Bean bin opening and closing structure and electric coffee bean grinder

Abstract

The utility model provides a bean bin opening and closing structure and an electric coffee bean grinder. The bean bin opening and closing structure comprises a fixed base, a bean bin body and a switch cock. A mounting port is formed in the fixed base; the bean bin main body is detachably mounted on the fixed base; a bean outlet of the bean bin main body is positioned in the mounting port; a limiting guide groove is formed in the inner wall of the mounting port; the bean bin opening and closing structure further comprises a switch spin valve. The switch spin valve is rotationally mounted at a bean outlet of the bean bin main body; the switch spin valve is convexly provided with a limiting bulge towards the inside of the limiting guide groove; the limiting guide groove comprises a rotating guide clamping groove and a loading and unloading guide groove which are communicated; the assembly and disassembly guide groove extends outwards and is communicated with the installation port, the rotation guiding clamping groove is perpendicular to the assembly and disassembly guide groove and surrounds the switch spin valve, the limiting protrusion is fixed in position under the guiding effect of the assembly and disassembly guide groove so that the switch spin valve can be kept at the position where the bean outlet is closed, or the rotation guiding clamping groove guides the switch spin valve to open the bean outlet and clamp the limiting protrusion. A user can be prevented from detaching the bean bin main body under the condition that the bean outlet is opened.

Description

Technical Field

[0001] The present disclosure relates to the technical field of coffee bean grinding equipment, and in particular to a bean bin opening and closing structure and an electric coffee bean grinder. Background Art

[0002] As coffee culture becomes increasingly popular, coffee bean grinders have also entered people's lives. Currently, most coffee bean grinders are equipped with a detachable bean hopper for storing coffee beans, which can be removed and stored separately after use. For example, the hopper disclosed in Chinese patent document CN114786550A can close the bottom opening of the hopper by closing the closing device when the hopper needs to be removed, thereby preventing the coffee beans in the hopper from leaking out. However, since it is necessary to pay attention to whether the bottom opening is closed every time the hopper is removed, caution is required when using it. If the user forgets to close the bottom opening and removes the hopper, coffee beans may still leak out. Utility Model Content

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a bean hopper opening and closing structure and an electric coffee bean grinder that are easy to disassemble and assemble and prevent coffee beans from leaking out during disassembly.

[0004] The purpose of this disclosure is achieved through the following technical solutions:

[0005] A bean silo opening and closing structure, comprising:

[0006] A fixed base, which is used to be installed on the grinder body and has a mounting port;

[0007] a bean hopper body, the bean hopper body being used to accommodate coffee beans; the bean hopper body being detachably mounted on the fixed base; a bean outlet of the bean hopper body being located within the mounting port and being connected to a grinding chamber within the grinder body;

[0008] The cam is adapted to engage the bean outlet of the bean hopper body when the bean outlet is opened and closed, and the cam is adapted to engage the bean outlet of the bean hopper body when the bean outlet is opened and closed.

[0009] In one embodiment, the bean outlet is opened at the bottom of the bean silo body; the outer peripheral portion of the switch rotary valve is rotatably sleeved on the outer peripheral wall of the bottom of the bean silo body; a locking protrusion is protruded on the outer peripheral wall of the bottom of the bean silo body; the locking protrusion movably passes through the switch rotary valve and is clamped in the loading and unloading guide groove.

[0010] In one embodiment, a movable opening is provided on the switch rotary valve; the movable opening is connected to the loading and unloading guide groove and extends along the outer peripheral wall of the bottom of the bean hopper body in a direction away from the guide rotary groove; the locking protrusion passes through the movable opening and is accommodated in the loading and unloading guide groove.

[0011] In one embodiment, a mounting guide groove is further provided on a side of the switch rotary valve close to the bean hopper body; one end of the mounting guide groove is connected to the movable port, and the other end of the mounting guide groove extends out of the switch rotary valve.

[0012] In one embodiment, the movable opening is provided with a first retaining block at a position communicating with the mounting guide groove, and the first retaining block is used to slide against the retaining protrusion when the switch rotary valve closes the bean outlet of the bean hopper body; and / or,

[0013] The movable opening is provided with a second abutting block at a position away from the connection with the mounting guide groove, and the second abutting block is used for sliding against the stopping protrusion when the switch rotary valve opens the bean outlet of the bean bin main body.

[0014] In one embodiment, a plurality of contact pads are spaced apart at the bottom of the switch rotary valve, and the switch rotary valve is slidably abutted against a placement platform formed in the installation port through the plurality of contact pads.

[0015] In one embodiment, a portion of the on-off rotary valve extends out of the mounting port and forms a push ring.

[0016] In one embodiment, a safety stop cap is installed in the bean hopper body, and the safety stop cap is located above the bean outlet. A bean passing gap is formed between the safety stop cap and the inner wall of the bean hopper body, and the bean passing gap is connected to the bean outlet.

[0017] An electric coffee bean grinder comprises a grinder body and a bean bin opening and closing structure according to any of the above embodiments; the fixed base is mounted on the grinder body, and the bean outlet of the bean bin body is connected to the grinding chamber in the grinder body.

[0018] In one embodiment, an upper grinding disc, a lower grinding disc, a control motor, and a driving drive are installed in the grinder body; the upper grinding disc and the lower grinding disc are arranged opposite to each other, and the bean grinding chamber is formed between the upper grinding disc and the lower grinding disc; the rotating shaft of the control motor is connected to the lower grinding disc to drive the lower grinding disc to rotate; the driving drive is fixedly connected to the grinder body; and the control motor is connected to the power output end of the driving drive to move the lower grinding disc closer to or away from the upper grinding disc.

[0019] Compared with the prior art, the present disclosure has at least the following advantages:

[0020] In the aforementioned bean hopper opening and closing structure, a limiting guide groove is provided on the inner wall of the mounting port, and a limiting protrusion is provided on the switch rotary valve protruding into the limiting guide groove, so that the limiting guide groove guides the movement of the limiting protrusion. Because the loading and unloading guide groove of the limiting guide groove extends outward from the mounting port, when the bean hopper body is removed, the limiting protrusion is guided by the loading and unloading guide groove and fixed in position, thereby maintaining the switch rotary valve in a ready-to-remove position. In the ready-to-remove position, the switch rotary valve is sealed against the bean outlet of the bean hopper body. Furthermore, because the guide groove of the limiting guide groove is perpendicular to the loading and unloading guide groove and surrounds the switch rotary valve, when the limiting protrusion slides within the guide groove, the switch rotary valve is guided by the guide groove to open the bean outlet of the bean hopper body, while simultaneously retaining the limiting protrusion, thereby retaining the bean hopper body within the mounting port. This makes it difficult to remove the bean hopper body from the mounting port when the bean outlet is open, effectively preventing the user from forgetting to close the bean outlet before removing the bean hopper body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a structural schematic diagram of a bean silo opening and closing structure according to an embodiment of the present disclosure;

[0023] Figure 2 for Figure 1 A partial cross-sectional structural diagram of the bean silo opening and closing structure shown;

[0024] Figure 3 for Figure 1 A partial enlarged view shown in the middle;

[0025] Figure 4 Schematic diagram of the structure of an electric coffee bean grinder according to another embodiment of the present invention.

[0026] Reference numerals: 10, electric coffee bean grinder; 100, bean bin opening and closing structure; 110, fixed base; 1110, mounting port; 1111, position limiting guide groove; 1101, guide rotation slot; 1102, loading and unloading guide groove; 1112, placement platform; 120, bean bin body; 1210, bean outlet; 1220, locking protrusion; 1230, safety stop cap; 1231, bean gap; 130, On / off rotary valve; 1310, limiting protrusion; 1320, bean outlet; 1330, movable port; 1331, second latching block; 1340, mounting guide groove; 1341, first latching block; 1350, contact pad; 1360, push ring; 200, bean grinder body; 210, upper grinding disc; 220, lower grinding disc; 2201, grinding chamber; 230, control motor; 240, push drive. DETAILED DESCRIPTION

[0027] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0031] like Figure 1 and Figure 2As shown, a bean hopper opening and closing structure 100 of an embodiment includes a fixed base 110, a bean hopper body 120 and an on-off rotary valve 130; the fixed base 110 is used to be installed on the bean grinder body, and a mounting port 1110 is provided on the fixed base 110; the bean hopper body 120 is used to accommodate coffee beans; the bean hopper body 120 is detachably mounted on the fixed base 110; a bean outlet 1210 of the bean hopper body 120 is located in the mounting port 1110 and is used to communicate with the grinding chamber in the bean grinder body; a limiting guide groove 1111 is provided on the inner wall of the mounting port 1110; the bean hopper opening and closing structure 100 also includes an on-off rotary valve 130; the on-off rotary valve 130 is rotatably mounted at the bean outlet 1210 of the bean hopper body 120, for opening or closing the bean outlet 1210; the on-off rotary valve 130 A limiting protrusion 1310 is protruded into the limiting guide groove 1111 in the direction 30; the limiting guide groove 1111 includes a connected guide groove 1101 and a loading and unloading guide groove 1102; the loading and unloading guide groove 1102 extends outward and is connected to the installation port 1110, and the loading and unloading guide groove 1102 is used to accommodate the limiting protrusion 1310 when the bean hopper body 120 is removed, so as to keep the switch rotary valve 130 in the ready-to-remove position; and when the switch rotary valve 130 is in the ready-to-remove position, the switch rotary valve 130 is closed to the bean outlet 1210 of the bean hopper body 120; the guide groove 1101 is perpendicular to the loading and unloading guide groove 1102 and surrounds the switch rotary valve 130; the guide groove 1101 is used to guide and abut the limiting protrusion 1310 when the switch rotary valve 130 opens the bean outlet 1210 of the bean hopper body 120.

[0032] It can be understood that since the limiting guide groove 1111 is provided on the inner wall of the installation port 1110, the switch rotary valve 130 is provided with a limiting protrusion 1310 protruding into the limiting guide groove 1111, so that the movement of the limiting protrusion 1310 can be guided by the limiting guide groove 1111. Because the loading and unloading guide groove 1102 of the limiting guide groove 1111 extends outward from the installation port 1110, when the bean hopper body 120 is removed, the limiting protrusion 1310 is guided by the loading and unloading guide groove 1102 and is fixed in position, so that the switch rotary valve 130 remains in the ready-to-remove position. In the ready-to-remove position, the switch rotary valve 130 is sealed to the bean outlet 1210 of the bean hopper body 120. Furthermore, because the guide rotation slot 1101 of the limiting guide groove 1111 is perpendicular to the loading and unloading guide groove 1102 and surrounds the switch rotary valve 130, when the limiting protrusion 1310 slides in the guide rotation slot 1101, the switch rotary valve 130 can open the bean outlet 1210 of the bean hopper body 120 under the guidance of the guide rotation slot 1101, and at the same time hold the limiting protrusion 1310, so that the bean hopper body 120 remains in the installation port 1110, thereby achieving the effect of making it difficult for the bean hopper body 120 to be removed from the installation port 1110 when the bean outlet 1210 of the bean hopper body 120 is opened, which can effectively prevent the user from forgetting to close the bean outlet 1210 and disassembling the bean hopper body 120.

[0033] Combine Figure 1 and Figure 2 As shown, in this embodiment, a bean outlet 1210 is defined at the bottom of the bean hopper body 120; the outer periphery of the on-off rotary valve 130 is rotatably mounted on the outer periphery of the bottom of the bean hopper body 120; a locking protrusion 1220 is provided on the outer periphery of the bottom of the bean hopper body 120; the locking protrusion 1220 movably extends through the on-off rotary valve 130 and is retained in the loading and unloading guide groove 1102. It can be understood that because the outer periphery of the on-off rotary valve 130 is rotatably mounted on the outer periphery of the bottom of the bean hopper body 120, the on-off rotary valve 130 can rotate smoothly at the bottom of the bean hopper body 120. At the same time, since the locking protrusion 1220 on the outer peripheral wall of the bottom of the bean hopper body 120 passes through the switch rotary valve 130 and is locked in the loading and unloading guide groove 1102, when the limiting protrusion 1310 moves along the guide rotation groove 1101 to guide the switch rotary valve 130 to rotate, the loading and unloading guide groove 1102 interferes with the locking protrusion 1220 to limit the position of the bean hopper body 120, thereby preventing the bean hopper body 120 from rotating with the switch rotary valve 130, and then allowing the switch rotary valve 130 to rotate smoothly relative to the bean hopper body 120 and open the bean outlet 1210 of the bean hopper body 120.

[0034] Combine Figure 2 As shown, specifically, the center position of the on-off rotary valve 130 is rotatably connected to the center position of the bottom of the bean hopper body 120; a bean leakage port 1320 is opened on the on-off rotary valve 130, and the on-off rotary valve 130 rotates relative to the bean hopper body 120 so that the bean leakage port 1320 and the bean outlet 1210 are arranged opposite to or staggered. When the bean leakage port 1320 and the bean outlet 1210 are arranged opposite to each other, the bean outlet 1210 is connected to the bean grinding chamber; when the bean leakage port 1320 and the bean outlet 1210 are staggered, the on-off rotary valve 130 closes the bean outlet 1210. In another embodiment, the number of bean outlets 1210 and the number of bean leakage outlets 1320 are both multiple, and the multiple bean outlets 1210 are spaced apart around the center position of the bottom of the bean silo main body 120, and the multiple bean leakage outlets 1320 are spaced apart around the central axis O of the bottom of the bean silo main body 120, and a blocking piece is formed between two adjacent bean leakage outlets 1320, each bean leakage outlet 1320 is connected to the corresponding bean outlet 1210, or each blocking piece blocks the corresponding bean outlet 1210, when the bean leakage outlets 1320 are connected to the corresponding bean outlet 1210, the bean outlet 1210 of the bean silo main body 120 is opened, and when each blocking piece blocks the corresponding bean outlet 1210, the bean outlet 1210 of the bean silo main body 120 is closed.

[0035] Combine Figure 1 and Figure 2As shown, further, a movable opening 1330 is opened on the switch rotary valve 130; the movable opening 1330 is communicated with the loading and unloading guide groove 1102 and extends along the outer peripheral wall of the bottom of the bean hopper body 120 in a direction away from the guide rotary groove 1101; the locking protrusion 1220 passes through the movable opening 1330 and is accommodated in the loading and unloading guide groove 1102. It can be understood that since the locking protrusion 1220 passes through the movable opening 1330 and is accommodated in the loading and unloading guide groove 1102, and the movable opening 1330 extends along the outer peripheral wall of the bottom of the bean hopper body 120 in a direction away from the guide rotation groove 1101, when the switch rotary valve 130 rotates, the limiting protrusion 1310 moves along the guide rotation groove 1101 and the locking protrusion 1220 is displaced in the movable opening 1330 in a direction away from the guide rotation groove 1101, which can avoid interference between the locking protrusion 1220 and the switch rotary valve 130, and thus enable the switch rotary valve 130 and the bean hopper body 120 to maintain relative rotation.

[0036] Combine Figure 1 and Figure 2 As shown, in one embodiment, a mounting guide groove 1340 is further defined on a side of the on-off rotary valve 130 proximal to the bean hopper body 120; one end of the mounting guide groove 1340 is connected to the movable opening 1330, and the other end of the mounting guide groove 1340 extends out of the on-off rotary valve 130. It will be appreciated that because one end of the mounting guide groove 1340 is connected to the movable opening 1330 and the other end of the mounting guide groove 1340 extends out of the on-off rotary valve 130, when the bean hopper body 120 and the on-off rotary valve 130 are being assembled or disassembled, the retaining protrusion 1220 can smoothly enter or exit the movable opening 1330 along the mounting guide groove 1340, thereby further facilitating the assembly of the bean hopper body 120 and the on-off rotary valve 130.

[0037] Combine Figure 2 and Figure 3 As shown, in one embodiment, the movable opening 1330 is provided with a first latching block 1341 at a position communicating with the mounting guide groove 1340. The first latching block 1341 is used to slide against the latching protrusion 1220 when the switch rotary valve 130 closes the bean outlet 1210 of the bean hopper body 120. It can be understood that because the movable opening 1330 is provided with the first latching block 1341 at a position communicating with the mounting guide groove 1340, the first latching block 1341 abuts against the latching protrusion 1220, allowing the switch rotary valve 130 to remain suspended relative to the bean hopper body 120. At this time, the switch rotary valve 130 can remain closed to the bean outlet 1210 of the bean hopper body 120.

[0038] Combine Figure 2 and Figure 3As shown, in one embodiment, the movable opening 1330 is provided with a second retaining block 1331 at a position away from the connection with the mounting guide groove 1340. The second retaining block 1331 is used to slide against the retaining protrusion 1220 when the switch rotary valve 130 opens the bean outlet 1210 of the bean hopper body 120. It can be understood that because the movable opening 1330 is provided with the second retaining block 1331 at a position away from the connection with the mounting guide groove 1340, the retaining block 1331 abuts against the retaining protrusion 1220, allowing the switch rotary valve 130 to remain suspended relative to the bean hopper body 120. In this case, the switch rotary valve 130 can remain open to the bean outlet 1210 of the bean hopper body 120.

[0039] Combine Figure 2 As shown, in one embodiment, a plurality of contact pads 1350 are provided at intervals on the bottom of the switch rotary valve 130. The switch rotary valve 130 slides against the placement platform 1112 formed in the mounting port 1110 via the plurality of contact pads 1350. It can be understood that because the plurality of contact pads 1350 are provided at intervals on the bottom of the switch rotary valve 130, the switch rotary valve 130 slides against the placement platform 1112 formed in the mounting port 1110 via the plurality of contact pads 1350. The placement platform 1112 can stably place the switch rotary valve 130. At the same time, the plurality of contact pads 1350 can reduce friction between the bottom of the switch rotary valve 130 and the placement platform 1112, thereby allowing the switch rotary valve 130 to maintain stable rotation.

[0040] Combine Figure 1 and Figure 2 As shown, in one embodiment, a portion of the on-off rotary valve 130 extends out of the mounting port 1110 and forms a push-pull ring 1360. It will be appreciated that since the portion of the on-off rotary valve 130 extending out of the mounting port 1110 forms the push-pull ring 1360, a user can manually push the push-pull ring 1360 to rotate the on-off rotary valve 130 relative to the bean hopper body 120, thereby allowing the user to conveniently open or close the bean outlet 1210 of the bean hopper body 120 through the on-off rotary valve 130.

[0041] Combine Figure 2 As shown, in one embodiment, a safety stopper cap 1230 is installed in the bean hopper body 120. The safety stopper cap 1230 is located above the bean outlet 1210. A bean-passing gap 1231 is formed between the safety stopper cap 1230 and the inner wall of the bean hopper body 120. The bean-passing gap 1231 is connected to the bean outlet 1210. It can be understood that because the safety stopper cap 1230 in the bean hopper body 120 is located above the bean outlet 1210, the safety stopper cap 1230 can partially block the bean outlet 1210, thereby preventing a user's fingers from reaching the bean outlet 1210 and causing accidents.

[0042] like Figure 2and Figure 4 As shown, the present disclosure further provides an electric coffee bean grinder 10, comprising a grinder body 200 and a bean bin opening and closing structure 100 according to any of the above embodiments; a fixed base 110 is mounted on the grinder body 200, and a bean outlet 1210 of the bean bin body 120 is connected to a bean grinding chamber 2201 in the grinder body 200, so that coffee beans in the bean bin body 120 can enter the bean grinding chamber 2201 through the bean outlet 1210. It can be understood that by applying the bean hopper opening and closing structure 100 of the present disclosure to the electric coffee bean grinder 10, when the bean hopper body 120 is removed, the limiting protrusion 1310 is guided by the loading and unloading guide groove 1102 and fixed in position, so that the switch rotary valve 130 remains in the ready-to-remove position. In the ready-to-remove position, the switch rotary valve 130 is closed to the bean outlet 1210 of the bean hopper body 120. When the limiting protrusion 1310 slides in the guide rotation clamping groove 1101, the switch rotary valve 130 can open the bean outlet 1210 of the bean hopper body 120 under the guidance of the guide rotation clamping groove 1101, and at the same time, the limiting protrusion 1310 is clamped. Therefore, when the bean outlet 1210 of the bean hopper body 120 is opened, the bean hopper body 120 is difficult to be removed from the installation port 1110, which can prevent the user from removing the bean hopper body 120 in the event that the bean outlet 1210 is forgotten to be closed.

[0043] Combine Figure 4 As shown, in one embodiment, an upper grinding disc 210, a lower grinding disc 220, a control motor 230, and a driving actuator 240 are installed in the grinder body 200; the upper grinding disc 210 and the lower grinding disc 220 are arranged opposite each other, and a grinding chamber 2201 is formed between the upper grinding disc 210 and the lower grinding disc 220; the rotating shaft of the control motor 230 is connected to the lower grinding disc 220 to drive the lower grinding disc 220 to rotate; the driving actuator 240 is fixedly connected to the grinder body 200; the control motor 230 is connected to the power output end of the driving actuator 240 to move the lower grinding disc 220 closer to or away from the upper grinding disc 210. It can be understood that since the bean grinding chamber 2201 is formed between the upper grinding disc 210 and the lower grinding disc 220, the rotating shaft of the control motor 230 is connected to the lower grinding disc 220, so that the lower grinding disc 220 can rotate relative to the upper grinding disc 210 under the drive of the control motor 230, thereby grinding the coffee beans in the bean grinding chamber 2201. At the same time, since the control motor 230 is connected to the power output end of the drive driver 240, the control motor 230 can act on the lower grinding disc 220 under the drive of the drive driver 240, thereby moving the lower grinding disc 220 closer to or away from the upper grinding disc 210, and ultimately adjusting the distance between the lower grinding disc 220 and the lower grinding disc 220. Specifically, the control motor 230 is an induction motor and the drive driver 240 is a servo motor push rod, so that the distance between the lower grinding disc 220 and the lower grinding disc 220 can be accurately adjusted.

[0044] Compared with the prior art, the present disclosure has at least the following advantages:

[0045] In the bean hopper opening and closing structure 100, a limiting guide groove 1111 is defined on the inner wall of the mounting port 1110, and a limiting protrusion 1310 is provided on the switch rotary valve 130 protruding into the limiting guide groove 1111, so that the limiting guide groove 1111 can guide the movement of the limiting protrusion 1310. Because the loading and unloading guide groove 1102 of the limiting guide groove 1111 extends outward from the mounting port 1110, when the bean hopper body 120 is removed, the limiting protrusion 1310 is guided by the loading and unloading guide groove 1102 and fixed in position, thereby maintaining the switch rotary valve 130 in the ready-to-remove position. In the ready-to-remove position, the switch rotary valve 130 is sealed against the bean outlet 1210 of the bean hopper body 120. Furthermore, because the guide rotation slot 1101 of the limiting guide groove 1111 is perpendicular to the loading and unloading guide groove 1102 and surrounds the switch rotary valve 130, when the limiting protrusion 1310 slides in the guide rotation slot 1101, the switch rotary valve 130 can open the bean outlet 1210 of the bean hopper body 120 under the guidance of the guide rotation slot 1101, and at the same time hold the limiting protrusion 1310, so that the bean hopper body 120 remains in the installation port 1110, thereby achieving the effect of making it difficult for the bean hopper body 120 to be removed from the installation port 1110 when the bean outlet 1210 of the bean hopper body 120 is opened, which can effectively prevent the user from forgetting to close the bean outlet 1210 and disassembling the bean hopper body 120.

[0046] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art could make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present patent shall be determined by the appended claims.

Claims

1. A bean silo opening and closing structure, comprising: A fixed base, which is used to be installed on the grinder body and has a mounting port; a bean hopper body, the bean hopper body being used to accommodate coffee beans; the bean hopper body being detachably mounted on the fixed base; a bean outlet of the bean hopper body being located within the mounting port and being connected to a grinding chamber within the grinder body; and a cam which is adapted to engage said bean outlet and to engage said cam when the bean outlet is opened and closed.

2. The bean silo opening and closing structure according to claim 1, characterized in that: The bean outlet is provided at the bottom of the bean silo body; the outer periphery of the switch rotary valve is rotatably sleeved on the outer peripheral wall of the bottom of the bean silo body; a locking protrusion is convexly provided on the outer peripheral wall of the bottom of the bean silo body; the locking protrusion movably passes through the switch rotary valve and is clamped in the loading and unloading guide groove.

3. The bean silo opening and closing structure according to claim 2, characterized in that: The switch rotary valve is provided with a movable opening; the movable opening is communicated with the loading and unloading guide groove and extends along the outer peripheral wall of the bottom of the bean bin body in a direction away from the guide rotation groove; the locking protrusion passes through the movable opening and is accommodated in the loading and unloading guide groove.

4. The bean silo opening and closing structure according to claim 3, characterized in that: A mounting guide groove is further provided on a side of the switch rotary valve close to the bean bin main body; one end of the mounting guide groove is connected to the movable port, and the other end of the mounting guide groove extends out of the switch rotary valve.

5. The bean silo opening and closing structure according to claim 4, characterized in that: The movable opening is provided with a first abutting block at a position communicating with the mounting guide groove, and the first abutting block is used to slide against the abutting protrusion when the switch rotary valve closes the bean outlet of the bean bin main body; and / or, The movable opening is provided with a second abutting block at a position away from the connection with the mounting guide groove, and the second abutting block is used for sliding against the stopping protrusion when the switch rotary valve opens the bean outlet of the bean bin main body.

6. The bean silo opening and closing structure according to claim 1, characterized in that: A plurality of contact pads are arranged at intervals on the bottom of the switch rotary valve, and the switch rotary valve is slidably abutted against a placement platform formed in the installation port through the plurality of contact pads.

7. The bean silo opening and closing structure according to claim 1, characterized in that: Part of the switch rotary valve extends out of the installation port and forms a push ring.

8. The bean silo opening and closing structure according to claim 1, characterized in that: A safety stop cap is installed in the bean hopper body, and the safety stop cap is located above the bean outlet. A bean passing gap is formed between the safety stop cap and the inner wall of the bean hopper body, and the bean passing gap is connected to the bean outlet.

9. An electric coffee bean grinder, characterized in that: It comprises a bean grinder body and a bean hopper opening and closing structure according to any one of claims 1 to 8; the fixed base is mounted on the bean grinder body, and the bean outlet of the bean hopper body is connected to the bean grinding chamber in the bean grinder body.

10. The electric coffee bean grinder according to claim 9, characterized in that: An upper grinding disc, a lower grinding disc, a control motor, and a driving actuator are installed in the grinder body; the upper grinding disc and the lower grinding disc are arranged opposite each other, and the bean grinding chamber is formed between the upper grinding disc and the lower grinding disc; the rotating shaft of the control motor is connected to the lower grinding disc to drive the lower grinding disc to rotate; the driving actuator is fixedly connected to the grinder body; the control motor is connected to the power output end of the driving actuator to move the lower grinding disc closer to or away from the upper grinding disc.

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