Stock bin mechanism and hand-cranking grinding machine
By designing the rocker arm and transmission system in the hopper mechanism, the problem of the hand-cranked grinder drive component being difficult to apply force was solved, enabling vertical rotational movements that are easy to apply arm force, reducing muscle fatigue, and improving the user experience.
Patent Information
- Application Number
- CN202423148454.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The drive components of existing hand-cranked grinders are not easy to generate force when rotating, which leads to muscle fatigue for consumers and inconvenience in use.
A hopper mechanism was designed, including a first housing, a rotating shaft, a first transmission component, a second transmission component, and a rocker arm. The second transmission component drives the first transmission component to rotate by rotating the rocker arm, and the first transmission component drives the rotating shaft to rotate. The rocker arm rotates in a vertical plane, which simplifies hand movements and facilitates arm exertion.
It allows consumers to move a wider range of motion in the vertical plane, making it easier to exert force with the arms, reducing muscle fatigue, and is simple in structure and easy to use.
Smart Images
Figure CN223888147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hand-cranked grinding machine technology, and in particular to a hopper mechanism and a hand-cranked grinding machine. Background Technology
[0002] Hand-cranked grinders typically include a hopper mechanism and a blade assembly mounted at the lower end of the hopper mechanism. The hopper mechanism includes a first housing with a cover rotatably mounted on it. A rotatable blade disc is housed within the blade assembly. A shaft passes through the first housing, with its two ends connected to the cover and blade disc, respectively. After coffee beans or other ingredients are added to the hopper mechanism, they enter the blade assembly through a feeding channel at the lower end of the first housing. The hand-cranked grinder is then held upright in the hand, and the drive mechanism is manually rotated from the top. The drive mechanism rotates the cover, which in turn rotates the blade disc via the shaft, cutting the ingredients. This rotation mechanism requires significant lateral hand movement, making it difficult to exert force and potentially causing muscle fatigue and inconvenience for the user.
[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model discloses a hopper mechanism and a hand-cranked grinder to solve the problem of difficulty in applying force when rotating the drive component of the hand-cranked grinder.
[0005] The technical solution adopted in this utility model is as follows:
[0006] A hopper mechanism, comprising: a first housing, which is a hollow structure with an upward opening; a rotating shaft, which rotatably passes through the lower end of the first housing; a first transmission member, whose lower end is sleeved and fixed to the outside of the rotating shaft, and whose upper end is connected to a locking hole at the upper end of the rotating shaft; a second transmission member, which rotatably passes through the side of the first housing, is arranged radially along the rotating shaft, and whose first end is located inside the first housing and engages with the upper end of the first transmission member; and a rocker arm, whose first end is engaged with the second end of the second transmission member, and whose second end rotates around the axis of the second transmission member outside the first housing.
[0007] A further technical solution is that the rotating shaft includes: a milled flat screw with parallel first flat surfaces milled on both sides, disposed at the upper end of the rotating shaft; a first bearing with its outer ring snapped onto the lower end of the first housing and its inner ring sleeved and fixed to the outside of the rotating shaft; a flange disposed on the outside of the rotating shaft, corresponding to the bottom of the inner side of the first housing; and a first retaining ring disposed on the outside of the rotating shaft, corresponding to the lower end of the first bearing; wherein the outer diameters of the first retaining ring and the flange are both larger than the outer diameter of the rotating shaft, restricting the axial movement of the rotating shaft relative to the bottom of the first housing; the first transmission component includes: a first helical gear sleeved on the outside of the milled flat screw; a first cylinder disposed at the lower end of the first helical gear and sleeved on the outside of the rotating shaft; an elastic element with its upper end connected to the lower end of the first cylinder and its lower end connected to the bottom of the inner side of the first housing; and a nut screwed onto the milled flat screw, abutting against the upper end of the first helical gear, and causing the lower end of the first cylinder to press against the elastic element.
[0008] A further technical solution is that the first housing includes: a material discharge channel, which is opened at the lower end of the first housing and communicates with the interior of the first housing; the hopper mechanism also includes a material discharge frame, which includes: a second cylinder, which is sleeved on the outside of the rotating shaft and engages with the upper end of the flange; a plate, which has several pieces and is arranged in a ring on the outside of the second cylinder; and a soft rubber body, which is disposed at the lower end of the plate and abuts against the bottom of the inner side of the first housing; wherein, the lower end of the elastic element is connected to the upper end of the second cylinder.
[0009] A further technical solution is that the first housing includes: a first groove, radially disposed on the side of the first housing along the rotating shaft, with a position corresponding to the inner side of the first housing; the second transmission member is coaxially disposed with the first groove, including: a second helical gear, with a position corresponding to the first end of the first groove; a second shaft, with its first end passing through the first groove and connecting to the second end of the second helical gear; a stepped portion, disposed on the outside of the second shaft, with a position corresponding to the area between the first end of the first groove and the second end of the second helical gear; a second bearing, with its outer ring inserted into the first groove and its inner ring sleeved and fixed to the outside of the second shaft; and a second snap ring, snapped on the outside of the second shaft, with a position corresponding to the second end of the second bearing; wherein the outer diameters of the second snap ring and the stepped portion are both larger than the outer diameter of the second shaft, restricting the axial movement of the second transmission member relative to the side of the first housing.
[0010] A further technical solution is that the rocker arm includes: a fixing part, which is a hollow structure with an opening at the first end, arranged axially along the second shaft, with its outer side inserted into the first groove, and the second shaft inserted into the inner side of the fixing part; a handle, which is arranged parallel to the fixing part; and a connecting part, which is vertically connected between the second end of the handle and the outer side of the fixing part.
[0011] A further technical solution is that the hopper mechanism further includes a cover, which is snapped onto the upper end of the first housing.
[0012] A further technical solution is that the hopper mechanism further includes: a fixed plate, sleeved on the outside of the rotating shaft, positioned corresponding to the lower end of the first retaining ring; the fixed plate includes: a fourth through hole, formed on the fixed plate; wherein, when the fixed plate is rotated to the first position, the fourth through hole communicates with the material discharge channel; when the fixed plate is rotated to the second position, the fixed plate closes the material discharge channel.
[0013] A further technical solution is that the rotating shaft includes: a third retaining ring, which is engaged on the outside of the rotating shaft and positioned corresponding to the lower end of the fixed disk; wherein the outer diameters of the third retaining ring and the first retaining ring are both larger than the outer diameter of the rotating shaft, restricting the axial movement of the fixed disk relative to the bottom of the first housing; the first housing includes: a second groove, disposed at the lower end of the first housing; and two first annular grooves, respectively opened at the lower ends of both sides of the second groove; the fixed disk includes: a sixth extension, disposed on the fixed disk and sliding within the second groove; and two hooks, respectively disposed on both sides of the upper end of the fixed disk and sliding within the first annular groove; wherein, when the fixed disk is rotated to the first position, the hooks engage with the first annular grooves.
[0014] A further technical solution is that the hopper mechanism includes a clutch, which is fixedly disposed at the lower end of the rotating shaft.
[0015] This utility model also discloses a hand-cranked grinding machine, which includes: a cutting tool assembly, comprising: a second housing, which is a hollow structure, with a feed inlet at the upper end communicating with the interior of the second housing; a cutting disc, rotatably disposed within the second housing; and a hopper mechanism, as described above, wherein the first housing is disposed at the upper end of the second housing, and the fixed disc extends into the second housing; wherein the lower end of the clutch engages with the upper end of the cutting disc; rotating the fixed disc to a first position, the outer side of the fixed disc engages with the inner wall of the second housing, and the fourth through hole communicates with the feed inlet; rotating the fixed disc to a second position, the fixed disc disengages from the inner wall of the second housing, and the fixed disc closes the feed inlet.
[0016] The beneficial effects of this utility model embodiment are as follows:
[0017] (I) The hopper mechanism of this utility model includes a first housing, a first transmission component, a second transmission component, and a rocker arm. The second transmission component is driven to rotate by rotating the rocker arm, which in turn drives the first transmission component to rotate. The first transmission component drives the rotating shaft to rotate. Since the second transmission component is arranged radially along the rotating shaft, the second end of the rocker arm rotates around the axis of the second transmission component outside the first housing, allowing the rocker arm to rotate in a vertical plane. This allows the consumer's hand to make more vertical movements, making it easier to exert force with the arm. The structure is simple and easy to use.
[0018] (ii) Furthermore, the rotation of the shaft drives the second cylinder, plate and soft rubber body of the feeding rack to rotate. The plate pushes the food in the first shell into the tool assembly through the feeding channel. At the same time, the soft rubber body sweeps the food residue and powder into the tool assembly through the feeding channel, so that there is no residue on the bottom of the inner side of the hopper mechanism, which is easy to clean.
[0019] (III) Furthermore, when feeding is required, the fixed plate is rotated to the first position, and the fourth through hole connects with the feeding channel. When not in operation, the fixed plate is rotated to the second position, the fixed plate closes the feeding channel, and the fixed plate and the cover seal the first shell together, thus preserving the food inside the first shell. The structure is simple and easy to use.
[0020] (iv) Further, when the hand-cranked grinder is needed, rotate the fixing plate clockwise to the first position. The upper end of the fixing plate engages with the first housing, and the outer side of the fixing plate engages with the inner wall of the second housing, thus assembling the hand-cranked grinder. At this time, the feeding channel, the fourth through hole, and the feed inlet are connected, and the food enters the second housing and is cut by the blade. When the hand-cranked grinder is not needed, rotate the fixing plate counterclockwise to the second position. The fixing plate simultaneously disengages from both the second and first housings. At this time, the fixing plate closes the feed inlet, and the fixing plate and the cover together seal the first housing, thus preserving the food inside the first and second housings. The hand-cranked grinder of this embodiment has a simple structure, is easy to install and disassemble, and is convenient for consumers to use. Attached Figure Description
[0021] Figure 1 This is a cross-sectional view of the hopper mechanism of this utility model.
[0022] Figure 2 This is an isometric view of the rotating shaft of this utility model.
[0023] Figure 3 for Figure 1 Enlarged view at point A.
[0024] Figure 4 This is an exploded view of the second transmission component of this utility model.
[0025] Figure 5 This is an isometric view of the rocker arm of this utility model.
[0026] Figure 6 This is a partial structural diagram of the hopper mechanism of this utility model.
[0027] Figure 7 This is an isometric view of the material unloading rack of this utility model.
[0028] Figure 8 This is an isometric view of the fixed disk of this utility model.
[0029] Figure 9 An isometric view of the hopper mechanism of this utility model when the unloading channel is opened.
[0030] Figure 10 This is an isometric view of the hopper mechanism of this utility model when the material discharge channel is closed.
[0031] Figure 11 This is a view of the axis of the tool assembly of this utility model.
[0032] Figure 12 This is a cross-sectional view of the hand-cranked grinder of this utility model.
[0033] In the picture:
[0034] 1. First housing; 11. First groove; 111. Second through hole; 12. Feeding channel; 13. Pipe; 14. Second sealing ring; 15. Second extension; 16. Third extension; 17. First annular groove; 171. First slot; 172. Second slot; 18. Fourth extension; 19. First through hole; 2. Cover; 21. First extension; 22. First sealing ring; 3. First transmission component; 31. First helical gear; 32. First cylinder; 33. Nut; 34. Elastic component; 4. Rocker arm; 41. Fixing part; 42. Connecting part; 43. Handle; 5. Feeding rack; 51. Second cylinder; 52. Plate; 53. Soft rubber body; 6. Second transmission component; 61. Second helical gear; 62. Second shaft; 63. Second bearing; 64. Stepped portion; 65. Second snap ring; 7. Rotating shaft; 71. Milling screw; 711. First flat surface; 72. First snap ring; 73. Third snap ring; 74. First bearing; 75. Flange; 751. Second flat surface; 76. Clutch; 8. Fixed plate; 81. Third through hole; 82. Fourth through hole; 83. Protrusion; 84. Sixth extension; 85. Hook; 86. Fifth extension; 9. Tool assembly; 91. Second housing; 92. Second annular groove; 921. Third slot; 922. Fourth slot; 93. Tool disc; 94. Feed port. Detailed Implementation
[0035] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0037] First embodiment:
[0038] This embodiment discloses a silo mechanism.
[0039] Figure 1 This is a cross-sectional view of the hopper mechanism of this utility model. Figure 1 As shown, the hopper mechanism includes a first housing 1, a rotating shaft 7, a first transmission component 3, a second transmission component 6, and a rocker arm 4.
[0040] Figure 2 This is an isometric view of the rotating shaft of this utility model.
[0041] Figure 3 for Figure 1 Enlarge the image at point A. (See image below.) Figure 2 and Figure 3 As shown, the first housing 1 is a hollow structure with its opening facing upwards. A rotating shaft 7 rotatably passes through the lower end of the first housing 1. Exemplarily, the first housing 1 is a cylindrical body with an open upper end, and the rotating shaft 7 includes a milled flat screw 71, a first bearing 74, a flange 75, and a first retaining ring 72. The rotating shaft 7 vertically passes through a first through hole 19 at the lower end of the first housing 1 and is clearance-fitted with the first through hole 19. The milled flat screw 71 has parallel first flat surfaces 711 milled on both sides and is disposed at the upper end of the rotating shaft 7. The outer ring of the first bearing 74 is engaged with the lower end of the first housing 1, and the inner ring is sleeved and fixed to the outside of the rotating shaft 7. Specifically, a fourth extension 18 extends from the lower end of the first housing 1, and the outer ring of the first bearing 74 is engaged within the fourth extension 18. The flange 75 is disposed on the outside of the rotating shaft 7, corresponding to the inner bottom of the first housing 1. The first retaining ring 72 is engaged on the outside of the rotating shaft 7, corresponding to the lower end of the first bearing 74. The outer diameters of the first retaining ring 72 and the flange 75 are both larger than the outer diameter of the rotating shaft 7, thus restricting the axial movement of the rotating shaft 7 relative to the bottom of the first housing 1.
[0042] like Figure 2 and Figure 3 As shown, the lower end of the first transmission component 3 is sleeved and fixed to the outside of the rotating shaft 7, and the upper end is connected to the upper end of the rotating shaft 7 via a retaining hole. For example, the first transmission component 3 is coaxially arranged with the rotating shaft 7. The first transmission component 3 includes a first helical gear 31, a first cylinder 32, an elastic element 34, and a nut 33. The first helical gear 31 is sleeved on the outside of the milled flat screw 71. The first cylinder 32 is disposed at the lower end of the first helical gear 31 and sleeved on the outside of the rotating shaft 7. The upper end of the elastic element 34 is connected to the lower end of the first cylinder 32, and the lower end is connected to the bottom of the inner side of the first housing 1. The nut 33 is screwed onto the milled flat screw 71 and abuts against the upper end of the first helical gear 31. The nut 33 restricts the position of the first helical gear 31 and causes the lower end of the first cylinder 32 to press against the elastic element 34. The elastic element 34 supports the first cylinder 32 and the first helical gear 31, ensuring that the first helical gear 31 meshes with the second helical gear 61.
[0043] Figure 4 This is an exploded view of the second transmission component of this utility model. Figure 1 and Figure 4 As shown, the second transmission member 6 rotatably passes through the side of the first housing 1 and is axially arranged along the shaft 7. Its first end is located inside the first housing 1 and meshes with the upper end of the first transmission member 3. Exemplarily, the first housing 1 includes a first groove 11, which is radially arranged along the shaft 7 on the side of the first housing 1, corresponding to the inner side of the first housing 1. The second transmission member 6 is coaxially arranged with the first groove 11 and includes a second helical gear 61, a second shaft 62, a step portion 64, a second bearing 63, and a second retaining ring 65. The second helical gear 61 is positioned corresponding to the first end of the first groove 11. The first end of the second shaft 62 passes through the second through hole 111 of the first groove 11 and connects to the second end of the second helical gear 61, with a clearance fit between the second shaft 62 and the second through hole 111. The step portion 64 is located outside the second shaft 62, positioned between the first end of the first groove 11 and the second end of the second helical gear 61. Preferably, a washer is fitted on the outer side of the second shaft 62, with the washer positioned between the second end of the stepped portion 64 and the first end of the first groove 11, to ensure smooth rotation of the second transmission member 6. The outer ring of the second bearing 63 is inserted into the first groove 11, and the inner ring is fitted and fixed to the outer side of the second shaft 62. The second retaining spring 65 is engaged on the outer side of the second shaft 62, positioned corresponding to the second end of the second bearing 63. The outer diameters of both the second retaining spring 65 and the stepped portion 64 are larger than the outer diameter of the second shaft 62, restricting the axial movement of the second transmission member 6 relative to the side of the first housing 1.
[0044] Figure 5 This is an isometric view of the rocker arm of this utility model. Figure 1 and Figure 5As shown, the first end of the rocker arm 4 is engaged with the second end of the second transmission member 6, and the second end rotates around the axis of the second transmission member 6 outside the first housing 1. Exemplarily, the rocker arm 4 includes a fixing part 41, a handle part 43, and a connecting part 42. The fixing part 41 is a hollow structure with an opening at its first end, axially arranged along the second shaft 62, and its outer side engages with the first groove 11. The second shaft 62 engages with the inner side of the fixing part 41. The handle part 43 is arranged parallel to the fixing part 41. The connecting part 42 is vertically connected between the second end of the handle part 43 and the outer side of the fixing part 41.
[0045] like Figure 1 As shown, the hopper mechanism further includes a cover 2, which is snapped onto the upper end of the first housing 1. For example, the lower end of the cover 2 has a first extension 21 that is fitted inside the first housing 1, and a first sealing ring 22 is annularly snapped onto the outer side of the first extension 21. The first sealing ring 22 is in sealing contact with the inner wall of the first housing 1, thereby improving the sealing performance of the hopper mechanism.
[0046] like Figure 3 As shown, the hopper mechanism further includes a clutch 76, which is fixedly mounted on the lower end of the rotating shaft 7.
[0047] In this embodiment, the second transmission component 6 is rotated by rotating the rocker arm 4, which in turn drives the first transmission component 3 to rotate, and the first transmission component 3 drives the rotating shaft 7 to rotate. Since the second transmission component 6 is arranged radially along the rotating shaft 7, the second end of the rocker arm 4 rotates around the axis of the second transmission component 6 outside the first housing 1, allowing the rocker arm 4 to rotate in a vertical plane. This allows the consumer's hand to make more vertical movements, making it easier to exert force with the arm. The structure is simple and easy to use.
[0048] Second embodiment:
[0049] Based on the first embodiment, the second embodiment further optimizes and refines the silo mechanism.
[0050] Figure 6 This is a partial structural diagram of the hopper mechanism of this utility model. Figure 7 This is an isometric view of the material unloading rack of this utility model. Figure 6 and Figure 7As shown, the first housing 1 includes a feeding channel 12, which is located at the lower end of the first housing 1 and communicates with the interior of the first housing 1. The hopper mechanism also includes a feeding rack 5, which includes a second cylinder 51, a plate 52, and a soft rubber body 53. The second cylinder 51 is sleeved on the outside of the rotating shaft 7 and engages with the upper end of the flange 75. The plate 52 has several pieces, which are arranged in a ring on the outside of the second cylinder 51. The soft rubber body 53 is located at the lower end of the plate 52 and abuts against the bottom of the inner side of the first housing 1. The lower end of the elastic member 34 is connected to the upper end of the second cylinder 51. For example, the second cylinder 51 is coaxially arranged with the rotating shaft 7. The plate 52 is perpendicular to the side of the second cylinder 51 and the bottom of the first housing 1. Figure 2 As shown, two parallel second flat surfaces 751 are milled out at the upper outer side of the flange 75, and the second cylinder 51 is fitted onto the flange 75.
[0051] Preferably, the lower end of the first housing 1 is conical, and the lower ends of the plate 52 and the soft colloid 53 are inclined at the same angle as the lower end of the first housing 1, so as to facilitate the sweeping out of the food, food residue and powder in the hopper mechanism through the feeding channel 12.
[0052] In this embodiment, the rotation of the rotating shaft 7 drives the second cylinder 51, plate 52 and soft rubber 53 of the feeding rack 5 to rotate. The plate 52 pushes the food in the first shell 1 into the knife assembly 9 through the feeding channel 12. At the same time, the soft rubber 53 sweeps the food residue and powder into the knife assembly 9 through the feeding channel 12, so that there is no residue on the bottom of the inner side of the hopper mechanism, which is easy to clean.
[0053] Third embodiment:
[0054] Based on the first or second embodiment, the third embodiment further optimizes and refines the silo mechanism.
[0055] Figure 8 This is an isometric view of the fixed disk of this utility model. Figure 6 and Figure 8 As shown, the hopper mechanism also includes a fixed plate 8, which is sleeved on the outside of the rotating shaft 7, corresponding to the lower end of the first retaining spring 72. The fixed plate 8 includes a fourth through hole 82, which is formed on the fixed plate 8. When the fixed plate 8 is rotated to the first position, the fourth through hole 82 communicates with the material discharge channel 12. When the fixed plate 8 is rotated to the second position, the fixed plate 8 closes the material discharge channel 12.
[0056] like Figure 6 and Figure 8As shown, for example, the rotating shaft 7 passes through the third through hole 81 in the middle of the fixed disk 8, and the rotating shaft 7 and the third through hole 81 are clearance-fitted. The rotating shaft 7 includes a third retaining spring 73, which is engaged on the outside of the rotating shaft 7, corresponding to the lower end of the fixed disk 8. The outer diameters of the third retaining spring 73 and the first retaining spring 72 are both larger than the outer diameter of the rotating shaft 7, restricting the axial movement of the fixed disk 8 relative to the bottom of the first housing 1.
[0057] like Figure 6 and Figure 8 As shown, the first housing 1 further includes a second groove and a first annular groove 17. The second groove is disposed at the lower end of the first housing 1, and there are two first annular grooves 17, which are respectively opened on the lower ends of both sides of the second groove. The fixing plate 8 includes a sixth extension 84 and a hook 85. The sixth extension 84 is disposed on the fixing plate 8 and slides in the second groove. There are two hooks 85, which are respectively disposed on both sides of the upper end of the fixing plate 8 and slide in the first annular groove 17. When the fixing plate 8 is rotated to the first position, the hook 85 engages with the first annular groove 17. For example, a pipe 13 is provided at the bottom of the first housing 1 corresponding to the feeding channel 12, and the pipe 13 ensures that the feeding channel 12 is connected to the fourth through hole 82 of the fixing plate 8. The lower end of the first housing 1 is provided with an annular second extension 15 and a third extension 16. The third extension 16 is located outside the second extension 15. The two ends of the second extension 15 and the third extension 16 are connected to both sides of the pipe 13. The second extension 15 and the third extension 16, the lower end of the first housing 1 and both sides of the pipe 13 form a second groove. The sixth extension 84, the second extension 15 and the third extension 16 are arranged concentrically with the rotating shaft 7 to ensure the stability and coaxiality of the fixed disk 8 when it rotates.
[0058] Figure 9 An isometric view of the hopper mechanism of this utility model when the unloading channel is opened. Figure 10 This is an isometric view of the hopper mechanism of this utility model when the feeding channel is closed. Figure 9 and Figure 10 As shown, exemplarily, the first annular groove 17 includes a first slot 171 and a second slot 172. The first slot 171 is located at the lower outer end of the third extension 16, and the second slot 172 is located on the side of the third extension 16, with the side communicating with the upper end of the side of the first slot 171. When the fixing plate 8 is rotated clockwise to the first position, the hook 85 engages with the second slot 172, improving the connection between the fixing plate 8 and the first housing 1 during operation of the hand-cranked grinder. When the fixing plate 8 is rotated counterclockwise to the second position, the hook 85 is located at the end of the first slot 171 away from the second slot 172.
[0059] like Figure 6 and Figure 8As shown, the fixed disk 8 is further provided with a fifth extension 86 in a ring shape. The fifth extension 86 is sleeved on the outside of the fourth extension 18. The fifth extension 86 and the fourth extension 18 are arranged concentrically with the rotating shaft 7, which further ensures the stability and coaxiality of the fixed disk 8 when rotating. At the same time, the inner side of the fifth extension 86 is provided with teeth in a ring shape to reduce the contact area between the fifth extension 86 and the fourth extension 18 and reduce the friction when rotating the fixed disk 8.
[0060] like Figure 6 As shown, preferably, a second sealing ring 14 is provided at the lower end of the pipe 13. The second sealing ring 14 is in sealing contact with the surface of the fixed plate 8 to prevent food from leaking into the space between the first housing 1 and the fixed plate 8.
[0061] In this embodiment, when feeding is required, the fixed disk 8 is rotated to the first position, and the fourth through hole 82 communicates with the feeding channel 12. When not in operation, the fixed disk 8 is rotated to the second position, the fixed disk 8 closes the feeding channel 12, and the fixed disk 8 and the cover 2 together seal the first shell 1, thereby preserving the food inside the first shell 1.
[0062] Fourth embodiment:
[0063] This embodiment discloses a hand-cranked grinder.
[0064] In this embodiment, the hand-cranked grinder is a hand-cranked coffee grinder. Those skilled in the art will understand that the technical solution of this disclosure can also be applied to other types of hand-cranked grinders that require cutting or grinding food, such as hand-cranked juicers, hand-cranked grinders, and hand-cranked powder grinders.
[0065] Figure 11 This is a view of the axis of the tool assembly of this utility model. Figure 12 This is a cross-sectional view of the hand-cranked grinder of this utility model. Figure 11 and Figure 12 As shown, the hand-cranked grinding machine includes a hopper mechanism and a cutting tool assembly 9.
[0066] The cutting tool assembly 9 includes a second housing 91 and a cutter head 93. The second housing 91 has a hollow structure with a feed port 94 at its upper end, which communicates with the interior of the second housing 91. The cutter head 93 is rotatably disposed within the second housing 91.
[0067] As described in the third embodiment, the hopper mechanism has a first housing 1 positioned above the second housing 91, with a fixed disc 8 extending into the second housing 91. The lower end of the clutch 76 engages with the upper end of the cutter head 93. Rotating the fixed disc 8 to the first position causes its outer side to engage with the inner wall of the second housing 91, and the fourth through hole 82 communicates with the feed inlet 94. Rotating the fixed disc 8 to the second position disengages it from the inner wall of the second housing 91, and the fixed disc 8 closes the feed inlet 94.
[0068] For example, the third extension 16 at the lower end of the first housing 1 is engaged with the upper end of the second housing 91. A second annular groove 92 is formed at the upper inner side of the second housing 91. Two protrusions 83 are provided on the outer side of the fixing plate 8. The second annular groove 92 includes a third slot 921 and a fourth slot 922, the number of which corresponds to the number of protrusions 83. The third slot 921 is formed at the upper inner side of the second housing 91, and the fourth slot 922 is formed at the inner side of the second housing 91 and communicates with the lower side of the third slot 921. The protrusions 83 slide up and down in the third slot 921 and slide between the third slot 921 and the fourth slot 922. When the fixing plate 8 is rotated to the first position, the protrusions 83 are engaged with the fourth slot 922. When the fixing plate 8 is rotated to the second position, the protrusions 83 slide into the third slot 921. At this time, the hopper mechanism can retract the tool assembly 9.
[0069] In this embodiment, when the hand-cranked grinder is needed, the fixing plate 8 is rotated clockwise to the first position, where the upper end of the fixing plate 8 engages with the first housing 1, and the outer side of the fixing plate 8 engages with the inner wall of the second housing 91, thus assembling the hand-cranked grinder. At this time, the feeding channel 12, the fourth through hole 82, and the feed inlet 94 are connected, and the food enters the second housing 91 and is cut by the blade 93. When the hand-cranked grinder is not needed, the fixing plate 8 is rotated counterclockwise to the second position, whereby the fixing plate 8 simultaneously disengages from both the second housing 91 and the first housing 1. At this time, the fixing plate 8 closes the feed inlet 94, and the fixing plate 8, together with the cover 2, seals the first housing 1, thus preserving the food inside the first housing 1 and the second housing 91. The hand-cranked grinder of this embodiment has a simple structure, is easy to install and disassemble, and is convenient for consumers to use.
[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0071] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A hopper mechanism, characterized in that, The silo mechanism includes: The first shell is a hollow structure with the opening facing upwards; A pivot shaft rotatably passes through the lower end of the first housing; The first transmission component has its lower end sleeved and fixed to the outside of the rotating shaft, and its upper end connected to the upper end of the rotating shaft through a retaining hole. The second transmission component rotatably passes through the side of the first housing and is radially arranged along the pivot. Its first end is located inside the first housing and meshes with the upper end of the first transmission component. The rocker arm has a first end that engages with the second end of the second transmission component, and the second end rotates around the axis of the second transmission component outside the first housing. The rotating shaft includes: The first bearing has an outer ring that is snapped into the lower end of the first housing, and an inner ring that is sleeved and fixed to the outside of the rotating shaft. A flange is provided on the outside of the rotating shaft, and its position corresponds to the bottom of the inner side of the first housing. The first snap ring is attached to the outside of the rotating shaft, and its position corresponds to the lower end of the first bearing; The outer diameters of the first retaining ring and the flange are both larger than the outer diameter of the rotating shaft, thus restricting the axial movement of the rotating shaft relative to the bottom of the first housing.
2. The silo mechanism according to claim 1, characterized in that, The rotating shaft includes: A milled flat screw is formed by milling parallel first flat surfaces on both sides and setting them on the upper end of the rotating shaft; The first transmission component includes: The first helical gear is sleeved on the outside of the milled flat screw; The first cylindrical body is disposed at the lower end of the first helical gear and sleeved on the outside of the rotating shaft; The elastic element has its upper end connected to the lower end of the first cylinder and its lower end connected to the bottom of the inner side of the first shell. The nut is screwed into the milled flat screw, abutting against the upper end of the first helical gear, and causing the lower end of the first cylinder to press against the elastic element.
3. The hopper mechanism according to claim 2, characterized in that, The first housing includes: The material feeding channel is located at the lower end of the first housing and communicates with the interior of the first housing. The hopper mechanism further includes a discharge rack, which includes: The second cylinder is sleeved on the outside of the rotating shaft and engaged with the upper end of the flange; The plate body comprises several pieces, arranged in a ring around the outside of the second cylinder body; A soft gel is disposed at the lower end of the plate and abuts against the bottom of the inner side of the first shell; The lower end of the elastic element is connected to the upper end of the second cylinder.
4. The silo mechanism according to claim 1, characterized in that, The first housing includes: The first groove is radially disposed on the side of the first housing along the axis of rotation, and its position corresponds to the inner side of the first housing. The second transmission component is coaxially arranged with the first groove body and includes: The second helical gear is positioned at the first end of the first groove. The second shaft has its first end passing through the first groove and connecting to the second end of the second helical gear. A stepped portion is provided on the outside of the second shaft, and its position corresponds to the space between the first end of the first groove and the second end of the second helical gear. The second bearing has an outer ring that is inserted into the first groove, and an inner ring that is sleeved and fixed to the outside of the second shaft. The second snap ring is attached to the outside of the second shaft body, and its position corresponds to the second end of the second bearing. The outer diameters of the second snap ring and the stepped portion are both larger than the outer diameter of the second shaft, thus restricting the axial movement of the second transmission component relative to the side of the first housing.
5. The hopper mechanism according to claim 4, characterized in that, The joystick includes: The fixing part is a hollow structure with an opening at the first end, which is arranged along the axial direction of the second shaft. The outer side is inserted into the first groove, and the second shaft is inserted into the inner side of the fixing part. The handle is arranged parallel to the fixing part; The connecting part is vertically connected between the second end of the handle and the outside of the fixing part.
6. The silo mechanism according to claim 1, characterized in that, The silo mechanism also includes: The cover is snapped onto the upper end of the first housing.
7. The silo mechanism according to claim 3, characterized in that, The silo mechanism also includes: A fixing disc, sleeved on the outside of the rotating shaft, is positioned corresponding to the lower end of the first retaining ring. The fixing disc includes: A fourth through hole is provided on the fixed plate; When the fixed disk is rotated to the first position, the fourth through hole communicates with the feeding channel; when the fixed disk is rotated to the second position, the fixed disk closes the feeding channel.
8. The silo mechanism according to claim 7, characterized in that, The rotating shaft includes: The third retaining ring is attached to the outside of the rotating shaft, and its position corresponds to the lower end of the fixed plate; Wherein, the outer diameters of the third retaining ring and the first retaining ring are both larger than the outer diameter of the rotating shaft, thus restricting the axial movement of the fixed plate relative to the bottom of the first housing; The first housing includes: The second groove is disposed at the lower end of the first housing; The first annular groove has two sections, which are respectively opened at the lower ends of the two sides of the second groove. The fixed disk includes: The sixth extension is disposed on the fixed plate and slides within the second groove; The hook has two parts, which are respectively disposed on both sides of the upper end of the fixed plate and slide within the first annular groove; When the fixed plate is rotated to the first position, the hook engages with the first annular groove.
9. The hopper mechanism according to claim 7 or 8, characterized in that, The silo mechanism includes: The clutch is fixedly mounted on the lower end of the rotating shaft.
10. A hand-cranked grinder, characterized in that, The hand-cranked grinder includes: Tool assembly, including: The second housing is a hollow structure with a feed inlet at the top that communicates with the interior of the second housing. The cutter head is rotatably disposed within the second housing; The hopper mechanism, as described in claim 9, has the first housing disposed at the upper end of the second housing, and the fixed disc extending into the second housing; wherein the lower end of the clutch engages with the upper end of the cutter disc; the fixed disc is rotated to a first position, the outer side of the fixed disc engages with the inner wall of the second housing, and the fourth through hole communicates with the feed inlet; the fixed disc is rotated to a second position, the fixed disc disengages from the inner wall of the second housing, and the fixed disc closes the feed inlet.