CN111700476A - Juice mixer - Google Patents

Abstract

The utility model relates to the technical field of fruit juice preparation in fruits, and provides a juice mixer, which comprises a driving component, a switching component and a straw knife component, wherein the driving component is provided with an output shaft; the switching assembly comprises a fixed piece and a movable piece, the fixed piece is fixed on the driving assembly, the movable piece is rotatably arranged in the fixed piece, and the tail end of the movable piece is provided with an accommodating cavity; the suction pipe cutter assembly comprises a pipe shaft, a connecting piece and a cutter, wherein the pipe shaft penetrates through the axial direction, the connecting piece is arranged on an axis body between two end surfaces of the pipe shaft, the pipe shaft section on one side of the connecting piece is a first section, the pipe shaft section on the other side of the connecting piece is a second section, the cutter is fixed at the tail end section of the second section, the suction pipe cutter assembly is detachably arranged on the moving piece through the connecting piece, and an axial limiting structure and a torque transmission structure are arranged between the connecting piece and; the connecting piece is sleeved on the tubular shaft and is provided with an outer peripheral surface, the outer peripheral surface is a prismatic surface or a spline-shaped surface, and the accommodating cavity of the movable piece is provided with an inner peripheral surface matched with the prismatic surface or the spline-shaped surface.

Description

Juice mixer

Technical Field

The utility model relates to a domestic juice extractor technical field, concretely relates to juice agitator.

Background

Fruits such as watermelon and orange are popular because of their palatable taste and nutritional abundance. However, since the fruits have thick peels, the fruits usually need to be cut or peeled when the fruits are eaten or when a juicing operation is desired, and thus there are disadvantages such as loss of juice and complicated cleaning operation.

Research into solutions to this problem has long been available.

Japanese patent laid-open No. Hei 3-55010 describes an apparatus for cutting pulp into fruit, which can eliminate the operation of cutting fruit.

Japanese patent application laid-open No. 9-294672 describes an apparatus for cutting pulp into fruit without cutting the fruit.

Chinese patent CN104411214B proposes a device for processing tough-skinned fruits such as oranges, which only needs to open holes on the tough skin of the fruit and then perform pulp breaking operation in the fruit to directly make the pulp into juice/pulp in the tough skin of the fruit without cutting the fruit. The straw knife assembly of the device is provided with a plurality of knife strips which are arranged on the surface of the rotating shaft along the axial direction of the rotating shaft, the knife strips of the straw knife assembly are in a furling state and a spreading state which is attached to the surface of the main shaft and is bent along the radial direction, and the device is also provided with a power and a transmission mechanism which drive the straw knife assembly to rotate, and a mechanism which drives the straw knife assembly to change between spreading and furling. The straw knife assembly can be inserted into fruits through a hole pre-cut in the fruit peel in a folded state, then rotates and gradually changes into an opening state in the rotation process, and the knife strip gradually acts on the pulp and treats the pulp into a juice state in the process. In order to realize the autorotation of the straw knife assembly and the change between the opening state and the closing state, the device is provided with a complex transmission and manual operation mechanism, a user needs to hold the fruit tightly from the bottom of the fruit with one hand to prevent the fruit from rotating along with the straw knife assembly, needs the strength of the whole arm part to keep lifting the fruit, and simultaneously needs to press the handle with the other hand to change the straw knife assembly from the closing state to the opening state, so the operation is relatively laborious.

According to the technical scheme, after the pulp is smashed, the cutter needs to be pulled out of the fruit, and then the fruit juice is sucked through the suction pipe. When the reusable straw is used, the straw needs to be cleaned besides the cutter; disposable straws are not environmentally friendly.

Chinese patent CN203789662U proposes a concept of expecting to break the pulp inside the oranges by means of an "orange straw" and to suck the juice directly through the "straw". However, in the technical scheme disclosed in the patent publication, the 'tube body 1' is provided with the water outlet hole 2, the sliding groove 3 and the blade hole 10, and the 'tube body 1' cannot form a closed space with fruit juice, so that the function of a 'straw' cannot be realized at all. Moreover, the holes and grooves are the structures necessary for breaking the pulp and cannot be discarded, so that the possibility of improvement does not exist, and the method has no practicability. Even if the technical scheme can reluctantly realize the function of sucking the fruit juice, the sanitary reliability and the cleaning convenience of the fruit juice can not be ensured, for example, the motor is arranged in the tube body 1, and the fruit juice can not be contacted with liquid in the using or cleaning process; the contact and relative movement between the parts also causes the adhesion of abraded material (oil sludge and metal dust, etc. common in machinery) inside and outside the tube body 1.

Further, the following patent documents also describe studies on the above-mentioned problems in order to solve all or part of the above-mentioned problems. CN108720536A, CN108720535A, CN108720534A, CN108685459A, CN108685458A, CN108685457A, CN108685456A, CN209074112U, CN209074113U, CN209074114U, CN203662506U, CN203262999U, CN 203059328U, CN102240153A, CN 202234699U, CN102987897A, CN101530279A, CN2565371Y, CN2765540Y, CN 204764940U, CN 204764938U, CN 204445291U, CN 204105686U, CN 203935015U, CN 203776644U, Zhao 56-35315, Zhao 52-51365, US2015237910A1, US 2166, US 883786, US1747957, GB-350094, US1965910, US1951219, US3381608, DE 7838, US2579032 and US1990949, etc.

The application date of the above-mentioned patent starts at the beginning of the 20 th century, and it is seen that it has long been a technical problem that those skilled in the art would like to solve, with a simpler tool, to ingest juice directly from within the fruit or to obtain juice more conveniently and reduce cleaning work, on the premise of ensuring hygiene and realisation.

Disclosure of Invention

In order to solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a juice whisk.

In a first aspect, a juice mixer is provided, comprising a driving assembly, a switching assembly and a sucker-knife assembly, wherein the driving assembly is provided with an output shaft; the switching assembly comprises a fixed piece and a movable piece, the fixed piece is fixed on the driving assembly, the movable piece is rotatably arranged in the fixed piece, the rotating center of the movable piece is coaxial with the output shaft of the driving assembly, and the tail end of the movable piece is provided with an accommodating cavity; the suction pipe cutter assembly comprises a pipe shaft, a connecting piece and a cutter, the pipe shaft penetrates through the axial direction, the connecting piece is arranged on a shaft body between two end faces of the pipe shaft, the pipe shaft section on one side of the connecting piece is a first section, the pipe shaft section on the other side of the connecting piece is a second section, the cutter is fixed at the tail end section of the second section, the suction pipe cutter assembly is detachably arranged on the moving piece through the connecting piece, the pipe shaft is matched with the moving piece through the connecting piece or a shaft hole between the first section and the moving piece to be coaxial, and the first section; an axial limiting structure and a torque transmission structure are arranged between the connecting piece and the movable piece, the axial limiting structure limits the straw cutter assembly to move relative to the movable piece along the axial direction, and the torque transmission structure is used for transmitting the torque output by the movable piece to the connecting piece; the connecting piece is sleeved on the tubular shaft and is provided with an outer peripheral surface, the outer peripheral surface is a prismatic surface or a spline-shaped surface, and the accommodating cavity of the movable piece is provided with an inner peripheral surface matched with the prismatic surface or the spline-shaped surface.

In a first possible implementation manner, the axial limiting structure is an elastic element, the elastic element is arranged on the movable element and has a part of structure protruding into the accommodating cavity or located in front of the opening of the accommodating cavity, and the connecting element is located when the accommodating cavity: the connecting piece can extrude a part of structure of the elastic piece protruding into the accommodating cavity from the radial direction, and the friction force between the elastic piece and the connecting piece limits the connecting piece to be separated from the accommodating cavity along the axial direction; alternatively, the part of the structure of the elastic element located in front of the opening of the receiving cavity forms an axial limit for the outward end face of the connecting element.

With reference to the foregoing possible implementation manner, in a second possible implementation manner, a mounting structure is disposed on an end surface around an opening of the accommodating cavity of the movable member, and the mounting structure is used for fixing the elastic member.

In combination with the above possible implementation manners, in a third possible implementation manner, the mounting structure is a hole or a groove, and the hole or the groove is communicated with the accommodating cavity.

In combination with the above possible implementation manners, in a fourth possible implementation manner, the elastic member is an elastic column, the elastic member is fixed in the hole or the groove, and an end portion or a side portion of the elastic member protrudes into the accommodating cavity.

In combination with the above possible implementation manners, in a fifth possible implementation manner, the elastic piece is an elastic piece, the elastic piece includes an extrusion section and a fixing section, a predetermined bending angle is provided between the fixing section and the extrusion section, the fixing section is fixed to the mounting structure, and at least a part of the structure of the extrusion section protrudes into the accommodating cavity.

In combination with the above possible implementation manners, in a sixth possible implementation manner, the mounting structure is a hole or a groove, the fixing section is provided with an insertion piece, and the insertion piece is inserted into the hole or the groove.

With reference to the foregoing possible implementation manners, in a seventh possible implementation manner, the axial limiting member is a magnet, the magnet is fixed to the movable member, and the connecting member is made of a ferromagnetic material.

According to the juice stirring device, the suction pipe shaft assembly is connected with the switching assembly through the connecting piece, the structure is simple and reliable, one end, contacted with the mouth and the lip of a user, of the pipe shaft can be prevented from being contacted with the driving assembly, and the juice stirring device is more sanitary.

Drawings

FIG. 1 is a schematic perspective view of a juicer according to some embodiments of the present disclosure;

FIG. 2 is a schematic view of the juicer of FIG. 1 in an exploded condition;

FIG. 3 is a schematic structural view of the outer sleeve of FIG. 2;

FIG. 4 is a schematic structural view of the coupling sleeve and sleeve end cap assembly of FIG. 2;

FIG. 5 is a schematic view of a connecting bushing according to some alternative embodiments of the present disclosure;

FIG. 6 is a cross-sectional view of a second recess of the connecting bushing of FIG. 5;

FIG. 7 is a schematic structural view of the suction knife assembly of FIG. 1;

FIG. 8 is a schematic view of the structure of the connector of FIG. 7;

FIG. 9 is a schematic view of the structure of the knife of FIG. 7;

FIG. 10 is a cross-sectional view of the juicer of FIG. 1;

FIG. 11 is an enlarged partial view I of FIG. 10;

FIG. 12 is a sectional view A-A of FIG. 11;

FIG. 13 is a schematic view of the structure of a slitting knife in some embodiments;

FIG. 14 is a schematic view of an in-fruit juicing device according to another embodiment of the present disclosure;

FIG. 15 is a cross-sectional view of FIG. 14;

FIG. 16 is an enlarged view of a portion of FIG. 15;

FIG. 17 is a schematic view of an axial stop arrangement in some alternative embodiments;

FIG. 18 is a schematic view of an axial stop arrangement in accordance with further alternative embodiments;

FIG. 19 is a schematic view of an axial stop arrangement according to further alternative embodiments;

FIG. 20 is a schematic view of an axial stop arrangement in accordance with further alternative embodiments;

FIG. 21 is a schematic structural view of an axial stop arrangement in yet another alternative embodiment;

fig. 22 is a sectional view taken along line a-a in fig. 21.

Detailed Description

In order that the above objects, features and advantages of the present disclosure can be more clearly understood, the present disclosure will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present disclosure, and not all embodiments. The specific embodiments described herein are merely illustrative of the disclosure and are not intended to be limiting. All other embodiments derived by one of ordinary skill in the art based on the described embodiments of the present disclosure are within the scope of the present disclosure.

Referring to fig. 1, fig. 1 is a schematic perspective view of a juicer according to some embodiments of the present disclosure. The juicer includes a drive assembly 100, an adapter assembly 200, a straw knife assembly 300, and a housing 400. The housing 400 is sleeved outside the driving assembly 100, the adaptor assembly 200 is connected to an output shaft of the driving assembly 100, and the pipette blade assembly 300 is detachably disposed on the adaptor assembly 200.

The juice whisk is further described below in conjunction with fig. 2-13.

As shown, fig. 2 is a schematic exploded view of the juicer shown in fig. 1, and fig. 3 is a schematic structural view of the outer sleeve 210 of fig. 2.

The drive assembly 100 includes a motor 110 and a reducer 120, and an output shaft of the reducer 120 is an output shaft of the drive assembly 100. The reducer 120 includes a reducer housing 121, a gear set 122, and a reducer output shaft 123. The gear set 122 is disposed in the reducer housing 121, and the reducer output shaft 123 is a cylinder with two parallel planes milled on the circumference. One end of the reducer housing 121 is fixed to the motor 110, and the other end is fixed to the outer sleeve 210, and the gear group 122 is enclosed in the reducer housing 121 by the outer sleeve 210 and supports the reducer output shaft 123.

Adapter assembly 200 includes an outer sleeve 210, an end cap 220, a coupling sleeve 230, and a sleeve end cap 240. The outer sleeve 210 is a fixing member in the adaptor assembly 200, and is fixed integrally with the reducer 120. The assembly of the connecting boss 230 and the boss end cap 240 is a movable member in the adaptor assembly 200.

The outer sleeve 210 comprises a sleeve body and an end plate 215 at one end of the sleeve body, wherein a circular hole-shaped inner cavity 211 is arranged in the sleeve body, and a shaft hole 212 is arranged on the end plate 215 and is communicated with the inner cavity 211. The outer circumferential surface of one end of the end plate 215 of the outer sleeve 210 is provided with a stepped structure including a circumferential surface 213, and the circumferential surface 213 is used for connecting the outer housing 400. The outer sleeve 210 is fixed to one end of the reducer housing 121 of the reducer 120 by 215, enclosing the gear set 122 within the reducer housing 121; the reducer output shaft 123 extends into the inner cavity 211 of the outer sleeve 210 from the shaft hole 212, and a shaft hole fit capable of rotating relatively is formed between the reducer output shaft 123 and the shaft hole 212. The mouth of the inner cavity 211 is provided with a slot 214 for mounting an end cap 220. The end cap 220 is a disk with a central hole that fits into the slot 214 for axial retention of parts within the lumen 211.

The assembly of the connecting sleeve 230 and the sleeve cover 240 is rotatably disposed in the inner cavity 211 of the outer sleeve 210, axially restrained by the adapter assembly 200, and capable of being driven to rotate by the reducer output shaft 123.

Referring also to the structure shown in fig. 12, 230 is a cylindrical part. Be provided with on connecting shaft sleeve 230's an terminal surface and hold chamber 232, hold chamber 232 and be the blind hole, and be the shoulder hole, the aperture of accent department is greater than the aperture of bottom. The outer circumferential surfaces at both ends of the coupling sleeve 230 are respectively provided with a first circumferential surface 233 and a second circumferential surface 234 protruded to have a diameter equal to the inner diameter of the inner cavity 211 of the outer sleeve 210 for forming a rotational fit with the inner cavity 211. The center of the other end of the connecting sleeve 230 is provided with a boss 235, and the boss 235 is provided with a waist-shaped hole 231. The boss 235 is adapted to contact the bottom wall of the cavity 211 to reduce the friction area between the end surface of the coupling sleeve 230 and the bottom wall of the cavity 211.

The shaft sleeve end cover 240 is a disk-shaped part, and a through hole with a round-corner square cross section is formed in the center of the shaft sleeve end cover. Four side walls of the through hole are all provided with recessed portions, and the recessed portions are communicated with one end face of the shaft sleeve end cover 240. When the sleeve cover 240 is coaxially fitted to one end surface of the coupling sleeve 230, the through hole having a square cross section with rounded corners and the end surface of the sleeve cover 240 form a first recess 241, and a side wall of the through hole is a side wall of the first recess 241. The recess on the sidewall of the through hole and the end surface of the coupling boss 230 enclose a second recess 243.

In the structure shown in the drawings, the second recess 243 forms an accommodating portion, and the second recess 243 includes two facing sidewalls: the end face of the coupling boss 230 corresponds to a second recess 243, and the side walls (portions corresponding to reference numerals 236 and 244 in fig. 12) of the second recess 243 parallel to the end face of the boss end cap 240. The normal directions of the two side walls are along the axial direction of the connecting sleeve 230, and the two side walls are a first axial limiting end wall and a second axial limiting end wall, which can form an axial limit for the part located in the second recess 243. The first axial limiting end wall is adapted to abut against the element located in the second recess 243 to limit axial movement away from the connecting boss 230, and the second axial limiting end wall is adapted to abut against the element located in the second recess 243 to limit axial movement towards the connecting boss 230.

Referring to fig. 11, a cross-sectional structure at the second recess 243 is shown. The inner surface of the second recess 243 parallel to the axial direction of the coupling sleeve 230 includes two portions, a bottom wall 245 and a side wall 246. The bottom wall 245 is a circumferential band concentric with the receiving cavity 232, the side wall 246 is a planar band, and the side wall 246 and the bottom wall 245 smoothly transition through an arc.

Referring to fig. 5 and 6, fig. 5 is a schematic structural view of a coupling sleeve 230a according to some alternative embodiments of the present disclosure, and fig. 6 is a schematic cross-sectional structural view of a second recess 242a of the coupling sleeve 230a of fig. 5.

The structure of the coupling boss 230a can be roughly seen as the coupling boss 230 and the boss cover 240 which are integrated in the previous embodiment, and the second recess 243a corresponds to the structure when the second recess 243 penetrates the outer circumferential surface of the boss cover 240. The first circumferential surface 233a and the second circumferential surface 234a are distributed at two ends of the connecting shaft sleeve 230a, the first recessed portion 241a is a counter bore with a cross section in a rounded rectangle, and a side wall 242a of the counter bore is provided with a second recessed portion 243a penetrating through the wall body. The second recessed portion 243a has a rectangular cross section, i.e., the inner surface thereof includes four portions, namely, a first side wall 2431, a second side wall 2432, a first end wall 2433 and a second end wall 2434, the first side wall 2431 and the second side wall 2432 face each other, and are parallel to the axis of the connecting boss 230 a; the first end wall 2433 and the second end wall 2434 face each other, and are parallel to the end surface of the coupling boss 230 a.

Referring to fig. 7 to 9, fig. 7 is a schematic structural view of the suction knife assembly 300 of fig. 1, fig. 8 is a schematic structural view of the coupling member 320 of fig. 7, and fig. 9 is a schematic structural view of the knife 330 of fig. 7.

The pipette knife assembly 300 includes a tube shaft 310, a connector 320, and a knife 330. The tubular shaft 310 penetrates in the axial direction. The connecting member 320 is disposed on the shaft body between the two end surfaces of the tube shaft 310, the tube shaft sections on the two sides of the connecting member 320 are a first section 311 and a second section 312, respectively, and the length of the second section 312 is greater than that of the first section 311. The blade 330 is secured to the end section of the second section 312. The pipette blade assembly 300 is secured to an assembly body that is removably attached to the coupling hub 230 and the hub end cap 240 by a coupling member 320.

The connector 320 includes a positioning plate 321, a boss 322, and a central hole 323. The positioning plate 321 is a square plate with a round corner, and the plate body is provided with a through hole. The shaft sleeve 322 is coaxial with the through hole of the positioning plate 321, the inner diameter of the shaft sleeve is equal to the diameter of the through hole, and the central hole 323 penetrates through the positioning plate 321 and the shaft sleeve 322. Four corners of the positioning plate 321 protrude out of the outer surface of the shaft sleeve 322, two plate surfaces of the positioning plate 321 are a first end wall 3213 and a second end wall 3214, the side surfaces include a first side surface 3211 and a second side surface 3212, the first side surface 3211 is a surface of a rounded corner portion, and the second side surface 3212 is a plane between two rounded corners. When the connecting member 320 is mounted on the tube shaft 310, the shaft sleeve 322 is located on the same side as the first section 311 of the tube shaft 310, and the positioning plate 321 is located on the same side as the second section 312 of the tube shaft 310.

The knife 330 comprises a ring body and an upper hole 333 and a lower hole 334 provided on the ring body, both holes being radial and coaxial with respect to the ring body, both holes extending through the outer 331 and inner 332 surfaces of the ring body. The edge of the ring body is provided with a cutting edge 335, and the edge of the cutting edge 335 is located on the side of the inner surface 332, i.e. the intersection of the inner surface 332 and the end face of the ring body. The knife 330 is inserted through the upper and lower bores 333, 334 to the end section of the second section 312 of the tubular shaft 310. The two semi-circular ring bodies of the knife 330 located at both sides of the tubular shaft 310 are arc-shaped blades, and the width of the middle of the semi-circular ring bodies is smaller than the width of the two ends. The structure shown in the figure is only one forming mode of the arc-shaped blade, the processing and the installation are simple, and the appearance has certain aesthetic feeling. In some alternative embodiments, the semi-circular ring may be of a uniform width sheet configuration. In other alternative embodiments, the number of the semi-circular rings may also be 3 or 4, and a plurality of the semi-circular rings are uniformly distributed within 360 degrees around the pipe shaft 310.

The edge of the knife 330 is located at the junction of the inner surface of the ring body and the end surface of the ring body, when in use, the outer surface 331 of the knife 330 is located at the outermost side and is in direct contact with the fruit peel, and the edge is located at one side of the inner surface to avoid directly scraping the inner surface of the fruit peel.

The portion of the knife 330 where the hole is provided has a large width, and when the knife 330 is inserted into a fruit, the portion can poke a large space on the flesh of the fruit, facilitating the rotation of the knife 330. The arc-shaped blade has the advantage that the tail end of the arc-shaped blade is fixed on or close to the surface of the tubular shaft, so that the inner surface of the fruit peel of the fruit cannot be damaged.

Referring to fig. 10 to 12, fig. 10 is a sectional view of the juicer of fig. 1, fig. 11 is a partially enlarged view I of fig. 10, and fig. 12 is a sectional view a-a of fig. 11, and the assembly relationship between the driving assembly 100, the adaptor assembly 200, and the suction knife assembly 300 will be further described in conjunction with the structure shown in the drawings.

The driving assembly 100 is fixed to the adapter assembly 200 through the connection between the reducer 120 and the outer sleeve 210, the part of the reducer output shaft 123 milled with a plane is inserted into the waist-shaped hole 231 of the outer sleeve 210, and torque can be transmitted between the two planes and the two opposite side planes of the waist-shaped hole 231.

One end of the housing 400 is fitted over the circumferential surface 213 of the outer sleeve 210, and the housing 400 encloses the drive assembly 100 therein. The shell 400 can be internally provided with a battery, a switch, a circuit board and other structures, and the surface of the shell 400 can be provided with a switch, a charging interface and other structures. The outer surface of the housing 400 may be gripped by a user.

The first section 311 of the suction knife assembly 300 and the connector 320 may enter the first recess 241 of the sleeve end cap 240 and the receiving cavity 232 of the coupling sleeve 230 through the central hole of the end cap 220. The positioning plate 321 of the connecting member 320 is located in the first recess 241, the shaft sleeve 322 and the first segment 311 are located in the accommodating cavity 232, the shaft sleeve 322 forms a shaft hole fit with the shaft sleeve, the end of the first segment 311 is inserted into the hole at the bottom of the accommodating cavity 232 and forms a shaft hole fit, and the other tube segments of the first segment 311 are not in contact with the accommodating cavity 232.

The outer contour of the positioning plate 321 is the same as the cross-sectional shape of the first recess 241 of the sleeve cover 240, and the connecting element positioning plate 321 can enter the first recess 241 along the axial direction and can rotate to enter the second recess 243. In some alternative embodiments, the positioning plate 321 may not have an outer contour completely matching the first recess 241, and only a portion of the outer contour matches the first recess, so as to achieve the guiding function. In other alternative embodiments, the outer profile of the positioning plate 321 is different from the cross-sectional shape of the first recess 241.

Referring to fig. 11 and 12, when the suction pipe cutter assembly 300 rotates in a clockwise direction, four corners of the positioning plate 321 of the coupling member 320 enter the second recess 243. At this time, the sidewall 246 of the second recess 243 contacts with the second side 3212 of the positioning plate 321 to form a torque transmission structure, the sidewall 246 of the second recess 243 is a force applying portion, and the second side 3212 of the connecting member 320 is a force bearing portion. Force can be generated between the contact surfaces of the side wall 246 and the second side surface 3212, and the normal force along the contact surfaces does not pass through the center of the pipe shaft 310, so that when the connecting shaft sleeve 230 rotates counterclockwise, torque is generated on the pipe shaft 310 to drive the suction pipe cutter assembly 300 to rotate. This partial force may directly produce a torque on the tube shaft 310 rather than producing a frictional force normal to the interface, which in turn produces a torque on the tube shaft 310. The torque transmission structure and the axial limiting structure respectively act on the connecting piece 320 of the suction pipe cutter assembly 300, the connection and the torque transmission are realized without friction force generated by extrusion between the connecting piece 320 and the connecting shaft sleeve 230, the disassembly is more convenient, the material abrasion caused by friction can be reduced, and the pollution to the suction pipe cutter assembly 300 is reduced.

The radius of the first side 3211 of the positioning plate 321 farthest from the center of the tube axis 310 (relative to the center of the tube axis 310) is equal to the radius of the bottom wall 245, and is rotatably engaged with the bottom wall 245. Of course, this is not necessary and no contact between the first side 3211 and the bottom wall 245 is allowed, and the engagement between the boss 322 of the connecting member 320 and the receiving cavity 232 of the connecting boss 230 keeps the tube shaft 310 and the connecting boss 230 coaxial, and the engagement between the first segment 311 and the receiving cavity 232 has the same effect. In some alternative embodiments, there is no axial hole fit between the end of the first segment 311 and the receiving cavity 232, and/or there is no axial hole fit between the sleeve 322 and the receiving cavity 232.

The first and second axial restraint end walls 244, 236 of the second recess 243 retain the positioning plate 321 therebetween, which form axial restraint structures with the first and second end walls 3213, 3214 of the positioning plate 321, respectively, to axially retain the connector 320 in position.

In some alternative embodiments, the distance between the first axial restraint end wall 244 and the second axial restraint end wall 236 is greater than the thickness of the positioning plate 321, and the bottom wall of the receiving cavity 232 is in abutting contact with the end surface of the first section 311 to form an axial restraint for the tube shaft 310.

In some alternative embodiments, the positioning plate 321 of the connecting member 320 may be replaced by other structures protruding from the surface of the tube shaft 310, such as four pins perpendicular to the tube shaft 310, which may form an axial stop structure with the second axial stop end wall 236 and the first axial stop end wall 244 of the second recess 243 and a torque transmission structure with the side wall 246.

In some alternative embodiments, the fixing member is of unitary construction with the housing of the drive assembly. In other alternative embodiments, the sleeve body of outer sleeve 210 is a split structure with end plate 215 therebetween.

In some alternative embodiments, the receiving cavity 232 of the connecting sleeve 230 is a through hole.

In some alternative embodiments, the torque transmission structure between the connecting member 320 and the connecting sleeve 230 and the sleeve end cap 240 may also be a structure that fits in the axial shaft hole. The contacting sidewalls between the shaft bores can transmit torque. If the positioning plate 321 is provided with one or more holes or bosses, the sleeve end cap 240 is correspondingly provided with matching bosses and holes. The connecting member 320 is made of ferromagnetic material or contains ferromagnetic material, and the shaft sleeve end cover 240 is provided with a magnet, so that an axial limiting structure is formed between the shaft sleeve end cover 240 and the shaft sleeve end cover, and the shaft sleeve is easy to mount and dismount. In other alternative embodiments, the second recess may not be provided, and torque may be transmitted only by the shape fit between the side surface of the positioning plate 321 and the side surface of the first recess. Meanwhile, the magnetic attraction structure is used for realizing axial limiting.

Since the spool 310 is driven via the connector 320, the first section of the spool 310 may not contact the drive assembly 100, avoiding oil or dust contamination of the drive assembly. The first section of the tubular shaft 310 is located in the accommodating cavity 232 of the connecting shaft sleeve 230, and the accommodating cavity 232 is closed by the connecting piece 320, so that the first section of the tubular shaft 310 is better prevented from being polluted by the external environment, and the sanitation hazard is less when the lips of a human body contact with the first section 311 of the tubular shaft 310.

In some alternative embodiments, the connecting member 320 is provided with an internal or external thread structure, and the connecting sleeve 230 is provided with a corresponding thread structure, which form a detachable connection and a torque-transmitting connection through a threaded connection.

In some alternative embodiments, a plurality of "L" shaped structures may be further disposed on the end surface of the connecting sleeve 230 to realize a torque transmission structure and an axial limiting structure. The L-shaped structure comprises a vertical rod and a horizontal rod, one end of the vertical rod is fixed on the end face of the connecting shaft sleeve 230, one end of the vertical rod, provided with the horizontal rod, is a free end, and the horizontal rod forms a cantilever beam structure. Referring to fig. 5, the cross bar corresponds to a cantilever beam formed by removing a portion of the cross beam structure between the second recess 243a and the end surface of the coupling sleeve 230a in fig. 5 and disconnecting one end of the cross beam from the body of the coupling sleeve 230 a. The side surface of the vertical rod can transmit torque with the connecting piece, and the transverse rod and the end surface of the connecting shaft sleeve 230 can realize the axial limiting function. In another alternative embodiment, the "L" shaped structure may also be replaced with a "T" shaped structure.

Referring to fig. 13, an opener 50 is shown. The mouth gag 50 is a cylindrical structure that fits over an outer sleeve 210. The free end of the cylindrical structure is a cutter 51, the cutter 51 is formed by a circle of thin-wall structure protruding from the end face of the cylinder, and the cutting edge is positioned at the edge of the thin-wall structure. The thin-walled structure is provided with a notch (not shown). There is a certain distance between the boundary between the thin-walled structure and the end surface of the barrel and the outer surface of the barrel, i.e., the boundary between the end surface and the outer peripheral surface of the barrel forms a step/shoulder structure 52 opposite to the outer side wall of the thin-walled structure. When the fruit peeler is used, one end of the opener 50, which is provided with the opening knife 51, can be inserted into a fruit, and then the step/shaft shoulder 52 is used as a support to pry the fruit peel, so that the part of the fruit peel surrounded by the opening knife 51 protrudes out of the surface of the fruit. The opening knife is provided with a gap, the gap enables the opener 50 to be an unclosed ring for the cutting track of the fruit peel, namely, the fruit peel in the ring is still connected with the fruit peel outside the ring, and the situation that the whole fruit peel in the ring is cut off and then is clamped in the opener 50 can be avoided. The mouth gag 50 could also be provided at other locations on the drive assembly, such as on the side wall or other end; alternatively, the mouth gag 50 may be configured independently of other components and may function independently.

In some alternative embodiments, the positioning plate 321 may also have a triangular, rectangular, oval, polygonal or other non-circular shape.

Referring to fig. 14 to 16, fig. 14 is a schematic structural view of a fruit juice preparing device in another embodiment of the present disclosure, fig. 15 is a sectional view of fig. 14, and fig. 16 is a partially enlarged view I of fig. 15. Wherein, the reference numerals in fig. 14 to 16 are not related to the reference numerals and structures in fig. 1 to 13, and are only used to identify the structures in fig. 14 to 16.

The juicer is mainly composed of a driving motor 400, a switching assembly and a straw knife assembly 200, the switching assembly is used for connecting an output shaft of the driving motor 400 and the straw knife assembly 200, the switching assembly enables the straw knife assembly 200 to rotate stably under the driving of the driving motor 400, and the straw knife assembly 200 is easily separated from the juicer to be used as a straw when the driving motor 400 stops working. The straw knife assembly 200 comprises a straw shaft 210, a cutting ring 220 and a connecting piece 230, wherein the straw shaft 210 is a through straw shaft along the axial direction, the connecting piece 230 is sleeved on the straw shaft and is positioned between two end faces of the straw shaft, the straw shaft section on one side of the connecting piece 230 is a first section, the straw shaft section on the other side of the connecting piece 230 is a second section, and the first section is shorter and is used for sucking; the second end is longer for access to the interior of the fruit and the ring knife 220 is fixed to the end section of the second section. The suction knife assembly 200 may be detachably mounted to the mover 300 by the connection member 230.

As shown, the adapter assembly includes a fixed member 110 and a movable member 300, and the fixed member 110 is fixedly connected to the driving motor 400 and the housing 100. The driving motor is a speed reducing motor and comprises a motor 410, a gear reduction box 420 and an output shaft 421. The fixing member 120 has a pivot hole, and a shaft hole is formed at the bottom of the pivot hole, and the output shaft 421 of the driving motor 400 enters the pivot hole through the shaft hole. The pivot holes are provided with a needle bearing 151, a needle bearing 152 and a spacer therebetween, and the movable member 300 is sleeved in the holes of the two needle bearings so as to be rotatable with respect to the stationary member 110. The movable member 300 is a cylindrical surface, one end surface is used for forming a connection capable of transmitting torque with the output shaft 421, and the other end surface is provided with a containing cavity 310 for forming a detachable connection capable of transmitting torque with the suction pipe cutter assembly 200.

In this embodiment, a waist-shaped hole is formed in one end surface of the movable member 300, the cushion block 430 is embedded in the waist-shaped hole, and the cushion block 430 has a shape identical to that of the waist-shaped hole and a D-shaped inner hole. A plane is milled on the circumferential surface of the output shaft 421 of the driving motor 400, the tremella output shaft 421 has a D-shaped cross section, and a D-shaped inner hole is matched with the D-shaped shaft, so that the rotary motion of the driving motor 400 is transmitted to the movable member 300. When the movable member 300 is made of a relatively soft material such as plastic or aluminum, a cushion block 430 made of a relatively hard material may be provided to prevent the output shaft 421 from damaging the movable member 300; if the movable member 300 has enough hardness, the pad 430 may not be provided, and the movable member 300 may be directly provided with a hole structure matching with the output shaft 421.

The accommodating cavity 310 comprises an inlet section and a bottom section, the inlet section is of an inner hexagonal structure and is used for transmitting torque with the suction pipe knife assembly 200, correspondingly, the connecting piece 230 of the suction pipe knife assembly 200 is of a hexagonal prism structure, the torque transmitting structure is formed by the connecting piece and the hexagonal prism structure, the suction pipe knife assembly 200 can be axially inserted into or pulled out of the accommodating cavity 310, and the assembling and disassembling operation is simple. When in use, the straw knife assembly 200 cannot be separated from the accommodating cavity 310 due to self weight, so an axial limiting structure is arranged between the connecting member 230 and the movable member 300. In this embodiment, the connecting member 230 is made of ferromagnetic material, and the sidewall of the movable member 300 has a hole 330 in which the magnet 600 is embedded, so that the connecting member 230 is closely attached to the surface of the receiving cavity under the attraction of the magnet 600, and the static friction force therebetween can limit the axial movement of the pipette blade assembly 200.

The end face of the fixed member 110 is fixed with an annular end cap 140, forming an axial limit for the movable member 300.

Referring to fig. 17 to 22, there are shown some alternative embodiments of axial stoppers between the connecting member 230 and the movable member for preventing the pipette blade assembly 200 from being removed from the receiving cavity of the movable member due to its own weight. In some embodiments, the axial limiting structure is an elastic element, the elastic element is fixed on the movable element and has a partial structure protruding into the accommodating cavity, when the connecting element is located in the accommodating cavity, the connecting element can radially press the partial structure protruding into the accommodating cavity of the elastic element, and the friction force between the elastic element and the connecting element limits the connecting element to axially escape from the accommodating cavity.

As shown in fig. 17, the inlet section of the accommodating cavity of the movable member 300c has a hexagon socket structure, and the end surface of the movable member is provided with an axial slot, which is a mounting structure for mounting the elastic member 600 c. The elastic member 600c is a spring plate, and includes an extruding section and a fixing section, a predetermined bending angle is formed between the fixing section and the extruding section to make the spring plate form a J-shaped structure, the fixing section is a short insert, and the extruding section is a long section. The fixed section is inserted in the slot, and the extrusion section is for holding the surperficial perk in chamber, and the extrusion section can be pressed down to connecting piece 230 when inserting and holding the chamber, produces extrusion and stiction between extrusion section and the connecting piece 230, forms the axial spacing. The slot for installing the shrapnel is arranged on the end surface of the moving part 300, the shrapnel can be directly inserted into the slot along the axial direction, and the assembly convenience can be greatly improved for small parts; in addition, the opening direction of the slot is consistent with that of the accommodating cavity, and when the movable piece 300c is an injection molding piece, demolding is facilitated. The fixed section is fixed on the mounting structure, and at least part of the structure of the extrusion section protrudes into the accommodating cavity.

Referring to fig. 18, in the present embodiment, the elastic member 600d has substantially the same structure as the elastic member 600c shown in fig. 17, except that the pressing section of the elastic member 600c is a straight piece and the pressing section of the elastic member 600d is an arc piece. In addition to the bending deformation of the pressing section relative to the fixed section, the curved pressing section itself can also deform to provide a spring force when subjected to radial compression, particularly after the distal end contacts the side wall of the receiving chamber of the movable member 300 d.

Referring to fig. 19, in the present embodiment, the elastic member 600d is a spring sheet, and includes a linear fixed section and a pressing section with one end of the fixed section being semicircular. The end face of the moving part 300e is provided with a sunken part, the bottom of the sunken part is provided with a slot along the axial direction of the moving part, and the slot is a mounting structure for mounting the elastic sheet. When the elastic sheet is inserted into the slot, the semicircular extrusion section protrudes into the accommodating cavity along the radial direction, and the extrusion section does not protrude out of the end surface of the movable piece 300e in the axial direction. When the connecting piece 230 enters the accommodating cavity, the extruding section of the elastic sheet is extruded along the radial direction, and the static friction force is generated by the pressure between the two, so that the axial limiting is formed. In some alternative embodiments, the circumferential surface of the connecting member 230 may further be provided with a groove corresponding to the position of the extruding section, and the extruding section may enter the groove to form an axial limit after the connecting member 230 enters the accommodating cavity.

As shown in fig. 20, the elastic member 600f is a spring plate shown in the figure, and includes a linear fixed section and a pressing section with one end of the fixed section being semicircular. The end face of the moving part 300f is provided with a sunken part, the bottom of the sunken part is provided with a slot along the axial direction of the moving part, and the slot is an installation structure for installing the elastic sheet. When the elastic piece is inserted into the slot, the pressing section protrudes from the end surface of the movable member 300e in the axial direction, and protrudes toward the tube axis 210 in the radial direction. When the connecting member 230 is located in the accommodating cavity, the end surface of the connecting member can contact with the extrusion section of the elastic member 600f to form an axial limit, the elastic sheet cannot be pushed away along the radial direction by the self weight of the straw knife assembly, and the straw knife assembly can be pulled out relatively easily when being pulled along the axial direction by a user.

Referring to fig. 21 and 22, the end surface of the mover 300g is provided with a circular hole communicating with the accommodation chamber on the side surface, and a part of the chamber of the circular hole coincides with the accommodation chamber. The elastic member 600g is a rubber rod, and a part of the structure is located in the accommodating cavity when the rubber rod is inserted into the circular hole. When the connecting piece 230 enters the accommodating cavity, the rubber rod is extruded and generates friction force, so that the axial limit is formed.

In the structure, the mounting structure for mounting the elastic element is arranged on the end face of the movable element, so that the elastic element is convenient to mount during processing and assembly.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solutions of the present disclosure, not to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.

Claims (8)

1. A juicer, comprising:

a drive assembly having an output shaft;

the switching assembly comprises a fixed piece and a movable piece, the fixed piece is fixed on the driving assembly, the movable piece is rotatably arranged in the fixed piece, the rotating center of the movable piece is coaxial with the output shaft of the driving assembly, and the tail end of the movable piece is provided with an accommodating cavity; and

the suction pipe cutter assembly comprises a pipe shaft, a connecting piece and a cutter, the pipe shaft penetrates through the suction pipe cutter assembly along the axial direction, the connecting piece is arranged on a shaft body between two end faces of the pipe shaft, a pipe shaft section on one side of the connecting piece is a first section, a pipe shaft section on the other side of the connecting piece is a second section, the cutter is fixed at the tail end section of the second section, the suction pipe cutter assembly is detachably arranged on the moving piece through the connecting piece, the pipe shaft is matched with the moving piece through the connecting piece or a shaft hole between the first section and the moving piece to be coaxial, and the first section of the pipe shaft is positioned in the accommodating cavity;

an axial limiting structure and a torque transmission structure are arranged between the connecting piece and the moving piece, the axial limiting structure limits the movement of the straw cutter assembly relative to the moving piece along the axial direction, and the torque transmission structure is used for transmitting the torque output by the moving piece to the connecting piece; the connecting piece is sleeved on the tubular shaft and provided with an outer peripheral surface, the outer peripheral surface is a prismatic surface or a spline-shaped surface, and the accommodating cavity of the movable piece is provided with an inner peripheral surface matched with the prismatic surface or the spline-shaped surface.

2. The juicer of claim 1 wherein the axial stop structure is a resilient member disposed on the movable member and having a portion protruding into the receiving chamber or located in front of the opening of the receiving chamber, and wherein when the connecting member is located in the receiving chamber:

the connecting piece can radially press a part of structure of the elastic piece protruding into the accommodating cavity, and the friction force between the elastic piece and the connecting piece limits the connecting piece to be axially removed from the accommodating cavity; alternatively, the first and second electrodes may be,

the part of the structure of the elastic piece, which is positioned in front of the opening of the accommodating cavity, axially limits the outward end surface of the connecting piece.

3. The juicer of claim 2 wherein the movable member has a mounting structure on an end surface thereof about the opening of the receiving chamber for securing the resilient member.

4. A juicer according to claim 3 wherein the mounting formation is a hole or slot in communication with the chamber.

5. A juicer according to claim 4 wherein said resilient member is a resilient post secured in said aperture or slot, the end or side of said resilient member projecting into said chamber.

6. The juicer of claim 3 wherein the resilient member is a spring, the spring including a pressing section and a securing section, the securing section and the pressing section having a predetermined bending angle therebetween, the securing section being secured to the mounting structure, the pressing section having at least a portion of its structure protruding into the receiving cavity.

7. The juicer of claim 6 wherein the mounting structure is a hole or slot and the fixed section has a tab that is inserted into the hole or slot.

8. The juicer of claim 1 wherein the axial stop is a magnet secured to the movable member and the connecting member is a ferromagnetic material.

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