A coffee bean unloading mechanism and a coffee roaster

Abstract

This utility model discloses a bean unloading mechanism and a coffee roaster. The bean unloading mechanism includes a bean unloading tube and a switch assembly. One end of the bean unloading tube is connected to the bean outlet of the roasting tray, and the other end is connected to the outside of the machine body. A limiting member is provided inside. The switch assembly is slidably connected inside the bean unloading tube and consists of an end cap, a locking connecting seat, and a rotating member. One end of the locking connecting seat is connected to the end cap, and the other end allows the rotating member to move through, with the rotating member partially protruding. The mechanism has two states: in the locked state, the end cap closes the bean outlet, and the rotating member is engaged with the limiting member; in the unloading state, rotating the rotating member causes its protruding part to disengage from the limiting member, pulling the rotating member and the locking connecting seat out along the bean unloading tube, thereby opening the bean outlet of the end cap. This application has a simple structure and is easy to operate, achieving reliable locking and smooth bean unloading, effectively preventing coffee bean leakage, and improving the user experience of the coffee roaster.

Description

Technical Field

[0001] This utility model relates to the technical field of coffee processing equipment, and in particular to a bean unloading mechanism and a coffee roaster. Background Technology

[0002] A coffee roaster is a device used to roast coffee beans, which are then discharged through the unloading port. Currently, the unloading mechanism of coffee roasters is usually quite complex and inconvenient to operate. It is prone to leaks during locking, leading to coffee bean leakage during roasting, and jamming during unloading, thus affecting unloading efficiency. Utility Model Content

[0003] This utility model aims to at least partially solve one of the problems in related technologies. Therefore, one of the objectives of this utility model is to provide a bean unloading mechanism that is simple in structure, convenient in operation, reliable in locking, and allows for smooth bean unloading.

[0004] A bean unloading mechanism for a coffee roaster, the coffee roaster including a roasting tray and a body, the bean unloading mechanism comprising:

[0005] The bean unloading tube has one end connected to the bean outlet of the drying tray and the other end connected to the outside of the machine body. A limiting component is connected inside the bean unloading tube.

[0006] A switch assembly is slidably connected inside the bean unloading tube and located on one side of the limiting member. The switch assembly includes an end cap, a locking connecting seat, and a rotating member. One end of the locking connecting seat is connected to the end cap, and the rotating member is movably connected to and passes through the other end of the locking connecting seat. The rotating member partially protrudes from the locking connecting seat.

[0007] The bean unloading mechanism has a locked state where the end cap closes the bean outlet and the rotating member is engaged with the limiting member, and a bean unloading state where the rotating member is rotated so that its protruding part is disengaged from the limiting member, and the rotating member and the locking connecting seat are pulled out along the other end of the bean unloading tube to drive the end cap to open the bean outlet.

[0008] Furthermore, the rotating component includes a rotating part, a connecting shaft, and a snap-fit ​​part. The rotating part is connected to one end of the connecting shaft, and the snap-fit ​​part is connected to the other end of the connecting shaft. The locking connecting seat has a receiving groove on the side facing the limiting component. The connecting shaft passes through the locking connecting seat, and the rotating part is located at the other end of the locking connecting seat. The snap-fit ​​part is movably disposed in the receiving groove. When in the locked state, the snap-fit ​​part protrudes outside the receiving groove, and when in the unloading state, the snap-fit ​​part is stored in the receiving groove.

[0009] Furthermore, the side surface of the rotating part is recessed with an arc-shaped surface.

[0010] Furthermore, the locking connector has a connecting groove that connects to the storage groove. The groove wall of the connecting groove has a limiting step. The switch assembly also includes a spring that is sleeved on the connecting shaft. One end of the spring abuts against the limiting step, and the other end abuts against the rotating part.

[0011] Furthermore, the inner wall of the bean unloading tube is provided with a guide block, and the side wall of the switch assembly is provided with a guide groove that cooperates with the guide block, and the guide block is slidably connected in the guide groove.

[0012] Furthermore, the limiting component and the bean unloading tube are integrally formed.

[0013] Furthermore, the bean unloading mechanism also includes an outer cover assembly, which includes a base, a rotating shaft, and an outer flip cover. The base is connected to the outer surface of the machine body and is arranged around the periphery of the bean unloading tube. The rotating shaft is connected to the base, and the outer flip cover is rotatably connected to the rotating shaft to open or close the base and the bean unloading tube.

[0014] Furthermore, the outer cover assembly also includes a seal, which is connected to the side surface of the outer flap facing the base. When the outer flap is placed over the unloading pipe, the seal abuts against the end of the unloading pipe.

[0015] Furthermore, the sealing element has a clearance groove, and when the outer flap is placed on the bean unloading pipe, the rotating element is placed in the clearance groove.

[0016] This utility model also proposes a coffee roaster, including a body, a roasting tray, and a coffee unloading mechanism as described above, wherein one end of the unloading mechanism is connected to the roasting tray and the other end is connected to the body.

[0017] Compared with the prior art, the technical solution provided in this application has the following advantages: The bean unloading mechanism provided in this application, by setting a bean unloading tube and a switch assembly, includes an end cap, a locking connecting seat, and a rotating component. In the locked state, the end cap closes the bean outlet, and the rotating component is engaged with the limiting component, achieving reliable locking. When bean unloading is required, rotating the rotating component disengages it from the limiting component, and pulling out the rotating component and the locking connecting seat causes the end cap to open the bean outlet, making operation simple and convenient. The entire mechanism of this application has a simple structure, reliable locking, and smooth bean unloading, featuring convenient operation and reliable use, thus improving the user experience. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] In the attached image:

[0021] Figure 1 This is a schematic diagram of the locked state of an embodiment of the bean unloading mechanism of this application;

[0022] Figure 2 This is a schematic diagram of the structure of an embodiment of the bean unloading mechanism of this application in the unlocked state and the pulled-out state;

[0023] Figure 3 This is a schematic diagram of the switch assembly in a locked and unlocked state in one embodiment of the bean unloading mechanism of this application;

[0024] Figure 4 This is a schematic diagram of the structure of the bean unloading mechanism of this application from another perspective, showing the locked and unlocked pull-out states;

[0025] Figure 5 This is a schematic diagram of the exploded structure of the bean unloading mechanism in this application;

[0026] Figure 6 This is a schematic diagram of the exploded structure of the bean unloading mechanism in this application from another perspective.

[0027] Figure 7 This is a schematic diagram of the structure of the bean unloading mechanism and the bean drying tray in the locked and unlocked pulled-out states in this application.

[0028] Figure 8 This is a schematic diagram of the bean unloading mechanism and the bean drying tray in this application, showing them in a locked state and an unlocked pulled-out state from another perspective.

[0029] Figure 9 This is a schematic diagram of the coffee roaster of this application;

[0030] Figure 10 This is a schematic diagram of the coffee bean unloading mechanism in the coffee roaster of this application, showing both the locked and unlocked pull-out states.

[0031] Figure 11 for Figure 10 A magnified view of a portion of point A in the middle.

[0032] Figure label:

[0033] 100. Bean unloading mechanism; 10. Bean unloading tube; 11. Limiting component; 13. Guide block; 20. Switch assembly; 21. End cap; 22. Locking connector; 221. Storage slot; 222. Connecting slot; 223. Limiting step; 23. Rotating component; 231. Rotating part; 2311. Arc-shaped surface; 232. Connecting shaft; 233. Snap-fit ​​part; 24. Spring; 25. Guide groove; 40. Outer cover assembly; 41. Base; 42. Rotating shaft; 43. Outer flip cover; 44. Seal; 441. Clearance groove; 200. Machine body; 300. Bean roasting tray; 1000. Coffee roaster. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0036] like Figure 1 - Figure 8 As shown, this application provides a bean unloading mechanism 100 for a coffee roaster 1000, the coffee roaster 1000 including a roasting tray 300 and a body 200, the bean unloading mechanism 100 including:

[0037] The bean unloading pipe 10 has one end connected to the bean outlet of the bean drying tray 300 and the other end connected to the outside of the machine body 200. A limiting member 11 is connected inside the bean unloading pipe 10.

[0038] A switch assembly 20 is slidably connected inside the bean unloading tube 10 and located on one side of the limiting member 11. The switch assembly 20 includes an end cap 21, a locking connecting seat 22, and a rotating member 23. One end of the locking connecting seat 22 is connected to the end cap 21, and the rotating member 23 is movably connected to and passes through the other end of the locking connecting seat 22. The rotating member 23 partially protrudes from the locking connecting seat 22.

[0039] The bean unloading mechanism 100 has a locked state in which the end cap 21 closes the bean outlet and the rotating member 23 is engaged with the limiting member 11, and a bean unloading state in which the rotating member 23 is rotated so that its protruding part is disengaged from the limiting member 11 and the rotating member 23 and the locking connecting seat 22 are pulled out along the other end of the bean unloading tube 10 so as to drive the end cap 21 to open the bean outlet.

[0040] One end of the unloading tube 10 connects to the coffee bean outlet of the roasting tray 300, and the other end connects to the outside of the machine body 200. An internal limiting component 11 is connected, and it also provides sliding space for the switch assembly 20. As a channel for coffee bean discharge, the unloading tube 10 serves as a bridge connecting the roasting tray 300 and the outside of the machine body 200, and also provides a basic support for the installation and movement of the switch assembly 20. The limiting component 11 provides a crucial locking point in the locked state, ensuring that the end cap 21 can stably close the coffee bean outlet. On the one hand, the channel design connecting the coffee bean outlet to the outside of the machine body 200 ensures that coffee beans can be smoothly discharged along a fixed path in the unloading state, preventing coffee beans from scattering. On the other hand, the cooperation between the internal limiting component 11 and the switch assembly 20 eliminates the need for additional complex locking devices, simplifying the overall structure and reducing manufacturing costs. Simultaneously, the sliding space provided by the unloading tube 10 for the switch assembly 20 makes the movement of the switch assembly 20 more directional, reducing component wobbling and improving the durability of the mechanism.

[0041] End cap 21 is connected to one end of locking connector 22. In the locked state, it seals the coffee outlet; in the unloading state, it moves with locking connector 22 to open the outlet. End cap 21 is the component that directly controls the opening and closing of the coffee outlet. Through its contact and separation with the outlet, it controls the discharge of coffee beans. In the locked state, end cap 21 tightly seals the outlet, effectively preventing coffee bean leakage during roasting, ensuring a sealed roasting environment, and guaranteeing uniform roasting. In the unloading state, it moves synchronously with locking connector 22 to open the outlet smoothly without obstructing coffee bean discharge, improving the smoothness of unloading. Furthermore, the connection between end cap 21 and locking connector 22 is secure and unlikely to detach over long-term use, ensuring the stability of the mechanism and reducing maintenance requirements.

[0042] The locking connector 22 is connected to the end cover 21 at one end and the rotating component 23 is movably connected and passes through at the other end, serving as an intermediate component connecting the end cover 21 and the rotating component 23. It transmits force, transferring the pulling force of the rotating component 23 to the end cover 21, enabling the movement of the end cover 21. Simultaneously, it provides mounting and movable support for the rotating component 23, ensuring stable rotation and pulling actions. The locking connector 22's connection function ensures that the operation of the rotating component 23 is efficiently transmitted to the end cover 21, allowing the user to easily control the opening and closing of the end cover 21 by operating the rotating component 23, improving operational convenience. At the same time, the movable support provided for the rotating component 23 ensures that it is not easily misaligned during rotation and pulling, reducing friction and wear between components and extending the service life of the switch assembly 20. Furthermore, the locking connector 22 has high structural strength, capable of withstanding the pulling and rotational forces transmitted by the rotating component 23, and is not easily deformed, ensuring long-term stable operation of the mechanism.

[0043] The rotating component 23 is movably connected to and passes through the other end of the locking connector 22, partially protruding from the locking connector 22. It can be rotated to disengage from the limiting component 11 and can be pulled out to move the locking connector 22. The rotating component 23 is the direct part operated by the user. It engages and disengages with the limiting component 11 through rotation and moves the entire switch assembly 20 through pulling, thereby controlling the opening and closing of the end cover 21. The part of the rotating component 23 protruding from the locking connector 22 is easy for the user to hold and operate. The rotation action can quickly disengage from the limiting component 11, and the pulling action can easily open the end cover 21. The whole operation process is simple and effortless, greatly improving the user experience. At the same time, the engagement between the rotating component 23 and the limiting component 11 is tight, and it is not easy to accidentally disengage in the locked state, ensuring the reliability of the end cover 21's closure. In the unloading state, the process of rotating to disengage from the limiting component 11 is smooth and without jamming, ensuring the efficiency of state switching. In addition, the movable connection design of the rotating part 23 makes it highly flexible when rotating and pulling, reduces operating resistance, and further improves the ease of use of the mechanism.

[0044] The limiting component 11 is connected inside the unloading tube 10 and engages with the rotating component 23 in the locked state, restricting the movement of the switch assembly 20. It is a key component for achieving the locked state; by engaging with the rotating component 23, it provides a fixed fulcrum for the switch assembly 20, preventing the end cap 21 from opening accidentally. In the locked state, the reliable engagement with the rotating component 23 effectively resists vibrations or minor external forces that may occur during roasting, preventing accidental movement of the switch assembly 20 that could cause the end cap 21 to open, thus ensuring the safety and stability of the roasting process. In the unloading state, it easily disengages with the rotation of the rotating component 23, without obstructing the movement of the switch assembly 20, ensuring smooth unloading operations. Furthermore, the connection between the limiting component 11 and the unloading tube 10 is firm and not easily loosened due to long-term engagement and stress, improving the overall reliability of the mechanism and extending its service life.

[0045] The unloading tube 10 is tightly connected to the bean outlet of the roasting tray 300 and the exterior of the machine body 200 through welding, threaded connection, or other methods, forming a continuous coffee bean discharge channel. For example, in some small coffee roasters 1000, the unloading tube 10 is made of thin-walled metal tube, one end of which is firmly connected to the bean outlet of the roasting tray 300 through welding, and the other end is threaded onto the corresponding interface on the outer shell of the machine body 200, ensuring the sealing and stability of the connection and preventing coffee bean leakage.

[0046] The inner wall of the unloading tube 10 is treated with grinding and polishing, resulting in a smooth and flat surface. When coffee beans pass through under gravity or slight external force, this reduces the frictional resistance between the inner wall and the beans, lowering the probability of skin damage and ensuring the beans are discharged intact. This design is commonly used in professional coffee roasters (model 1000) where high-quality coffee bean appearance is required.

[0047] The sealing surface of the end cap 21 is flat, and it fits tightly against the sealing surface of the bean outlet to achieve a seal. For example, elastic sealing gaskets such as rubber or silicone can be pasted or embedded in the sealing surface of the end cap 21. When the end cap 21 closes the bean outlet, the sealing gasket deforms elastically under pressure, filling the tiny gap between the end cap 21 and the bean outlet and preventing coffee beans from leaking out. This sealing structure is simple and low in cost.

[0048] The end cap 21 and the locking connector 22 are manufactured using an integral molding process, such as injection molding or casting, making the end cap 21 and the locking connector 22 an inseparable whole. This connection method has high structural strength, eliminates the problem of loosening at the connection points, and ensures that the end cap 21 works stably and reliably during the movement of the switch assembly 20.

[0049] The end cap 21 and the locking connector 22 are detachably connected via bolts, snap-fits, threads, or other methods. When bolted, corresponding bolt holes are made on the end cap 21 and the locking connector 22; tightening the bolts secures the connection, facilitating individual replacement of either the end cap 21 or the locking connector 22 if damaged. Snap-fit ​​connections utilize the elastic deformation of the snap-fit ​​for quick installation and removal, simplifying operation. Threaded connections involve machining threads on the end cap 21 and the locking connector 22; tightening them secures the connection and provides a degree of self-locking. These connection methods facilitate maintenance and component replacement, reducing maintenance costs.

[0050] The rotating component 23 is designed in the shape of a handle for easy gripping and operation. The handle can be straight, curved, or have ergonomically designed grip areas. For example, a straight handle has a simple structure, is easy to manufacture, and allows the user to directly apply force to rotate it; a curved handle can be designed according to the operating space and human operating habits, making operation more comfortable and convenient; and an ergonomically designed grip area, such as anti-slip textures or finger grooves on the handle surface, can increase the friction between the hand and the handle, prevent slippage during operation, and improve the stability and reliability of operation.

[0051] The rotating component 23 is a knob structure, typically mounted on the locking connector 22. It can be engaged or disengaged from the limiting component 11 by rotating the knob. The knob surface can be designed with graduations, markings, or embossed patterns to facilitate accurate control of the rotation angle and enhance the tactile feel during operation. For example, in the unloading mechanism 100 of some coffee roasters 1000 that require high operational precision, the graduations on the knob help users precisely adjust the position of the rotating component 23, ensuring accurate switching between locking and unloading states.

[0052] The limiting component 11 is directly fixed inside the unloading tube 10 by welding. Welding methods such as argon arc welding and gas shielded welding can be used to firmly connect the limiting component 11 to the inner wall of the unloading tube 10. The advantage of welding is high connection strength; the limiting component 11 is not prone to loosening or falling off during long-term use, ensuring stable engagement with the rotating component 23. This method is suitable for coffee roasters 1000 where high reliability of the limiting component 11 is required.

[0053] Threads are machined on the inner wall of the unloading pipe 10 and the limiting member 11, respectively, and the limiting member 11 is fixed inside the unloading pipe 10 by threaded connection. This fixing method is convenient for installation and disassembly. When the limiting member 11 is damaged or needs to be adjusted, it can be replaced or adjusted by rotating the limiting member 11.

[0054] The limiting component 11 is a block structure, and its shape can be cuboid, cube, cylinder, etc. The block limiting component 11 has a simple structure and is easy to process and manufacture. For example, the cuboid block limiting component 11 can be precisely machined according to the internal space of the unloading tube 10 and the locking requirements of the rotating component 23 to ensure a tight fit with the locking structure such as the slot or hook of the rotating component 23, so as to achieve a reliable locking function.

[0055] Furthermore, the rotating component 23 includes a rotating part 231, a connecting shaft 232, and a locking part 233. The rotating part 231 is connected to one end of the connecting shaft 232, and the locking part 233 is connected to the other end of the connecting shaft 232. The locking connecting seat 22 has a receiving groove 221 on the side facing the limiting component 11. The connecting shaft 232 passes through the locking connecting seat 22, and the rotating part 231 is located at the other end of the locking connecting seat 22. The locking part 233 is movably disposed in the receiving groove 221. When in the locked state, the locking part 233 protrudes out of the receiving groove 221. When in the unloading state, the locking part 233 is stored in the receiving groove 221.

[0056] The split structure of the rotating component 23 clearly defines the function of each part. The rotating part 231 facilitates user-applied rotation, the connecting shaft 232 ensures effective transmission of rotational and pulling actions, and the locking part 233 precisely engages and disengages with the limiting part 11. The coordinated work of all components improves the accuracy and reliability of operation. On the other hand, the storage slot 221 allows the locking part 233 to be stored in the unloading state, preventing collisions or friction between the locking part 233 and the inner wall of the unloading tube 10 or the limiting part 11 during the pulling process, reducing wear on components and extending the service life of the mechanism. Meanwhile, this structure makes the switching between locking and unloading states smoother. When in the locking state, the locking part 233 protrudes from the receiving groove 221 and engages with the limiting member 11, ensuring the locking is secure. When in the unloading state, the locking part 233 is retracted into the receiving groove 221, which does not obstruct the pulling out of the rotating part 23 and the locking connecting seat 22, further improving the smoothness of the unloading process. In addition, this refined structural design also facilitates the individual processing and replacement of each component. If a component is damaged, only the corresponding component needs to be replaced, reducing maintenance costs.

[0057] Furthermore, the side surface of the rotating part 231 is recessed with an arc-shaped surface 2311.

[0058] The curved surface 2311 conforms to the shape of human fingers. When the user rotates the rotating part 231, the fingers make closer contact with the curved surface 2311, distributing pressure on the fingers, reducing discomfort from prolonged operation, and improving user comfort. Simultaneously, the curved surface 2311 increases the friction between the fingers and the rotating part 231, preventing slippage during rotation. This allows the user to apply force more easily and stably, ensuring smooth rotation and further improving ease of operation. This advantage is particularly noticeable when hands are sweaty or damp, ensuring reliable state switching. Furthermore, the curved surface 2311 provides a point of leverage when pulling out, facilitating force application and pulling. The rotating part 23 and the locking connector 22 slide smoothly along a preset track. This design not only ensures smooth operation but also effectively avoids frictional wear between components, extending the overall service life. Meanwhile, during the pulling-out process, users can clearly feel the changes in resistance from within the structure. This feedback mechanism helps users accurately determine the transition point between the locking and unloading states, making the operation more intuitive and controllable. In addition, the rotating part 23 and the locking connection seat 22 can be stably held in the preset position after being pulled out, which not only facilitates the user's subsequent unloading operation but also ensures the stability and safety of the entire mechanism during operation.

[0059] Furthermore, the locking connector 22 has a connecting groove 222, which connects to the receiving groove 221. The groove wall of the connecting groove 222 has a limiting step 223 protruding. The switch assembly 20 also includes a spring 24, which is sleeved on the connecting shaft 232. One end of the spring 24 abuts against the limiting step 223, and the other end abuts against the rotating part 231.

[0060] The elasticity of spring 24 ensures a tighter and more secure engagement between the locking part 233 and the limiting member 11 in the locked state, preventing the locking part 233 from accidentally disengaging from the limiting member 11 due to external factors such as vibration. This prevents the end cap 21 from accidentally opening and causing coffee bean leakage, thus enhancing the stability and reliability of the locked state. Secondly, spring 24 acts as a buffer and assists in resetting during state switching. When the user rotates the rotating part 231 to disengage the locking part 233 from the limiting member 11, spring 24 is compressed, reducing the force exerted by the user during operation. When the user completes the bean unloading operation and releases the rotating part 231, the elasticity of spring 24 pushes the rotating part 231 back to its original position, facilitating the establishment of the next locked state, simplifying the operation steps, and improving the convenience of operation. In addition, the spring 24 makes the fit between the rotating part 23 and the locking connecting seat 22 tighter, reducing the gap between components, reducing noise during operation, and making the bean unloading mechanism 100 operate more smoothly and quietly.

[0061] Furthermore, the inner wall of the bean unloading tube 10 is provided with a guide block 13, and the side wall of the switch assembly 20 is provided with a guide groove 25 that cooperates with the guide block 13, and the guide block 13 is slidably connected in the guide groove 25.

[0062] The cooperation between guide block 13 and guide groove 25 restricts the movement trajectory of switch assembly 20, allowing it to slide only along the axial direction of unloading tube 10. This prevents the switch assembly 20 from deviating, shaking, or jamming during sliding, ensuring that end cap 21 can accurately close or open the bean outlet. Secondly, it reduces friction between switch assembly 20 and the inner wall of unloading tube 10. Because the cooperation between guide block 13 and guide groove 25 provides support and guidance, the contact area between switch assembly 20 and the inner wall of unloading tube 10 is reduced, lowering frictional resistance and making the sliding of switch assembly 20 smoother and less strenuous, thus extending the service life of the component. Furthermore, this design improves the reliability of unloading mechanism 100. Even under long-term frequent use, the guiding cooperation maintains good performance, ensuring that the sliding of switch assembly 20 remains stable and reliable, and that the normal operation of unloading mechanism 100 is not affected by component wear.

[0063] Furthermore, the limiting member 11 and the bean unloading tube 10 are integrally formed.

[0064] The one-piece molding structure eliminates the connection gap between the limiting component 11 and the unloading tube 10, greatly improving the connection strength and enabling it to withstand greater forces. It also reduces the likelihood of the limiting component 11 loosening or falling off, ensuring the reliability of the rotating component 23's engagement in the locked state. Simultaneously, this structure reduces potential assembly errors, resulting in more precise positioning of the limiting component 11 within the unloading tube 10. This ensures accurate engagement with the rotating component 23's engagement part 233, preventing issues such as insecure locking or poor unloading due to positional deviations. Furthermore, the one-piece molding structure simplifies the manufacturing process, eliminating the need to separately manufacture and install the limiting component 11. This reduces assembly costs and time, improves production efficiency, and also reduces the number of parts, facilitating standardized product production.

[0065] Furthermore, the bean unloading mechanism 100 also includes an outer cover assembly 40, which includes a base 41, a rotating shaft 42, and an outer flip cover 43. The base 41 is connected to the outer surface of the machine body 200 and is arranged around the periphery of the bean unloading tube 10. The rotating shaft 42 is connected to the base 41, and the outer flip cover 43 is rotatably connected to the rotating shaft 42 to open or close the base 41 and the bean unloading tube 10.

[0066] First, the outer cover assembly 40 provides effective protection. The flip-top cover 43 closes the end of the unloading tube 10 when not unloading coffee beans, preventing dust, impurities, and moisture from entering the tube. This avoids these contaminants corroding the internal components and prevents them from contacting the coffee beans and affecting coffee quality. Simultaneously, the outer cover assembly 40 provides physical protection to the end of the unloading tube 10, reducing the possibility of damage from external impacts and extending the service life of the unloading mechanism 100. Second, it improves the overall aesthetics of the coffee roaster 1000. The outer cover assembly 40 conceals the end of the unloading tube 10, making the roaster's appearance cleaner and more uniform, enhancing the product's visual appeal. Furthermore, the flip-top cover 43 is connected via a pivot 42, making operation simple and convenient. Users can easily open or close it by simply flipping it, echoing the overall ease of operation of the unloading mechanism 100 and further enhancing the user experience. In addition, the base 41 is arranged around the bean unloading tube 10, which enhances the stability of the connection between the outer cover assembly 40 and the machine body 200 and ensures the smoothness of the outer flip cover 43 during opening and closing.

[0067] Specifically, the base 41 is a ring structure, which is fixedly connected to the outer surface of the machine body 200 by bolts and surrounds the end of the bean unloading tube 10; the rotating shaft 42 is fixedly connected to one side of the base 41, and the outer cover 43 is rotatably connected to the base 41 through the rotating shaft 42. A rubber sealing element 44 is pasted on the side surface of the outer cover 43 facing the base 41. The sealing element 44 has a relief groove 441 that is adapted to the rotating part 231. When the outer cover 43 is closed, the rotating part 231 is located in the relief groove 441, and the sealing element 44 abuts against the end of the bean unloading tube 10.

[0068] Furthermore, the outer cover assembly 40 also includes a sealing element 44, which is connected to the side surface of the outer flap 43 facing the base 41. When the outer flap 43 covers the bean unloading tube 10, the sealing element 44 abuts against the end of the bean unloading tube 10.

[0069] When the outer flap 43 is closed, the seal 44 abuts against the end of the unloading tube 10, effectively filling the gap between the outer flap 43 and the unloading tube 10. This significantly improves the sealing effect at the end of the unloading tube 10, preventing external dust and moisture from entering the interior of the unloading tube 10 and better protecting the cleanliness of the internal environment of the unloading tube 10. It also prevents coffee beans from being contaminated during storage. Simultaneously, the seal 44 also acts as a buffer. When the outer flap 43 is closed, the seal 44 contacts the end of the unloading tube 10, reducing collisions and friction between them, lowering noise, reducing wear on components, and extending the service life of the outer flap assembly 40 and the unloading tube 10. Furthermore, the seal 44 ensures a tighter seal when the outer flap 43 is closed, preventing it from opening on its own due to vibration or other reasons, thus enhancing the reliability of the outer flap assembly 40.

[0070] Furthermore, the seal 44 is made of an elastic material, such as rubber or silicone. This material has good flexibility and sealing properties, and can adapt to the ends of the bean discharge tube 10 of different sizes and shapes to ensure a sealing effect. At the same time, the elastic material also has certain anti-aging properties, which can maintain the elasticity and sealing performance of the seal 44 for a long time, extending its service life. In addition, the elastic material is easy to process and mold, and the shape and size of the seal 44 can be customized according to actual needs, improving the applicability and flexibility of the seal 44. In another embodiment, the seal 44 can also be configured as a detachable structure, making it convenient for users to replace or clean it as needed, maintaining the cleanliness and sealing performance of the seal 44, and also improving user convenience.

[0071] Furthermore, the sealing member 44 is provided with a relief groove 441. When the outer flap 43 covers the bean unloading pipe 10, the rotating member 23 is located in the relief groove 441.

[0072] First, the clearance groove 441 ensures that the sealing performance of the outer cover assembly 40 is not affected when closed. The clearance groove 441 provides space for the portion of the rotating component 23 protruding from the unloading tube 10, allowing the outer cover 43 to close smoothly and the sealing component 44 to fully contact the end of the unloading tube 10. The presence of the rotating component 23 prevents the sealing component 44 from failing to fit tightly, ensuring the integrity of the seal. Second, it avoids interference between the rotating component 23 and the sealing component 44. When closing the outer cover 43, the rotating component 23 is located within the clearance groove 441, preventing collisions or friction between them. This protects the structural integrity of both the rotating component 23 and the sealing component 44, reduces wear, and extends their service life. Simultaneously, this design makes the closing of the outer cover assembly 40 smoother, preventing jamming due to obstruction by the rotating component 23 and ensuring ease of operation. Furthermore, the clearance groove 441 reflects meticulous design, making the cooperation between components more coordinated and enhancing the overall aesthetics and practicality of the unloading mechanism 100.

[0073] Specific operating procedures:

[0074] Locking Operation: Before roasting coffee beans in the coffee roaster 1000, the unloading mechanism 100 must be placed in the locked position. At this time, push the rotating part 231 to move the locking connecting seat 22 and the end cap 21 along the unloading tube 10 towards the bean outlet until the sealing gasket of the end cap 21 tightly adheres to the bean outlet, sealing it. Then, rotate the rotating part 231 to make the locking part 233 rotate out of the receiving groove 221 and protrude outside the receiving groove 221. The locking part 233 engages with the limiting member 11. Under the elastic force of the spring 24, the locking part 233 and the limiting member 11 are in close contact, achieving locking. Finally, rotate the outer flip cover 43 to rotate it around the rotating shaft 42 to the closed position, where the sealing member 44 abuts against the end of the unloading tube 10, completing the locking operation.

[0075] Unloading Operation: After the coffee beans are roasted, unloading is required. First, rotate the outer flap 43 to open it around the pivot 42, exposing the rotating part 231. Next, grasp the arc-shaped surface 2311 of the rotating part 231 and rotate it against the spring force 24, causing the locking part 233 to rotate into the receiving slot 221, disengaging the locking part 233 from the limiting member 11. Then, pull the rotating part 231 outward, causing the connecting shaft 232, locking connecting seat 22, and end cap 21 to slide along the unloading tube 10 away from the bean outlet. The end cap 21 then opens the bean outlet, and the coffee beans are discharged through the unloading tube 10 to the outside of the machine body 200 under gravity.

[0076] Restoring the locking state: After unloading the beans, push the rotating part 231 to slide the end cap 21 towards the bean outlet until the sealing gasket re-adheres to the bean outlet. Rotate the rotating part 231 so that the locking part 233 protrudes out of the receiving groove 221 and engages with the limiting member 11, remaining locked under the action of the spring 24. Finally, rotate the outer flip cover 43 to close it, and the sealing member 44 abuts against the end of the bean unloading tube 10, restoring the locking state and awaiting the next bean roasting operation.

[0077] This utility model also proposes a coffee roaster 1000, such as Figure 9 - Figure 11 As shown, the coffee roaster 1000 includes a bean unloading mechanism 100, a machine body 200, and a roasting tray 300. The specific structure of the bean unloading mechanism 100 is as described in the above embodiments. Since the coffee roaster 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0078] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

[0079] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A bean unloading mechanism for a coffee roaster, the coffee roaster comprising a roasting tray and a body, characterized in that, The bean unloading mechanism includes: The bean unloading tube has one end connected to the bean outlet of the drying tray and the other end connected to the outside of the machine body. A limiting component is connected inside the bean unloading tube. A switch assembly is slidably connected inside the bean unloading tube and located on one side of the limiting member. The switch assembly includes an end cap, a locking connecting seat, and a rotating member. One end of the locking connecting seat is connected to the end cap, and the rotating member is movably connected to and passes through the other end of the locking connecting seat. The rotating member partially protrudes from the locking connecting seat. The bean unloading mechanism has a locked state where the end cap closes the bean outlet and the rotating member is engaged with the limiting member, and a bean unloading state where the rotating member is rotated so that its protruding part is disengaged from the limiting member, and the rotating member and the locking connecting seat are pulled out along the other end of the bean unloading tube to drive the end cap to open the bean outlet.

2. The bean unloading mechanism according to claim 1, characterized in that, The rotating component includes a rotating part, a connecting shaft, and a snap-fit ​​part. The rotating part is connected to one end of the connecting shaft, and the snap-fit ​​part is connected to the other end of the connecting shaft. The locking connecting seat has a storage groove on the side facing the limiting component. The connecting shaft passes through the locking connecting seat, and the rotating part is located at the other end of the locking connecting seat. The snap-fit ​​part is movably disposed in the storage groove. When in the locked state, the snap-fit ​​part protrudes outside the storage groove, and when in the unloading state, the snap-fit ​​part is stored in the storage groove.

3. The bean unloading mechanism according to claim 2, characterized in that, The side surface of the rotating part is recessed with an arc-shaped surface.

4. The bean unloading mechanism according to claim 2, characterized in that, The locking connector has a connecting groove that connects to the storage groove. The groove wall of the connecting groove has a limiting step. The switch assembly also includes a spring that is sleeved on the connecting shaft. One end of the spring abuts against the limiting step, and the other end abuts against the rotating part.

5. The bean unloading mechanism according to claim 1, characterized in that, The inner wall of the bean unloading tube is provided with a guide block, and the side wall of the switch assembly is provided with a guide groove that cooperates with the guide block. The guide block is slidably connected in the guide groove.

6. The bean unloading mechanism according to claim 1, characterized in that, The limiting component and the bean unloading tube are integrally formed.

7. The bean unloading mechanism according to claim 1, characterized in that, The bean unloading mechanism also includes an outer cover assembly, which includes a base, a rotating shaft, and an outer flip cover. The base is connected to the outer surface of the machine body and is arranged around the periphery of the bean unloading tube. The rotating shaft is connected to the base, and the outer flip cover is rotatably connected to the rotating shaft to open or close the base and the bean unloading tube.

8. A bean unloading mechanism according to claim 7, characterized in that, The outer cover assembly also includes a seal connected to the side surface of the outer cover facing the base. When the outer cover is placed over the unloading pipe, the seal abuts against the end of the unloading pipe.

9. A bean unloading mechanism according to claim 8, characterized in that, The sealing element has a clearance groove, and when the outer flap is placed on the bean unloading pipe, the rotating element is located in the clearance groove.

10. A coffee roaster, characterized in that, It includes a body, a roasting tray, and a bean unloading mechanism as described in any one of claims 1 to 9, wherein one end of the bean unloading mechanism is connected to the roasting tray and the other end is connected to the body.

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