[0003] There are many defects in the existing multifunctional household food cooking machines, especially in terms of safety protection. For example, the existing multifunctional household food cooking machines can only rely on the user to pre-set the
heating time or decide to stop heating to prevent the food from being burnt or even causing damage. The danger of fire, but this is not safe, so the traditional multi-functional household food processor has a greater hidden danger of high temperature accidents; another example: because the paste food is a relatively
viscous liquid, the mixing knife needs to be larger when stirring The rotating force, and as the
moisture decreases, the resistance encountered by the stirring knife may become larger and larger, and the increase of resistance indirectly increases the load of the stirring motor. When it increases to a certain extent, the stirring motor will It may be damaged or even cause a fire due to the burning of the coil due to high temperature, so the existing multifunctional household food cooking machine has a potential safety
hazard caused by an excessive load; another example: the upper cover of the existing multifunctional household food cooking machine There is no protection device. On the one hand, due to the constant stirring during the
cooking process, high-temperature food will splash in the pot. If the upper cover is accidentally opened,
scalding accidents are likely to occur. On the other hand, if the upper cover is opened When the feeding wheel is still rotating, it is likely to cause a safety accident. In short, if the motor is still running after opening the upper cover, it is likely to cause a safety accident.
[0004] In addition, there are still many defects in the existing multifunctional household food cooking machines, which lead to a fly in the ointment in the
cooked food, such as: the stirring knife of the existing multifunctional household food cooking machines, its structure is generally a combination of multiple horizontal or vertical blades, There is no closed connection between each other, and a strong
eddy current cannot be formed during the stirring process, resulting in insufficient
impact between foods, insufficient
fineness of particles, insufficient fusion, and failure to achieve the best stirring effect; another example: The feeding funnel and the funnel cover of the existing multifunctional household food cooking machine do not have any locking device, and are completely stable by its own gravity, so there are the following defects: because the feeding funnel is relatively high, when it rotates and completes automatic feeding, it may Tilting or even falling down is not safe enough. After the lid is closed, the pressure is not enough and the air is not closed. It is easy to escape when stewing rice or soup, resulting in insufficient
aroma of the food and delaying the cooking time.
[0005] The existing multifunctional household food cooking machines have the following defects: the heating device is a heating tube, and its defects are: low
heat transfer efficiency, uneven heating, and relatively large heat loss, resulting in low cooking speed and large
energy loss; A general anti-leakage device is used between the stirring shaft and the bottom wall of the inner tank, that is, a
gasket is installed under the bottom wall of the inner tank, and an oil bearing is installed under the
gasket. This structure has a general anti-leakage effect, because the liquid in the inner tank will The vortex is generated by stirring, so its pressure is relatively high, so the existing multi-functional household food cooking machines are more prone to the problem that the liquid in the inner tank leaks along the stirring shaft, which may cause a
short circuit and damage to the stirring motor, resulting in product failure. Damage or even the occurrence of safety accidents such as fire; In addition, the driving device of the existing multifunctional household food cooking machine feeding hopper is shared with the driving device of the stirring knife, that is, the shared stirring motor is used as the driving force, but different speed change devices (such as
Pulley and belt) to realize the drive respectively, the problem of this structure is: the feeding hopper driving wheel and the mixing knife must rotate and stop at the same time. Wasted energy and increased usage costs