Normal juice machine

Abstract

The utility model relates to a normal juice machine which comprises a filter cover and a propelling screw rod, the propelling screw rod is coaxially and rotatably connected to the top of the filter cover, an extrusion cover is integrally formed at the bottom of the propelling screw rod, the extrusion cover is nested on the outer side of the filter cover, and an extrusion seam is formed between the extrusion cover and the filter cover; the filtering cover is provided with a seepage structure corresponding to the squeezing seam, a juice collecting cavity communicated with the seepage structure is formed in the filtering cover, a plurality of fixed squeezing parts are arranged on the outer wall face of the filtering cover in the circumferential direction, and a plurality of movable squeezing parts rotating relative to the fixed squeezing parts in the circumferential direction are arranged on the inner wall face of the squeezing cover in the circumferential direction; the top of the extrusion cover is provided with an annular step surface arranged on the periphery of the propelling screw rod, and the annular step surface is provided with a plurality of discharge ports suspended above the extrusion seam; according to the screw rod structure, the filtering part is arranged on the inner side of the extruding part, so that the strength of the filtering part is improved, and the filtering cover is not easy to deform and damage due to stress.

Description

Technical Field

[0001] The utility model relates to the field of juice extractors, and specifically relates to a juice extractor. Background Art

[0002] At present, the product structure of the juice extractor is like that of the juice extraction assembly of a large-diameter juice extractor with the application number: CN202322652763.1 in the Chinese patent literature. Its main structure includes a fruit cutting cup, a fruit cutting knife, a juice extraction cup, a juice extraction screw, and a juice extraction mesh cylinder. The fruit cutting knife is arranged in the fruit cutting cup, the juice extraction cup is arranged at the bottom of the fruit cutting cup, the juice extraction mesh cylinder is arranged in the juice extraction cup, the juice extraction screw is arranged in the juice extraction mesh cylinder, and the top of the juice extraction screw drives the fruit cutting knife to rotate. In this prior art, the juice extraction screw is placed in the juice extraction mesh cylinder, and the juice extraction mesh cylinder is arranged outside the juice extraction screw. During the pressing process, the juice extraction screw generates a force towards the juice extraction mesh cylinder, and the juice squeezed out from the squeezed fruits and vegetables will penetrate through the juice extraction mesh cylinder and seep outwards for filtration. Therefore, this structure of the juice extraction assembly has high requirements for the strength of the juice extraction mesh cylinder, otherwise it is easy to deform and damage the juice extraction mesh cylinder. Moreover, the juice extraction screw of this structure can only finely extract the fruits and vegetables through the lower part, but the fine extraction path is short, thus affecting the juice extraction efficiency. Therefore, the applicant provides a new solution that can solve the above prior art problems through the improvement and perfection of the prior art for consumers to choose and use. Summary of the Invention

[0003] The purpose of the utility model is to provide a juice extractor with a simple and reasonable structure, convenient installation, and stable structure.

[0004] A juice extractor includes a filter cover and a propulsion screw. The propulsion screw is coaxially and rotationally connected to the top of the filter cover. An extrusion cover is integrally formed at the bottom of the propulsion screw. The extrusion cover is nested outside the filter cover and forms an extrusion gap with the filter cover. The filter cover is provided with a liquid seepage structure corresponding to the extrusion gap, and a juice collection cavity communicating with the liquid seepage structure is formed inside the filter cover. And a plurality of fixed extrusion and pushing parts are circumferentially arranged on its outer wall surface. A plurality of movable extrusion and pushing parts that rotate circumferentially relative to the fixed extrusion and pushing parts are circumferentially arranged on the inner wall surface of the extrusion cover. An annular step surface placed outside the propulsion screw is provided at the top of the extrusion cover, and a plurality of discharge ports suspended above the extrusion gap are opened on the annular step surface.

[0005] The purpose of the utility model can also be solved by adopting the following technical measures:

[0006] As a more specific solution, a support ring is extended outwards from the bottom of the filter cover. An upper limit groove facing upwards is opened on the support ring. The bottom surface of the extrusion cover abuts on the upper limit groove, and a slag discharge port communicating with the extrusion gap is opened in the upper limit groove.

[0007] As a further solution, it further includes a juice collecting cup, and a slag discharging channel and a juice discharging channel are formed in the juice collecting cup; a circumferential juice collecting groove communicated with the juice discharging channel is concavely arranged at the bottom of the juice collecting cup, the bottom of the extrusion cover is positioned and abutted in the circumferential juice collecting groove, and the circumferential juice collecting groove is received below the cavity wall of the juice collecting cavity, and the slag discharging port corresponds to and is communicated with the inlet of the slag discharging channel.

[0008] As a further solution, it further includes a feeding cup, a hopper is integrally formed at the bottom of the feeding cup, the hopper is embedded in the juice collecting cup and is detachably connected to the juice collecting cup, the pushing screw is placed in the hopper, and a squeezing gap is formed between the pushing screw and the hopper, and the squeezing gap is communicated with the extrusion gap through a discharging port, the bottom surface of the hopper is pressed on the annular step surface, and the pushing screw is limited between the hopper and the filtering cover.

[0009] As a further solution, one of the fixed squeezing part and the movable squeezing part includes a plurality of spiral fine squeezing blades arranged circumferentially, and the other of the fixed squeezing part and the movable squeezing part includes a plurality of longitudinal squeezing ribs arranged circumferentially.

[0010] As a further solution, a shredding blade is arranged on one side edge of the annular step surface corresponding to the discharging port, and the shredding blade extends along the rotation direction of the pushing screw.

[0011] As a further solution, a juice discharging port communicating the squeezing gap and the inner cavity of the juice collecting cup is formed on the wall surface of the hopper, and a juice and slag filtering net is arranged in the juice discharging port.

[0012] As a further solution, two first anti-fooling gate plates for anti-fooling cooperation with the slag discharging channel and two second anti-fooling gate plates for anti-fooling cooperation with the juice discharging channel extend from the bottom surface of the supporting ring, and the distance between the two first anti-fooling gate plates is greater than the distance between the two second anti-fooling gate plates.

[0013] As a further solution, a bottom flanging adapted to the inner diameter of the juice collecting cup extends outward from the bottom of the hopper, the lower surface of the bottom flanging forms the bottom surface of the hopper, and a limiting retaining ring extends from the lower surface of the bottom flanging, and the limiting retaining ring is limited outside the extrusion cover.

[0014] As a further solution, the pushing screw includes a screw body, a plurality of spiral pushing blades are circumferentially arranged on the outer wall of the screw body, a pre-cutting tool head is integrally formed at the top end of the screw body, the pre-cutting tool head is placed in the middle of the hopper, and a connecting shaft is arranged at the bottom of the pushing screw, and the connecting shaft passes through the filtering cover and extends out of the juice collecting cup.

[0015] The beneficial effects of the present utility model are as follows:

[0016] A juice extractor of the present utility model. In this screw structure, the filtering part is arranged inside the extrusion part, which is beneficial to improving the strength of the filtering part and making the filter cover not easily deformed or damaged under force. Through the pushing screw and the extrusion gap, fruits and vegetable raw materials with different volumes and hardnesses can be effectively juiced. The fruits and vegetables crushed by the pushing screw directly fall into the extrusion gap through the discharge port for fine squeezing.

[0017] In addition, both the extrusion cover and the filter cover have a certain height, so the width of the extrusion gap formed between them is uniform, and the path of fine squeezing of fruits and vegetables is long, which can effectively improve the pressing efficiency. The whole structure has a stable crushing process, a high juice yield, and good smoothness during the juicing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an embodiment in the present utility model.

[0019] Figure 2 It is a schematic exploded view of the filter cover and the pushing screw in the present utility model.

[0020] Figure 3 It is a schematic exploded view of the filter cover and the pushing screw from another angle in the present utility model.

[0021] Figure 4 It is a schematic cross-sectional view of the juice extractor in the present utility model.

[0022] Figure 5 It is a schematic cross-sectional view of the feeding cup in the present utility model.

[0023] Figure 6 It is a schematic cross-sectional view of the juice collection cup in the present utility model.

[0024] Figure 7 It is a schematic structural diagram of the cooperation between the juice collection cup and the anti-fooling gate plate in the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be further described below with reference to the drawings and embodiments.

[0026] As Figures 1 to 7As shown, a juicer includes a filter cover 1 and a propulsion screw 2, wherein the propulsion screw 2 is coaxially rotatably connected to the top of the filter cover 1, and an extrusion cover 21 is integrally formed at the bottom of the propulsion screw 2, wherein the extrusion cover 21 is nested outside the filter cover 1 and forms an extrusion gap A with the filter cover 1; a liquid seepage structure is provided on the filter cover 1 corresponding to the extrusion gap A, and a juice collecting chamber 11 connected to the liquid seepage structure is formed inside the filter cover 1, and a plurality of fixed extrusion parts 12 are circumferentially provided on the outer wall surface thereof, and a plurality of movable extrusion parts 22 circumferentially rotatable relative to the fixed extrusion parts 12 are circumferentially provided on the inner wall surface of the extrusion cover 21; an annular step surface 23 disposed on the outer periphery of the propulsion screw 2 is provided on the top of the extrusion cover 21, and a plurality of discharge ports 24 suspended above the extrusion gap A are opened on the annular step surface 23.

[0027] Compared with the prior art, this screw structure arranges the filtering part on the inner side of the extruding part, which is beneficial to improving the strength of the filtering part and making the filter cover less likely to be deformed or damaged by force. The pushing screw 2 and the extruding seam A can effectively squeeze the juice of vegetable and fruit raw materials of different volumes and hardnesses. The fruits and vegetables crushed by the pushing screw 2 directly fall into the extruding seam A through the discharge port 24 for fine squeezing.

[0028] In addition, the extrusion cover 21 and the filter cover 1 both have a certain height, so the width of the extrusion gap formed between the two is uniform, and the path for fine squeezing of fruits and vegetables is long, which can effectively improve the squeezing efficiency. The crushing process of the entire structure is stable, the juice yield is high, and the juicing process is smooth.

[0029] The liquid seepage structure includes a filter slit or filter hole, which can be formed by a filter mesh made of metal, or directly opened on the side wall of the filter cover 1, or formed by a gap between two parts of the component after being spliced ​​together.

[0030] A supporting ring 13 extends outward from the bottom of the filter cover 1, and an upward upper limit groove 14 is provided on the supporting ring 13. The bottom surface of the extrusion cover 21 is abutted against the upper limit groove 14, and a slag outlet 15 connected to the extrusion seam A is provided in the upper limit groove 14; the supporting ring 13 can support the extrusion cover 21 and close the bottom opening between the filter cover 1 and the extrusion cover 21, so that the pomace is confined to the slag outlet 15 for discharge.

[0031] The juice collecting cup 3 is also included. The juice collecting cup 3 is provided with a slag discharge channel 301 and a juice outlet channel 302. The bottom of the juice collecting cup 3 is recessed with an annular juice collecting groove 303 connected with the juice outlet channel 302. The bottom of the extrusion cover 21 is positioned to abut against the annular juice collecting groove 303, and the annular juice collecting groove 303 is supported under the cavity wall of the juice collecting cavity 11. The slag outlet 15 corresponds to the inlet 304 of the slag discharge channel 301 and is connected to each other.

[0032] The juice produced by squeezing in the squeezing seam A flows through the filter cover 1 and into the juice collecting cavity 11 inside the filter cover 1, and makes the filtered juice flow downward along the cavity wall of the juice collecting cavity 11 and into the circumferential juice collecting groove 303. The juice converging in the circumferential juice collecting groove 303 finally discharges the original juice outside the juice extractor through the juice outlet channel 302, while the juice at the bottom of the squeezing seam A will enter the inlet 304 of the residue discharging channel 301 through the residue outlet 15 and finally be extruded outside the juice extractor through the residue discharging channel 301.

[0033] During installation, a ring step surface is provided at the top of the outer groove wall of the circumferential juice collecting groove 303, and the supporting ring 13 is positioned and abutted against the ring step surface to ensure that the filter cover 1 and the juice collecting cup 3 are concentrically arranged.

[0034] It further includes a feeding cup 4. A hopper 5 is integrally formed at the bottom of the feeding cup 4. The hopper 5 is embedded in the juice collecting cup 3 and is detachably connected to the juice collecting cup 3. The pushing screw 2 is placed in the hopper 5, and a squeezing seam B is formed between the pushing screw 2 and the hopper 5. The squeezing seam B is communicated with the squeezing seam A through the discharging port 24. The bottom surface of the hopper 5 is pressed against the annular step surface 23, and the pushing screw 2 is limited between the hopper 5 and the filter cover 1.

[0035] The top of the feeding cup 4 is provided with a large opening, which enables the feeding cup 4 to directly put in large pieces of fruits and vegetables without the need for fine cutting. In addition, the pushing screw 2 can be pressed and fixed through the installed hopper 5, making the pushing screw 2 easier to disassemble and assemble, and ensuring that the pushing screw 2 can rotate around its axis while omitting the positioning point at the top of the pushing screw 2, so that the pre-cutting tool head 28 in the pushing screw 2 can crush the fruits and vegetables at the center position of the hopper, improving the juice extraction efficiency.

[0036] In this embodiment, the movable squeezing part 22 includes a plurality of longitudinally arranged circumferential squeezing ribs 25, and the longitudinally arranged circumferential squeezing ribs 25 are integrally arranged on the inner wall surface of the squeezing cover 21. The fixed squeezing part 12 includes a plurality of circumferentially arranged spiral fine squeezing blades 16, and the spiral fine squeezing blades 16 are integrally arranged on the outer wall surface of the filter cover 1. Among them, the spiral fine squeezing blades 16 can squeeze the fruits and vegetables, and the rotating longitudinally arranged circumferential squeezing ribs 25 can push the fruits and vegetables to move downward along the spiral fine squeezing blades 16.

[0037] In addition, the plurality of longitudinally arranged circumferential squeezing ribs 25 are all arranged in a staggered manner with the discharging port 24 to avoid the longitudinally arranged circumferential squeezing ribs 25 protruding and blocking the suspended space below the discharging port 24. Moreover, a plurality of bottom grooves 210 are circumferentially formed at the bottom of the inner wall surface of the squeezing cover 21, and the side wall of the bottom groove 210 facing away from the rotation direction of the pushing screw 2 is provided with an arc surface. The bottom grooves 210 can increase the butt joint area between the squeezing seam A and the residue outlet 15 and improve the residue discharging efficiency.

[0038] In more embodiments, the positions of the longitudinally arranged circumferential squeezing ribs 25 and the spiral fine squeezing blades 16 can be swapped.

[0039] A crushing blade 231 is provided on one side of the annular step surface 23 corresponding to the discharge port 24. The crushing blade 231 is extended along the rotation direction of the advancing screw 2. The crushing blade 231 is a double-sided blade or a single-sided blade. If it is a single-sided blade, the blade surface faces downward. During the juicing process, when the fruit and vegetable pieces in the hopper 5 are stuck in the discharge port 24, the crushing blade 231 rotates with the extrusion cover 21 to cut the fruit and vegetable pieces, so that the fruit and vegetable pieces are chopped and enter the extrusion gap A for subsequent extrusion.

[0040] A juice outlet 51 is provided on the wall of the hopper 5, communicating with the squeezing and pushing seam B and the inner cavity of the juice collecting cup 3. A juice residue filter 52 is provided in the juice outlet 51. When the pushing screw 2 crushes the fruits and vegetables in the hopper 5, a small amount of juice is also generated. Therefore, the juice flows into the juice collecting cup 3 through the juice outlet 51 for collection, and the juice residue filter 52 can prevent the blocky fruits and vegetables from entering the juice outlet 51.

[0041] Extending from the bottom surface of the support ring 13 are two first foolproof gate plates 17 that foolproofly cooperate with the slag discharge channel 301 and two second foolproof gate plates 18 that foolproofly cooperate with the juice discharge channel 302. The spacing between the two first foolproof gate plates 17 is greater than the spacing between the two second foolproof gate plates 18.

[0042] The inner end of the slag discharge channel 301 extends into the annular juice collecting groove 303 and opens an upward entrance 304. The two first fool-proof gate plates 17 are limited on both sides of the slag discharge channel 301. A connecting port 305 is provided between the annular juice collecting groove 303 and the juice outlet channel 302. Two second fool-proof gate plates 18 are fitted in the connecting port 305. The first fool-proof gate plates 17 and the second fool-proof gate plates 18 enable the filter cover 1 to be directionally assembled into the juice collecting cup 3, thereby playing an anti-fool role and ensuring that the slag outlet 15 is aligned with the entrance 304 of the slag discharge channel 301.

[0043] The bottom of the hopper 5 extends outward to have a bottom flange 53 adapted to the inner diameter of the juice collecting cup 3, the lower surface of the bottom flange 53 forms the bottom surface of the hopper 5, the lower surface of the bottom flange 53 extends to have a limiting retaining ring 54, the limiting retaining ring 54 is limited to the outside of the extrusion cover 21; the limiting retaining ring 54 can limit the upper part of the extrusion cover 21 to prevent the extrusion cover 21 from radially shaking under the action of force.

[0044] In addition, an outer retaining ring 55 extends from the edge of the bottom flange 53 along the inner wall of the juice collecting cup 3 , and the outer retaining ring 55 plays a certain positioning or supporting role for the feeding cup 4 .

[0045] The propulsion screw 2 includes a screw body 26. A number of spiral extrusion blades 27 are circumferentially arranged on the outer wall of the screw body 26. A pre-cutting tool head 28 is integrally formed at the top of the screw body 26. The pre-cutting tool head 28 is placed at the middle position of the hopper 5. A connecting shaft 29 is provided at the bottom of the propulsion screw 2. A shaft hole 101 for rotatably connecting with the connecting shaft 29 is formed at the top of the filter cover 1. The connecting shaft 29 passes through the shaft hole 101 and extends outside the bottom of the juice collecting cup 3 for driving connection with the motor output shaft at the bottom.

[0046] After the fruits and vegetables in the hopper 5 are broken by the pre-cutting tool head 28, they can be quickly dispersed around the entire screw body 34, and are subjected to secondary cutting and fine extrusion under the action of the spiral extrusion blades 27 and the spiral fine extrusion blades 16, improving the juice extraction efficiency.

[0047] A number of circumferentially evenly distributed fastening convex parts 56 are provided on the outer side wall of the hopper 5. A number of rotary fastening blocks 306 corresponding to the fastening convex parts 56 are provided on the inner wall of the cup mouth of the juice collecting cup 3. Through the circumferential rotation and cooperation of the L-shaped rotary fastening blocks 306 and the fastening convex parts 56, the feeding cup 4 can be detachably connected to the upper side of the juice collecting cup 3. The quick detachable cooperation can be realized through the rotary fastening connection. In addition, after the assembly is in place, a downward thrust can be formed on the feeding cup 4 to ensure that the bottom surface of the hopper 5 presses against the annular step surface 23.

[0048] In addition, in this embodiment, a number of spiral flow disturbing convex ribs 57 are circumferentially arranged on the inner wall surface of the upper part of the hopper 5, and a number of longitudinal flow disturbing convex ribs 58 are circumferentially arranged on the inner wall surface of the lower part of the hopper 5. The spiral flow disturbing convex ribs 57 and the longitudinal flow disturbing convex ribs 58 can improve the crushing efficiency of the fruits and vegetables.

[0049] The above is the preferred solution of the present invention, showing and describing the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A juicer, comprising a filter housing (1) and a propulsion screw (2), characterized in that The advancing screw (2) is coaxially rotatably connected to the top of the filter cover (1); the bottom of the advancing screw (2) is integrally formed with an extrusion cover (21); the extrusion cover (21) is nested outside the filter cover (1) and forms an extrusion gap (A) with the filter cover (1); a liquid seepage structure is provided on the filter cover (1) corresponding to the extrusion gap (A); the inside of the filter cover (1) forms a juice collecting cavity (11) connected to the liquid seepage structure; a plurality of fixed extrusion parts (12) are circumferentially provided on the outer wall surface of the filter cover; a plurality of movable extrusion parts (22) rotatably relative to the fixed extrusion parts (12) are circumferentially provided on the inner wall surface of the extrusion cover (21); an annular step surface (23) is provided on the top of the extrusion cover (21) and is disposed on the outer periphery of the advancing screw (2); a plurality of discharge ports (24) suspended above the extrusion gap (A) are provided on the annular step surface (23).

2. A juicer according to claim 1, characterized in that: A support ring (13) extends outward from the bottom of the filter cover (1), an upper limit groove (14) facing upward is formed on the support ring (13), the bottom surface of the extrusion cover (21) is supported on the upper limit groove (14), and a slag outlet (15) communicating with the extrusion seam (A) is formed in the upper limit groove (14).

3. A juice machine according to claim 2, characterized in that: The invention also comprises a juice collecting cup (3), wherein the juice collecting cup (3) is provided with a slag discharge channel (301) and a juice outlet channel (302); an annular juice collecting groove (303) communicating with the juice outlet channel (302) is recessed at the bottom of the juice collecting cup (3); the bottom of the extrusion cover (21) is positioned and abutted in the annular juice collecting groove (303), and the annular juice collecting groove (303) is supported below the cavity wall of the juice collecting cavity (11); the slag outlet (15) corresponds to the inlet (304) of the slag discharge channel (301) and is communicated with each other.

4. A juicer according to claim 3, characterized in that: The invention also comprises a feed cup (4), the bottom of which is integrally formed with a hopper (5), the hopper (5) being embedded in the juice collecting cup (3) and being detachably connected to the juice collecting cup (3), the thrust screw (2) being disposed in the hopper (5) and forming an extrusion slit (B) with the hopper (5), the extrusion slit (B) being connected to the extrusion slit (A) via a discharge port (24), the bottom surface of the hopper (5) being pressed against the annular step surface (23), and the thrust screw (2) being limited between the hopper (5) and the filter cover (1).

5. The juicer according to claim 1, characterized in that: One of the fixed pushing portion (12) and the movable pushing portion (22) comprises a plurality of circumferentially arranged spiral fine-extrusion blades (16), and the other of the fixed pushing portion (12) and the movable pushing portion (22) comprises a plurality of circumferentially arranged longitudinal pushing ribs (25).

6. A juicer according to claim 1, characterized in that A material crushing blade (231) is provided on one side of the annular step surface (23) corresponding to the discharge opening (24), and the material crushing blade (231) is extended along the rotation direction of the propulsion screw (2).

7. A juicer according to claim 4, characterized in that A juice outlet (51) communicating with the squeezing and pushing slit (B) and the inner cavity of the juice collecting cup (3) is provided on the wall surface of the hopper (5), and a juice residue filter (52) is provided in the juice outlet (51).

8. The juice machine according to claim 3, characterized in that: Extending from the bottom surface of the support ring (13) are two first fool-proof gate plates (17) that cooperate with the slag discharge channel (301) to prevent foolishness, and two second fool-proof gate plates (18) that cooperate with the juice discharge channel (302) to prevent foolishness, wherein the spacing between the two first fool-proof gate plates (17) is greater than the spacing between the two second fool-proof gate plates (18).

9. A juicer according to claim 4, characterized in that The bottom of the hopper (5) extends outward to form a bottom flange (53) adapted to the inner diameter of the juice collecting cup (3); the lower surface of the bottom flange (53) forms the bottom surface of the hopper (5); the lower surface of the bottom flange (53) extends to form a limit retaining ring (54); the limit retaining ring (54) is limited to the outside of the extrusion cover (21).

10. The juicer according to claim 3, characterized in that The advancing screw (2) comprises a screw body (26), the outer wall of the screw body (26) is provided with a plurality of spiral extrusion blades (27) in the circumferential direction, the top end of the screw body (26) is integrally formed with a pre-cutting blade head (28), the pre-cutting blade head (28) is placed in the middle of the hopper (5), and the bottom of the advancing screw (2) is provided with a connecting shaft (29), the connecting shaft (29) passes through the filter cover (1) and extends out of the juice collecting cup (3).

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