CN209899056U - Filter screen subassembly and have its stock machine - Google Patents

Abstract

The utility model relates to the technical field of household appliances, concretely relates to filter screen subassembly and have its stock machine. The utility model provides a filter screen subassembly, include: the first cylinder grate is provided with a plurality of first juice filtering through holes on the circumferential side wall, and a first grate is formed between every two adjacent first juice filtering through holes; the second cylinder grate is sleeved outside the first cylinder grate, a plurality of second juice filtering through holes are formed in the circumferential side wall of the second cylinder grate, and a second grate is formed between every two adjacent second juice filtering through holes; the gear structure comprises at least two gears and a gear selection part, the gears are arranged on one of the first cylinder grid and the second cylinder grid, the gear selection part is arranged on the other one of the first cylinder grid and the second cylinder grid, and when the gear selection part is combined with gears of different stages, the first juice filtering through holes and the second juice filtering through holes are completely staggered to form no juice filtering gaps or are partially staggered to form juice filtering gaps; and a positioning structure. Through setting up the gear structure, the user can realize different functions according to actual need, has reduced spare part, the cost is reduced.

Description

Filter screen subassembly and have its stock machine

Technical Field

The utility model relates to the technical field of household appliances, concretely relates to filter screen subassembly and have its stock machine.

Background

Along with the improvement of the living standard of people, in the process of pursuing high-quality life, a kitchen appliance, namely a juice extractor, is produced, and the juice extractor replaces the traditional centrifugal juice extractor with the advantages of fully retaining the nutrition of juice and separating juice residues.

The juice extracting system of the conventional juice extractor comprises a screw, a filter screen, a rotary brush holder, a juice collecting cup, an upper cover and the like, wherein the filter screen is an important component of the juice extracting system of the juice extractor and is formed by a metal filter screen with meshes formed in the side wall through secondary injection molding, and the juice extracting system is mainly used for blocking residues and separating juice in fruit and vegetable food materials, so that the juice and the residue of the fruit and vegetable food materials are separated. Because the mesh of metal filters is the fixed through-hole of diameter, at the in-process of squeezing the juice, a large amount of edible material residues are extruded in the mesh, make the user hardly the sanitization, and then lead to remaining fruit juice pomace to breed the bacterium, pollute the fruit juice of squeezing out when next use.

In order to facilitate the washing filter screen, make the difficult jam of filter screen, disclose a filter screen subassembly among the prior art, including first annular net section of thick bamboo and second annular net section of thick bamboo, the non-net gape district that utilizes the second annular net section of thick bamboo comes the first net gape of first annular net section of thick bamboo to carry out the part and shelter from, thereby can diminish the opening of first net gape, with the trompil requirement when satisfying the crowded sediment of product, therefore can all set up first net gape and second net gape great simultaneously, so that the user washs first annular net section of thick bamboo and second annular net section of thick bamboo.

But along with the increase of user's demand, and in order to guarantee the effect of squeezing juice of stereoplasm fruit vegetables, soft fruit vegetables edible material, need be equipped with two parts of "coarse mesh filter screen (soft fruit vegetables), pore filter screen (stereoplasm fruit vegetables)" of different apertures simultaneously, some products are equipped with the filter screen that does not have the mesh, realize the ice cream function, lead to a model to need to be equipped with coarse mesh filter screen, pore filter screen, ice cream net simultaneously, cause the material cost high, and during the use, assemble by the user by oneself, cause the numerous lock of user operation because of spare part is many.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the filter screen part among the prior art defect many, with high costs to a filter screen subassembly and stock machine that has it that the part is few and the cost is lower is provided.

A screen assembly, comprising:

the first cylinder grate is provided with a plurality of first juice filtering through holes on the circumferential side wall, and a first grate is formed between every two adjacent first juice filtering through holes;

the second cylinder grate is sleeved outside the first cylinder grate, a plurality of second juice filtering through holes are formed in the circumferential side wall of the second cylinder grate, and a second grate is formed between every two adjacent second juice filtering through holes;

the gear structure comprises at least two gears and a gear selection part, the gears are arranged on one of the first cylinder grid and the second cylinder grid, the gear selection part is arranged on the other one of the first cylinder grid and the second cylinder grid, and when the gear selection part is combined with the gears of different stages, the first juice filtering through holes and the second juice filtering through holes are completely staggered to form no juice filtering gaps or are partially staggered to form juice filtering gaps;

and the positioning structure is used for performing anti-rotation positioning between the first cylindrical grid and the second cylindrical grid on the selected gear.

The gear selecting part is arranged on the first cylinder grid, and the gears are arranged on the second cylinder grid.

The gear selecting part is a gear lever, and the gear is a gear groove.

The gear stage includes:

the first gear is combined with the gear selecting part, and the first juice filtering through holes and the second juice filtering through holes are completely staggered to form no juice filtering gap;

the second gear is combined with the gear selecting part, and the first filtered juice through hole and the second filtered juice through hole are partially staggered to form a first filtered juice gap;

and a third gear which is combined with the gear selecting part, wherein the first juice filtering through hole and the second juice filtering through hole are partially staggered to form a second juice filtering gap, and the width of the second juice filtering gap is greater than that of the first juice filtering gap.

The second gear is arranged between the first gear and the third gear.

And when the axis where the second gear is located is taken as a central line, the angle A of an included angle formed between the first gear and the second gear is not equal to the angle B of an included angle formed between the third gear and the second gear.

The width of the first juice filtering through hole is smaller than that of the second fence, and the width of the second juice filtering through hole is smaller than that of the first fence.

The width of the first filtered juice through hole and the width of the second filtered juice through hole are gradually reduced from top to bottom.

And a guiding structure for guiding the food materials to the bottom of the first cylinder grate is further arranged on the inner peripheral wall of the first cylinder grate.

The guide structure comprises a plurality of guide rails which are arranged on the inner peripheral wall of the first cylindrical grid at intervals.

The positioning structure comprises a plurality of first positioning bulges or grooves arranged on the peripheral surface of the lower end of the first cylinder grate;

and a plurality of second positioning grooves or protrusions arranged on the inner circumferential surface of the lower end of the second cylinder grid, wherein the first positioning protrusions or grooves are combined with the second positioning grooves or protrusions in a manner of being inserted from top to bottom and are used for relatively positioning the first cylinder grid and the second cylinder grid.

The upper end of the first cylinder grid is provided with a plurality of positioning lugs formed by outward extension of the peripheral surface of the first cylinder grid, the juice collecting cup comprises a plurality of third positioning bulges or grooves arranged at the bottom and a fourth positioning groove arranged at the upper end, the lower end of the first cylinder grid is combined with the third positioning bulges or grooves in a manner of inserting the first positioning bulges or grooves from top to bottom, the upper end of the first cylinder grid is combined with the fourth positioning groove in a manner of inserting the positioning lugs from top to bottom, and the first cylinder grid is fixed in the juice collecting cup.

The diameters of the first cylinder grid and the second cylinder grid are gradually reduced from top to bottom.

A juice machine comprises a juice collecting cup and the filter screen assembly arranged in the juice collecting cup.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a pair of filter screen subassembly, include: the first cylinder grate is provided with a plurality of first juice filtering through holes on the circumferential side wall, and a first grate is formed between every two adjacent first juice filtering through holes; the second cylinder grate is sleeved outside the first cylinder grate, a plurality of second juice filtering through holes are formed in the circumferential side wall of the second cylinder grate, and a second grate is formed between every two adjacent second juice filtering through holes; the gear structure comprises at least two gears and a gear selection part, the gears are arranged on one of the first cylinder grid and the second cylinder grid, the gear selection part is arranged on the other one of the first cylinder grid and the second cylinder grid, and when the gear selection part is combined with the gears of different stages, the first juice filtering through holes and the second juice filtering through holes are completely staggered to form no juice filtering gaps or are partially staggered to form juice filtering gaps; and the positioning structure is used for performing anti-rotation positioning between the first cylindrical grid and the second cylindrical grid on the selected gear. Through set up the gear structure on first section of thick bamboo bars and second section of thick bamboo bars, including at least two-stage gear and select a grade portion, make the user can combine with the gear of different stages according to actual need with selecting a grade portion, when first straining juice through-hole staggers completely with the second straining juice through-hole and does not form the straining juice clearance, can realize the ice cream function, when first straining juice through-hole staggers with the second straining juice through-hole part and forms the straining juice clearance, can realize the function of juice sediment separation, through setting up location structure, make when different gears, the rotation-proof location of first section of thick bamboo bars and second section of thick bamboo bars, filter screen subassembly can normal use has been guaranteed, the user can realize different functions only through the gear structure that sets up on first section of thick bamboo bars and the second section of thick bamboo bars, the structure is simplified, the spare part is reduced, the cost is reduced, and make user's equipment more convenient, user's experience has been promoted.

2. The utility model provides a pair of filter screen subassembly, the gear includes: the first gear is combined with the gear selecting part, and the first juice filtering through holes and the second juice filtering through holes are completely staggered to form no juice filtering gap; the second gear is combined with the gear selecting part, and the first filtered juice through hole and the second filtered juice through hole are partially staggered to form a first filtered juice gap; and a third gear which is combined with the gear selecting part, wherein the first juice filtering through hole and the second juice filtering through hole are partially staggered to form a second juice filtering gap, and the width of the second juice filtering gap is greater than that of the first juice filtering gap. Through setting up the gear structure into including first gear, second gear and third gear, the user can assemble the combination form of first section of thick bamboo bars and second section of thick bamboo bars according to actual need, stagger completely when first straining juice through-hole and second straining juice through-hole and can realize the ice cream function when not forming the straining juice clearance, form first straining juice clearance and second straining juice clearance, and the width in second straining juice clearance is greater than the width in first straining juice clearance, make the straining juice clearance that the user can further select needs as required, with the fruit vegetables edible material of adaptation difference, and then guarantee the juicing effect of different fruit vegetables edible materials.

3. The utility model provides a pair of filter screen subassembly, with when the axis at second gear place was the central line, first gear with the angle A of the contained angle that forms between the second gear with the third gear with the angle B inequality of the contained angle that forms between the second gear. Through establishing a gear into the central line, the difference of two other gears rather than the contained angle setting realizes different filtered juice clearances for the structure of filter screen subassembly is simpler.

4. The utility model provides a pair of filter screen subassembly, the width of first straining juice through-hole is less than the width of second fence, the width of second straining juice through-hole is less than the width of first fence. The width of the first juice filtering through hole is set to be smaller than that of the second fence, and the width of the second juice filtering through hole is smaller than that of the first fence, so that when a user adjusts the gear selecting part to match with different gears, the fence of one of the two fences can be ensured to shield the juice filtering through hole of the other fence to a certain degree, and different functions can be ensured to be realized.

5. The utility model provides a pair of filter screen subassembly, still be equipped with on the interior all peripheral wall of first section of thick bamboo bars with eat the material to the guide structure of the bottom guide of first section of thick bamboo bars. Through setting up guide structure for eat better to the bottom guide, guaranteed the make full use of eating the material.

6. The utility model provides a filter screen component, the positioning structure comprises a plurality of first positioning bulges or grooves arranged on the outer peripheral surface of the lower end of the first cylinder grid; and a plurality of second positioning grooves or protrusions arranged on the inner circumferential surface of the lower end of the second cylinder grid, wherein the first positioning protrusions or grooves are combined with the second positioning grooves or protrusions in a manner of being inserted from top to bottom and are used for relatively positioning the first cylinder grid and the second cylinder grid. Through setting up location structure into recess and protruding complex mode for the locate mode is simpler, and convenient the dismantlement, makes the user more convenient when adjusting the cooperation position of first section of thick bamboo bars and second section of thick bamboo bars according to actual need.

7. The utility model provides a pair of filter screen subassembly, first section of thick bamboo bars with the diameter of a second section of thick bamboo bars reduces from the top to the bottom gradually. Through with first section of thick bamboo bars with the diameter of second section of thick bamboo bars reduces from the top to the bottom gradually for the diameter of section of thick bamboo bars better with from the top down eat the material size looks adaptation, and then make whole filter screen assembly's structure compacter, the volume is littleer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of a first cylinder grid of the screen assembly of the present invention;

fig. 2 is a perspective view of a second cylinder grid of the screen assembly of the present invention;

FIG. 3 is a top view of a second cylinder grid of the screen assembly of the present invention;

FIG. 4 is a side view of a second cylinder grill of the screen assembly of the present invention;

FIG. 5 is a side view of a first cylinder grid of the screen assembly of the present invention;

fig. 6 is a schematic view of the first cylinder grid and the second cylinder grid of the filter screen assembly of the present invention in three states;

fig. 7 is a sectional view of the juice extracting system of the juice extractor of the present invention;

fig. 8 is a sectional view of the juice collecting cup of the juice machine of the present invention;

fig. 9 is a perspective view of the screw of the juice machine of the present invention;

fig. 10 is a perspective view of the main body of the juice machine of the present invention.

Description of reference numerals:

1-a first cylinder grid; 2-a second cylinder grid; 3-a first juice through hole; 4-a first fence; 5-positioning lugs; 6-a first positioning projection; 7-a guide rail; 8-second juice through holes; 9-a second fence; 10-first gear; 11-second gear; 12-third gear; 13-a second positioning groove; 14-juice collecting cup; 15-a fourth positioning groove; 16-a third positioning groove; 17-slag falling hole; 18-a slag outlet; 19-juice outlet; 20-a screw; 21-screw spiral; 22-shaft hole; 23-upper cover; 24-a drive shaft; 25-a body; 26-third state; 27-a first state; 28-a second state; 29-a gear selection part; 30-a first juice-filtering gap; 31-second juice-filtering gap; 32-feed inlet.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-6, the present embodiment provides a screen assembly, including: the device comprises a first cylinder grid 1, a second cylinder grid 2, a gear structure and a positioning structure.

The device comprises a first cylinder grid 1, wherein a plurality of first filtered juice through holes 3 are formed in the circumferential side wall of the first cylinder grid 1, and a first fence 4 is formed between every two adjacent first filtered juice through holes 3; the second cylinder grid 2 is sleeved outside the first cylinder grid 1, a plurality of second juice filtering through holes 8 are formed in the circumferential side wall of the second cylinder grid 2, and a second grid 9 is formed between every two adjacent second juice filtering through holes 8; the gear structure comprises at least two gears and a gear selection part 29, the gears are arranged on one of the first cylinder grid 1 and the second cylinder grid 2, the gear selection part 29 is arranged on the other one of the first cylinder grid and the second cylinder grid, and when the gear selection part 29 is combined with gears of different stages, the first juice filtering through holes 3 and the second juice filtering through holes 8 are completely staggered to form no juice filtering gaps or are partially staggered to form juice filtering gaps; and the positioning structure is used for preventing rotation and positioning between the first cylindrical grid 1 and the second cylindrical grid 2 which are positioned at the selected gear.

By arranging the gear structures on the first cylinder grid 1 and the second cylinder grid 2, the gear structure comprises at least two stages of gears and a gear selection part 29, so that the user can combine the gear selection part 29 with gears of different stages according to actual requirements, when the first filtered juice through hole 3 and the second filtered juice through hole 8 are completely staggered without forming filtered juice gaps, can realize the function of ice cream, when the first juice through hole 3 and the second juice through hole 8 are partially staggered to form a juice filtering gap, the function of juice sediment separation can be realized, through setting up location structure, make when different gears, the location of preventing changeing of first section of thick bamboo bars 1 and second section of thick bamboo bars 2 has guaranteed that the filter screen subassembly can normal use, and the user only can realize different functions through the gear structure that sets up on first section of thick bamboo bars 1 and the second section of thick bamboo bars 2, has simplified the structure, has reduced spare part, and the cost is reduced, and let the user equipment more convenient, has promoted user's experience.

Specifically, the plurality of first filtered juice through holes 3 in the present embodiment are uniformly arranged on the circumferential side wall of the first cylinder grid 1, and the plurality of second filtered juice through holes 8 are uniformly arranged on the circumferential side wall of the second cylinder grid 2. As an alternative embodiment, the first filtrate holes 3 may be unevenly formed in the circumferential side wall of the first cylinder grid 1, and the second filtrate holes 8 may be unevenly formed in the circumferential side wall of the second cylinder grid 2.

Specifically, the shift selector 29 in the present embodiment is provided on the first cylinder grill 1, and the shift is provided on the second cylinder grill 2. As a switchable embodiment, the selector 29 may be provided on the second cylinder 2 and the shift position may be provided on the first cylinder 1.

Further, the gear selecting portion 29 in the present embodiment is a gear lever, and the gear is a gear groove. As a switchable embodiment, the gear selection portion 29 may be a shift gate, and the shift position may be a shift lever.

The gears in this embodiment include three stages: a first gear 10, which is combined with the gear selecting part 29, the first filtered juice through hole 3 and the second filtered juice through hole 8 are completely staggered without forming a filtered juice gap; a second gear 11, which is combined with the gear selecting part 29, wherein the first filtered juice through hole 3 and the second filtered juice through hole 8 are partially staggered to form a first filtered juice gap 30; and a third gear 12, which is combined with the gear selecting part 29, wherein the first filtered juice through hole 3 and the second filtered juice through hole 8 are partially staggered to form a second filtered juice gap 31, and the width of the second filtered juice gap 31 is larger than that of the first filtered juice gap 30. Through setting up the gear structure into including first gear 10, second gear 11 and third gear 12, the user can assemble the combination form of first section of thick bamboo bars 1 and second section of thick bamboo bars 2 according to actual need, can realize the ice cream function when staggering completely and not forming the juice filtering clearance when first juice through-hole 3 and second juice through-hole 8, form first juice filtering clearance 30 and second juice filtering clearance 31, and the width in second juice filtering clearance 31 is greater than the width in first juice filtering clearance 30, make the user can further adjust the juice filtering clearance of selection needs as required, with the fruit vegetables edible material of adaptation difference, and then guarantee the juicing effect of different fruit vegetables edible material.

Specifically, the second gear 11 in the present embodiment is provided between the first gear 10 and the third gear 12. When the axis of the second gear 11 is taken as the center line, the angle a of the included angle formed between the first gear 10 and the second gear 11 is not equal to the angle B of the included angle formed between the third gear 12 and the second gear 11. Through establishing a gear into the central line, the difference of two other gears rather than the contained angle setting realizes different filtered juice clearances for the structure of filter screen subassembly is simpler.

The width of the first juice through holes 3 in the embodiment is smaller than that of the second fence 9, and the width of the second juice through holes 8 is smaller than that of the first fence 4. The width of the first juice filtering through hole 3 is set to be smaller than that of the second fence 9, and the width of the second juice filtering through hole 8 is smaller than that of the first fence 4, so that when the gear selecting part 29 is adjusted by a user to be matched with different gears, the fence of one of the two fences can be ensured to shield the juice filtering through hole of the other fence to a certain extent, and different functions can be ensured to be realized.

In order to adapt to the size of the food material from top to bottom, the width of the first and second juice through holes 3, 8 in this embodiment is gradually reduced from top to bottom. As an alternative embodiment, the width of the first filtered juice through hole 3 and the second filtered juice through hole 8 may be kept constant from top to bottom.

The inner peripheral wall of the first cylindrical grid 1 in this embodiment is further provided with a guiding structure for guiding the food material to the bottom of the first cylindrical grid 1. Through setting up guide structure for eat better to the bottom guide, guaranteed the make full use of eating the material. Specifically, the guiding structure in the present embodiment includes a plurality of guide rails 7 disposed on the inner peripheral wall of the first grill 1 at intervals.

The positioning structure in this embodiment includes a plurality of first positioning protrusions 6 or grooves provided on the outer peripheral surface of the lower end of the first grill 1; and a plurality of second positioning grooves 13 or bulges arranged on the inner peripheral surface of the lower end of the second cylinder grid 2, wherein the first positioning bulges 6 or the grooves are combined with the second positioning grooves 13 or the bulges in an inserting mode from top to bottom and are used for relatively positioning the first cylinder grid 1 and the second cylinder grid 2. Through setting up location structure into recess and protruding complex mode for the locate mode is simpler, and convenient the dismantlement, makes the user more convenient when adjusting the cooperation position of first section of thick bamboo bars 1 and second section of thick bamboo bars 2 according to actual need. Specifically, in the present embodiment, a plurality of first positioning projections 6 are provided on the outer peripheral surface of the lower end of the first tubular fence 1, and a plurality of second positioning grooves 13 are provided on the inner peripheral surface of the lower end of the second tubular fence 2. As an alternative embodiment, a plurality of first positioning grooves may be provided on the outer circumferential surface of the lower end of the first grill 1, and a plurality of second positioning projections may be provided on the inner circumferential surface of the lower end of the second grill 2.

The upper end of the first cylinder grid 1 in this embodiment is provided with a plurality of positioning lugs 5 formed by outward extension of the peripheral surface of the first cylinder grid 1, the juice collecting cup 14 comprises a plurality of third positioning bulges or grooves arranged at the bottom and a fourth positioning groove 15 at the upper end, the lower end of the first cylinder grid 1 is combined with the third positioning bulges or grooves in a manner of inserting from top to bottom through the first positioning bulges 6 or grooves, the upper end is combined with the fourth positioning groove 15 in a manner of inserting from top to bottom through the positioning lugs 5, and the first cylinder grid 1 is fixed in the juice collecting cup 14. Specifically, the first cylindrical grid 1 in this embodiment has a plurality of first positioning protrusions 6 on the outer peripheral surface of the lower end thereof, and the juice collecting cup 14 includes a plurality of third positioning grooves 16 on the bottom thereof. As an alternative embodiment, the outer peripheral surface of the lower end of the first cylinder 1 may be provided with a plurality of first positioning grooves, and the juice collecting cup 14 may include a plurality of third positioning protrusions provided on the bottom.

The diameters of the first and second cylindrical grates 1 and 2 in this embodiment are gradually reduced from the top to the bottom. Through the diameter with first section of thick bamboo bars 1 and second section of thick bamboo bars 2 from the top to the bottom reduces gradually for the diameter of section of thick bamboo bars is better with the size looks adaptation of edible material from the top down, and then makes the structure of whole filter screen subassembly compacter, and the volume is littleer. As a switchable embodiment, the diameters of the first and second grids 1, 2 may be constant from top to bottom.

As shown in fig. 6, in actual use of the filter screen assembly in this embodiment, a user can select the gear selection portion 29 on the first cylinder grid 1 to be matched with any one of the first gear 10, the second gear 11, or the third gear 12 on the second cylinder grid 2 according to the type of food material, so as to determine three states when the first cylinder grid 1 is matched with the second cylinder grid 2: when a user selects food materials to make ice cream, the first gear 10 can be selected to be matched with the gear selection part 29, the juice filtering through holes are completely shielded by the fences on the first cylinder fence 1 and the second cylinder fence 2 at the moment, so that no juice filtering gap exists between the two cylinder fences, and the first state 27 (namely the function of 'ice cream') is realized by the matching of the first cylinder fence 1 and the second cylinder fence 2 at the moment; when the food material selected by the user is soft fruits and vegetables, in order to separate juice of the fruits and vegetables, the user can select the third gear 12 to be matched with the gear selection part 29, the first juice filtering through holes 3 and the second juice filtering through holes 8 are partially staggered at the moment to form second juice filtering gaps 31, the second juice filtering gaps 31 are large in width, the requirements of the soft fruits and vegetables can be met, and the first cylinder grid 1 and the second cylinder grid 2 are matched to realize a second state 28 (namely a 'coarse hole' function); when the edible material that the user chose is the stereoplasm fruit vegetables, in order to appear the juice of fruit vegetables, the user can select first gear 10 and select the cooperation of shelves portion 29, first straining juice through-hole 3 and second straining juice through-hole 8 part at this moment stagger, form first straining juice clearance 30, the width in first straining juice clearance 30 is less than the width in second straining juice clearance 31, can satisfy the demand of stereoplasm fruit vegetables, what the cooperation of first section of thick bamboo bars 1 and second section of thick bamboo bars 2 realized at this moment is third state 26 (being "pore" function).

As shown in fig. 7-10, the present embodiment further provides a juice extractor, which includes a juice collecting cup 14, and further includes the above-mentioned strainer assembly disposed in the juice collecting cup 14.

Specifically, the juice extractor in this embodiment includes a main body 25 and a juice extracting system, the main body 25 includes a driving shaft 24 providing a rotation driving force, the driving shaft 24 cooperates with a shaft hole 22 of the screw 20 to drive the screw 20 to rotate, the juice extracting system includes a juice collecting cup 14 mounted on the main body 25, a top end of the juice collecting cup 14 is opened, a juice outlet 19 and a residue outlet 18 are provided at the bottom of the juice collecting cup 14, the bottom of the juice collecting cup 14 is provided with a residue dropping hole 17, the residue dropping hole 17 is communicated with the residue outlet 18, the juice outlet 19 is communicated with the outside of the first cylinder grid 1, and the residue dropping hole 17 is communicated with the inside of the second cylinder grid 2.

The juice squeezing system in the embodiment also comprises an upper cover 23 and a screw rod 20, wherein the upper cover 23 is arranged at the top end of the opening of the juice collecting cup 14 and covers the opening, and one side of the axis of the upper cover 23 is provided with a feeding hole 32; the screw 20 is arranged in the first cylinder grid 1, the screw 20 comprises a plurality of screw spirals 21 arranged on the screw 20 and a shaft hole 22 arranged in the screw spirals 21, the width of the guide rail 7 on the first cylinder grid 1 is limited by the screw spirals 21 of the feeding screw 20 rotating in the first cylinder grid 1, and after the screw 20 is assembled in place, the surface of the guide rail 7 is in clearance fit with the screw spirals 21.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (14)

1. A screen assembly, comprising:

the device comprises a first cylinder grid (1), wherein a plurality of first juice filtering through holes (3) are formed in the circumferential side wall of the first cylinder grid (1), and a first grid (4) is formed between the adjacent first juice filtering through holes (3);

the second cylinder grid (2) is sleeved outside the first cylinder grid (1), a plurality of second juice filtering through holes (8) are formed in the circumferential side wall of the second cylinder grid (2), and a second grid (9) is formed between every two adjacent second juice filtering through holes (8);

the gear structure comprises at least two gears and a gear selection part (29), the gears are arranged on one of the first cylinder grid (1) and the second cylinder grid (2), the gear selection part (29) is arranged on the other one of the first cylinder grid and the second cylinder grid, and when the gear selection part (29) is combined with the gears of different stages, the first juice filtering through holes (3) and the second juice filtering through holes (8) are completely staggered to form no juice filtering gaps or partially staggered to form juice filtering gaps;

and the positioning structure is used for preventing rotation and positioning between the first cylindrical grid (1) and the second cylindrical grid (2) on the selected gear.

2. The screen assembly of claim 1, wherein the selector (29) is provided on the first grill (1) and the indexing is provided on the second grill (2).

3. The screen assembly of claim 1, wherein the selector (29) is a lever and the indexing is a slot.

4. The screen assembly of claim 1, wherein the indexing stage comprises:

a first gear (10) which is combined with the gear selecting part (29), wherein the first filtered juice through hole (3) and the second filtered juice through hole (8) are completely staggered without forming a filtered juice gap;

a second shift position (11) which is combined with the shift selection part (29), wherein the first filtered juice through hole (3) and the second filtered juice through hole (8) are partially staggered to form a first filtered juice gap (30);

and a third gear (12) which is combined with the gear selecting part (29), wherein the first juice filtering through holes (3) and the second juice filtering through holes (8) are partially staggered to form a second juice filtering gap (31), and the width of the second juice filtering gap (31) is greater than that of the first juice filtering gap (30).

5. The sieve assembly according to claim 4, wherein the second shift stage (11) is provided between the first shift stage (10) and the third shift stage (12).

6. The screen assembly according to claim 5, wherein an angle A of an included angle formed between the first gear (10) and the second gear (11) is not equal to an angle B of an included angle formed between the third gear (12) and the second gear (11) when an axis on which the second gear (11) is located is taken as a center line.

7. The sieve assembly according to claim 1, wherein the width of the first juice through holes (3) is smaller than the width of the second grating (9) and the width of the second juice through holes (8) is smaller than the width of the first grating (4).

8. The sieve assembly according to claim 1, wherein the width of the first and second juice through holes (3, 8) decreases from top to bottom.

9. The screen assembly of claim 1, wherein the inner peripheral wall of the first grill (1) is further provided with a guide structure for guiding the food material towards the bottom of the first grill (1).

10. The screen assembly of claim 9, wherein the guide structure comprises a plurality of guide rails (7) spaced apart on the inner circumferential wall of the first grill (1).

11. The screen assembly of claim 1, wherein the locating structure comprises a plurality of first locating protrusions (6) or grooves provided on the outer circumferential surface of the lower end of the first grill (1);

and a plurality of second positioning grooves (13) or protrusions are arranged on the inner circumferential surface of the lower end of the second cylinder grid (2), and the first positioning protrusions (6) or the grooves are combined with the second positioning grooves (13) or the protrusions in an inserting mode from top to bottom and used for relatively positioning the first cylinder grid (1) and the second cylinder grid (2).

12. The filter screen assembly according to claim 11, wherein the upper end of the first cylinder grid (1) is provided with a plurality of positioning lugs (5) formed by extending the outer circumferential surface of the first cylinder grid (1) outwards, the juice collecting cup (14) comprises a plurality of third positioning protrusions or grooves arranged at the bottom and a fourth positioning groove (15) arranged at the upper end, the lower end of the first cylinder grid (1) is combined with the third positioning protrusions or grooves in a manner that the first positioning protrusions (6) or grooves are inserted from top to bottom, and the upper end of the first cylinder grid (1) is combined with the fourth positioning groove (15) in a manner that the positioning lugs (5) are inserted from top to bottom, so that the first cylinder grid (1) is fixed in the juice collecting cup (14).

13. The screen assembly of claim 1, wherein the first and second grates (1, 2) are tapered in diameter from top to bottom.

14. A juice machine comprising a juice collecting cup (14), characterized in that it further comprises a sieve assembly according to any of claims 1-13 arranged in said juice collecting cup (14).

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