Automatic opening and closing stock bin grinder
By designing an automatic opening and closing hopper structure in the pepper grinder, and utilizing a coil spring and locking mechanism, the leakage problem during hopper disassembly is solved, enabling convenient pepper powder sealing and disassembly operations.
Patent Information
- Application Number
- CN202520327708.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing pepper grinders are prone to pepper leakage from the bottom opening after the hopper is separated, and the disassembly process is troublesome.
An automatic hopper grinder was designed. By setting a hopper cover plate and a spring mechanism at the bottom of the hopper, the second discharge port is automatically closed by the elastic force of the spring. Combined with the drive component and the locking block structure, the hopper can be easily disassembled and closed.
It achieves automatic sealing of the hopper, preventing pepper leakage, simplifies the disassembly process, and improves ease of use.
Smart Images

Figure CN223930010U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of grinding technology, and in particular to an automatic switching hopper grinding machine. Background Technology
[0002] A pepper grinder is a kitchen appliance used to grind peppercorns and other spices. While we can buy pre-processed pepper powder and seasoned salt in the market, the flavor is quite different from freshly ground pepper, so people now prefer to use a pepper grinder to grind their own peppers.
[0003] In existing pepper grinders, some of the hoppers can be separated from the machine body, but after the hoppers are separated, the bottom opening will leak the remaining pepper, which needs to be caught in a container beforehand, making disassembly quite troublesome. Utility Model Content
[0004] This disclosure provides an automatic switching hopper grinder to solve a technical problem recognized by the inventors.
[0005] This disclosure provides an automatic switching hopper grinder, comprising: a machine body housing, an internal feeding channel of the machine body housing, a first feeding port at the top of the machine body housing that communicates with the feeding channel, a hopper detachably connected to the top of the machine body housing, a second feeding port at the bottom of the hopper, a connecting block fixedly connected to the bottom of the hopper, a connecting shaft detachably connected to the connecting block, a hopper cover plate rotatably connected to the outside of the connecting shaft, a third feeding port at the hopper cover plate, a coil spring sleeved on the outside of the connecting shaft, one end of the coil spring abutting against the hopper cover plate, a drive assembly inside the machine body, and a grinding assembly at the bottom of the machine body housing, the drive assembly being drive-connected to the grinding assembly.
[0006] Preferably, an "L"-shaped slot is provided on the outer side of the bottom of the hopper, and a locking block is fixedly connected to the inner side of the top of the machine body shell at the position corresponding to the slot.
[0007] Preferably, the drive assembly includes a battery, a drive circuit board, a drive motor, and a drive rod. The drive circuit board is electrically connected to the battery and the drive motor. The output shaft of the drive motor is drivenly connected to the drive rod, and the drive rod is drivenly connected to the grinding assembly.
[0008] Preferably, the grinding assembly includes a grinding bracket, an outer grinding core, and an inner grinding core. The grinding bracket is fixedly connected to the bottom of the machine body shell. The outer grinding core is embedded inside the grinding bracket. The inner grinding core is embedded inside the outer grinding core and is clearance-fitted with the outer grinding core. A grinding core fixing component is provided inside the inner grinding core. One end of the drive rod passes through the grinding core fixing component and is fixed by a fixing screw sleeve.
[0009] Preferably, the top of the hopper is provided with a feeding port, the feeding port is detachably connected to a top cover, and a sealing ring is provided on the inner side of the top cover.
[0010] Preferably, it also includes a charging base, which has a plurality of charging slots.
[0011] Preferably, a charging circuit board is embedded inside the charging base, and a charging interface is integrated on the charging circuit board. A first charging induction coil is disposed inside the charging base near the charging slot. A second charging induction coil is fixedly connected to the bottom of the outer shell of the device. A decorative shell covers the outside of the second charging induction coil. The second charging induction coil is electrically connected to the drive circuit board.
[0012] Preferably, the drive circuit board integrates a start button, which is embedded in the surface of the housing.
[0013] Preferably, the drive circuit board integrates an indicator light, which is embedded in the surface of the housing.
[0014] The main beneficial effects of this disclosure are as follows: By setting a hopper cover plate at the bottom of the hopper and resetting it by a coil spring, when the hopper is disassembled, the coil spring drives the hopper cover plate to rotate, causing the second and third discharge ports to be misaligned, thereby closing the second discharge port and automatically closing the hopper, which facilitates the disassembly of the hopper and prevents the leakage of remaining pepper.
[0015] It should be understood that both the foregoing general description and the following detailed description are for illustrative purposes and do not necessarily limit the scope of this disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of this disclosure. Furthermore, the specification and drawings serve to explain the principles of this disclosure. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or 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 disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the grinder according to an embodiment of the present disclosure;
[0018] Figure 2 This is a cross-sectional view of the grinder structure according to an embodiment of the present disclosure;
[0019] Figure 3 This is an exploded view of the silo structure according to an embodiment of this disclosure;
[0020] Figure 4 This is a schematic diagram of the fuselage shell structure according to an embodiment of the present disclosure;
[0021] Icons: 1-Machine body shell; 11-Feeding channel; 12-First feeding port; 13-Clamping block; 2-Bag; 21-Second feeding port; 22-Connecting block; 23-Card slot; 24-Top cover; 25-Sealing ring; 31-Bag cover plate; 311-Third feeding port; 32-Connecting shaft; 33-Coil spring; 41-Drive motor; 42-Battery; 43-Drive rod; 441-Start button; 442-Indicator light; 51-Grinding bracket; 52-Outer grinding core; 53-Inner grinding core; 54-Grinding core fixing component; 55-Fixing screw sleeve; 61-Charging base; 611-Charging slot; 62-Charging circuit board; 621-Charging interface; 63-First charging induction coil; 64-Second charging induction coil. Detailed Implementation
[0022] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.
[0023] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.
[0024] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure 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, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0026] Example
[0027] like Figure 1-4As shown, this embodiment provides an automatic switching hopper 2 grinder, including a machine body shell 1. The machine body shell 1 has an internal feeding channel 11 with a first feeding port 12 at its top and a bottom connection to the grinding assembly. A hopper 2 is detachably connected to the top of the machine body shell 1 via a snap-fit connection. A second feeding port 21 is located at the bottom of the hopper 2, corresponding to the first feeding port 12. A connecting block 22 is integrally formed at the bottom of the hopper 2. A connecting shaft 32 is detachably connected to the connecting block 22. Specifically, the bottom of the connecting block 22 has a barb; after the connecting block 22 is inserted into the connecting shaft 32, the connecting shaft 32 can rotate on the connecting block 22, but without... The connecting block 22 is disengaged. A hopper cover 31 is sleeved on the outside of the connecting shaft 32. A third discharge port 311 is opened on the hopper cover 31. A coil spring 33 is sleeved on the outside of the connecting shaft 32. One end of the coil spring 33 abuts against the hopper cover 31. During installation, the third discharge port 311 of the hopper cover 31 is inserted into the first discharge port 12. Then, the hopper 2 is rotated so that the position of the second small discharge port corresponds to the first discharge port 12 and the third discharge port 311. At this time, the bottom of the hopper 2 is in the open state. During disassembly, the hopper 2 is removed. At this time, the coil spring 33 drives the hopper cover 31 to rotate through the elastic force, so that the second discharge port 21 and the third discharge port 311 are misaligned. At this time, the hopper 2 automatically closes.
[0028] A drive assembly is installed inside the outer casing 1, and a grinding assembly is installed at the bottom of the outer casing 1. The drive assembly is connected to the grinding assembly in a transmission manner. Pepper grains in the hopper 2 enter the feeding channel 11 through the second feeding port 21 and the third feeding port 311, and finally enter the grinding assembly. The drive assembly drives the grinding assembly to rotate and grind the pepper grains into pepper powder, which falls from the bottom.
[0029] Furthermore, an "L"-shaped slot 23 is provided on the outer side of the bottom of the hopper 2, and a locking block 13 is fixedly connected to the inner side of the top of the outer casing 1 at a position corresponding to the slot 23. During installation, the second discharge port 21 is inserted into the first discharge port 12, at which point the locking block 13 is inserted from the bottom opening of the slot 23. The hopper 2 is rotated to move the locking block 13 into the slot 23 and lock it in place. At this point, the position of the second discharge port 21 is exactly rotated to the position of the third discharge port 311 and the first discharge port 12. After installation, the hopper 2 is in the open state. Similarly, during disassembly, the hopper 2 is rotated in the opposite direction to allow the locking block 13 to disengage from the slot 23. After removing the hopper 2, the hopper cover 31 is reset and the hopper 2 is closed by the action of the coil spring 33.
[0030] Specifically, the drive assembly includes a battery 42, a drive circuit board, a drive motor 41, and a drive rod 43. The drive circuit board is electrically connected to the battery 42 and the drive motor 41. The output shaft of the drive motor 41 is driveably connected to the drive rod 43, and the drive rod 43 is driveably connected to the grinding assembly. The battery 42 provides power to the drive motor 41. The drive circuit board commands the drive motor 41 to work, driving the drive rod 43 to rotate, thereby driving the grinding assembly to rotate and perform the grinding operation.
[0031] Specifically, the grinding assembly includes a grinding bracket 51, an outer grinding core 52, and an inner grinding core 53. The grinding bracket 51 is bolted to the bottom of the outer casing 1. The outer grinding core 52 is embedded inside the grinding bracket 51, and the inner grinding core 53 is embedded inside the outer grinding core 52 and has a clearance fit with it. A grinding core fixing member 54 is provided inside the inner grinding core 53. One end of the drive rod 43 passes through the grinding core fixing member 54 and is fixed by a fixing screw sleeve 55. The drive motor 41 controls the drive rod 43 to rotate, causing the inner grinding core 53 to rotate. The pepper located between the inner grinding core 53 and the outer grinding core 52 is ground into powder by the inner grinding core 53 and the outer grinding core 52 and falls through the gap between the inner grinding core 53 and the outer grinding core 52. In use, simply align the bottom of the grinder with the food or plate.
[0032] Furthermore, a feeding port is provided at the top of the hopper 2, and a top cover 24 is detachably connected to the feeding port. A sealing ring 25 is provided on the inner side of the top cover 24. The top cover 24 is installed on the top of the hopper 2 by interference fit and is sealed by the sealing ring 25 to prevent moisture from entering the hopper 2. When feeding, the top cover 24 can be opened directly to feed without disassembling the entire hopper 2.
[0033] The device also includes a charging base 61, which has several charging slots 611. The number of charging slots 611 can be set according to actual needs. The charging base 61 not only has a charging function, but can also be used to place the grinder.
[0034] Specifically, a charging circuit board 62 is embedded inside the charging base 61. The charging circuit board 62 integrates a charging interface 621, which connects to an external power source via a charging cable. A first charging induction coil 63 is located inside the charging base 61 near the charging slot 611. A second charging induction coil 64 is fixedly connected to the bottom of the outer casing 1. The second charging induction coil 64 is covered with a decorative shell and is electrically connected to the drive circuit board. The charging circuit board 62 provides current to the first charging induction coil 63. The first charging induction coil 63 and the second charging induction coil 64 generate electromagnetic induction, causing the second induction coil to generate current to charge the internal battery 42, thus achieving wireless charging. After using the grinder, the user only needs to place it on the charging base 61 to charge it, which is very convenient.
[0035] Furthermore, a start button 441 is integrated on the drive circuit board, and the start button 441 is embedded in the surface of the housing 1. Pressing the start button 441 once turns on the drive motor 41, and pressing the start button 441 again turns off the drive motor 41.
[0036] Furthermore, an indicator light 442 is integrated on the drive circuit board, and the indicator light 442 is embedded in the surface of the housing 1. The indicator light 442 displays the working status of the grinder.
[0037] The working principle of this utility model is as follows: During installation, the second feeding port 21 is inserted into the first feeding port 12. At this time, the locking block 13 is inserted from the bottom opening of the slot 23. The hopper 2 is rotated so that the locking block 13 moves into the slot 23 and locks in place. At this time, the position of the second feeding port 21 is exactly rotated to the position of the third feeding port 311 and the first feeding port 12. After installation, the hopper 2 is in the open state. The same principle applies to disassembly. The hopper 2 is rotated in the opposite direction so that the locking block 13 can be disengaged from the slot 23. After removing the hopper 2, the hopper cover 31 is reset and closed by the action of the coil spring 33. Peppercorns are placed into the hopper 2 and enter the feeding channel 11 through the second feeding port 21, the third feeding port 311, and finally enter the grinding assembly. The grinding assembly is driven by the drive assembly to rotate and grind the peppercorns into pepper powder, which falls from the bottom.
[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.
Claims
1. An automatic switching hopper grinder, characterized in that, include: The machine body has an outer casing, inside which a feeding channel is provided. The top of the outer casing has a first feeding port that communicates with the feeding channel. A hopper is detachably connected to the top of the outer casing. A second feeding port is provided at the bottom of the hopper. A connecting block is fixedly connected to the bottom of the hopper. A connecting shaft is detachably connected to the connecting block. A hopper cover is rotatably connected to the outside of the connecting shaft. A third feeding port is provided on the hopper cover. A coil spring is sleeved on the outside of the connecting shaft. One end of the coil spring abuts against the hopper cover. A drive assembly is provided inside the machine body. A grinding assembly is provided at the bottom of the outer casing. The drive assembly is connected to the grinding assembly in a transmission manner.
2. The automatic switching hopper grinder according to claim 1, characterized in that, An "L"-shaped slot is provided on the outer side of the bottom of the hopper, and a locking block is fixedly connected to the inner side of the top of the machine body shell at the position corresponding to the slot.
3. The automatic switching hopper grinder according to claim 1, characterized in that, The drive assembly includes a battery, a drive circuit board, a drive motor, and a drive rod. The drive circuit board is electrically connected to the battery and the drive motor. The output shaft of the drive motor is drivenly connected to the drive rod, and the drive rod is drivenly connected to the grinding assembly.
4. The automatic switching hopper grinder according to claim 3, characterized in that, The grinding assembly includes a grinding bracket, an outer grinding core, and an inner grinding core. The grinding bracket is fixedly connected to the bottom of the machine body shell. The outer grinding core is embedded inside the grinding bracket. The inner grinding core is embedded inside the outer grinding core and is clearance-fitted with the outer grinding core. A grinding core fixing component is provided inside the inner grinding core. One end of the drive rod passes through the grinding core fixing component and is fixed by a fixing screw sleeve.
5. An automatic switching hopper grinder according to claim 1, characterized in that, The top of the hopper is provided with a feeding port, which is detachably connected to a top cover, and a sealing ring is provided on the inner side of the top cover.
6. An automatic switching hopper grinder according to claim 3, characterized in that, It also includes a charging base, which has several charging slots.
7. An automatic switching hopper grinder according to claim 6, characterized in that, The charging base has a built-in charging circuit board with a charging interface. A first charging induction coil is located inside the charging base near the charging slot. A second charging induction coil is fixedly connected to the bottom of the outer shell. The second charging induction coil is covered with a decorative shell and is electrically connected to the drive circuit board.
8. An automatic switching hopper grinder according to claim 3, characterized in that, The drive circuit board integrates a start button, which is embedded in the surface of the housing.
9. An automatic switching hopper grinder according to claim 3, characterized in that, The drive circuit board integrates an indicator light, which is embedded in the surface of the housing.