Bean grinder with adjustable grinding opening

Abstract

The utility model relates to the technical field of bean grinders, in particular to a bean grinder with an adjustable grinding opening, which comprises a shell seat assembly, an outer cutter assembly and an inner cutter assembly, a discharge opening is arranged on one side of the shell seat assembly, the inner cutter assembly is mounted in the shell seat assembly, and the inner cutter assembly comprises a driving part and an inner cutter part which are in driving connection. The driving part is used for driving the inner cutter part to rotate, the outer cutter assembly comprises an outer cutter holder and an outer cutter part fixedly installed at the bottom of the outer cutter holder, a feeding port is formed in the outer cutter holder, the outer cutter assembly is installed in the shell base assembly in a screwed connection mode so that the height can be adjusted, and a grinding port with the gap adjustable in size is formed between the outer cutter part and the inner cutter part. In other words, the gap of the grinding opening is gradually reduced along with descending of the mounting height of the outer cutter assembly, and on the contrary, the gap of the grinding opening is gradually increased along with ascending of the mounting height of the outer cutter assembly, so that coffee powder of different thicknesses can be ground according to needs, and the requirements of different tastes of different users are met.

Description

Technical Field

[0001] This utility model relates to the field of coffee grinder technology, specifically to a coffee grinder with an adjustable grinding spout. Background Technology

[0002] A coffee grinder is a machine that grinds coffee beans into coffee powder. Different coarseness of coffee powder results in different tastes, but current coffee grinders produce coffee powder of a fixed size, making it impossible to grind coffee powder of different coarseness as needed, and thus failing to meet the different taste needs of different users. Utility Model Content

[0003] The present invention aims to provide a coffee grinder with an adjustable grinding spout to solve the aforementioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a coffee grinder with an adjustable grinding port, comprising a housing assembly, an outer blade assembly, and an inner blade assembly. A discharge port is provided on one side of the housing assembly. The inner blade assembly is installed inside the housing assembly and includes a driving member and an inner blade connected by a drive. The driving member is used to drive the inner blade to rotate. The outer blade assembly includes an outer blade holder and an outer blade fixedly installed at the bottom of the outer blade holder. A feeding port is formed inside the outer blade holder. The outer blade assembly is screwed into the housing assembly to achieve height adjustment. A grinding port with an adjustable gap is formed between the outer blade and the inner blade.

[0005] Preferably, the housing assembly includes a base and a support seat mounted on top of the base, the discharge port is located on one side of the base and communicates with the grinding port, and the outer blade assembly is screwed into the support seat to achieve height adjustment.

[0006] Preferably, the outer wall of the outer tool holder is provided with a spiral groove, and the inner wall of the support base is provided with a protrusion. The protrusion and the spiral groove are screwed together to realize the height of the outer tool assembly is adjustable in the support base, thereby making the gap of the grinding port adjustable.

[0007] Preferably, the spiral groove includes an inlet / outlet and an arc-shaped groove located on the upper side of the inlet / outlet and gradually extending upward.

[0008] Preferably, the inner cutting tool is frustoconical in shape, and the outer cutting tool has a hollow channel running vertically through it. The inner cutting tool is located inside the hollow channel of the outer cutting tool. The hollow channel includes a feeding channel and a grinding channel distributed vertically. The diameter of the feeding channel gradually decreases from top to bottom, and the diameter of the grinding channel gradually increases from top to bottom. The grinding port is formed in the grinding channel between the bottom of the outer cutting tool and the inner cutting tool.

[0009] Preferably, it also includes a pin, the top of the circumferential inner wall of the support base is provided with a plurality of limiting grooves, the outer tool holder is provided with a pin groove, the bottom outer side of the pin groove is formed with an opening, the pin is inserted into the pin groove, and the bottom outer side of the pin protrudes out of the opening and is locked and limited in the limiting groove.

[0010] Preferably, the pin is a long rectangular pin with a protrusion extending outward from its lower part for locking and limiting with the limiting groove, and a break is formed on the outer side of the upper part of the pin.

[0011] Preferably, there are two pin slots, which are respectively located on opposite sides of the outer tool holder; a handle is formed on the outer tool holder between the two pin slots, and an indicator arrow pointing towards the two pin slots is provided on the handle.

[0012] Preferably, an outer ring housing is installed on the top of the base, and the outer ring housing is located around the support base and the outer tool holder. The outer ring housing is provided with an annular step corresponding to the top periphery of the outer tool holder. Multiple numerical markings are provided on the annular step, and the number and position of the numerical markings correspond one-to-one with the number of limiting grooves.

[0013] Preferably, there are 72 numbers, numbered 1 to 72, with an angle of 5° between any two adjacent numbers, and the numbers 1 to 72 are arranged evenly in a clockwise direction on the annular step.

[0014] This utility model has the following beneficial effects:

[0015] This utility model includes a housing assembly, an outer blade assembly, and an inner blade assembly. The housing assembly has a discharge port on one side. The inner blade assembly is installed inside the housing assembly and includes a driving member and an inner blade connected by a drive mechanism. The driving member drives the inner blade to rotate. The outer blade assembly includes an outer blade holder and an outer blade fixedly installed at the bottom of the outer blade holder. A feeding port is formed inside the outer blade holder. The outer blade assembly is screwed into the housing assembly to achieve height adjustment. A grinding port with an adjustable gap is formed between the outer blade and the inner blade. That is, as the installation height of the outer blade assembly decreases, the gap of the grinding port gradually decreases; conversely, as the installation height of the outer blade assembly increases, the gap of the grinding port gradually increases. This allows for the grinding of coffee powder of different coarsenesses as needed, thereby meeting the different taste preferences of different users. Attached Figure Description

[0016] Figure 1 This is a perspective view of an embodiment of the present invention.

[0017] Figure 2 This is a front view of an embodiment of the present invention.

[0018] Figure 3 yes Figure 2 Sectional view at point AA.

[0019] Figure 4 This is a schematic diagram of the internal structure of this utility model after the outer blade assembly is hidden.

[0020] Figure 5 This is a top-side view of the outer blade assembly according to an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the external blade assembly according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the structure of the pin component according to an embodiment of the present invention.

[0023] Attached diagram labels: 1. Base, 2. Support base, 3. Outer ring housing, 4. Outer tool holder, 5. Outer tool, 6. Drive component, 7. Inner tool, 8. Feed port, 9. Grinding port, 10. Discharge port, 11. Spiral groove, 111. Inlet / outlet groove, 112. Arc groove, 12. Protrusion, 13. Feed channel, 14. Grinding channel, 15. Pin component, 151. Protrusion, 152. Fragment, 16. Limiting groove, 17. Pin groove, 18. Opening, 19. Handle, 20. Annular step, 21. Number marking, 22. Indicating arrow. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," 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 utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] See Figure 1-7 As shown in the figure, as an embodiment of the present invention, a coffee grinder with an adjustable grinding port is provided for grinding coffee beans into powder. It includes a housing assembly, an outer blade assembly, and an inner blade assembly. A discharge port 10 is provided on one side of the housing assembly. The inner blade assembly is installed inside the housing assembly and includes a drive member 6 and an inner blade 7 connected by a drive. The drive member 6 is specifically a motor and is used to drive the inner blade 7 to rotate. The outer blade assembly includes an outer blade holder 4 and an outer blade 5 fixedly installed at the bottom of the outer blade holder 4. A feeding port 8 is formed inside the outer blade holder 4. The outer blade assembly is screwed into the housing assembly to achieve height adjustment. A grinding port 9 with an adjustable gap is formed between the outer blade 5 and the inner blade 7. The drive member 6 drives the inner blade 7 to rotate, thereby grinding the coffee beans into powder at the grinding port 9, and finally flowing out to the outside through the discharge port 10. Specifically, the outer wall of the outer blade holder 4 is provided with a spiral groove 11, and the inner wall of the support base 2 is provided with a protrusion 12. The protrusion 12 and the spiral groove 11 are screwed together to allow the outer blade assembly to be installed in the support base 2 with adjustable height. This makes the gap of the grinding port 9 adjustable. That is, as the installation height of the outer blade assembly decreases, the gap of the grinding port 9 gradually decreases. Conversely, as the installation height of the outer blade assembly increases, the gap of the grinding port 9 gradually increases. This allows coffee powder of different coarseness to be ground as needed, thereby meeting the different taste needs of different users.

[0028] In this embodiment, the housing assembly includes a base 1 and a support 2 mounted on the top of the base 1. The discharge port 10 is located on one side of the base 1 and communicates with the grinding port 9. The outer blade assembly is screwed into the support 2 to achieve height adjustment, thereby facilitating assembly and disassembly.

[0029] In this embodiment, the spiral groove 11 includes an inlet / outlet groove 111 and an arc-shaped groove 112 located on the upper left side of the inlet / outlet groove 111 and gradually extending upward in a clockwise direction. When installing the outer blade assembly, the protrusion 12 is first aligned vertically with the inlet / outlet groove 111. Then, the outer blade assembly is rotated so that the protrusion 12 and the arc-shaped groove 112 slide and engage to achieve height adjustment of the outer blade assembly. When the outer blade assembly rotates counterclockwise, the installation height of the outer blade assembly decreases; when the outer blade assembly rotates clockwise, the installation height of the outer blade assembly increases. Of course, it is also possible for the arc-shaped groove 112 to be located on the upper right side of the inlet / outlet groove 111 and gradually extending upward in a clockwise direction. The rotation directions for installation, disassembly, and height adjustment are also opposite, and no limitation is imposed here.

[0030] In this embodiment, the protrusion 12 and the spiral groove 11 are two corresponding to each other, and the two protrusions 12 or the two spiral grooves 11 are respectively arranged in a centrally symmetrical manner to ensure the accuracy and smoothness of the assembly of the outer blade assembly.

[0031] In this embodiment, the inner blade 7 is truncated cone-shaped, and the outer blade 5 has a hollow channel running vertically through it. The inner blade 7 is located inside the hollow channel of the outer blade 5. The hollow channel includes a feeding channel 13 and a grinding channel 14 distributed vertically. The diameter of the feeding channel 13 gradually decreases from top to bottom, and the diameter of the grinding channel 14 gradually increases from top to bottom. Specifically, the diameter of the grinding channel 14 gradually increases in an arc shape from top to bottom. The grinding port 9 is formed in the grinding channel 14 between the bottom of the outer blade 5 and the inner blade 7. That is, after the coffee beans are put into the feeding port 8, they enter the feeding channel 13 and the grinding channel 14 in sequence, and are finally ground into powder through the grinding port 9, and finally flow out to the outside through the discharge port 10.

[0032] In this embodiment, a pin 15 is also included. The top of the circumferential inner wall of the support base 2 is provided with a plurality of limiting grooves 16. The outer tool holder 4 is provided with a pin groove 17. An opening 18 is formed on the outer bottom of the pin groove 17. The pin 15 is inserted into the pin groove 17, and the outer bottom of the pin 15 protrudes out of the opening 18 and is locked and limited in the limiting groove 16. That is, when the gap of the grinding port 9 is adjusted to the required size, the pin 15 is locked and limited by the limiting groove 16, thereby fixing and limiting the outer tool assembly and preventing it from rotating. In this embodiment, the pin 15 is a long rectangular pin 15, with a protrusion 151 extending outward from its lower part for locking and limiting with the limiting groove 16. A break 152 is formed on the outer side of the upper part of the pin 15. This setting can improve the stability of the external blade assembly for installation and fixing, and at the same time increase the elastic deformation of the pin 15, so that the pin 15 can be pulled out from the pin groove 17 more easily and effortlessly.

[0033] In this embodiment, there are two pin slots 17, which are respectively arranged on opposite sides of the outer tool holder 4, further improving the stability of the installation and positioning process of the outer tool assembly; a handle 19 is formed on the outer tool holder 4 between the two pin slots 17, which makes it convenient to hold the outer tool holder 4 for easy installation or removal.

[0034] In this embodiment, an outer ring housing 3 is installed on the top of the housing assembly, and the outer ring housing 3 is located around the support base 2 and the outer blade holder 4. An annular step 20 is provided on the outer ring housing 3 corresponding to the top periphery of the outer blade holder 4. Multiple numerical markers 21 are provided on the annular step 20, and the number and position of the numerical markers 21 correspond one-to-one with the number of limiting grooves 16. An indicator arrow 22 is provided on the handle 19 pointing towards two pin slots 17. The closest number indicated by the arrow is used as the fixed point. A pin 15 is inserted into the pin slot 17, causing the protrusion 151 of the pin 15 to engage with the limiting groove 16, thereby fixing and limiting the outer blade assembly to prevent rotation and completing the assembly. Specifically, there are 72 numerical markers 21, numbered 1 to 72, with an angle of 5° between adjacent numbers. The numbers 1 to 72 are evenly arranged sequentially in a clockwise direction on the annular step 20, providing 72 adjustable levels for the grinding port 9, offering greater selectivity and meeting the grinding needs of more users.

[0035] The assembly process and the adjustment of the gap size of the grinding port 9 in this utility model are as follows:

[0036] By aligning the protrusion 12 with the inlet / outlet slot 111, and then rotating the outer blade assembly counterclockwise, the protrusion 12 slides into the arc-shaped slot 112. The outer blade assembly gradually descends until the bottom of the outer blade 5 collides with the inner blade 7 (the gap between the two blades is minimal) and stops rotating. Then, the outer blade assembly is rotated clockwise, raising it to a certain height, so that the bottom of the outer blade 5 and the inner blade 7 form a grinding port 9. The gap of the grinding port 9 is determined by grinding beans according to the desired fineness. The outer blade assembly is rotated clockwise, and the gap of the grinding port 9 gradually increases until the desired gap is obtained. Then, according to the nearest number 21 indicated by the indicator arrow 22 as the fixed point, the pin 15 is inserted into the pin slot 17, so that the protrusion 151 of the pin 15 is locked and limited by the limiting slot 16, thereby fixing and limiting the outer blade assembly to prevent it from rotating, completing the assembly and adjusting the gap size of the grinding port 9.

[0037] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A bean grinder with an adjustable grinding opening, characterized in that: The application relates to a shell seat assembly, an outer cutter assembly and an inner cutter assembly, one side of the shell seat assembly is provided with a discharging port, the inner cutter assembly is installed in the shell seat assembly, the inner cutter assembly comprises a driving member and an inner cutter piece which are drivingly connected, the driving member is used for driving the inner cutter piece to rotate, the outer cutter assembly comprises an outer cutter seat and an outer cutter piece which is fixedly installed at the bottom of the outer cutter seat, the inner part of the outer cutter seat is formed with a feeding port, the outer cutter assembly is screw-jointedly installed in the shell seat assembly to realize height-adjustable, and a grinding port with adjustable gap size is formed between the outer cutter piece and the inner cutter piece.

2. A burr-adjustable bean grinder according to claim 1, characterized in that: The shell seat assembly comprises a base and a supporting seat which is installed at the top of the base, the discharging port is arranged at one side of the base and communicates with the grinding port, and the outer cutter assembly is screw-jointedly installed in the supporting seat to realize height-adjustable.

3. A burr-adjustable bean grinder according to claim 2, characterized in that: The circumferential outer wall of the outer cutter seat is provided with a spiral clamping groove, the circumferential inner wall of the supporting seat is provided with a protrusion, the protrusion is screw-jointedly matched with the spiral clamping groove to realize the height-adjustable installation of the outer cutter assembly in the supporting seat, and then the gap size of the grinding port is adjustable.

4. A burr-adjustable bean grinder according to claim 3, characterized in that: The spiral clamping groove comprises an inlet and outlet slot and an arc-shaped slot which is located at one side of the upper part of the inlet and outlet slot and gradually extends upwards.

5. The burr-adjustable bean grinder according to claim 1, characterized in that: The inner cutter piece is in the shape of a truncated cone, the outer cutter piece has a hollow channel which penetrates through the upper and lower parts, the inner cutter piece is located in the hollow channel of the outer cutter piece, the hollow channel comprises an inlet channel and a grinding channel which are distributed in the upper and lower parts, the caliber of the inlet channel gradually decreases from top to bottom, the caliber of the grinding channel gradually increases from top to bottom, and the grinding port is formed in the grinding channel between the bottom end of the outer cutter piece and the inner cutter piece.

6. The burr-adjustable bean grinder according to claim 2, characterized in that: The application further comprises a plug piece, the top of the circumferential inner wall of the supporting seat is provided with a plurality of limiting grooves, the outer cutter seat is provided with a plug groove, an opening is formed at the bottom outer side of the plug groove, the plug piece is inserted into the plug groove, and the bottom outer side of the plug piece protrudes out of the opening and is clamped and limited in the limiting groove.

7. A burr-adjustable bean grinder according to claim 6, characterized in that: The plug piece is a long strip-shaped plug piece, the lower part of the plug piece extends outward to form a protrusion which is used for clamping and limiting the limiting groove, and the outer side of the upper part of the plug piece is formed with a break.

8. The burr-adjustable bean grinder according to claim 6, characterized in that: The plug groove is two, and the two plug grooves are arranged at opposite sides of the outer cutter seat; a handle is formed between the two plug grooves of the outer cutter seat, and an indicating arrow which faces the two plug grooves is arranged on the handle.

9. The burr-adjustable bean grinder according to claim 6, characterized in that: The top of the base is provided with an outer ring shell, and the outer ring shell is located at the periphery of the supporting seat and the outer cutter seat, the outer ring shell is provided with an annular step which corresponds to the top periphery of the outer cutter seat, a plurality of digital indications are arranged on the annular step, and the digital indications one-to-one correspond to the number and position of the limiting grooves.

10. A burr-adjustable bean grinder according to claim 9, characterized in that: The digital indications are 72, namely, numbers 1-72, the angle between two adjacent numbers is 5 degrees, and the numbers 1-72 are sequentially and evenly arranged on the annular step in the clockwise direction.

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