Automatic litter supplementing cat litter basin

Abstract

The invention relates to an automatic litter supplementing cat litter basin which comprises a basin body, a shell and an opening and closing device, a litter cavity is formed in the basin body, a storage cavity is formed in the shell, a discharging opening is formed in the side face of the shell and communicated with the lowest position of the storage cavity and the litter cavity, and the opening and closing device is installed on the shell and can open or close the discharging opening. The discharging port is formed in the side face of the shell, so that sand can fall off from the side face of the shell, the shell is allowed to be placed or fixed to the side of the basin body and does not need to be arranged at the top of the basin body, and the height of the sand cavity can be prevented from being compressed.

Description

Technical Field

[0001] The invention relates to the field of pet products, in particular to an automatic cat litter box. Background Art

[0002] Cat litter boxes are used to store cat litter for pet cats to excrete. For many pet owners, adding cat litter manually is inefficient, and sometimes it is impossible to add cat litter to the cat litter box in time. After the cat litter in the cat litter box has reached saturation in absorbing water and gas, the living environment will still have an unpleasant odor, which will have a certain impact on the health of pets and people in the long run.

[0003] The existing automatic litter replenishing device for replenishing cat litter in the cat litter box is basically arranged directly above the cat litter box. Such arrangement may cause the overall height of the cat litter box to be higher or the usable space inside the cat litter box to be smaller, which may affect the pet cat's toileting. Summary of the invention

[0004] In view of this, the present invention provides an automatic litter-replenishing cat litter box, which is used to solve the problem in the prior art that the existence of the litter-replenishing device affects the use of the internal space of the cat litter box.

[0005] In order to achieve one, part, or all of the above purposes or other purposes, the present invention proposes:

[0006] An automatic cat litter box comprising:

[0007] A basin body, wherein a sand cavity is arranged in the basin body;

[0008] The shell is arranged beside the basin body, a storage cavity is arranged in the shell, a discharge port is opened on the side of the shell, and the discharge port is connected with the lowest point of the storage cavity and the sand cavity;

[0009] The opening and closing device is installed on the shell and can open or close the discharge port.

[0010] Preferably, the storage cavity has an inclined cavity bottom wall and cavity side walls arranged around the cavity bottom wall, the discharge port is connected to the cavity side wall, and the side of the cavity bottom wall close to the discharge port is lower than the side away from the discharge port.

[0011] Preferably, the opening and closing device includes an opening and closing plate and a driving member, the opening and closing plate is slidably connected to the shell, and the driving member is installed in the shell and drivingly connected to the opening and closing plate to enable the opening and closing plate to open or close the discharge port.

[0012] Preferably, the opening and closing plate is arranged in the storage cavity, and the opening and closing plate slides from bottom to top to close the discharge port.

[0013] Preferably, the driving member comprises a driving motor and a connecting rod, wherein the driving motor is installed in the housing, the driving motor has an output shaft, the first end of the connecting rod is connected to the output shaft, the second end of the connecting rod is provided with a connecting shaft, and the driving motor can drive the second end of the connecting rod to rotate around the first end thereof;

[0014] The opening and closing plate is provided with a connecting hole, which extends transversely, and the connecting shaft is inserted into the connecting hole and can slide along the connecting hole.

[0015] Preferably, an installation cavity is also provided on the shell, and the drive motor and the connecting rod are both arranged in the installation cavity; the installation cavity and the storage cavity are connected through a mounting hole, and the opening and closing plate slides vertically in the mounting hole so that the opening and closing plate can extend into the installation cavity and connect with the connecting rod.

[0016] Preferably, a sliding limit boss is provided in the storage cavity, and the opening and closing plate can abut against the sliding limit boss, and when the opening and closing plate abuts against the sliding limit boss, the opening and closing plate closes the discharge port.

[0017] Preferably, two guide rails are further provided in the storage cavity, and the two guide rails are respectively arranged on both sides of the discharge port. Both guide rails are provided with slide grooves, and the slide grooves are connected to the mounting holes. The two sides of the opening and closing plate slide in the slide grooves of the two guide rails respectively.

[0018] Preferably, the housing comprises a sand storage bin and a fixed base, the storage cavity, the discharge port and the opening and closing device are all arranged on the sand storage bin, and the sand storage bin is detachably mounted on the fixed base;

[0019] The basin body includes a peripheral side wall and a mounting edge arranged on the peripheral side wall, the peripheral side wall encloses a sand cavity, the sand storage bin and the fixed base jointly clamp the mounting edge, so that the shell is installed on the peripheral side wall, and the fixed base can be against the ground.

[0020] Preferably, the bottom of the sand storage bin is plugged into the fixed base in an interference fit manner.

[0021] Preferably, a sand replenishing port is opened on the peripheral side wall, and a discharge channel connected to the discharge port is provided on the sand storage bin. The discharge channel passes through the sand replenishing port and extends in a direction away from the sand storage bin, and the discharge channel is arranged to be inclined downward.

[0022] Preferably, the basin body includes a sand basin and a top shell, which together form a sand cavity, and the surrounding side walls are composed of the side walls of the sand basin and the side walls of the top shell; the sand replenishing port is opened on the side wall of the top shell, and the mounting edge is arranged on the side wall of the sand basin.

[0023] Preferably, a control module and a first electrical connection module electrically connected to the control module are provided on the basin body, the first electrical connection module is located on the mounting edge, and a second electrical connection module electrically connected to the opening and closing device is installed on the sand storage bin;

[0024] When the sand storage bin and the fixed base are clamped together on the mounting edge, the first electrical connection module and the second electrical connection module are electrically connected to electrically connect the control module to the opening and closing device.

[0025] Preferably, the sand storage bin is also provided with an abutment edge, the second electrical connection module is arranged on the abutment edge, and a clamping space for clamping the mounting edge is formed between the abutment edge and the fixed base, so that the first electrical connection module and the second electrical connection module can abut against each other in the clamping space.

[0026] Implementing the embodiments of the present invention will have the following beneficial effects:

[0027] After adopting the above-mentioned automatic sand-replenishing cat litter box, a discharge port is opened on the side of the shell so that the shell can drop sand from the side, thereby allowing the shell to be placed or fixed on the side of the basin body without being set on the top of the basin body, thereby avoiding compressing the height of the sand chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the overall appearance of a cat litter box according to an embodiment, wherein the shell is located beside the litter box body;

[0030] Figure 2 The figure is a schematic diagram of the overall structure of an automatic sand replenishing device according to an embodiment.

[0031] Figure 3 It is an exploded assembly schematic diagram of an automatic sand replenishing device according to an embodiment, wherein a sand storage bin and a fixed base are shown;

[0032] Figure 4 A schematic diagram of a shell cross-section structure of an embodiment Figure 1 ;

[0033] Figure 5 A schematic diagram of a shell cross-section structure of an embodiment Figure 2 ;

[0034] Figure 6 A schematic diagram of a shell cross-section structure of an embodiment Figure 3 ;

[0035] Figure 7 It is a schematic diagram of the explosion assembly structure of an opening and closing device according to one embodiment;

[0036] Figure 8It is a schematic diagram of the structure of an opening and closing device according to an embodiment;

[0037] Fig. 9 A schematic diagram of the explosion assembly of a cat litter box according to an embodiment Figure 1 ;

[0038] Fig.10 A schematic diagram of the explosion assembly of a cat litter box according to an embodiment Figure 2 ;

[0039] Fig.11 A schematic diagram of the connection structure between a housing and a mounting edge according to an embodiment;

[0040] in:

[0041] Shell 1, sand storage bin 101, fixed base 102, cover plate 103, storage cavity 11, side 12 of shell, mounting cavity 13, mounting hole 14, sliding limit boss 15, guide rail 16, discharge channel 17, cavity bottom wall 111, cavity side wall 112, discharge port 121, slide groove 161, side 1111 of cavity bottom wall 111 close to discharge port 121, side 1112 of cavity bottom wall 111 away from discharge port 121, second electrical connection module 1011, abutting edge 1012, clamping space 100;

[0042] Opening and closing device 2, opening and closing plate 21, driving member 22, connecting hole 211, driving motor 221, connecting rod 222, output shaft 2211, first end 2221, second end 2222, connecting shaft 2223;

[0043] Basin body 3, sand basin 301, top shell 302, sand cavity 30, mounting edge 31, control module 32, first electrical connection module 33, peripheral side wall 34, side wall 3010 of sand basin, side wall 3020 of top shell, sand replenishing port 3021;

[0044] The movement direction of the connecting shaft is V, the upward sub-movement is X1, and the rightward sub-movement is X2. DETAILED DESCRIPTION

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0046] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0048] See attached Figures 1 to 11 The present invention provides an automatic cat litter box, which includes a box body 3 and an automatic sand replenishing device. A sand cavity 30 is provided in the box body 3, and the sand cavity 30 is used for cats to use the toilet.

[0049] The automatic sand replenishing device includes a shell 1 and an opening and closing device 2. A storage chamber 11 is provided in the shell 1. The storage chamber 11 is used to store clean cat litter. A discharge port 121 is provided on the side 12 of the shell 1. The discharge port 121 connects the lowest point of the storage chamber 11 with the outside. When the shell 1 is installed on the basin body 3, the discharge port 121 connects the storage chamber 11 and the sand chamber 30. Specifically, the storage chamber 11 has a cavity bottom wall 111 with an inclined arrangement and a cavity side wall 112 arranged around the cavity bottom wall 111. The discharge port 121 is connected to the cavity side wall 112. Figure 3 As shown, the side 1111 of the cavity bottom wall 111 close to the discharge port 121 is lower than the side 1112 away from the discharge port 121, so that the cat litter in the storage cavity 11 can gather to the lowest point of the sand storage cavity 30, which is used to prevent cat litter from remaining in the storage cavity 11. Furthermore, the cavity bottom wall 111 is designed to be in the shape of a funnel that gathers to the discharge port 121. The opening and closing device 2 is mounted on the housing 1, and is used to open or close the discharge port 121. When the opening and closing device 2 opens the discharge port 121, the cat litter will flow out from the discharge port 121 to the outside, and then the cat litter will fall into the sand cavity 30 until the opening and closing device 2 closes the discharge port 121 again.

[0050] As attached Figure 8 As shown, since the automatic sand replenishing device has a discharge port 121 on the side 12 of the shell 1, the automatic sand replenishing device can discharge sand from its side 12, thereby allowing the automatic sand replenishing device to be placed or fixed on the side of the basin body 3 without being set above the basin body 3, thereby avoiding compressing the height of the sand chamber 30, which is used as the usable space inside the cat litter box.

[0051] On the other hand, the automatic sand replenishing device is detachably installed on the side of the basin body 3. When the cat litter box is packaged and transported, the automatic sand replenishing device can be removed and placed in the sand cavity 30 inside the cat litter box for packaging and transportation, and the transportation cost is not additionally increased.

[0052] For the structure of the opening and closing device 2, see the attached Figures 3 to 7 In one embodiment, the opening and closing device 2 includes an opening and closing plate 21 and a driving member 22. The opening and closing plate 21 is slidably connected to the housing 1. The driving member 22 is installed in the housing 1 and is drivingly connected to the opening and closing plate 21, so that the opening and closing plate 21 opens or closes the discharge port 121. The opening and closing plate 21 can slide on the outer wall of the housing 1 or on the inner wall of the storage chamber 11; the driving member 22 can be a mechanism driven by a motor and a connecting rod 222, a mechanism driven by a motor and a gear, or directly an electric push rod, which can drive the opening and closing plate 21 to slide on a plane.

[0053] If the opening and closing plate 21 adopts a structure in which the discharge port 121 is closed by sliding downward, the opening and closing plate 21 needs to cooperate with the cavity bottom wall 111 to squeeze and crush the cat litter when it moves downward and closes the discharge port 121, which places a heavy load on the driver 22 and easily causes the discharge port 121 to be incompletely closed. In the present embodiment, the opening and closing plate 21 is slidably mounted on the inner wall of the storage cavity 11, and the opening and closing plate 21 slides from bottom to top to close the discharge port 121. Therefore, when the opening and closing plate 21 moves upward, the cat litter located above it can be lifted up without crushing the cat litter, which places a smaller load on the driver 22 and can prevent the opening and closing plate 21 from being stuck by the cat litter and being unable to completely close the discharge port 121. In addition, the driver 22 is located below the opening and closing plate 21 and is not in the storage cavity 11, which can prevent the existence of the cat litter from affecting the operation of the driver 22. At the same time, the opening and closing plate 21 and the driving member 22 are both located inside the housing 1 , which can prevent external factors from interfering with the operation of the opening and closing device 2 .

[0054] Furthermore, the present embodiment adopts a mechanism in which a motor cooperates with a connecting rod 222 to drive the opening and closing plate 21. Specifically, the driving member 22 includes a driving motor 221 and a connecting rod 222. The driving motor 221 is installed in the housing 1. The driving motor 221 has an output shaft 2211. The first end 2221 of the connecting rod 222 is connected to the output shaft 2211. The second end 2222 of the connecting rod 222 is provided with a connecting shaft 2223. The driving motor 221 can drive the second end 2222 of the connecting rod 222 to rotate around its first end 2221. The opening and closing plate 21 is provided with a connecting hole 211, which extends laterally. The connecting shaft 2223 is inserted into the connecting hole 211 and can slide along the connecting hole 211. As shown in the attached figure Figure 7As shown, when the output shaft 2211 rotates, the connecting rod 222 rotates synchronously, so that the connecting shaft 2223 makes a circular motion around the output shaft 2211 in the direction V. At this time, the connecting shaft 2223 has an upward sub-motion X1 and a rightward sub-motion X2. The upward sub-motion X1 drives the opening and closing plate 21 to slide upward, while the rightward sub-motion X2 is manifested as the connecting shaft 2223 sliding to the right in the connecting hole 211, which is mainly used to eliminate the rightward displacement of the opening and closing plate 21, so that the opening and closing plate 21 can only perform linear motion in the vertical direction.

[0055] For further information, see Appendix Figure 4 and 5 , a mounting chamber 13 is also provided on the housing 1, and the mounting chamber 13 is located below the storage chamber 11, and the driving motor 221 and the connecting rod 222 are both arranged in the mounting chamber 13. The mounting chamber 13 and the storage chamber 11 are connected through the mounting hole 14, and the opening and closing plate 21 vertically slides in the mounting hole 14, so that the opening and closing plate 21 can be extended into the mounting chamber 13 and connected with the connecting rod 222. The cross-sectional area and shape of the mounting hole 14 are substantially the same as the cross-sectional area and shape of the opening and closing plate 21, so as to prevent the cat litter in the storage chamber 11 from falling from the mounting hole 14 into the mounting chamber 13, and the dust that partially falls into the mounting chamber 13 can be ignored in the working and loading of the driving member 22, and the dust in the mounting chamber 13 can be cleaned regularly.

[0056] In addition, a sliding limit boss 15 may be provided on the cavity side wall 112, and the upper end of the opening and closing plate 21 may abut against the sliding limit boss 15, and when the upper end of the opening and closing plate 21 abuts against the sliding limit boss 15, the opening and closing plate 21 closes the discharge port 121. The sliding limit boss 15 is used to limit the sliding position of the opening and closing plate 21.

[0057] Furthermore, as attached Figure 4 and 5 As shown, two guide rails 16 are also provided on the cavity side wall 112, and the two guide rails 16 are respectively provided on both sides of the discharge port 121, and the two guide rails 16 are provided with a slide groove 161, and the slide groove 161 is connected to the mounting hole 14, and the two sides of the opening and closing plate 21 slide in the slide grooves 161 of the two guide rails 16 respectively, so as to limit the sliding direction of the opening and closing plate 21 by the guide rails 16, and prevent the opening and closing plate 21 from shaking left and right during the sliding process. The guide rails 16 and the sliding limit boss 15 can be used separately or in combination.

[0058] Further, the housing 1 includes a sand storage bin 101 and a fixed base 102, the storage cavity 11, the discharge port 121 and the opening and closing device 2 are all arranged on the sand storage bin 101, and the sand storage bin 101 is detachably mounted on the fixed base 102, specifically, the bottom of the sand storage bin 101 is plugged into the top of the fixed base 102. The basin body 3 includes a peripheral side wall 34 and a mounting edge 31 arranged on the peripheral side wall 34, and the peripheral side wall 34 encloses the sand cavity 30. The sand storage bin 101 and the fixed base 102 jointly clamp the mounting edge 31 to install the automatic sand replenishing device on the basin body 3. Further, the fixed base 102 can be against the ground to support the sand storage bin 101.

[0059] Specifically, an abutting edge 1012 is further provided on the sand storage bin 101 below the discharge channel 17 . When the sand storage bin 101 is plugged into the fixed base 102 , a clamping space 100 for clamping the mounting edge 31 is formed between the abutting edge 1012 and the fixed base 102 .

[0060] Furthermore, a sand filling port 3021 is provided on the peripheral side wall 34, and a discharge channel 17 connected to the discharge port 121 is provided on the sand storage bin 101. The discharge channel 17 passes through the sand filling port 3021 and extends in a direction away from the sand storage bin 202, and the discharge channel 17 is tilted downward. The discharge channel 17 is used to guide the falling direction of the cat litter and determine the falling position of the cat litter, ensuring that the cat litter can fall into the sand cavity 30, and at the same time, it is convenient for the shell 1 to be connected with the basin body 3.

[0061] Furthermore, the basin body 3 includes a sand basin 301 and a top shell 302, the sand basin 301 and the top shell 302 are enclosed together to form a sand cavity 30, and the peripheral side wall 34 is composed of the side wall 3010 of the sand basin 301 and the side wall 3020 of the top shell 302. The sand replenishing port 3021 is opened on the side wall of the top shell 302, and the mounting edge 31 is set on the side wall of the sand basin 301. The top shell 302 can be removed from the sand basin 301, which is mainly convenient for cleaning the sand basin 301. In other embodiments, the top shell 302 may not be provided, so that the top of the sand cavity 30 is not capped.

[0062] In addition, the top of the sand storage bin 101 may be provided with an opening connected to the storage chamber 11, and a cover plate 103 may be hingedly installed at the opening, and the cover plate 103 may close or open the opening. After opening the cover plate 103, the user can add new cat litter to the storage chamber 11.

[0063] Furthermore, the basin body 3 is provided with a control module 32 and a first electrical connection module 33 electrically connected to the control module 32, and the first electrical connection module 33 is located on the upper side of the mounting edge 31. The sand storage bin 101 is provided with a second electrical connection module 1011 electrically connected to the opening and closing device 2, and the second electrical connection module 1011 is specifically provided on the lower side of the abutting edge 1012. When the sand storage bin 101 and the fixed base 102 are clamped together on the mounting edge 31, the first electrical connection module 33 and the second electrical connection module 1011 abut against each other in the clamping space 100 and realize electrical connection, so that the control module 32 is electrically connected to the opening and closing device 2, and the operation of the cat litter basin and the automatic sand replenishing device is uniformly controlled by the control module 32.

[0064] Among them, the control module 32 can be a PCB circuit board, the first electrical connection module 33 can be a pogopin female connector, and the second electrical connection module 1011 corresponds to a pogopin male connector.

[0065] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A cat litter box with automatic sand replenishment, characterized in that: include: A basin body (3), wherein a sand cavity (30) is provided in the basin body (3); A shell (1), the shell being arranged beside the basin body, a storage cavity (11) being arranged inside the shell (1), a discharge port (121) being provided on a side surface (12) of the shell (1), the discharge port (121) being connected to the lowest point of the storage cavity (11) and the sand cavity (30); An opening and closing device (2), wherein the opening and closing device (2) is mounted on the housing (1) and can open or close the discharge port (121).

2. The automatic cat litter box according to claim 1, characterized in that: The storage cavity (11) comprises an inclined cavity bottom wall (111) and a cavity side wall (112) arranged around the cavity bottom wall (111); the discharge port (121) is connected to the cavity side wall (112); a side (1111) of the cavity bottom wall (111) close to the discharge port (121) is lower than a side (1112) of the cavity bottom wall (111) away from the discharge port (121).

3. The automatic cat litter box according to claim 1, characterized in that: The opening and closing device (2) comprises an opening and closing plate (21) and a driving member (22); the opening and closing plate (21) is slidably connected to the housing (1); the driving member (22) is installed in the housing (1) and is drivingly connected to the opening and closing plate (21) so that the opening and closing plate (21) opens or closes the discharge port (121).

4. The automatic cat litter box according to claim 3, characterized in that: The opening and closing plate (21) is arranged in the storage cavity (11), and the opening and closing plate (21) slides from bottom to top to close the discharge port (121).

5. The automatic cat litter box according to claim 3, characterized in that: The driving member (22) comprises a driving motor (221) and a connecting rod (222); the driving motor (221) is installed in the housing (1); the driving motor (221) has an output shaft (2211); a first end (2221) of the connecting rod (222) is connected to the output shaft (2211); a connecting shaft (2223) is provided on the second end (2222) of the connecting rod (222); and the driving motor (221) can drive the second end (2222) of the connecting rod (222) to rotate around the first end (2221) thereof; The opening and closing plate (21) is provided with a connecting hole (211), the connecting hole (211) extends transversely, and the connecting shaft (2223) is inserted into the connecting hole (211) and can slide along the connecting hole (211).

6. The automatic cat litter box according to claim 5, characterized in that: The shell (1) is also provided with an installation cavity (13), and the driving motor (221) and the connecting rod (222) are both arranged in the installation cavity (13); the installation cavity (13) and the storage cavity (11) are connected through a installation hole (14), and the opening and closing plate (21) slides vertically in the installation hole (14), so that the opening and closing plate (21) can extend into the installation cavity (13) and connect with the connecting rod (222).

7. The automatic cat litter box according to claim 1, characterized in that: A sliding limit boss (15) is provided in the storage cavity (11), and the opening and closing plate (21) can abut against the sliding limit boss (15), and when the opening and closing plate (21) abuts against the sliding limit boss (15), the opening and closing plate (21) closes the discharge port (121).

8. The automatic cat litter box according to claim 7, characterized in that: Two guide rails (16) are also arranged in the storage cavity (11), and the two guide rails (16) are respectively arranged on both sides of the discharge port (121). The two guide rails (16) are each provided with a slide groove (161), and the slide groove (161) is connected to the mounting hole (14). The two sides of the opening and closing plate (21) slide in the slide grooves (161) of the two guide rails (16) respectively.

9. The automatic cat litter box according to claim 1, characterized in that: The housing (1) comprises a sand storage bin (101) and a fixed base (102); the storage cavity (11), the discharge port (121) and the opening and closing device (2) are all arranged on the sand storage bin (101); and the sand storage bin (101) is detachably mounted on the fixed base (102); The basin body (3) comprises a peripheral side wall (34) and a mounting edge (31) arranged on the peripheral side wall (34); the peripheral side wall (34) encloses the sand cavity (30); the sand storage bin (101) and the fixed base (102) jointly clamp the mounting edge (31), so that the shell (1) is mounted on the peripheral side wall (34), and the fixed base (102) can be placed against the ground.

10. The automatic cat litter box according to claim 9, characterized in that: The bottom of the sand storage bin (101) is plugged onto the fixed base (102) in an interference fit manner.

11. The automatic cat litter box according to claim 9, characterized in that: The peripheral side wall (34) is provided with a sand replenishing port (3021), and the sand storage bin (101) is provided with a discharge channel (17) connected to the discharge port (121), the discharge channel (17) passes through the sand replenishing port (3021) and extends in a direction away from the sand storage bin (202), and the discharge channel (17) is arranged to be inclined downward.

12. The automatic cat litter box according to claim 11, characterized in that: The basin body (3) comprises a sand basin (301) and a top shell (302); the sand basin (301) and the top shell (302) together enclose the sand cavity (30); the peripheral side wall (34) is composed of the side wall (3010) of the sand basin (301) and the side wall (3020) of the top shell (302); the sand replenishing port (3021) is opened on the side wall (3020) of the top shell (302); and the mounting edge (31) is arranged on the side wall (3010) of the sand basin (301).

13. The automatic cat litter box according to claim 9, characterized in that: The basin body (3) is provided with a control module (32) and a first electrical connection module (33) electrically connected to the control module (32), the first electrical connection module (33) being located on the mounting edge (31), and the sand storage bin (101) is provided with a second electrical connection module (1011) electrically connected to the opening and closing device (2); When the sand storage bin (101) and the fixed base (102) are clamped together on the mounting edge (31), the first electrical connection module (33) and the second electrical connection module (1011) are electrically connected, so that the control module (32) is electrically connected to the opening and closing device (2).

14. The automatic cat litter box according to claim 13, characterized in that: The sand storage bin (101) is also provided with an abutment edge (1012), and the second electrical connection module (1011) is arranged on the abutment edge (1012). A clamping space (100) for clamping the mounting edge (31) is formed between the abutment edge (1012) and the fixed base (102), so that the first electrical connection module (33) and the second electrical connection module (1011) can abut against each other in the clamping space (100).

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