Grinder

Abstract

The utility model discloses a grinder, which belongs to the technical field of coffee bean grinding and comprises a control circuit board, a shell support, a driving component, a grinding component and at least one alarm component, the driving component is mounted at a first end of the shell support, and the grinding component is mounted at a second end of the shell support; the driving assembly comprises a driving piece and a transmission piece, and the driving piece and the transmission piece are both installed on the shell support. The driving part is provided with a power output end, the grinding assembly is provided with a power receiving end, the power output end is in transmission connection with the power receiving end through a transmission part, and the alarm assembly is installed at the power output end or the power receiving end. The alarm assembly is electrically connected with the signal receiving end of the control circuit board, and the driving piece is electrically connected with the signal sending end of the control circuit board. According to the grinder, the alarm assembly is arranged, so that the driving piece can be automatically controlled to stop running when the grinding assembly is in an idling and stuck state, and the problem that large noise is generated by adopting a mechanical clutch is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of coffee bean grinding, and in particular to a grinder. Background Technology

[0002] Coffee made from coffee beans needs to be ground into powder. At home, grinding coffee beans requires a grinder. You put the coffee beans into the grinder, turn it on, and it grinds. During use, the grinding mechanism may get stuck due to foreign objects in the coffee beans, causing the motor to stall and burn out. However, existing grinders use a mechanical clutch to prevent motor stalling, but this design is noisy. Utility Model Content

[0003] The purpose of this invention is to improve the problem of excessive noise generated by existing grinders through mechanical clutches, and to provide a grinder accordingly.

[0004] The technical solutions for achieving the above objectives include the following:

[0005] A grinder includes a control circuit board, a housing bracket, a drive assembly, a grinding assembly, and at least one alarm assembly. The drive assembly is mounted on a first end of the housing bracket, and the grinding assembly is mounted on a second end of the housing bracket. The drive assembly includes a drive component and a transmission component, both of which are mounted on the housing bracket.

[0006] The driving component has a power output end, the grinding component has a power receiving end, the power output end is connected to the power receiving end through a transmission component, and the alarm component is installed on the power output end or the power receiving end.

[0007] The alarm component is electrically connected to the signal receiving end of the control circuit board, and the driving component is electrically connected to the signal transmitting end of the control circuit board.

[0008] In one embodiment, each of the alarm components includes a sensing element and a triggering element; the driving component includes a first driving shaft and a main body; the main body is fixed to the housing support; and the grinding component includes a second driving shaft, wherein the first driving shaft is in transmission cooperation with the second driving shaft through a rotating component.

[0009] The triggering element is mounted on the first drive shaft or the second drive shaft, and the sensing element is mounted on the main body or the housing support; the triggering element is positioned close to the sensing element and engages with the sensing element.

[0010] In one embodiment, the grinding assembly further includes a movable grinding wheel and a fixed grinding wheel. The movable grinding wheel is rotatably disposed within the housing support and fixed to the first end of the second drive shaft. The fixed grinding wheel is installed within the housing support, and a grinding chamber is formed between the inner wall of the fixed grinding wheel and the outer wall of the movable grinding wheel.

[0011] The housing bracket has a through hole, through which the second end of the second drive shaft passes, and a trigger element is mounted on the second end of the second drive shaft.

[0012] In one embodiment, the triggering element is a columnar magnet, which is sleeved on the outside of the first drive shaft or the second drive shaft; the sensing element is a Hall element.

[0013] In one embodiment, the alarm component further includes a clamping member and a mounting plate. The mounting plate is mounted on the housing bracket or the main body. A first end of the clamping member is fixed to the mounting plate, and a second end of the clamping member has a clamping position. The sensing element is disposed on the clamping position.

[0014] In one embodiment, the clamping member includes a first clamping rod, a second clamping rod, and a positioning block. The first ends of the first clamping rod and the second clamping rod are fixed to the mounting plate, and the clamping position is formed between the second ends of the first clamping rod and the second clamping rod.

[0015] The positioning block is mounted on the mounting plate, and the sensing element has a positioning groove that mates with the positioning block.

[0016] In one embodiment, both the first clamping rod and the second clamping rod are barbed structures, and the bottom wall of the barbed structure abuts against the outer wall of the sensing element.

[0017] In one embodiment, the alarm component has two sets, one set of alarm components is installed at the power output end, and the other set of alarm components is installed at the power receiving end. The two sets of alarm components are electrically connected to the drive unit through a control circuit board.

[0018] In one embodiment, the driving member and the grinding assembly are respectively disposed on both sides of the housing support, and the transmission member is disposed between the driving member and the grinding assembly;

[0019] The driving component and the grinding assembly are arranged vertically and staggered.

[0020] In one embodiment, the grinder further includes a material chamber and a powder outlet pipe. The material chamber is installed at the upper end of the grinding assembly and communicates with the grinding chamber of the grinding assembly. The powder outlet pipe is installed on the side wall of the grinding assembly and communicates with the grinding chamber.

[0021] The technical solution provided by this utility model has the following advantages and effects:

[0022] When a foreign object enters the grinding assembly, causing it to jam and stop rotating, the alarm component senses this stop in the gears and shafts at the power output or power receiver. At this point, the alarm component generates a first electrical signal, which is sent to the control circuit board, which then stops the drive mechanism. When the grinding assembly has ground coffee beans into powder, the resistance is low, and the assembly is idling. The alarm component senses this high rotational speed in the gears and shafts at the power output or power receiver, generating a second electrical signal, which is also sent to the control circuit board, which then stops the drive mechanism. Therefore, this grinder, by incorporating an alarm component, can automatically stop the drive mechanism when the grinding assembly is idling or jammed, thus solving the problem of excessive noise generated by mechanical clutches. Attached Figure Description

[0023] The accompanying drawings illustrate specific examples of the technical solutions described in this utility model, and together with the detailed embodiments, form part of the specification, serving to explain the technical solutions, principles, and effects of this utility model.

[0024] Unless otherwise specified or defined, the same reference numerals in different figures represent the same or similar technical features, and different reference numerals may be used to represent the same or similar technical features.

[0025] Figure 1 This is a schematic diagram of a grinder in one embodiment of the present invention;

[0026] Figure 2 This is a cross-sectional view of the grinder in one embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the outer shell support in one embodiment of the present invention;

[0028] Figure 4 This is one embodiment of the present invention. Figure 1 Enlarged view of point A in the middle;

[0029] Figure 5 This is one embodiment of the present invention. Figure 3 Enlarged view at point B in the middle;

[0030] Explanation of reference numerals in the attached figures:

[0031] 100. Grinding machine; 1. Housing support; 11. Through hole; 2. Drive assembly; 21. Drive component; 211. First drive shaft; 212. Main body; 22. Transmission component; 201. Power output end; 3. Powder outlet pipe; 4. Material chamber; 5. Grinding assembly; 51. Second drive shaft; 52. Moving grinding wheel; 53. Fixed grinding wheel; 54. Grinding chamber; 501. Power receiving end; 6. Alarm assembly; 61. Sensing element; 62. Triggering element; 63. Clamping component; 631. First clamping rod; 632. Second clamping rod; 633. Positioning block; 64. Mounting plate. Detailed Implementation

[0032] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0033] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0034] Unless otherwise specified or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0035] It should be noted that when a component is considered "fixed" to another component, it can be directly fixed to the other component or there can be an intervening component; when a component is considered "connected" to another component, it can be directly connected to the other component or there can be an intervening component; when a component is considered "mounted" on another component, it can be directly mounted on the other component or there can be an intervening component; when a component is considered "placed" on another component, it can be directly placed on the other component or there can be an intervening component.

[0036] This utility model proposes a grinder 100, such as Figures 1 to 5 As shown, the device includes a control circuit board, a housing bracket 1, a drive assembly 2, a grinding assembly 5, and at least one alarm assembly 6. The drive assembly 2 is mounted on the first end of the housing bracket 1, and the grinding assembly 5 is mounted on the second end of the housing bracket 1. The drive assembly 2 includes a drive element 21 and a transmission element 22, both of which are mounted on the housing bracket 1. The drive element 21 has a power output end 201, and the grinding assembly 5 has a power receiving end 501. The power output end 201 is connected to the power receiving end 501 via the transmission element 22. The alarm assembly 6 is mounted on either the power output end 201 or the power receiving end 501. The alarm assembly 6 is electrically connected to the signal receiving end of the control circuit board, and the drive element 21 is electrically connected to the signal transmitting end of the control circuit board.

[0037] Specifically, the housing bracket 1 supports the drive assembly 2 and the grinding assembly 5. The drive component 21 of the drive assembly 2 provides power and transmits the power to the grinding assembly 5 through the transmission component 22, so that the grinding assembly 5 grinds coffee beans into coffee powder. The drive component 21 has a power output end 201, and the grinding assembly 5 has a power receiving end 501. The power from the power output end 201 is transmitted to the power receiving end 501 through the transmission component 22. The transmission component 22 can change the rotational speed, transmission direction, and torque of the power output end 201. The alarm component 6 is installed at the power output end 201 or the power receiving end 501 to monitor the rotational speed of the gears or shafts in the power output end 201 or the power receiving end 501.

[0038] When a foreign object enters the grinding assembly 5, causing it to jam and stop rotating, the alarm assembly 6 senses that the gears and shafts at the power output end 201 or power receiver end 501 have stopped operating. At this time, the alarm assembly 6 generates a first electrical signal, which is sent to the control circuit board, which then controls the drive component 21 to stop operating. When the grinding assembly 5 has ground coffee beans into coffee powder, the resistance of the grinding assembly 5 is low, and it is in an idling state. The alarm assembly 6 senses that the rotational speed of the gears and shafts at the power output end 201 or power receiver end 501 is high, and at this time, the alarm assembly 6 generates a second electrical signal, which is sent to the control circuit board, which then controls the drive component 21 to stop operating. Therefore, by setting the alarm assembly 6, the grinder 100 can automatically control the drive component 21 to stop operating when the grinding assembly 5 is in an idling or jamming state, solving the problem of excessive noise generated by using a mechanical clutch.

[0039] In this embodiment, the electrical signal in the alarm component 6 can be a speed signal, a current signal, or a voltage signal, and no particular limitation is made here.

[0040] Preferably, each alarm component 6 includes a sensing element 61 and a triggering element 62. The driving component 21 includes a first driving shaft 211 and a main body 212. The main body 212 is fixed to the housing support 1. The grinding component 5 includes a second driving shaft 51. The first driving shaft 211 is in transmission cooperation with the second driving shaft 51 through a rotating component 22. The triggering element 62 is installed on the first driving shaft 211 or the second driving shaft 51. The sensing element 61 is installed on the main body 212 or the housing support 1. The triggering element 62 is disposed close to the sensing element 61 and is in sensing cooperation with the sensing element 61.

[0041] Specifically, the main body 212 is used to drive the first drive shaft 211 to rotate. The first drive shaft 211 is connected to the second drive shaft 51 through the transmission component 22. When the trigger element 62 is installed on the first drive shaft 211 or the second drive shaft 51, the first drive shaft 211 or the second drive shaft 51 drives the trigger element 62 to rotate. The trigger element 62 is set close to the sensing element 61 and is connected to the sensing element 61. The sensing element 61 is used to monitor the rotation speed of the first drive shaft 211 and the second drive shaft 51. When the grinding assembly 5 is idling, the rotation speed of the second drive shaft 51 is high, and the rotation speed of the first drive shaft 211 is also high. When the grinding assembly 5 is jammed, the second drive shaft 51 and the first drive shaft 211 stop rotating. The sensing element 61 senses the operating state of the trigger element 62, thereby generating the first electrical signal and the second electrical signal.

[0042] Preferably, the grinding assembly 5 further includes a movable grinding wheel 52 and a fixed grinding wheel 53. The movable grinding wheel 52 is rotatably disposed within the housing support 1 and fixed to the first end of the second drive shaft 51. The fixed grinding wheel 53 is installed within the housing support 1, and a grinding chamber 54 is formed between the inner wall of the fixed grinding wheel 53 and the outer wall of the movable grinding wheel 52. The housing support 1 has a through hole 11 through which the second end of the second drive shaft 51 passes, and the trigger element 62 is installed at the second end of the second drive shaft 51. Specifically, when the second drive shaft 51 rotates, it drives the movable grinding wheel 52 to rotate, while the fixed grinding wheel 53 remains stationary. The coffee beans are located within the grinding chamber 54. When the movable grinding wheel 52 rotates, it cooperates with the fixed grinding wheel 53 to squeeze and crush the coffee beans. When there are foreign objects in the grinding chamber 54, the movable grinding wheel 52 is jammed, the second drive shaft 51 stops rotating, and the trigger element 62 also remains stationary. The through hole 11 allows the second end of the second drive shaft 51 to pass through easily, and facilitates the placement of the trigger element 62 outside the housing bracket 1, making the arrangement of the trigger element 62 and the sensing element 61 more reasonable.

[0043] Preferably, the trigger element 62 is a columnar magnet, which is sleeved on the outside of the first drive shaft 211 or the second drive shaft 51; the sensing element 61 is a Hall element. Specifically, the magnet has a high energy density and can provide a strong magnetic field in a small volume. The magnet material, such as neodymium iron boron, has excellent durability and stability and can work for a long time in harsh environments without failure. The Hall element has high precision and linearity, miniaturization and lightweight, and strong anti-interference ability. The combination of magnet and Hall element can improve the service life and reliability of alarm component 6.

[0044] In other embodiments, the alarm component 6 may also include an encoder, which can indirectly calculate the rotational speed by measuring pulse signals; its core principle is to convert mechanical motion into electrical signals, and then calculate the rotational speed by counting pulses and calculating time.

[0045] Preferably, the alarm assembly 6 further includes a clamping member 63 and a mounting plate 64. The mounting plate 64 is mounted on the housing support 1 or the main body 212. The first end of the clamping member 63 is fixed to the mounting plate 64, and the second end of the clamping member 63 has a clamping position, on which the sensing element 61 is disposed. Specifically, the clamping member 63 is fixed to the housing support 1 or the main body 212 by the mounting plate 64. The clamping member 63 is used to clamp the sensing element 61, thereby improving the stability of the clamping member 63 on the housing support 1.

[0046] Preferably, the clamping member 63 includes a first clamping rod 631, a second clamping rod 632, and a positioning block 633. The first ends of the first clamping rod 631 and the second clamping rod 632 are fixed to the mounting plate 64, and a clamping position is formed between the second ends of the first clamping rod 631 and the second clamping rod 632. The positioning block 633 is mounted on the mounting plate 64, and the sensing element 61 has a positioning groove that cooperates with the positioning block 633. Specifically, the positioning block 633 is used to engage with the positioning groove of the sensing element 61 and to position the installation position of the sensing element 61. A clamping position is formed between the first clamping rod 631 and the second clamping rod 632, and the inner walls of the first clamping rod 631 and the second clamping rod 632 abut against the outer wall of the sensing element 61, further improving the stability of the sensing element 61 in the clamping position.

[0047] Preferably, both the first clamping rod 631 and the second clamping rod 632 have a barbed structure, with the bottom wall of the barbed structure abutting against the outer wall of the sensing element 61. Specifically, the barbed structure of the first clamping rod 631 and the second clamping rod 632 can further increase the contact area between the first clamping rod 631 and the second clamping rod 632 and the sensing element 61, and abut against the adjacent outer walls of the sensing element 61 from different directions, further improving the stability of the sensing element 61 in the clamping position.

[0048] Preferably, the alarm component 6 has two sets, one set installed at the power output end 201 and the other set installed at the power receiving end 501. The two sets of alarm components 6 are electrically connected to the drive component 21 via a control circuit board. Specifically, since the rotational speed of the power output end 201 varies little, its output speed and torque are relatively stable. One set of alarm components 6 monitors the operating status of the power output end 201; while the power receiving end 501 directly reflects the operating status of the grinding component 5, the other set of alarm components 6 monitors the operating status of the power receiving end 501. The transmission component 22 has different gears, therefore, the power change of the power receiving end 501 is monitored by the other set of alarm components 6. The two sets of alarm components 6 monitor the power output end 201 and the power receiving end 501 respectively, which can improve the fault tolerance of the grinder 100. When one set of alarm components 6 is damaged, the other set of alarm components 6 can also generate a first electrical signal and a second electrical signal to control the drive component 21.

[0049] Preferred, such as Figure 2 As shown, the drive component 21 and the grinding assembly 5 are respectively disposed on both sides of the housing support 1, and the transmission component 22 is disposed between the drive component 21 and the grinding assembly 5; the drive component 21 and the grinding assembly 5 are distributed vertically and staggered. Specifically, by placing the drive component 21 on one side of the grinding assembly 5 and disposing it at the lower end of the housing support 1, a certain clearance space is provided below the grinding assembly 5, which can be used to place a container for holding coffee powder, further improving the compactness of the grinder 100 and making the grinder 100 more miniaturized.

[0050] Preferably, the grinder 100 further includes a material chamber 4 and a powder outlet pipe 3. The material chamber 4 is installed at the upper end of the grinding assembly 5 and communicates with the grinding chamber 54 of the grinding assembly 5. The powder outlet pipe 3 is installed on the side wall of the grinding assembly 5 and communicates with the grinding chamber 54. Specifically, the material chamber 4 is used to hold coffee beans, and the material chamber 4 is connected to the grinding chamber 54. The coffee beans enter the grinding chamber 54 and are ground into coffee powder by the grinding assembly 5, and the coffee powder is discharged from the side wall of the grinding assembly 5 into the powder outlet pipe 3.

[0051] When referencing drawings, new features are explained. To avoid redundant references to drawings that would make the description less concise, features already described will not be referenced again on the drawings if the description is clear.

[0052] The purpose of the above embodiments is to reproduce and derive the technical solution of this utility model by way of example, and to fully describe the technical solution, purpose and effect of this utility model. The purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosed content of this utility model, and it is not intended to limit the protection scope of this utility model.

[0053] The above embodiments are not an exhaustive list based on the present invention, and there may be other embodiments not listed. Any substitutions and improvements made without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A grinder, characterized in that, include: The system includes a control circuit board, a housing bracket, a drive assembly, a grinding assembly, and at least one alarm assembly. The drive assembly is mounted on a first end of the housing bracket, and the grinding assembly is mounted on a second end of the housing bracket. The drive assembly includes a drive component and a transmission component, both of which are mounted on the housing bracket. The driving component has a power output end, the grinding component has a power receiving end, the power output end is connected to the power receiving end through a transmission component, and the alarm component is installed on the power output end and / or the power receiving end. The alarm component is electrically connected to the control circuit board, and the driving component is electrically connected to the control circuit board.

2. The grinder as described in claim 1, characterized in that, Each of the alarm components includes a sensing element and a triggering element. The driving component includes a first driving shaft and a main body. The main body is fixed to the housing support. The grinding component includes a second driving shaft. The first driving shaft is in transmission cooperation with the second driving shaft through a rotating component. The triggering element is mounted on the first drive shaft or the second drive shaft, and the sensing element is mounted on the main body or the housing support; the triggering element is positioned close to the sensing element and engages with the sensing element.

3. The grinder as described in claim 2, characterized in that, The grinding assembly also includes a movable grinding wheel and a fixed grinding wheel. The movable grinding wheel is rotatably disposed inside the housing support and fixed to the first end of the second drive shaft. The fixed grinding wheel is installed inside the housing support, and a grinding chamber is formed between the inner wall of the fixed grinding wheel and the outer wall of the movable grinding wheel. The housing bracket has a through hole, through which the second end of the second drive shaft passes, and a trigger element is mounted on the second end of the second drive shaft.

4. The grinder as described in claim 2, characterized in that, The triggering element is a columnar magnet, which is sleeved on the outside of the first drive shaft or the second drive shaft; the sensing element is a Hall element.

5. The grinder as described in claim 2, characterized in that, The alarm assembly also includes a clamping component and a mounting plate. The mounting plate is mounted on the housing bracket or the main body. The first end of the clamping component is fixed to the mounting plate, and the second end of the clamping component has a clamping position. The sensing element is disposed on the clamping position.

6. The grinder as described in claim 5, characterized in that, The clamping member includes a first clamping rod, a second clamping rod, and a positioning block. The first ends of the first clamping rod and the second clamping rod are fixed to the mounting plate, and the clamping position is formed between the second ends of the first clamping rod and the second clamping rod. The positioning block is mounted on the mounting plate, and the sensing element has a positioning groove that mates with the positioning block.

7. The grinder as described in claim 6, characterized in that, Both the first clamping rod and the second clamping rod have a barbed structure, and the bottom wall of the barbed structure abuts against the outer wall of the sensing element.

8. The grinder as claimed in claim 1, characterized in that, The alarm components consist of two sets, one set installed at the power output end and the other set installed at the power receiving end. The two sets of alarm components are electrically connected to the drive unit via a control circuit board.

9. The grinder according to any one of claims 1 to 8, characterized in that, The driving component and the grinding assembly are respectively disposed on both sides of the housing support, and the transmission component is disposed between the driving component and the grinding assembly; The driving component and the grinding assembly are arranged vertically and staggered.

10. The grinder according to any one of claims 1 to 8, characterized in that, The grinder also has a material chamber and a powder outlet pipe. The material chamber is installed at the upper end of the grinding assembly and communicates with the grinding chamber of the grinding assembly. The powder outlet pipe is installed on the side wall of the grinding assembly and communicates with the grinding chamber.

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