A crushing device for fruit and vegetable juice extraction with auxiliary filter pressing

Abstract

This utility model relates to the field of fruit and vegetable juicing technology, and provides a crushing device for fruit and vegetable juicing with auxiliary pressure filtration, including a support frame, with a crushing tank fixed at the top inside the support frame. This utility model utilizes an auxiliary pressure filtration mechanism added to the bottom of the crushing structure. By activating an air compressor, compressed air is injected into the serpentine airbag tube through an inflation tube. The airbag expands, pushing the anti-sticking pressure plate at the tail end to slide synchronously towards the center, applying uniform pressure to the fruit and vegetable mixture. The juice penetrates the anti-sticking filter and flows into a juice collection bottle, achieving thorough extraction of fruit and vegetable juice and significantly increasing the juice yield. Furthermore, by setting a glass fiber reinforced silicone connecting plate between adjacent serpentine airbag tubes, it not only prevents excessive expansion and deformation of the airbag to ensure stable pressure transmission, but also utilizes its elasticity to stretch and bend during airbag inflation to store potential energy, and releases potential energy during depressurization to automatically reset the anti-sticking pressure plate, facilitating automatic reset of the anti-sticking pressure plate.

Description

Technical Field

[0001] This utility model relates to the field of fruit and vegetable juicing technology, and in particular to a crushing device for fruit and vegetable juicing with auxiliary pressure filtration. Background Technology

[0002] Most of the vitamins, minerals, and polyphenols in fruits and vegetables are encased within the cell walls of plants, which are primarily composed of cellulose. Juicing breaks down these cell walls, allowing these nutrients to dissolve directly in the juice. Since the human body doesn't need to break down the cell walls during digestion and absorption, the absorption rate and utilization rate are far higher than when eating fruits and vegetables directly. Considering that the nutrients in fruits and vegetables are hidden within the cell walls, a crushing device is needed to directly tear the cell wall structure using the impact and shearing forces generated by high-speed rotation, allowing the juice and nutrients inside the cells to be fully released. Without a crushing device, squeezing alone cannot effectively break down the cell walls, and most of the nutrients will remain in the pulp residue, resulting in extremely low juice yield and nutrient utilization.

[0003] To address this, patent CN207411999U discloses a fruit crusher and juicer with protective features, including a juicer frame and a mixer. The mixer includes a housing with a fruit and vegetable inlet and an outlet. Below the outlet, a hollow platform is provided on the juicer frame for placing a container for the juice. Inside the housing is a mixing chamber connecting the inlet and outlet. A horizontally positioned mixing shaft is installed inside the mixing chamber, and spiral blades that cooperate with the inner wall of the mixing chamber to crush fruits and vegetables are provided on the outer wall of the mixing shaft. A rotating handle is provided outside the juicer frame, and a safety locking device is provided inside the hollow platform. This fruit crusher and juicer with protective features can crush and juice fruits and vegetables through the mixing shaft installed in the mixing chamber and the spiral blades installed on the outer wall of the mixing shaft. Furthermore, the safety locking device inside the hollow platform can prevent accidental operation by children, avoiding safety accidents and ensuring safe use.

[0004] While the aforementioned fruit crusher and juicer with protective features can crush and juice fruits and vegetables using a stirring shaft installed in the mixing chamber and spiral blades installed on the outer wall of the stirring shaft, and further utilizes a safety locking device inside the hollow placement platform to prevent accidental operation by children and ensure safety, it relies solely on a single shearing and crushing mode consisting of a horizontal stirring shaft and spiral blades. The crushed fruit and vegetable mixture is discharged directly from the outlet, and the juice is separated only by gravity and the slight thrust of the rotating blades. This fails to apply uniform pressure to the crushed fruit and vegetable cells, resulting in a large amount of juice remaining in the fruit pulp fibers, ultimately leading to low juice yield and waste of nutrients. Therefore, it is necessary to design a crushing device for fruit and vegetable juicing with auxiliary pressure filtration. Utility Model Content

[0005] The purpose of this invention is to provide a crushing device for fruit and vegetable juicing with auxiliary pressure filtration, in order to solve the defects of existing crushing devices for fruit and vegetable juicing, which have low juice yield and waste of nutrients due to their simple crushing and juicing structure.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a crushing device for fruit and vegetable juicing with auxiliary pressure filtration, including a support frame; The top of the support frame is fixed with a crushing tank, and a hollow rotating shaft is movably connected to the middle position inside the crushing tank. Spiral blades are evenly distributed on the hollow rotating shaft, and an air blowing anti-sticking tube is fixed to the top of the hollow rotating shaft. An auxiliary filter press mechanism is installed at the bottom of the crushing tank, and the auxiliary filter press mechanism includes a filter press shell connected to the bottom of the crushing tank, with anti-sticking pressure plates symmetrically slidably connected to both sides inside the filter press shell. A serpentine airbag tube is evenly arranged between the anti-sticking plate and the inner wall of the filter press shell. A glass fiber reinforced silicone connecting plate is fixed between adjacent serpentine airbag tubes. An air compressor is installed on the outer wall of the filter press shell. An inflation tube is connected between the air compressor and the serpentine airbag tube. The bottom of the filter press shell is slidably connected to a slag collection drawer, and the bottom of the slag collection drawer is provided with an anti-sticking filter screen.

[0007] Furthermore, the top of the crushing tank is provided with a downward-sloping feeding port, and a cover plate is threadedly connected to the top of the downward-sloping feeding port.

[0008] Furthermore, a drive housing is installed on the top of the crushing tank, and a servo motor is installed on one side of the drive housing.

[0009] Furthermore, the output end of the servo motor is connected to a worm gear, and a worm wheel is meshed on the worm gear. A hollow shaft extends upward through the top of the worm wheel and is fixed at the middle position of the worm wheel.

[0010] Furthermore, the spiral blades are provided in three parts, and the spiral blades are distributed at equal angles on the hollow rotating shaft, with the diameter of the spiral blades gradually increasing from top to bottom.

[0011] Furthermore, a miniature air pump is installed on the side of the drive housing away from the servo motor, and a filter screen is threadedly connected to the input end of the miniature air pump.

[0012] Furthermore, the output end of the micro air pump is provided with a supply pipe, and a rotary joint is provided between the supply pipe and the air blowing anti-sticking pipe. The air blowing anti-sticking pipe extends upward through the top of the hollow rotating shaft, and the bottom of the air blowing anti-sticking pipe is evenly provided with air outlets that match the top of the spiral blade. There are 3 air blowing outlets.

[0013] Furthermore, an air release valve is evenly installed at the end of the air-filling tube away from the filter press shell, and a juice collection bottle is threadedly connected at the middle position of the bottom of the filter press shell below the anti-stick filter screen.

[0014] Furthermore, the top of the anti-sticking pressure plate is provided with an inclined guide plate that matches the crushing tank.

[0015] The present invention provides a crushing device for fruit and vegetable juicing with auxiliary pressure filtration, the advantages of which are: By installing an auxiliary filter press mechanism at the bottom of the crushing structure, the air compressor is activated to inject compressed air into the serpentine airbag tube through the inflation pipe. The airbag expands and pushes the anti-sticking pressure plate at the tail end to slide synchronously towards the middle, applying uniform pressure to the fruit and vegetable mixture. The juice penetrates the anti-sticking filter screen and flows into the juice collection bottle, achieving the effect of fully squeezing and extracting fruit and vegetable juice and significantly improving the juice yield. Furthermore, by setting a glass fiber reinforced silicone connecting plate between adjacent serpentine airbag tubes, it not only prevents the airbag from over-expanding and deforming to ensure stable pressure transmission, but also utilizes its elasticity to stretch and bend during airbag inflation to store potential energy and release potential energy during depressurization to push the anti-sticking pressure plate to automatically reset, facilitating the automatic reset of the anti-sticking pressure plate. Furthermore, by setting a debris collection drawer with an anti-sticking filter screen that is slidably connected inside the filter press shell, the debris collection drawer can be pulled out to easily clean the anti-sticking filter screen and the fruit and vegetable debris on the filter screen surface, optimizing the convenience of cleaning and maintenance of the device. Equipped with spiral blades, the hollow shaft rotates at a constant speed inside the crushing tank via a servo motor and the meshing transmission of a worm gear and worm wheel. Three spiral blades, evenly distributed at angles, rotate synchronously with the shaft. Because the diameter of the spiral blades gradually increases from top to bottom, the rotation creates a combined shearing and progressive compression effect on the fruits and vegetables. The smaller diameter blades at the top initially chop larger pieces of fruit and vegetables, while the larger diameter blades at the bottom further refine the material and push it towards the bottom of the crushing tank, ensuring uniform material crushing. Simultaneously, a micro-air pump is activated, introducing gas into the air-blowing anti-sticking tube of the hollow shaft through a supply pipe and rotary joint. Three air outlets at the bottom of the anti-sticking tube, precisely aligned with the tops of the spiral blades, continuously spray air to disperse fruit and vegetable residues adhering to the surface of the spiral blades, preventing material adhesion and ensuring good anti-sticking protection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the cross-section of the crushing tank of this utility model; Figure 3 This is a three-dimensional structural diagram of the cross-section of the drive housing of this utility model; Figure 4This is a three-dimensional structural diagram of the auxiliary filter press mechanism of this utility model; Figure 5 This is a three-dimensional structural diagram of the anti-adhesive pressure plate of this utility model in an explosive state.

[0017] The following are the labels in the attached diagram: 1. Support frame; 2. Crushing tank; 3. Slanted downward feeding port; 4. Drive housing; 5. Auxiliary filter press mechanism; 501. Crusher collection drawer; 502. Anti-sticking filter screen; 503. Filter press shell; 504. Air compressor; 505. Air release valve; 506. Air inflation fitting; 507. Anti-sticking pressure plate; 508. Snake-shaped airbag tube; 509. Fiberglass reinforced silicone connecting plate; 510. Slanted guide plate; 6. Juice collection bottle; 7. Spiral blade; 8. Air blowing anti-sticking tube; 9. Hollow rotating shaft; 10. Rotary joint; 11. Supply fitting; 12. Miniature air pump; 13. Worm gear; 14. Worm; 15. Servo motor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5 The present invention provides a crushing device for fruit and vegetable juicing with auxiliary pressure filtration, including a support frame 1.

[0020] Reference Figures 1-5 The top of the support frame 1 is fixed with a crushing tank 2, and a hollow rotating shaft 9 is movably connected to the middle position inside the crushing tank 2. Spiral blades 7 are evenly distributed on the hollow rotating shaft 9, and an air blowing anti-sticking tube 8 is fixed to the top of the hollow rotating shaft 9. An auxiliary filter press mechanism 5 is installed at the bottom of the crushing tank 2, and the auxiliary filter press mechanism 5 includes a filter press shell 503 connected to the bottom of the crushing tank 2. Anti-sticking pressure plates 507 are symmetrically slidably connected to both sides inside the filter press shell 503. A serpentine airbag tube 508 is evenly arranged between the inner wall of the anti-sticking plate 507 and the filter press shell 503. A glass fiber reinforced silicone connecting plate 509 is fixed between adjacent serpentine airbag tubes 508. An air compressor 504 is installed on the outer wall of the filter press shell 503. An inflation fitting 506 is connected between the air compressor 504 and the serpentine airbag tube 508. The bottom of the filter press shell 503 is slidably connected to a slag collection drawer 501, and the bottom of the slag collection drawer 501 is provided with an anti-sticking filter screen 502. A miniature air pump 12 is installed on the side of the drive housing 4 away from the servo motor 15, and a filter screen is threadedly connected to the input end of the miniature air pump 12. The output end of the micro air pump 12 is provided with a supply pipe 11, and a rotary joint 10 is provided between the supply pipe 11 and the air blowing anti-sticking pipe 8. The air blowing anti-sticking pipe 8 extends upward through the top of the hollow rotating shaft 9. The bottom of the air blowing anti-sticking pipe 8 is evenly provided with air outlets that match the top of the spiral blade 7. There are 3 air outlets. An air release valve 505 is evenly installed at the end of the air-filling pipe 506 away from the filter press shell 503. A juice collection bottle 6 is threadedly connected to the bottom middle position of the filter press shell 503 below the anti-stick filter screen 502. The top of the anti-sticking pressure plate 507 is provided with an inclined guide plate 510 that matches the crushing tank 2.

[0021] With an external power supply, the crushed fruit and vegetable mixture falls from the bottom of the crushing tank 2 into the filter press shell 503 of the auxiliary filter press mechanism 5. The inclined guide plate 510 guides the material to be evenly distributed in the area between the anti-sticking pressure plates 507. Then, by starting the air compressor 504, compressed air is injected into the serpentine airbag tubes 508 on both sides inside the filter press shell 503 through the air inflator 506. After the serpentine airbag tubes 508 are inflated, they expand and push the anti-sticking pressure plates 507 on both sides to slide synchronously towards the middle, applying uniform pressure to the fruit and vegetable mixture. The juice produced by the squeezing penetrates the anti-sticking filter screen 502 in the residue collection drawer 501 and collects at the bottom of the filter press shell 503, finally flowing into the threaded juice collection bottle 6. Furthermore, the glass fiber reinforced silicone sealant installed between the adjacent serpentine airbag tubes 508 further enhances the juice's properties. The adhesive plate 509 prevents the airbag structure from over-expanding and deforming, ensuring stable pressure transmission. Furthermore, the fiberglass-reinforced silicone plate 509 combines elasticity and strength. When the serpentine airbag tube 508 is inflated, the fiberglass-reinforced silicone plate 509 expands and is stretched and bent, storing elastic potential energy. After filtration is completed, the serpentine airbag tube 508 depressurizes and contracts, and the fiberglass-reinforced silicone plate 509 releases its elastic potential energy, pushing the anti-sticking pressure plate 507 to quickly return to its initial position from the filtration position without the need for additional components such as a return spring. Furthermore, by pulling out the debris collection drawer 501, which is slidably connected to the bottom of the filter press shell 503, it is easy to clean the anti-sticking filter screen 502 inside the debris collection drawer 501 and the filtered fruit and vegetable debris on the anti-sticking filter screen 502.

[0022] Reference Figures 1-3 The top of the crushing tank 2 is provided with a downward-sloping feeding port 3, and the top of the downward-sloping feeding port 3 is threaded with a cover plate. A drive housing 4 is installed on the top of the crushing tank 2, and a servo motor 15 is installed on one side of the drive housing 4. The output end of the servo motor 15 is connected to a worm gear 14, and a worm wheel 13 is meshed on the worm gear 14. The hollow shaft 9 extends upward through the top of the worm wheel 13 and is fixed at the middle position of the worm wheel 13. There are 3 spiral blades 7, and the spiral blades 7 are distributed at equal angles on the hollow rotating shaft 9. The diameter of the spiral blades 7 gradually increases from top to bottom.

[0023] Connect an external power supply, open the threaded cover plate at the top of the downward-sloping feeding port 3, and pre-place the fruits and vegetables to be processed into the downward-sloping feeding port 3. Then close the cover plate to prevent juice from splashing out during the crushing process. Then, start the servo motor 15 on one side of the drive housing 4. The output end of the servo motor 15 drives the worm gear 14 to rotate. The worm gear 14 meshes with the worm wheel 13, which in turn drives the hollow rotating shaft 9, which is fixed in the middle of the worm wheel 13, to rotate at a constant speed in the crushing tank 2. The three spiral blades 7, which are evenly distributed on the hollow rotating shaft 9, rotate synchronously with the hollow rotating shaft 9. Because the diameter of the spiral blades 7 gradually increases from top to bottom, they form a compound crushing effect of shearing and step-by-step extrusion on the fruits and vegetables when rotating. The upper small-diameter blades first pre-crush the large pieces of fruits and vegetables, and the lower large-diameter blades further refine the material and push it to the bottom of the crushing tank 2 to ensure that the material is crushed evenly.

[0024] Simultaneously with crushing, the micro air pump 12 on the other side of the drive housing 4 is activated. The micro air pump 12 draws in clean air filtered by a filter screen, which is then delivered to the rotary joint 10 through the supply pipe 11. The air is then introduced into the air blowing anti-sticking pipe 8 inside the hollow rotating shaft 9 through the three air outlets at the bottom of the air blowing anti-sticking pipe 8 that are precisely aligned with the top of the spiral blade 7. This allows for continuous airflow, which disperses the fruit and vegetable residues adhering to the surface of the spiral blade 7, preventing material adhesion from affecting the crushing efficiency and achieving a good anti-sticking protection effect.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A crushing device for fruit and vegetable juicing with auxiliary pressure filtration, comprising a support frame (1); Its features are: The top of the support frame (1) is fixed with a crushing tank (2), and a hollow rotating shaft (9) is movably connected to the middle position inside the crushing tank (2). Spiral blades (7) are evenly distributed on the hollow rotating shaft (9), and an air blowing anti-sticking tube (8) is fixed to the top of the hollow rotating shaft (9). An auxiliary filter press mechanism (5) is installed at the bottom of the crushing tank (2), and the auxiliary filter press mechanism (5) includes a filter press shell (503) connected to the bottom of the crushing tank (2). Anti-sticking pressure plates (507) are symmetrically slidably connected to both sides inside the filter press shell (503). The anti-sticking plate (507) and the inner wall of the filter press shell (503) are uniformly provided with serpentine airbag tubes (508), and glass fiber reinforced silicone connecting plates (509) are fixed between adjacent serpentine airbag tubes (508). An air compressor (504) is installed on the outer wall of the filter press shell (503), and an inflation fitting (506) is connected between the air compressor (504) and the serpentine airbag tubes (508). The bottom of the filter press shell (503) is slidably connected to a slag collection drawer (501), and the bottom of the slag collection drawer (501) is provided with an anti-sticking filter screen (502).

2. The crushing device for fruit and vegetable juicing with auxiliary pressure filtration as described in claim 1, characterized in that: The top of the crushing tank (2) is provided with a downward feeding port (3), and the top of the downward feeding port (3) is threaded with a cover plate.

3. The crushing device for fruit and vegetable juicing with auxiliary pressure filtration as described in claim 1, characterized in that: The top of the crushing tank (2) is equipped with a drive housing (4), and a servo motor (15) is installed on one side of the drive housing (4).

4. A crushing device for fruit and vegetable juicing with auxiliary pressure filtration as described in claim 3, characterized in that: The output end of the servo motor (15) is connected to a worm (14), and a worm wheel (13) is meshed on the worm (14). The hollow shaft (9) extends upward through the top of the worm wheel (13) and is fixed at the middle position of the worm wheel (13).

5. A crushing device for fruit and vegetable juicing with auxiliary pressure filtration as described in claim 1, characterized in that: There are 3 spiral blades (7), and the spiral blades (7) are distributed at equal angles on the hollow rotating shaft (9). The diameter of the spiral blades (7) gradually increases from top to bottom.

6. A crushing device for fruit and vegetable juicing with auxiliary pressure filtration as described in claim 3, characterized in that: A miniature air pump (12) is installed on the side of the drive housing (4) away from the servo motor (15), and a filter screen is threadedly connected to the input end of the miniature air pump (12).

7. A crushing device for fruit and vegetable juicing with auxiliary pressure filtration as described in claim 6, characterized in that: The output end of the micro air pump (12) is provided with a supply pipe (11), and a rotary joint (10) is provided between the supply pipe (11) and the air blowing anti-stick pipe (8). The air blowing anti-stick pipe (8) extends upward through the top of the hollow rotating shaft (9). The bottom of the air blowing anti-stick pipe (8) is evenly provided with air outlets that match the top of the spiral blade (7). There are 3 air blowing ports.

8. A crushing device for fruit and vegetable juicing with auxiliary pressure filtration as described in claim 1, characterized in that: The air-filling tube (506) is uniformly equipped with an air release valve (505) at the end away from the filter press shell (503), and a juice collection bottle (6) is threadedly connected to the bottom middle position of the filter press shell (503) below the anti-stick filter screen (502).

9. A crushing device for fruit and vegetable juicing with auxiliary pressure filtration as described in claim 1, characterized in that: The top of the anti-sticking plate (507) is provided with an inclined guide plate (510) that matches the crushing tank (2).

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