CN212815863U

CN212815863U - Pulp knife and pulp knife assembly

Info

Publication number: CN212815863U
Application number: CN202020594586.XU
Authority: CN
Inventors: 刘晓飞
Original assignee: Beijing Gravel Technology Co ltd
Current assignee: Beijing Gravel Technology Co ltd
Priority date: 2019-05-05
Filing date: 2020-04-19
Publication date: 2021-03-30
Anticipated expiration: 2030-04-19
Also published as: CN111887700A; CN212465684U

Abstract

The utility model relates to a system fruit juice technical field in the fruit, a pulp sword and pulp sword subassembly is provided, the pulp sword is used for setting up at the pole end in order to be suitable for the inside pulp of scraping of entering fruit, the pulp sword includes a plurality of arc blades, the arc blade includes the main part and is located the first link and the second link at main part both ends, the first link and/or the second link of arc blade are used for being connected to the pole, and the arc blade bows for the surface of pole, fixed connection between the first link of a plurality of arc blades, and fixed connection between the second link, so that a plurality of arc blades form wholly, between a plurality of first links, and/or, be formed with the mounting hole between a plurality of second links, the mounting hole is used for being connected with the outer peripheral face cooperation of pole.

Description

Pulp knife and pulp knife assembly

Technical Field

The utility model relates to a domestic juice extractor technical field, concretely relates to pulp sword and pulp sword subassembly.

Background

Most of the known juice preparing devices are used for squeezing/crushing whole or divided fruits, which is inconvenient, and the known solution to the problem can be found in chinese patent CN104411214B juicer and body for juicer. The device can be used for processing fruits with bast, such as oranges, without cutting the fruits, only holes are needed to be formed in the bast of the fruits, then pulp crushing operation is carried out in the fruits, and the pulp is directly made into fruit juice/pulp in the bast of the fruits. The device is characterized in that a cutter assembly of the device is provided with a plurality of cutter bars which are axially arranged on the surface of a rotating shaft along the rotating shaft, the cutter bars of the cutter assembly are in a furling state and a spreading state which is attached to the surface of a main shaft and is bent along the radial direction, and the device is also provided with a power driving the cutter assembly to rotate, a transmission mechanism and a mechanism driving the cutter assembly to change between spreading and furling. The knife assembly can be inserted into the fruit through a hole pre-cut in the peel in a furled state, then rotates and gradually becomes a spreading state in the rotation process, and the knife strip gradually acts on the pulp and processes the pulp into a juice state in the process. In order to realize the autorotation of the 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 knife assembly, needs the strength of the whole arm part to keep lifting the fruit, and simultaneously needs the other hand to press the handle to change the knife assembly from the closing state to the opening state, so the operation is relatively laborious.

Chinese patent CN209136143U discloses a fruit juice-making device, wherein the knife strip is an arc-shaped knife strip, and two ends of the knife strip are fixed on the surface of the knife bar. The above-mentioned blade bar is a tiny part, and its processing and operation of fixing to the cutter arbor surface are inconvenient, can influence the efficiency of processing and equipment in process of production.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem or at least partially solve the above technical problem, the present invention provides a flesh knife and a flesh knife assembly.

In a first aspect, a pulp knife is provided, which is arranged at the end of a rod to be suitable for entering the inside of a fruit to scrape pulp, and comprises a plurality of arc-shaped blades, wherein each arc-shaped blade comprises a main body and a first connecting end and a second connecting end which are arranged at two ends of the main body, the first connecting end and/or the second connecting end of each arc-shaped blade are/is used for being connected to the rod, and the arc-shaped blades are arched relative to the surface of the rod, wherein the first connecting ends of the arc-shaped blades are fixedly connected with each other, and the second connecting ends are fixedly connected with each other, so that the arc-shaped blades are integrated, the first connecting ends are arranged between the second connecting ends, and/or a mounting hole is formed between the second connecting ends and is used for being.

In a first possible implementation manner, the flesh knife includes a circular ring body and a radial hole arranged on the circular ring body, the radial hole is a mounting hole, and two semi-ring bodies on two sides of the radial hole are arc-shaped blades.

In a second possible implementation manner, in combination with the above possible implementation manner, the torus is formed by a pipe body cut from a circular pipe.

With reference to the foregoing possible implementation manner, in a third possible implementation manner, the number of the torus is 2, the 2 tori are alternately sleeved together, and the mounting holes of the two torus are coaxial.

In combination with the above possible implementation manners, in a fourth possible implementation manner, the number of the arc-shaped blades is 2 to 4.

In a second aspect, there is provided a flesh knife assembly comprising a knife bar and a flesh knife, wherein the flesh knife is the flesh knife described in any one of the first aspect, the flesh knife is inserted into one end of the knife bar through a mounting hole of the flesh knife, and the other end of the knife bar is used for being fixed to a rotary driving device.

In a first possible implementation, the cutter bar is a hollow bar.

In combination with the above possible implementation manners, in a second possible implementation manner, a connecting piece is disposed on an outer peripheral surface of the other end of the cutter bar, and the connecting piece is used for connecting the pulp cutter assembly to the middle rotation driving device.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: the whole formed by the arc-shaped blades is more conveniently positioned and connected with the cutter bar.

Drawings

FIG. 1 is a schematic cross-sectional view of an in-fruit juicing device according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the in-fruit juicing device shown in FIG. 1;

FIG. 3 is a schematic view of the construction of the output runner of the in-fruit juicer shown in FIG. 1;

FIG. 4 is a schematic view of the knife of the in-fruit juicing device of FIG. 1;

FIG. 5 is a schematic view of a device for producing juice from fruit according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of the in-fruit juicing device of FIG. 5;

FIG. 7 is an exploded view of the in-fruit juicing device of FIG. 5;

FIG. 8 is a schematic view of a device for producing juice from fruit according to an embodiment of the present invention;

FIG. 9 is an exploded view of the in-fruit juicing device of FIG. 8;

FIG. 10 is a cross-sectional view of the in-fruit juicing device of FIG. 8;

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

FIG. 12 is a sectional view A-A of FIG. 10;

FIG. 13 is a cross-sectional view B-B of FIG. 10;

FIG. 14 is a top view of the tube shaft, knife and connecting piece of the in-fruit juicer of FIG. 8;

FIG. 15 is a schematic view of the structure of the connecting member of the in-fruit juicer of FIG. 8;

FIG. 16 is a schematic view of the connector after entering the first recess and before rotating into the second recess.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are some, but not all embodiments of the invention. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

The present disclosure provides a flesh knife, with reference to the embodiment in fig. 4. The pulp knife is a circular knife and comprises a ring body and a mounting hole arranged on the ring body, and the mounting hole penetrates through the ring body along the radial direction. The mounting hole is used as a boundary, the ring body can be regarded as the combination of two semi-ring parts, the two semi-rings are arc-shaped blades, and the edges of the semi-rings are regarded as the cutting edges of the arc-shaped blades. When the arc-shaped blade ring cutter rotates by taking the mounting hole as an axis, the blade part can scrape pulp. The specific structure of the cutting ring is as described in the knife 600 and the corresponding embodiment in fig. 4. The two cutting rings with slightly different diameters can be sleeved together in a crossed mode, the mounting holes of the two cutting rings are coaxial, the two cutting rings can be fixed into a whole, and the two cutting rings can also be assembled on the cutter bar when in use. Compared with the blade in the Chinese patent CN209136143U mentioned in the background art, the two arc-shaped blades in the disclosure are not respectively fixed on the cutter bar, but the two arc-shaped blades are connected together to form a whole, the whole is connected on the cutter bar, and the whole and the cutter bar are positioned and fixed by shaft hole matching, so that the cutter bar is simple and reliable and is convenient to assemble. The ring body of the cutting ring in the embodiment is cut from the circular tube, the processing is easy, and in practice, the shape and the mounting hole can be processed by laser cutting by directly using a tube as a raw material.

The present disclosure also provides a knife assembly, which includes a tube shaft and a flesh knife, the flesh knife is a cutting ring in the above embodiments, the cutting ring includes a ring body and a mounting hole disposed on the ring body, the mounting hole radially penetrates through the ring body, and the cutting ring is mounted at one end of the suction tube through the mounting hole. The knife assembly may also include a connector located near one end of the other (where no cutting ring is provided).

Referring to fig. 1 to 4, the present disclosure will be further explained with reference to the accompanying drawings. Fig. 1 is a schematic sectional view of an in-fruit juice preparing apparatus according to an embodiment of the present disclosure, fig. 2 is an exploded schematic view of the in-fruit juice preparing apparatus shown in fig. 1, fig. 3 is a schematic structural view of an output rotary sleeve of the in-fruit juice preparing apparatus shown in fig. 1, and fig. 4 is a schematic structural view of a knife of the in-fruit juice preparing apparatus shown in fig. 1.

In this embodiment, the juice-extracting device comprises a housing 100, a driving assembly 200, a connecting frame 300, a rotary transmission member 400, a tubular shaft 500 and a knife 600.

The housing 100 is a basic mounting base including a portion for fixing the driving assembly 200 and a coupling frame fixing portion 110 for fixing the coupling frame 300. The connecting frame fixing part 110 is a cylindrical structure, the end part is used for fixing the connecting frame 300, and the space in the cylinder can accommodate part of the structure of the output rotating sleeve 220 and the pipe shaft 500. Of course, the cylindrical structure is only an embodiment for providing a base for fixing the connecting frame 300 and providing an end for receiving the pipe shaft 500 at the side of the rotary driving member 400 and receiving the output swivel 220, and the specific structure thereof is not limited to the example herein.

Since the housing 100 is fixedly connected to the driving assembly 200, the housing 100 may be regarded as a part of the driving assembly 200, and the connecting frame 300 may be regarded as being disposed on the driving assembly 200.

The driving assembly 200 includes an actuator 210 and an output rotary sleeve 220, wherein the actuator 210 is a motor, the output rotary sleeve 220 is fixed on the output shaft of the motor, and the output rotary sleeve 220 can rotate along with the output shaft.

The output rotating sleeve 220 comprises a sleeve body 221, a connecting structure 222 at one end of the sleeve body 221, and a rotation driving structure 223 at the other end of the sleeve body 221, wherein a cavity 224 is formed in the sleeve body 221, and the cavity is a blind hole. The rotary driving structure 223 is four wedges having an inclined surface and a driving surface, the angle between the driving surface and the end surface of the output rotary sleeve 220 is 90 degrees, and the boundary line between the inclined surface and the driving surface is located on the longitudinal section of the sleeve body 221. The connecting structure 222 is a shaft sleeve at one end of the output rotating sleeve 220, which is sleeved on and fastened with the output shaft of the motor, and may be a threaded connection, a radial set screw or a key connection. Output swivel 220 is connected to the output shaft of actuator 210 by a connecting structure 222.

The rotating transmission member 400 has a disk-shaped structure and a through hole is formed at the center thereof. Four wedges 410 are evenly distributed on one end face of the rotary transmission member 400, each wedge 410 comprises an inclined surface and a force bearing surface perpendicular to the end face of the rotary transmission member 400, and the boundary line between the inclined surface and the force bearing surface is located on the longitudinal section of the disc-shaped structure. When the output rotary sleeve 220 and the rotary transmission member 400 approach each other in the axial direction, the wedges of the two may contact each other, but because of the inclined surface and the vertical driving surface, the contact between the two does not cause an obstruction to the movement in the axial direction. Of course, the driving surface may be a surface greater or less than 90 degrees, as long as the interaction does not hinder the axial movement.

The axial protrusion or recess of the rotation driving structure is not limited to the above wedge surface structure, as long as the side surface of the protrusion or recess can push the rotation driving member to rotate circumferentially.

The tubular shaft 500 is a through tube. Tubular shaft 500 passes through the central bore of rotary drive member 400 and is fixedly coupled to rotary drive member 400 to transmit torque. The portion of tube shaft 500 on the same side of wedge 410 of rotary actuator 400 is first end 510 and the portion on the opposite side of rotary actuator 400 is second end 520.

The connection frame 300 comprises a tray body and a side wall surrounding the tray body, wherein the side wall protrudes out of the end face of the tray body, and a containing cavity is enclosed between the side wall and the end face of the tray body. The center of the disk body is provided with a through hole. The side wall of the tray body is provided with internal threads.

The combination of the pipe shaft 500 and the rotation driving element 400 is connected to the connecting frame fixing portion 110 by the connecting frame 300, the rotation driving element 400 is located in the accommodating cavity of the connecting frame 300, the second end 520 of the pipe shaft 500 passes through the central hole of the connecting frame 300, and the first end 510 of the pipe shaft 500 is located in the cavity 224 of the output rotating sleeve 220 and is not in surface contact with the cavity 224. The driving surface of the wedge 410 of the rotary drive structure 223 is disposed in confronting relation to the force-receiving surface of the wedge 410 of the rotary drive member 400 and is capable of transmitting torque therebetween to drive the rotary drive member 400 in rotation.

Knife 600 includes a ring body 610 and an aperture disposed on ring body 610. Ring body 610 has a predetermined width in the axial direction, and holes are radially perforated through ring body 610, that is, upper and

lower holes

620 and 630 are coaxially provided on ring body 610. Ring 610 is formed as two arc-shaped blades bounded by a plane passing through the axis of upper bore 620 and the axis of ring 610. In this embodiment, the upper hole 620 and the lower hole 630 of the ring body 610 respectively penetrate through the two wall bodies; in alternative embodiments, ring 610 may also be provided without lower aperture 630, the end of tubular shaft 500 may not be in contact with the inner wall of ring 610, or a radially directed aperture/slot may be provided in the end wall to communicate with the lumen.

The edge of the ring 610 is located at the juncture of the inner surface of the ring and the end surface of the ring, the outer surface of the ring 610 is in direct contact with the fruit peel when in use, and the edge is located on one side of the inner surface to avoid directly scraping the inner surface of the fruit peel.

The aperture of annulus 610 is positioned to have a greater width, i.e., the end of the arcuate blade connected to the end of tubular shaft 500 has a width comparable to (slightly greater than) the diameter of the end of the tubular shaft. So set up, can be when the sword 600 is inserting in the fruit pokes out great space on the pulp in advance, the gyration of follow-up sword 600 of being convenient for. In this embodiment, the width of the ring 610 is not uniform in the circumferential direction, and the width of the part farther from the surface of the tubular shaft 500 is smaller and the width of the part nearer is larger. In some alternative embodiments, ring 610 may also be provided in a configuration having the same width.

The knife 600 is inserted through the upper bore 620 and the lower bore 630 on the second end 520 of the tube shaft 500, i.e., the ring 610 is matingly coupled through the bore of the tube shaft 500. Portions of ring 610 on either side of tubular shaft 500 project beyond the circumference of tubular shaft 500.

Of course, the arcuate blade could also be welded directly to the end of the tubular shaft 500 at one or both ends. The knife 600 may also be other shapes such as a straight or curved blade extending radially along the tube shaft 500 or a smooth or curved blade disposed on the end surface of the tube shaft 500 that gradually extends radially and toward the other end of the tube shaft 500. 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.

The coupling bracket 300 is fixed to the coupling bracket fixing portion 110 by a screw coupling, and can be easily disassembled, so that the combination of the pipe shaft 500 and the rotation transmitting member 400 can be easily disassembled. After the tube shaft 500 is removed, the first end 510 protrudes from the rotating transmission member 400 and the connecting frame 300, so that the juice in the fruit can be sucked through the first end 510.

In alternative embodiments, the rotary drive member may be axially movable relative to the tubular shaft, but may transmit torque therebetween, and may do so by keyed or form-fitting structures, such as a hexagonal socket centered on rotary drive member 400, and a portion of tubular shaft 500 engaged therewith or the tubular shaft as a whole having a prismatic surface.

In other alternative embodiments, tube shaft 500 and/or rotary drive 400 form a rotary pivotal connection with connecting frame 300.

Referring to figures 5 to 7, another in-fruit juice set is shown. Fig. 5 is a schematic structural view of an in-fruit juice producing apparatus according to an embodiment of the present disclosure, fig. 6 is a schematic sectional view of the in-fruit juice producing apparatus of fig. 5, and fig. 7 is an exploded schematic view of the in-fruit juice producing apparatus of fig. 5.

The in-fruit juicing device comprises a drive assembly 10, a tube shaft 20, a connecting member 30, a knife 40 and a mouth gag 50.

The drive assembly 10 includes an actuator 11 and an output shaft structure 12. The actuator 11 is an electric motor and has an output shaft. The output shaft structure 12 includes a shaft body 121, a connecting structure 122 at one end of the shaft body 121, a rotation driving structure 123 at the other end of the shaft body 121, and a cavity 124 in the shaft body 121, where the cavity is a blind hole. The rotation driving structure 123 is four circular bosses. The end surface of the shaft body 121 provided with the rotation driving structure 123 is also embedded with a magnet 60.

The pipe shaft 20 is an axially penetrating circular pipe. In alternative embodiments, the spool 20 may also be a square tube, a hexagonal prism tube, or other shaped tubing.

The connecting member 30 is a circular disc having a central hole through which it is fixed to a portion of the tube shaft 20 between both ends thereof, and the tube sections of the tube shaft 20 located at both sides of the connecting member 30 are respectively a first section and a second section, the first section being shorter for contacting the lips when sucking food and the second section being longer for connecting the knife 40 and stirring in the fruit. Meanwhile, the connecting member 30 is provided with a plurality of holes or recesses for the circular bosses on the output shaft structure 12 to be inserted and drive the connecting member 30 to rotate. The coupling member 30 may be or include a ferromagnetic material so that it may be attracted to the magnet 60 on the end face of the rotary drive structure 123 and retained on the output shaft structure 12 to form a releasable connection. The coupling 30 is torque-transmitting and removably connected to the output shaft structure 12 of the drive assembly 10 and provides a coaxial coupling of the tube shaft 20 to the output shaft, thereby driving rotation of the knife 40 at the distal end of the tube shaft 20.

The first section of the tube shaft 20 is located between the output shaft structure 12 and the connector 30, i.e., within the cavity 124 of the output shaft structure 12. Since the spool 20 is driven via the connection 30, the first section of the spool 20 may not come into contact with the drive assembly 10, avoiding oil or dust contamination of the drive assembly. The first section of the tube shaft 20 is disposed within the cavity 124 of the output shaft structure 12 and the cavity 124 is enclosed by the connector 30 to better prevent contamination of the first section of the tube shaft 20 from the environment.

The knife 40 is fixed to the end of the second section of the tubular shaft 20. The specific structure of the knife 40 and its attachment to the tubular shaft 20 may be as described with reference to the knife 600 of fig. 1-4.

In alternative embodiments, the coupling member 30 may be provided with an internal or external thread arrangement and the output shaft arrangement 12 may be provided with a corresponding thread arrangement, which may be threadably engaged to form a releasable and torque-transmitting connection.

The mosaic structure between the connecting member 30 and the output shaft structure of the driving assembly 10 is not limited to the above-described structure, for example, the connecting member may be provided with a protrusion, the output shaft structure may be provided with a corresponding recess, and a connection capable of transmitting torque is formed between the connecting member and the output shaft structure; or the top of the circular boss of the output shaft structure is provided with a cap structure, the corresponding connecting piece 30 is provided with a hole and a groove which is communicated with the hole and has a width smaller than the aperture, and the cap structure is inserted into the hole of the connecting piece 30 and rotates during connection, so that the circular boss enters the groove, and the axial positioning of the connecting piece and the unidirectional torque transmission connection between the circular boss and the output shaft structure are realized. Of course, the shape of the boss is not limited to a cylinder, and the structure of the cap is not limited to a disk, so long as at least part of the structure of the cap can protrude in the radial direction of the boss and can catch the connecting member.

In some alternative embodiments, the connecting member 30 may also be a prism structure coaxial with the tube shaft 20, and the outlet of the cavity 124 on the output shaft structure 12 is provided with a hole corresponding to the prism (with the same cross section), and a connection capable of transmitting torque is formed by matching the prisms. The prism may be or include a ferromagnetic material that removably engages the magnet 60 on the output shaft structure 12. Alternatively, the prism structure may be a rigid elastomeric material that is removably coupled by interference fit with the holes in the output shaft structure 12. Alternatively, the coupling member 30 or the tube shaft 20 may be provided with a separate resilient member for interference coupling, by which a releasable connection is formed with the output shaft structure 12.

In other alternative embodiments, the connection member 30 may not be provided, the pipe shaft 20 may be a prism structure as a whole, and the pipe shaft may be directly fixed to the output shaft structure 12, for example, a section of external thread is provided on the pipe shaft, an internal thread corresponding to the thread on the pipe shaft is provided at the outlet of the cavity 124 on the output shaft structure 12, and the two are connected by a thread to realize detachable connection and torque transmission. For another example, at least the portion of the pipe shaft contacting the output shaft structure 12 is made of ferromagnetic material, the output shaft structure 12 is provided with a magnet, the pipe shaft is detachably connected in the axial direction by a magnetic attraction manner, and the pipe shaft is matched with, for example, a prismatic outer surface structure to realize torque transmission with the output shaft structure 12. Or, torque transmission is realized between the tubular shaft and the output shaft structure 12 through prismatic matching, meanwhile, a groove is formed in the surface of the tubular shaft, and a bead or a pin which can stretch and retract along the radial direction is arranged on the output shaft structure 12 and is inserted into the groove in the surface of the tubular shaft to realize axial positioning (similar to a top bead which can be pressed into a handle on an umbrella, or connection between an inner hexagonal socket wrench and four sides on a wrench handle).

The mouth gag 50 is a cylindrical structure, the cylinder is sleeved outside the output shaft structure 12, one end of the cylinder is fixed on the driving component, the other end of the cylinder is provided with a mouth opening knife, the mouth opening knife is formed by a circle of thin-wall structure protruding from the end face of the cylinder, and the knife edge is positioned at the edge of the thin-wall structure. The thin-wall structure is provided with a notch. A certain distance is reserved between the boundary line of the thin-wall structure and the end face of the barrel and the outer surface of the barrel, namely, a step/shaft shoulder structure relative to the outer side wall of the thin-wall structure is formed at the boundary of the end face of the barrel and the outer peripheral surface. When the fruit peeler is used, one end of the opener 50, which is provided with the opening knife, can be inserted into a fruit, and then the step/shaft shoulder is used as a support to pry the fruit peel, so that the part of the fruit peel surrounded by the opening knife protrudes out of the surface of the fruit. The opening knife is provided with a notch, the notch 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 is a structure that is independent of other components, and is used and functions independently.

In alternative embodiments, the tubular shaft may be replaced by a solid shaft, as well as performing the function of juicing within the fruit.

Referring to fig. 8 to 16, fig. 8 is a schematic structural view of an in-fruit juice producing device according to an embodiment of the present disclosure, fig. 9 is an exploded schematic view of the in-fruit juice producing device of fig. 8, fig. 10 is a sectional view of the in-fruit juice producing device of fig. 8, fig. 11 is a partially enlarged schematic view I of fig. 10, fig. 12 is a sectional view a-a of fig. 10, fig. 13 is a sectional view B-B of fig. 10, fig. 14 is a plan view of a tube shaft 20a, a knife 40a and a connecting member 30a of the in-fruit juice producing device of fig. 8, fig. 15 is a schematic structural view of a connecting member 30a of the in-fruit juice producing device of fig. 8, and fig. 16 is a schematic structural view of the connecting member 30a after entering a first recess m and before rotating into a second recess n.

The in-fruit juice-producing device in this embodiment is substantially the same as the structure shown in fig. 5 to 7, except for the connecting member, the output shaft structure and the connection form therebetween. The differences are mainly further explained here.

The in-fruit juicing device comprises a drive assembly 10a, a tubular shaft 20a, a connecting member 30a, a knife 40a and an opener 50 a. The connecting member 30a is a disk structure having a central hole, and the outer edge of the disk structure is not a perfect circle, and the disk structure in this embodiment includes a rectangular plate and semicircular plates respectively disposed at both ends of the rectangular plate.

The drive assembly 10a includes an actuator 11a and an output shaft structure 12 a. The actuator 11a is a motor having an output shaft. The output shaft structure 12a includes a shaft body 121a, a connecting structure 122a at one end of the shaft body 121a, a rotation driving structure 123a at the other end of the shaft body 121a, and a cavity 124a in the shaft body 121a, which is a blind hole. The rotation driving structure 123a is a first recessed portion m and a second recessed portion n of the end surface of the output shaft structure 12 a. The first recess m has a contour shape conforming to the outer contour shape of the connecting member 30a, and a depth direction thereof is along the axial direction of the output shaft structure 12 a. The surface of the first recess m includes a bottom surface and a side surface m' surrounding the bottom surface. The second recess portion n is provided on a part of the side wall m' of the first recess portion m, recessed in the radial direction of the output shaft structure. The second recess n has a bottom wall o and two opposing side walls p and q normal to the axial direction of the output shaft structure 12a, wherein the side walls p are coplanar with the bottom surface of the first recess m. The side wall q is a first axial limiting end wall, and the side wall p is a second axial limiting end wall. The first axial limiting end wall is adapted to abut a knife-facing surface of the connector to limit axial movement thereof away from the output shaft structure. The second axial limiting end wall surface is arranged in a face-to-face mode with the first axial limiting end wall, and the second axial limiting end wall is used for abutting against the surface, facing away from the cutter, of the connecting piece to limit the second axial limiting end wall to be close to the output shaft structure in the axial direction.

The connecting piece 30a has an outer contour matched with the first concave portion m, so that the connecting piece 30a can axially enter the first concave portion m along the output shaft structure 12a along with the tubular shaft 20a, after the connecting piece 30a is contacted with the bottom surface of the first concave portion m, the tubular shaft 20a is rotated, the edge part of the semicircular plate of the connecting piece 30a can rotate to enter the second concave portion n, the edge part is clamped by the side walls p and q of the second concave portion n to realize axial positioning, and torque is transmitted between the bottom wall o and the semicircular plate. Of course, the outer contour of the first recess m does not need to be identical or identical to the outer contour of the connecting element 30a, but it is more convenient to have a partially identical outer contour and to rely on this identical portion to assist the connecting element 30a in entering the first recess m. In alternative embodiments, the shape of the connector 30a is triangular, rectangular, oval, polygonal, or other non-circular shape.

The part of the side wall of the connecting piece 30a, which is in contact with the bottom wall o, is a force bearing part, the part of the second concave part n and the bottom wall o are force application parts, the force bearing part and the bottom wall o form a torque transmission structure, the force application parts can generate acting force on the force bearing part, the acting force comprises force tangential to the side wall of the connecting piece 30a, and the force does not pass through the center of the shaft. The force application part can generate acting force along the normal direction of the contact point/contact surface on the force bearing part, and the acting force can directly generate torque on the pipe shaft instead of generating torque by friction force generated by the acting force.

In some alternative embodiments, the connection member and the output shaft structure 12a are provided with a concave-convex fit, the concave portion and the convex portion are both in the axial direction, part of the side walls of the concave portion and the convex portion are a force application portion and a force bearing portion, and torque can be generated by the action between the side walls.

In some alternative embodiments, the output shaft structure 12a is not fixedly connected to the motor output shaft. The motor housing end face may be secured to a sleeve within which an output shaft structure 12a is rotatably disposed, the output shaft structure 12a being driven by the motor output shaft. The sleeve can be integrated with the motor shell or the reducer shell.

In some alternative embodiments, the end surface of the output shaft structure 12a is provided with a first recess m, the side surface of the first recess m is not provided with a second recess n, and the bottom surface of the first recess m is embedded with a magnet. Correspondingly, the connecting member 30a is made of ferromagnetic material or contains ferromagnetic material, and the axial positioning of the two is realized by magnetic attraction. Or, the output shaft structure 12a is provided with a radial telescopic mechanism, the edge of the connecting piece 30a pushes back a pin or a column of the radial telescopic mechanism along the radial direction of the output shaft structure 12a when entering the first concave portion m, and the connecting piece 30a rebounds to the original position by elastic force after passing through the pin or the column, that is, protrudes out of the side surface of the first concave portion m, so as to form axial limit to the connecting piece 30 a.

The present disclosure also provides a mouth opener, which can open a mouth on the surface of a fruit, and includes a base body and a curved blade disposed on an end face of one end of the base body, wherein the curved blade may be a closed loop or an open loop, and the specific structure may refer to the above embodiment and the description of the mouth opener in fig. 5 to 11.

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

Claims

1. A pulp knife for being arranged at the tail end of a rod and being suitable for entering the inside of a fruit to scrape pulp comprises a plurality of arc-shaped blades, wherein each arc-shaped blade comprises a main body and a first connecting end and a second connecting end which are arranged at two ends of the main body, the first connecting end and/or the second connecting end of each arc-shaped blade are/is used for being connected to the rod, and the arc-shaped blades are arched relative to the surface of the rod.

2. The flesh knife of claim 1, wherein the flesh knife includes a torus and a radial hole provided along the torus, the radial hole being the mounting hole, and two half-rings on either side of the radial hole being the arc-shaped blade.

3. The flesh knife of claim 2 wherein the torus is formed by a tube cut from a circular tube.

4. The flesh knife of claim 2, wherein the number of the torus is 2, 2 of the tori are sleeved together in a crossing manner and the mounting holes of the two are coaxial.

5. The flesh knife of claim 1 wherein the number of arcuate blades is 2 to 4.

6. A flesh knife assembly comprising a knife bar and a flesh knife, wherein the flesh knife is as claimed in any one of claims 1 to 5, the flesh knife is inserted into one end of the knife bar through a mounting hole thereof, and the other end of the knife bar is used for being fixed to a rotary driving device.

7. The flesh knife assembly of claim 6, wherein the knife bar is a hollow bar.

8. The flesh knife assembly of claim 6, wherein an outer peripheral surface of the other end of the knife bar is provided with a connector for connecting the flesh knife assembly to the rotational drive means.