CN111050605A

CN111050605A - Juice extracting barrel

Info

Publication number: CN111050605A
Application number: CN201780093983.XA
Authority: CN
Inventors: 金煐麒; 金再垣
Original assignee: Hurom Co Ltd
Current assignee: Hurom Co Ltd
Priority date: 2017-08-18
Filing date: 2017-08-18
Publication date: 2020-04-21
Anticipated expiration: 2037-08-18
Also published as: KR20200022500A; WO2019035500A9; CN111050605B; WO2019035500A1; KR102364079B1

Abstract

A juice extraction bucket structure according to one embodiment of the present invention includes: a screw rod which receives a driving force from a transmission shaft to rotate; a mesh drum disposed outside the radius of the screw to discharge the extracted juice or pulverized material; a juicing housing, the inner side of which is provided with the screw and the mesh barrel and is formed into a column shape with an open upper surface; a protrusion protruding upward from a bottom surface of the juicing housing and formed in a shape surrounding the transmission shaft inserted inside thereof; and a bush having an inner side surface surrounding an outer circumferential surface of the transmission shaft to support the transmission shaft, and an outer side surface formed in a shape corresponding to an inner side surface of the protrusion.

Description

Juice extracting barrel

Technical Field

The invention relates to a juicing barrel. More particularly, the present invention relates to a juice extracting tub, in which a driving shaft inserted into an inner side thereof can be stably driven without shaking, and a link gear linked with a brush is detachably installed, thereby being easily washed.

Background

Recently, as health concerns have increased, juice extractors that can be extracted directly from vegetables, grains, fruits, and the like have been used more frequently.

This juicer is generally operated in the same manner as disclosed in korean patent No. 0793852, in which juice is extracted by slowly pressing the input material.

To this end, the juice extractor includes a driving shaft providing a rotational force and a juice extracting tub receiving the rotational force from the driving shaft to perform a function of extracting a juice object.

The juicing barrel comprises: a screw connected to the driving shaft and pressing and crushing the object to be juiced by a spiral part formed locally; and a mesh bucket for separating juice squeezed by the screw.

On the other hand, the juicer based on korean patent No. 0755440 has brushes to scrape the inside of the juice extracting tub and the outer wall of the mesh tub. That is, an intermediate gear is fixed on the bottom surface of the juice extracting tub to be in interlocking engagement with the driving shaft, and receives a driving force from the driving shaft to rotate the brush.

However, according to the above-mentioned granted patent No. 0755440, the intermediate gear is fixed on the bottom surface of the juice extracting tub to receive the driving force from the driving shaft, and thus it is difficult to clean the intermediate gear. In addition, because the brush is engaged on the intermediate gear, juice or residue flowing down along the outer wall of the net barrel arranged at the inner side of the brush in the structure can enter the intermediate gear. Further, juice or residue adhering to the intermediate gear not only hinders transmission of the driving force between the intermediate gear and the brush, but also causes a problem in terms of hygiene.

Furthermore, when a user directly washes the intermediate gear, the user needs to hold the juice extracting tub with one hand and then scrub the intermediate gear inside the juice extracting tub with the other hand, which is inconvenient. Furthermore, since the intermediate gear is not detached from the juice extracting tub and then cleaned, the inner side of the intermediate gear cannot be cleaned.

On the other hand, the juice extractor according to other prior art is to provide a transmission shaft between a driving shaft composed of a motor or the like and an intermediate gear to transmit a rotational force to the intermediate gear. However, the transmission shaft should be always aligned in the axial direction to stably transmit the rotational force to the screw and the intermediate gear, which press or crush the object of juicing. That is, the driving shaft and the driving shaft should be maintained perpendicular to the bottom surface of the juicer while being maintained coaxial with each other.

Further, according to the related art, with the juice extracting tub in which the driving shaft is disposed at the lower side, the load applied to the driving shaft combined with the driving shaft may be considerable, and the structural rigidity may be inevitably weakened. In addition, since the vibration of the drive shaft is directly transmitted to the drive shaft, there may occur a problem that the drive shaft is deviated from the axial direction or slightly shivers.

In any event, if the screw is slightly inclined from the axis of the drive shaft, the screw will vibrate in the horizontal direction (in which case the screw will vibrate more up horizontally than down), and it is therefore important that the screw and drive shaft remain coaxial. In addition, it is also important to keep the screw rod from moving in the up-and-down direction in a state where the screw rod is fitted over the transmission shaft.

Disclosure of Invention

Technical problem

The present invention is directed to a juice extracting tub having a link gear for transferring a rotational force of a driving shaft to a brush, the link gear being detachably mounted to the juice extracting tub, thereby facilitating cleaning.

In addition, the present invention is directed to provide a juice extracting tub, in which a bushing is installed at an outer side of a driving shaft, thereby being driven more stably.

Technical scheme

In order to achieve the above object, a juice extracting bucket according to an embodiment of the present invention includes: a screw rod which receives a driving force from a transmission shaft to rotate; a mesh drum disposed outside the radius of the screw to discharge the extracted juice or pulverized material; a juicing housing, the inner side of which is provided with the screw and the mesh barrel and is formed into a column shape with an open upper surface; a protrusion protruding upward from a bottom surface of the juicing housing and formed in a shape surrounding the transmission shaft inserted inside thereof; and a bush having an inner side surface surrounding an outer circumferential surface of the transmission shaft to support the transmission shaft, and an outer side surface formed in a shape corresponding to an inner side surface of the protrusion.

A sealing groove recessed inward of the radius is formed on the outer circumferential surface of the transmission shaft, a sealing member for sealing between the transmission shaft and the protruding portion is provided in the sealing groove, an inner end of the sealing member is mounted on the sealing groove, and an outer end of the sealing member extends obliquely toward an upper side surface of the protruding portion.

The upper edge of the projection is formed by bending, and the outer peripheral surface extends obliquely downward.

A juice extracting tub according to another embodiment of the present invention includes a juice extracting housing, a screw rod built in the juice extracting housing to be rotated by receiving a driving force from a driving shaft, a mesh tub provided at a radially outer side of the screw rod to discharge extracted juice or pulverized materials, a brush provided between the mesh tub and the juice extracting housing and connected to the driving shaft to scrape an outer circumferential surface of the mesh tub and/or an inner circumferential surface of the juice extracting housing by rotation, and a driving module to transmit a rotating force from the driving shaft to the brush, the driving module including: a driving gear installed at a side end or a lower end of the driving shaft to rotate together with the driving shaft; and an intermediate gear which receives the rotational force from the driving gear and then transmits the rotational force to the brush, and is detachably assembled to the juicing housing to selectively gear-couple the driving gear and the brush.

The juicing barrel further comprises: at least one interlocking gear provided between the driving gear and the intermediate gear, transmitting a rotational force of the driving gear to the intermediate gear.

When the intermediate gear is inserted into the inside of the interlocking gear, the lower end of the intermediate gear protrudes downward from the lower surface of the interlocking gear, so that the intermediate gear can be easily separated.

The intermediate gear includes: a gear upper part formed at an upper end of the intermediate gear and disposed above the juicing housing, for transmitting a rotational force to the brush; a gear middle part extending from the gear upper part toward an axial lower end and penetrating the juicing housing; and a gear lower portion extending obliquely from the gear middle portion to a lower side, and having a polygonal cross-section to be selectively connected to the link gear.

The juicing barrel further comprises: and the inner side surface of the gasket is abutted against the outer peripheral surface of the middle part of the gear, and the outer side surface of the gasket is abutted against the juicing outer cover so as to prevent juice or crushed materials from entering the inner side of the intermediate gear.

And a gasket groove which is concave towards the inner side of the radius is formed on the peripheral surface of the middle part of the gear, and the gasket is inserted into the gasket groove.

The intermediate gear includes: a gear upper part formed at an upper end of the intermediate gear and disposed above the juicing housing, for transmitting a rotational force to the brush; a gear middle part extending from the gear upper part toward an axial lower end and penetrating the juicing housing; and a gear lower portion extending from the gear middle portion toward a lower side and selectively connected to the link gear, the gear lower portion including: a pair of assembly legs extending toward an axially lower side to face each other in a spaced-apart manner, the intermediate gear being detached from or mounted to the interlocking gear by the pair of assembly legs being pressed in a direction facing each other.

The intermediate gear further includes: and a pressing protrusion formed to protrude outward from a lower end of the pair of assembly legs, the pressing protrusion being supported by a lower end of the interlocking gear to restrict an axial movement of the intermediate gear in a state where the intermediate gear is inserted into an interlocking hole formed inside the interlocking gear.

The juicing barrel further comprises: and a packing having an inner side surface fitted in a packing groove formed in a central portion of the gear and an outer side surface abutting against a bottom surface of the juice extracting housing to prevent juice or crushed materials from entering the coupling gear side, the packing being formed to be inclined toward a radially outer side and an axially lower side of the central portion of the gear.

Effects of the invention

According to the embodiment of the present invention, the intermediate gear can be detached from the juice extracting bucket as required, so that the intermediate gear can be easily cleaned, and the sanitary management of the juice extracting bucket can be realized. In addition, juice or residue adhered to the intermediate gear can be completely removed, so that malfunction of the intermediate gear can be prevented during transmission, and the rotational force transmitted to the intermediate gear can be completely transmitted to the brush.

In addition, the bush is installed to support the propeller shaft at the outer side of the propeller shaft so that the propeller shaft can be always aligned in the axial direction, whereby vibration or slight chattering generated from the propeller shaft can be significantly prevented. In addition, by reinforcing the bottom end of the propeller shaft, which generates a strong load, it is possible to improve durability thereof. Further, since the drive shaft is stably rotated, the screw and the brush receiving the driving force from the drive shaft can also satisfy the expected performance.

Drawings

FIG. 1 is a top perspective view of a juice extraction bucket according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a juice extraction bucket according to an embodiment of the present invention.

Fig. 3 is an exploded perspective view of a juice extracting bucket according to an embodiment of the present invention.

Fig. 4 and 5 are top and bottom perspective views, respectively, of a bottom surface of a juice extracting bucket according to an embodiment of the present invention.

FIG. 6 is a perspective view of a gear cover of a juice extracting bucket according to an embodiment of the present invention.

FIG. 7 is a perspective view of a drive shaft of a juice extracting bucket according to an embodiment of the present invention.

FIG. 8 is a perspective view of a bushing of a juice extraction bucket according to an embodiment of the present invention.

Fig. 9 is a perspective view illustrating a state in which a bushing of a juice extracting bucket according to an embodiment of the present invention is mounted to a driving shaft.

FIG. 10 is a perspective view of a juicing bucket according to an embodiment of the invention with a drive module mounted below the juicing bucket.

FIG. 11 is a perspective view of a drive module of a juice extraction bucket according to an embodiment of the present invention.

Fig. 12 is a top perspective view illustrating a state in which a gear assembly is mounted on a juice extracting tub according to an embodiment of the present invention.

FIG. 13 is an exploded perspective view of a gear assembly of the juice extraction bucket according to an embodiment of the present invention.

Fig. 14 is a sectional view illustrating a state in which a gear assembly of a juice extracting bucket according to an embodiment of the present invention is mounted to a juice extracting housing.

FIG. 15 is a cross-sectional view illustrating a gear assembly of the juice extraction bucket according to an embodiment of the present invention.

FIG. 16 is a perspective view illustrating the juice extracting bucket with the idler gear removed, according to an embodiment of the present invention.

FIG. 17 is a disassembled perspective view of a gear assembly of a juice extraction bucket according to another embodiment of the present invention.

Fig. 18 is a sectional view illustrating a state in which a gear assembly is mounted on a juice extracting tub according to another embodiment of the present invention.

Detailed Description

The preferred embodiments of the present invention are described below in detail based on the drawings.

Throughout the specification, when a portion is described as "comprising" a component, unless specifically stated to the contrary, it is meant that other components may also be included, and not excluded.

For convenience of description, the left side in the drawings is denoted by "one side", "one end portion", and the like, and the right side in the drawings is denoted by "the other side", "the other end portion", and the like. Further, the direction close to the ground (lower side in the drawing) is denoted by "lower side", "lower end" and the like, and the direction away from the ground (upper side in the drawing) is denoted by "upper side", "upper end" and the like.

Throughout the specification, parts denoted by the same reference numerals refer to the same or similar components.

The juice extracting bucket shown in fig. 1 to 3 is one of various juice extracting buckets exemplified for convenience of description, and the technical idea of the present invention is not limited to the juice extracting bucket exemplified in this specification, and can be applied to various juice extracting buckets.

Referring to fig. 1 to 3, a juice extracting tub 1 according to an embodiment of the present invention includes a juice extracting housing 10, a hopper 20, a gear cover 30, a driving shaft 40, a screw 50, a mesh tub 60, a brush 70, and a driving module 200.

The juicing housing 10 is formed in a cylindrical shape with its upper face opened, and includes a side wall 10a and a bottom face 10b constituting outer and lower walls.

A juice discharge port 11 and a residue discharge port 13 may be formed on a lower end portion of the sidewall 10a of the juice extracting housing 10, the juice discharge port 11 and the residue discharge port 13 being spaced apart from each other in a circumferential direction. The passage moving toward the juice discharge port 11 and the passage moving toward the residue discharge port 13 are provided in a structure separated from each other with respect to the mesh tub 60.

The juice discharge port 11 is for discharging juice flowing out of the meshes (not shown in the drawing) of the net bucket 60. In this case, the lower surface of the juice discharge port 11 is formed to be inclined toward the outer side of the radius of the juice extracting housing 10 and the ground surface, so that juice is easily discharged. Further, the juice outlet 11 may have an opening/closing mechanism 12 at its tip, and the amount of juice to be discharged may be adjusted by the opening/closing mechanism 12.

The slag discharge port 13 may be formed in a substantially rectangular or cylindrical shape with an open front, and the residue transferred below the mesh tub 60 is pushed to the slag discharge port 13. On the other hand, the residue is transferred to the residue discharge port 13 through a residue discharge hole 13a (see fig. 12) formed in the bottom surface 10b of the juice extracting cover 10, and an adjustment lever 14 for adjusting the area of the residue discharge hole 13a to adjust the amount of the residue discharged may be provided.

According to an embodiment of the present invention, the slag discharge opening 13 is formed on the sidewall 10a of the juice extracting housing 10, but is not limited thereto. The residue discharge port 13 may be formed at the bottom surface 10b of the juice extracting housing 10 to smoothly discharge the residue.

In addition, although not shown in the drawings, the lower sides of the juice discharge port 11 and the residue discharge port 13 may be provided with a collecting cup for collecting juice or residue, respectively.

A hopper 20 is detachably mounted to an upper portion of the sidewall 10a of the juicing housing 10. The hopper 20 is provided to cover the open upper portion of the juice extracting housing 10, and for this reason, the lower portion of the hopper 20 is formed in a shape corresponding to the upper surface of the juice extracting housing 10. The hopper 20 is preferably integrated by a first disc 21 having lateral portions, a neck 23 for guiding the material to be fed to the juicing housing 10, and a second disc 25 covering the upper portion of the juicing housing 10.

The first disc 21 is formed in a disc shape, and a feeding port 22 is formed on an upper side thereof so as to be able to feed material to an inner side thereof. The dispensing opening 22 is formed at a distance offset from the centre of the first disc 21, i.e. at a position eccentric from the drive shaft 40 of the juice extractor bucket 1. Therefore, even if the screw 50 rotates, the material can be smoothly fed. The side surface portion formed on the edge of the first disk 21 extends upward in the height direction, thereby preventing the material from coming off.

The neck 23 is formed to be long in the up-down direction and substantially perpendicular to the ground to guide the material entering the dispensing opening 22. However, the present invention is not limited thereto, and the neck portion 23 may be formed to be inclined so that the material naturally slides into the inside of the juice extracting housing 10. Further, the neck portion 23 is formed to be narrow and long inside, so that a hand (hand) cannot be deeply inserted.

In addition, the lower face of the second disk 25 is formed in a shape corresponding to the opened upper portion of the juice extracting housing 10 to cover the upper portion of the juice extracting housing 10. The second disc 25 guides the material entering from the neck 23 towards the inside of the extractor hood 10.

The bottom surface 10b of the juice extracting cover 10 will be described with reference to fig. 4 and 5.

Referring to fig. 4, a protrusion 15 is formed on a central portion of the bottom surface 10b of the juice extracting housing 10 to be integrated with the juice extracting housing 10. The protruding portion 15 may be formed in a columnar shape and protrude upward in the axial direction from the bottom surface 10 b. The protrusion 15 may be formed in a substantially cylindrical shape with a curved upper edge, and an outer peripheral surface thereof extends obliquely downward from the upper edge. Further, the lower portion of the screw 50 has the same or similar inner surface corresponding to the outer surface of the projection 15 so as to be able to receive the projection 15, and the inner surface of the screw 50 is formed to be concavely curved toward the upper side. At least the lower end edge of the projection 15 is formed in a shape almost corresponding to the lower end of the screw 50 so that the inner side of the screw 50 can be supported. The protrusion 15 is provided to be received in a space formed by the curved inner side surface of the screw 50. However, the projection 15 is not limited to the above shape, and may be formed in a hemispherical (half sphere) shape bulging upward.

In addition, an insertion hole 17 is formed on the inner side of the radius of the protrusion 15. The transmission shaft 40 transmits a driving force to the screw 50 through the insertion hole 17.

The protrusion 15 is formed to protrude upward, and its outer side surface is formed to be similar to the inner side surface of the screw 50, thereby preventing juice or residue, etc. from entering between the protrusion 15 and the transmission shaft 40. Further, since the projection 15 is formed in a shape in which the upper edge thereof is curved, even if juice, residue, or the like enters the projection 15 side, it slides again into the bottom surface 10b and is discharged to the residue discharge port 13.

A gear insertion hole 209 into which a gear assembly 210 described below is inserted is formed on an edge of the bottom surface 10b of the juicing housing 10. A pad supporter 250 is installed inside the radius of the gear insertion hole 209. A pad 260 may be installed at an upper side of the pad supporter 250.

Referring to fig. 5, a plurality of assembly protrusions 16 protruding radially inward are formed on the lower surface of the protrusion 15 in the circumferential direction. The assembly projection 16 is inserted into and fixed to an assembly groove 125 (see fig. 8) of the bush 100 attached to the inside of the projection 15, and can prevent the circumferential rotation of the bush 100. In addition, the assembling protrusion 16 and the bushing 100 may be firmly fixed to each other by a bolt 111 or a screw.

Fixing protrusions 12a protruding downward may be formed at intervals in a circumferential direction at a lower portion of the bottom surface 10b of the juicing cover 10, and the fixing protrusions 12a may be fixedly installed in the fixing holes 32a of the gear cover 30.

Further, a gear fixing portion 202a for rotatably fixing a first interlocking gear 202 described later is formed to protrude downward from a position radially outward of the center of the bottom surface 10b of the juicing cover 10 at a predetermined distance. The gear fixing portion 202a is formed in a column shape having an uneven outer peripheral surface, and the interlocking gear 202 is inserted into the gear fixing portion 202 a. For example, a plurality of convex portions 202b may be formed on the outer peripheral surface of the gear fixing portion 202 a.

The gear insertion hole 209 (see fig. 14) is located outside the radius of the gear fixing portion 202a, and a portion of the pad support 250 attached inside the radius of the gear insertion hole 209 protrudes downward.

Referring to fig. 6, the gear cover 30 is formed in a shape corresponding to a lower surface of the juicing housing 10, and is coupled to a lower portion of the juicing housing 10. The gear cover 30 is formed with a gear seating portion 31, a gear guide portion 33, and a driving gear support portion 35.

The gear seating part 31 supports the axial lower end of the gear assembly 210, and allows the gear assembly 210 to stably rotate. In particular, the link gear 230, which is disposed between the juice extracting housing 10 and the gear cover 30 and transmits a rotational force to the gear assembly 210, may be fixed.

The gear guide 33 protrudes upward on the gear cover 30 to extend in a radial direction along both sides of the transmission module 200, and prevents external foreign objects from entering the transmission module 200 while minimizing power loss due to external aerodynamic force.

The driving gear support part 35 is a circular ring-shaped protruding upward and is inserted into a groove formed under the driving gear 41 rotating together with the transmission shaft 40. Therefore, the transmission shaft 40 can be prevented from moving in the radial direction, while the drive gear 41 can be stably rotated in the circumferential direction.

Referring to fig. 7, the transmission shaft 40 is an assembly that receives a rotational force from a driving shaft (not shown in the drawings) that provides the rotational force. A driving hole 43 having a polygonal shape is formed at the lower surface of the driving shaft 40, and the driving shaft is inserted into the driving hole 43 to rotate the driving shaft 40. In order to transmit the rotational force, the driving shaft should also be formed in the same polygonal shape as that of the driving hole 43.

The drive shaft 40 extends in the axial direction, and the upper end thereof is formed in a polygonal column shape. The upper end of the transmission shaft 40 is connected to the screw shaft 53 through the insertion hole 17 of the protrusion 15 so that the screw 50 is rotated. In order to receive the rotational force, the inner surface of the screw shaft 53 should be formed in the same polygonal shape as the upper portion of the transmission shaft 40.

A cylindrical body portion 45 is formed at an axially intermediate portion of the transmission shaft 40, and a bush 100 described later is coupled to an outer peripheral surface of the body portion 45.

A driving gear 41 is formed at the lower end of the transmission shaft 40. The driving gear 41 is formed in a disk (disk) shape and is mounted on an outer circumferential surface of the transmission shaft 40 to rotate together with the transmission shaft 40. Gear teeth (teeth) and tooth grooves are alternately provided on the outer circumferential surface or the lower end of the drive gear 41. Therefore, the driving gear 41 can transmit the rotational force of the transmission shaft 40 to the brush 70 when rotated.

A seal groove 46 (see fig. 2) recessed radially inward is formed in the circumferential direction on the upper side of the body 45 of the propeller shaft 40. A seal member 49 is fitted in the seal groove 46, and is stably fixed by the seal groove 46.

The sealing member 49 may be formed of a material such as rubber or silicone. The inner end of the seal member 49 is attached to the seal groove 46 of the body portion 45, and the outer end thereof is in contact with the outer surface of the protrusion 15. According to fig. 2, the outer end of the seal member 49 is inclined downward outward in the radial direction, and juice, moisture, or the like is more effectively prevented from entering between the body portion 45 of the transmission shaft 40 and the protruding portion 15.

That is, the seal member 49 may be formed in a ring shape and extend so as to be inclined outward in a radius from the upper side toward the lower side. Therefore, the juice or the residue naturally slides down along the outer peripheral surface of the sealing member 49 along the outer side surface of the protrusion 15 to the bottom surface 10 b.

According to an embodiment of the present invention, it is preferable that the juice extracting tub 1 further has a bushing 100 therein to support the trunk portion 45 and the lower end of the driving shaft 40. The above-described bushing 100 is described in further detail with reference to fig. 8 to 9.

As shown in fig. 8 to 9, the bushing 100 includes a bushing flange 110 and a bushing reinforcing portion 120. A mounting hole 103 is formed in the center portion of the bushing flange 110 and the bushing reinforcing portion 120, and the propeller shaft 40 is inserted through the mounting hole 103. The bushing flange 110 and the bushing reinforcing part 120 may be formed in one body.

The lower surface of the bushing flange 110 is formed in a shape corresponding to the upper surface of the drive gear 41, and a plurality of screw holes 115 are formed in the circumferential direction.

The bushing reinforcing part 120 extends from the upper surface of the bushing flange 110 to the upper side, and is formed in a shape in which the upper end thereof is angularly bent to correspond to the inner side surface of the protrusion 15. Therefore, the bushing reinforcing part 120 may be inserted into a space formed inside the protruding part 15.

The bushing reinforcing part 120 is formed with a plurality of assembling grooves 125 in a circumferential direction, and the assembling grooves 125 are preferably formed at positions corresponding to the screw holes 115. The assembly groove 125 is provided to receive the assembly protrusion 16 formed inside the protrusion 15 as described above. When the bolt 111 is fastened to the screw hole 115 in an upward direction in a state where the assembly protrusion 16 is coupled to the assembly groove 125, the bush 100 may be attached and fixed to the protruding portion 15 of the juicing cover 10.

In this way, the bushing 100 is arranged around the outside of the drive shaft 40, and the drive shaft 40 and the juicer housing 10 are firmly fixed in the axial direction. Therefore, it is possible to significantly prevent vibration or slight chattering generated on the drive shaft 40 and keep the drive shaft 40 aligned in the axial direction at all times. Further, by reinforcing the lower end portion of the transmission shaft 40, which receives a strong load, with the bushing 100 as described above, the structural rigidity of the juice extracting tub 1 itself can be enhanced.

Referring again to fig. 1 to 3, the screw 50 receives a rotational force from the driving shaft 40 to perform a rotational motion, and performs a function of squeezing or crushing a juicing object. For this purpose, the screw 50 has a screw shaft 53, and the screw shaft 53 is connected to the drive shaft 40.

A plurality of spiral parts 51 are formed on a portion of the screw 50 contacting the net barrel 60. The object to be juiced is squeezed at a narrow gap between the screw 50 and the mesh drum 60 by the spiral part 51 and is conveyed to the lower side.

The tub 60 may be formed with a plurality of meshes on a side thereof such that the juice generated by the screw 50 can be discharged to the outside of the tub 60. The mesh basket 60 is fixed to the juice extracting basket 1 and does not rotate. The residue pushed to the lower portion inside the tub 60 is discharged through the residue discharge port 13, and the juice passing through the mesh holes is discharged through the juice discharge port 11.

For use in the pulverization, the mesh basket 60 may be formed in a form having no mesh on the side. In this case, the juice to be extracted is squeezed or pulverized by the mesh basket 60 and the screw 50, but the juice and the residue are not separated, and the pulverized material is discharged through the residue discharge port 13. When frozen fruit, chocolate, ice cream, ice cubes, dairy products, beverages, etc. are put in to make ice cream or ice slush, sherbet, etc. food, a mesh barrel for pulverization may be used.

The brush 70 is disposed between the juicing housing 10 and the mesh tub 60, and is connected to the driving shaft 40 to rotate. The brush 70 includes a brush holder 71 and a brush blade 73.

The brush holder 71 includes an upper ring 71a, a lower ring 71b, and a connection post 72. The upper ring 71a and the lower ring 71b are formed in a circular ring shape and formed such that the radius of the upper ring 71a is larger than that of the lower ring 71 b. A brush gear 75 may be formed on a side or a lower end of the lower ring 71b, and the brush gear 75 performs a function of transmitting a rotational force from the driving shaft 40 to the brush 70.

The connection posts 72 are integrally connected to the upper ring 71a and the lower ring 71b, and a plurality of connection posts 72 are formed in a circumferential direction. Since a certain space S is formed between each of the connection posts 72, the brush holder 71 can be light-weighted.

The connecting column 72 is provided with brush blades 73 so as to protrude radially inward or outward. When the brush 70 is rotated, the brush blades 73 installed at the inner or outer radius of the connection post 72 scrape the outer radius side of the mesh tub 60 or the inner radius side of the juicing cover 10, so that the juice adhered to the mesh tub 60 and/or the juicing cover 10 is smoothly brushed down to the bottom surface 10 b.

The brush blades 73 are made of a soft silicone material so as to softly scrape the mesh tub 60 or the juicing housing 10.

Further, when the user is ready to wash the inside of the tub 1, the brush 70 may be activated after washing liquid or water is put into the tub 1. At this time, the brush 70 can completely remove juice or residue adhered to the net bucket 60 or the juicing housing 10.

According to an embodiment of the present invention, a transmission module 200 is provided in order to provide a rotational force from the transmission shaft 40 to the brush 70. The transmission module 200 is described in further detail with reference to fig. 10 to 12.

As shown in fig. 10 to 11, the transmission module 200 of the juice extracting tub 1 according to the embodiment of the present invention includes a driving gear 41 and a gear assembly 210 receiving a rotational force from the driving gear 41. Further, there may be multiple gears between drive gear 41 and gear assembly 210. For example, a first linkage gear 202, a second linkage gear 230 may be disposed between the drive gear 41 and the gear assembly 210.

As previously described, the driving gear 41 is mounted at the lower end of the transmission shaft 40 and is provided to rotate together with the transmission shaft 40. The driving gear 41 is engaged with the first linkage gear 202 to transmit the rotational force to the second linkage gear 230.

The first interlocking gear 202 is attached to the bottom surface of the juicing housing 10 and rotates in mesh with the drive gear 41.

A gear bearing 204 is inserted inside the radius of the first interlocking gear 202. The gear bearing 204 has a radially inner surface formed in a shape corresponding to the outer peripheral surface of the gear fixing portion 202a, and a radially outer surface formed in a smooth cylindrical shape. The gear bearing 204 is fixed by a bolt or a screw in a state of being inserted into the gear fixing portion 202 a.

Therefore, the gear bearing 204 is fixed by the gear fixing portion 202a in the circumferential direction or the axial direction, and the first interlocking gear 202 mounted on the outer side of the radius thereof can stably rotate along the outer peripheral surface of the gear bearing 204.

The second coupling gear 230 is provided to be rotatable on an upper side of the seating portion 31 of the gear cover 30 and a lower side of the bottom surface of the juicing housing 10. The second linkage gear 230 is disposed more radially outward than the first linkage gear 202, receives the rotational force from the first linkage gear 202 and transmits it to the gear assembly 210.

In this manner, the first and second linkage gears 202 and 230 are disposed between the driving gear 41 and the gear assembly 210 in a radial direction, so that the middle gear 220 of the gear assembly 210 may be located at the outer edge of the radius in the bottom surface 10b of the juice extracting housing 10 as shown in fig. 12. Therefore, a space can be secured below the screw 50, and the degree of freedom in designing the space can be improved.

In the above embodiment, the transmission module 200 of the juice extracting tub 1 is provided in the form of a combination of a plurality of spur gears, but is not limited thereto. The gears of the transmission module 200 may be provided in various forms, for example, bevel gears, helical gears, worm gears, and the like may be used.

The gear assembly 210 receives a rotational force from the first interlocking gear 202 through the second interlocking gear 230 and transmits the rotational force to the brush 70. To this end, the upper end of the gear assembly 210 is disposed to be circumscribed or inscribed with the brush gear 75 formed on the brush 70. In such a gear combination, the number of rotations of the gear can be adjusted by adjusting the gear ratio, of course. That is, the brush 70 may be provided with a rotation speed suitable for a juicing object, different from the rotation speed of the drive shaft 40.

The structure of the gear assembly 210 is described in further detail with reference to fig. 13-14.

The gear assembly 210 includes an intermediate gear 220, a liner support 250, and a liner 260.

As for the intermediate gear 220, the upper end thereof is directly engaged with the brush gear 75, and performs a function of receiving a rotational force from the second coupling gear 230 provided at the lower end and transmitting it to the brush gear 75.

According to an embodiment of the present invention, the intermediate gear 220 can be selectively gear-coupled with the second coupling gear 230 fixed to the juicing housing 10. That is, the user inserts the intermediate gear 220 into the gear insertion hole 209 formed on the edge of the bottom surface 10b of the juicing housing 10 such that the intermediate gear 220 is gear-coupled with the second coupling gear 230. In addition, the user can detach the intermediate gear 220 gear-coupled with the second linkage gear 230 from the juice extractor housing 10.

The intermediate gear 220 includes: a gear upper part 225 on which gear teeth are formed to be engaged with the brush gear 75 at an upper end of the intermediate gear 220; a gear middle portion 240 extending from the center of the gear upper portion 225 toward the axially lower side; and a gear lower portion 247 further extended from the gear central portion 240 toward an axial lower side and inserted into the inside of the second linkage gear 230.

The gear upper part 225 is provided on the upper side of the bottom surface 10b of the juice extracting housing 10, and directly engages with the brush gear 75, thereby transmitting the rotational force to the brush gear 75.

The gear middle portion 240 extends from the gear upper portion 225 toward the axially lower side, and is formed in a cylindrical shape. In a state where the intermediate gear 220 is mounted to the juicing housing 10, the gear middle portion 240 is located in the gear insertion hole 209 of the bottom surface 10 b. At this time, the ring-shaped pad supporter 250 is fixedly installed inside the radius of the gear insertion hole 209, so that the outer circumferential surface 245 of the gear center part 240 faces the inner circumferential surface of the pad supporter 250.

As shown in fig. 14, the outer circumferential surface 245 of the gear middle portion 240 is spaced apart from the pad supporter 250 by a minute interval to form an accommodation space O. With this structure, interference caused by the pad supporter 250 is minimized when the intermediate gear 220 rotates.

A gasket 260, described below, may be mounted on the outer peripheral surface 245 of the gear middle portion 240. Since the packing 260 is made of rubber or silicone, etc., the gear middle part 240 may be made of a metal material to improve adhesion with the packing 260 made of the above material.

The gear lower portion 247 has a polygonal shape in cross section and is inserted into the second linkage gear 230 at a radially inner side to be rotatable together with the second linkage gear 230.

The lower end of the gear lower portion 247 is formed in a tapered shape that becomes narrower inward in the radius as it goes down. Due to this shape, when the intermediate gear 220 is inserted inside the second linkage gear 230, the gear lower portion 247 can naturally engage with the second linkage gear 230. The thickness (t) (see fig. 14) of the gear lower portion 247 is set to be the same as or slightly smaller than the outer circumferential surface of the accommodation space O formed inside the radius of the pad supporter 250. Therefore, the intermediate gear 220 can be engaged with the second coupling gear 230 after being inserted into the receiving space O.

The pad supporter 250 is formed in a substantially cylindrical shape and fixedly installed on the juicing housing 10. The pad supporter 250 is formed with a radial extension 251 and an axial extension 253.

The radial extension 251 is formed to protrude further radially outward from the side surface of the pad supporter 250, and may be inserted and fixed in a groove formed in the side wall 10a or the bottom surface 10b of the juice extracting housing 10.

The axial extension 253 protrudes upward from the upper end of the pad supporter 250 and extends in the circumferential direction. The axially extending portion 253 is spaced apart from the juicer housing 10 in a radial direction, and the packing 260 is fitted around the outer circumferential surface of the axially extending portion 253.

The packing 260 is formed substantially in a ring shape, and is made of a material having sealability and elasticity, such as rubber or silicone rubber. The inner peripheral surface of the packing 260 is closely attached to the outer peripheral surface 245 of the gear middle part 240 of the intermediate gear 220, and the outer peripheral surface thereof is closely attached to the juice extracting cover 10. At this time, a portion of the packing 260 is closely attached to the upper portion of the packing supporter 250, thereby preventing juice or crushed materials from entering between the intermediate gear 220, the packing supporter 250, and the gear insertion hole 209.

The gasket 260 includes a first gasket disk 261, a first gasket ring 263, a second gasket disk 265, and a second gasket ring 267.

As for the first spacer disk 261, one end abuts on the outer peripheral surface 245 of the gear middle portion 240, and the other end extends toward the outside of the radius. Further, the first spacer disk 261 is axially spaced from the lower face of the gear upper portion 225.

The first packing ring 263 extends axially upward from the radially outer end of the first packing disk 261, and the upper end thereof abuts against the lower surface of the gear upper 225.

The intermediate gear 220, the first packing disk 261, and the first packing ring 263 form a packing space P (see fig. 14). Due to the pad space P, it is possible to minimize the contact between the pad 260 and the intermediate gear 220 and improve the drag torque (dragtorque).

The second packing disk 265 extends radially outward from the upper end of the first packing ring 263, and at this time, the second packing disk 265 is spaced apart from the lower surface of the gear upper portion 225 by a fine interval so that the intermediate gear 220 smoothly rotates.

The second packing ring 267 extends axially downward from the radial outer end of the first packing plate 265, has an inner circumferential surface in contact with the packing support 250, and has an outer circumferential surface in contact with and fixed to the juicing cover 10.

In this manner, by forming the first and

second packing disks

261 and 265 and the first and second packing rings 263 and 267 in a labyrinth (labyrinth) shape, it is possible to effectively prevent inflow of juice, and on the other hand, to reduce a contact area with other members of the packing 260, thereby improving the resistance torque of the intermediate gear 220.

In addition, since the material of the packing 260 has elasticity, when the packing 260 is inserted into the gear insertion hole 209, it is pressed to some extent toward the outside of the radius to abut. In this case, the inner side surface of the packing 260 presses the packing supporter 250 positioned at the inner side thereof, so that juice or pulverized material inside the juice extracting cover 10 can be completely prevented from flowing in.

A gear assembly according to another embodiment of the present invention is described with reference to fig. 15.

A gear assembly according to another embodiment of the present invention has the same or similar assembly as the pad support 250 and pad 260 of the previous embodiment of the present invention. The intermediate gear 310 is described in detail below.

Referring to fig. 15, the intermediate gear 310 according to another embodiment of the present invention includes: a gear upper part 325 on which gear teeth are formed to be engaged with the brush gear 75 at an upper end of the intermediate gear 310; a gear middle part 340 extending from the center of the gear upper part 325 toward the axial lower side; and a gear lower portion 347 further extending from the gear central portion 340 toward the lower side in the axial direction and inserted into the inside of the second linkage gear 230.

The gear upper part 325 is installed on the upper surface of the juice extracting housing 10 to be engaged with the brush gear 75, thereby transmitting a rotational force.

The gear middle portion 340 extends from the gear upper portion 325 toward the axial lower side, and is formed substantially in a cylindrical shape. As previously described, the gear middle part 340 may be formed of a metal material to improve adhesion with the pad 260 mounted on the outer circumferential surface thereof.

A packing groove 345 having a shape recessed inward in the radius is formed on the outer circumferential surface of the gear middle portion 340 in the circumferential direction. By supporting the upper and lower ends of the pad 360 through the pad groove 345, the mountability between the pad 360 and the gear middle part 340 can be improved.

An upper end 345a of the gasket groove 345 is horizontally formed in a radial direction to form a step, and a lower end of the gasket groove 345 is formed with a slope 345b toward a radial outer side and an axial lower side. Therefore, the packing 360 can be inserted from the gear lower part 347 into the packing groove 345 formed in the gear middle part 340 through the above-mentioned slope 345b without being caught.

As for the gear lower portion 347, its cross section is formed in a polygonal shape and extends from the gear middle portion 340 toward the axially lower side. At this time, the outer circumferential surface of the gear lower portion 347 is formed in a tapered shape inward of the radius, and is inserted into the second linkage gear 230 so as to be engaged with the second linkage gear 230 and rotated.

Fig. 16 is a perspective view showing the juice extracting bucket with the intermediate gear removed. As previously mentioned, the idler gears 220, 310 may be selectively removed from or attached to the juicer housing 10. Therefore, juice, residue, and the like adhered to the intermediate gear 220 can be removed, thereby enabling sanitary management of the tub 1.

In addition, in a state where the intermediate gear 220 is attached to the juicing housing 10, the lower end of the gear assembly 210 protrudes downward from the lower surface of the second coupling gear 230. Therefore, when the lower end of the protruding gear assembly 210 is pushed upward, the gear upper portion 225 of the middle gear 220 is lifted upward from the bottom surface of the juicing housing 10, and the gear

upper portions

225 and 325 protrude upward from the bottom surface of the juicing housing 10. Then, when the user holds the gear

upper parts

225, 325 up, the intermediate gear 220 can be easily detached from the juice extractor housing 10.

On the other hand, as shown in fig. 17 to 18, a gear assembly 410 according to still another embodiment of the present invention includes an intermediate gear 420 and a pad 460.

The intermediate gear 420 includes: a gear upper part 425 formed in a gear shape to be engaged with the brush gear 75 at an upper end of the middle gear 420; a gear middle portion 440 extending axially downward from a central portion of the gear upper portion 425; and a gear lower part 450 further extended downward from the gear middle part 440 and inserted into the inside of the second linkage gear 430.

The upper gear portion 425 is spaced upward from the bottom surface of the juice extracting cover 10, and a partition 411 is formed on the bottom surface of the juice extracting cover 10 to protrude upward in the axial direction so as to prevent juice or crushed material from entering the inside of the upper gear portion 425.

The gear middle portion 440 extends from the gear upper portion 425 toward the axially lower side, and is formed substantially in a cylindrical shape. The upper end of the gear middle portion 440 is formed with a pad groove 445 depressed inward in the radius to mount a pad 460. Further, the gear middle portion 440 may be formed of a metal material to improve adhesion with a pad 460 mounted on an outer circumferential surface thereof.

The gear lower 450 is formed to have a substantially quadrangular prism shape in cross section, and the corners thereof are formed by bending. The gear lower portion 450 is inserted inside the radius of the second linkage gear 430 to be rotatable together with the second linkage gear 430.

The gear lower portion 450 has a pair of assembly legs 453 extending axially downwardly spaced from each other, the pair of assembly legs 453 being disposed to face each other. The pair of assembly legs 453 is inserted into the link hole 435 formed at the inner side of the second link gear 430, thereby connecting the gear lower portion 450 and the second link gear 430. The interlocking hole 435 is formed in a quadrangular shape whose corners are bent to correspond to the outer side surface of the gear lower portion 450. A pressing protrusion 455 protruding in a radial outer direction is formed at a lower end of the pair of assembly legs 453.

The intermediate gear 420 is assembled to the second linkage gear 430 to rotate together with the second linkage gear 430 as follows.

When the intermediate gear 420 is inserted into the coupling hole 435 formed at the inner side of the second coupling gear 430, a pair of assembly legs 453 are pressed in a radial inner direction (i.e., a direction facing each other), and the interval therebetween is decreased. As shown in fig. 18, when the pair of assembly legs 453 is completely inserted into the interlocking hole 435, the pair of assembly legs 453 is restored again in a radially outer direction (i.e., a direction opposite to the direction in which they face each other). That is, a pair of assembly legs 453 of the gear assembly 410 is installed in the link holes 435 by elastic deformation. At this time, the pressing protrusion 455 is provided to support the lower end of the second coupling gear 430 to prevent the axial disengagement of the intermediate gear 420.

On the other hand, when the gear assembly 410 is detached from the second linkage gear 430 and the juice extracting cover 10, the pressing protrusion 455 is pressed in the arrow direction (the direction facing each other, i.e., the radial inner direction) shown in fig. 18 and presses the lower end of the intermediate gear 420 upward. At this time, the pair of assembly legs 453 are deformed in a direction facing each other, and the intermediate gear 420 is lifted upward in the axial direction from the bottom surface of the juice extracting housing 10 with a certain interval, so that the user can easily separate the intermediate gear 420 from the juice extracting tub 1.

The gasket 460 is formed substantially in a ring shape, and is made of a material having sealing property and certain elasticity, such as rubber or silicone rubber. The inner peripheral surface of the packing 460 abuts against the packing groove 445 formed in the gear center portion 440 of the intermediate gear 420, and the outer peripheral surface thereof abuts against the bottom surface of the juice extracting cover 10. The packing 460 may be inclined to extend from the outer circumferential surface of the idler gear 420 toward the radially outer side and the axially lower side. Therefore, juice or crushed materials, etc. can naturally slide into the bottom surface of the juice extracting housing 10 along the outer side surface of the gasket 460.

While the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and embodiments equally modified from the embodiments of the present invention may be easily modified by those skilled in the art to which the present invention pertains, all of which fall within the scope of the present invention.

Claims

1. A juicing barrel, which is characterized in that,

the juicing barrel comprises:

a screw rod which receives a driving force from a transmission shaft to rotate;

a mesh drum disposed outside the radius of the screw to discharge the extracted juice or pulverized material;

a juicing housing, the inner side of which is provided with the screw and the mesh barrel and is formed into a column shape with an open upper surface;

a protrusion protruding upward from a bottom surface of the juicing housing and formed in a shape surrounding the transmission shaft inserted inside thereof; and

a bush having an inner side surface surrounding an outer circumferential surface of the transmission shaft to support the transmission shaft, and an outer side surface formed in a shape corresponding to an inner side surface of the protrusion.

2. The juicing bucket of claim 1,

a sealing groove which is concave towards the inner side of the radius is formed on the outer circumferential surface of the transmission shaft,

a sealing member for sealing between the transmission shaft and the protrusion is provided in the sealing groove,

the inner end of the sealing member is attached to the sealing groove, and the outer end extends obliquely toward the upper surface of the protruding portion.

3. The juicing bucket of claim 2,

4. A juicing barrel, which is characterized in that,

the juicing barrel comprises a juicing outer cover, a screw rod which is arranged in the juicing outer cover and rotates by receiving driving force from a driving shaft, a mesh barrel which is arranged at the outer side of the radius of the screw rod and is used for discharging extracted juice or crushed materials, a brush which is arranged between the mesh barrel and the juicing outer cover and is connected with the driving shaft and brushes the outer peripheral surface of the mesh barrel and/or the inner peripheral surface of the juicing outer cover by rotating and scraping, and a driving module which transmits rotating force to the brush from the driving shaft,

the transmission module includes:

a driving gear installed at a side end or a lower end of the driving shaft to rotate together with the driving shaft; and

an intermediate gear which receives the rotational force from the driving gear and then transmits the rotational force to the brush,

the intermediate gear is detachably assembled to the juicing housing and selectively connects the driving gear and the brush in a gear way.

5. The juicing bucket of claim 4,

6. The juicing bucket of claim 5,

7. The juicing bucket of claim 6,

the intermediate gear includes:

a gear upper part formed at an upper end of the intermediate gear and disposed above the juicing housing, for transmitting a rotational force to the brush;

a gear middle part extending from the gear upper part toward an axial lower end and penetrating the juicing housing; and

and a gear lower portion extending obliquely from the gear middle portion to a lower side and having a polygonal cross-section to be selectively connected to the link gear.

8. The juicing bucket of claim 7,

9. The juicing bucket of claim 8,

10. The juicing bucket of claim 4,

the intermediate gear includes:

a gear lower portion extending from the gear middle portion toward a lower side and selectively connected to the link gear,

the gear lower portion includes:

a pair of assembly legs extending toward the axially lower side so as to face each other in a spaced-apart manner,

the intermediate gear is detached from or attached to the interlocking gear by the pair of assembly legs being pressed in a direction facing each other.

11. The juicing bucket of claim 10,

the intermediate gear further includes:

a pressing protrusion formed to protrude outward from a lower end of the pair of assembly legs,

the pressing protrusion is supported by a lower end of the interlocking gear to restrict axial movement of the intermediate gear in a state where the intermediate gear is inserted into an interlocking hole formed at an inner side of the interlocking gear.

12. The juicing bucket of claim 11,

the juicing barrel further comprises: a packing having an inner side surface mounted in a packing groove formed in a central portion of the gear and an outer side surface abutting against a bottom surface of the juicing housing to prevent juice or pulverized materials from entering the side of the linked gear,

the packing is formed obliquely toward the radially outer side and the axially lower side of the gear central portion.