Built-in stirring coffee residue drying device
By employing a multi-directional stirring and tapping mechanism in the built-in coffee grounds drying device, the problems of uneven stirring and clogging are solved, achieving efficient coffee grounds drying and discharge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-03-31
AI Technical Summary
Existing built-in stirring coffee grounds drying devices suffer from uneven stirring and dead zones, resulting in low drying efficiency and coffee grounds that easily clump together and clog the discharge port.
The design employs multiple heating rods combined with an active and driven bevel gear-driven stirring shaft and sleeve to achieve thorough mixing and tumbling of coffee grounds in multiple directions, while a tapping mechanism prevents clogging.
It improves the uniformity of coffee grounds mixing and drying efficiency, prevents clogging of the outlet, and meets the needs of users.
Smart Images
Figure CN224065811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee grounds drying technology with built-in stirring, and more particularly to a coffee grounds drying device with built-in stirring. Background Technology
[0002] With the growing popularity of coffee culture, people are becoming increasingly demanding in their pursuit of coffee quality, and various coffee-making methods are emerging one after another. As a result, a large amount of coffee grounds are generated. If these coffee grounds are discarded directly, it will not only waste resources but also put pressure on the environment.
[0003] Coffee grounds hold many potential values. They can be used to make natural fertilizer, providing abundant nutrients for plant growth; they can be used as a deodorizer, effectively absorbing odors; and they can be used in handmade soap making, adding a unique exfoliating effect. However, drying coffee grounds is a crucial step before use. Traditional drying methods are inefficient and ineffective. Therefore, a coffee grounds drying device with built-in stirring is needed to improve efficiency.
[0004] Currently, commercially available built-in coffee grounds drying devices mainly consist of a drying chamber, a stirring component, and a heating component. Coffee grounds are poured into the drying chamber, and the heat generated by the heating component is transferred to the chamber through heat conduction to dry the grounds. The stirring component then agitates the grounds to accelerate the drying process. However, coffee grounds with high moisture content tend to clump together, affecting drying efficiency. To solve this problem, a powerful stirring blade is usually used to break up the clumps. However, ordinary stirring mechanisms only stir in one direction, resulting in insufficient mixing of coffee grounds in different areas, creating mixing dead zones. This prevents the coffee grounds from being fully mixed and agitated in multiple directions, reducing the stirring effect and failing to meet user needs. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a built-in stirring coffee grounds drying device, which aims to improve the problem of uneven drying of coffee grounds in the prior art.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a built-in coffee grounds drying device with built-in stirring, comprising a tank body, a jacketed section at the top of the tank body, multiple heating rods fixedly connected at equal intervals inside the jacketed section, a discharge pipe connected to the bottom of the tank body, a top cover at the top of the tank body, an inner cavity inside the top cover, a feed pipe fixedly connected to the top left side of the top cover, the bottom end of the feed pipe penetrating the top cover, a first motor fixedly connected to the inner right side of the inner cavity, and a drive bevel gear fixedly connected to the output end of the first motor. A stirring shaft is rotatably connected to the top inner side of the container, and a sleeve is rotatably connected to the bottom inner side of the inner cavity. The bottom end of the sleeve penetrates the inner cavity. Driven bevel gears are fixedly connected to the upper outer walls of both the stirring shaft and the sleeve. The two driven bevel gears are respectively meshed with the upper and lower sides of the driving bevel gear. The bottom end of the stirring shaft penetrates the sleeve. Multiple stirring blades are fixedly connected at equal intervals to the lower middle parts of the left and right sides of the stirring shaft. Scrapers are fixedly connected to the lower middle parts of the left and right sides of the sleeve. A tapping mechanism is provided at the bottom of the container to prevent coffee grounds from clogging during dispensing.
[0007] As a further description of the above technical solution:
[0008] The striking mechanism includes a connecting plate fixedly connected to the lower front part of the tank. A housing is fixedly connected to the bottom rear side of the connecting plate. A second motor is fixedly connected to the middle right side of the housing. The output end of the second motor passes through the housing and is fixedly connected to a worm gear. A transmission rod is rotatably connected to the bottom inner side of the housing. A worm wheel is fixedly connected to the lower outer wall of the transmission rod. The worm gear and the worm wheel are meshed together. A disc is fixedly connected to the top end of the transmission rod, passing through the housing. A sliding pin is fixedly connected to the rear side of the top end of the disc. A rotating block is rotatably connected to the front top of the housing. A striking rod is fixedly connected to the rear side of the rotating block. A groove is formed in the middle of the striking rod, and the sliding pin is slidably connected inside the groove.
[0009] As a further description of the above technical solution:
[0010] A threaded protrusion is fixedly connected to the top of the outer side of the feed pipe, and a pipe cap is provided at the top of the feed pipe. A threaded groove is opened on the inner side of the pipe cap, and the pipe cap is threadedly connected to the feed pipe.
[0011] As a further description of the above technical solution:
[0012] An exhaust pipe is fixedly connected to the top rear side of the top cover, the bottom of the exhaust pipe penetrates through the top cover, and a filter screen is fixedly connected to the top inner side of the exhaust pipe.
[0013] As a further description of the above technical solution:
[0014] A handle is fixedly connected to the center of the top of the top cover, and a protective pad is fixedly connected to the outside of the handle.
[0015] As a further description of the above technical solution:
[0016] A controller is fixedly connected to the front side of the outer wall of the tank, and the controller is electrically connected to the heating rod, the first motor and the second motor respectively.
[0017] As a further description of the above technical solution:
[0018] Support legs are fixedly connected at equal intervals around the bottom of the tank, and an electric valve is installed on the top of the outer side of the discharge pipe.
[0019] As a further description of the above technical solution:
[0020] Each of the multiple support legs has a pad fixedly connected to both sides, and each of the multiple pads has a screw threaded to one side, with one end of the screw penetrating the pad and threadedly connected to the tank body.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, when it is necessary to stir and dry coffee grounds, the coffee grounds are poured into the tank through the feed inlet, and then the heating rod is turned on by the controller to heat the coffee grounds. Subsequently, the first motor is started to drive the active bevel gear to rotate, which in turn drives the first driven bevel gear and the second driven bevel gear to rotate in opposite directions. This, in turn, drives the stirring shaft and the scraper on the sleeve to rotate in opposite directions, which allows the coffee grounds to be fully mixed and turned in multiple directions, improving the stirring effect and meeting the needs of users.
[0023] 2. In this utility model, when the dried coffee grounds are stirred evenly and poured out, the powder bridging causes blockage at the outlet. By starting the second motor, the worm gear is driven to rotate, which in turn drives the worm wheel to rotate. Subsequently, the worm wheel drives the disc to rotate through the transmission shaft. When the disc rotates, the sliding pin moves back and forth in the groove, thereby driving the swinging of the striking rod to achieve a striking effect. Vibration is used to prevent the coffee grounds from blocking the outlet. Attached Figure Description
[0024] Figure 1 This is a perspective view of the built-in stirring coffee grounds drying device proposed in this utility model;
[0025] Figure 2 This is a structural exploded view of the built-in stirring coffee grounds drying device proposed in this utility model;
[0026] Figure 3 This is a partial structural cross-sectional view of the built-in stirring coffee grounds drying device proposed in this utility model;
[0027] Figure 4 This is a partial structural exploded view of the built-in stirring coffee grounds drying device proposed in this utility model;
[0028] Figure 5 This is a cross-sectional view of the striking mechanism of the built-in coffee grounds drying device proposed in this utility model.
[0029] Legend:
[0030] 1. Tank body; 2. Striking mechanism; 201. Connecting plate; 202. Shell; 203. Second motor; 204. Worm gear; 205. Transmission rod; 206. Worm wheel; 207. Disc; 208. Rotating block; 209. Striking rod; 210. Sliding pin; 211. Slide groove; 3. Jacket; 4. Heating rod; 5. Top cover; 6. Inner cavity; 7. First motor; 8. Driving bevel gear; 9. Stirring shaft; 10. Driven bevel gear; 11. Sleeve; 12. Scraper; 13. Stirring blade; 14. Discharge pipe; 15. Exhaust pipe; 16. Filter screen; 17. Feed pipe; 18. Pipe cap; 19. Threaded protrusion; 20. Threaded groove; 21. Handle; 22. Protective pad; 23. Controller; 24. Electric valve; 25. Support leg; 26. Pad; 27. Screw. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a built-in coffee grounds drying device, comprising a tank 1, a jacket 3 at the top of the tank 1, and multiple heating rods 4 fixedly connected at equal intervals inside the jacket 3 to heat the inside of the tank 1. A discharge pipe 14 is connected to the bottom of the tank 1, through which the dried coffee grounds are discharged. A top cover 5 is provided at the top of the tank 1, and an inner cavity 6 is formed inside the top cover 5. A feed pipe 17 is fixedly connected to the top left side of the top cover 5 for pouring coffee grounds into the tank 1 for drying and stirring. The bottom end of the feed pipe 17 penetrates the top cover 5. A first motor 7 is fixedly connected to the right side of the inner cavity 6, and a drive bevel gear 8 is fixedly connected to the output end of the first motor 7, driving the drive bevel gear 8 to rotate. A stirring shaft 9 is rotatably connected to the top inner side of the inner cavity 6, and a sleeve is rotatably connected to the bottom inner side of the inner cavity 6. 11. The bottom end of the sleeve 11 penetrates the inner cavity 6. The upper side of the outer wall of the stirring shaft 9 and the sleeve 11 are both fixedly connected with driven bevel gears 10. The two driven bevel gears 10 are respectively meshed with the upper and lower sides of the driving bevel gear 8. The rotation of the driving bevel gear 8 can drive the upper and lower driven bevel gears 10 to rotate in the opposite direction. The bottom end of the stirring shaft 9 penetrates the sleeve 11. Multiple stirring blades 13 are fixedly connected at equal intervals on the lower middle part of the left and right sides of the stirring shaft 9, which can stir the coffee grounds. Scrapers 12 are fixedly connected on the lower middle part of the left and right sides of the sleeve 11, which can scrape the coffee grounds off the cylinder wall. The top of the outer side of the feed pipe 17 is fixedly connected with a threaded protrusion 19. The top of the feed pipe 17 is provided with a pipe cap 18. The inner side of the pipe cap 18 is provided with a threaded groove 20. The pipe cap 18 is threadedly connected to the feed pipe 17, which can cover the feed port to prevent foreign objects from entering the tank 1.
[0033] Specifically, after the coffee grounds are poured into the tank 1 through the feed pipe 17, the first motor 7 is started to drive the active bevel gear 8 to rotate. The active bevel gear 8 then drives the driven bevel gears 10 on both sides to rotate in the opposite direction. The driven bevel gears 10 on both sides drive the stirring shaft 9 and the sleeve 11 to rotate in the opposite direction, so that the scraper 12 and the stirring blade 13 can rotate in two directions at the same time. The scraper 12 can also scrape off the residual coffee grounds on the inner wall of the tank 1, so that the coffee grounds can be fully mixed and turned in multiple directions. The feed pipe 17 is connected to the pipe cap 18 through a thread to cover the feed port and prevent foreign objects from entering the tank 1.
[0034] Reference Figure 1 and Figure 5The striking mechanism 2 includes a connecting plate 201, which is fixedly connected to the lower front part of the tank 1. A housing 202 is fixedly connected to the bottom rear side of the connecting plate 201. A second motor 203 is fixedly connected to the middle right side of the housing 202. The output end of the second motor 203 passes through the housing 202 and is fixedly connected to a worm gear 204. The second motor 203 can drive the worm gear 204 to rotate. A transmission rod 205 is rotatably connected to the bottom inner side of the housing 202. A worm wheel 206 is fixedly connected to the lower outer wall of the transmission rod 205. The worm gear 204 and the worm wheel 206 are meshed together. Rotation of the worm wheel 206 can drive the transmission rod 205 to rotate. The top end of the moving rod 205 passes through the housing 202 and is fixedly connected to a disc 207. A sliding pin 210 is fixedly connected to the rear side of the top end of the disc 207. A rotating block 208 is rotatably connected to the front side of the top of the housing 202. A striking rod 209 is fixedly connected to the rear side of the rotating block 208. The striking rod 209 can rotate around the rotating block 208. A groove 211 is provided in the middle of the striking rod 209. The sliding pin 210 is slidably connected inside the groove 211. A controller 23 is fixedly connected to the front side of the outer wall of the tank 1. The controller 23 is electrically connected to the heating rod 4, the first motor 7, and the second motor 203 respectively, and is used to control the operation of the device.
[0035] Specifically, when the dried coffee grounds are discharged from the discharge pipe 14 and become blocked, the second motor 203 can be started to drive the worm gear 204 to rotate. When the worm gear 204 rotates, it drives the meshing worm wheel 206 to rotate. The worm wheel 206 drives the disc 207 to rotate through the transmission rod 205. When the disc 207 rotates, the sliding pin 210 can slide in the slide groove 211. One end of the striking rod 209 is connected and fixed to the rotating block 208, so that the striking rod 209 swings around the rotating block 208 as the center, achieving the effect of striking the discharge pipe 14. The vibration prevents the coffee grounds from clogging the discharge port. The controller 23 can control the operating status of the heating rod 4, the first motor 7 and the second motor 203.
[0036] Reference Figure 1 and Figure 2 An exhaust pipe 15 is fixedly connected to the rear side of the top cover 5. The bottom of the exhaust pipe 15 penetrates the top cover 5, and the water vapor during drying can be discharged from the exhaust pipe 15. A filter screen 16 is fixedly connected to the top of the inner side of the exhaust pipe 15 to prevent foreign objects from entering the tank 1 through the exhaust pipe 15. A handle 21 is fixedly connected to the middle of the top of the top cover 5, and a protective pad 22 is fixedly connected to the outer side of the handle 21.
[0037] Specifically, when the coffee grounds are dried inside the canister 1, the moisture generated can be discharged out through the exhaust pipe 15, the filter screen 16 can prevent foreign objects from entering the canister 1 through the exhaust pipe 15, the handle 21 can lift the top cover 5 when it is necessary to clean or inspect the inside of the canister 1, and the pad 22 can protect and prevent slipping of the handle 21.
[0038] Reference Figure 1 and Figure 3 Support legs 25 are fixedly connected at equal intervals around the bottom of the tank body 1. An electric valve 24 is installed on the top of the outer side of the discharge pipe 14, which can control the opening and closing of the discharge pipe 14. Pads 26 are fixedly connected to both sides of the multiple support legs 25. Screws 27 are threaded to one side of the multiple pads 26. One end of the screw 27 passes through the pad 26 and is threaded to the tank body 1, which can make the support legs 25 more stably connected to the tank body 1.
[0039] Specifically, the support leg 25 can support and stabilize the tank 1. After the device finishes drying, the outlet can be opened by the electric valve 24 to discharge the coffee grounds. The pad 26 and screw 27 can make the connection between the support leg 25 and the tank 1 more stable.
[0040] Working principle: When the device needs to stir and dry coffee grounds, the coffee grounds are poured into the tank 1 through the feed pipe 17. The first motor 7 is started to drive the active bevel gear 8 to rotate. The active bevel gear 8 is meshed and simultaneously drives the driven bevel gears 10 on the upper and lower sides to rotate in the opposite direction. The upper driven bevel gear 10 drives the stirring shaft 9 to rotate. The stirring blades 13 below the stirring shaft 9 will stir the coffee grounds. At the same time, the lower driven bevel gear 10 drives the scrapers 12 on both sides of the sleeve 11 to rotate in the opposite direction to the stirring shaft 9. The scrapers 12 and the stirring blades 13 rotate in different directions on the same axis, which can generate more complex and stronger fluid motion, allowing the coffee grounds to be fully mixed and turned in multiple directions, thus improving the stirring effect.
[0041] Furthermore, when coffee grounds cause bridging at the outlet, the second motor 203 is activated to rotate the worm gear 204. The worm gear 204 then rotates the meshing worm wheel 206. The worm wheel 206 rotates the disc 207 via the transmission rod 205. The rotation of the disc 207 causes the top sliding pin 210 to slide inside the groove 211 of the striking rod 209, thereby causing the striking rod 209 to swing left and right around the rotating block 208 to strike the outlet pipe 14. This vibration prevents coffee grounds from clogging the outlet.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A coffee residue drying device with built-in stirring, comprising a tank body (1), characterized in that: The top of the tank body (1) is provided with a sandwich layer (3), a plurality of heating rods (4) are fixedly connected inside the sandwich layer (3) at equal intervals, the bottom of the tank body (1) is communicated with a discharge pipe (14), the top of the tank body (1) is provided with a top cover (5), the inside of the top cover (5) is provided with an inner cavity (6), the top left side of the top cover (5) is fixedly connected with a feeding pipe (17), the bottom end of the feeding pipe (17) penetrates the top cover (5), the inside right side of the inner cavity (6) is fixedly connected with a first motor (7), the output end of the first motor (7) is fixedly connected with a driving bevel gear (8), the inside top end of the inner cavity (6) is rotatably connected with a stirring shaft (9), the inside bottom end of the inner cavity (6) is rotatably connected with a sleeve (11), the bottom end of the sleeve (11) penetrates the inner cavity (6), the outer wall upper sides of the stirring shaft (9) and the sleeve (11) are fixedly connected with driven bevel gears (10), the two driven bevel gears (10) are respectively meshingly connected with the upper and lower sides of the driving bevel gear (8), the bottom end of the stirring shaft (9) penetrates the sleeve (11), the left and right side middle lower parts of the stirring shaft (9) are fixedly connected with a plurality of stirring blades (13) at equal intervals, the left and right side middle lower parts of the sleeve (11) are fixedly connected with scrapers (12), the bottom of the tank body (1) is provided with a knocking mechanism (2), the knocking mechanism (2) is convenient for preventing the coffee residue from being blocked when discharging.
2. The built-in coffee grounds drying apparatus with stirring function according to claim 1, characterized in that: The knocking mechanism (2) comprises a connecting plate (201), the connecting plate (201) is fixedly connected to the front side middle lower part of the tank body (1), the rear side bottom of the connecting plate (201) is fixedly connected with a shell (202), the right side middle part of the shell (202) is fixedly connected with a second motor (203), the output end of the second motor (203) penetrates the shell (202) and is fixedly connected with a worm (204), the inside bottom end of the shell (202) is rotatably connected with a transmission rod (205), the outer wall lower side of the transmission rod (205) is fixedly connected with a worm wheel (206), the worm (204) is meshingly connected with the worm wheel (206), the top end of the transmission rod (205) penetrates the shell (202) and is fixedly connected with a disc (207), the top end rear side of the disc (207) is fixedly connected with a sliding pin (210), the top front side of the shell (202) is rotatably connected with a rotating block (208), the rear side of the rotating block (208) is fixedly connected with a knocking rod (209), the middle part of the knocking rod (209) is provided with a sliding groove (211), and the sliding pin (210) is slidingly connected in the sliding groove (211).
3. The built-in coffee grounds drying apparatus with stirring function according to claim 1, characterized in that: The outer side top of the feeding pipe (17) is fixedly connected with a threaded protrusion (19), the top of the feeding pipe (17) is provided with a pipe mouth cover (18), the inside of the pipe mouth cover (18) is provided with a threaded groove (20), and the pipe mouth cover (18) is threadedly connected with the feeding pipe (17).
4. The built-in coffee grounds drying apparatus with stirring function according to claim 1, characterized in that: The top rear side of the top cover (5) is fixedly connected with an exhaust pipe (15), the bottom of the exhaust pipe (15) penetrates the top cover (5), and the inner side top of the exhaust pipe (15) is fixedly connected with a filter screen (16).
5. The built-in coffee grounds drying apparatus with stirring according to claim 1, characterized in that: The top end middle of the top cover (5) is fixedly connected with a handle (21), and the outer side of the handle (21) is fixedly connected with a protective pad (22).
6. The built-in coffee grounds drying apparatus with stirring according to claim 1, characterized in that: The outer wall front side of the tank body (1) is fixedly connected with a controller (23), and the controller (23) is electrically connected with the heating rod (4), the first motor (7) and the second motor (203) respectively.
7. The built-in coffee grounds drying apparatus with stirring according to claim 1, characterized in that: The bottom of the tank body (1) is fixedly connected with support legs (25) at equal intervals around, and the outer side top of the discharge pipe (14) is provided with an electric valve (24).
8. The built-in coffee grounds drying apparatus with stirring according to claim 7, characterized in that: The two sides of the plurality of support legs (25) are fixedly connected with pad plates (26), one side of the plurality of pad plates (26) is threadedly connected with screws (27), one end of the screws (27) penetrates the pad plate (26) and is threadedly connected with the tank body (1).