Parts opening and closing system for beverage extraction plant

Abstract

The invention relates to a part opening and closing device for a beverage extraction device. The part opening and closing device for the beverage extraction device comprises a fixing part and a movable part; the two parts are connected together by a rotary shaft; the part opening and closing device is characterized by comprising a handle with two driving arms, two traction rods and two levers; the upper ends of the two driving arms are connected onto the fixing part by a first pivot shaft; the lower ends of the two driving arms are connected with connection rods by a second pivot shaft; the lower ends of the traction rods are connected to two sides of the fixing part by a third pivot shaft; the middles of the levers are connected onto the movable part by a fourth pivot shaft; the upper ends of the levers are connected with the upper ends of the traction rods by a fifth pivot shaft; the lower ends of the levers are connected with the other ends of the connection rods by a sixth pivot shaft. The connection distance between the traction rods and the handle can be lengthened by the levers and the connection rods, the opening angle between the two parts is enlarged after the two parts are opened, the part opening and closing device is suitable for a coffee capsule with a larger size, the forward tangential force of the connection rods for the levers is large in the opening process of the handle, the two parts can be more easily opened and a good hand feeling is ensured.

Description

technical field [0001] The present invention relates to a beverage extraction device, in particular to a mechanism opening and closing system for the beverage extraction device, wherein the beverage extraction device may be a coffee machine. Background technique [0002] There is a Chinese invention patent "A device for preparing beverage extracts" with a patent number of ZL00812101.X (notification number CN1263415C), which discloses such a device, which includes a first fixed part and a relatively first part A second mechanism rotating around a rotation axis, said axis of rotation being located at the rear of said two mechanisms, a cavity is provided at the front of each mechanism to accommodate the extracted substance, and the device also includes a closable and a system for opening two parts, said system having a double-armed closing lever and two drawbars, the two arms of the closing lever being fixed on first pivots on either side of said second part and capable of Aro...

AI Technical Summary

Problems solved by technology

Although this device overcomes the defect of the coffee machine in the international patent application WO94 / 02059, it achieves the purpose that the fixed part can effectively lock the upper part, because when the two parts are closed, the first, second and third pivots The axis is basically on the same vertical plane, and the vertical plane is at the rear of the cavity containing the extracted substance, and the two arms of the closing lever are directly connected with the drawbar, so that the force exerted on the closing lever during opening is passed through the closing lever's The arms are directly transmitted to the drawbar. The tangential thrust transmitted to the drawbar is relatively small, and the tangential thrust is the main force to open the two parts. Therefore, the device requires a large force to open the two parts. At the same time, the two machines There is no assistance during the opening process, and the opening feel is poor

In addition, in order to ensure better locking force of the aforementioned device, the vertical plane formed by its first, second and third pivots is located at the rear of the cavity containing the extracted substance, which will also cause the length of the whole device to be too long, which is not good. Conducive to product miniaturization

Since the closing rod is directly connected to the rotating drawbar, when the two parts are fully opened, the opening angle of the two parts is relatively small, and it can only place smaller coffee capsules between the two parts. A spherical coffee capsule. The volume and overall height of this coffee capsule are relatively large. If the opening angle between the two parts is too small, it is not conducive to placing such a large-sized coffee capsule between the two parts. extraction

[0003] In summary, there is still a need to further improve the existing opening and closing structure of this type of machine

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