Juicing screw

Abstract

The application discloses a juicing screw, which comprises a pressing part, a plurality of spiral ribs are arranged on the outer circumferential surface of the pressing part, a spindle-shaped boost rib is arranged between two adjacent spiral ribs, the two ends of the boost rib are arc-shaped and the width of the boost rib is smaller than the width of the middle part, and the boost rib is symmetrically arranged between the two adjacent spiral ribs in the direction of the interval width of the spiral ribs. According to the application, the outer circumferential surface of the juicing screw is provided with a plurality of spiral ribs, a spindle-shaped boost rib is arranged between two adjacent spiral ribs, the boost rib applies an additional radial force to the material through the gradually changed curved surface profile, the material is forced to move forward, the backflow or stagnation is reduced, the juicing efficiency is improved, the large material is divided through the shunting effect, the large material is guided to enter the extrusion area uniformly, and the risk of material blockage is reduced.

Description

Technical Field

[0001] This application relates to the field of juicing equipment technology, specifically to a juicing screw. Background Technology

[0002] Juicing equipment extracts juice by squeezing fruits, vegetables, and other materials using a juicing screw. The outer circumference of the juicing screw has multiple spiral ribs to achieve the squeezing effect on the materials.

[0003] The spiral ribs of existing juicing screws typically have a spiral propulsion angle set at 10 to 20 degrees, with the aim of increasing the squeezing pressure and improving the juice yield. However, due to the small spiral propulsion angle, the juicing efficiency is relatively low. Utility Model Content

[0004] In view of this, the present invention provides a juicing screw to solve the problem that the existing juicing screws have a small spiral propulsion angle and low juicing efficiency.

[0005] The juicing screw provided by this utility model includes a pressing part. Multiple spiral ribs are provided on the outer circumference of the pressing part. A spindle-shaped boosting rib is provided between two adjacent spiral ribs. The two ends of the boosting rib are arc-shaped and the width is smaller than the width of the middle part. They are symmetrically arranged between two adjacent spiral ribs in the direction of the spacing width of the spiral ribs.

[0006] Based on the above technical solution, this application provides a spindle-shaped booster rib between two adjacent spiral ribs to optimize the efficiency of material conveying, extrusion and juice extraction.

[0007] In the above technical solution, preferably, the spiral propulsion angle of the spiral rib is set to 25 to 35 degrees. By increasing the spiral propulsion angle, the juicing efficiency is improved.

[0008] In the above technical solution, preferably, the upper part of the pressing part is provided with a cutting part, the pressing part and the cutting part are connected by a shearing part, the shearing part is in the shape of a frustum of a cone with a smaller upper part and a larger lower part, and a plurality of lower shearing blades are evenly distributed along the circumferential side of the frustum of the shearing part, and the lower shearing blades extend radially along the shearing part.

[0009] In the above technical solution, preferably, the cutting part is arranged in a sheet-like spiral around the cutting shaft and smoothly transitions to the outer circumferential surface of the shearing part. The cutting shaft is eccentrically arranged with the pressing part, and the axis of the cutting shaft is inclined with the axis of the pressing part.

[0010] In the above technical solution, a connecting shaft is provided on the bottom surface of the pressing part, and a spiral groove for matching the drive shaft of the connecting shaft is provided on the outer circumferential surface of the connecting shaft.

[0011] In the above technical solution, preferably, the height of the shearing part is 1 / 5 to 1 / 6 of the height of the pressing part, the outer contour lines connecting the cutting part, the shearing part and the pressing part are in the form of broken lines, and the outer contour line of the cutting part is inclined inward from top to bottom, the outer contour line of the shearing part is inclined outward from top to bottom, and the outer contour line of the pressing part is inclined outward from top to bottom.

[0012] As can be seen from the above technical solution, the juicing screw provided by this utility model solves the problem of low juicing efficiency in the prior art. Compared with the prior art, this utility model has the following beneficial effects:

[0013] The outer circumference of the juicing screw is provided with multiple spiral ribs, and a spindle-shaped booster rib is provided between two adjacent spiral ribs. The booster rib applies an additional radial force to the material through its gradually curved surface profile, forcibly pushing the material forward, reducing backflow or stagnation, and improving juicing efficiency; and divides large pieces of material through diversion, guiding them to enter the extrusion zone evenly, reducing the risk of material blockage. Attached Figure Description

[0014] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the juicing device provided by the present invention;

[0016] Figure 2 for Figure 1 Cross-sectional view of the juicer with its base concealed;

[0017] Figure 3 This is an exploded structural diagram of the filter component in this invention;

[0018] Figure 4 This is a schematic diagram of the feed cylinder from a bottom view in this invention;

[0019] Figure 5 This is a schematic diagram of the inner cylinder in this invention;

[0020] Figure 6 This is a schematic diagram of the juicing screw in this invention;

[0021] Figure 7 for Figure 5 The side view of the juicing screw shown;

[0022] Figure 8This is a schematic diagram of a partial cross-section of the juicing device provided by the present invention;

[0023] Figure 9 This is a partial cross-sectional view of the inner cylinder in this invention;

[0024] Figure 10 for Figure 8 Enlarged part A in the image;

[0025] Figure 11 This is a schematic diagram of the base in this invention;

[0026] Figure 12 for Figure 11 The diagram shows the assembly of the drive sleeve in the base.

[0027] Figure 13 This is a schematic diagram of the driving sleeve in this invention;

[0028] Figure 14 This is a schematic diagram of the fit between the drive shaft and the drive sleeve in this invention.

[0029] Figures 1-14 The correspondence between the parts is as follows:

[0030] Juicing cylinder 100, feeding cylinder 200, juicing screw 300, filter assembly 400, base 500;

[0031] Juice outlet 101, slag outlet 102, hollow part 103, handle 104;

[0032] Cover 210, feed inlet 211;

[0033] Outer cylinder 410, inner cylinder 420, frustoconical connecting part 430;

[0034] Outer cylinder slot 411, outer cylinder rib 412, retaining ring 413, limiting groove 414, boss 415, arc-shaped part 416;

[0035] Inner cylinder rib 421, upper connecting ring 422, lower connecting ring 423, limiting lug 424, first ramp 425, second ramp 426, reinforcing rib 427, upper shearing blade 428, shearing blade reinforcing rib 429.

[0036] Buckle 431;

[0037] The pressing section 310, the cutting section 320, the shearing section 330, and the connecting shaft 340 are included.

[0038] Spiral rib 311, booster rib 312;

[0039] Cutting shaft 321, cutting edge 322;

[0040] Lower shear blade 331;

[0041] Drive shaft 510, drive sleeve 520, spiral rib 521, triangular rib 522. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] To provide a clearer explanation and description of the technical solution and implementation of the present invention, several preferred specific embodiments for implementing the technical solution of the present invention are described below.

[0044] It should be noted that the directional terms such as "inner" and "outer", "front" and "back" and "left" and "right" in this article are based on the product's usage status. Obviously, the use of these directional terms does not limit the scope of protection of this solution.

[0045] like Figure 1 , Figure 2 As shown, the juicing device provided by the present invention includes a juicing cylinder 100 and a feeding cylinder 200 detachably disposed on the upper end of the juicing cylinder 100. The upper end of the feeding cylinder 200 is provided with a cover 210, and the center of the cover 210 is provided with a feeding port 211, through which fruits, vegetables and other materials can be fed into the feeding cylinder 200.

[0046] A juicing screw 300 is installed inside the juicing cylinder 100, and a filter assembly 400 is installed inside the juicing cylinder 100 and arranged around the juicing screw 300. The juicing cylinder 100 is mounted on a base 500, and a drive mechanism is installed inside the base 500. The drive mechanism is coupled to the juicing screw 300 to drive the juicing screw 300 to rotate and squeeze the material. The filter assembly 400 is used to separate the juice from the residue. The juice flows out from the juice outlet 101 on the juicing cylinder 100, and the residue is discharged from the residue discharge outlet 102 on the juicing cylinder 100.

[0047] The outer wall of the juicing cylinder 100 has a perforated section 103 that runs through the outer wall, thus forming a hidden handle 104. This design reduces the space occupied and makes it convenient to place and store.

[0048] like Figure 3As shown, the filter assembly 400 includes a cylindrical outer cylinder 410 and an inner cylinder 420, with the inner cylinder 420 coupled inside the outer cylinder 410. The outer cylinder 410 is integrally formed in the lower part of the feed cylinder 200. Specifically, the diameter of the outer cylinder 410 is smaller than the diameter of the feed cylinder 200, and the upper end of the outer cylinder 410 is connected to the lower end of the outer cylinder 410 through a frustoconical connecting part 430. Multiple snap fasteners 431 are also provided on the outer surface of the upper end of the frustoconical connecting part 430, and these snap fasteners 431 are evenly distributed circumferentially. The inner wall of the juicing cylinder 100 has slots that fit the snap fasteners 431. The outer cylinder 410 is rotatably engaged with the inner wall of the juicing cylinder 100 through the snap fasteners 431 and the slots, forming a detachable connection structure. The rotatable engagement structure is a mature existing design and will not be described in detail here.

[0049] The outer cylinder 410 includes a plurality of outer cylinder slots 411 evenly distributed along the circumference. The outer cylinder slots 411 extend along the axial direction of the outer cylinder 410. An outer cylinder rib 412 is formed between adjacent outer cylinder slots 411. The lower outer surface of the outer cylinder rib 412 is connected by a fixing ring 413.

[0050] The inner cylinder 420 includes a plurality of inner cylinder ribs 421 evenly distributed along the circumference. The inner cylinder ribs 421 extend along the axial direction of the inner cylinder 420. The upper end of the inner cylinder ribs 421 is connected and fixed by an upper connecting ring 422, and the lower end of the inner cylinder ribs 421 is connected and fixed by a lower connecting ring 423. The inner cylinder ribs 421 are adapted to the outer cylinder slots 411 on the outer cylinder 410.

[0051] The inner cylinder rib 421 is inserted into the outer cylinder slot 411 from bottom to top, so that the inner cylinder 420 is coupled into the outer cylinder 410. The gap between the inner cylinder rib 421 and the side wall of the outer cylinder slot 411 forms a filter hole through which the juice passes.

[0052] like Figure 3 , Figure 4 , Figure 5 As shown, the bottom surface of the fixing ring 413 of the outer cylinder 410 is provided with at least two limiting grooves 414 along the circumferential direction. The outer side surface of the lower connecting ring 423 of the inner cylinder 420 is provided with a limiting lug 424 that matches the limiting groove 414. The limiting lug 424 is embedded in the limiting groove 414 and is connected by an interference fit between the side walls, thereby realizing the circumferential limiting of the inner cylinder 420 and the outer cylinder 410.

[0053] The outer wall of the fixing ring 413 corresponding to the limiting groove 414 protrudes outward to form a boss 415. The outer side of the boss 415 has a concave arc-shaped part 416, which can be used to press down and remove the inner cylinder 420, making the operation convenient.

[0054] This application solution changes the traditional design where the filter assembly is independently installed inside the juicing cylinder. The traditional design requires manual disassembly of the filter assembly by reaching into the juicing cylinder, which is inconvenient and poses a risk of cuts. In this application solution, the outer cylinder 410 of the filter assembly 400 is integrally formed into the lower part of the feed cylinder 200. The filter assembly 400 can be disassembled along with the feed cylinder 200; that is, when the feed cylinder 200 is pulled upwards, the filter assembly 400 can be pulled out simultaneously, eliminating the need to reach into the juicing cylinder 100 to disassemble the filter assembly. This makes disassembly and cleaning convenient and quick.

[0055] In this application, the inner wall of the outer cylinder 410 is a frustum-shaped cone, wider at the bottom and narrower at the top. The outer wall of the inner cylinder 420 is adapted to the inner wall of the outer cylinder 410. The upper width of the outer cylinder slot 411 is smaller than the lower width, forming an isosceles trapezoid in its projected shape. This ensures a tight fit between the outer cylinder 410 and the inner cylinder 420, improving the fineness of the juice and the juice yield. The thickness of the outer cylinder ribs 412 gradually increases from bottom to top, thus forming a frustum-shaped inner wall structure.

[0056] The upper end of the inner cylinder rib 421 is provided with a first ramp 425, and the outer sides of the inner cylinder rib 421 are respectively provided with second ramps 426, so as to facilitate the inner cylinder rib 421 to be inserted into the outer cylinder slot 411 and achieve automatic centering.

[0057] The inner side of the inner cylinder rib 421 is provided with reinforcing ribs 427, which improves the strength of the outer cylinder rib 412 and extends its service life.

[0058] like Figure 6 , Figure 7 As shown, the juicing screw 300 in this application includes a pressing section 310 and a cutting section 320, which are connected by a shearing section 330. Both the pressing section 310 and the shearing section 330 are truncated cones, with the top smaller than the bottom.

[0059] The pressing section 310 has multiple spiral ribs 311 on the side of the truncated cone.

[0060] The cutting section 320 is arranged in a sheet-like spiral around the cutting shaft 321 and smoothly transitions to the outer circumferential surface of the shearing section 330. Multiple blades 322 are spaced apart on the outer surface of the cutting section 320. Large pieces of material such as apples are cut into smaller pieces by the blades 322 and fall into the pressing section 310.

[0061] Multiple lower shearing blades 331 are evenly distributed along the circumferential direction on the outer circumferential surface of the shearing part 330, and the lower shearing blades 331 extend radially along the shearing part 330.

[0062] like Figure 8 , Figure 9 , Figure 10As shown, the lower inner wall surface of the upper connecting ring 422 of the inner cylinder 420 is an inclined surface. Multiple upper shearing blades 428 are evenly distributed along the circumference on the inclined surface. The upper shearing blades 428 extend radially and match the lower shearing blades 331, which are used to cut coarse fibrous materials such as celery.

[0063] The inner end of the upper shear blade 428 protrudes from the inner wall surface of the upper connecting ring 422 and extends upward to form a cutting blade reinforcing rib 429 to improve the strength of the upper shear blade 428.

[0064] In this application, the cutting shaft 321 is eccentrically positioned relative to the pressing section 310, and the axis O2 of the cutting shaft 321 is inclined relative to the axis O1 of the pressing section 310. As a result, the cutting shaft 321 generates downward pressure during rotation, propelling the material into the pressing section 310 and improving pressing efficiency.

[0065] The height of the shearing section 330 is 1 / 5 to 1 / 6 of the height of the pressing section 310, and the height of the cutting section 320 is 0.8 to 1.2 times that of the pressing section 310. The outer contour lines connecting the cutting section 320, the shearing section 330, and the pressing section 310 are splayed. Specifically, the outer contour line of the cutting section 320 slopes inward from top to bottom, the outer contour line of the shearing section 330 slopes outward from top to bottom, and the outer contour line of the pressing section 310 slopes outward from top to bottom, as shown below. Figure 7 As shown by the dashed line.

[0066] This application optimizes the overall outer contour shape of the juicing screw 300, allowing the material to be quickly pushed into the pressing section after being cut into pieces and then gradually pressed, thus improving juicing efficiency and juice yield. During the pressing process, the pressing section 310, shearing section 330, and cutting section 320 all generate downward pressure during material extrusion, causing the juicing screw 300 to press tightly against the drive shaft of the drive device, reducing the noise generated by the vertical movement of the juicing screw 300 and the clearance between the parts.

[0067] In conventional designs, the spiral propulsion angle of the juicing screw 300 is typically 10 to 20 degrees to meet the pressing requirements. In this application, the spiral propulsion angle β of the spiral rib 311 is set to 25 to 35 degrees. This increased spiral propulsion angle accelerates the propulsion speed and improves juicing efficiency.

[0068] To further improve the juice yield, the present application also provides spindle-shaped booster ribs 312 between two adjacent spiral ribs 311. The booster ribs 312 have arc-shaped ends and a width smaller than the middle width (thick in the middle and thin at both ends) to balance the pushing and squeezing. Each booster rib 312 is symmetrically arranged between two adjacent spiral ribs 311, and the center of each booster rib 312 is at the same height from the bottom surface of the pressing section 310.

[0069] The booster rib 312 optimizes the efficiency of material conveying, extrusion, and juice extraction. Specifically, it offers the following advantages:

[0070] First, the booster ribs apply an additional radial force to the material through their gradually curved surface profile, forcing the material to move forward and reducing backflow or stagnation.

[0071] Second, the booster ribs form a secondary compression zone between adjacent spiral ribs, extending the time the material is under pressure and allowing the juice to be released more fully.

[0072] Third, the spindle-shaped design allows the tip to contact the material first, gradually increasing the pressure to avoid blockage caused by sudden compression.

[0073] Fourth, the edges of the booster ribs shear and tear fibers during rotation, disrupting cell wall structure, releasing more juice, and reducing the water content of residue.

[0074] Fifth, the spindle-shaped booster ribs divide large pieces of material through a diversion effect and guide them evenly into the extrusion zone, reducing the risk of material blockage.

[0075] In this application, the height of the booster rib is approximately 50% to 70% of the height of the spiral rib. If it is too high, it will increase drag; if it is too low, the effect will be insufficient.

[0076] like Figure 7 As shown, a connecting shaft 340 is provided on the bottom surface of the pressing section 310, and a spiral groove is provided on the outer circumferential surface of the connecting shaft 340, which is matched and connected to the drive shaft of the driving device.

[0077] Specifically, such as Figure 11 , Figure 12 As shown, the drive mechanism inside the base 500 includes a motor and a reducer that is matched and connected to the motor. The drive shaft 510 of the reducer extends out of the top surface of the base 500. A drive sleeve 520 is provided on the drive shaft 510. A spiral rib 521 is provided on the outer circumferential surface of the drive sleeve 520. The spiral rib 521 is adapted to the spiral groove on the connecting shaft 340, thereby driving the juicing screw 300 to rotate through the motor.

[0078] In this application, the drive sleeve 520 and the connecting shaft 340 of the juicing screw 300 are connected by a spiral structure. During operation, the spiral structure tightens the connection between the connecting shaft 340 and the drive sleeve 520, reducing operating noise. However, this design also makes disassembling the connecting shaft 340 and the drive sleeve 520 (juicing cylinder 100 and base 500) difficult. Therefore, this application optimizes the connection structure between the drive shaft 510 and the drive sleeve 520.

[0079] like Figure 12 , Figure 13 , Figure 14As shown, the drive shaft 510 adopts a double-flat shaft end structure, meaning that the two sides of the shaft end of the drive shaft 510 are symmetrically milled flat, and it consists of a connecting post and arc-shaped portions formed on two opposite surfaces of the connecting post. The bottom surface of the drive sleeve 520 has a connecting shaft hole, and two triangular protrusions 522 are symmetrically arranged on the inner wall of the connecting shaft hole. The distance between the two triangular protrusions 522 is adapted to the thickness of the connecting post of the drive shaft 510. The drive shaft 510 is inserted into the connecting shaft hole, and the arc-shaped portion of the drive shaft 510 is adapted to the inner wall surface of the connecting shaft hole. The triangular protrusions 522 are isosceles triangles.

[0080] The connection structure between the drive shaft 510 and the drive sleeve 520 provided in this application has a free movement angle of W2. During normal operation, the drive shaft 510 is in close contact with the first sidewall of the two triangular protrusions 52, driving the drive sleeve 520 to rotate. To solve the problem of difficult disassembly of the drive sleeve 520 and the connecting shaft 340 of the juicing screw 300 after operation, the solution in this application first controls the motor to reverse when the machine stops. Due to the free movement angle of W2, the drive shaft 510 can disengage from the first sidewall of the two triangular protrusions 52 that it is in close contact with during operation, rotate to be in contact with the second sidewall of the two triangular protrusions 52, and drive the drive sleeve 520 to reverse, so that the spiral structure between the drive shaft 510 and the drive sleeve 520 is loosened, thereby making it easy to remove the juicing cylinder 100 from the base 500.

[0081] When stopping the machine, first control the motor to reverse, which can be achieved using a program or double switch technology.

[0082] The juicing device in this application also has the following advantages:

[0083] First, the juicing screw includes a pressing section and a cutting section, which are connected by a shearing section. Multiple lower shearing blades are evenly distributed circumferentially on the side of the cone-shaped shearing section. The lower shearing blades extend radially along the shearing section and cooperate with the upper shearing blades on the filter assembly to laterally cut the coarse fibers in materials such as celery, thereby improving the taste of such coarse fiber fruit and vegetable juices.

[0084] Secondly, the spiral propulsion angle of the spiral rib is set to 25 to 35 degrees, and a spindle-shaped booster rib is provided between two adjacent spiral ribs. The two ends of the booster rib are arc-shaped and the width is smaller than the width in the middle. They are symmetrically arranged between two adjacent spiral ribs in the direction of the spiral rib spacing width. The booster rib is used to optimize the material conveying, extrusion and juice extraction efficiency.

[0085] Finally, it should be noted that the terms "comprising," "including," or any other variations thereof as used herein are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a…" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0086] This invention is not limited to the above-described preferred embodiments. Anyone should know that any structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention.

Claims

1. A juicing screw, comprising a pressing section, wherein the outer circumferential surface of the pressing section is provided with a plurality of spiral ribs, characterized in that, A spindle-shaped booster rib is provided between two adjacent spiral ribs. The booster ribs are arc-shaped at both ends and have a width smaller than the width in the middle. They are symmetrically arranged between two adjacent spiral ribs in the direction of the spiral rib spacing width.

2. The juicing screw according to claim 1, characterized in that, The spiral propulsion angle of the spiral rib is set to 25 to 35 degrees.

3. The juicing screw according to claim 1, characterized in that, The upper part of the pressing part is provided with a cutting part. The pressing part and the cutting part are connected by a shearing part. The shearing part is in the shape of a truncated cone with a smaller upper part and a larger lower part. Multiple lower shearing blades are evenly distributed along the circumferential side of the truncated cone of the shearing part. The lower shearing blades extend radially along the shearing part.

4. The juicing screw according to claim 3, characterized in that, The cutting section is arranged in a sheet-like spiral around the cutting shaft and smoothly transitions to the outer circumferential surface of the shearing section. The cutting shaft is eccentrically arranged with respect to the pressing section, and the axis of the cutting shaft is inclined to the axis of the pressing section.

5. The juicing screw according to claim 1, characterized in that, A connecting shaft is provided on the bottom surface of the pressing section, and a spiral groove for matching the drive shaft of the connecting shaft is provided on the outer circumferential surface of the connecting shaft.

6. The juicing screw according to claim 3, characterized in that, The height of the shearing section is 1 / 5 to 1 / 6 of the height of the pressing section. The outer contour lines connecting the cutting section, shearing section and pressing section are in a detached shape. The outer contour line of the cutting section slopes inward from top to bottom, the outer contour line of the shearing section slopes outward from top to bottom, and the outer contour line of the pressing section slopes outward from top to bottom.

Images