Linkage piece of coffee machine

Abstract

The invention discloses a linkage piece of a coffee machine. The linkage piece of the coffee machine comprises a driving plate (1), a driven plate (2), a hollow shaft (8), a sleeve (9) and a screw (10). The inner surface of the driving plate (1) and the inner surface of the driven plate (2) are respectively provided with an annular protrusion (11), the two ends of the sleeve (9) are in sleeved fit with the two annular protrusions (11), the hollow shaft (8) is contained in the sleeve (9), and the two ends of the hollow shaft (8) are limited circumferentially by the two annular protrusions (11). When internal threads are located on the driving plate (1), the screw (10) penetrates through a center hole of the driven plate (2) and a center hole of the hollow shaft (8) to be screwed to internal threads of a center hole of the driving plate (1). The driving plate (1), the driven plate (2), the hollow shaft (8) and the sleeve (9) are all metal pieces. The strength of the linkage piece of the coffee machine can be improved, rotation synchronism between the driving plate (1) and the driven plate (2) can be guaranteed, noise is lowered, damping oil does not need to be used, and the linkage piece is convenient to manufacture.

Description

technical field [0001] The invention relates to a component of a coffee machine, in particular to a linkage part that plays a driving role inside the coffee machine. Background technique [0002] The coffee machine includes a frame and a slider. The frame is provided with a chute, and the slider is slidably fitted in the chute. The top of the slider is provided with a brewing chamber with an open upper end, and an upper filter plate is provided in the frame. When sliding When the block rises to a certain height along the chute, the brewing chamber can be tightly pressed against the upper filter plate to form a closed chamber for brewing coffee. The linkage is the part used to drive the slider up and down in the coffee machine. [0003] The linkage includes a driving plate, a driven plate and a linkage shaft, the two ends of the linkage shaft are respectively fixed to the inner surface of the driving plate and the inner surface of the driven plate, and the outer surface of t...

AI Technical Summary

Problems solved by technology

[0004] The linkage of the coffee machine in the prior art is an integral injection-molded plastic part. Due to the insufficient strength of the plastic, the strength of the linkage is insufficient, and there is bound to be a large resistance in the process of driving the slider up and down. This resistance will destroy The synchronization of the rotation of the active plate and the driven plate of the plastic linkage with insufficient strength, that is, the active plate has rotated to a certain extent under the action of the motor and the driven plate has not started to rotate due to resistance, which will destroy the stability of the transmission and cause the slider to slip. Unable to lift up and down smoothly, and make a lot of noise

In order to reduce the noise, a layer of damping oil must be applied to the linkage parts, and the damping oil is easy to pollute the internal structure of the coffee machine and is difficult to clean

Some people hope to replace plastic parts with metal parts in order to improve the strength, but the shape and structure of the linkage parts are more complicated and cannot be cast

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