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, an annular grinding cavity, an annular transmission base, a spring, a powder containing container, a stock bin and a top cover, the main machine shell is fixed to the top of the machine base, the motor is arranged in the machine base, and a motor shaft and a pivoting hole rotate and are in sealing fit; the grinding head and the powder outlet piece are fixed to a motor shaft, the powder outlet piece is in sliding fit with a bottom plate of the grinding head cavity, the powder outlet piece is opposite to the powder outlet hole, and the grinding head is arranged on the powder outlet piece; the annular transmission seat and the annular grinding cavity are fixed together and arranged in the grinding head cavity, the axial guide block is in sliding fit with the axial guide groove, and the spring is matched with the upper spring blind hole and the lower spring blind hole; the internal thread driving cavity is screwed with the external thread part, and the internal thread driving cavity drives the annular transmission seat; and the top cover is detachably matched with the stock bin. Guide holes and guide counter bores are formed in the annular transmission seat; guide rods are arranged; 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 powder grinding, in particular to an adjustable coffee bean grinder. Background Art

[0002] The current prior art, Chinese patent 202321730285.5, a coffee bean adjustable grinding equipment, including 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 with a lower shell, the lower surface of the lower shell is fixedly connected with a 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 with the outer surface of the lower shell, and the utility model relates to the field of grinding technology. The equipment is provided with a rotating annular receiving plate, so that the annular receiving plate moves up and down relative to the sleeve ring. 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 spring damage. Utility Model Content

[0003] The purpose of the utility model is to provide an adjustable coffee bean grinder, which has the characteristic 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, an annular grinding chamber, an annular transmission seat, a spring, a powder container, a silo and a top cover.

[0005] A shaft hole is provided on the top plate of the machine base;

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

[0007] The annular transmission seat includes an axial guide block and an upper spring blind hole; an internal thread drive cavity is provided at the bottom of the silo;

[0008] The machine base is arranged on the base, the powder container and the base are detachable and matched, the main casing is fixed on the top of the machine base, the motor is arranged in the machine base and the motor shaft and the pivot hole rotate and seal; the grinding head and the powder outlet are fixed to the motor shaft, the powder outlet is slidably matched with the bottom plate of the grinding head cavity, the powder outlet is opposite to the powder outlet hole, and the grinding head is arranged on the upper part of the powder outlet; the annular transmission seat and the annular grinding cavity are fixed together and arranged in the grinding head cavity, the axial guide block and the axial guide groove are slidably matched, the spring is matched with the upper spring blind hole and the lower spring blind hole; the internal thread drive cavity is screwed with the external thread part, and the internal thread drive cavity drives the annular transmission seat; the top cover and the silo are detachably matched.

[0009] The adjustable coffee bean grinder is special in that the base is provided with an inclined support surface and a flat surface.

[0010] The inclined supporting surface portion and the supporting base, the base, the main housing and the top axis have an included angle less than 90 degrees with the horizontal plane of the plane portion.

[0011] The adjustable coffee bean grinder is special in that the powder discharging part comprises a circular base plate, an axial hole arranged on the circular base plate, a cavity with a lower opening and an arc-shaped material discharging plate distributed around the circular base plate.

[0012] A sleeve surrounding the pivot hole is arranged on the bottom plate of the main housing, and the sleeve extends into the cavity and is slidably matched with the inner wall.

[0013] The adjustable coffee bean grinder is special in that: an upper bearing cavity is provided at the upper end of the pivot hole and a lower bearing cavity is provided at the lower end.

[0014] The lower end of the shaft hole of the circular seat plate of the powder outlet is provided with a shaft sleeve, and also includes a bearing;

[0015] The bearing is arranged in the upper bearing cavity and the lower sleeve cavity. The bottom plate of the main housing supports a shaft hole in the lower bearing cavity, and the sleeve presses the inner ring of the bearing in the upper bearing cavity.

[0016] The adjustable coffee bean grinder is special in that the annular grinding chamber is provided with screw holes distributed in a circular shape.

[0017] The annular transmission seat is arranged on the connecting hole and the countersunk hole;

[0018] The screw comprises a head, a plain shaft and a threaded head;

[0019] The threaded head is screwed into the screw hole, and the head and the polished rod are matched with the countersunk hole and the connecting hole respectively.

[0020] The adjustable coffee bean grinder is special in that: a fixed countersunk hole is provided on the annular transmission seat.

[0021] It also includes a driving ring, which is fixed to the fixed countersunk hole. The driving ring is sealed with the top plate of the internal thread driving cavity of the silo and is connected with the inner cavity of the silo.

[0022] The utility model discloses an adjustable coffee bean grinder. The guide holes and guide countersunk holes on the annular transmission seat and the guide rods are arranged to effectively prevent the annular transmission seat from rotating when the hopper rotates, thereby protecting the spring and prolonging the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional view of the utility model.

[0024] Figure 2 yes Figure 1 A-A view of.

[0025] Figure 3 It is a stereogram of the utility model.

[0026] Figure 4 It is one of the three-dimensional exploded views of the utility model.

[0027] Figure 5 This is the second three-dimensional exploded view of the present utility model. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] 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, an annular grinding chamber 7, an annular transmission seat 8, a spring 9, a powder container 10, a silo 11 and a top cover 12.

[0031] The base 2 is hollow with a lower opening and an axis hole is provided on the top plate;

[0032] The main housing 4 includes a grinding head cavity 41 with an upper opening, an external threaded portion 42, an axial guide groove 43, a powder outlet hole 44 and a pivot hole 45. A lower spring blind hole with an upper opening is provided on the bottom plate of the axial guide groove 43, and a discharge pipe 46 is provided at the powder outlet hole 44.

[0033] The annular transmission seat 8 includes an axial guide block 81 and an upper spring blind hole with a lower opening provided on the axial guide block; an internal thread driving cavity 111 is provided at the bottom of the silo 11;

[0034] An internal thread drive chamber 111 is provided at the bottom of the silo 11;

[0035] The machine base 2 is arranged on the base 1, and the powder container 10 is detachably matched with the base 1. The main casing 4 is fixed on the top of the machine base 2. The motor 3 is arranged in the machine base 2, and the motor shaft passes through the axial hole on the machine base 2 and rotates with the pivot hole 45 and seals; the grinding head and the powder discharge piece are fixed to the motor shaft, the powder discharge piece 5 is slidably matched with the bottom plate of the grinding head cavity 41, the powder discharge piece 5 is opposite to the powder discharge hole 44, and the grinding head 6 is arranged on the upper part of the powder discharge piece 5. The grinding head 6 and the powder discharge piece 5 rotate together with the motor shaft; the annular transmission seat 8 and the annular grinding chamber 7 are fixed together and arranged in the grinding head cavity 41, the axial guide block 81 and the axial guide groove 43 are slidably matched, and the spring 9 is matched with the upper spring blind hole and the lower spring blind hole; the internal thread drive cavity 111 is screwed with the external thread part 42, and the internal thread drive cavity 111 drives the annular transmission seat 8, and the annular transmission seat 8 and the annular grinding chamber 7 move together; the top cover 12 is detachably matched with the silo 11;

[0036] With the arrangement of the axial guide block 81 and the axial guide groove 43, when the silo 11 rotates and drives the annular transmission seat 8, the annular transmission seat moves along the axial direction, causing the spring to expand and contract up and down along the axis, effectively preventing the spring from twisting and protecting the spring.

[0037] As a further improvement of the utility model: Figure 1 , Figure 3 As shown, the base 1 is provided with an inclined supporting surface portion 1A and a flat surface portion 1B.

[0038] The inclined support surface 1A and the axis of the support base 2, the base 2, the main housing 4 and the top cover 12 have an angle α less than 90 degrees with the horizontal plane on the side of the plane portion 1B. The powder container is arranged on the plane portion 1B and is opposite to the lower end of the discharge pipe 45; the bottom plate of the grinding head chamber 41 has a rising angle β from the powder outlet side to the other side. The powder outlet part 5 rotates, and the powder on the bottom plate of the grinding head chamber 41 is quickly discharged through the powder outlet and the discharge pipe 46. After use, there is no residual powder on the bottom plate of the grinding head chamber 41.

[0039] 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 51, a cavity 52 with a lower opening, and an arc-shaped material discharging plate 53 distributed around the circular base plate.

[0040] The bottom plate of the main housing 4 is provided with a sleeve 451 surrounding the pivot hole 45, and the sleeve 451 extends into the cavity 52 and slidably fits with the inner wall. With such a structure, coffee powder is prevented from entering the pivot hole 45.

[0041] As a further improvement of the present invention: the upper end of the pivot hole 45 is provided with an upper bearing cavity, and the lower end is provided with a lower bearing cavity.

[0042] A shaft sleeve 54 is provided at the lower end of the shaft hole of the circular seat plate 51 of the powder outlet 5.

[0043] Also includes a bearing 13;

[0044] The bearing 13 is arranged in the upper bearing cavity and the lower sleeve cavity, the bottom plate of the grinding cavity 41 of the main housing 4 supports the bearing 13 in the lower bearing cavity, and the sleeve 54 presses the inner ring of the bearing 13 in the upper bearing cavity. The motor shaft, the inner ring of the bearing 13 in the upper bearing cavity and the powder outlet 5 rotate together.

[0045] As a further improvement of the present invention: the annular grinding chamber 7 is provided with screw holes 71 distributed in a circular shape.

[0046] The annular transmission seat 8 is provided at the connection hole 82 and the countersunk hole 83;

[0047] The screw comprises a head, a plain shaft and a threaded head;

[0048] The threaded head is screwed into the screw hole 71, and the head and the polished rod are matched with the countersunk hole and the connecting hole respectively.

[0049] As a further improvement of the present invention: the annular transmission seat 8 is provided with a fixed countersunk hole 84.

[0050] The drive ring 14 is also included. The drive ring 14 is fixed to the fixed counterbore 84 . The drive ring 14 is sealed against the top plate of the internal thread drive cavity 111 of the silo 11 and is communicated with the inner cavity of the silo 11 .

[0051] 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 spirit 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 in that: It includes a base, a machine base, a motor, a main housing, a powder outlet, a grinding head, an annular grinding chamber, an annular transmission seat, a spring, a powder container, a silo and a top cover. A shaft hole is provided on the top plate of the machine base; The main housing includes a grinding head cavity with an upper opening, an external threaded portion, an axial guide groove, a powder outlet hole and a pivot hole. A lower spring blind hole is provided on the bottom plate of the axial guide groove, and a discharge pipe is provided at the powder outlet hole. The annular transmission seat includes an axial guide block and an upper spring blind 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 base are detachable and matched, the main casing is fixed on the top of the machine base, the motor is arranged in the machine base and the motor shaft and the pivot hole rotate and seal; the grinding head and the powder outlet are fixed to the motor shaft, the powder outlet is slidably matched with the bottom plate of the grinding head cavity, the powder outlet is opposite to the powder outlet hole, and the grinding head is arranged on the upper part of the powder outlet; the annular transmission seat and the annular grinding cavity are fixed together and arranged in the grinding head cavity, the axial guide block and the axial guide groove are slidably matched, the spring is matched with the upper spring blind hole and the lower spring blind hole; the internal thread drive cavity is screwed with the external thread part, and the internal thread drive cavity drives the annular transmission seat; the top cover and the silo are detachably matched.

2. The adjustable coffee bean grinder according to claim 1, characterized in that: The base is provided with an inclined support surface and a flat surface. The inclined supporting surface portion and the supporting base, the base, the main housing and the top cover have an included angle less than 90 degrees with the horizontal plane of the plane portion; and the powder container is arranged on the plane portion.

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

4. The adjustable coffee bean grinder according to claim 3, characterized in that: The upper end of the pivot hole is provided with an upper bearing cavity, and the lower end is provided with a lower bearing cavity. The lower end of the shaft hole of the circular seat plate of the powder outlet is provided with a shaft sleeve, and also includes a bearing; The bearing is arranged in the upper bearing cavity and the lower sleeve cavity. The bottom plate of the main housing supports the bearing in the lower bearing cavity, and the sleeve presses the inner ring of the bearing in the upper bearing cavity.

5. An adjustable coffee bean grinder according to claim 1, 2, 3 or 4, characterized in that: The annular grinding chamber is provided with screw holes distributed in a circular shape. The annular transmission seat is provided with a connecting hole and a countersunk hole; The screw comprises a head, a plain shaft and a threaded head; The threaded head is screwed into the screw hole, and the head and the polished rod are matched with the countersunk hole and the connecting hole respectively.

6. An adjustable coffee bean grinder according to claim 1, 2, 3 or 4, characterized in that: The annular transmission seat is provided with a fixed countersunk hole. It also includes a driving ring, which is fixed to the fixed countersunk hole. The driving ring is sealed with the top plate of the internal thread driving cavity of the silo and is connected with the inner cavity of the silo.

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