can be prevented from being caught in the gap a between the right side edge of the rib 21 and the edge between the first inclined surface 14-1. Also, the dross is pressed and crushed by the step of the right second inclined surface 21-1 of the rib 21 and the left corner portion of the slit 15, so that the dross can be prevented from being caught in the gap a between the right second inclined surface 21-1 of the rib 21 and the left corner portion of the slit 15.

According to the modification illustrated in fig. 19 to 21, in order to easily separate the first module 10 and the second module 20, a separation handle 370 may be formed on an inner circumferential surface of the second module 20.

The separation knob 370 is formed to protrude radially inward at a lower end portion of the inner circumferential surface of the second module 20. Specifically, the separation handle 370 may be formed in a plate shape that is flat in the up-down direction, and may be formed such that its width is narrower from the inner circumferential surface of the second module 20 toward the radial inner side. Also, the separation handle 370 may be symmetrically formed.

A plurality of separation grips 370 may be formed on an inner circumferential surface of the second module 20 as needed. Preferably, a pair of separating handles 370 may be formed on an inner circumferential surface of the second module 20, and the pair of separating handles 370 may be formed at positions facing each other.

Thus, if the separation handle 370 is formed on the inner circumferential surface of the second module 20, the user can easily separate the first module 10 and the second module 20. For example, a user may grasp the upper portion of the first module 10 with one hand, hang the separation handle 370 with the other hand, and separate the first module 10 from the second module 20 in the opposite direction. Therefore, the user can easily separate the second module 20 from the first module 10 using the separation handle 370.

Also, an insertion groove 371 may be formed in a central recess of the release handle 370, and a brush 380 formed of an elastic material may be coupled to the insertion groove 371. The brush 380 may include a brush body 381 to be inserted into the insertion groove 371, and brush blades 383 extending downward from the brush body 381. When the brush 380 is inserted into and coupled to the insertion groove 371 of the detachment handle 370, the brush main body 381 is coupled to the insertion groove 371 in an interference fit manner while being elastically deformed.

As shown in fig. 21, the brush 380 serves to perform a function of sweeping juice accumulated in the juice discharge groove 297 so that juice temporarily accumulated in the juice discharge groove 297 can be smoothly moved to the juice discharge port 220. Therefore, the lower portion of the brush blade 383 may be disposed to be spaced apart from the floor surface of the juice discharge groove 297 by a predetermined distance, or the lower portion of the brush blade 383 may be disposed to be in contact with the floor surface of the juice discharge groove 297 as necessary.

According to the variant illustrated in fig. 22 to 23, the second body may be formed by an annular flange 24 for fixing the upper side of the rib 21.

Various embodiments of the separation screw 300 are described above with reference to the drawings. When the first block 10 and the second block 20 are separably coupled, the slit 15 is formed in the first block 10, the rib 21 inserted into the slit 15 is formed in the second block 20, and the external juice flows into the separation screw 300 through the gap a between the slit 15 and the rib 21, the form of the separation screw 300 is not limited to the description of the drawings, but various modifications including the form and position of the slit and the rib may be implemented.

Next, a discharge process of juice and dregs separated by the separation screw according to the embodiment of the present invention will be described in detail with reference to fig. 24.

The left-side sectional portion of fig. 24 is illustrated to give a good understanding of the passage through which filtered dregs are discharged after juicing between the separation screw 300 and the juice extracting drum 200, and the right-side sectional portion is illustrated to give a good understanding of the juice discharging passage through which filtered juice is discharged while being pressed toward the inner space of the separation screw 300.

Further, a cylindrical hole 240 is formed in the center of the inner bottom surface of the juice extracting cylinder 200. The inner circumferential surface of the bore 240 may include a packing 261 for waterproofing, and may further include a waterproof cylinder 280 inserted to protrude into the inner central space of the separation screw 300 as needed. A guide ridge 282 to which the lower end ring 390 of the separation screw 300 can be attached is formed around the cylindrical hole 240. The guide rib 282 may be formed at a predetermined height on the bottom plate surface of the juice extracting tube 200 so as to be inserted into the inner circumferential surface of the lower end ring 390 of the screw 300, and a guide groove 291 may be formed on the top surface of the guide rib 282. The juice extractor is thus fixedly supported so as to prevent the entry of residues into the drive shaft.

A juice discharge groove 297 is formed in the bottom plate surface of the juice extracting tube 200 radially outward of the tube hole 240, and the juice discharge groove 297 communicates with the juice discharge port 220. A slag discharge groove 298 is formed radially outside the juice discharge groove 297, and the slag discharge groove 298 communicates with the slag discharge port 230.

The juice extracted by the interaction between the separation screw 300 and the juice extracting tube 200 moves between the first block 10 and the second block 20 through the slit a formed between the slit 15 of the first block 10 and the rib 21 of the second block 20, and moves downward through the spaced space between the inner surface of the first body 14 of the first block 10 and the outer circumferential surface of the second body 22 of the second block 20. And then, moves to the inside of the separation screw 300 through the juice discharge hole 28 formed on the second body 22 of the second module 20. The juice that has moved inside the separation screw 300 through the juice discharge hole 28 flows into and collects in a juice discharge groove 297 formed in the circumferential direction in the center of the bottom plate surface of the juice extractor. The juice collected in the juice discharge groove 297 may be discharged through the juice discharge port 220.

Further, the sludge other than the juice extracted by the interaction between the separation screw 300 and the juice extractor 200 moves downward along the space between the outer circumferential surface of the separation screw 300 and the inner circumferential surface of the juice extractor 200, flows along the sludge discharge groove 289 formed on the bottom plate surface of the juice extractor 200, and is discharged outward through the sludge discharge port 230.

The embodiments of the present invention have been described in detail, but the present invention is not limited to the above embodiments, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention within the scope defined by the claims are also within the scope of the present invention.

According to the embodiment of the invention, the conventional net drum is deleted, so that the structure is simple, and the manufacturing cost can be reduced.

Further, the problem that the mesh is clogged in the conventional net drum is fundamentally solved, so that the brush provided in the conventional vertical juicer is not required, and various components for driving the brush are not required.

Description of the reference numerals

10: first module

11: screw shaft

12: screw hole

13. 29: screw thread protrusion

14: first main body

14-1: first inclined plane

15: joint cutting

16: first step

20: second module

21: ribs

21-1: second inclined plane

22: second body

23: second step

24: flange

25: mounting groove

26: magnet housing

27: upper end face

28: juice discharging hole

30: through hole

31: supporting part

100: hopper

200: juice extracting cylinder

220: juice outlet

230: slag discharge port

240: barrel hole

260: first rib

250: second rib

270: third rib

280: waterproof cylinder

297: juice draining groove

298: slag discharge groove

300: separation screw

370: separating handle

371: insertion groove

380: brush with brush head

381: brush body

383: brush blade

a: gap

Claims

1. A juicer, comprising:

A driving shaft receiving a rotational force from a driving part providing the rotational force and transmitting power to the separation screw; and a juice extracting barrel which accommodates the separation screw therein and has a juice discharging port capable of discharging juice and a residue discharging port capable of discharging residue formed on a lower side thereof,

the separation screw includes:

the first module comprises a first main body and a plurality of kerfs formed on the first main body, wherein the first main body is hollow and the lower part of the first main body is open; and

a second module including a second body detachably inserted into the first body and a rib formed at an outer side surface of the second body and inserted into the slit,

when the first module and the second module are combined, a gap is formed between the rib and the slit, so that juice outside the separation screw is flowed into the inside of the separation screw, and the flowed juice is discharged through the juice discharge port.

2. The juicer of claim 1, wherein,

the slits are formed at a predetermined interval on the outer side surface of the first block,

the ribs inserted into the slits are formed to protrude at a predetermined interval on the outer side of the second module,

juice drainage holes are formed between the ribs.

3. The juicer of claim 1, wherein,

a screw shaft is disposed at the center of the inner circumference of the first body,

a waterproof cylinder is formed on the inner bottom plate surface of the juice extracting cylinder, the waterproof cylinder protrudes and is inserted into the inner central space of the separation screw,

the lower part of the screw shaft penetrates through the waterproof cylinder and is connected with the driving shaft.

4. The juicer of claim 1, wherein,

a barrel hole is formed at the center of the inner bottom plate surface of the juice extracting barrel, a filler for water prevention is arranged on the inner circumferential surface of the barrel hole,

when the screw shaft penetrates through the barrel hole and is connected with the driving shaft, the filler is arranged between the screw shaft and the barrel hole.

5. The juicer of claim 1, wherein,

the juice discharging port is connected with the bottom surface of the juice extracting barrel at the lower part of the inner side of the separation screw rod.

6. The juicer of claim 1, wherein,

at least one of a first rib, a second rib and a third rib protruding from the inner circumferential surface of the juice extracting tube at a predetermined interval,

a screw thread is formed on an outer side surface of at least one of the first body and the second body,

Pressing or pulverizing material by interaction of at least one of the first, second, and third ribs with the screw flights.