Outer grinding head fixing structure applied to coffee grinder

Abstract

The utility model provides an outer grinding head fixing structure applied to a coffee grinder, which comprises a main body, a fixing ring and an outer grinding head arranged between the main body and the fixing ring, a circle of ultrasonic bonding wire is arranged at the bottom of the main body, the main body and the fixing ring are connected together through the ultrasonic bonding wire, and the outer grinding head is fixed on the main body. Compared with the prior art, the outer grinding head has the advantages that a screw fastening mode is omitted, ultrasonic welding is adopted, a circle of ultrasonic welding wire is arranged on the main body, and under the action of an ultrasonic welding machine, the ultrasonic welding wire of the main body is melted and welded with the fixing ring, so that the outer grinding head is fixed to the outer grinding head. Therefore, the effect of fixing the outer grinding head is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of coffee grinders, and in particular relates to an outer grinding head fixing structure used in coffee grinders. Background Art

[0002] The working principle of the grinder is that the outer grinding head is fixed, while the inner grinding head rotates. The relative movement of the inner and outer grinding heads squeezes and crushes particles such as coffee beans to form powder.

[0003] The grinder includes a main body, an outer grinding head and a fixed ring. The fixed ring and the main body clamp the outer grinding head in the middle to ensure that the outer grinding head is stationary relative to the main body. The traditional fastening method of the fixed ring and the main body is screw fixing. The fixed ring and the main body are fastened with 2 to 4 screws. The disadvantages of this method are as follows: 1. The screw head is exposed and not beautiful; 2. The cross groove of the screw head is not easy to clean and powder is easily residual; 3. Although the screw head is made of stainless steel, it will still rust, but the rust will take a longer time. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an outer grinding head fixing structure for a coffee grinder to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized through the following technical scheme: an external grinding head fixing structure applied to a coffee grinder, comprising: a main body, a fixing ring and an external grinding head arranged between the main body and the fixing ring, a circle of ultrasonic welding wire is arranged at the bottom of the main body, the main body and the fixing ring are connected together by the ultrasonic welding wire, and then the external grinding head is fixed between the main body and the fixing ring.

[0006] As a preferred embodiment, a cavity is opened through the interior of the main body, and a stirring arm is arranged in the cavity. There are three stirring arms, and the three stirring arms are symmetrically connected in the cavity. A through hole is opened at the connection between the three stirring arms away from the inner surface of the cavity, and the through hole is used to connect the stirring shaft of the stirring motor.

[0007] As a preferred embodiment, an inner ring is arranged below the three stirring arms, and a circle of ultrasonic welding wire is arranged at the bottom of the inner ring.

[0008] As a preferred embodiment, the outer surface of the inner ring is provided with vertical support ribs, and a plurality of the support ribs are provided, and there is a gap between the plurality of support ribs and the inner surface of the inner cavity.

[0009] As a preferred embodiment, the fixing ring is stepped, a through cavity is formed on the upper surface of the fixing ring, the outer grinding head is stepped, the fixing ring and the outer grinding head are symmetrically arranged, and when the outer grinding head is fixed in the through cavity of the fixing ring, the side surface of the outer grinding head contacts the inner side of the through cavity.

[0010] As a preferred embodiment, the inner surface of the inner ring extends inward to form a plurality of semicircular support units, and when the outer grinding head is fixed between the main body and the fixing ring, one end of the outer grinding head is against the support unit.

[0011] After adopting the above technical scheme, the beneficial effect of the utility model is: the screw fastening method is cancelled and ultrasonic welding is used instead. There is a circle of ultrasonic welding wire on the main body. Under the action of the ultrasonic welding machine, the main body ultrasonic welding wire is melted and welded together with the fixing ring, thereby achieving the function of fixing the external grinding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of an outer grinding head fixing structure used in a coffee grinder.

[0014] Figure 2 This is a cross-sectional view of an outer grinding head fixing structure used in a coffee grinder according to the utility model.

[0015] In the figure, 100-main body, 110-inner ring, 120-stirring arm, 111-ultrasonic welding line;

[0016] 200-fixing ring, 300-external grinding head. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1 to Figure 2The utility model provides a technical solution: a fixing structure of an outer grinding head 300 applied to a coffee grinder, comprising: a main body 100, a fixing ring 200, and an outer grinding head 300 arranged between the main body 100 and the fixing ring 200, a circle of ultrasonic welding wire 111 is arranged at the bottom of the main body 100, the main body 100 and the fixing ring 200 are connected together by the ultrasonic welding wire 111, and then the outer grinding head 300 is fixed between the main body 100 and the fixing ring 200.

[0019] As an embodiment of the present utility model: a cavity is opened through the inside of the main body 100, and a stirring arm is arranged in the cavity. There are three stirring arms, and the three stirring arms are symmetrically connected in the cavity. A through hole is opened at the connection between the three stirring arms away from the inner surface of the cavity, and the through hole is used to connect the stirring shaft of the stirring motor.

[0020] An inner ring 110 is arranged below the three stirring arms, and a circle of ultrasonic welding wire 111 is arranged at the bottom of the inner ring 110 .

[0021] The outer surface of the inner ring 110 is provided with vertical support ribs, and a plurality of the support ribs are provided, and there is a gap between the plurality of support ribs and the inner surface of the inner cavity.

[0022] The fixing ring 200 is in a stepped shape, and a through cavity is formed on the upper surface of the fixing ring 200. The outer grinding head 300 is in a stepped shape. The fixing ring 200 and the outer grinding head 300 are arranged symmetrically. When the outer grinding head 300 is fixed in the through cavity of the fixing ring 200, the side surface of the outer grinding head 300 contacts the inner side of the through cavity.

[0023] The inner surface of the inner ring 110 extends inwardly to form a plurality of semicircular support units. When the outer grinding head 300 is fixed between the main body 100 and the fixing ring 200 , one end of the outer grinding head 300 is pressed against the support unit.

[0024] As an embodiment of the utility model: when actually fixing, first insert the outer grinding head 300 into the cavity so that one end of the outer grinding head 300 is against the supporting unit, and then insert the fixing ring 200 into the cavity so that the bottom of the fixing ring 200 is against the other end of the outer grinding head 300, and then put the main body 100 together with the fixing ring 200 on the ultrasonic welding machine. Under the action of the ultrasonic welding machine, the ultrasonic welding wire is melted and welded with the fixing ring 200, thereby achieving the function of fixing the outer grinding head 300.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An outer grinding head fixing structure applied to a coffee grinder, comprising: A main body, a fixed ring and an external grinding head arranged between the main body and the fixed ring, characterized in that an ultrasonic welding line is arranged at the bottom of the main body, the main body and the fixed ring are connected together by the ultrasonic welding line, and then the external grinding head is fixed between the main body and the fixed ring.

2. The outer grinding head fixing structure used in a coffee grinder according to claim 1, characterized in that: A cavity is opened through the interior of the main body, and a stirring arm is arranged in the cavity. There are three stirring arms, and the three stirring arms are symmetrically connected in the cavity. A through hole is opened at the connection between the three stirring arms away from the inner surface of the cavity, and the through hole is used to connect the stirring shaft of the stirring motor.

3. The outer grinding head fixing structure used in a coffee grinder according to claim 2, characterized in that: An inner circle is arranged below the three stirring arms, and a circle of ultrasonic welding wire is arranged at the bottom of the inner circle.

4. The outer grinding head fixing structure for a coffee grinder as claimed in claim 3, characterized in that: The outer surface of the inner ring is provided with vertical support ribs, and a plurality of the support ribs are provided, and a gap exists between the plurality of support ribs and the inner surface of the inner cavity.

5. The outer grinding head fixing structure used in a coffee grinder according to claim 4, characterized in that: The fixing ring is stepped, a through cavity is formed on the upper surface of the fixing ring, the outer grinding head is stepped, the fixing ring and the outer grinding head are symmetrically arranged, and when the outer grinding head is fixed in the through cavity of the fixing ring, the side surface of the outer grinding head contacts the inner side of the through cavity.

6. The outer grinding head fixing structure used in a coffee grinder according to claim 5, characterized in that: The inner surface of the inner ring extends inwardly to form a plurality of semicircular support units. When the outer grinding head is fixed between the main body and the fixing ring, one end of the outer grinding head is pressed against the support unit.

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