CN109938626B

CN109938626B - Screw, food processing cup and food processor

Info

Publication number: CN109938626B
Application number: CN201711387648.9A
Authority: CN
Inventors: 刘云祥; 熊秋亮
Original assignee: Guangdong Midea Consumer Electric Manufacturing Co Ltd
Current assignee: Guangdong Midea Consumer Electric Manufacturing Co Ltd
Priority date: 2017-12-20
Filing date: 2017-12-20
Publication date: 2022-02-18
Anticipated expiration: 2037-12-20
Also published as: CN109938626A

Abstract

The invention provides a screw, a food processing cup and a food processor, wherein the food processor comprises a connecting shaft, and the screw comprises: one end of the screw rod body is provided with a transmission hole with a closed end, the outer side wall surface of the screw rod body is provided with a first spiral rib, and the cross section area of the screw rod body is increased from top to bottom; the reinforcing piece is arranged in one end of the screw body, which is provided with the transmission hole, the transmission hole penetrates through the reinforcing piece and extends into the screw body, and the reinforcing piece is provided with a rotation stopping structure; the screw rod body is in driving connection with the connecting shaft through the transmission hole. This scheme has strengthened transmission hole intensity all around through set up the reinforcement around the transmission hole to can prevent that the transmission hole from breaking because of intensity is not enough, and then improved the bulk strength of screw rod. And the rotation stopping structure can be mutually embedded with the screw body to prevent the reinforcing part from rotating relative to the screw body when the connecting shaft drives the reinforcing part to rotate, and further can reliably transmit the torque of the connecting shaft to the screw so as to realize the rotation driving of the screw.

Description

Screw, food processing cup and food processor

Technical Field

The invention relates to the field of household appliances, in particular to a screw, a food processing cup and a food processor.

Background

At present, the screw rod of stock machine all includes the screw rod body and screw rod axle, the screw rod axle just can be connected with the drive such as motor like this to the realization is to the drive of screw rod, but this kind of structure, when the installation screw rod, the screw rod axle will pass the centre bore of the cup of food processing cup and be connected with the motor shaft, and be provided with sealed silica gel of usefulness in the centre bore, consequently, at the in-process of installation screw rod, the screw rod axle will pass the sealed silica gel of the center of the cup of food processing cup, and sealed silica gel can produce great resistance to the screw rod axle, thereby can lead to the installation hard, therefore make the installation feel relatively poor. Meanwhile, in the screw, the screw shaft needs to transversely penetrate through the center of the screw, so that the screw needs to be processed and formed for many times, and the overall processing cost of the screw is high.

Therefore, how to design a screw rod with low cost, simple installation, labor saving and good installation hand feeling becomes a problem to be solved urgently at present.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

To this end, it is an object of the present invention to provide a screw.

It is a further object of the present invention to provide a food processing cup.

Another object of the present invention is to provide a food processor comprising the above food processing cup.

To achieve the above object, an embodiment of a first aspect of the present invention provides a screw for a food processor, the food processor including a connecting shaft, the screw including: the cross-sectional area of the screw rod body is increased from one end of the screw rod body, which is far away from the transmission hole, to one end of the screw rod body, which is close to the transmission hole; the reinforcing part is arranged in one end of the screw body, which is provided with a transmission hole, a through hole is arranged on the reinforcing part, the transmission hole penetrates through the reinforcing part through the through hole and extends into the screw body, and a rotation stopping structure is arranged on the reinforcing part and can be matched with the screw body so as to prevent the reinforcing part from rotating relative to the screw body in the screw body; wherein, the screw rod body can be connected with the connecting axle drive through the transmission hole to rotate under the drive of connecting axle.

According to the embodiment of the invention, the screw comprises a screw body and a reinforcing piece, wherein one end of the screw body is provided with a transmission hole with a closed end, namely a blind hole, so that a connecting shaft can be directly inserted into the transmission hole to drive the screw. This kind of mounting means, because screw rod and connecting axle are split type structure, consequently, can carry out the installation of connecting axle earlier, then install sealing silica gel, screw rod etc. on the connecting axle in proper order, consequently, in the installation of screw rod, the screw rod can not receive the hindrance of sealing silica gel etc. consequently, can realize food processing cup's equipment smoothly, fast and laborsavingly, and then can improve the installation and experience. In addition, the structure of the screw can be simplified because the screw shaft is not arranged, thereby not only reducing the volume of the screw to be convenient for transportation and storage, but also reducing the processing cost of the screw to reduce the total cost of products. The screw rod body that has now generally is the working of plastics, poor and intensity of wearability is general, and the one end that is provided with the transmission hole in the screw rod body in this application is provided with the reinforcement, and it is internal that the transmission hole runs through the reinforcement and extends to the screw rod, has set up the round reinforcement in other words around the transmission hole, transmission hole material intensity all around can be strengthened in this kind of setting, thereby can prevent that the transmission hole from breaking because of intensity is not enough, and then can improve the bulk strength of screw rod, so that screw rod durable. Be provided with on the reinforcement and spline the structure, just so can utilize this structure of splines and the mutual embedding buckle of screw rod body, play the spacing effect of reinforcement, thereby when the connecting axle drives the reinforcement and rotates, just can utilize the buckle of the structure of splines and the screw rod body to promote the screw rod body and rotate, and then can prevent that the relative screw rod body of reinforcement from taking place to rotate, just so can be with the more stable firm of installation between reinforcement and the screw rod body, and then just can transmit the moment of torsion for the screw rod through the reinforcement, in order to realize the rotation drive to the screw rod, guarantee the normal work of food processor. Be provided with first spiral muscle on the surface of the screw rod body, specifically, first spiral muscle is used for the extrusion to smash and the material is eaten in the transmission, and first spiral muscle and the preferable integral type structure of screw rod body, because the production of being convenient for like this has avoided subsequent manufacturing. Wherein, preferably, the shape and size of the through hole are consistent with the shape and size of the transmission hole. This kind of setting makes the connecting axle can be directly be connected with the reinforcement drive, therefore can directly drive the reinforcement and rotate. Wherein, the cross-sectional area of the screw rod body is kept away from the screw rod body the one end of transmission hole to the screw rod body is close to the one end increase in transmission hole, preferably crescent, and the cross-sectional area of the screw rod body is preferred crescent from top to bottom promptly, just so can combine food processor's cup to eat the material from last to smash more garrulous down more, and then can improve the crushing effect of eating the material.

In addition, the screw provided according to the above embodiment of the present invention has the following additional technical features:

in the above technical solution, preferably, the rotation stopping structure is an elliptical surface provided on a side wall surface of the reinforcement.

In these technical scheme, the oval face of structure for setting up on the lateral wall face of reinforcement splines, just so can be through the ellipsoid of reinforcement and the buckle of screw rod body each other embedding of screw rod body, play the spacing effect of reinforcement, thereby when the connecting axle drives the reinforcement and rotates, just can utilize the buckle of structure and the screw rod body of splines to promote the screw rod body and rotate, and then can prevent that the relative screw rod body of reinforcement from taking place to rotate, just so can be with the more stable firm of installation between reinforcement and the screw rod body, and then just can transmit the moment of torsion for the screw rod through the reinforcement, in order to realize the rotation drive to the screw rod.

In any of the above technical solutions, preferably, the rotation stopping structure is a first rotation stopping protrusion and/or a rotation stopping notch provided on a side wall surface of the reinforcement member.

In these some technical schemes, the structure of splining still can be for setting up the protruding and/or the breach of splining of the first splining on the side wall face of reinforcement, just so can set up in the screw rod body correspondingly and first splining protruding corresponding breach, with the corresponding arch of splining, cooperation through arch and breach, thereby firmly the joint in the inside of the screw rod body with the reinforcement, can be in the same place the firm connection of reinforcement and screw rod body, thereby can prevent that the screw rod body from rotating relative to the reinforcement, the synchronous revolution of the screw rod body with the reinforcement has been guaranteed promptly, and then just can transmit the moment of torsion for the screw rod through the reinforcement, in order to realize the rotation drive to the screw rod.

In any of the above technical solutions, preferably, the rotation stopping structure is a second rotation stopping protrusion and/or a rotation stopping groove provided on an end surface of the reinforcing member.

In these technical schemes, the rotation stopping structure is a second rotation stopping protrusion and/or a rotation stopping groove which can also be arranged on the end surface of the reinforcing member, so that a groove corresponding to the second rotation stopping protrusion can be correspondingly arranged in the screw body, the protrusion corresponding to the rotation stopping groove realizes the fixed connection of the reinforcing member and the screw body through the matching of the protrusion and the groove, and the transmission of torque is also realized.

In any of the above technical solutions, preferably, a sum of fitting areas of the rotation stopping structure of the reinforcement and the screw body is greater than or equal to 5cm²。

In the technical schemes, the matching area of all the rotation stopping structures and the screw body is more than or equal to 5cm²Thus, the transmission area between the reinforcing member and the screw body can be ensured, so that the power transmitted between the reinforcing member and the screw body can be ensured.

In any of the above technical solutions, preferably, a preset gap S is provided between the transmission hole and the connection shaft, wherein preferably, S is greater than or equal to 0.02mm and less than or equal to 0.2mm, and further preferably, S is 0.1 mm.

In this technical scheme, preferred clearance fit between transmission hole and the connecting axle, be convenient for like this carry out the dismouting to the screw rod, therefore can improve the dismantlement convenience between screw rod and the connecting axle. The preset gap S is not easy to be too large, otherwise, the torque cannot be reliably transmitted between the connecting shaft and the transmission hole, meanwhile, the preset gap S is not easy to be too small, otherwise, the connecting shaft and the transmission hole are connected too tightly, and the screw rod is not easy to disassemble and assemble.

In any of the above technical solutions, preferably, a height L of the via hole in the axial direction of the screw body is greater than or equal to 2 mm.

In these technical scheme, through setting the height L of via hole on the axial direction of the screw body to more than or equal to 2mm for the connecting axle can with the cooperation length more than or equal to 2mm of reinforcement, therefore can ensure the cooperation length between reinforcement and the connecting axle, and then ensure the reliability of being connected between reinforcement and the connecting axle.

In any of the above technical solutions, preferably, the reinforcement is provided with a positioning hole.

In these technical scheme, the locating hole is used for assisting the reinforcement and fixes a position the screw body when processing to can prevent that the screw body from taking place the condition emergence of reinforcement off normal when injection moulding.

Preferably, when the reinforcing member is provided with a plurality of positioning holes, the plurality of positioning holes are symmetrically arranged on the reinforcing member. This kind of setting can further prevent the offset of reinforcement for the reinforcement can be installed in the inside of the screw body more firmly.

In any one of the above technical solutions, preferably, the transmission hole is a non-circular hole, and a shape of a portion where the connecting shaft is matched with the transmission hole is adapted to a shape of the transmission hole.

In these technical schemes, through setting the transmission hole to non-circular for the inner wall in transmission hole can interfere with the lateral wall of connecting axle each other, and then makes the connecting axle can't the free rotation in the transmission hole, and then just can improve the reliability of being connected between transmission hole and the connecting axle, and then makes the connecting axle can be connected with the reliable drive of screw rod, and then makes the connecting axle can transmit the moment of torsion for the screw rod reliably, and then the drive screw rod rotates.

In any of the above technical solutions, preferably, the transmission hole is an elliptical hole or a polygonal hole. Specifically, for example, the quadrangular hole or the hexagonal hole, wherein preferably, the quadrangular hole is a square hole, and the hexagonal hole is a square hole.

In these technical schemes, can be preferred set up the transmission hole to oval hole or four sides shape hole or hexagonal hole, because oval hole or four sides shape hole or hexagonal hole are more common and the simpler non-circular hole of structure, therefore better processing to can reduce the processing cost.

In any of the above technical solutions, preferably, the reinforcing member is a metal member.

In these technical schemes, the reinforcing member is preferably made of a metal member with relatively good strength, because the strength of the transmission hole can be ensured, and the strength insufficiency of the transmission hole can be prevented.

In any of the above technical solutions, preferably, the reinforcing member and the screw rod body are of an integrated structure or a split structure.

In the technical schemes, for the reinforcing piece serving as the metal piece, the reinforcing piece and the screw rod body are of an integrated structure, so that subsequent processing and manufacturing are avoided; the two are of split structures, so that the reinforcing part is convenient to replace.

In any one of the above technical solutions, preferably, an installation cavity with an opening at one end is arranged at one end of the screw rod body, and the transmission hole is arranged on the bottom wall of the installation cavity.

In these technical scheme, can set the lower extreme of the screw rod body to cavity, can stretch into the connecting axle as far as possible to the screw rod body on the one hand like this, therefore the connecting axle can drive with the position that the screw rod body is more close to the well upper portion of screw rod and be connected, so that can be close to the focus setting of screw rod with the drive position of screw rod and connecting axle, thereby just can ensure the stability after the screw rod installation, and then can prevent that the screw rod from rocking at the course of the work, therefore can reduce the friction that the screw rod takes place because of rocking with the cup promptly, thereby can further reduce the wearing and tearing of product. On the other hand is through setting up the installation cavity, can also set up a boss on the diapire of cup to when the installation screw rod, can stretch into the installation cavity with the boss, with the realization to the location installation of screw rod, therefore can improve the installation rate and the installation convenience of screw rod.

Preferably, the height of the screw rod body is H, the depth of the installation cavity is H, and H is not less than 1/3H and not more than 2/3H. The connecting shaft can extend into the middle of the screw rod through the arrangement, so that the center of gravity of the screw rod can be ensured, and the stability of the screw rod after installation can be further ensured.

In another technical scheme, preferably, the one end of the screw body is provided with an installation cavity with one open end, the bottom wall of the installation cavity is provided with a transmission column, and the transmission hole is formed in the transmission column.

In these technical scheme, also can set up a transmission post on the installation cavity diapire to set up the transmission hole on the transmission post, just so can be connected the drive that realizes the screw rod through the drive of transmission post and connecting axle, this kind of setting is through setting up the transmission post, therefore need not directly set up hole class structure on the screw rod body, therefore can improve the intensity of screw rod.

In above-mentioned technical scheme, preferably, the one end that the diapire of installation cavity was kept away from to the transmission post is located the installation cavity, or the one end that the diapire of installation cavity was kept away from to the transmission post stretches out outside the installation cavity.

In these technical scheme, can be with the weak point that the transmission post set up to make the transmission post hide in the installation cavity, this kind of setting can prevent that the transmission post from protruding the screw body, and then when placing the screw rod, can directly put the vertical knot of screw rod on the desktop, and then can prevent that the screw rod from rolling everywhere on the desktop. Simultaneously, also can be with the length of transmission post setting to make it stretch out from the diapire of cup, in order to be connected with the connecting axle outside the cup, this kind of structure can assemble into a whole with cup, screw rod etc. when dispatching from the factory, like this, when the user specifically uses, just need with food processing cup direct mount on the base, then with the transmission shaft cover establish the connecting epaxial one end can, this kind of mounting means, only need one step can the mountable target in place, therefore can improve the installation convenience of product.

In any of the above technical solutions, preferably, the screw further includes: the wear-resistant part is arranged on the outer surface of the screw rod body, and a second spiral rib is arranged on one surface of the wear-resistant part, which is far away from the screw rod body; the wear-resistant part is wrapped on the outer surface of one end, close to the mounting cavity, of the screw body, or the wear-resistant part is wrapped on the whole outer surface of the screw body.

In these technical scheme, the accessible sets up the wearing parts on the screw rod body to can separate the inner wall of the cup of screw rod and food processing cup each other through the wearing parts, thereby friction between reducible screw rod and the cup, and then can reduce the wearing and tearing of screw rod when the screw rod rotates, in order to solve the problem of the easy wearing and tearing damage of screw rod. This kind of structure, on the one hand owing to reduced the wearing and tearing when the screw rod single use, consequently, after the product uses for a long time, the screw rod can not wear and tear seriously, therefore can not reduce the performance of product because of the wearing and tearing of screw rod promptly, and then can ensure that the product still has better performance after using for a long time. On the other hand, the abrasion of the screw is reduced, so that particles falling off due to the abrasion of the screw can be reduced, the situation that processed food is polluted by the particles falling off due to the abrasion of the screw can be prevented, the health of consumers is damaged, and the cleanness and the sanitation of the food can be ensured. In addition, can also protect the surface of screw rod through setting up the wearing parts to can prevent that the screw rod from being dyed by the pigment of food itself at the course of the work, and then make the screw rod change and wash, can keep the clean and tidy degree of screw rod after long-term the use again, and then can ensure the aesthetic property of screw rod and cooking machine for a long time.

Wherein, can regard as the cup as the crushing cup of the juice extraction cup or double screw food processor of vertical stock machine, at this moment, the clearance between the upper end of screw rod and the cup is great, therefore the upper end of screw rod is difficult for taking place the wearing and tearing with the cup, and the clearance between the lower extreme of screw rod and the cup is less, therefore the lower extreme of screw rod is very easy to take place wearing and tearing with the cup, consequently, can only set up the wearing parts on the lower extreme of screw rod, only set up the wearing parts in the more serious position of screw rod wearing and tearing promptly, just so can reduce the coverage area of wearing parts, therefore can simplify the structure of product, reduce the cost of product. Of course, a layer of wear-resistant part can be arranged on the outer surface of the whole screw rod, so that the screw rod can be protected in all directions.

Preferably, the wear-resistant part is a wear-resistant layer matched with the outer surface of the screw rod body, so that the wear-resistant part can be tightly attached to the outer surface of the screw rod body, the original structure of the screw rod body cannot be changed, and the screw rod body can still normally process food.

Wherein, preferably, the second spiral muscle still includes third spiral muscle, and the third spiral muscle is used for increasing the quantity of the spiral muscle on the screw rod to can improve the screw rod and to the treatment effect of eating the material, in order to improve the juice rate.

In any one of the above technical solutions, preferably, a first positioning structure is disposed on an end portion of one end of the screw body, which is far away from the installation cavity.

In these technical scheme, can set up first location structure on the upper end of the screw rod body, and set up a second location structure on the bowl cover of food processing cup, just so can fix a position the both ends of screw rod through connecting axle and second location structure, and then can prevent that the screw rod from rocking at the rotation in-process, therefore can improve the installation stability of screw rod.

In any of the above technical solutions, preferably, the first positioning structure is a positioning groove or a positioning protrusion.

In these technical scheme, can be with the one end drive of screw rod be connected to the connecting axle, and set up a location arch or constant head tank on the terminal surface with the other end of screw rod, correspond on the bowl cover simultaneously and set up a constant head tank or location arch to can utilize the protruding cooperation with the constant head tank of location to fix a position the other end of screw rod, so that can fix a position simultaneously the both ends of screw rod, and then can prevent screw rod skew wearing and tearing.

Preferably, the first positioning structure is a positioning groove, and the second positioning structure is a positioning protrusion. Because the positioning groove is directly processed on the screw rod, the positioning groove is more convenient, and the processing difficulty of the screw rod can be reduced.

In any of the above technical solutions, preferably, the screw further includes: the protective sleeve is arranged in the positioning groove or sleeved on the positioning bulge.

In these technical scheme, can set up a protective sheath on first location structure, for example wear-resisting silica gel etc. this kind of setting can utilize the protective sheath to form a buffering space in the location junction of bowl cover and screw rod on the one hand to can compensate the installation error of screw rod when installation location, and provide a buffering deformation space for the drunkenness of screw rod during operation. In addition, can also prevent screw rod and bowl cover direct contact through setting up wear-resisting silica gel, and then can reduce the wearing and tearing between screw rod and the bowl cover to ensure that the screw rod can not worn and torn badly. Wherein, specifically, when first location structure is the location arch, can directly overlap the protective sheath and establish on the location arch to can protect the location arch, and when first location structure was the constant head tank, can set up a week with the protective sheath along the lateral wall and the diapire of constant head tank, so that can protect the whole cell wall of constant head tank.

In any of the above technical solutions, preferably, the screw body includes: the inner core is provided with an installation cavity at one end, and the reinforcing piece is arranged on the bottom wall of the installation cavity; one end of the outer core is coated on the outer surface of one end of the inner core, which is far away from the installation cavity, and the wear-resistant piece is arranged on the outer surface of the other end of the inner core; the first spiral rib is arranged on the outer core, the third spiral rib is arranged on the outer surface, provided with the wear-resistant part, of the inner core, and the second spiral rib covers the third spiral rib.

Among these technical scheme, preferably set up the screw rod body into the structure including inner core and outer core, this kind of setting, when processing the screw rod, can be earlier with inner core injection moulding, then mould plastics out outer core outside the inner core through inlaying injection moulding's mode, this kind of setting is compared with the integrative injection moulding's of screw rod body mode, can improve the surface quality of the screw rod body, therefore can improve the comprehensive properties of the screw rod body. Preferably, the outer core only wraps a part of the inner core far away from the installation cavity, namely the bottom of the inner core protrudes out of the outer core, and at the moment, the wear-resistant piece can be directly arranged on the outer surface of the part of the inner core extending out of the outer core. Simultaneously, can set up first spiral muscle on outer core to set up the third spiral muscle on the position that is not covered by outer core on the inner core, and cover the second spiral muscle of wearing parts on the third spiral muscle, so that wearing parts can set up better on the inner core, in order to improve the joint strength between wearing parts and the inner core.

Of course, in another embodiment, the outer core may be wrapped around the entire outer surface of the inner core, and in this case, the wear-resistant member may be disposed on the entire outer core or only on the lower portion of the outer core.

In any of the above technical solutions, preferably, a layer of encapsulating inner shell is disposed on the inner wall of the mounting cavity and the end face of the open end of the inner core, wherein the reinforcing member is disposed between the encapsulating inner shell and the inner core.

In these technical scheme, through set up an encapsulation inner shell on the internal surface of outer core and the terminal surface of the open end of inner core to can ensure the internal surface quality of screw rod body through the encapsulation inner shell. Therefore, the processing quality requirement of the inner core can be reduced during specific production processing, so that the cost of the product is reduced.

In any of the above technical solutions, preferably, the inner core and the reinforcing member are of an integral structure, or the inner core and the reinforcing member are of a split structure.

In these technical scheme, the inner core and the reinforcement are preferably of an integral structure, and the mechanical property of the integral structure is good, so that the connection strength between the inner core and the reinforcement can be ensured, and in addition, the inner core and the reinforcement can be integrally manufactured and produced in batch, so that the production efficiency of products is improved, and the production and processing cost of the products is reduced. Of course, the inner core and the reinforcing piece can be of a split structure, namely a detachable structure.

Wherein, preferentially, the integrative injection moulding of inner core and reinforcement, this kind of setting can make the joint strength between inner core and the reinforcement better, and also can avoid forming the gap between inner core and reinforcement, can realize the seamless connection between inner core and the reinforcement promptly, therefore more do benefit to the washing of product. Meanwhile, the processing mode of the integral injection molding is simple in processing and low in cost, so that the manufacturing and processing cost of the product can be reduced.

In any of the above technical solutions, preferably, the inner core and the outer core are of an integral structure. Because the mechanical properties of integral type structure is good, therefore can ensure the joint strength between inner core and the outer core, in addition, still can make inner core and outer core an organic whole, batch production to improve the production efficiency of product, reduce the production and processing cost of product.

In any of the above technical solutions, preferably, the inner core and the inner package shell are of an integral structure. Because the mechanical properties of integral type structure is good, therefore can ensure the joint strength between inner core and the encapsulation inner shell, in addition, still can make inner core and encapsulation inner shell an organic whole, batch production to improve the production efficiency of product, reduce the production and processing cost of product.

In any of the above solutions, preferably, the inner core and/or the outer core are made of plastic.

In these solutions, the inner core and/or the outer core are preferably made of plastic, since this reduces the cost of the product. The inner core and/or the outer core can also be provided in metal, in order to be able to increase the strength of the screw.

In any of the above technical solutions, preferably, the wear-resistant member and the screw rod body are of an integrated structure.

In these technical scheme, wearing parts and the screw rod body are preferred integral type structure, because the mechanical properties of integral type structure is good, therefore can ensure the joint strength between wearing parts and the screw rod body, in addition, still can make wearing parts and screw rod body an organic whole, batch production to improve the production efficiency of product, reduce the production and processing cost of product. Of course, the wear-resistant part and the screw body can be of a split structure, and the structure can be detached.

Wherein, preferentially, wearing parts and the integrative injection moulding of screw rod body, this kind of setting can make the joint strength between wearing parts and the screw rod body better, and also can avoid forming the gap between wearing parts and the screw rod body, can realize the seamless connection between wearing parts and the screw rod body promptly, therefore more do benefit to the washing of product. Meanwhile, the processing mode of the integral injection molding is simple in processing and low in cost, so that the manufacturing and processing cost of the product can be reduced.

In any of the above solutions, preferably, the screw body is made of plastic or metal.

In these solutions, the screw body can be made of metal or plastic, and the screw body can be made of metal, which can increase the strength of the screw but has a high cost, while the screw body made of plastic can reduce the cost of the product but has a slightly lower strength.

In any of the above solutions, preferably, the wear resistant member is made of metal or glass or ceramic.

In these technical solutions, the wear-resistant part is preferably made of metal, glass, ceramic and the like with good wear resistance, which are relatively common and thus easily purchased, and at the same time, the hardness of the metal, glass and ceramic is good and thus the wear resistance of the screw can be ensured, wherein, further preferably, the wear-resistant layer is made of stainless steel, glass, ceramic, aluminum or titanium alloy.

Wherein, the screw rod body includes in proper order from the one end of keeping away from the transmission hole to the one end that is close to the transmission hole: the device comprises a positioning section, a blanking section, a propelling section and a grinding section; wherein, the transmission hole sets up on propulsion section and grinding section. Specifically, a first positioning structure may be provided on the positioning section for positioning the screw to prevent the screw from shaking during operation, the discharging section may be used to cut the food dropped from the discharging opening into pieces and primarily crush the food, the pushing section may be used to compact and push the food to the grinding section, and the grinding section may be used to further crush the food.

An embodiment of a second aspect of the present invention provides a food processing cup for a food processing machine, the food processing machine including a base, a driving device disposed in the base, the driving device including a first driving shaft, the food processing cup including: one end of the first cup body is open and hollow, and a mounting hole is formed in the bottom wall of the first cup body; one end of the connecting shaft is in driving connection with the first driving shaft, and the other end of the connecting shaft extends into the first cup body through the mounting hole; the screw rod is arranged in the first cup body and is connected with one end, extending into the first cup body, of the connecting shaft through the transmission hole; the cup cover can be covered on the first cup body; the first driving shaft and the connecting shaft are of an integrated structure, or the first driving shaft and the connecting shaft are of a split structure.

According to the food processing cup provided by the embodiment of the invention, the screw rod provided by any embodiment of the first aspect is provided, so that the food processing cup provided by the embodiment of the invention also has all the beneficial effects of the screw rod provided by any embodiment of the first aspect. This is not to be taken as an exhaustive list. The first driving shaft and the connecting shaft can be of an integrated structure, and can also be two independent shafts, in other words, the first driving shaft can be directly extended into the first cup body to drive the screw rod to rotate, and the first driving shaft can also be connected with the connecting shaft to drive the screw rod to rotate.

In the above technical solutions, preferably, the food processing cup further includes: and the filter screen is arranged in the first cup body and is positioned between the side wall of the first cup body and the screw rod.

In the technical schemes, the food processor can be set into a single-cup single-screw food processor, at the moment, a filter screen can be arranged in the first cup of the food processing cup, so that the food processing cup can be used for the single-screw food processor, the single-screw food processor can crush food materials by using the first cup and the screw, and after the food materials are crushed, juice and residue separation of the food can be realized by the filter screen.

In the above technical solutions, preferably, the food processing cup further includes: and the sealing element is positioned in the first cup body, sleeved on the connecting shaft and used for sealing the mounting hole.

In these technical scheme, can set up a sealing member between the terminal surface of mounting hole or mounting hole and connecting axle to the sealed mounting hole, this kind of setting makes the connecting axle can with mounting hole sealing connection, thereby can improve the leakproofness of food processing cup, and then can prevent that the food juice of first cup from leaking.

Wherein, preferably, the sealing member is sealing silica gel because sealing silica gel's sealing performance is good to can ensure the leakproofness, and sealing silica gel is difficult for reacting with food juice, therefore can not pollute food juice, in addition, sealing silica gel is more common, therefore easily purchases, thereby can reduce cost.

In above-mentioned a plurality of technical scheme, preferably, be provided with second location structure on the bowl cover, second location structure can with the screw rod on the first location structure cooperation to fix a position the one end of screw rod.

In above-mentioned a plurality of technical scheme, preferably, be provided with the boss on the diapire of first cup, the mounting hole sets up on the boss, and the boss can stretch into the installation intracavity of screw rod to fix a position the installation to the screw rod.

In these technical schemes, can set up second location structure on the bowl cover to can fix a position the one end of screw rod, and the other end of screw rod can the drive be connected to the connecting axle, thereby also can be fixed a position under the effect of connecting axle, just so can realize fixing a position the both ends of screw rod, and then can prevent the screw rod skew.

Wherein, preferably, the boss is formed by the bottom wall of the first cup body sinking into the first cup body. This kind of setting makes boss and first cup can form the integral type structure, therefore can improve the intensity between boss and the first cup. Simultaneously, this kind of setting also makes boss and first cup can integrated into one piece, therefore can reduce the processing cost of product.

In the above technical solutions, preferably, the food processing cup further includes: the second cup body is arranged on the first cup body and is communicated with the first cup body; the extruding device is arranged in the second cup body and is used for extruding the food materials entering the second cup body from the first cup body so as to separate juice and residue of the food materials; the driving device further comprises a second driving shaft, and the second driving shaft is connected with the extrusion device and used for driving the extrusion device to rotate.

In these technical scheme, still can set up a second cup and an extrusion device to can utilize second cup and extrusion device to realize the extrusion of eating the material, with the juice sediment separation of realizing eating the material, can set up the food processor into double screw food processor, can go on in two cups respectively with smashing and the extrusion of eating the material like this. Wherein, specifically, this kind of food processing cup's theory of operation does: after the food materials enter the first cup body, the screw rod is matched with the side wall of the first cup body under the driving of the first driving shaft so as to crush the food materials, the crushed food materials enter the extrusion cup under the action of the screw rod, and the extrusion device extrudes the food materials under the driving of the second driving shaft so as to separate juice and residue of the food materials. This technical scheme is with the crushing process and the crowded juice slag removal process of eating the material separately go on, and at crushing in-process, owing to need not crowded juice row sediment, therefore, need not set up parts such as filter screen and rotatory brush in the first cup, thereby make the edible material in the first cup can be smashed under the combined action of first cup and screw rod, simultaneously can set up the roughly level of extrusion device at crowded juice row sediment in-process, can set the crowded juice row sediment system into horizontal, thereby can be very convenient for separate the juice sediment of food, the juice rate of food processor can be ensured on the one hand in this kind of setting, on the other hand can avoid using the filter screen, spare parts such as rotatory brush, thereby make the simple structure and the easy installation of food processor, simultaneously owing to cancelled the filter screen, therefore can reduce user's washing difficulty, and then can promote user experience.

Preferably, the driving device is a motor, and the first driving shaft and/or the second driving shaft are/is a motor shaft.

In these technical solutions, it is preferable to drive the screw and/or the extruding device to rotate by a motor, because the motor is a common driving device in the food processor, and is easy to purchase, thereby reducing the cost of the product.

Embodiments of a third aspect of the present invention provide a food processor comprising a base, a drive arrangement disposed within the base; and the screw provided in any embodiment of the first aspect connected to the drive means, or the food processing cup provided in any embodiment of the second aspect, the food processing cup being mountable on the base.

According to the food processor provided by the embodiment of the present invention, the screw provided by any embodiment of the first aspect or the food processing cup provided by any embodiment of the second aspect is provided, so that the food processor provided by the embodiment of the present invention has all the advantages of the screw provided by any embodiment of the first aspect, or has all the advantages of the food processing cup provided by any embodiment of the second aspect, which are not listed here.

In any of the above technical solutions, preferably, the food processor is a juice extractor or a juicer, and of course, the food processor may also be other structures besides a juice extractor and a juicer, such as a juicer, a wall breaking machine, and the like.

Additional aspects and advantages in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a screw provided according to an embodiment of the present invention;

FIG. 2 is another schematic structural view of a screw provided according to an embodiment of the present invention;

FIG. 3 is a further schematic view of a screw according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a reinforcing member of the screw provided according to the first embodiment of the present invention;

FIG. 5 is a schematic structural view of a reinforcing member of a screw provided in accordance with a second embodiment of the present invention;

FIG. 6 is another schematic structural view of the reinforcement of the screw provided by the embodiment of FIG. 5;

FIG. 7 is a schematic structural view of a reinforcing member of the screw provided according to a third embodiment of the present invention;

FIG. 8 is a schematic structural view of a reinforcing member of the screw provided in accordance with a fourth embodiment of the present invention;

FIG. 9 is another schematic structural view of the reinforcement of the screw provided by the embodiment of FIG. 8;

FIG. 10 is a schematic structural view of a reinforcing member of the screw provided in accordance with a fifth embodiment of the present invention;

FIG. 11 is a schematic structural view of a reinforcing member of the screw provided in accordance with a sixth embodiment of the present invention;

FIG. 12 is a schematic view of a portion of a food processor according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a food processor according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 13 is:

1 screw rod, 10 screw rod bodies, 102 inner cores, 1022 installation cavities, 1024 third spiral ribs, 104 outer cores, 1042 first spiral ribs, 106 encapsulated inner shells, 12 transmission holes, 14 wear-resistant parts, 142 second spiral ribs, 16 positioning grooves, 18 reinforcing parts, 182 via holes, 184 positioning holes, 186 rotation stopping structures, 19 protective sleeves, 2 first cups, 22 installation holes, 3 connecting shafts, 4 cup covers, 5 filter screens, 6 sealing parts, 7 bases and 72 first driving shafts.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

A screw 1, a food processing cup, and a food processor provided according to an embodiment of the present invention are described below with reference to fig. 1 to 13.

As shown in fig. 1 to 11, an embodiment of a first aspect of the present invention provides a screw 1 for a food processor, the food processor including a connecting shaft 3, the screw 1 including: the screw rod comprises a screw rod body 10, wherein one end of the screw rod body 10 is provided with a transmission hole 12 with a closed end, the outer side wall surface of the screw rod body 10 is provided with a first spiral rib 1042, and the cross section area of the screw rod body 10 is increased from one end of the screw rod body 10 far away from the transmission hole 12 to one end of the screw rod body 10 close to the transmission hole 12; the reinforcing part 18 is arranged in one end of the screw body 10, which is provided with the transmission hole 12, a through hole 182 is arranged on the reinforcing part 18, the transmission hole 12 penetrates through the reinforcing part 18 through the through hole 182 and extends into the screw body 10, a rotation stopping structure 186 is arranged on the reinforcing part 18, and the rotation stopping structure 186 can be matched with the screw body 10 to prevent the reinforcing part 18 from rotating relative to the screw body 10 in the screw body 10; wherein, the screw body 10 can be in driving connection with the connecting shaft 3 through the transmission hole 12 to rotate under the driving of the connecting shaft 3.

According to the embodiment of the invention, the screw 1 comprises the screw body 10 and the reinforcing element 18, wherein one end of the screw body 10 is provided with the transmission hole 12 with one closed end, namely a blind hole, so that the connecting shaft 3 can be directly inserted into the transmission hole 12 to drive the screw 1, the structure can replace the screw shaft through the transmission hole 12 by arranging the transmission hole 12, and further can eliminate the screw shaft, so that when the food processing cup is specifically assembled, the connecting shaft 3 can be firstly installed in the installation hole 22 of the cup body, then the screw 1 is installed at the upper end of the connecting shaft 3, and then the food processing cup can be integrally installed on the base 7. This kind of mounting means, because screw rod 1 and connecting axle 3 are split type structure, consequently, can carry out the installation of connecting axle 3 earlier, then install sealing silica gel, screw rod 1 etc. on connecting axle 3 in proper order, consequently, in the installation of screw rod 1, screw rod 1 can not receive the hindrance of sealing silica gel etc. consequently, can realize food processing cup's equipment smoothly, fast and laborsavingly, and then can improve the installation and experience. In addition, the structure of the screw 1 can be simplified because the screw shaft is not arranged, so that the volume of the screw 1 can be reduced for convenient transportation and storage, and the processing cost of the screw 1 can be reduced for reducing the total cost of products. The existing screw body 10 is a plastic part generally, the abrasion resistance is poor and the strength is general, and the one end that is provided with transmission hole 12 on the screw body 10 in this application is provided with reinforcement 18, and transmission hole 12 runs through reinforcement 18 and extends to in the screw body 10, have set up round reinforcement 18 around transmission hole 12 in other words, this kind of setting can strengthen transmission hole 12 material intensity all around, thereby can prevent that transmission hole 12 from breaking because of the intensity is not enough, and then can improve the bulk strength of screw 1, so that screw 1 is durable. Be provided with on reinforcement 18 and spline structure 186, just so can utilize this to spline structure 186 and the mutual embedding buckle of screw rod body 10, play the spacing effect of reinforcement 18, thereby when connecting axle 3 drives reinforcement 18 and rotates, just can utilize the buckle of spline structure 186 and screw rod body 10 to promote the screw rod body 10 and rotate, and then can prevent that reinforcement 18 from taking place to rotate relative screw rod body 10, just so can be with the more stable firm of installation between reinforcement 18 and the screw rod body 10, and then just can transmit the moment of torsion for screw rod 1 through reinforcement 18, in order to realize the rotation drive to screw rod 1, guarantee the normal work of food processor. Be provided with first spiral muscle 1042 on the surface of the screw body 10, specifically, first spiral muscle 1042 is used for the extrusion to smash and transmit and eat the material, and first spiral muscle 1042 is the preferred integral type structure with screw body 10, because can be convenient for produce like this, has avoided subsequent manufacturing. Wherein, the shape and size of the through hole 182 are preferably consistent with those of the driving hole 12. This arrangement enables the connecting shaft 3 to be directly in driving connection with the reinforcing element 18 and thus to directly drive the reinforcing element 18 in rotation. Wherein, the cross-sectional area of the screw body 10 is increased from the end of the screw body 10 far away from the transmission hole 12 to the end of the screw body 10 close to the transmission hole 12, preferably gradually increased, that is, the cross-sectional area of the screw body 10 is preferably gradually increased from top to bottom, so that the cup body of the food processor can be combined to crush food materials from top to bottom and break the food materials more and more, and further the crushing effect of the food materials can be improved.

In the above embodiment, preferably, as shown in fig. 4, the rotation stop structure 186 is an elliptical surface provided on the side wall surface of the reinforcement member 18.

In these embodiments, the rotation stopping structure 186 is an elliptical surface disposed on the sidewall surface of the reinforcing member 18, so that the elliptical surface of the reinforcing member 18 and the screw body 10 can be engaged with each other to limit the reinforcing member 18, when the connecting shaft drives the reinforcing member 18 to rotate, the rotation stopping structure 186 and the screw body 10 can be used to push the screw body 10 to rotate, so as to prevent the reinforcing member 18 from rotating relative to the screw body 10, so that the installation between the reinforcing member 18 and the screw body 10 is more stable and reliable, and further the torque can be transmitted to the screw through the reinforcing member 18, so as to realize the rotation driving of the screw.

In another embodiment, as shown in fig. 5 and 6, the rotation stopping structure 186 is preferably a first rotation stopping protrusion and/or a rotation stopping notch provided on a side wall surface of the reinforcing member 18.

In these embodiments, the rotation stopping structure 186 may also be a first rotation stopping protrusion and/or a rotation stopping notch disposed on the side wall surface of the reinforcing member 18, so that a notch corresponding to the first rotation stopping protrusion can be correspondingly disposed in the screw body 10, and a protrusion corresponding to the rotation stopping notch can be disposed in the screw body 10, and through the cooperation of the protrusion and the notch, the reinforcing member 18 is firmly clamped in the screw body 10, the reinforcing member 18 and the screw body 10 can be firmly connected together, so that the screw body 10 can be prevented from rotating relative to the reinforcing member 18, that is, the synchronous rotation of the screw body 10 and the reinforcing member 18 is ensured, and further, the torque can be transmitted to the screw through the reinforcing member 18, so as to realize the rotation driving of the screw.

In still another embodiment, preferably, as shown in fig. 7 to 11, the rotation stopping structure 186 is a second rotation stopping protrusion and/or a rotation stopping groove provided on the end surface of the reinforcing member 18.

In these embodiments, the rotation stopping structure 186 is a second rotation stopping protrusion and/or a rotation stopping groove that can be further disposed on the end surface of the reinforcing member 18, so that a groove corresponding to the second rotation stopping protrusion can be correspondingly disposed in the screw body 10, and a protrusion corresponding to the rotation stopping groove realizes the fixed connection between the reinforcing member 18 and the screw body 10 by the cooperation of the protrusion and the groove, and also realizes the transmission of torque.

In any of the above embodiments, the sum of the fitting areas of the rotation stopping structure 186 of the reinforcement 18 and the screw body 10 is preferably greater than or equal to 5cm²。

In these embodiments, the area of the rotation stopping structures 186 engaged with the screw body 10 should be greater than or equal to 5cm²This ensures a transmission area between the reinforcement 18 and the screw body 10 to ensure power transmission between the reinforcement 18 and the screw body 10.

In any of the above embodiments, a predetermined gap S is preferably provided between the transmission hole 12 and the connecting shaft 3, wherein preferably 0.02mm ≦ S ≦ 0.2mm, and further preferably 0.1 mm.

In these embodiments, the transmission hole 12 and the connecting shaft 3 are preferably in clearance fit, which facilitates the assembly and disassembly of the screw 1, and thus improves the convenience of the assembly and disassembly of the screw 1 and the connecting shaft 3. The preset gap S is not easy to be too large, otherwise, the torque cannot be reliably transmitted between the connecting shaft 3 and the transmission hole 12, meanwhile, the preset gap S is not easy to be too small, otherwise, the connecting shaft 3 and the transmission hole 12 are connected too tightly, and the screw rod 1 cannot be easily disassembled and assembled.

In any of the above embodiments, preferably, as shown in fig. 12, the height L of the through hole 182 in the axial direction of the screw body 10 is greater than or equal to 2 mm.

In these embodiments, by setting the height L of the through hole 182 in the axial direction of the screw body 10 to be 2mm or more, the fitting length of the connecting shaft 3 with the reinforcing member 18 can be 2mm or more, and thus the fitting length between the reinforcing member 18 and the connecting shaft 3 can be ensured, and the connection reliability between the reinforcing member 18 and the connecting shaft 3 can be ensured.

In any of the above embodiments, the reinforcing member 18 is preferably provided with positioning holes 184.

In these embodiments, the positioning hole 184 is used to assist the reinforcement 18 to be positioned on the screw body 10 during processing, so as to prevent the reinforcement 18 from being misaligned during the injection molding of the screw body 10.

Preferably, when the reinforcement member 18 is provided with the positioning holes 184, the number of the positioning holes 184 is plural, and the plural positioning holes 184 are symmetrically arranged on the reinforcement member 18. The positional deviation of the reinforcing member 18 is further prevented, so that the reinforcing member 18 can be more firmly mounted inside the screw body 10.

In any of the above embodiments, preferably, the transmission hole 12 is a non-circular hole, and the shape of the portion of the connecting shaft 3 that is engaged with the transmission hole 12 is matched with the shape of the transmission hole 12.

In these embodiments, the transmission hole 12 is configured to be non-circular, so that the inner wall of the transmission hole 12 can interfere with the side wall of the connecting shaft 3, and the connecting shaft 3 cannot freely rotate in the transmission hole 12, and therefore the connection reliability between the transmission hole 12 and the connecting shaft 3 can be improved, and further the connecting shaft 3 can be reliably connected with the screw 1, and further the connecting shaft 3 can reliably transmit the torque to the screw 1, and further the screw 1 is driven to rotate.

In any of the above embodiments, the transmission hole 12 is preferably an elliptical hole, a polygonal hole. Specifically, for example, the quadrangular hole or the hexagonal hole, wherein preferably, the quadrangular hole is a square hole, and the hexagonal hole is a square hole.

In these embodiments, it is preferable to provide the transmission hole 12 as an elliptical hole, a quadrangular hole, or a hexagonal hole, because the elliptical hole, the quadrangular hole, or the hexagonal hole is a non-circular hole which is relatively common and simple in structure, and thus is relatively easy to machine, thereby reducing the machining cost. When the driving hole 12 is an elliptical hole, a quadrangular hole or a hexagonal hole, the through hole 182 may be correspondingly disposed as an elliptical hole as shown in fig. 10 or as a quadrangular hole as shown in fig. 11, and the through hole 182 may be correspondingly disposed as a quadrangular hole or as a hexagonal hole as shown in fig. 4 to 9.

In any of the above embodiments, the reinforcing member 18 is preferably a metal member.

In these embodiments, the reinforcing member 18 is preferably made of a metal member having a relatively high strength, because it can secure the strength of the power transmission hole 12, thereby preventing the strength of the power transmission hole 12 from being insufficient.

In any of the above embodiments, the reinforcing member 18 is preferably of a one-piece or split structure with the screw body 10.

In these embodiments, for the reinforcement 18 as a metal part, the reinforcement 18 and the screw body 10 are integrated, so as to avoid subsequent processing and manufacturing; the two are of split structure, so that the reinforcing part 18 is convenient to replace.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, an installation cavity 1022 with an open end is disposed on one end of the screw body 10, and the transmission hole 12 is disposed on a bottom wall of the installation cavity 1022.

In these embodiments, the lower end of the screw body 10 can be set to be hollow, so that on the one hand, the connecting shaft 3 can be inserted into the screw body 10 as much as possible, and therefore the connecting shaft 3 can be in driving connection with the portion of the screw body 10, which is closer to the middle upper portion of the screw 1, so that the driving positions of the screw 1 and the connecting shaft 3 can be set close to the center of gravity of the screw 1, thereby ensuring the stability of the screw 1 after installation, further preventing the screw 1 from shaking in the working process, and further reducing the friction between the screw 1 and a cup body due to shaking, and further reducing the abrasion of products. On the other hand through setting up installation cavity 1022, can also set up a boss on the diapire of cup to when installation screw 1, can stretch into installation cavity 1022 with the boss, with the realization to the location installation of screw 1, therefore can improve the installation rate and the installation convenience of screw 1.

Preferably, the height of the screw body 10 is H, and the depth of the installation cavity 1022 is H, wherein H is equal to or greater than 1/3H and equal to or less than 2/3H. This arrangement enables the connecting shaft 3 to extend into the middle of the screw 1, thereby ensuring the center of gravity of the screw 1 and further ensuring the stability of the screw 1 after installation.

In another embodiment (not shown in the figures), preferably, a mounting cavity 1022 with an open end is disposed at one end of the screw body 10, a transmission column is disposed on the bottom wall of the mounting cavity 1022, and the transmission hole 12 is disposed on the transmission column.

In these embodiments, a transmission post may also be disposed on the bottom wall of the mounting cavity 1022, and the transmission hole 12 is disposed on the transmission post, so that the driving of the screw rod 1 can be realized through the driving connection of the transmission post and the connecting shaft 3, and the arrangement is through disposing the transmission post, so that a hole-like structure is not directly disposed on the screw rod body 10, and the strength of the screw rod 1 can be improved.

In any of the above embodiments, preferably, the end of the driving stud away from the bottom wall of the mounting cavity 1022 is located in the mounting cavity 1022, or the end of the driving stud away from the bottom wall of the mounting cavity 1022 protrudes out of the mounting cavity 1022.

In these embodiments, the driving post may be set to be shorter than the other driving post so that the driving post can be hidden in the installation cavity 1022, and this setting can prevent the driving post from protruding out of the screw body 10, so that when the screw 1 is placed, the screw 1 can be directly vertically buckled on the desktop, and further the screw 1 can be prevented from rolling around the desktop. Simultaneously, also can be with the length of transmission post setting to make it stretch out from the diapire of cup, in order to be connected with connecting axle 3 outside the cup, this kind of structure can be assembled into a whole with cup, screw rod 1 etc. when dispatching from the factory, like this, when the user specifically uses, just need with food processing cup direct mount on base 7, then with the transmission shaft cover establish the connecting axle 3 on one end can, this kind of mounting means, only need one step can the mountable target in place, therefore can improve the installation convenience of product.

In any of the above embodiments, preferably, as shown in fig. 1 to 11, the screw further includes: the wear-resistant part 14 is arranged on the outer surface of the screw body 10, and a second spiral rib 142 is arranged on one surface, away from the wear-resistant part 14, of the wear-resistant part 14; wherein the wear-resistant part 14 is wrapped on the outer surface of the end of the screw body 10 close to the installation cavity 1022, or the wear-resistant part 14 is wrapped on the whole outer surface of the screw body 10.

In these embodiments, the wear-resistant part 14 can be arranged on the screw body 10, so that the screw 1 and the inner wall of the cup body of the food processing cup can be isolated from each other through the wear-resistant part 14, the friction between the screw 1 and the cup body can be reduced, the wear of the screw 1 can be reduced when the screw 1 rotates, and the problem that the screw 1 is easy to wear and damage can be solved. According to the structure, on one hand, the abrasion of the screw 1 in single use is reduced, so that after the product is used for a long time, the screw 1 cannot be seriously abraded, the performance of the product cannot be reduced due to the abrasion of the screw 1, and the product can still have good performance after being used for a long time. On the other hand, the abrasion of the screw 1 is reduced, so that particles falling off due to the abrasion of the screw 1 can be reduced, the processed food can be prevented from being polluted by the particles falling off due to the abrasion of the screw 1, the health of consumers can be prevented from being damaged, and the cleanness and the sanitation of the food can be ensured. In addition, can also protect the surface of screw rod 1 through setting up wearing parts 14 to can prevent that screw rod 1 from being dyed by the pigment of food itself at the course of the work, and then make screw rod 1 wash more easily promptly, can keep the clean degree of screw rod 1 after long-term the use again, and then can ensure the aesthetic property of screw rod 1 and cooking machine for a long time.

Specifically, the cup body can be used as a juice extracting cup of a vertical juice extractor or a crushing cup of a double-screw food processor, at the moment, the gap between the upper end of the screw 1 and the cup body is large, so that the upper end of the screw 1 is not easy to wear with the cup body, and the gap between the lower end of the screw 1 and the cup body is small, so that the lower end of the screw 1 is easy to wear with the cup body, therefore, the wear-resistant part 14 can be arranged only on the lower end of the screw 1, namely, the wear-resistant part 14 is arranged only on the part with serious wear of the screw 1, so that the coverage area of the wear-resistant part 14 can be reduced, the structure of a product can be simplified, and the cost of the product can be reduced. Of course, a layer of wear-resistant part 14 can be arranged on the outer surface of the whole screw 1, so that the screw 1 can be protected in all directions.

In any of the above embodiments, as shown in fig. 1 to 3, the wear-resistant part 14 is preferably a wear-resistant layer adapted to the outer surface of the screw body 10, so that the wear-resistant part 14 can be tightly attached to the outer surface of the screw body 10, and thus the original structure of the screw body 10 is not changed, and the screw body 10 can still normally process food.

In any of the above embodiments, as shown in fig. 1 to 3, preferably, the end of the screw body 10 away from the mounting cavity 1022 is provided with the first positioning structure.

In these embodiments, a first positioning structure can be disposed at the upper end of the screw body 10, and a second positioning structure can be disposed on the cup cover 4 of the food processing cup, so that the two ends of the screw 1 can be positioned by the connecting shaft 3 and the second positioning structure, and the screw 1 can be prevented from shaking in the rotating process, thereby improving the installation stability of the screw 1.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, the first positioning structure is a positioning groove 16 or a positioning projection.

In these embodiments, one end of the screw rod 1 can be drivingly connected to the connecting shaft 3, a positioning protrusion or positioning groove 16 is disposed on the end surface of the other end of the screw rod 1, and a positioning groove 16 or positioning protrusion is correspondingly disposed on the cup cover 4, so that the other end of the screw rod 1 can be positioned by the cooperation of the positioning protrusion and the positioning groove 16, so that the two ends of the screw rod 1 can be positioned at the same time, and the screw rod 1 can be prevented from being obliquely worn.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, the first positioning structure is a positioning slot 16, but the first positioning structure may also be a positioning protrusion (not shown in the embodiment).

Preferably, as shown in fig. 1 to 3 and 13, the first positioning structure is a positioning groove 16, and the second positioning structure is a positioning protrusion. Since it is more convenient to machine the positioning groove 16 directly on the screw 1, the difficulty of machining the screw 1 can be reduced.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, the screw 1 further includes: and the protective sleeve 19 is arranged in the positioning groove 16 or sleeved on the positioning bulge.

In these embodiments, a protective sleeve 19, such as wear-resistant silica gel, may be disposed on the first positioning structure, and this arrangement can form a buffer space at the positioning connection position of the cup cover 4 and the screw rod 1 by using the protective sleeve 19, so as to compensate for the installation error of the screw rod 1 during installation and positioning, and provide a buffer deformation space for the play of the screw rod 1 during operation. In addition, can also prevent screw rod 1 and bowl cover 4 direct contact through setting up wear-resisting silica gel, and then can reduce the wearing and tearing between screw rod 1 and the bowl cover 4 to ensure that screw rod 1 can not worn and torn badly. Specifically, when the first positioning structure is a positioning protrusion, the protective sleeve 19 may be directly sleeved on the positioning protrusion so as to protect the positioning protrusion, and when the positioning protrusion is a positioning groove 16, the protective sleeve 19 may be disposed around the sidewall and the bottom wall of the positioning groove 16 so as to protect the entire groove wall of the positioning groove 16.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, the screw body 10 includes: an inner core 102, wherein a mounting cavity 1022 is arranged at one end of the inner core 102, and the reinforcing member 18 is arranged on the bottom wall of the mounting cavity 1022; an outer core 104, one end of the outer core 104 is wrapped on the outer surface of one end of the inner core 102 far away from the installation cavity 1022, and the wear-resistant piece 14 is arranged on the outer surface of the other end of the inner core 102; the first spiral rib 1042 is disposed on the outer core 104, the third spiral rib 1024 is disposed on the outer surface of the inner core 102 where the wear-resistant member 14 is disposed, and the second spiral rib 142 covers the third spiral rib 1024.

In these embodiments, it is preferable that the screw body 10 is configured to include an inner core 102 and an outer core 104, and this configuration enables the inner core 102 to be injection molded first when the screw 1 is processed, and then the outer core 104 is injection molded outside the inner core 102 by insert injection molding, which can improve the surface quality of the screw body 10 compared to the manner in which the screw body 10 is integrally injection molded, thereby improving the overall performance of the screw body 10.

Preferably, as shown in fig. 1 to 3, the outer core 104 is only wrapped around a portion of the inner core 102 far from the installation cavity 1022, that is, the bottom of the inner core 102 is protruded out of the outer core 104, and in this case, the wear-resistant member 14 may be directly disposed on a portion of the outer surface of the inner core 102 protruded out of the outer core 104. Meanwhile, the first spiral rib 1042 may be disposed on the outer core 104, and the third spiral rib 1024 may be disposed on the inner core 102 at a position not covered by the outer core 104, and the second spiral rib 142 of the wear-resistant member 14 may be covered on the third spiral rib 1024, so that the wear-resistant member 14 may be better disposed on the inner core 102, and the connection strength between the wear-resistant member 14 and the inner core 102 may be improved.

Of course, in another embodiment (not shown), the outer core 104 may be wrapped around the entire outer surface of the inner core 102, and in this case, the wear resistant members 14 may be disposed on the entire outer core 104 or only on the lower portion of the outer core 104.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, a layer of the encapsulating inner shell 106 is disposed on the inner wall of the mounting cavity 1022 and the end face of the open end of the inner core 102, wherein the reinforcing member 18 is disposed between the encapsulating inner shell 106 and the inner core 102.

In these embodiments, by providing an encapsulating inner shell 106 on the inner surface of the outer core 104 and the end surface of the open end of the inner core 102, the quality of the inner surface of the screw body 10 can be ensured by encapsulating the inner shell 106. Therefore, the processing quality requirements of the core 102 can be reduced during a particular manufacturing process to reduce the cost of the product.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, the core 102 and the reinforcing member 18 are of a unitary structure, or the core 102 and the reinforcing member 18 are of a split structure.

In these embodiments, the inner core 102 and the reinforcing member 18 are preferably of an integral structure, because the integral structure has good mechanical properties, the connection strength between the inner core 102 and the reinforcing member 18 can be ensured, and in addition, the inner core 102 and the reinforcing member 18 can be integrally manufactured and mass-produced, so that the production efficiency of the product is improved, and the production and processing costs of the product are reduced. Of course, the inner core 102 and the reinforcement member 18 may be of a split structure, i.e., a detachable structure.

Wherein, preferably, the inner core 102 and the reinforcement 18 are integrally injection-molded, and this arrangement can make the connection strength between the inner core 102 and the reinforcement 18 better, and also can avoid forming a gap between the inner core 102 and the reinforcement 18, i.e. can realize seamless connection between the inner core 102 and the reinforcement 18, thereby being more beneficial to cleaning the product. Meanwhile, the processing mode of the integral injection molding is simple in processing and low in cost, so that the manufacturing and processing cost of the product can be reduced.

In any of the above embodiments, the inner core 102 and the outer core 104 are preferably a unitary structure. Because the mechanical property of integral type structure is good, therefore can ensure the joint strength between inner core 102 and outer core 104, in addition, still can make inner core 102 and outer core 104 an organic whole, batch production to improve the production efficiency of product, reduce the production and processing cost of product.

In any of the above embodiments, the inner core 102 and the inner package shell 106 are preferably a unitary structure. Because the mechanical property of the integrated structure is good, the connection strength between the inner core 102 and the packaging inner shell 106 can be ensured, and in addition, the inner core 102 and the packaging inner shell 106 can be integrally manufactured and produced in batch, so that the production efficiency of products is improved, and the production and processing cost of the products is reduced.

In any of the above embodiments, preferably the inner core 102 and/or the outer core 104 are made of plastic.

In such embodiments, the inner core 102 and/or the outer core 104 are preferably provided as plastic, as this can reduce the cost of the product. The inner core 102 and/or the outer core 104 may be provided with metal in order to increase the strength of the screw 1.

In any of the above embodiments, the wear member 14 is preferably of one-piece construction with the screw body 10.

In these embodiments, the wear-resistant part 14 and the screw body 10 are preferably of an integrated structure, because the integrated structure has good mechanical properties, the connection strength between the wear-resistant part 14 and the screw body 10 can be ensured, and in addition, the wear-resistant part 14 and the screw body 10 can be integrally manufactured and mass-produced, so that the production efficiency of products is improved, and the production and processing cost of the products is reduced. Of course, the wear-resistant part 14 and the screw body 10 can be in a split structure, i.e. a detachable structure.

Wherein, preferably, wearing parts 14 and screw body 10 integrative injection moulding, this kind of setting can make the joint strength between wearing parts 14 and the screw body 10 better, and also can avoid forming the gap between wearing parts 14 and the screw body 10, can realize the seamless connection between wearing parts 14 and the screw body 10 promptly, therefore more do benefit to the washing of product. Meanwhile, the processing mode of the integral injection molding is simple in processing and low in cost, so that the manufacturing and processing cost of the product can be reduced.

In any of the above embodiments, the screw body 10 is preferably made of plastic or metal.

In these embodiments, the screw body 10 may be made of metal or plastic, and the screw body made of metal can increase the strength of the screw 1 but has a high cost, while the screw body made of plastic can reduce the cost of the product but has a slightly lower strength.

In any of the above embodiments, the wear part 14 is preferably made of metal or glass or ceramic.

In these embodiments, the wear-resistant member 14 is preferably made of metal, glass, ceramic, etc. having good wear resistance, because metal, glass, and ceramic are relatively common and thus easily available, and at the same time, the metal, glass, and ceramic have good hardness and thus can ensure the wear resistance of the screw 1, wherein, further preferably, the wear-resistant layer is made of stainless steel, glass, ceramic, aluminum, or titanium alloy.

Wherein, the screw body 10 includes in proper order from the one end of keeping away from drive hole 12 to the one end that is close to drive hole 12: the device comprises a positioning section, a blanking section, a propelling section and a grinding section; wherein the drive holes 12 are provided in the propulsion section and the milling section. Specifically, a first positioning structure may be provided on the positioning section for positioning the screw 1 to prevent the screw 1 from shaking during operation, the discharging section may be used to cut the food dropped from the discharging opening into pieces and primarily crush the food, the pushing section may be used to compact and push the food to the grinding section, and the grinding section may be used to further crush the food.

As shown in fig. 12 and 13, an embodiment of the second aspect of the present invention provides a food processing cup for a food processing machine, the food processing machine including a base 7, a driving device provided in the base 7, the driving device including a first driving shaft 72, the food processing cup including: the cup comprises a first cup body 2, wherein one end of the first cup body 2 is open and hollow, and a mounting hole 22 is formed in the bottom wall of the first cup body 2; one end of the connecting shaft 3 is in driving connection with the first driving shaft 72, and the other end of the connecting shaft 3 extends into the first cup body 2 through the mounting hole 22; in the screw 1 provided by any embodiment of the first aspect, the screw 1 is installed in the first cup 2 and is connected with one end, extending into the first cup 2, of the connecting shaft 3 through the transmission hole 12; the cup cover 4 can be covered on the first cup body 2; the first driving shaft 72 and the connecting shaft 3 are of an integrated structure, or the first driving shaft 72 and the connecting shaft 3 are of a split structure.

According to the food processing cup provided by the embodiment of the invention, the screw 1 provided by any embodiment of the first aspect is provided, so that the food processing cup provided by the embodiment of the invention also has all the beneficial effects of the screw 1 provided by any embodiment of the first aspect. This is not to be taken as an exhaustive list. The first driving shaft 72 and the connecting shaft 3 may be an integral structure, or may be two separate shafts as shown in fig. 12 and 13, in other words, the first driving shaft 72 may be directly inserted into the first cup 2 to drive the screw rod 1 to rotate, or may be connected to the first driving shaft 72 to drive the screw rod 1 to rotate as shown in fig. 12 and 13.

In the above embodiments, preferably, as shown in fig. 12 and 13, the food processing cup further comprises: and the filter screen 5 is arranged in the first cup body 2 and is positioned between the side wall of the first cup body 2 and the screw rod 1.

In these embodiments, the food processor may be configured as a single-cup single-screw food processor, and at this time, a filter screen 5 may be further disposed in the first cup 2 of the food processing cup, so that the food processing cup can be used in the single-screw food processor 1, and the food processor of the single-screw food processor 1 can crush food materials by using the first cup 2 and the screw 1, and after crushing the food materials, juice and residue separation of the food can be achieved by the filter screen 5.

In the above embodiments, preferably, as shown in fig. 12 and 13, the food processing cup further comprises: and the sealing element 6 is positioned in the first cup body 2, is sleeved on the connecting shaft 3 and is used for sealing the mounting hole 22.

In these embodiments, a sealing member 6 may be disposed at an end surface of the mounting hole 22 or between the mounting hole 22 and the connecting shaft 3 to seal the mounting hole 22, and this arrangement enables the connecting shaft 3 to be connected with the mounting hole 22 in a sealing manner, so that the sealing performance of the food processing cup can be improved, and the leakage of the food juice of the first cup body 2 can be prevented.

Wherein, preferably, sealing member 6 is sealing silica gel because sealing silica gel's sealing performance is good to can ensure the leakproofness, and sealing silica gel is difficult for reacting with food juice, therefore can not pollute food juice, and in addition, sealing silica gel is more common, therefore easily purchases, thereby can reduce cost.

In the above embodiments, preferably, as shown in fig. 13, the cup lid 4 is provided with a second positioning structure, and the second positioning structure can be matched with the first positioning structure on the screw rod 1 to position one end of the screw rod 1.

In the above embodiments, preferably, as shown in fig. 13, a boss is provided on the bottom wall of the first cup body 2, and the mounting hole 22 is provided on the boss, and the boss can extend into the mounting cavity 1022 of the screw 1 to perform positioning mounting on the screw 1.

In the embodiments, the second positioning structure can be arranged on the cup cover 4, so that one end of the screw rod 1 can be positioned, the other end of the screw rod 1 can be in driving connection with the connecting shaft 3, and can also be positioned under the action of the connecting shaft 3, so that the two ends of the screw rod 1 can be positioned, and the screw rod 1 can be prevented from deflecting.

Wherein, preferably, the boss is formed by the bottom wall of the first cup body 2 sinking into the first cup body 2. This kind of setting makes boss and first cup 2 can form the integral type structure, therefore can improve the intensity between boss and the first cup 2. Simultaneously, this kind of setting also makes boss and first cup 2 can integrated into one piece, therefore can reduce the processing cost of product.

In the above embodiments (not shown in the figures), preferably, the food processing cup further comprises: the second cup body is arranged on the first cup body 2 and is communicated with the first cup body 2; the extruding device is arranged in the second cup body and is used for extruding the food materials entering the second cup body from the first cup body 2 so as to separate juice and residue of the food materials; the driving device further comprises a second driving shaft, and the second driving shaft is connected with the extrusion device and used for driving the extrusion device to rotate.

In these embodiments, a second cup and an extruding device can be further provided, so that the second cup and the extruding device can be used for extruding the food material, the juice and the residue of the food material can be separated, the food processor can be set as a double-screw 1 food processor, and the crushing and the extruding of the food material can be respectively carried out in the two cups. Wherein, specifically, this kind of food processing cup's theory of operation does: after the food material enters the first cup body 2, the screw 1 is driven by the first driving shaft 72 to be matched with the side wall of the first cup body 2 so as to crush the food material, the crushed food material enters the extrusion cup under the action of the screw 1, and the extrusion device extrudes the food material under the drive of the second driving shaft so as to separate juice and residue of the food material. This embodiment is with the crushing process and the crowded sediment process of edible material separately go on, and in crushing process, owing to need not to squeeze the juice and arrange the sediment, therefore, need not set up parts such as filter screen 5 and rotatory brush in the first cup 2, thereby make edible material in the first cup 2 can be smashed under the combined action of first cup 2 and screw 1, simultaneously can set up extrusion device roughly level at the crowded sediment in-process, can set the crowded sediment system into horizontal, thereby can be very convenient for with the juice sediment separation of food, the juice rate of food processor can be ensured on the one hand in this kind of setting, on the other hand can avoid using parts such as filter screen 5, rotatory brush, thereby make food processor's simple structure and easily installation, simultaneously owing to cancelled filter screen 5, therefore can reduce user's washing difficulty, and then can promote user experience.

Preferably, the driving device is a motor, and the first driving shaft 72 and/or the second driving shaft are/is a motor shaft.

In these embodiments, it is preferable to drive the screw 1 and/or the extruding means to rotate by a motor, because the motor is a relatively common driving means in the food processor, and thus is easy to purchase, thereby reducing the cost of the product.

As shown in fig. 12 and 13, the embodiment of the third aspect of the present invention provides a food processor including a base 7, a driving device being provided in the base 7; and the screw 1 provided in any embodiment of the first aspect, the screw 1 being connected to a driving device, or the food processing cup provided in any embodiment of the second aspect, the food processing cup being mountable on the base 7.

According to the food processor provided by the embodiment of the present invention, the screw 1 provided by any embodiment of the first aspect or the food processing cup provided by any embodiment of the second aspect is provided, so that the food processor provided by the embodiment of the present invention has all the advantages of the screw 1 provided by any embodiment of the first aspect, or has all the advantages of the food processing cup provided by any embodiment of the second aspect, which is not listed here.

In any of the above embodiments, the food processor is preferably a juicer or a juicer, but the food processor may also be other structures besides a juicer or a juicer, such as a juicer, a wall breaking machine, and the like.

In the description of the present specification, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw for a food processor, the food processor including a connecting shaft, the screw comprising:

the cross-sectional area of the screw rod body is increased from one end of the screw rod body, which is far away from the transmission hole, to one end of the screw rod body, which is close to the transmission hole;

the reinforcing piece is arranged in one end, provided with the transmission hole, of the screw body, a through hole is formed in the reinforcing piece, the transmission hole penetrates through the reinforcing piece through the through hole and extends into the screw body, and a rotation stopping structure is arranged on the reinforcing piece and can be matched with the screw body to prevent the reinforcing piece from rotating relative to the screw body in the screw body;

the screw rod body can be in driving connection with the connecting shaft through the transmission hole so as to rotate under the driving of the connecting shaft;

the reinforcing piece is provided with a positioning hole.

2. The screw of claim 1,

the rotation stopping structure is an elliptical surface arranged on the side wall surface of the reinforcing part; and/or

The rotation stopping structure is a first rotation stopping protrusion and/or a rotation stopping notch arranged on the side wall surface of the reinforcing piece; and/or

The rotation stopping structure is a second rotation stopping protrusion and/or a rotation stopping groove which are arranged on the end face of the reinforcing piece.

3. The screw of claim 1,

the sum of the matching areas of the rotation stopping structure of the reinforcing part and the screw body is more than or equal to 5cm²(ii) a And/or

A preset gap S is arranged between the transmission hole and the connecting shaft, wherein S is more than or equal to 0.02mm and less than or equal to 0.2mm, or S is 0.1 mm; and/or

The height L of the via hole in the axial direction of the screw rod body is greater than or equal to 2 mm.

4. The screw of claim 1,

the shape and the size of the through hole are consistent with those of the transmission hole.

5. The screw of claim 4,

when the reinforcing part is provided with the positioning holes, the number of the positioning holes is multiple, and the positioning holes are symmetrically arranged on the reinforcing part.

6. The screw of claim 1,

the reinforcing piece is a metal piece; and/or

The reinforcing piece and the screw rod body are of an integrated structure or a split structure.

7. The screw according to any one of claims 1 to 6,

one of the screw rod body is provided with an installation cavity with an opening at one end, and the transmission hole is formed in the bottom wall of the installation cavity.

8. The screw of claim 7, further comprising:

the wear-resistant part is arranged on the outer surface of the screw rod body, and a second spiral rib is arranged on one surface, far away from the screw rod body, of the wear-resistant part;

the wear-resistant part is wrapped on the outer surface of one end, close to the mounting cavity, of the screw body, or the wear-resistant part is wrapped on the whole outer surface of the screw body.

9. The screw of claim 7,

a first positioning structure is arranged on the end portion of one end, far away from the installation cavity, of the screw rod body.

10. The screw of claim 9,

the first positioning structure is a positioning groove or a positioning bulge.

11. The screw of claim 10, further comprising:

and the protective sleeve is arranged in the positioning groove or sleeved on the positioning protrusion.

12. The screw of claim 8, wherein the screw body comprises:

the inner core is provided with the mounting cavity at one end, and the reinforcing piece is arranged on the bottom wall of the mounting cavity;

one end of the outer core is wrapped on the outer surface of one end, far away from the installation cavity, of the inner core, and the wear-resistant piece is arranged on the outer surface of the other end of the inner core;

the first spiral rib is arranged on the outer core, the inner core is provided with a third spiral rib on the outer surface of the wear-resistant part, and the second spiral rib covers the third spiral rib.

13. The screw of claim 12,

and a layer of packaging inner shell is arranged on the inner wall of the mounting cavity and the end face of the opening end of the inner core, wherein the reinforcing piece is arranged between the packaging inner shell and the inner core.

14. The screw of claim 13,

the inner core and the reinforcing piece are of an integrated structure, or the inner core and the reinforcing piece are of a split structure; and/or

The inner core and the outer core are of an integrated structure; and/or

The inner core and the packaging inner shell are of an integrated structure; and/or

The inner core and/or the outer core are made of plastic.

15. The screw of claim 8,

the wear-resistant part and the screw rod body are of an integrated structure; and/or

The screw rod body is made of plastic or metal; and/or

The wear resistant piece is made of metal or glass or ceramic.

16. A food processing cup for a food processing machine, the food processing machine comprising a base, a drive arrangement provided in the base, the drive arrangement comprising a first drive shaft, the food processing cup comprising:

the cup comprises a first cup body, a second cup body and a cover, wherein one end of the first cup body is open and hollow, and a mounting hole is formed in the bottom wall of the first cup body;

one end of the connecting shaft is in driving connection with the first driving shaft, and the other end of the connecting shaft extends into the first cup body through the mounting hole;

the screw rod of any one of claims 1 to 15, which is installed in the first cup body and is connected with one end, extending into the first cup body, of the connecting shaft through the transmission hole;

the cup cover can be covered on the first cup body;

the first driving shaft and the connecting shaft are of an integrated structure, or the first driving shaft and the connecting shaft are of a split structure.

17. The food processing cup of claim 16, further comprising:

the filter screen is arranged in the first cup body and is positioned between the side wall of the first cup body and the screw rod; and/or

And the sealing element is positioned in the first cup body, sleeved on the connecting shaft and used for sealing the mounting hole.

18. The food processing cup of claim 16,

and a second positioning structure is arranged on the cup cover and can be matched with the first positioning structure on the screw rod so as to position one end of the screw rod.

19. The food processing cup of claim 16, further comprising:

the second cup body is arranged on the first cup body and is communicated with the first cup body;

the squeezing device is arranged in the second cup body and is used for squeezing the food materials entering the second cup body from the first cup body so as to separate juice and residue of the food materials;

the driving device further comprises a second driving shaft, and the second driving shaft is connected with the extrusion device and used for driving the extrusion device to rotate.

20. A food processor, comprising:

the device comprises a base, wherein a driving device is arranged in the base; and

a screw as claimed in any one of claims 1 to 15 connected to the drive means, or a food processing cup as claimed in any one of claims 16 to 19 mountable on the base.