Adjustable coffee bean grinding machine

Abstract

An adjustable coffee bean grinding machine comprises a base, a machine base, a motor, a main machine shell, a powder outlet piece, a grinding head, a transmission shaft, an annular grinding cavity, a cylindrical grinding base, an annular transmission base, a spring, a powder container, a stock bin and a top cover, the spring is arranged in a lower spring blind hole and extends into an axial guide groove, and the annular grinding cavity is formed in the cylindrical grinding base; the square block and the square positioning groove are embedded, and a screw penetrates through the connecting hole and is screwed with the threaded connecting hole; the cylindrical grinding seat is embedded into the grinding head cavity; the axial guide block is embedded into the axial guide groove and is matched with the upper end of the spring; the internal thread driving cavity is screwed with the external thread part, and the stock bin is matched with the annular transmission seat; the top cover is detachably matched with the stock bin; the main case is embedded into the accommodating cavity, and the annular fastening cover is screwed with the upper end of the accommodating cavity to fix the main case. An axial guide block is arranged on the annular transmission seat; an axial guide groove is formed in the main case; the annular transmission seat is effectively prevented from rotating when the stock bin rotates, the spring is protected, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding, in particular to an adjustable coffee bean grinding device. Background Art

[0002] The current existing technology, Chinese patent 202321730285.5, a coffee bean adjustable grinding device, includes a cover plate, the inner surface of the cover plate is movably mounted with an upper shell, the lower surface of the upper shell is fixedly connected to the lower shell, the lower surface of the lower shell is fixedly connected to the bottom plate, the upper surface of the bottom plate is movably mounted with a receiving container, the outer surface of the receiving container is movably mounted to the outer surface of the lower shell, and the utility model relates to the field of grinding technology. The device is provided with a rotating annular receiving plate, so that the annular receiving plate moves up and down relative to the collar. At this time, the compression spring always lifts the annular sleeve, so that the upper surface of the annular sleeve contacts the inner surface of the annular receiving plate, and the grinding disc moves with the annular sleeve, thereby changing the interval between the grinding head and the annular sleeve. The problem is that there is a hidden danger of rotation of the annular receiving plate, which causes damage to the spring. Utility Model Content

[0003] The purpose of the utility model is to provide an adjustable coffee bean grinder, which has the characteristics of long service life.

[0004] The utility model is realized as follows: an adjustable coffee bean grinder, which is special in that it includes a base, a machine base, a motor, a main housing, a powder outlet, a grinding head, a transmission shaft, an annular grinding chamber, a cylindrical grinding seat, an annular transmission seat, a spring, a powder container, a silo and a top cover.

[0005] The motor base includes a receiving cavity, a motor base plate arranged in the receiving cavity, and an annular fastening cover;

[0006] The main housing includes an upper opening grinding head cavity, an external threaded portion, an axial guide groove, a powder outlet hole, a pivot hole and a bearing cavity. A lower spring blind hole is provided on the bottom plate of the axial guide groove.

[0007] The annular grinding chamber includes a side plane and a square block arranged on the upper part of the side plane;

[0008] The cylindrical grinding seat is hollow with an upper opening, including a square positioning groove, a threaded connection hole at the end and a feed hole on the bottom plate;

[0009] The annular transmission seat includes an axial guide block and a connecting hole;

[0010] An internal thread drive cavity is provided at the bottom of the silo;

[0011] The machine base is arranged on the base, the powder container and the machine base are detachable and matched, the motor is fixed to the motor base plate, and the motor shaft is rotatably matched with the shaft hole on the motor base plate; the transmission shaft is pivotally connected to the bearing cavity through the bearing, and the transmission shaft is rotatably matched with the pivot hole; the grinding head and the powder discharge part are arranged on the transmission shaft, and the powder discharge part and the bottom plate of the grinding head cavity are gap matched; the spring is arranged in the lower spring blind hole and extends into the axial guide groove, the annular grinding cavity is arranged in the cylindrical grinding seat, the square block and the square positioning groove are embedded, and the screw passes through the connecting hole and is screwed into the threaded connecting hole; the cylindrical grinding seat is embedded in the grinding head cavity, the axial guide block is embedded in the axial guide groove and matches with the upper end of the spring; the internal thread drive cavity is screwed with the external thread part, and the hopper is matched with the annular transmission seat; the top cover and the hopper are detachable and matched; the main casing is embedded in the accommodating cavity, and the annular fastening cover is screwed with the upper end of the accommodating cavity to fix the main casing.

[0012] The adjustable coffee bean grinder is special in that the base comprises a horizontal seat plate and a simple seat;

[0013] The machine base is fixed to the cylindrical base and forms an acute angle with the horizontal base plate; the powder container is perpendicular to the horizontal base plate.

[0014] The adjustable coffee bean grinder is special in that the powder discharging part includes a circular base plate, an axial hole provided on the circular base plate, a cavity with a lower opening, and an arc-shaped material discharging plate distributed around the circular base plate.

[0015] A sleeve surrounding the pivot hole is provided on the bottom plate of the main housing. The sleeve extends into the cavity and is slidably matched with the inner wall.

[0016] The adjustable coffee bean grinder is special in that it also includes a drive ring.

[0017] The upper end of the annular transmission seat is provided with a countersink, the driving ring is engaged with the countersink, and the lower end of the inner ring wall plate of the internal thread driving cavity is matched with the upper end of the driving ring.

[0018] The adjustable coffee bean grinder is characterized in that the inner diameter of the drive ring is smaller than the diameter of the annular transmission seat;

[0019] The silo includes a circular cavity, an inverted truncated cone and a lower circular outlet arranged above and below.

[0020] The diameter of the lower circular outlet is the same as the inner diameter of the drive ring.

[0021] The adjustable coffee bean grinder is special in that: an annular support plate and an axial positioning protrusion are provided in the accommodating cavity;

[0022] The motor base plate is provided with an axial positioning groove.

[0023] The annular support plate supports the motor base plate, and the axial positioning protrusion and the axial positioning groove are engaged.

[0024] The adjustable coffee bean grinder is special in that it further comprises a container frame connected to the machine base, the container frame comprising a support rod and a U-shaped frame, and the U-shaped frame is provided with a U-shaped support plate;

[0025] The powder container is provided with an annular seat plate.

[0026] The powder container is inserted into the U-shaped seat frame, and the U-shaped support plate supports the annular seat plate.

[0027] The utility model discloses an adjustable coffee bean grinder. The axial guide block is arranged on the annular transmission seat, and the axial guide groove is arranged on the main casing. The annular transmission seat is effectively prevented from rotating when the hopper rotates, thereby protecting the spring and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is the main view of the present utility model.

[0029] Figure 2 It is a three-dimensional diagram of the present utility model.

[0030] Figure 3 It is a three-dimensional exploded view of the present utility model.

[0031] Figure 4 It is a partial cross-sectional view of the utility model.

[0032] Figure 5 yes Figure 4 A-A view of.

[0033] Figure 6 This is one of the partial three-dimensional exploded views of the present utility model.

[0034] Figure 7 This is the second partial three-dimensional exploded view of the utility model. DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0037] like Figure 1 As shown, an adjustable coffee bean grinder includes a base 1, a machine base 2, a motor 3, a main housing 4, a powder outlet 5, a grinding head 6, a transmission shaft 7, an annular grinding chamber 8, a cylindrical grinding seat 9, an annular transmission seat 10, a spring 11, a powder container 12, a hopper 13 and a top cover 14.

[0038] The base 2 includes a receiving chamber 21 with upper and lower openings, a motor base plate 22 disposed in the receiving chamber 21, and an annular fastening cover 23; a discharge pipe 24 is disposed on the receiving chamber 21;

[0039] The main housing 4 includes an upper-opening grinding head cavity, an external threaded portion 41, an axial guide groove 42, a powder outlet hole 43, a pivot hole 44 and a bearing cavity 45. A lower spring blind hole 421 is provided on the bottom plate of the axial guide groove 42.

[0040] The annular grinding chamber 8 includes a side plane and a square block 81 provided on the upper portion of the side plane;

[0041] The cylindrical grinding seat 9 is hollow with an upper opening, including a square positioning groove 91, a threaded connection hole 92 provided at the end and a feed hole 93 provided on the bottom plate;

[0042] The annular transmission seat 10 includes axial guide blocks 101 and connecting holes 102 evenly distributed around the annular transmission seat 10;

[0043] An internal thread drive cavity 131 is provided at the bottom of the silo 13;

[0044] The machine base 2 is arranged on the base 1, the powder container 12 is detachably matched with the machine base 2, and the discharge pipe 24 is opposite to the upper opening of the powder container 12; the motor 3 is fixed to the motor base plate 22, and the motor shaft is rotatably matched with the shaft hole on the motor base plate 22; the transmission shaft 7 is pivotally connected to the bearing cavity 45 through the bearing 71, and the transmission shaft 7 is rotatably matched with the pivot hole 44; the grinding head 6 and the powder discharge piece 5 are arranged on the transmission shaft 7 from top to bottom, and the powder discharge piece 5 is clearance-matched with the bottom plate of the grinding head cavity; the spring 11 is arranged in the lower spring blind hole 421 and extends into the axial guide groove 42, and the annular grinding chamber 8 is arranged in the cylindrical grinding seat 9. The square block 81 is engaged with the square positioning groove 91, and the screw passes through the connecting hole 102 and is screwed into the threaded connecting hole 92; the cylindrical grinding seat 9 is embedded in the grinding head cavity, the axial guide block 101 is engaged with the axial guide groove 42 and cooperates with the upper end of the spring 11; the internal thread drive cavity 131 is screwed with the external thread portion 41, and the hopper 13 is matched with the annular transmission seat 10; the top cover 14 is detachably matched with the hopper 13; the main housing 4 is embedded in the accommodating cavity 21, and the annular fastening cover 23 is screwed with the upper end of the accommodating cavity 21 to fix the main housing 4; the main housing 4 is fixed to the motor base plate 22, and the transmission shaft 7 is fixed to the motor shaft;

[0045] With such a structure, the hopper 13 moves up and down, and due to the action of the spring 11, the annular grinding chamber 8, the cylindrical grinding seat 9 and the annular transmission seat 10 move up or down together to adjust the gap between the grinding head 6 and the annular grinding chamber 8.

[0046] As a further improvement of the present invention: the base 1 includes a horizontal seat plate 1A and a simple seat 1B;

[0047] The machine base 2 is fixed to the cylindrical base 1B and forms an acute angle α with the horizontal base plate 1A. The powder container 12 is perpendicular to the horizontal base plate 1A. With this structure, powder within the main housing 4 is rapidly discharged through the discharge pipe 24 into the powder container 12 by the powder discharge member, leaving no residue within the main housing 4.

[0048] As a further improvement of the present invention: the powder discharging member 5 comprises a circular base plate 51, an axial hole provided on the circular base plate, a cavity 52 with a lower opening, and an arc-shaped material stripping plate 53 distributed around the circular base plate.

[0049] The bottom plate of the main housing 4 is provided with a sleeve 441 surrounding the pivot hole 44, and the sleeve 441 extends into the cavity 52 and has a relative rotation fit. With such a design, powder can be prevented from entering the pivot hole 44.

[0050] As a further improvement of the present invention: it also includes a drive ring 15,

[0051] The upper end of the annular transmission seat 10 is provided with a countersunk hole, and the driving ring 15 is engaged with the countersunk hole. The lower end of the inner ring wall plate of the internal thread driving cavity 131 is matched with the upper end of the driving ring 15.

[0052] The inner diameter of the drive ring 15 is smaller than the inner diameter of the annular transmission seat 10;

[0053] The silo 13 includes a circular cavity 132, an inverted truncated cone 133 and a lower circular outlet 134.

[0054] The diameter of the lower circular outlet 134 is the same as the inner diameter of the drive ring 15 .

[0055] As a further improvement of the present invention: an annular support plate (not shown in the figure) and an axial positioning protrusion 211 are provided in the accommodating cavity 21;

[0056] The motor base plate 22 is provided with an axial positioning groove 221.

[0057] The annular support plate supports the motor base plate 22 , and the axial positioning protrusion 211 and the axial positioning groove 221 are engaged with each other.

[0058] The container frame 16 is connected to the machine base, and the container frame 16 includes a support rod 161 and a U-shaped frame 162. The U-shaped frame 162 is provided with a U-shaped support plate 1621;

[0059] The powder container 12 is provided with an annular seat plate 121.

[0060] The powder container 12 is inserted into the U-shaped seat frame 162 , and the U-shaped support plate 1621 supports the annular seat plate 121 .

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An adjustable coffee bean grinder, characterized by: It includes a base, a machine base, a motor, a main casing, a powder outlet, a grinding head, a transmission shaft, an annular grinding chamber, a cylindrical grinding seat, an annular transmission seat, a spring, a powder container, a silo and a top cover. The motor base includes a receiving cavity, a motor base plate arranged in the receiving cavity, and an annular fastening cover; The main housing includes an upper opening grinding head cavity, an external threaded portion, an axial guide groove, a powder outlet hole, a pivot hole and a bearing cavity. A lower spring blind hole is provided on the bottom plate of the axial guide groove. The annular grinding chamber includes a side plane and a square block arranged on the upper part of the side plane; The cylindrical grinding seat is hollow with an upper opening, including a square positioning groove, a threaded connection hole at the end and a feed hole on the bottom plate; The annular transmission seat includes an axial guide block and a connecting hole; An internal thread drive cavity is provided at the bottom of the silo; The machine base is arranged on the base, the powder container and the machine base are detachable and matched, the motor is fixed to the motor base plate, and the motor shaft is rotatably matched with the shaft hole on the motor base plate; the transmission shaft is pivotally connected to the bearing cavity through the bearing, and the transmission shaft is rotatably matched with the pivot hole; the grinding head and the powder discharge part are arranged on the transmission shaft, and the powder discharge part and the bottom plate of the grinding head cavity are gap matched; the spring is arranged in the lower spring blind hole and extends into the axial guide groove, the annular grinding cavity is arranged in the cylindrical grinding seat, the square block and the square positioning groove are embedded, and the screw passes through the connecting hole and is screwed into the threaded connecting hole; the cylindrical grinding seat is embedded in the grinding head cavity, the axial guide block is embedded in the axial guide groove and matches with the upper end of the spring; the internal thread drive cavity is screwed with the external thread part, and the hopper is matched with the annular transmission seat; the top cover and the hopper are detachable and matched; the main casing is embedded in the accommodating cavity, and the annular fastening cover is screwed with the upper end of the accommodating cavity to fix the main casing.

2. The adjustable coffee bean grinder according to claim 1, characterized in that: The base comprises a horizontal seat plate and a simple seat; The machine base is fixed to the cylindrical base and forms an acute angle with the horizontal base plate; the powder container is perpendicular to the horizontal base plate.

3. The adjustable coffee bean grinder according to claim 1, characterized in that: The powder discharging member includes a circular base plate, an axial hole provided on the circular base plate, a cavity with a lower opening, and an arc-shaped material stripping plate distributed around the circular base plate. A sleeve surrounding the pivot hole is provided on the bottom plate of the main housing, and the sleeve extends into the cavity.

4. The adjustable coffee bean grinder according to claim 1, characterized in that: Also includes drive ring, The upper end of the annular transmission seat is provided with a countersink, the driving ring is engaged with the countersink, and the lower end of the inner ring wall plate of the internal thread driving cavity is matched with the upper end of the driving ring.

5. The adjustable coffee bean grinder according to claim 4, characterized in that: The inner diameter of the driving ring is smaller than the inner diameter of the annular transmission seat; The silo includes a circular cavity, an inverted truncated cone and a lower circular outlet arranged above and below. The diameter of the lower circular outlet is the same as the inner diameter of the drive ring.

6. The adjustable coffee bean grinder according to claim 1, characterized in that: An annular support plate and an axial positioning protrusion are provided in the accommodating cavity; The motor base plate is provided with an axial positioning groove. The annular support plate supports the motor base plate, and the axial positioning protrusion and the axial positioning groove are engaged.

7. The adjustable coffee bean grinder according to claim 1, characterized in that: It also includes a container frame connected to the machine base, the container frame includes a support rod and a U-shaped seat frame, and the U-shaped seat frame is provided with a U-shaped support plate; The powder container is provided with an annular seat plate. The powder container is inserted into the U-shaped seat frame, and the U-shaped support plate supports the annular seat plate.

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