Automatic feeding device for pet food and water

Abstract

The utility model discloses a kind of automatic feeding equipment of pet food and water, it is related to pet product technical field, it is equipped with sliding seat and self-cleaning mechanism;Sliding seat is slidably installed in the bottom of feeder and is equipped with pusher assembly, a pair of food tray is connected with sliding seat, can be driven under pusher assembly and follow sliding seat and slide out or retract by the feeding outlet opened in the front side of feeder;Self-cleaning mechanism for cleaning food tray is installed in the feeder, when sliding seat is in retracted state, self-cleaning mechanism is located above a pair of food tray.The utility model realizes the quantitative feeding of pet food and drinking water and the automatic cleaning of food tray for containing food and drinking water by the collaborative work of sliding seat and self-cleaning mechanism which can extend or retract to the front side of feeder, both ensures the punctuality of feeding, and also ensures the diet hygiene of pet, solves the problem of affecting pet health caused by the existing automatic feeding equipment due to easy breeding bacteria and other reasons.

Description

Technical Field

[0001] This utility model relates to the field of pet supplies technology, specifically to a device for automatically feeding pets food and water. Background Technology

[0002] With the fast pace of modern life, pet owners often face the problem of not being able to feed their pets on time, leading to the emergence of automatic pet feeding devices.

[0003] Existing automated pet feeding systems typically consist of a food storage bin, a control module, a feeding mechanism, and a feeding trough. The control module uses preset programs or intelligent sensors to control the feeding mechanism to dispense food and water via gravity or a screw conveyor, fulfilling the pet's basic feeding needs. However, in existing automated pet feeding systems, food and water enter directly into fixed feeding troughs. For food-containing troughs, food scraps and saliva remain on the walls and bottom after the pet eats, making them difficult to remove. This residue gradually ferments and spoils, easily leading to bacterial growth. For drinking water-containing troughs, residual drinking water often remains after the pet drinks. Stagnant water is more prone to algae and microorganisms, seriously affecting the pet's dietary hygiene. While some existing automated pet feeding systems support manual disassembly and cleaning of the feeding troughs, they still lack ease of use and cannot achieve a closed-loop automated feeding system.

[0004] Therefore, we propose an automatic pet food and water feeding device to solve the problems mentioned above. Utility Model Content

[0005] This invention aims to overcome the shortcomings of the existing technology by providing an automatic pet food and water feeding device.

[0006] The present invention adopts the following technical solution to solve the technical problem: an automatic pet food and water feeding device, including a feeder, wherein the feeder is provided with a pair of food trays, and a discharge pipe and a water discharge pipe are respectively provided above the pair of food trays for quantitatively dispensing food or drinking water into the food trays under the action of the feeder, and also provided with a sliding seat and a self-cleaning mechanism;

[0007] The sliding seat is slidably installed at the bottom of the feeder and is equipped with a pushing component. A pair of feed trays are installed and connected to the sliding seat, and can slide out or slide back from the feeding outlet opened on the front side of the feeder under the drive of the pushing component.

[0008] The self-cleaning mechanism for cleaning the feed trays is installed inside the feeder. When the sliding seat is in the retracted state, the self-cleaning mechanism is located directly above the pair of feed trays.

[0009] Furthermore, the self-cleaning mechanism includes a high-pressure rinsing assembly for high-pressure rinsing the feed tray;

[0010] The food tray is composed of a first trough and a second trough arranged symmetrically, and is equipped with an opening and closing component for driving the first trough and the second trough to move towards each other to join or move away from each other to separate.

[0011] Below the food tray is a corresponding collection drawer for collecting leftover food, drinking water, and rinsing water.

[0012] Furthermore, the sliding seat has a cavity with a pair of food tray openings at the top; the food tray is located in the cavity, with its top fitting against the sliding seat, and when the first groove and the second groove are assembled, the opening of the food tray is exactly connected to the food tray opening;

[0013] The opening and closing assembly includes a bidirectional screw and a servo motor for driving the bidirectional screw to rotate; the first groove and the second groove are respectively threadedly installed on the bidirectional screw in regions with opposite thread directions; they can move towards each other to assemble or move away from each other to separate under the rotational movement of the bidirectional screw and the limiting action of the sliding seat; the bidirectional screws in a pair of opening and closing assemblies are preferably fixed by a shaft, and the pair of opening and closing assemblies preferably share the same servo motor.

[0014] Furthermore, the self-cleaning mechanism also includes a lifting plate with an internal water cavity, which is connected to a water source;

[0015] The high-pressure flushing assembly includes a spray bar, a rotating liquid supply pipe, a connecting gear ring, a motor, and a pinion.

[0016] The spray bar is a hollow, arc-shaped rod structure corresponding to the shape of the feeding tray. A pair of spray bars are respectively arranged above a pair of feeding trays, and spray holes facing the feeding trays are densely distributed on them. The spray bar is rotatably connected to the lifting plate through the rotating liquid supply pipe and communicates with the water cavity.

[0017] The motor is mounted and fixed to the lifting plate, and the connecting gear ring is mounted and fixed at its output end. The connecting gear ring meshes with the small gear fixed outside the rotating liquid supply pipe.

[0018] Furthermore, the self-cleaning mechanism also includes an electric push rod;

[0019] The electric push rod is installed and fixed inside the feeding machine, and its output end is installed and connected to the lifting plate, which can drive the lifting plate to rise or fall.

[0020] Furthermore, the collection drawer includes an outer drawer, an inner box, a pressure sensor, and a separation partition;

[0021] The outer drawer is slidably connected to the sliding seat and can be slidably extended or retracted through the maintenance opening on the rear side of the feeding machine; the inner box is inserted into the outer drawer and a pressure sensor for weighing is provided between its bottom and the outer drawer.

[0022] The inner box is equipped with a detachable partition with a cross-section covered by the partition, and the partition is densely covered with filter holes; the partition is used to separate food residue and drinking water.

[0023] Furthermore, a handle groove is fixedly provided on the rear side of the outer drawer, and a magnetic block is provided on at least one of the outer sides, either the left or right side. The magnetic block provided on the outer drawer is magnetically attracted to the corresponding magnetic block provided in the sliding seat.

[0024] Furthermore, the actuation assembly includes a stepper motor, a threaded rod, and a slider;

[0025] The slider is slidably installed into the groove opened inside the feeder, fixed to the sliding seat, and threadedly connected to the threaded rod; the end of the threaded rod is shaft-connected to the output end of the stepper motor.

[0026] Furthermore, a sealing ring is fixed at the joint position of either the first groove or the second groove, and an arc-shaped groove that mates with the sealing ring is opened at the joint position of the other groove.

[0027] The front side of the feeding machine, above the feeding outlet, is equipped with a motion sensor and a camera that are connected to the feeding mechanism for data transmission.

[0028] Furthermore, ultraviolet sterilization lamps are installed at the bottom of both the food tray and the lifting plate.

[0029] This utility model provides an automatic pet food and water feeding device, which has the following beneficial effects:

[0030] 1. This utility model achieves quantitative dispensing of pet food and drinking water and automatic cleaning of the feeding trays used to hold food and drinking water by working in coordination with a sliding seat that can extend or retract to the front of the feeder. This ensures both the timeliness of feeding and the hygiene of the pet's diet, and solves the problem of existing automatic feeding equipment affecting pet health due to easy growth of bacteria.

[0031] 2. The food tray of this utility model has a detachable structure that can be separated by the opening and closing components. Combined with a self-cleaning mechanism that uses high-pressure rinsing for rotary rinsing, it can effectively clean up food scraps, saliva and remaining drinking water attached to the food tray, thereby effectively ensuring the hygiene of the pet's diet.

[0032] 3. The entire feeding and watering process of this utility model requires no manual intervention, has a high degree of automation, is easy to use, and can intelligently sense the pet's eating status and record images through motion sensors and cameras, providing pet owners with more reassuring feeding management functions. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0034] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0035] Figure 3 This is a schematic diagram of the self-cleaning mechanism of this utility model;

[0036] Figure 4 This is a schematic diagram of a partial explosion structure of the present invention;

[0037] Figure 5 This is a schematic diagram of the structure of the discharge pipe and the water discharge pipe of this utility model;

[0038] Figure 6 This is a partial structural schematic diagram of the present invention;

[0039] Figure 7 This is a schematic diagram of the automatic feeding process of this utility model.

[0040] In the picture:

[0041] 1. Feeder, 2. Sliding seat, 4. Feed tray, 5. First tank, 6. Second tank, 8. Bidirectional screw, 14. Outer drawer, 15. Inner box, 16. Pressure sensor, 17. Separation partition, 19. Handle slot, 21. Maintenance opening, 22. Electric push rod, 23. Lifting plate, 25. Spray bar, 26. Spray hole, 27. Rotary liquid supply pipe, 28. Connecting gear ring, 29. Motor, 30. Pinion, 31. Ultraviolet sterilization lamp, 34. Discharge pipe, 35. Water outlet pipe, 36. Motion sensor, 37. Camera, 38. Feed outlet. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] Example 1

[0044] An automatic pet food and water dispensing device, such as Figures 1-6 As shown, its structural relationship is as follows: it includes a feeding machine 1, which is equipped with a pair of feeding trays 4, and a discharge pipe 34 and a water discharge pipe 35 respectively above the pair of feeding trays 4 for quantitatively dispensing food or drinking water into the feeding trays 4 under the action of the feeding mechanism. It is also equipped with a sliding seat 2 and a self-cleaning mechanism.

[0045] The sliding seat 2 is slidably installed at the bottom of the feeder 1 and is equipped with a pushing component. A pair of feed trays 4 are installed and connected to the sliding seat 2, and can slide out or slide back from the feeding outlet 38 opened on the front side of the feeder 1 under the drive of the pushing component.

[0046] The self-cleaning mechanism for cleaning the feed trays 4 is installed inside the feeder 1. When the sliding seat 2 is in the retracted state, the self-cleaning mechanism is located directly above the pair of feed trays 4.

[0047] When the sliding seat 2 causes a pair of food trays 4 to slide out of the feeder 1, it makes it convenient for the pet to eat. When the sliding seat 2 causes the pair of food trays 4 to retract into the feeder 1, the self-cleaning mechanism cleans the food trays 4. The feeding mechanism then feeds food and drinking water into the pair of food trays 4 through the discharge pipe 34 and the water discharge pipe 35, respectively.

[0048] In actual setup, the feeder 1 can be equipped with a control motherboard and a timer switch. The timer switch, the push component, and the self-cleaning mechanism are electrically connected to the control motherboard. The control motherboard controls the operation of the push component and the self-cleaning mechanism based on the timing information fed back by the timer switch.

[0049] Preferably, the self-cleaning mechanism includes a high-pressure rinsing assembly for high-pressure rinsing the feed tray 4;

[0050] The food tray 4 is composed of a first trough 5 and a second trough 6 arranged symmetrically, and is equipped with an opening and closing component for driving the first trough 5 and the second trough 6 to move towards each other to join or move away from each other to separate.

[0051] Below the food tray 4, there is a corresponding collection drawer for collecting leftover food, drinking water, and rinsing water.

[0052] When the first tank 5 and the second tank 6 move away from each other and separate under the action of the opening and closing assembly, the food residue and remaining drinking water in the food tray 4 fall out and are collected into the collection drawer. The first tank 5 and the second tank 6 can be further cleaned by the self-cleaning mechanism.

[0053] Preferably, the sliding seat 2 has a cavity and a pair of food tray openings at the top; the food tray 4 is located in the cavity, with its top attached to the sliding seat 2, and when the first groove 5 and the second groove 6 are assembled, the opening of the food tray 4 is exactly connected to the food tray openings.

[0054] The opening and closing assembly includes a bidirectional screw 8 and a servo motor for driving the bidirectional screw 8 to rotate; the first groove 5 and the second groove 6 are respectively threadedly installed on the bidirectional screw 8 in areas with opposite thread directions; they can move towards each other to join or move away from each other to separate under the action of the rotational movement of the bidirectional screw 8 and the limiting action of the sliding seat 2.

[0055] The output end of the servo motor is equipped with an absolute encoder. The absolute encoder is used to monitor and control the direction and angle of the servo motor's output rotation. The servo motor drives the bidirectional screw 8 to rotate forward or backward by a certain angle, so that the first groove 5 and the second groove 6 can move towards each other or move away from each other under the limiting action of the sliding seat 2.

[0056] Preferably, the actuating component includes a stepper motor, a threaded rod, and a slider;

[0057] The slider is slidably installed into the groove opened inside the feeder 1, fixed to the sliding seat 2, and threadedly connected to the threaded rod; the end of the threaded rod is shaft-connected to the output end of the stepper motor.

[0058] The output end of the stepper motor is equipped with an absolute encoder. The absolute encoder is used to monitor and control the direction and angle of the stepper motor's output rotation. The stepper motor drives the threaded rod to rotate forward or backward by a certain angle, which causes the sliding seat 2 to drive a pair of feed trays 4 to slide out or slide back from the feeding outlet 38 opened on the front side of the feeder 1.

[0059] Preferably, the collection drawer includes an outer drawer 14, an inner box 15, a pressure sensor 16, and a separation partition 17;

[0060] The outer drawer 14 is slidably connected to the sliding seat 2 and can be slidably extended or slidably retracted through the maintenance opening 21 on the rear side of the feeder 1; the inner box 15 is inserted into the outer drawer 14, and a pressure sensor 16 for weighing is provided between its bottom and the outer drawer 14.

[0061] When the waste collected in the inner box 15 reaches a certain weight, the outer drawer 14 can be easily pulled out from the maintenance opening 21, and the inner box 15 can be taken out from the outer drawer 14 to remove the waste in the inner box 15; the maintenance opening 21 can also be used for the maintenance of the self-cleaning mechanism.

[0062] Preferably, the outer drawer 14 is provided with a handle groove 19 on the rear side, and at least one of the outer sides, either the left or right side, is provided with a magnetic block. The magnetic block provided on the outer drawer 14 is magnetically attracted to the corresponding magnetic block provided in the sliding seat 2.

[0063] When the outer drawer 14 is inside the feeder 1, it can be fixed by magnetic attraction between the magnetic block on its outer side and the corresponding magnetic block on the inner side of the feeder 1. In addition, the user can easily pull the outer drawer 14 out of the feeder 1 or push it into the feeder 1 by applying force to the handle groove 19.

[0064] Example 2

[0065] In conjunction with Example 1, such as Figure 4 As shown, in a further preferred embodiment, a sealing ring is fixed at the splicing position of either the first groove 5 or the second groove 6, and an arc-shaped groove that mates with the sealing ring is opened at the splicing position of the other groove.

[0066] When the first tank 5 and the second tank 6 are assembled, they compress the sealing ring, thereby achieving a sealed connection between the first tank 5 and the second tank 6 and preventing leakage from the food tray 4.

[0067] like Figure 1 As shown, in a further preferred embodiment, a motion sensor 36 and a camera 37 that are connected to the feeding mechanism are provided on the front side of the feeder 1 above the feeding outlet 38;

[0068] The motion sensor 36 and camera 37 can intelligently sense the pet's eating status and record images, providing pet owners with more reassuring feeding management functions.

[0069] like Figure 4 As shown, in a further preferred embodiment, the inner box 15 is provided with a detachable partition 17 covering the cross-section, and the partition 17 is densely covered with filter holes.

[0070] The separation partition 17 is used to separate food residue and drinking water, achieving dry and wet separation, avoiding soaking and fermentation of food residue, reducing bacterial growth, and facilitating the handling of food residue.

[0071] Example 3

[0072] Combining Examples 1 and 2, such as Figure 3 As shown, the most preferred self-cleaning mechanism includes an electric push rod 22, a lifting plate 23 with a water cavity inside, and a high-pressure flushing assembly; the water cavity is connected to a water source, the electric push rod 22 is installed and fixed inside the feeding machine 1, and its output end is installed and connected to the lifting plate 23, which can drive the lifting plate 23 to rise or fall;

[0073] The high-pressure flushing assembly includes a spray bar 25, a rotating liquid supply pipe 27, a connecting gear ring 28, a motor 29, and a pinion 30;

[0074] The spray bar 25 is a hollow arc-shaped rod structure corresponding to the shape of the feed tray 4. A pair of spray bars 25 are respectively arranged above a pair of feed trays 4, and spray holes 26 facing the feed tray 4 are densely distributed on them. The spray bar 25 is rotatably connected to the lifting plate 23 through the rotating liquid supply pipe 27 and communicates with the water chamber.

[0075] Motor 29 is mounted and fixed on lifting plate 23, and a connecting gear ring 28 is mounted and fixed on its output end. The connecting gear ring 28 meshes with a small gear 30 fixed on the outside of the rotating liquid supply pipe 27.

[0076] When the self-cleaning mechanism cleans the food tray 4, the electric push rod 22 first drives the lifting plate 23 to descend until the lifting plate closes the opening of the food tray. At this time, the spray rod 25 enters the food tray 4. Then, the motor 29 drives the spray rod 25 to rotate through the pinion 30, the connecting gear ring 28 and the rotating liquid supply pipe 27 in sequence. At the same time, the water supply flows through the water chamber, the rotating liquid supply pipe 27 and the spray pipe 25 in sequence, and is sprayed out from the spray hole 26 to perform high-pressure rinsing on the inside of the food tray 4 in the separated state, so that the food residue and saliva attached to the food tray 4 are separated from the food tray 4 and flow into and are collected in the inner box 15 with the cleaning water.

[0077] Preferably, the bidirectional screws 8 in the pair of opening and closing components are fixed by a shaft, and the pair of opening and closing components preferably share the same servo motor; this can improve the consistency of the actions of assembling and separating the feed trays 4, and help control the equipment cost.

[0078] Preferably, both the food tray 4 and the lifting plate 23 are equipped with ultraviolet sterilization lamps at their bottoms; the ultraviolet sterilization lamp at the bottom of the lifting plate 23 is used to sterilize the food tray 4 after rinsing with ultraviolet light, and the ultraviolet sterilization lamp at the bottom of the food tray 4 is used to sterilize the inside of the inner box 15 to inhibit the growth of bacteria.

[0079] like Figure 7 As shown, the automatic feeding device of Example 3 operates in the following manner:

[0080] In the first process, the push component drives the sliding seat 2 to slide out, exposing the food tray 4 to the outside of the feeder 1 for the pet to eat.

[0081] In the second process, the component drives the sliding seat 2 to slide back until the feed tray 4 is located below the self-cleaning mechanism.

[0082] In the third process, the opening and closing components drive the first tank 5 and the second tank 6 to move in opposite directions and separate them, causing the food and drinking water remaining in the food tray 4 to fall into the inner box 15. The separation partition 17 separates the food residue and wastewater through the filter holes. At the same time, the self-cleaning mechanism performs high-pressure rinsing and cleaning on the food tray 4. After the high-pressure rinsing and cleaning is completed, the ultraviolet sterilization lamp sterilizes the food tray 4 and the inner box 15.

[0083] In process four, the opening and closing components drive the first tank 5 and the second tank 6 to move towards each other and assemble. The feeding mechanism feeds food and drinking water quantitatively into a pair of food trays 4 through the discharge pipe 34 and the water discharge pipe 35, respectively.

[0084] During the cycle of process one through four, the pressure sensor 16 continuously monitors the weight of the inner box 15 and prompts the owner to remove the waste material from the inner box 15 when the inner box 15 reaches the set weight.

[0085] More preferably, the triggering method for process one is one of the following two methods:

[0086] 1) Set the feeding time using a timer switch, and trigger process one according to the feeding time;

[0087] 2) After process four is completed, when the motion sensor 36 detects that the pet is approaching, process one is triggered.

[0088] Furthermore, the triggering method for process two is one of the following two methods:

[0089] 1) Once the end state of process one is maintained until the set feeding time is reached, process two is triggered.

[0090] 2) The motion sensor 36 detected that the pet had left.

[0091] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0092] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic pet food and water feeding device, comprising a feeder (1), wherein the feeder is provided with a pair of food trays (4), and a discharge pipe (34) and a water discharge pipe (35) are respectively provided above the pair of food trays (4) for quantitatively dispensing food or drinking water into the food trays (4) under the action of the feeding mechanism, characterized in that: It is also equipped with a sliding seat (2) and a self-cleaning mechanism; The sliding seat (2) is slidably installed at the bottom of the feeder (1) and equipped with a pushing component. A pair of feed trays (4) are installed and connected to the sliding seat (2), and can slide out or slide back from the feeding outlet (38) opened on the front side of the feeder (1) under the drive of the pushing component. The self-cleaning mechanism for cleaning the feed trays (4) is installed inside the feeder (1). When the sliding seat (2) is in the retracted state, the self-cleaning mechanism is located directly above the pair of feed trays (4).

2. The automatic pet food and water feeding device according to claim 1, characterized in that: The self-cleaning mechanism includes a high-pressure rinsing assembly for high-pressure rinsing the food tray (4); The food tray (4) is composed of a first trough (5) and a second trough (6) arranged symmetrically, and is equipped with an opening and closing component for driving the first trough (5) and the second trough (6) to move towards each other to join or move away from each other to separate. The food tray (4) is provided with a collection drawer below it for collecting leftover food, drinking water and rinsing water.

3. The automatic pet food and water feeding device according to claim 2, characterized in that: The sliding seat (2) has a cavity and a pair of food tray openings at the top; the food tray (4) is located in the cavity and is set to fit the sliding seat (2) at the top, and when the first groove (5) and the second groove (6) are assembled, the opening of the food tray (4) is exactly connected to the food tray openings; The opening and closing assembly includes a bidirectional screw (8) and a servo motor for driving the bidirectional screw (8) to rotate; the first groove (5) and the second groove (6) are respectively threadedly installed on the bidirectional screw (8) in areas with opposite thread directions; they can move towards each other to join or move away from each other to separate under the action of the rotation of the bidirectional screw (8) and the limiting action of the sliding seat (2).

4. The automatic pet food and water feeding device according to claim 2, characterized in that: The self-cleaning mechanism also includes a lifting plate (23) with an internal water cavity, which is connected to a water source; The high-pressure flushing assembly includes a spray bar (25), a rotating liquid supply pipe (27), a connecting gear ring (28), a motor (29), and a pinion (30). The spray rod (25) is a hollow arc-shaped rod structure corresponding to the shape of the feed tray (4). A pair of spray rods (25) are respectively arranged above a pair of feed trays (4), and spray holes (26) facing the feed tray (4) are densely distributed on them. The spray rod (25) is rotatably connected to the lifting plate (23) through the rotating liquid supply pipe (27) and communicates with the water cavity. The motor (29) is mounted and fixed on the lifting plate (23), and the connecting gear ring (28) is mounted and fixed on its output end. The connecting gear ring (28) meshes with the pinion (30) fixed outside the rotating liquid supply pipe (27).

5. The automatic pet food and water feeding device according to claim 4, characterized in that: The self-cleaning mechanism also includes an electric push rod (22). The electric push rod (22) is installed and fixed inside the feeding machine (1), and its output end is installed and connected to the lifting plate (23), which can drive the lifting plate (23) to rise or fall.

6. The automatic pet food and water feeding device according to claim 2, characterized in that: The collection drawer includes an outer drawer (14), an inner box (15), a pressure sensor (16), and a separation partition (17). The outer drawer (14) is slidably connected to the sliding seat (2) and can be slidably extended or slidably retracted through the maintenance opening (21) on the rear side of the feeder (1); the inner box (15) is inserted into the outer drawer (14) and the pressure sensor (16) for weighing is provided between its bottom and the outer drawer (14). The inner box (15) is covered with a detachable partition (17) with filter holes densely arranged on the partition (17).

7. The automatic pet food and water feeding device according to claim 6, characterized in that: The outer drawer (14) is fixedly provided with a handle groove (19) on the rear side, and at least one of the outer sides, either the left or right side, is provided with a magnetic block. The magnetic block provided on the outer drawer (14) is magnetically attracted to the corresponding magnetic block provided in the sliding seat (2).

8. The automatic pet food and water feeding device according to claim 1, characterized in that: The actuation assembly includes a stepper motor, a threaded rod, and a slider; The slider is slidably installed into the groove opened inside the feeder (1), fixed to the sliding seat (2), and threadedly connected to the threaded rod; the end of the threaded rod is shaft-connected to the output end of the stepper motor.

9. An automatic pet food and water feeding device according to any one of claims 2-4 or 6-7, characterized in that: A sealing ring is fixed at the splicing position of either the first groove (5) or the second groove (6), and an arc-shaped groove that mates with the sealing ring is opened at the splicing position of the other groove. The feeder (1) is provided with a motion sensor (36) and a camera (37) above the feeding outlet (38) on the front side, which are connected to the feed mechanism.

10. The automatic pet food and water feeding device according to claim 5, characterized in that: Both the food tray (4) and the lifting plate (23) are equipped with ultraviolet sterilization lamps at their bottoms.

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