Cat litter box with anti-pinch based on multiple sensors

Abstract

The utility model relates to pet supplies technical field, concretely relates to a kind of cat anti-pinch litter box based on multiple sensors, including shell, shell bottom is equipped with support, shell top detachably installs cover, one side inside shell is rotatably installed with roller, drive motor is arranged in shell, drive motor drives roller to rotate, shell bottom is provided with collection box;The other side in shell is provided with access channel, and hollow step is installed in access channel;Access identification mechanism is provided on shell, and the access of cat is identified by access identification mechanism;Cat identification mechanism is provided on the inner wall of the side corresponding to the roller in shell, whether there is cat in roller by cat identification mechanism;Foreign matter identification mechanism is provided on the both sides of collection box corresponding to the bottom in shell, whether there is foreign matter in collection box by foreign matter identification mechanism.The combination judgment of multiple sensors is realized intelligent identification cat access and the function of preventing cat from being pinched in cleaning process, and safety is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of pet supplies technology, and in particular to an anti-pinch cat litter box based on multiple sensors. Background Technology

[0002] As people's living standards improve, more and more people are keeping pets, with cats being one of the most popular choices. To maintain a clean indoor environment, cat litter boxes are used as toilet supplies for cats, making it easy to clean up after them. To make things easier for users, products have been developed that automatically separate excrement from litter, allowing the excrement to fall into a bottom bin, thus automatically cleaning the litter box.

[0003] Application number 2022235457046 discloses an anti-pinch cat litter box. By setting a sensor component at the edge of the excretion channel, the sensor component monitors whether there are objects in the excrement channel and controls whether the rotating drum stops, thereby preventing the cat from being pinched and improving the safety of use.

[0004] However, existing anti-pinch devices for cats only monitor the process of excrement being discharged through the excrement channel. At this time, the cat is already inside the roller and rotating with it. This can easily cause injury before the cat enters the excrement channel, as the presence of the cat cannot be detected in time, leading to safety accidents and affecting the safe use of the litter box. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose an anti-pinch cat litter box based on multiple sensors to solve the problem of incomplete monitoring and easy safety accidents.

[0006] To achieve the above objectives, this utility model provides an anti-pinch cat litter box based on multiple sensors, including a shell, a bracket installed at the bottom of the shell, a detachable cover plate installed at the top of the shell, a roller rotatably installed on one side inside the shell, a drive motor installed inside the shell to drive the roller to rotate, and a waste collection box installed at the bottom of the shell; an inlet / outlet channel is provided on the other side of the shell, and a hollow step is installed in the inlet / outlet channel; an inlet / outlet recognition mechanism is provided on the shell to identify the entry and exit of cats; a cat recognition mechanism is provided on the inner wall of the shell corresponding to the roller to identify whether there is a cat inside the roller; and foreign object recognition mechanisms are provided on both sides of the bottom of the shell corresponding to the waste collection box to identify whether there are foreign objects inside the waste collection box.

[0007] A further improvement is that the entry / exit identification mechanism includes a weight sensor and a diffuse infrared sensor. The weight sensor is mounted on the bracket to monitor weight changes during entry and exit. The diffuse infrared sensor is mounted on the side wall of the passage to monitor the entry and exit of cats within the passage.

[0008] A further improvement is that a door is installed on the side of the inlet / outlet channel near the roller, and a servo motor is installed inside the housing to drive the door to rotate.

[0009] A further improvement is that the cat identification mechanism includes a pyroelectric sensor, which monitors whether there is a cat inside the drum.

[0010] A further improvement is that the foreign object identification mechanism includes a through-beam infrared sensor, which is respectively installed on the inner wall of the two sides of the stool collection box to monitor foreign objects in the stool collection box.

[0011] A further improvement is that the cover plate is provided with a grid, and a locking block is installed on the inner side of the cover plate. An adsorbent box is locked onto the locking block, and the adsorbent box is filled with deodorizing adsorbent.

[0012] The beneficial effects of this invention are as follows: By incorporating an entry / exit identification mechanism, the cat's entry and exit are effectively identified. A weight sensor detects weight changes within the litter box, while a diffuse infrared sensor detects the cat's movement. The combined use of the weight and diffuse infrared sensors improves the accuracy of cat entry / exit detection. The cat identification mechanism, using a pyroelectric sensor, identifies the cat inside the rolling drum, effectively preventing the cat from remaining inside while the drum rotates, reducing potential harm. Furthermore, the foreign object identification mechanism, using a through-beam infrared sensor, monitors foreign objects entering the litter box, further reducing the possibility of the cat being trapped and significantly improving safety. Based on the combined judgment of the weight sensor, diffuse infrared sensor, pyroelectric sensor, and through-beam infrared sensor, multi-level sensing and identification are performed. Monitoring is conducted throughout the cat's litter box use and during automatic cleaning, enabling the intelligent litter box to intelligently identify cat entry and exit during litter cleaning and prevent cat trapping, greatly enhancing safety. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the shell structure of an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the shell in an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the bottom structure of the housing in an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the cover plate structure in an embodiment of the present utility model.

[0018] The diagram is marked as follows:

[0019] 1. Housing; 2. Bracket; 3. Cover plate; 4. Roller; 5. Drive motor; 6. Waste collection box; 7. Inlet / outlet channel; 8. Hollowed-out steps; 9. Weight sensor; 10. Diffuse infrared sensor; 11. Door; 12. Servo motor; 13. Pyroelectric sensor; 14. Through-beam infrared sensor; 15. Locking block; 16. Adsorbent box. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1 , 4As shown, this utility model provides an anti-pinch cat litter box based on multiple sensors, including a shell 1, a bracket 2 installed at the bottom of the shell 1, and a cover plate 3 detachably installed at the top of the shell 1. The cover plate 3 is provided with a grid, which allows air circulation between the inside and outside of the shell 1. A locking block 15 is installed on the inner side of the cover plate 3, and an adsorbent box 16 is locked onto the locking block 15. The adsorbent box 16 is filled with deodorizing adsorbent. By installing the adsorbent box 16, the deodorizing adsorbent absorbs the odor in the cat litter box.

[0023] like Figure 2 As shown, a roller 4 is rotatably installed on one side of the housing 1. A drive motor 5 is installed inside the housing 1, which drives the roller 4 to rotate. The roller 4 sieves the excrement in the cat litter. A discharge port is opened in the housing 1 below the roller 4. A waste collection box 6 is provided at the bottom of the housing 1. The waste collection box 6 is set correspondingly to the discharge port. The sieved excrement falls into the waste collection box 6 through the discharge port for collection and treatment. Sieving cat litter with the roller 4 is existing technology and is not specifically limited here.

[0024] like Figure 1 , 2 As shown, an access channel 7 is provided on the other side of the housing 1. A door 11 is installed on the side of the access channel 7 near the roller 4. A servo motor 12 is installed inside the housing 1, which drives the door 11 to rotate. Sensors are installed on the inner wall of the housing 1. The door 11 contacts the corresponding sensor when it is open or closed, so that the sensor can sense the opening and closing of the door 11, thus ensuring that the door 11 is properly opened and closed. A perforated step 8 is installed inside the access channel 7. The cat enters and exits into the housing 1 through the access channel 7. The entry and exit recognition mechanism monitors the cat's entry and controls the servo motor 12 to drive the door 11 to rotate and open, allowing the cat to enter the roller 4 from the access channel 7 to defecate. After the entry and exit recognition mechanism detects that the cat has left, the servo motor 12 drives the door 11 to rotate and close.

[0025] The housing 1 is equipped with an entry and exit identification mechanism to identify the entry and exit of cats. The entry and exit identification mechanism includes a weight sensor 9 and a diffuse infrared sensor 10. The weight sensor 9 is mounted on the bracket 2 to monitor weight changes during entry and exit. The diffuse infrared sensor 10 is mounted on the side wall of the entry and exit channel 7 to monitor the entry and exit of cats in the entry and exit channel 7.

[0026] Cat entry detection: The presence of a cat in the litter box is determined by an increase in the values ​​of the diffuse infrared sensor 10 and the weight sensor 9.

[0027] The system determines whether a cat has left the room by analyzing the decrease in values ​​from the diffuse infrared sensor 10 and the weight sensor 9. The relationship between two increases and decreases in the weight sensor 9 value determines whether the cat has completely left, avoiding the previous situation where multiple cats entered but only some left. The time between entry and exit is used to determine the validity of the cat's entry, which then serves as the basis for initiating cleaning.

[0028] A cat identification mechanism is provided on the inner wall of the housing 1 corresponding to the roller 4. The cat identification mechanism identifies whether there is a cat in the roller 4. The cat identification mechanism includes a pyroelectric sensor 13, which monitors whether there is a cat in the roller 4.

[0029] If the cat's entry is valid, the cleaning process begins. Once cleaning is initiated, the pyroelectric sensor 13 will detect the presence of a cat inside the litter box as the roller 4 rotates. If no cat is detected, the door closes to prevent a cat from suddenly entering during cleaning. After the door 11 closes, the pyroelectric sensor 13 will again detect the presence of a cat inside as the roller 4 rotates a certain angle during cleaning. If the pyroelectric sensor 13 detects a cat inside during cleaning, the roller 4 resets, and the door 11 opens.

[0030] Foreign object detection mechanisms are provided on both sides of the waste collection box 6 at the bottom of the inner shell 1 to identify whether there are foreign objects inside the waste collection box 6. The foreign object detection mechanism includes a through-beam infrared sensor 14, which consists of a through-beam infrared emitting tube and a through-beam infrared receiving tube. The through-beam infrared emitting tube and the through-beam infrared receiving tube are respectively installed on the inner walls of the shell 1 on both sides of the waste collection box 6. The through-beam infrared sensor 14 monitors for foreign objects inside the waste collection box 6.

[0031] If the pyroelectric sensor 13 does not detect the cat inside during the cleaning process, the cleaning will proceed normally. When the cleaning reaches the designated position, the through-beam infrared sensor 14 of the waste collection box 6 will detect whether there is any foreign object. If a foreign object is found at this time, the roller 4 will stop working until the foreign object is removed.

[0032] The weight sensor 9, diffuse infrared sensor 10, pyroelectric sensor 13, through-beam infrared sensor 14, drive motor 5, and servo motor are electrically connected to the controller. Based on the combined judgment of the weight sensor 9, diffuse infrared sensor, pyroelectric sensor 13, and through-beam infrared sensor 14, the smart litter box can intelligently identify cats entering and exiting during litter cleaning and prevent cats from getting stuck during the cleaning process.

[0033] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this utility model is limited to these examples; within the framework of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this utility model as described above, which are not provided in the details for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cat litter box with multiple sensors for preventing cats from being pinched, comprising a housing (1), a bracket (2) installed at the bottom of the housing (1), a cover plate (3) detachably installed at the top of the housing (1), a roller (4) rotatably installed on one side inside the housing (1), a drive motor (5) provided inside the housing (1) to drive the roller (4) to rotate, and a waste collection box (6) provided at the bottom of the housing (1); characterized in that, An entry / exit channel (7) is provided on the other side of the housing (1), and a hollow step (8) is installed in the entry / exit channel (7); an entry / exit identification mechanism is provided on the housing (1) to identify the entry and exit of the cat; a cat identification mechanism is provided on the inner wall of the housing (1) corresponding to the roller (4) to identify whether there is a cat in the roller (4); a foreign object identification mechanism is provided on both sides of the bottom of the housing (1) corresponding to the collection box (6) to identify whether there is a foreign object in the collection box (6).

2. The anti-pinch cat litter box based on multiple sensors according to claim 1, characterized in that, The entry and exit identification mechanism includes a weight sensor (9) and a diffuse infrared sensor (10). The weight sensor (9) is installed on the bracket (2) to monitor the weight change during entry and exit. The diffuse infrared sensor (10) is installed on the side wall of the channel to monitor the entry and exit of the cat in the channel (7).

3. The anti-pinch cat litter box based on multiple sensors according to claim 1, characterized in that, The entrance / exit channel (7) is equipped with a door (11) on the side near the roller (4), and a servo motor (12) is installed inside the housing (1). The door (11) is driven to rotate by the servo motor (12).

4. The anti-pinch cat litter box based on multiple sensors according to claim 1, characterized in that, The cat identification mechanism includes a pyroelectric sensor (13) to monitor whether there is a cat inside the drum (4).

5. The anti-pinch cat litter box based on multiple sensors according to claim 1, characterized in that, The foreign object identification mechanism includes a through-beam infrared sensor (14), which is respectively installed on the inner wall of the shell (1) on both sides of the collection box (6) to monitor foreign objects in the collection box (6).

6. The anti-pinch cat litter box based on multiple sensors according to claim 1, characterized in that, The cover plate (3) is provided with a grid, and a locking block (15) is installed on the inner side of the cover plate (3). An adsorbent box (16) is locked on the locking block (15), and the adsorbent box (16) is filled with deodorizing adsorbent.

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