A bean grinder

Abstract

The application belongs to the technical field of bean grinder, and particularly relates to a bean grinder which comprises a seat body, a grinding knife, a pressurized bean feeding part and a driving part. The seat body is provided with a chamber, a feeding inlet and a discharging outlet which are communicated with the chamber. The feeding inlet is located at the top of the chamber, and the discharging outlet is located at the bottom of the chamber. The pressurized bean feeding part is installed on a rotating shaft and located above the inner grinding knife to receive the beans to be ground entering from the feeding inlet. The outer periphery of the pressurized bean feeding part is provided with a plurality of spaced spiral blades. The bean grinder of the application sets the pressurized bean feeding part which can rotate synchronously above the inner grinding knife, so as to facilitate the control of the initial bean feeding amount, reduce the starting difficulty of the bean grinder, realize uniform bean feeding, increase the bean feeding pressure and improve the grinding efficiency.

Description

Technical Field

[0001] This application belongs to the field of coffee grinder technology, and specifically relates to a coffee grinder. Background Technology

[0002] Coffee is a widely enjoyed beverage. Besides the type and quality of coffee beans affecting the quality of coffee, the quality of the coffee grounds also has a significant impact. And the quality of the coffee grounds, in turn, largely depends on the choice of coffee grinder.

[0003] Currently, coffee grinders on the market all face problems such as uneven bean feeding, making them difficult to start, causing bean skipping, uneven grinding, and relatively low grinding efficiency. These issues urgently need to be addressed. Utility Model Content

[0004] The purpose of this application is to at least solve one of the technical problems existing in the prior art, and to provide a coffee grinder that, by setting a synchronously rotating pressurized bean feeder above the inner grinding blade, facilitates control of the initial bean feed amount, reduces the difficulty of starting the coffee grinder, achieves uniform bean feed, increases bean feed pressure, and improves grinding efficiency.

[0005] The technical solution adopted by this application to solve its technical problem is: A coffee grinder, comprising: The seat body has a chamber, an inlet and an outlet communicating with the chamber, the inlet being located at the top of the chamber and the outlet being located at the bottom of the chamber; A grinding tool includes an outer grinding tool and an inner grinding tool. The outer grinding tool is installed in the cavity, and the inner grinding tool is rotatably installed in the cavity via a rotating shaft and extends into the outer grinding tool. A grinding gap is formed between the inner grinding tool and the outer grinding tool. A pressurized bean feeder is installed on the rotating shaft and located above the inner grinding blade to receive the beans to be ground that enter through the feed inlet. The outer periphery of the pressurized bean feeder has multiple spaced spiral blades. A driving component is used to drive the rotating shaft to rotate.

[0006] In conjunction with the above implementation methods, in some implementation methods of this application, the base includes a first base and a second base. The first base is installed above the second base. The first base has a feeding chamber and a feeding port communicating with the feeding chamber. The second base has a grinding chamber and a discharging port communicating with the grinding chamber. The grinding chamber is connected to the feeding chamber. The outer grinding blade and the inner grinding blade are both located in the grinding chamber. The pressurized bean feeding part extends into the feeding chamber.

[0007] In some implementations of this application, in conjunction with the above implementations, the bottom surface of the feeding chamber slopes downward from the outside to the inside and forms a communication port that communicates with the grinding chamber. The pressurized bean feeder extends into the feeding chamber through the communication port.

[0008] In conjunction with the above implementation methods, some implementation methods of this application also include a powder-dispensing component, which is installed on the rotating shaft and located below the inner grinding blade. The powder-dispensing component has a plurality of powder-dispensing claws arranged at intervals along the circumference.

[0009] In some implementations of this application, in conjunction with the above implementations, the bottom surface of the powder-dispensing claw is inclined downward from the inside out and fits against the bottom surface of the grinding chamber.

[0010] In some implementations of this application, in conjunction with the above-described implementations, the powder-dispensing component includes a connecting body and a plurality of powder-dispensing claws disposed circumferentially on the outer periphery of the connecting body. The connecting body is mounted on the outer periphery of the rotating shaft and abuts against the bottom of the grinding chamber. The powder-dispensing claws extend outward in a direction tangential to the connecting body.

[0011] In some implementations of this application, in conjunction with the above-described implementations, the external grinding tool has an annular mounting body and a grinding tool body disposed inside the annular mounting body. The external grinding tool is mounted on the top of the second seat through the annular mounting body. The communication port is connected to the inner cavity of the annular mounting body. An annular groove is provided on the inner circumference of the top of the annular mounting body. A bearing is installed in the annular groove. The first seat and the second seat are threadedly connected and abut against the bearing.

[0012] In conjunction with the above implementation methods, some implementation methods of this application further include a discharge nozzle, which is detachably installed on the bottom outer side of the second base body. The discharge nozzle has a downward-opening discharge port and a connecting port that opens to one side of the second base body. The connecting port is higher than the discharge port and communicates with the bottom of the grinding chamber.

[0013] In some implementations of this application, in combination with the above implementations, multiple spiral blades are distributed at equal intervals on the outer periphery of the pressurized bean feeder.

[0014] In some implementations of this application, in conjunction with the above implementations, the driving component includes a motor, the rotating shaft extends downward out of the chamber and is connected to the output shaft of the motor, and the rotating shaft is provided with a locking component above the pressurized bean feeder.

[0015] One of the above-mentioned technical solutions has at least one of the following advantages or beneficial effects: The coffee grinder of this application has a synchronously rotating pressurized bean feeder above the inner grinding blade, which receives the coffee beans to be ground at the feed inlet. After receiving the coffee beans, the rotating pressurized bean feeder conveys the coffee beans downwards under the action of the spiral blades, which facilitates control of the initial bean feed amount and reduces the difficulty of starting the coffee grinder. Since the gap formed between two adjacent spiral blades is relatively fixed, it can play a role in quantitative control of the bean feed amount, achieving uniform bean feed. In addition, the bean beans to be ground can increase the feed pressure under the push of the spiral blades, achieving a pre-crushing effect, thereby solving the problem of bean jumping caused by high-speed rotation during the grinding process, and the subsequent grinding efficiency is also greatly improved. Attached Figure Description

[0016] The following description, in conjunction with the accompanying drawings, further illustrates this application: Figure 1 This is a schematic diagram of the structure of one embodiment of this application; Figure 2 yes Figure 1 A cross-sectional schematic diagram of one embodiment is shown. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0018] In this application, when directions (up, down, left, right, front, and back) are described, it is only for the purpose of describing the technical solution of this application, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on this application.

[0019] In this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this application, the terms "first" and "second" are used only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0020] In this application, unless otherwise explicitly defined, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to direct connection or indirect connection through an intermediate medium; they can refer to fixed connection, detachable connection, or integral molding; they can refer to mechanical connection, electrical connection, or connection capable of mutual communication; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this application based on the specific content of the technical solution.

[0021] See Figure 1 and Figure 2 This application provides a coffee grinder, including a base 1, grinding blades, a pressurized bean feeder 2, and a drive unit 3. The base 1 has a chamber, an inlet 41 communicating with the chamber, and an outlet 42. The inlet 41 is located at the top of the chamber and is used to feed coffee beans or other beans, i.e., the beans to be ground. The outlet 42 is located at the bottom of the chamber and is used to output ground coffee bean powder or other powdery substances.

[0022] The grinding blade includes an outer grinding blade 51 and an inner grinding blade 52. The outer grinding blade 51 is installed inside the chamber, and the inner grinding blade 52 is rotatably installed in the chamber via a rotating shaft 6 and extends into the outer grinding blade 51. A grinding gap 53 is formed between the inner grinding blade 52 and the outer grinding blade 51. After coffee beans enter the chamber through the feed inlet 41, the inner grinding blade 52 can rotate under the drive of the rotating shaft 6 and cooperate with the outer grinding blade 51 to grind the beans. The powder formed by grinding falls into the chamber through the grinding gap 53 and is finally output through the discharge outlet 42.

[0023] The pressurized bean feeder 2 is mounted on the rotating shaft 6 and located above the inner grinding blade 52 to receive the beans to be ground entering through the feed inlet 41. The outer periphery of the pressurized bean feeder 2 has multiple spaced spiral blades 21. The drive unit 3 is used to drive the rotating shaft 6 to rotate, and the inner grinding blade 52 and the pressurized bean feeder 2 rotate together with the rotating shaft 6.

[0024] The coffee grinder described in this application features a synchronously rotating pressurized bean feeder 2 positioned above the inner grinding blade 52. This pressurized bean feeder 2 receives the coffee beans from the feed inlet 41, controlling the amount of beans fed in to achieve uniform bean feeding. The coffee beans, processed by the pressurized bean feeder 2, then fall into the grinding gap 53 formed between the inner grinding blade 52 and the outer grinding blade 51, where they are ground into powder and finally output.

[0025] In this system, the rotating pressurized bean feeder 2 receives the beans to be ground, which are then conveyed downwards by the spiral blades 21. This facilitates control of the initial bean feed amount and reduces the difficulty of starting the grinder. Since the gap between adjacent spiral blades 21 is relatively fixed, it allows for quantitative control of the bean feed amount, ensuring uniform bean feeding. Furthermore, the pressure from the spiral blades 21 increases the bean feed pressure, achieving a pre-crushing effect and thus solving the problem of bean jumping during grinding caused by high-speed rotation. This significantly improves subsequent grinding efficiency.

[0026] See Figure 1 and Figure 2 In some embodiments, the base 1 includes a first base 11 and a second base 12. The first base 11 is installed above the second base 12. The first base 11 is provided with a feeding chamber 111 and a feeding port 41 communicating with the feeding chamber 111. The second base 12 is provided with a grinding chamber 121 and a discharging port 42 communicating with the grinding chamber 121. The grinding chamber 121 is connected to the feeding chamber 111. The outer grinding blade 51 and the inner grinding blade 52 are both located in the grinding chamber 121. The pressurized bean feeder 2 extends into the feeding chamber 111 to receive the beans to be ground more efficiently and smoothly, and to convey them downwards.

[0027] Further, see Figure 2 The bottom surface 112 of the feeding chamber 111 slopes downward from the outside to the inside, forming a communication port that connects with the grinding chamber 121. The pressurized bean feeder 2 extends into the feeding chamber 111 through the communication port. Setting the bottom surface of the feeding chamber 111 to slope towards the communication port facilitates the smooth sliding of the beans to be ground into the pressurized bean feeder 2.

[0028] See Figure 2 In some embodiments, the coffee grinder also includes a powder-dispensing component 7, which is mounted on the rotating shaft 6 and located below the inner grinding blade 52. The powder-dispensing component 7 has a plurality of circumferentially spaced powder-dispensing claws 71. When the rotating shaft 6 rotates, it drives the powder-dispensing component 7 to rotate, and the powder-dispensing claws 71 can dispense the ground coffee bean powder, etc., so that it is output from the discharge port 42.

[0029] Furthermore, the bottom surface of the powder-dispensing claw 71 slopes downwards from the inside out and fits against the bottom surface of the grinding chamber 121, and the bottom of the discharge port 42 is not higher than the bottom surface of the grinding chamber 121. The inclined bottom surfaces of the powder-dispensing claw 71 and the grinding chamber 121 facilitate more efficient and comprehensive delivery of powder to the discharge port 42, preventing grinding powder residue from remaining in the grinding chamber 121.

[0030] See Figure 2In some embodiments, the powder-dispensing component 7 includes a connecting body 72 and a plurality of powder-dispensing claws 71 circumferentially disposed on the outer periphery of the connecting body 72. The connecting body 72 is mounted on the outer periphery of the rotating shaft 6 and abuts against the bottom of the grinding chamber 121, thereby achieving stable installation of the powder-dispensing component 7. The powder-dispensing claws 71 extend outward in a direction tangential to the connecting body 72, facilitating more efficient powder dispensing.

[0031] See Figure 2 In some embodiments, the outer grinding tool 51 has an annular mounting body 511 and a grinding tool body 512 disposed inside the annular mounting body 511. The outer grinding tool 51 is mounted on the top of the second seat 12 through the annular mounting body 511. The communication port is connected to the inner cavity of the annular mounting body 511. An annular groove is provided on the inner circumference of the top of the annular mounting body 511, and a bearing 8 is installed in the annular groove. The first seat 11 and the second seat 12 are threadedly connected and abut against the bearing 8 to stably support the first seat 11.

[0032] See Figure 2 In some embodiments, the grinder also includes a spout 9, which is detachably mounted on the bottom outer side of the second base 12. The spout 9 has a downward-opening outlet 42 and a connecting port opening to one side of the second base 12. The connecting port is higher than the outlet 42 and communicates with the bottom of the grinding chamber 121. By providing the spout 9, it is more convenient for users to collect the grinder powder, thus improving the user experience.

[0033] See Figure 2 In some embodiments, the drive unit 3 includes a motor, and the rotating shaft 6 extends downward into the chamber and is connected to the output shaft of the motor, enabling automatic grinding for user convenience. A locking element is provided above the pressurized bean inlet 2 on the rotating shaft 6 to lock the pressurized bean inlet 2, ensuring the stability of the connection between the pressurized bean inlet 2, the internal grinding blade 52, and other components and the rotating shaft 6. Alternatively, the drive unit 3 can be manually operated to rotate the rotating shaft 6; for example, the drive unit 3 can be connected to the top of the rotating shaft 6 using a crank handle for manual grinding, which is not limited here.

[0034] See Figure 2 In some embodiments, multiple spiral blades 21 are evenly distributed on the outer periphery of the pressurized bean feeder 2 to ensure that the spacing between any two adjacent spiral blades 21 is consistent, which is more conducive to uniform bean feed and better grinding effect and grinding efficiency.

[0035] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this application, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A coffee grinder, characterized in that, include: The seat body has a chamber, an inlet and an outlet communicating with the chamber, the inlet being located at the top of the chamber and the outlet being located at the bottom of the chamber; A grinding tool includes an outer grinding tool and an inner grinding tool. The outer grinding tool is installed in the cavity, and the inner grinding tool is rotatably installed in the cavity via a rotating shaft and extends into the outer grinding tool. A grinding gap is formed between the inner grinding tool and the outer grinding tool. A pressurized bean feeder is installed on the rotating shaft and located above the inner grinding blade to receive the beans to be ground that enter through the feed inlet. The outer periphery of the pressurized bean feeder has multiple spaced spiral blades. A driving component is used to drive the rotating shaft to rotate.

2. The coffee grinder according to claim 1, characterized in that, The base includes a first base and a second base. The first base is installed above the second base. The first base has a feeding chamber and a feeding port communicating with the feeding chamber. The second base has a grinding chamber and a discharging port communicating with the grinding chamber. The grinding chamber is connected to the feeding chamber. The outer grinding blade and the inner grinding blade are both located in the grinding chamber. The pressurized bean feeding part extends into the feeding chamber.

3. The coffee grinder according to claim 2, characterized in that, The bottom surface of the feeding chamber slopes downward from the outside to the inside, forming a communication port that communicates with the grinding chamber. The pressurized bean feeder extends into the feeding chamber through the communication port.

4. The coffee grinder according to claim 2 or 3, characterized in that, It also includes a powder-dispensing component, which is mounted on the rotating shaft and located below the inner grinding blade. The powder-dispensing component has a plurality of powder-dispensing claws spaced apart circumferentially.

5. The coffee grinder according to claim 4, characterized in that, The bottom surface of the powder-removing claw slopes downward from the inside out and fits against the bottom surface of the grinding chamber.

6. The coffee grinder according to claim 5, characterized in that, The powder-dispensing component includes a connecting body and a plurality of powder-dispensing claws arranged circumferentially on the outer periphery of the connecting body. The connecting body is installed on the outer periphery of the rotating shaft and abuts against the bottom of the grinding chamber. The powder-dispensing claws extend outward in a direction tangential to the connecting body.

7. The coffee grinder according to claim 3, characterized in that, The external grinding tool has an annular mounting body and a grinding tool body located inside the annular mounting body. The external grinding tool is mounted on the top of the second seat through the annular mounting body. The communication port is connected to the inner cavity of the annular mounting body. An annular groove is provided on the inner circumference of the top of the annular mounting body. A bearing is installed in the annular groove. The first seat and the second seat are threadedly connected and abut against the bearing.

8. The coffee grinder according to claim 2, characterized in that, It also includes a discharge nozzle, which is detachably installed on the bottom outer side of the second base. The discharge nozzle has a downward-opening discharge port and a connecting port that opens to one side of the second base. The connecting port is higher than the discharge port and communicates with the bottom of the grinding chamber.

9. The coffee grinder according to claim 1, characterized in that, Multiple spiral blades are evenly distributed around the outer periphery of the pressurized bean feeder.

10. The coffee grinder according to claim 1, characterized in that, The driving component includes a motor, the rotating shaft extends downward from the chamber and is connected to the output shaft of the motor, and a locking component is provided above the pressurized bean feeder on the rotating shaft.

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