Coffee bean grinding machine with safety switch

Abstract

A coffee bean grinding machine provided with a safety switch comprises a motor, a main machine shell, a base plate, a powder outlet piece, a grinding head, an annular grinding cavity, an annular transmission base, a spring, a stock bin, a button, an ejector rod, a reset spring and a microswitch, the main machine shell is fixed to the base plate, and the button is in sliding fit with a button hole; the annular transmission seat is fixed to the top of the annular grinding cavity, the spring is arranged in the lower spring blind hole, and the axial guide block is in sliding fit with the axial guide groove and matched with the spring; the ejector rod penetrates through the rod hole and a spring to be matched with the axial guide block, the reset spring is arranged in the lower spring counter bore and matched with the button, and the button is matched with the microswitch. And the internal thread driving cavity is screwed with the external thread part and drives the annular transmission seat and the ejector rod. The stock bin is rotated, the stock bin drives the ejector rod, the ejector rod drives the microswitch through the button, and the microswitch serves as a power switch or a signal switch; and the control device is operated and then works to realize safety protection.

Description

Technical Field

[0001] The utility model relates to the technical field of powder grinding, and 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 surface of the lower shell, the lower surface of the lower shell is fixedly connected to 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 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: there is no safety protection. Utility Model Content

[0003] The purpose of the utility model is to provide a coffee bean grinder with a safety switch, which can only work when the material bin is rotated, thereby realizing safety protection.

[0004] The utility model is realized as follows: a coffee bean grinder with a safety switch is provided, which is special in that it includes a motor, a main housing, a base plate, a powder outlet, a grinding head, an annular grinding chamber, an annular transmission seat, a spring, a hopper, a button, a push rod, a reset spring and a micro switch.

[0005] The main housing includes an upper-opening grinding head cavity, an external threaded portion, an axial guide groove, a powder outlet hole and a pivot hole. The bottom plate of the axial guide groove is provided with an upper-opening lower spring blind hole. The main housing at the lower spring blind hole is provided with a rod hole and a lower spring countersunk hole.

[0006] There is a button hole on the base plate.

[0007] The annular transmission seat includes an axial guide block;

[0008] An internal thread drive cavity is provided at the bottom of the silo;

[0009] The main casing is fixed on the base plate, the motor shaft passes through the base plate and the pivot hole and is fixed to the powder outlet and the grinding head, and the button slides in conjunction with the button hole; the annular transmission seat is fixed to the top of the annular grinding chamber, the spring is arranged in the lower spring blind hole, the axial guide block slides in conjunction with the axial guide groove and cooperates with the spring; the push rod passes through the rod hole and a spring and cooperates with the axial guide block, the reset spring is arranged in the lower spring countersunk hole, the reset spring cooperates with the button, and the button cooperates with the micro switch; the internal thread drive cavity is screwed with the external thread part and drives the annular transmission seat and the push rod.

[0010] The coffee bean grinder with a safety switch is special in that the button includes a head and a rod.

[0011] The button hole includes a head countersunk hole and a rod hole portion;

[0012] The head is slidably matched with the head countersunk hole and the reset spring, and the rod body is slidably matched with the rod hole and the micro switch.

[0013] The coffee bean grinder with a safety switch is special in that it also includes a drive ring.

[0014] The driving ring is arranged on the annular transmission seat, and the internal thread driving cavity is matched with the driving ring.

[0015] The coffee bean grinder with a safety switch is special in that a circular spring plate is provided at the end of the push rod.

[0016] The circular spring plate slides in the lower spring counterbore and cooperates with the return spring.

[0017] The utility model discloses a coffee bean grinder with a safety switch. The material bin is rotated to drive a push rod. The push rod drives a micro switch through a button. The micro switch is used as a power switch or a signal switch. The control device is operated and then works to achieve safety protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the present utility model.

[0019] Figure 2 yes Figure 1 A partial enlarged view of .

[0020] Figure 3 It is a three-dimensional diagram of the present utility model.

[0021] Figure 4 This is one of the three-dimensional exploded views of the present invention.

[0022] Figure 5 This is the second three-dimensional exploded view of the utility model DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] like Figure 1 As shown, a coffee bean grinder with a safety switch includes a motor 1, a main housing 2, a base plate 3, a powder discharge part 4, a grinding head 5, an annular grinding chamber 6, an annular transmission seat 7, a spring 8, a hopper 9, a button 10, a push rod 11, a return spring 12 and a micro switch (not shown in the figure).

[0026] The main housing 2 includes an upper-opening grinding head cavity 21, an external threaded portion 22, an axial guide groove 23, a powder outlet hole 24, and a pivot hole. A lower spring blind hole 231 with an upper opening is provided on the bottom plate of the axial guide groove 23. A rod hole 232 and a lower spring countersunk hole 233 are provided on the main housing 2 at the lower spring blind hole 231. A powder outlet pipe is provided on the powder outlet hole 24.

[0027] The base plate 3 is provided with a button hole 3A.

[0028] The annular transmission seat 7 includes an axial guide block 71;

[0029] An internal thread drive cavity 91 is provided at the bottom of the silo 9;

[0030] The main housing 2 is fixed to the base plate 3, the motor shaft passes through the base plate 3 and the pivot hole and is fixed to the powder discharge piece 4 and the grinding head 5, and the button 10 slides in cooperation with the button hole 3A; the annular transmission seat 7 is fixed to the top of the annular grinding chamber 6, the spring 8 is arranged in the lower spring blind hole 231, the axial guide block 71 slides in cooperation with the axial guide groove 23 and cooperates with the upper end of the spring 8; one end of the push rod 11 passes through the rod hole 232 and a spring 8 and cooperates with the axial guide block 71, and the other end cooperates with the return spring 12, which is arranged in the lower spring countersunk hole 233. The return spring 12 cooperates with the button 10, and the button 10 cooperates with the micro switch; the internal thread drive cavity 91 is screwed with the external thread portion 22 and drives the annular transmission seat 7;

[0031] With such a structure, the hopper 9 is rotated, and the annular transmission seat 7 and the annular grinding chamber 6 move upward or downward together to achieve the fineness of the powder; at the same time, the hopper 9 and the axial guide block 71 of the annular transmission seat 7 drive the push rod 11, and the push rod drives the button 10. The button 10 acts on the microswitch, and the microswitch serves as a signal switch or a power switch; after the microswitch is turned on, the control device is operated to achieve safety protection. After use, the hopper 9 is rotated, the button and the microswitch are in contact, and the elastic force of the reset spring is less than the elastic force of the button or elastic pressure plate of the microswitch, keeping the microswitch in the disconnected state. During use, when the hopper 9 is rotated to adjust the fineness, the push rod 11 always cooperates with the axial guide block 71; after use, the hopper 9 is rotated, the hopper 9 moves upward, and the spring 8 lifts the annular transmission seat 7. Under the action of the reset spring 12, the push rod is separated from the button or elastic pressure plate of the microswitch, and the microswitch is disconnected.

[0032] The button 10 includes a head 101 and a rod body 102.

[0033] The button hole 3A includes a head countersunk hole 3A1 and a rod hole 3A2;

[0034] The head portion 101 is in sliding cooperation with the head counterbore 3A1 and cooperates with the return spring 12 , and the rod body portion 102 is in sliding cooperation with the rod hole 3A2 and cooperates with the micro switch.

[0035] The end of the push rod 11 is provided with a circular spring plate 11.

[0036] The circular spring plate 111 slides in the lower spring counterbore 233 and cooperates with the return spring 12 .

[0037] As a further improvement of the present invention: it also includes a drive ring 13,

[0038] The drive ring 13 is provided on the annular transmission seat 7 , and the internal thread drive cavity 91 cooperates with the drive ring 13 .

[0039] When the utility model is used, the base plate 3 is fixed in the casing 14 , the main casing 2 extends from the top of the casing 14 ; the powder discharge pipe extends from the side wall plate of the casing 14 ; and the motor is located in the casing 14 .

[0040] 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. A coffee bean grinder equipped with a safety switch, characterized in that: It includes motor, main housing, base plate, powder outlet, grinding head, annular grinding chamber, annular transmission seat, spring, hopper, button, ejector, reset spring and micro switch. The main housing includes an upper-opening grinding head cavity, an external threaded portion, an axial guide groove, a powder outlet hole and a pivot hole. The bottom plate of the axial guide groove is provided with an upper-opening lower spring blind hole. The main housing at the lower spring blind hole is provided with a rod hole and a lower spring countersunk hole. There is a button hole on the base plate. The annular transmission seat includes an axial guide block; An internal thread drive cavity is provided at the bottom of the silo; The main casing is fixed on the base plate, the motor shaft passes through the base plate and the pivot hole and is fixed to the powder outlet and the grinding head, and the button slides in cooperation with the button hole; the annular transmission seat is fixed to the top of the annular grinding chamber, the spring is arranged in the lower spring blind hole, the axial guide block slides in cooperation with the axial guide groove and cooperates with the spring; the push rod passes through the rod hole and a spring cooperates with the axial guide block, and the other end cooperates with the reset spring, the reset spring is arranged in the lower spring countersunk hole, the reset spring cooperates with the button, and the button cooperates with the micro switch; the internal thread drive cavity is screwed with the external thread part and drives the annular transmission seat and the push rod.

2. The coffee bean grinder with a safety switch according to claim 1, characterized in that: The button includes a head and a rod body. The button hole includes a head countersunk hole and a rod hole portion; The head is slidably matched with the head countersunk hole and the reset spring, and the rod body is slidably matched with the rod hole and the micro switch.

3. The coffee bean grinder with a safety switch according to claim 1, characterized in that: Also includes drive ring, The driving ring is arranged on the annular transmission seat, and the internal thread driving cavity is matched with the driving ring.

4. A coffee bean grinder with a safety switch according to claim 1, 2 or 3, characterized in that: The end of the push rod is provided with a circular spring plate. The circular spring plate slides in the lower spring counterbore and cooperates with the return spring.

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