Automatic cat excrement cleaning device

Abstract

The embodiment of the invention provides an automatic cat excrement cleaning device. The automatic cat excrement cleaning device comprises a ball bin assembly and a driving assembly, the ball bin assembly is configured to at least comprise three spaces, namely a working bin used for containing cat litter and allowing cats to excrete, a screening bin used for screening the cat litter and cat excrement and an excrement collecting bin used for containing the cat excrement, and a plurality of screening holes are formed in the surface, facing the circle center of the ball bin assembly, of the screening bin; the driving assembly is configured to drive the ball bin assembly to rotate; when the ball bin assembly rotates to a first position, the screening bin is located at the lowest position of the ball bin assembly, the cat litter penetrates through the screening holes to fall into the screening bin, and the cat litter is retained in the working bin due to the fact that the size of the cat litter is larger than that of the screening holes; and when the ball bin assembly rotates to a second position, the excrement collecting bin is located at the lowest position of the ball bin assembly, and cat excrement falls into the excrement collecting bin. The automatic cat excrement cleaning device is simple and compact in structure, small in size, portable, high in space utilization rate and easy to clean.

Description

technical field [0001] Embodiments of the present disclosure generally relate to the technical field of pet supplies, and more specifically, relate to an automatic cat excrement cleaning device. Background technique [0002] With the continuous improvement of material life and the simplification of family members, more and more families, especially single youths, like to keep pets as family members and playmates in their spare time, especially in economically developed metropolises. Due to the housing area, more and more people tend to keep cats. Generally, trained cats will excrete feces on cat litter and bury them. People need to manually select feces from cat litter, which is time-consuming and laborious; The feces of cats will not only make the room stink due to the unpleasant smell, but also bring a series of hygiene problems, so it is particularly important to invent an automatic cat excrement cleaning device. Among the existing automatic cat excrement cleaning devic...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the drum-type cat feces cleaning device based on the principle of gravity screening all places the feces collection bin outside the drum, and the feces collection bin does not rotate with the drum when the drum rotates; Set in the space of the base, this design increases the thickness of the base, the base must reserve a certain space, increases the height of the base, and further increases the height and difficulty for cats to enter the drum, especially for some short-legged cats It is quite inconvenient to get in and out; and because the position of the drum is relatively high, the cat will jump when it leaves the drum, and the cat litter in the drum will be taken out, polluting the ground, and some manufacturers will increase the position where the cat enters and exits. A cat litter collection device to collect the cat litter that has been taken out, or add a slope at the entrance and exit position to facilitate the cat's entry and exit, which will increase the manufacturing cost and increase the footprint of the cat excrement cleaning device

And the toilet collection bin is set at the bottom, users need to squat down to clean the toilet collection bin, which is quite inconvenient for taller or heavier users

[0004] There is also a technology to arrange the stool collection bin on the rear side of the drum, which greatly increases the front and rear length of the entire cat excrement cleaning device, and makes the cat excrement cleaning device occupy a larger area, which is not suitable for users in small rooms. The space utilization rate of the cat excrement cleaning device is low; and every time the user cleans the feces collection bin, it is necessary to move or adjust the position of the cat feces cleaning device to take out the feces collection bin located at the back of the drum, which is less convenient and laborious strenuous

[0005] Moreover, the cat feces cleaning devices in the prior art all need to add a special channel to export the cat feces in the drum to the feces collection bin. During the exporting process, the alignment accuracy of the structure is high, and the structure is increased. If it is not fully aligned, the cat feces will pollute the entire export channel, which increases the cleaning workload of the user; and the cat feces in the feces collection bin are easy to accumulate at the channel opening, which will cause the sensor that the feces collection bin is full The signal is triggered in advance; if the accumulation of cat feces in the feces collection bin is high, cat feces may be brought into the gap between the drum and the base when the drum rotates, which further increases the difficulty and workload of cleaning for users

On the other hand, a special channel is set between the drum and the feces collection bin. When the channel rotates and rotates, relative movement occurs in the channel, and there is a shearing action, which makes the cat feces cleaning device have the possibility of cat trapping accidents

In order to avoid the possibility of such cat trapping accidents, some manufacturers use multiple safety judgment sensors to judge whether the cat is in the drum, and set up emergency stop sensors. These measures not only increase the production cost, but also increase the complexity of the program. , the more complex the program, the more error-prone

For example, when it is detected that the cat is at risk of being trapped, the device starts an emergency stop, and it is impossible to judge whether the cat has escaped. If it is reset at this time, it may aggravate the damage to the cat. If it is not reset, the device will be unusable; There may be false triggering of the system. After false triggering, the device will be in an unusable state. If the user is out of office or on a business trip, it will cause the cat to be unable to use the device for a long time

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