Electric grinder

Abstract

The utility model relates to an electric grinder. The electric grinder comprises a shell assembly, a power assembly, an inner grinding head, an outer grinding head, a connecting assembly and an adjusting knob, the power assembly is arranged in the shell assembly; the inner grinding head is arranged in the shell assembly and is in transmission connection with the power assembly; the outer grinding head is arranged in the shell assembly, and a gap is formed between the outer grinding head and the inner grinding head; the connecting assembly is arranged in the shell assembly, the connecting assembly is configured to slide in the axial direction of the shell assembly but cannot rotate relative to the shell assembly, one end of the connecting assembly is connected with the outer grinding head, and the other end of the connecting assembly is provided with a first inclined face; the adjusting knob is rotationally connected with the shell assembly, a second inclined face is arranged at the end, facing the connecting assembly, of the adjusting knob, and the second inclined face abuts against the first inclined face. According to the electric grinder, the connecting assembly is moved by rotating the adjusting knob, so that the gap between the outer grinding head and the inner grinding head is adjusted, a user can conveniently adjust gears, and the hands of the user and the discharging port cannot be stained.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliances technology, and in particular to an electric grinder. Background Technology

[0002] Electric grinders adjust the gap between the inner and outer grinding heads to regulate the particle size of the ground material. Since the inner grinding head is connected to the transmission structure, adjusting the inner grinding head's setting would be complex or could interfere with the transmission. Therefore, electric grinders typically adjust the outer grinding head instead. However, existing settings for adjusting the outer grinding head are usually located near it, making it easy for users to touch and contaminate the discharge port during adjustment. Utility Model Content

[0003] The main purpose of this utility model is to provide an electric grinder that solves the technical problem that adjusting the speed of an electric grinder can easily soil the user's hands and the discharge port.

[0004] To achieve the above objectives, this utility model provides an electric grinder, which includes a housing assembly, a power assembly, an inner grinding head, an outer grinding head, a connecting assembly, and an adjustment knob. The power assembly is located inside the housing assembly. The inner grinding head is located inside the housing assembly and is connected to the power assembly for transmission. The outer grinding head is located inside the housing assembly, and a gap is formed between the outer grinding head and the inner grinding head. The connecting assembly is located inside the housing assembly and is configured to slide along the axial direction of the housing assembly but not rotate relative to the housing assembly. One end of the connecting assembly is connected to the outer grinding head, and the other end of the connecting assembly has a first inclined surface. The adjustment knob is rotatably connected to the housing assembly, and the end of the adjustment knob facing the connecting assembly has a second inclined surface, which abuts against the first inclined surface.

[0005] Optionally, the bottle body is provided with a guide portion at the end of the opening away from the receiving cavity, the guide portion is gradually tapered in the direction of the opening toward the receiving cavity, and the guide portion is spaced apart from the insertion portion.

[0006] Optionally, the housing assembly includes a top cover, an outer shell, a bottom cover, and a material cup. The top cover has a discharge port. One end of the outer shell is connected to the top cover, and the connecting assembly is located inside the outer shell. The other end of the outer shell is rotatably connected to the adjusting knob. The bottom cover is rotatably connected to the end of the adjusting knob opposite to the outer shell, and the bottom cover has a material inlet. The material cup is detachably connected to the bottom cover, and the material cup communicates with the material inlet.

[0007] Optionally, the connecting assembly includes an adjusting bracket and a fixing cover. The adjusting bracket is slidably connected to the housing and extends along the axial direction of the housing. The fixing cover is connected to the adjusting bracket at one end facing the top cover, and the outer grinding head is fixed to the fixing cover.

[0008] Optionally, the inner sidewall of the outer casing has a protrusion forming a retaining strip extending along the axial direction of the outer casing, and the outer sidewall of the adjusting bracket has a retaining groove extending along the axial direction of the outer casing, and the retaining strip can be slidably connected to the retaining groove along the axial direction of the outer casing.

[0009] Optionally, the periphery of the end of the adjusting bracket away from the fixed cover extends along the axial direction of the outer shell to form a first support portion. The length of the first support portion in the axial direction of the outer shell gradually increases or decreases along the circumferential direction of the outer shell, so as to form the first inclined surface at the end of the first support portion away from the fixed cover.

[0010] Optionally, the peripheral edge of the adjustment knob facing one end of the housing extends along the axial direction of the housing to form a second support portion. The length of the second support portion in the axial direction of the housing gradually decreases or increases along the circumferential direction of the housing to form a second inclined surface at one end of the second support portion facing the housing.

[0011] Optionally, the end of the adjusting bracket facing away from the first inclined surface is provided with an elastic element, and the other end of the elastic element is connected to the inner wall of the outer shell.

[0012] Optionally, the number of the first support portion and the second support portion are the same and there are multiple first support portions connected end to end along the circumference of the outer shell. Adjacent first support portions form a first reset groove and a first reset tooth at the connection point. The number of second support portions is connected end to end along the circumference of the outer shell. Adjacent second support portions form a second reset groove and a second reset tooth at the connection point.

[0013] Optionally, the housing assembly further includes an inner housing, which is fixed within the adjusting bracket, and the power assembly is fixed within the inner housing. The inner housing forms a material channel connecting the outlet and the inlet.

[0014] Optionally, the electric grinder further includes a control board, which is fixed to the outer wall of the inner housing. The control board is provided with a switch button, the adjustment bracket is provided with a clearance groove corresponding to the position of the switch button, and the outer housing is provided with a through hole corresponding to the position of the switch button so that the switch button can be exposed in the outer housing.

[0015] In the technical solution of this utility model, the second inclined surface of the adjustment knob abuts against the first inclined surface of the connecting component. By rotating the adjustment knob, the second inclined surface slides relative to the first inclined surface, so as to convert the rotational movement of the adjustment knob into the axial movement of the connecting component along the housing component, thereby driving the movement of the outer grinding head connected to the connecting component, thereby adjusting the gap between the outer grinding head and the inner grinding head support (i.e., adjusting the gear of the electric grinder), which makes it easier for the user to adjust the gear. Moreover, the adjustment knob and the outer grinding head are located at opposite ends of the connecting component, that is, the distance between the adjustment knob and the outer grinding head is the length of one connecting component, so that the user's hand will not touch the discharge port during the gear adjustment process, thus avoiding soiling the user's hands and the discharge port. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an electric grinder provided by this utility model;

[0017] Figure 2 yes Figure 1 Exploded view of a medium-sized electric grinder;

[0018] Figure 3 yes Figure 1 Cross-sectional view of a medium-sized electric grinder;

[0019] Figure 4 yes Figure 2 Schematic diagram of the structure of the adjustment bracket;

[0020] Figure 5 yes Figure 2 A schematic diagram of the adjustment knob. Detailed Implementation

[0021] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] like Figures 1-5As shown, this utility model embodiment provides an electric grinder 100, which includes a housing assembly 10, a power assembly 20, an inner grinding head 30, an outer grinding head 40, a connecting assembly 50, and an adjusting knob 60. The power assembly 20 is disposed inside the housing assembly 10. The inner grinding head 30 is disposed inside the housing assembly 10 and is connected to the power assembly 20 in a transmission manner. The outer grinding head 40 is disposed inside the housing assembly 10, and a gap is formed between the outer grinding head 40 and the inner grinding head 30. The connecting assembly 50 is disposed inside the housing assembly 10 and is configured to slide along the axial direction of the housing assembly 10, but cannot rotate relative to the housing assembly 10. One end of the connecting assembly 50 is connected to the outer grinding head 40, and the other end of the connecting assembly 50 is provided with a first inclined surface 513. The adjusting knob 60 is rotatably connected to the housing assembly 10, and the end of the adjusting knob 60 facing the connecting assembly 50 is provided with a second inclined surface 611, which abuts against the first inclined surface 513.

[0023] In this embodiment, the outer grinding head 40 is fixed relative to the housing assembly 10, the power assembly 20 is fixed inside the housing assembly 10, and the inner grinding head 30 is driven to rotate by the power assembly 20, that is, the inner grinding head 30 rotates relative to the housing assembly 10. The electric grinder 100 grinds the material (such as pepper) that enters the gap between the inner grinding head 30 and the outer grinding head 40 into finer particles by rotating the inner grinding head 30 relative to the outer grinding head 40. The housing assembly 10 has a discharge port 111 and a feed port 131, as well as a material channel 153 connecting the discharge port 111 and the feed port 131. The inner grinding head 30 and the outer grinding head 40 are located at the discharge port 111, and the gap between the inner grinding head 30 and the outer grinding head 40 is connected to the discharge port 111. The grinding process of the electric grinder 100 is as follows: the material enters the material channel 153 of the housing assembly 10 from the feed port 131, and is ground into fine particles when passing through the gap between the inner grinding head 30 and the outer grinding head 40. The fine particles are discharged from the electric grinder 100 through the discharge port 111.

[0024] In this embodiment, the second inclined surface 611 of the adjusting knob 60 abuts against the first inclined surface 513 of the connecting assembly 50. By rotating the adjusting knob 60, the second inclined surface 611 slides relative to the first inclined surface 513, so as to convert the rotational movement of the adjusting knob 60 into the axial movement of the connecting assembly 50 along the housing assembly 10, thereby driving the outer grinding head 40 connected to the connecting assembly 50 to move, thereby adjusting the gap between the outer grinding head 40 and the inner grinding head 30 support (i.e., adjusting the gear of the electric grinder 100), which makes it easier for the user to adjust the gear. Moreover, the adjusting knob 60 and the outer grinding head 40 are respectively at opposite ends of the connecting assembly 50, that is, the distance between the adjusting knob 60 and the outer grinding head 40 is the length of the connecting assembly 50, so that the user's hand will not touch the discharge port 111 during the gear adjustment process, avoiding soiling the user's hands and the discharge port 111.

[0025] like Figures 1-3As shown, in one embodiment, the housing assembly 10 includes a top cover 11, an outer shell 12, a bottom cover 13, and a material cup 14. The top cover 11 has a discharge port 111. One end of the outer shell 12 is connected to the top cover 11, and the connecting assembly 50 is disposed inside the outer shell 12. The other end of the outer shell 12 is rotatably connected to the adjusting knob 60. The bottom cover 13 is rotatably connected to the end of the adjusting knob 60 opposite to the outer shell 12, and the bottom cover 13 has a material inlet 131. The material cup 14 is detachably connected to the bottom cover 13, and the material cup 14 communicates with the material inlet 131.

[0026] In this embodiment, the outer shell 12 is a hollow shell extending through both ends. The outer shell 12 extends axially along the shell assembly 10. One end of the outer shell 12 is connected to the discharge port 111 of the top cover 11, and the other end of the outer shell 12 is connected to the inlet port 131 of the bottom cover 13. The adjusting knob 60 is arranged in a ring shape and is rotatably fitted onto the outer periphery of the bottom cover 13.

[0027] In this embodiment, the material cup 14 has a cavity for containing materials. The cavity is connected to the inlet 131. When the electric grinder 100 is needed, the electric grinder 100 is inverted. At this time, the cavity faces downward, and the material in the cavity falls into the inlet 131 under the action of gravity for grinding.

[0028] In this embodiment, the connection sequence of the housing assembly 10 and the adjustment knob 60 is as follows: top cover 11, outer shell 12, adjustment knob 60, bottom cover 13, and material cup 14. The outer shell 12 and the material cup 14 have similar lengths in the axial direction of the housing assembly 10. Therefore, the adjustment knob 60 is located in the middle of the electric grinder 100, which makes it convenient for the user to adjust the speed of the electric grinder 100 during use.

[0029] like Figures 2-4 As shown, in one embodiment, the connecting assembly 50 includes an adjusting bracket 51 and a fixing cover 52. The adjusting bracket 51 is slidably connected to the outer shell 12 and extends axially along the outer shell 12. The fixing cover 52 is connected to the adjusting bracket 51 at one end facing the top cover 11, and the outer grinding head 40 is fixed to the fixing cover 52.

[0030] In this embodiment, the adjusting bracket 51 includes a top plate and a side plate. The side plate is arranged in a ring shape and extends along the axial direction of the housing assembly 10. The top plate is arranged in a ring shape and is connected to the end of the side plate facing the top cover 11. The fixing cover 52 is fixedly installed on the top plate.

[0031] like Figure 2 and Figure 4As shown, in one embodiment, the inner sidewall of the outer casing 12 has a protrusion forming a retaining strip extending axially along the outer casing 12, and the outer sidewall of the adjusting bracket 51 has a retaining groove 511 extending axially along the outer casing 12. The retaining strip can be slidably connected to the retaining groove 511 along the axial direction of the outer casing 12.

[0032] In this embodiment, the locking strip (not shown in the figure) is at least partially locked in the locking groove 511 to lock the rotational freedom of the adjusting bracket 51 in the circumferential direction of the outer shell 12, preventing the adjusting bracket 51 from rotating relative to the outer shell 12. At the same time, the locking groove 511 is gradually tapered in the direction from the bottom cover 13 to the top cover 11, and the locking strip is also gradually tapered in the direction from the bottom cover 13 to the top cover 11. Therefore, the locking strip can slide relative to the locking groove 511 in the axial direction of the housing assembly 10, so that the adjusting bracket 51 can slide along the axial direction of the outer shell.

[0033] like Figures 2-4 As shown, in one embodiment, the periphery of the end of the adjusting bracket 51 opposite to the fixed cover 52 extends along the axial direction of the outer shell 12 to form a first support portion 512. The length of the first support portion 512 in the axial direction of the outer shell 12 gradually increases or decreases along the circumferential direction of the outer shell 12, so as to form the first inclined surface 513 at the end of the first support portion 512 opposite to the fixed cover 52.

[0034] In this embodiment, the first support portion 512 is arranged in an arc shape or a ring shape at one end of the adjusting bracket 51 facing the bottom cover 13. The first support portion 512 unfolds into a triangle or trapezoid, which can be regarded as the first support portion 512 having a minimum length end and a maximum length end. When the first support portion 512 is arc-shaped, the minimum length end and the maximum length end of the same first support portion 512 are connected. When the first support portion 512 is ring-shaped, the minimum length end and the maximum length end of the same first support portion 512 are connected.

[0035] like Figure 2 , Figure 3 and Figure 5 As shown, in one embodiment, the peripheral edge of the adjustment knob 60 facing the outer casing 12 extends along the axial direction of the outer casing 12 to form a second support portion 61. The length of the second support portion 61 in the axial direction of the outer casing 12 gradually decreases or increases along the circumferential direction of the outer casing 12, so as to form a second inclined surface 611 at the end of the second support portion 61 facing the outer casing 12.

[0036] In this embodiment, the second support portion 61 is arranged in an arc shape or a ring shape at one end of the adjustment knob 60 facing the top cover 11. The second support portion 61 unfolds into a triangle or trapezoid, which can be regarded as the second support portion 61 having a minimum length end and a maximum length end. When the second support portion 61 is arc-shaped, the minimum length end and the maximum length end of the same second support portion 61 are connected. When the second support portion 61 is ring-shaped, the minimum length end and the maximum length end of the same second support portion 61 are connected.

[0037] In this embodiment, the first support portion 512 and the second support portion 61 have the same shape but are centrally symmetrically arranged, that is, the minimum length end of the first support portion 512 corresponds to the maximum length end of the second support portion 61, and the maximum length end of the first support portion 512 corresponds to the minimum length end of the second support portion 61. When the adjustment knob 60 is rotated to bring the maximum length end of the first support portion 512 and the maximum length end of the second support portion 61 closer together, the gap between the outer grinding head 40 and the inner grinding head 30 increases.

[0038] like Figure 2 As shown, in one embodiment, the adjusting bracket 51 has an elastic element 70 at one end away from the first inclined surface 513, and the other end of the elastic element 70 is connected to the inner wall of the outer shell 12.

[0039] In this embodiment, the elastic element 70 is a spring, which is located between the adjusting bracket 51 and the outer shell 12. It provides elastic force to make the adjusting bracket 51 and the adjusting knob 60 fit tightly together, so that the first inclined surface 513 and the second inclined surface 611 keep in contact, so that the adjusting bracket 51 and the adjusting knob 60 maintain a tight transmission connection.

[0040] like Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the number of first support portions 512 and second support portions 61 is the same and there are multiple first support portions 512 connected end to end along the circumference of the outer shell 12. Adjacent first support portions 512 form a first reset groove 515 and a first reset tooth 514 at the connection point. The number of second support portions 61 is connected end to end along the circumference of the outer shell 12. Adjacent second support portions 61 form a second reset groove 613 and a second reset tooth 612 at the connection point.

[0041] In this embodiment, when the adjustment knob 60 is rotated to make the first inclined surface 513 and the second inclined surface 611 slide relative to each other, the first reset tooth 514 of the first support part 512 and the second reset tooth 612 of the second support part 61 approach each other. At this time, the adjustment bracket 51 gradually moves away from the adjustment knob 60. Continue to rotate the adjustment knob 60 until the reset tooth of the first support part 512 slides into the second reset groove 613 of the second support part 61 under the elastic force of the elastic member 70. At this time, the second reset tooth 612 of the second support part 61 also slides into the first reset groove 515 of the first support part 512, and the adjustment bracket 51 returns to the starting position.

[0042] like Figures 1-3 As shown, in one embodiment, the housing assembly 10 further includes an inner housing 15, which is fixed within the adjusting bracket 51. The power assembly 20 is fixed within the inner housing 15, and the inner housing 15 forms a material channel 153 that connects the outlet 111 and the inlet 131.

[0043] In this embodiment, the power assembly 20 includes a motor 21 and a gearbox 22. The gearbox 22 is provided with a connecting shaft 23. The drive shaft of the motor 21 is connected to the gearbox 22 for transmission. The connecting shaft 23 of the gearbox 22 is fixedly connected to the inner grinding head 30 to transmit the power of the drive shaft of the motor 21 to the inner grinding head 30. The inner housing 15 includes a rear inner housing cover 152 and a front inner housing cover 151 connected to each other. An installation cavity is formed between the rear inner housing cover 152 and the front inner housing cover 151. The motor 21 and the gearbox 22 are installed in the installation cavity. The connecting shaft 23 extends out of the installation cavity. The rear inner housing cover 152 forms a material channel 153. The material channel 153 is not interconnected with the installation cavity to prevent material from entering the installation cavity.

[0044] like Figures 1-3 As shown, in one embodiment, the electric grinder 100 further includes a control board 80, which is fixed to the outer wall of the inner housing 15. The control board 80 is provided with a switch button 90. The adjustment bracket 51 is provided with a clearance groove 516 corresponding to the position of the switch button 90. The outer housing 12 is provided with a through hole 121 corresponding to the position of the switch button 90 so that the switch button 90 can be exposed in the outer housing 12.

[0045] In this embodiment, the control board 80 is a PCB board, fixed to the side of the inner shell front cover 151 opposite to the inner shell rear cover 152. The switch button 90 is used to control the start and stop of the electric grinder 100. It is understood that the adjustment bracket 51 is located outside the inner shell 15 and the control board 80, and the adjustment bracket 51 can move axially along the shell assembly 10. Therefore, a clearance groove 516 is provided on the adjustment bracket 51 to prevent the adjustment bracket 51 from colliding with the switch button 90 on the control board 80 during movement.

[0046] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An electric grinder, characterized in that, include: Housing assembly; The power unit is located within the housing assembly; An internal grinding head is disposed inside the housing assembly, and the internal grinding head is connected to the power assembly for transmission. An outer grinding head is disposed within the housing assembly, and a gap is formed between the outer grinding head and the inner grinding head; A connecting assembly, disposed within the housing assembly, is configured to slide axially along the housing assembly but not rotate relative to it. One end of the connecting assembly is connected to the external grinding head, and the other end of the connecting assembly has a first inclined surface. An adjustment knob is rotatably connected to the housing assembly. The end of the adjustment knob facing the connection assembly has a second inclined surface, which abuts against the first inclined surface.

2. The electric grinder according to claim 1, characterized in that, The housing assembly includes: The top cover is equipped with a discharge port; The outer shell has one end connected to the top cover, the connecting component is located inside the outer shell, and the other end of the outer shell is rotatably connected to the adjustment knob; The bottom cover is rotatably connected to the end of the adjustment knob opposite to the outer casing, and the bottom cover is provided with a feed inlet; and, The material cup is detachably connected to the bottom cover, and the material cup is connected to the inlet.

3. The electric grinder according to claim 2, characterized in that, The connecting assembly includes an adjusting bracket and a fixing cover. The adjusting bracket is slidably connected to the housing and extends along the axial direction of the housing. The fixing cover is connected to the adjusting bracket at one end facing the top cover, and the outer grinding head is fixed to the fixing cover.

4. The electric grinder according to claim 3, characterized in that, The inner sidewall of the outer casing has a protrusion forming a retaining strip extending along the axial direction of the outer casing, and the outer sidewall of the adjusting bracket has a retaining groove extending along the axial direction of the outer casing. The retaining strip can be slidably connected to the retaining groove along the axial direction of the outer casing.

5. The electric grinder according to claim 3, characterized in that, The peripheral edge of the adjusting bracket at the end opposite to the fixed cover extends along the axial direction of the outer shell to form a first support portion. The length of the first support portion in the axial direction of the outer shell gradually increases or decreases along the circumferential direction of the outer shell, so as to form the first inclined surface at the end of the first support portion opposite to the fixed cover.

6. The electric grinder according to claim 5, characterized in that, The peripheral edge of the adjustment knob facing the outer casing extends along the axial direction of the outer casing to form a second support portion. The length of the second support portion in the axial direction of the outer casing gradually decreases or increases along the circumferential direction of the outer casing, so as to form a second inclined surface at the end of the second support portion facing the outer casing.

7. The electric grinder according to claim 6, characterized in that, The adjusting bracket has an elastic element at one end away from the first inclined surface, and the other end of the elastic element is connected to the inner wall of the outer shell.

8. The electric grinder according to claim 7, characterized in that, The number of first support parts and second support parts is the same and there are multiple first support parts. Multiple first support parts are connected end to end along the circumference of the outer shell. Adjacent first support parts form a first reset groove and a first reset tooth at the connection point. Multiple second support parts are connected end to end along the circumference of the outer shell. Adjacent second support parts form a second reset groove and a second reset tooth at the connection point.

9. The electric grinder according to claim 3, characterized in that, The housing assembly also includes an inner housing, which is fixed inside the adjusting bracket. The power assembly is fixed inside the inner housing, and the inner housing forms a material channel connecting the outlet and the inlet.

10. The electric grinder according to claim 9, characterized in that, The electric grinder also includes a control board, which is fixed to the outer wall of the inner shell. The control board is provided with a switch button. The adjustment bracket is provided with a clearance groove corresponding to the position of the switch button. The outer shell is provided with a through hole corresponding to the position of the switch button so that the switch button can be exposed in the outer shell.

Images