Knob structure and food crushing device

Abstract

The utility model relates to kitchen appliance technical field discloses knob structure and food breaking device, and knob structure includes knob, display window and rotary encoder, the inner periphery of knob is equipped with first clamping structure and second clamping structure, and first clamping structure is used for clamping with display window, and second clamping structure is used for clamping with rotary encoder. Through above -mentioned design, can realize the quick installation and disassembly of knob, display window, rotary encoder, and it is convenient to maintain and replace, and compared with the mode fixed of screw or adhesive, the whole knob structure installation process is simpler, and assembly efficiency is higher, not only saves production working hours, improves production efficiency, and also is convenient to post -period dismounting maintenance, improves user's use experience, effectively solved the present knob structure each component through screw or adhesive fixed between parts, and the problem of difficult dismounting maintenance, increased production cost, influence user use experience.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, specifically to a knob structure and a food crushing device. Background Technology

[0002] Currently, food processing devices such as blenders, soy milk makers, and food processors generally use knob controls, with the knobs typically located on the side or top panel of the device. Function adjustment is achieved through a mechanical rotary switch, and some knobs also support pressing to switch modes. However, existing knob structures are mostly fixed using screws or adhesives, making installation complex and time-consuming, averaging 10-15 minutes. Furthermore, disassembly and maintenance are difficult, increasing production costs. Utility Model Content

[0003] In view of this, the present invention provides a knob structure and a food crushing device to solve the problem that the components of the existing knob structure are fixed by screws or adhesives, which makes disassembly and maintenance inconvenient.

[0004] In a first aspect, this utility model provides a knob structure, comprising:

[0005] The knob is circular.

[0006] The display window and rotary encoder are located at both ends of the knob;

[0007] The inner circumference of the knob is provided with a first snap-fit ​​structure and a second snap-fit ​​structure. The first snap-fit ​​structure is used to snap-fit ​​with the display window, and the second snap-fit ​​structure is used to snap-fit ​​with the rotary encoder.

[0008] Beneficial effects: The knob, display window, and rotary encoder are all fixed by snap-fit ​​connections, enabling quick installation and removal of the knob, display window, and rotary encoder. This facilitates maintenance and replacement. Compared to screws or adhesives, the entire knob structure installation process is simpler and more efficient, saving production time and improving production efficiency. It also facilitates later disassembly and maintenance, enhancing the user experience. This effectively solves the problem of existing knob structures where components are fixed with screws or adhesives, leading to difficult disassembly and maintenance, increased production costs, and a negative impact on user experience. Furthermore, both the first and second snap-fit ​​structures are located within the knob, concealing the connection points between the knob, display window, and rotary encoder, thus improving the product's aesthetics.

[0009] In one alternative embodiment, a first snap-fit ​​structure is disposed at one end of the knob near the display window, and the first snap-fit ​​structure includes a plurality of first latches spaced circumferentially along the knob.

[0010] And / or, a second snap-fit ​​structure is provided at the other end of the knob near the rotary encoder, the second snap-fit ​​structure including a plurality of second snaps spaced circumferentially along the knob.

[0011] Beneficial effects: By placing the first snap-fit ​​structure at one end near the display window and the second snap-fit ​​structure at the other end near the rotary encoder, it is convenient for the knob to snap into the display window and the rotary encoder. Furthermore, the first and second snap-fit ​​structures each employ multiple snap-fit ​​structures spaced circumferentially, making the connection between the knob and the display window and the rotary encoder more secure and stable.

[0012] In one alternative implementation, the display window includes:

[0013] Display window body;

[0014] The first snap-fit ​​structure is located on the side of the display window body near the knob. The first snap-fit ​​structure can extend into the knob and snap-fit ​​with the first snap-fit ​​structure.

[0015] The knob also has a positioning structure, which is located on both sides of the first snap-fit ​​structure along the circumference of the knob.

[0016] When the first snap-fit ​​structure engages with the first snap-fit ​​structure, the positioning structure is limited to both sides of the first snap-fit ​​structure to restrict the relative displacement of the display window and the knob in the circumferential direction.

[0017] Beneficial effects: The first snap-fit ​​structure can extend into the knob and engage with the first snap-fit ​​mechanism, thus concealing the connection between the display window and the knob and avoiding the aesthetic issue of the first snap-fit ​​structure being exposed. Through the positioning structure set inside the knob, after the display window and knob are engaged, the positioning structure can resist and limit the relative displacement of the display window and knob in the circumferential direction, thereby preventing the first snap-fit ​​structure from disengaging when the knob is rotated and ensuring that the knob and display window can move synchronously.

[0018] In one alternative implementation, the knob structure further includes:

[0019] The display module is located inside the knob, which has a limit structure for engaging the limit display module.

[0020] Beneficial effects: By housing the display module within the knob, the exposed display module is protected from impact damage, thus preventing impact on the overall lifespan and reliability of the device. Furthermore, the limiting structure within the knob, which engages with the display module, enhances the stability of the display module structure, ensuring a secure and stable connection while facilitating easy assembly and disassembly.

[0021] In one alternative embodiment, the limiting structure includes a limiting boss disposed on the inner wall of the knob;

[0022] The inner circumference of the knob has a stepped surface, and the display module includes a snap-fit ​​part that is positioned between the stepped surface and the limiting boss.

[0023] Beneficial effects: The limiting structure adopts the form of a limiting boss, which is simple in structure and has a good limiting effect. Furthermore, by setting a stepped surface on the inner circumference of the knob, the snap-fit ​​part of the display module is limited between the stepped surface and the limiting boss, which can effectively fix the display module in the axial direction and facilitate disassembly and assembly.

[0024] In one alternative embodiment, the rotary encoder includes a connecting portion extending into the knob, the connecting portion being located between the display module and the knob;

[0025] The outer periphery of the display module and the inner periphery of the connecting part are provided with a third snap-fit ​​structure on one side and a corresponding third snap-fit ​​mating structure on the other side.

[0026] Beneficial effects: The third snap-fit ​​structure and the third snap-fit ​​mating structure can limit the display module in the circumferential direction, so that the display module, knob and rotary encoder can form a stable and reliable connection, and are easy to disassemble and assemble.

[0027] In one alternative implementation, the display module includes:

[0028] The main display unit uses an 8×8 dot matrix LED display screen.

[0029] The display bracket is fixed to the display body. The display bracket is axially limited by the knob and circumferentially limited by the rotary encoder.

[0030] Beneficial effects: The display module adopts an 8×8 dot matrix LED display, also known as a dual 8 display module, which significantly reduces costs compared to the existing LCD screen method. Furthermore, the designed display bracket facilitates the installation and fixation of the display unit, and the snap-fit ​​connection between the bracket and the display unit makes disassembly and assembly easy, facilitating future maintenance and replacement. Additionally, the axial upper limit engagement between the display bracket and the knob, and the circumferential upper limit engagement with the rotary encoder, ensures effective fixation of the entire display module.

[0031] Secondly, this utility model also provides a food crushing device, including a base and a knob structure of any of the above embodiments mounted on the base.

[0032] In one alternative embodiment, the base is provided with mounting holes for mounting the knob structure, and the mounting holes are provided with water-retaining flanges around their circumference.

[0033] Beneficial effects: The water-blocking flange can block water flow and prevent water stains or cleaning fluid on the base from seeping into the machine through the gaps in the mounting holes and knob structure, which could cause short circuits, corrosion or malfunctions of electronic components.

[0034] In one alternative implementation, the base includes:

[0035] Base body;

[0036] The display control board is fixedly installed inside the base body and located below the knob structure. The display control board is equipped with a trigger switch, which corresponds to the display module of the knob structure.

[0037] A heat dissipation shroud is installed over the main control board of the food crushing device. The heat dissipation shroud is located below the display control board and has supporting ribs for supporting the display control board.

[0038] Beneficial effects: The support ribs on the heat dissipation shroud support the display control board from below, preventing the display control board from being damaged or deformed due to prolonged pressing of the knob structure. Attached Figure Description

[0039] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 This is a cross-sectional view of the food crushing device in an embodiment of the present invention from one angle;

[0041] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0042] Figure 3 This is a cross-sectional view of the food crushing device in an embodiment of the present invention from another angle;

[0043] Figure 4 for Figure 3 Enlarged view of the structure at point B in the middle;

[0044] Figure 5 This is a structural schematic diagram of the display module from the bottom view in an embodiment of this utility model;

[0045] Figure 6 This is a structural schematic diagram of the display module from the top view in an embodiment of this utility model;

[0046] Figure 7 This is a schematic diagram of the internal structure of the knob structure after the display window is removed in the embodiment of this utility model;

[0047] Figure 8 This is a structural schematic diagram of the knob from the top view in an embodiment of this utility model;

[0048] Figure 9 This is a structural schematic diagram of the knob from the bottom view in an embodiment of this utility model;

[0049] Figure 10 This is a schematic diagram of the structure of the heat dissipation shroud in an embodiment of this utility model;

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Knob structure;

[0052] 10. Knob; 101. Knob part; 102. Mounting part; 11. First snap-fit ​​structure; 12. Second snap-fit ​​structure; 13. Positioning structure; 14. Limiting structure; 15. Stepped surface;

[0053] 20. Display window; 21. Display window body; 22. First snap-fit ​​structure;

[0054] 30. Rotary encoder; 31. Connecting part;

[0055] 40. Display module; 41. Display body; 411. Snap-fit ​​protrusion; 42. Display bracket; 421. Snap-fit ​​part; 422. Third snap-fit ​​structure; 423. Pressing part; 424. Bracket buckle;

[0056] 50. Base; 51. Water-retaining flange; 52. Display control board; 521. Trigger switch; 53. Heat dissipation shroud; 531. Support rib; 54. Panel. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0058] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0060] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0061] The existing knob structure of food crushers has the following problems:

[0062] 1. Complex fixing methods and inconvenient maintenance: Existing knob structures mostly use screws or adhesives for fixing, which is a complex and time-consuming process, averaging 10-15 minutes. Disassembly and maintenance are also difficult, increasing production costs and resulting in a poor user experience. For example, in related technologies, the display window and knob are glued together, making disassembly and assembly difficult and inconvenient for maintenance.

[0063] 2. Insufficient waterproof sealing design: The knob installation area lacks an effective waterproof structure, and liquid easily accumulates on the base surface. Water stains or cleaning fluid can easily seep into the machine, causing short circuits, corrosion, or malfunctions of electronic components. According to statistics, about 20% of blender malfunctions are caused by water ingress.

[0064] 3. Insufficient modular design: The exposed display module is susceptible to impact damage, and messy wiring can easily cause interference or wear, affecting the reliability and lifespan of the equipment. The above problems stem from the lack of sufficient consideration for modular installation during the design phase, resulting in a poor user experience and a high maintenance rate.

[0065] Therefore, this embodiment is proposed to solve the above problems.

[0066] The following is combined Figures 1 to 10 The following describes embodiments of the present invention.

[0067] According to an embodiment of the present invention, in one aspect, the present invention provides a knob structure 1, including a knob 10, a display window 20 and a rotary encoder 30. The knob 10 is ring-shaped, and the display window 20 and the rotary encoder 30 are disposed at both ends of the knob 10. The inner circumference of the knob 10 is provided with a first snap-fit ​​structure 11 and a second snap-fit ​​structure 12. The first snap-fit ​​structure 11 is used to snap-fit ​​with the display window 20, and the second snap-fit ​​structure 12 is used to snap-fit ​​with the rotary encoder 30.

[0068] In the above embodiments, the knob 10 is fixed to the display window 20 and the rotary encoder 30 by snap-fit, enabling quick installation and disassembly of the knob 10, display window 20, and rotary encoder 30, facilitating maintenance and replacement. Compared to fixing with screws or adhesives, the entire knob structure 1 installation process is simpler and the assembly efficiency is higher. This not only saves production time and improves production efficiency but also facilitates later disassembly and maintenance, improving the user experience. It effectively solves the problem that the existing knob structure 1, which uses screws or adhesives to fix the components, makes disassembly and maintenance difficult, increases production costs, and affects the user experience. In addition, the first snap-fit ​​structure 11 and the second snap-fit ​​structure 12 are both located inside the knob 10, so that the connection between the knob 10 and the display window 20 and the rotary encoder 30 is hidden inside the knob 10, improving the aesthetics of the product.

[0069] Specifically, the knob structure 1 provided in this embodiment is applied to a food crushing device, preferably to a high-speed blender. The knob 10 is used to receive the user's rotation operation, and is cylindrical when turned. The knob 10 includes a knob part 101, and the outer peripheral wall of the knob part 101 is provided with a plurality of anti-slip textures at intervals along the circumference to facilitate the user's rotation operation.

[0070] Furthermore, the display window 20 is used to receive user pressing operations and can display real-time status information such as the blender's working mode, function selection, and working parameters. Users can switch the blender's function or working mode by rotating the knob 10, and then press the display window 20 on the knob 10 to confirm the selection and start the machine. When the user rotates the knob 10 to select a function, the display window 20 will update and display the currently selected function mode in real time. In this embodiment, the display window 20 is attached to one end of the knob 10. The display window 20 includes a display window body 21, which is circular. The cross-sectional shape and dimensions of the display window body 21 match the shape and dimensions of the outer peripheral wall of the knob portion 101.

[0071] Furthermore, the rotary encoder 30 is ring-shaped and can convert the rotational motion of the knob 10 into an electrical signal, specifically converting the mechanical rotation angle of the knob 10 into a digital signal output.

[0072] In some embodiments, a first latching structure 11 is disposed at one end of the knob 10 near the display window 20, and the first latching structure 11 includes a plurality of first latches spaced circumferentially along the knob 10. A second latching structure 12 is disposed at the other end of the knob 10 near the rotary encoder 30, and the second latching structure 12 includes a plurality of second latches spaced circumferentially along the knob 10.

[0073] In the above embodiment, by setting the first snap-fit ​​structure 11 at one end near the display window 20 and the second snap-fit ​​structure 12 at the other end near the rotary encoder 30, it is convenient for the knob 10 to snap-fit ​​with the display window 20 and the rotary encoder 30. Furthermore, the first snap-fit ​​structure 11 and the second snap-fit ​​structure 12 respectively adopt multiple snap-fit ​​structures arranged circumferentially, making the connection between the knob 10 and the display window 20 and the rotary encoder 30 more reliable and stable.

[0074] Preferably, a plurality of first buckles are evenly spaced apart, and a plurality of second buckles are evenly spaced apart.

[0075] In some embodiments, combined with Figure 1 and Figure 2 As shown, the display window 20 includes a display window body 21 and a first snap-fit ​​structure 22. The first snap-fit ​​structure 22 is disposed on the side of the display window body 21 near the knob 10. The first snap-fit ​​structure 22 can extend into the knob 10 and snap with the first snap-fit ​​structure 11. The knob 10 is also provided with a positioning structure 13. Along the circumference of the knob 10, the positioning structure 13 is disposed on both sides of the first snap-fit ​​structure 11. When the first snap-fit ​​structure 22 snaps with the first snap-fit ​​structure 11, the positioning structure 13 is limited to both sides of the first snap-fit ​​structure 22 to limit the relative displacement of the display window 20 and the knob 10 in the circumferential direction.

[0076] In the above embodiment, the first snap-fit ​​structure 22 can extend into the knob 10 and snap-fit ​​with the first snap-fit ​​structure 11, thus concealing the connection structure between the display window 20 and the knob 10 and avoiding the problem of the first snap-fit ​​structure 22 and the first snap-fit ​​structure 11 being exposed and affecting aesthetics. Through the positioning structure 13 provided inside the knob 10, the positioning structure 13 can abut and limit the first snap-fit ​​structure 22 on both sides after the display window 20 and the knob 10 are snapped together, thereby limiting the relative displacement of the display window 20 and the knob 10 in the circumferential direction. This prevents the first snap-fit ​​structure 11 and the first snap-fit ​​structure 22 from disengaging when the knob 10 is rotated, ensuring that the knob 10 and the display window 20 can move synchronously.

[0077] Specifically, the positioning structure 13 includes, but is not limited to, positioning ribs, positioning plates, and positioning bosses. In a specific example, the positioning structure 13 includes positioning ribs, with two positioning ribs corresponding to each side of each first buckle. The positioning ribs extend along the axial direction of the knob 10, and the width between the two positioning ribs is not less than the width of the first buckle. The first snap-fit ​​structure 22 also adopts a snap-fit ​​structure, and the width between the two positioning ribs is not less than the width of the first snap-fit ​​structure 22. Preferably, the width between the two positioning ribs is slightly larger than the width of the first snap-fit ​​structure 22 to avoid the problem that the two positioning ribs are too narrow, making it inconvenient for the first snap-fit ​​structure 22 to engage with the first snap-fit ​​structure 11.

[0078] In some embodiments, such as Figure 3 and Figure 4 As shown, the knob structure 1 also includes a display module 40, which is disposed inside the knob 10. A limit structure 14 is provided inside the knob 10, which is used to engage the limit display module 40.

[0079] In the above embodiment, by placing the display module 40 inside the knob 10, the display module 40 is prevented from being exposed and easily damaged by impacts, thus affecting the overall lifespan and reliability of the device. Furthermore, the limiting structure 14 provided inside the knob 10 engages with the display module 40, improving the structural stability of the display module 40, ensuring a secure and stable connection, and facilitating easy assembly and disassembly.

[0080] In some embodiments, the limiting structure 14 includes a limiting boss disposed on the inner wall of the knob 10; a stepped surface 15 is formed on the inner periphery of the knob 10, and the display module 40 includes a snap-fit ​​portion 421, which is limited between the stepped surface 15 and the limiting boss.

[0081] In the above embodiments, the limiting structure 14 adopts the structure of a limiting boss, which is simple in structure and has a good limiting effect. Furthermore, by using the stepped surface 15 provided on the inner circumference of the knob 10, the snap-fit ​​part 421 of the display module 40 is limited between the stepped surface 15 and the limiting boss, which can effectively fix the display module 40 in the axial direction and facilitate disassembly and assembly.

[0082] Preferably, such as Figure 8 As shown, the limiting structure 14 includes multiple limiting protrusions spaced circumferentially along the knob 10. Of course, the limiting protrusions can also be ring-shaped. Through the above design, the limiting effect on the display module 40 can be improved, making the force on the entire display module 40 more uniform and more balanced and stable in the circumferential direction.

[0083] Furthermore, combined Figure 4 and Figure 5As shown, the snap-fit ​​portion 421 of the display module 40 is a flange. The snap-fit ​​portion 421 is annular and deformable. During assembly, it can deform under the pressure of the limiting boss to enter the limiting space between the limiting boss and the stepped surface 15, passing through the limiting boss. When the pressure is removed, the snap-fit ​​portion 421 returns to its original shape and remains within the limiting space.

[0084] Furthermore, such as Figure 8 As shown, the knob 10 also includes a mounting portion 102, which is adapted to extend into the mounting hole of the whole machine. The mounting portion 102 is located below the knob portion 101 and is annular. The diameter of the knob portion 101 is larger than the diameter of the mounting portion 102. The inner circumference of the knob portion 101 and the inner circumference of the mounting portion 102 form a stepped surface 15. The stepped surface 15 is horizontally arranged, and a limiting space for accommodating the snap-fit ​​portion 421 of the limiting display module 40 is formed between the stepped surface 15 and the limiting structure 14.

[0085] Furthermore, the first snap-fit ​​structure 11 is disposed within the knob portion 101, and the second snap-fit ​​structure 12 is disposed within the mounting portion 102.

[0086] In some embodiments, such as Figure 1 and Figure 2 , Figure 5 As shown, the rotary encoder 30 includes a connecting part 31 that extends into the knob 10. The connecting part is located between the display module 40 and the knob 10. The outer periphery of the display module 40 and the inner periphery of the connecting part 31 are provided with a third snap-fit ​​structure 422 on one side and a corresponding third snap-fit ​​engagement structure on the other side.

[0087] In the above embodiments, the third snap-fit ​​structure 422 and the third snap-fit ​​engagement structure can limit the display module 40 in the circumferential direction, so that the display module 40, the knob 10 and the rotary encoder 30 form a stable and reliable connection, and are easy to disassemble and assemble.

[0088] Specifically, the third snap-fit ​​structure 422 is disposed on the outer periphery of the display module 40, and the third snap-fit ​​mating structure (not shown in the figure) is disposed on the inner periphery of the connecting portion 31. The third snap-fit ​​structure 422 is a snap-fit, and the third snap-fit ​​mating structure is a slot. Of course, in other alternative embodiments, both the third snap-fit ​​structure 422 and the third snap-fit ​​mating structure can be snap-fits, or the third snap-fit ​​mating structure can be a snap-fit ​​and the third snap-fit ​​structure 422 can be a slot. This embodiment does not limit this.

[0089] Preferably, the third snap-fit ​​structure 422 includes multiple snaps spaced circumferentially on the outer peripheral wall of the display module 40 to improve the fixing effect.

[0090] In some embodiments, such as Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the display module 40 includes a display body 41, which adopts an 8×8 dot matrix LED display screen; the display module 40 includes a display bracket 42, the display body 41 is snapped and fixed on the display bracket 42, the display bracket 42 is limited to the knob 10 in the axial direction and limited to the rotary encoder 30 in the circumferential direction.

[0091] In the above embodiment, the display module 40 adopts an 8×8 dot matrix LED display screen, i.e., a dual 8 display module, which can significantly reduce costs compared to the existing method of using an LCD screen. Furthermore, the display bracket 42 facilitates the installation and fixation of the display body 41, and the snap-fit ​​fixation between the display bracket 42 and the display body 41 makes it easy to disassemble and assemble the display body 41, facilitating future maintenance and replacement. Moreover, the axial upper limit engagement between the display bracket 42 and the knob 10, and the circumferential upper limit engagement with the rotary encoder 30, effectively fixes the entire display module 40.

[0092] Specifically, in this embodiment, as Figure 6 As shown, the display bracket 42 is provided with bracket buckles 424, which are used to fasten and fix the display body 41. The bracket buckles 424 have multiple sets arranged at intervals along the circumference. Preferably, there are two sets of bracket buckles 424, which are distributed on opposite sides of the display bracket 42. The bottom sides of the display body 41 are provided with corresponding locking protrusions 411, and the bracket buckles 424 are locked onto the locking protrusions 411.

[0093] Preferably, each set of bracket buckles 424 includes two buckles spaced apart, which are respectively engaged on the opposite sides of the engagement protrusion 411 of the display body 41. This not only limits the display body 41 in the axial direction, but also restricts the relative displacement between the display body 41 and the display bracket 42 in the circumferential direction.

[0094] Furthermore, the display body 41 is located above the display bracket 42, and the display bracket 42 is snapped and limited between the limiting structure 14 and the stepped surface 15. The display bracket 42 is snapped and fixed to the rotary encoder 30. The display bracket 42 includes a cylindrical bracket body and a snap-fit ​​part 421 provided on the bracket body, that is, a flange provided on the upper end of the bracket body. The snap-fit ​​part 421 is annular plate-shaped, and the bracket buckle 424 is provided on the snap-fit ​​part 421. The third snap-fit ​​structure 422 is provided on the bracket body.

[0095] Furthermore, the display bracket 42 also includes a pressing part 423, which includes a connecting rib connected within the bracket body. The pressing part 423 corresponds to the trigger switch 521 on the display control board 52. When the display window 20 of the knob structure 1 is pressed, the pressing force is transmitted through the display body 41 and the pressing part 423 of the display bracket 42 to the trigger switch 521, thereby triggering the trigger switch 521. In addition, by adopting the above-mentioned connecting rib structure, the pressing part 423 can also serve as a reinforcing rib, increasing the structural strength of the entire display bracket 42.

[0096] Preferably, there are multiple connecting ribs, with one end of each rib converging at the center of the support body and the other end connected to the inner peripheral wall of the support body. The converging point of the multiple connecting ribs corresponds to the position of the trigger switch 521. This design improves the force transmission effect.

[0097] In this embodiment, the components of the knob structure 1 are fixed by snap-fit. Of course, in other alternative embodiments, the components of the knob structure 1 can also be fixed by magnetic attraction, enabling quick installation and disassembly, facilitating maintenance and replacement. By setting the knob structure 1 as an independent module and connecting it to the whole machine through a standardized interface, it is easy to replace or upgrade it individually, reducing maintenance costs.

[0098] According to an embodiment of the present invention, another aspect provides a food crushing device, including a base 50 and a knob structure 1 of any of the above embodiments mounted on the base 50.

[0099] In this embodiment, the food crushing device includes, but is not limited to, a high-speed blender, a soymilk maker, and a food processor. Preferably, the food crushing device is a high-speed blender.

[0100] In some embodiments, the base 50 is provided with a mounting hole for mounting the knob structure 1, and a water-blocking flange 51 is provided around the mounting hole.

[0101] In the above embodiment, the water-blocking flange 51 can block the water flow and prevent water stains or cleaning liquid on the base 50 from seeping into the machine through the gaps in the mounting hole and knob structure 1, which could cause short circuits, corrosion or malfunctions of the electronic components inside the base 50.

[0102] Specifically, such as Figures 1 to 4As shown, the base 50 includes a panel 54 with a mounting hole. A water-blocking flange 51 extends from the circumferential edge of the mounting hole away from the panel 54. The mounting portion 102 of the knob 10 extends into the mounting hole. The knob portion 101 is located above the panel 54. The knob 10 also includes a stepped portion connecting the knob portion 101 and the mounting portion 102. The top wall of the stepped portion forms a stepped surface 15. The lower end of the knob portion 101 is provided with a shielding section that protrudes from the bottom wall of the stepped portion. The inner circumferential wall of the shielding section at the lower end of the knob portion 101, the bottom wall of the stepped portion, and part of the outer circumferential wall of the mounting portion 102 form a receiving groove for accommodating the water-blocking flange 51. The water-blocking flange 51 is shielded by the shielding section at the lower end of the knob portion 101 and hidden in the receiving groove, which is more aesthetically pleasing.

[0103] Preferably, such as Figure 4 As shown, the outer periphery of the water-blocking flange 51 is provided with an annular positioning boss, and the bottom wall of the stepped part is provided with an annular groove. Through the convex-concave cooperation of the positioning boss and the annular groove, the knob structure 1 can be positioned and limited to prevent the knob structure 1 from shaking.

[0104] In some alternative embodiments, a waterproof sealing ring or waterproof gasket is provided at the mounting hole to prevent liquid penetration.

[0105] In some embodiments, combined with Figures 1 to 4 as well as Figure 10 As shown, the base 50 includes a base body and a display control board 52, which is fixedly installed in the base body. The display control board 52 is located below the knob structure 1. The display control board 52 is provided with a trigger switch 521, which corresponds to the display module 40 of the knob structure 1. The base 50 includes a heat dissipation shroud 53, which covers the main control board of the food crushing device. The heat dissipation shroud 53 is located below the display control board 52. The heat dissipation shroud 53 is provided with a support rib 531 for supporting the display control board 52.

[0106] In the above embodiment, the support rib 531 provided on the heat dissipation shroud 53 supports and abuts against the bottom of the display control board 52, thereby supporting the display control board 52 and preventing the display control board 52 from being damaged or deformed due to long-term pressing of the knob structure 1.

[0107] Preferably, the support rib 531 corresponds to the position of the trigger switch 521, which can effectively avoid the problem of the corresponding part of the display control board 52 collapsing and deforming when the trigger switch 521 is pressed.

[0108] Specifically, the main functions of the heat dissipation shroud 53 include protecting the main control board and forming a heat dissipation channel inside, allowing cooling air to pass through and dissipate heat from the main control board. The support rib 531 is a raised structure set on the top wall of the heat dissipation shroud 53. The trigger switch 521 is welded to the display control board 52. When the trigger switch 521 is pressed, if the display control board 52 is not supported, it will be easily crushed or deformed. Preferably, the support rib 531 is a cross-shaped raised rib, which has high structural strength and good support effect.

[0109] The following is in conjunction with the appendix Figures 1 to 10 The knob structure 1 and its installation method in this embodiment will be described in detail.

[0110] In this embodiment, the knob structure 1 includes a knob 10, a rotary encoder 30, a display module 40, and a display window 20. The knob structure 1 is installed on the panel 54 of the base 50. It not only enables the knob to be rotated and pressed, but also has a display function. Moreover, it is cheaper than the knob structure 1 on the market.

[0111] First, the display module 40 is assembled. The display module 40 includes a display body 41 and a display bracket 42. The display body 41 uses an 8×8 dot matrix LED display screen, commonly known as a dual 8 display module. The display body 41 is installed on the display bracket 42 from top to bottom via bracket clips 424 on the left and right sides, with a total of four clips securing the display body 41. Then, the rotary encoder 30 is installed. The rotary encoder 30 is installed from top to bottom inside the knob 10, and then the display bracket 42 is installed from top to bottom on the rotary encoder 30. Finally, the display window 20 is installed, all using a clip-on assembly method. To limit the upward freedom of the display window 20, three first clips are spaced apart inside the knob 10. The top surface of the first clip has an inclined guide surface, which serves as a guide to facilitate the installation of the display bracket 42, display window 20, and rotary encoder 30. To limit the upward freedom of the display bracket 42, three limiting bosses are spaced apart inside the knob 10. The top surface of the limiting bosses has an inclined guide surface, which serves as a guide to facilitate the insertion of the display bracket 42. The display bracket 42 is limited between the limiting bosses and the stepped surface 15 inside the knob 10. The three first latches engage the display window 20. In addition, the positioning ribs provided on both sides of the first latches of the knob 10 can limit the rotation of the first engaging structure 22 of the display window 20, thereby limiting the rotation of the display window 20.

[0112] Furthermore, the mounting portion 102 below the display bracket 42 is hollow, forming a wire passage hole. The display control board 52 is also provided with a wire passage hole. The connecting wire of the display body 41 passes through these two wire passage holes and is mounted on the display control board 52. By using the above-mentioned wiring method, the display module 40 effectively solves the problem of wiring not being possible in the encoder's sealed space.

[0113] Furthermore, a waterproof structure is incorporated at the panel 54 of the base 50 below the knob 10. Specifically, a water-retaining flange 51 is provided around the mounting hole, effectively preventing water from entering the internal components of the device and damaging them. In this embodiment, the knob 10 is rotated via a rotary encoder 30, while pressing is achieved by applying force to the display window 20, which drives the knob 10 downwards. The knob 10 then causes the display bracket 42 to press down, and the pressing part 423 of the bracket presses the trigger switch 521 on the display control board 52. After the force applied to the display window 20 is released, the spring inside the trigger switch 521 pushes the knob structure 1 back up. To prevent excessive pressing from damaging the display control board 52, a support rib is provided on the heat dissipation shroud 53 below the trigger switch 521 of the display control board 52, providing support.

[0114] In this embodiment, the knob structure 1 is fully snap-fit ​​installed without screws or adhesives, which simplifies the installation process, saves installation time, and effectively solves the problem of difficult disassembly and maintenance caused by using screws or adhesives, which increases production costs. In addition, the display module 40 is hidden inside the knob 10, which avoids the problem of the display module 40 being exposed to the outside and easily damaged by impact, affecting the reliability and lifespan of the equipment.

[0115] Compared to traditional installation methods, the main advantages of this application are:

[0116] 1. The installation of knob structure 1 is all snap-fit ​​type, which improves assembly efficiency, saves production time, and improves production efficiency;

[0117] 2. The water-blocking flange 51 set at the mounting hole can effectively prevent water from the panel 54 from entering the internal parts of the machine and damaging the components, thereby improving the service life and safety of the machine.

[0118] 3. The use of 8×8 dot matrix LED display blocks can significantly reduce costs compared to the existing method of using LCD screens.

[0119] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the protection scope of the embodiments of this application.

Claims

1. A knob structure, characterized in that, include: The knob (10) is ring-shaped; A display window (20) and a rotary encoder (30) are disposed at both ends of the knob (10); The inner circumference of the knob (10) is provided with a first snap-fit ​​structure (11) and a second snap-fit ​​structure (12). The first snap-fit ​​structure (11) is used to snap-fit ​​with the display window (20), and the second snap-fit ​​structure (12) is used to snap-fit ​​with the rotary encoder (30).

2. The knob structure according to claim 1, characterized in that, The first snap-fit ​​structure (11) is disposed at one end of the knob (10) near the display window (20), and the first snap-fit ​​structure (11) includes a plurality of first snaps spaced circumferentially along the knob (10); And / or, the second snap-fit ​​structure (12) is disposed at the other end of the knob (10) near the rotary encoder (30), and the second snap-fit ​​structure (12) includes a plurality of second snaps spaced circumferentially along the knob (10).

3. The knob structure according to claim 1, characterized in that, The display window (20) includes: Display window body (21); The first snap-fit ​​structure (22) is disposed on the side of the display window body (21) near the knob (10). The first snap-fit ​​structure (22) can extend into the knob (10) and snap-fit ​​with the first snap-fit ​​structure (11). The knob (10) is also provided with a positioning structure (13), which is arranged on both sides of the first snap-fit ​​structure (11) along the circumference of the knob (10). When the first snap-fit ​​structure (22) snaps into the first snap-fit ​​structure (11), the positioning structure (13) is positioned on both sides of the first snap-fit ​​structure (22) to limit the relative displacement of the display window (20) and the knob (10) in the circumferential direction.

4. The knob structure according to any one of claims 1 to 3, characterized in that, The knob structure (1) also includes: The display module (40) is disposed inside the knob (10), and the knob (10) is provided with a limiting structure (14), which is used to lock and limit the display module (40).

5. The knob structure according to claim 4, characterized in that, The limiting structure (14) includes a limiting boss disposed on the inner wall of the knob (10); The knob (10) has a stepped surface (15) formed on its inner periphery. The display module (40) includes a snap-fit ​​part (421), which is positioned between the stepped surface (15) and the limiting boss.

6. The knob structure according to claim 4, characterized in that, The rotary encoder (30) includes a connecting part (31) extending into the knob (10), the connecting part (31) being located between the display module (40) and the knob (10); The outer periphery of the display module (40) and the inner periphery of the connecting part (31) are provided with a third snap-fit ​​structure (422) on one side and a corresponding third snap-fit ​​engagement structure on the other side.

7. The knob structure according to claim 4, characterized in that, The display module (40) includes: The display body (41) adopts an 8×8 dot matrix LED display screen; The display bracket (42) is fixedly attached to the display body (41). The display bracket (42) is axially limited to the knob (10) and circumferentially limited to the rotary encoder (30).

8. A food crushing device, characterized in that, Includes a base (50) and a knob structure (1) as described in any one of claims 1 to 7 mounted on the base (50).

9. The food crushing device according to claim 8, characterized in that, The base (50) is provided with mounting holes for mounting the knob structure (1), and the mounting holes are provided with water-blocking flanges (51) in the circumferential direction.

10. The food crushing device according to claim 8, characterized in that, The base (50) includes: Base body; The display control board (52) is fixedly installed in the base body and located below the knob structure (1). The display control board (52) is provided with a trigger switch (521), which corresponds to the display module (40) of the knob structure (1). A heat dissipation shroud (53) is installed outside the main control board of the food crushing device. The heat dissipation shroud (53) is located below the display control board (52). The heat dissipation shroud (53) is provided with support ribs (531) for supporting the display control board (52).

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