Juicer grinding tool

Abstract

The present invention discloses a grinding tool for a juicer, comprising a housing, a grinding chamber is provided on the housing, and a screw cutter head, comprising a driving connection part and a screw, a cutting chamber is provided in the driving connection part, and at least one cutting blade is provided in the cutting chamber; the screw is arranged on the lower end surface of the driving connection part, and a plurality of cutting spirals are provided on the outer circumferential surface of the screw; a feeding port is provided on the bottom surface of the cutting chamber; and a filter screen is sleeved on the outer circumferential surface of the screw. In the present invention, a cutting chamber is provided on the top surface of the driving connection part, and large pieces of fruits and vegetables entering the grinding tool are cut by the cutting blades arranged on the inner wall of the cutting chamber, thereby improving the cutting effect of large pieces of fruits and vegetables, reducing the grinding resistance of the screw, and playing a role in reducing the working load of the motor; the cutting blades are arranged on the inner wall of the cutting chamber to avoid scratching or cutting the user, greatly improving the safety of the grinding tool, and eliminating safety hazards.

Description

Technical Field

[0001] The invention relates to the technical field of juicers, and in particular to a grinding tool for a juicer. Background Art

[0002] As people's living standards improve, they pay more and more attention to healthy diets, and their requirements for the nutrition and taste of fruit and vegetable juice drinks are gradually increasing. The existing vertical juicer generally includes a main unit and a pressing component. The main unit includes a machine base and a motor arranged in the machine base. The pressing component includes a juice collecting chamber, an upper cover, a screw arranged longitudinally in the juice collecting chamber, and an extrusion barrel sleeved on the outside of the screw. The extrusion barrel and the screw cooperate to extrude and crush the material. The juice squeezed out of the material is discharged through the juice outlet, and the remaining material residue is discharged from the residue outlet. However, when the existing vertical screw extrusion juicer is working, large pieces of material are easily stuck between the cutting section and the grinding section of the screw, and are not easy to be squeezed downward, which easily leads to excessive load on the motor and poor material crushing effect. In addition, accessories such as the juice collecting chamber and the upper cover are also prone to deformation and shaking due to uneven circumferential force.

[0003] To this end, Chinese utility model patent CN210540714U provides a vertical screw squeeze juicer, including a machine base, a motor, a juice collecting chamber, an upper cover and a screw, the screw including a screw shaft and a screw body, a main spiral is provided on the screw body, the main spiral includes a smoothly connected spiral truncated cone and a spiral protrusion, the spiral truncated cone extends downward from the top of the screw body, the spiral protrusion extends downward from the end of the spiral truncated cone to the bottom of the screw body, a cutting edge is provided at the beginning of the top of the spiral truncated cone, and the screw body is also provided with a plurality of auxiliary spirals extending from the bottom of the spiral truncated cone to the bottom of the screw body. The spiral truncated cone with a cutting edge can divide large pieces of material into small pieces, avoid large pieces of material stuck in the advancing cutting end and the crushing and grinding section, reduce the load of the motor when working to a certain extent, and improve the stability of the whole machine when working.

[0004] However, the above-mentioned vertical screw squeeze juicer has the following disadvantages:

[0005] The cutting edge is set at the starting point of the top of the spiral cone. The cutting edge can only cut the material before it enters the spiral. The cutting effect is prioritized and the juicing efficiency is low. The cutting edge is set at the upper end of the screw. When the cutting edge is relatively sharp, it is easy to scratch or cut the operator during the disassembly of the screw, which poses a great safety hazard.

[0006] In view of this, there is an urgent need to improve the existing screw structure to improve the juice extraction efficiency and safety of the screw and facilitate disassembly and cleaning. Summary of the invention

[0007] The technical problem to be solved by the present invention is the low efficiency, poor safety and inconvenient disassembly and cleaning of the existing screw juice extractor.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0009] A juicer grinding tool comprises a housing, a grinding chamber is provided on the housing, a juice outlet and a residue outlet are provided on the housing, and further comprises:

[0010] The screw cutter head is rotatably arranged in the grinding chamber, and comprises a driving connection part and a screw, wherein a cutting chamber is arranged in the driving connection part, and at least one cutting blade is arranged in the cutting chamber; the screw is arranged on the lower end surface of the driving connection part, and a plurality of cutting spirals are arranged on the outer circumferential surface of the screw; and a feeding port is arranged on the bottom surface of the cutting chamber;

[0011] The filter screen is sleeved on the outer circumferential surface of the screw and forms a grinding channel with the outer circumferential surface of the screw. The feed outlet is connected to the grinding channel. The outer circumferential surface of the filter screen and the inner wall of the grinding chamber form a juice channel.

[0012] In this solution, the cutting cavity is funnel-shaped, and the cutting blade is spiral-shaped and arranged radially along the cutting cavity; the cutting blade extends upward from the bottom surface of the cutting cavity to the side wall of the cutting cavity.

[0013] In this embodiment, the cutting spiral includes a main spiral and several auxiliary spirals, the main spiral extends downward from the top of the screw to the bottom of the screw, and the auxiliary spiral extends downward from the middle of the screw to the bottom of the screw; the spiral direction of the cutting blade is opposite to the spiral direction of the main spiral and the auxiliary spiral.

[0014] In this solution, a limiting hole is provided on the bottom surface of the screw rod, and a limiting boss is provided upward on the bottom surface of the grinding chamber to match the limiting hole.

[0015] In this solution, the driving motor is arranged above the housing, a spline shaft is provided at the center of the bottom surface of the cutting chamber, and the motor shaft of the driving motor is connected to the spline shaft through a coupling.

[0016] In this embodiment, the driving motor is arranged below the shell, a driving shaft is provided in the limiting hole, a motor groove is provided on the bottom surface of the limiting boss, the lower end of the driving shaft passes through the limiting boss and is provided in the motor groove, a coupling groove is provided at the lower end of the driving shaft, and the driving motor is connected to the driving shaft through the coupling groove.

[0017] In this solution, the filter screen includes:

[0018] The net cylinder has filtering holes evenly distributed on the side thereof; the upper and lower parts of the net cylinder are provided with fixing holes;

[0019] A fixing frame, comprising a first fixing ring and a second fixing ring, wherein the first fixing ring and the second fixing ring are connected via a connecting arm, and fixing protrusions matching the fixing holes are arranged on the inner circumference surfaces of the first fixing ring and the second fixing ring;

[0020] The fixing seat is arranged on the bottom surface of the second fixing ring, a plurality of fixing grooves are radially arranged on the fixing seat, and fixing protrusions matched with the fixing grooves are arranged on the bottom surface of the grinding chamber.

[0021] This plan also includes:

[0022] A plurality of filter scrapers are radially arranged along the screw cutter head and detachably connected to the drive connection portion, and the inner end surface of the scraper body is arranged opposite to the outer circumferential surface of the filter.

[0023] In this solution, an inserting portion is provided at the upper end of the filter scraper, and a slot is provided on the outer circumferential surface of the drive connection portion, which is matched with the inserting portion.

[0024] Compared with the prior art, the juicer grinding tool provided by the present invention comprises a shell and a screw cutter head and a filter screen arranged in the shell. The screw cutter head comprises a drive connection part and a screw. The top surface of the drive connection part is provided with a cutting cavity. The large pieces of fruits and vegetables entering the grinding tool are cut by the cutting blades arranged on the inner wall of the cutting cavity, thereby improving the cutting effect of the large pieces of fruits and vegetables, reducing the grinding resistance of the screw, and playing a role in reducing the working load of the motor; the cutting blades are arranged on the inner wall of the cutting cavity. When the user needs to disassemble the grinding tool, he can disassemble it by grasping the cutting cavity to avoid scratching or cutting the user, thereby greatly improving the safety of the grinding tool and eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a grinding tool in the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the grinding tool in the present invention;

[0027] Figure 3 It is a cross-sectional view of the grinding tool installed under the driving motor in the present invention;

[0028] Figure 4 It is a front view of the housing in the present invention;

[0029] Figure 5 It is a front view of the screw blade installed on the driving motor in the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the filter screen in the present invention.

[0031] in, Figures 1 to 6The corresponding relationship between the reference numerals and component names is as follows:

[0032] 1 housing, 10 grinding chamber, 2 screw cutter head, 11 juice outlet, 12 slag outlet, 21 drive connection part, 22 screw, 210 cutting chamber, 211 cutting blade, 212 feeding port, 5 filter scraper, 51 insertion part, 213 slot, 221 main spiral, 222 auxiliary spiral, 223 limiting hole, 13 limiting boss, 31 net cylinder, 32 fixing frame, 33 fixing seat, 310 filtering hole, 311 fixing hole, 321 first fixing ring, 322 second fixing ring, 323 connecting arm, 324 fixing convex point, 331 fixing groove, 14 fixing convex block, 214 spline shaft, 224 driving shaft, 225 coupling groove, 130 motor groove. DETAILED DESCRIPTION

[0033] The present invention provides a grinding tool for a juicer, comprising a housing, a screw cutter head and a filter screen, wherein the screw cutter head comprises a driving connection part and a screw, wherein a cutting chamber is arranged in the driving connection part, and a cutting blade in the cutting chamber cuts large pieces of fruits and vegetables into small pieces, and then the juice is squeezed by the screw, thereby improving the grinding efficiency of the screw cutter head, and the cutting blade is arranged in the cutting chamber, thereby improving the safety of the screw cutter head, and avoiding scratches or cuts on the user during disassembly and assembly. The present invention is described in detail below in conjunction with the drawings and specific embodiments of the specification.

[0034] like Figure 1 , Figure 2 As shown, the juicer grinding tool provided by the present invention comprises a housing 1, a grinding chamber 10 is arranged in the housing 1, a screw cutter head 2, a filter screen and a drive shaft. The housing 1 is also provided with a juice outlet 11 and a slag outlet 12.

[0035] The screw cutter head 2 is rotatably arranged in the grinding chamber 10, and includes a driving connection part 21 and a screw 22. A cutting chamber 210 is arranged on the top surface of the driving connection part 21, and the cutting chamber 210 is funnel-shaped. A cutting blade 211 is arranged on the inner wall of the cutting chamber 210, and the cutting blade 211 is spirally arranged along the radial direction of the cutting chamber 210. The cutting blade 211 extends upward from the bottom surface of the cutting chamber 210 to the side wall of the cutting chamber 210, and is used to cut large pieces of fruits and vegetables entering the grinding tool into small pieces. A feeding port 212 is also arranged on the bottom surface of the cutting chamber 210.

[0036] A filter scraper 5 is also provided on the outer circumferential surface of the driving connection part 21. The filter scraper 5 is radially arranged along the driving connection part 21, and an inserting part 51 is provided on the top surface thereof. A slot 213 matching the inserting part 51 is provided on the outer circumferential surface of the driving connection part 21. The filter scraper 5 is detachably inserted on the driving connection part 21 through the inserting part 51 and the slot 213. The inner end surface of the filter scraper 5 is arranged opposite to the outer circumferential surface of the filter, and is used to scrape off the fruit and vegetable residues on the filter.

[0037] like Figure 3 and Figure 5 The screw 22 is arranged on the bottom surface of the driving connection part 21, and a plurality of cutting spirals are arranged on the outer circumferential surface of the screw 22, including a main spiral 221 and an auxiliary spiral 222. The main spiral 221 extends downward from the top of the screw 22 to the bottom of the screw 22, and the auxiliary spiral 222 extends downward from the middle of the screw 22 to the bottom of the screw 22. The spiral direction of the main spiral 221 and the auxiliary spiral 222 is opposite to the spiral direction of the cutting blade 211. A limiting hole 223 is arranged on the bottom surface of the screw 22. A limiting boss 13 is arranged on the bottom surface of the grinding chamber 10, which is adapted to the limiting hole 223. The screw 22 is arranged in the grinding chamber 10 through the matching rotation of the limiting hole 223 and the limiting boss 13.

[0038] like Figure 6 As shown, the filter screen is sleeved on the outer circumference of the screw 22, and forms a grinding channel with the outer circumference of the screw 22, and the feed port 212 is connected to the grinding channel; the outer circumference of the filter screen and the inner wall of the grinding chamber 10 form a juice channel. The filter screen includes a net tube 31, a fixing frame 32 and a fixing seat 33. The side of the net tube 31 is evenly distributed with filter holes 310, and the upper and lower parts of the net tube 31 are provided with fixing holes 311. The fixing frame 32 includes a first fixing ring 321 and a second fixing ring 322, and the first fixing ring 321 and the second fixing ring 322 are connected by a connecting arm 323. The inner circumferences of the first fixing ring 321 and the second fixing ring 322 are provided with fixing protrusions 324, which are adapted to the fixing holes 311 and are used to fix the net tube 31 on the fixing frame 32. The fixing seat 33 is arranged on the bottom surface of the second fixing ring 322 , and a plurality of fixing grooves 331 are radially arranged on the fixing seat 33 . A plurality of fixing protrusions 14 arranged radially are upwardly arranged on the bottom surface of the grinding chamber 10 . The filter screen is fixed on the lower surface of the grinding chamber 10 through the fixing grooves 331 and the fixing protrusions 11 .

[0039] like Figure 5 As shown, in one embodiment of the present invention, the drive motor adopts an upper mounted design, the drive motor is arranged above the housing 1, a spline shaft 214 is provided at the bottom center of the cutting chamber 210, and the motor shaft of the drive motor is connected to the spline shaft 214 through a coupling to drive the screw cutter head 2 to rotate.

[0040] like Figure 3 As shown, in another embodiment of the present invention, the drive motor is bottom-mounted, the drive motor is arranged below the shell 1, a drive shaft 224 is provided in the limiting hole 223, a coupling groove 225 is provided at the lower end of the drive shaft 224, a motor groove 130 is provided on the bottom surface of the limiting boss 13, the lower end of the drive shaft 224 passes through the limiting boss 13 and is arranged in the motor groove 130, the drive motor is inserted in the motor groove 130, and is connected to the drive shaft 224 through the coupling groove to drive the screw cutter head 2 to rotate.

[0041] The method of use of the present invention is as follows:

[0042] When fruits and vegetables enter the grinding tool, they first enter the cutting chamber 210. The cutting blade 211 rotates under the drive of the driving motor to cut large pieces of fruits and vegetables into small pieces. The small pieces enter the grinding channel through the discharge port 212. After being squeezed and ground by the screw 22, the juice in the fruits and vegetables passes through the filter screen into the juice channel and is discharged from the juice outlet 11. The fruit and vegetable residues are discharged through the residue outlet 12.

[0043] The filter scraper 5 rotates with the screw blade 2 to scrape off the fruit and vegetable residues remaining on the filter, thereby preventing the filter holes 310 on the filter from being blocked by the fruit and vegetable residues and affecting the filtering efficiency of the juice.

[0044] Compared with the prior art, the grinding tool of the juicer provided by the present invention comprises a shell and a screw cutter head and a filter screen arranged in the shell, the screw cutter head comprises a driving connection part and a screw, the top surface of the driving connection part is provided with a cutting cavity, and the large pieces of fruits and vegetables entering the grinding tool are cut by the cutting blades arranged on the inner wall of the cutting cavity, thereby improving the cutting effect of the large pieces of fruits and vegetables, reducing the grinding resistance of the screw, and playing a role in reducing the working load of the motor; the cutting blades are arranged on the inner wall of the cutting cavity, and when the user needs to disassemble the grinding tool, the user can disassemble it by grasping the cutting cavity to avoid scratching or cutting the user, thereby greatly improving the safety of the grinding tool and eliminating safety hazards.

[0045] In this solution, the cutting chamber is funnel-shaped, the cutting blade is spiral and is arranged radially along the cutting chamber, which increases the contact area with fruits and vegetables, improves the cutting efficiency, has a good cutting effect, and effectively reduces the load of the drive motor and the screw.

[0046] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention.

Claims

1. A juicer grinding tool, comprising a housing, a grinding chamber provided on the housing, a juice outlet and a residue outlet provided on the housing, characterized in that: Also includes: The screw cutter head is rotatably arranged in the grinding chamber, and comprises a driving connection part and a screw, wherein a cutting chamber is arranged in the driving connection part, and at least one cutting blade is arranged in the cutting chamber; the screw is arranged on the lower end surface of the driving connection part, and a plurality of cutting spirals are arranged on the outer circumferential surface of the screw; and a feeding port is arranged on the bottom surface of the cutting chamber; A filter screen is sleeved on the outer circumferential surface of the screw rod, and forms a grinding channel with the outer circumferential surface of the screw rod, and the feed outlet is connected with the grinding channel; the outer circumferential surface of the filter screen and the inner wall of the grinding chamber form a juice channel; The cutting cavity is funnel-shaped, and the cutting blade is spiral-shaped and arranged radially along the cutting cavity; the cutting blade extends upward from the bottom surface of the cutting cavity to the side wall of the cutting cavity; The cutting spiral comprises a main spiral and a plurality of auxiliary spirals, wherein the main spiral extends downward from the top of the screw to the bottom of the screw, and the auxiliary spiral extends downward from the middle of the screw to the bottom of the screw; the spiral direction of the cutting blade is opposite to the spiral directions of the main spiral and the auxiliary spiral; A limiting hole is arranged on the bottom surface of the screw rod, and a limiting boss is arranged upward on the bottom surface of the grinding chamber, which is matched with the limiting hole.

2. The juicer grinding tool according to claim 1, characterized in that: The driving motor is arranged above the housing, a spline shaft is arranged at the center of the bottom surface of the cutting chamber, and a motor shaft of the driving motor is connected to the spline shaft through a coupling.

3. The juicer grinding tool according to claim 1, characterized in that: The driving motor is arranged below the shell, a driving shaft is arranged in the limiting hole, a motor groove is arranged on the bottom surface of the limiting boss, the lower end of the driving shaft passes through the limiting boss and is arranged in the motor groove, a coupling groove is arranged at the lower end of the driving shaft, and the driving motor is connected to the driving shaft through the coupling groove.

4. The juicer grinding tool according to claim 1, characterized in that: The filter comprises: The net cylinder has filtering holes evenly distributed on the side thereof; the upper and lower parts of the net cylinder are provided with fixing holes; A fixing frame, comprising a first fixing ring and a second fixing ring, wherein the first fixing ring and the second fixing ring are connected via a connecting arm, and fixing protrusions matching the fixing holes are arranged on the inner circumference surfaces of the first fixing ring and the second fixing ring; The fixing seat is arranged on the bottom surface of the second fixing ring, a plurality of fixing grooves are radially arranged on the fixing seat, and fixing protrusions matched with the fixing grooves are arranged on the bottom surface of the grinding chamber.

5. The juicer grinding tool according to claim 1, characterized in that: Also includes: A plurality of filter scrapers are radially arranged along the screw cutter head and detachably connected to the drive connection portion, and the inner end surface of the scraper body is arranged opposite to the outer circumferential surface of the filter.

6. The juicer grinding tool according to claim 5, characterized in that: An inserting portion is provided at the upper end of the filter scraper, and a slot is provided on the outer circumferential surface of the drive connection portion, which is adapted to the inserting portion.

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