Automatic litter supplementing cat litter basin

Abstract

The utility model 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 arranged in the basin body, a storage cavity is arranged in the shell, a discharge port is arranged on the side surface of the shell, the discharge port is communicated with the lowest position of the storage cavity and the litter cavity, and the opening and closing device is arranged on the shell and can open or close the discharge port. 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 utility model relates to pet products field, especially automatic sand replenishing cat litter basin. BACKGROUND

[0002] Cat litter basin is used for placing cat litter and is used for pet cat to excrete. For many pet owners, manually adding cat litter is low in efficiency, and sometimes cat litter basin cannot be added with cat litter in time, the function of cat litter in cat litter basin to absorb water and adsorb gas reaches saturation, and the living environment still has bad smell, which has certain influence on the health of pets and people for a long time.

[0003] The existing automatic sand replenishing device for cat litter basin is basically arranged above the cat litter basin, which causes the problem of high overall height of the cat litter basin or small use space in the cat litter basin, which may affect pet cat to use the toilet. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides an automatic sand replenishing cat litter basin, which solves the problem that the sand replenishing device in the prior art influences the use of the space in the cat litter basin.

[0005] To achieve one or part or all of the above purposes or other purposes, the utility model provides:

[0006] An automatic sand replenishing cat litter basin comprises:

[0007] A basin body is internally provided with a sand cavity;

[0008] A shell is arranged beside the basin body, the shell is internally provided with a storage cavity, a discharge port is arranged on the side surface of the shell, and the discharge port is communicated with the lowest part of the storage cavity and the sand cavity;

[0009] An 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 a cavity side wall arranged around the cavity bottom wall, the discharge port is communicated 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 comprises an opening and closing plate and a driving piece, the opening and closing plate is slidingly connected to the shell, and the driving piece is installed in the shell and is drivingly connected to the opening and closing plate to make the opening and closing plate open or close the discharge port.

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

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

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

[0015] Preferably, the shell is further provided with a mounting cavity, and the driving motor and the connecting rod are arranged in the mounting cavity; the mounting cavity and the storage cavity are communicated through the mounting hole, and the opening and closing plate vertically slides in the mounting hole so that the opening and closing plate can extend into the mounting cavity and be connected with the connecting rod.

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

[0017] Preferably, the storage cavity is further provided with two guide rails, the two guide rails are arranged on two sides of the discharge port respectively, and the two guide rails are both provided with a sliding groove communicated to the mounting hole, and the two sides of the opening and closing plate slide in the sliding grooves of the two guide rails respectively.

[0018] Preferably, the shell comprises a sand storage bin and a fixed base, the storage cavity, the discharge port and the opening and closing device are arranged on the sand storage bin, and the sand storage bin is detachably installed on the fixed base.

[0019] The basin body comprises a circumferential side wall and a mounting rim arranged on the circumferential side wall, the circumferential side wall is enclosed to form a sand cavity, and the sand storage bin and the fixed base jointly clamp the mounting rim so that the shell is installed on the circumferential side wall, and the fixed base can abut against the ground.

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

[0021] Preferably, the circumferential side wall is provided with a sand supplementing port, the sand storage bin is provided with a discharge channel communicated with the discharge port, the discharge channel passes through the sand supplementing port and extends away from the sand storage bin, and the discharge channel is arranged in a downward inclination.

[0022] Preferably, the basin body comprises a sand basin and a top shell, the sand basin and the top shell jointly enclose to form a sand cavity, and the circumferential side wall is jointly composed of a side wall of the sand basin and a side wall of the top shell; the sand supplementing port is arranged on the side wall of the top shell, and the mounting rim is arranged on the side wall of the sand basin.

[0023] Preferably, the basin body is provided with a control module and a first electric connection module electrically connected with the control module, the first electric connection module is located on the mounting rim, and the sand storage bin is provided with a second electric connection module electrically connected with the opening and closing device.

[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 enable the control module to be electrically connected with the opening and closing device.

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

[0026] The embodiment of the present application has the following beneficial effects:

[0027] After the automatic sand replenishing litter box is adopted, the discharge port is arranged on the side of the shell, the shell can drop sand from the side, and therefore the shell can be placed or fixed beside the basin body, without being arranged on the top of the basin body, so that the height of the sand cavity can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 It is an overall appearance schematic diagram of the litter box of one embodiment, in which the shell is shown beside the basin body;

[0030] Figure 2 It is an overall structure schematic diagram of the automatic sand replenishing device of one embodiment.

[0031] Figure 3 It is an explosion assembly schematic diagram of the automatic sand replenishing device of one embodiment, in which the sand storage bin and the fixed base are shown;

[0032] Figure 4 It is a shell cross-sectional structure schematic diagram of one embodiment Figure 1 ;

[0033] Figure 5 It is a shell cross-sectional structure schematic diagram of one embodiment Figure 2 ;

[0034] Figure 6 It is a shell cross-sectional structure schematic diagram of one embodiment Figure 3 ;

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

[0036] Figure 8Structure diagram of opening and closing device of one embodiment;

[0037] Figure 9 Structure diagram of explosion assembly of cat litter basin of one embodiment Figure 1 ;

[0038] Figure 10 Structure diagram of explosion assembly of cat litter basin of one embodiment Figure 2 ;

[0039] Figure 11 Structure diagram of connection between shell and mounting rim of one embodiment;

[0040] Wherein:

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

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

[0043] The basin body 3, the sand basin 301, the top shell 302, the sand cavity 30, the mounting rim 31, the control module 32, the first electric connection module 33, the peripheral side wall 34, the side wall 3010 of the sand basin, the side wall 3020 of the top shell, the sand supplement port 3021;

[0044] The movement direction V of the connecting shaft, the upward partial movement X1, the rightward partial movement X2. DETAILED DESCRIPTION

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the description herein and the claims of the application and the above description of the drawings herein is not intended to be complete descriptions of all aspects of the application but rather intended to provide an enabling description of one or more embodiments thereof; terminology from the description of the application and the claims of the application and the above description of the drawings is intended to be given the fullest reasonable scope consistent with the context of the several embodiments of the application.

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

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

[0048] See appendix Figures 1 to 11 This utility model proposes an automatic litter box, which includes a box body 3 and an automatic litter replenishing device. The box body 3 is provided with a litter cavity 30, which is used for cats to use the toilet.

[0049] The automatic litter replenishment device includes a housing 1 and an opening / closing device 2. The housing 1 contains a storage chamber 11 for storing clean cat litter. A discharge port 121 is provided on the side 12 of the housing 1, connecting the lowest point of the storage chamber 11 to the outside. When the housing 1 is installed on the basin 3, the discharge port 121 connects the storage chamber 11 and the litter chamber 30. Specifically, the storage chamber 11 has an inclined bottom wall 111 and a side wall 112 surrounding the bottom wall 111. The discharge port 121 connects to the side wall 112, as shown in the attached diagram. Figure 3 As shown, the side 1111 of the bottom wall 111 closest to the outlet 121 is lower than the side 1112 furthest from the outlet 121, allowing the cat litter in the storage chamber 11 to gather towards the lowest point of the litter storage chamber 30, preventing cat litter residue in the storage chamber 11. Furthermore, the bottom wall 111 is designed in a funnel shape that gathers towards the outlet 121. An opening / closing device 2 is mounted on the housing 1 to open or close the outlet 121. When the opening / closing device 2 opens the outlet 121, cat litter will flow out from the outlet 121 to the outside, and then fall into the litter chamber 30 until the opening / closing device 2 closes the outlet 121 again.

[0050] As attached Figure 8 As shown, since the automatic litter replenishing device has a discharge port 121 on the side 12 of the housing 1, the automatic litter replenishing device can discharge litter from its side 12. Therefore, the automatic litter replenishing device can be placed or fixed on the side of the basin 3 without having to be set above the basin 3, which avoids compressing the height of the litter chamber 30, which is also the usable space inside the cat litter box.

[0051] On the other hand, the automatic sand supplementing device is detachably mounted beside the basin body 3, and when the cat litter basin is packaged and transported, the automatic sand supplementing device can be detached and placed in the sand cavity 30 inside the cat litter basin to be packaged and transported together, without additional increase in transportation cost.

[0052] For the structure of the opening and closing device 2, refer to the attached Figures 3 to 7 In one embodiment, 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 slidingly connected to the housing 1, and the driving member 22 is installed in the housing 1 and drivingly connected to the opening and closing plate 21 to open or close the discharge port 121. The opening and closing plate 21 can slide on the outer wall of the housing 1 or the inner wall of the storage cavity 11; the driving member 22 can adopt a mechanism of motor cooperating with connecting rod 222 transmission, a mechanism of motor cooperating with gear transmission, or directly adopt an electric push rod, which can drive the opening and closing plate 21 to slide on the plane.

[0053] If the opening and closing plate 21 adopts the structure of sliding downward to close the discharge port 121, when the opening and closing plate 21 moves downward and closes the discharge port 121, it needs to cooperate with the cavity bottom wall 111 to extrude and crush the cat litter, which is larger load to the driving member 22, and the discharge port 121 is prone to incomplete closing. In the embodiment, the opening and closing plate 21 is slidingly installed on the inner wall of the storage cavity 11, and the opening and closing plate 21 slides upward to close the discharge port 121. Therefore, when the opening and closing plate 21 moves upward, the cat litter above it can be lifted up without crushing the cat litter, which is smaller load to the driving member 22, and can prevent the opening and closing plate 21 from being stuck by the cat litter and unable to completely close the discharge port 121. In addition, the driving member 22 is located below the opening and closing plate 21 and the driving member 22 is not in the storage cavity 11, which can prevent the cat litter from affecting the work of the driving member 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 work of the opening and closing device 2.

[0054] Further, the embodiment adopts a mechanism of motor cooperating with connecting rod 222 transmission to drive the opening and closing plate 21, specifically, 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, 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 the first end 2221, 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. As shown in the attached Figure 7As shown, when the output shaft 2211 rotates, the connecting rod 222 rotates synchronously, so that the connecting shaft 2223 moves in a circular motion around the output shaft 2211 in the direction V, at this time, the connecting shaft 2223 has an upward component motion X1 and a rightward component motion X2, the upward component motion X1 drives the opening and closing plate 21 to slide upward, and the rightward component motion X2 is manifested as the connecting shaft 2223 sliding rightward in the connecting hole 211, which is mainly used to eliminate the displacement of the opening and closing plate 21 to the right, so that the opening and closing plate 21 can only move linearly in the vertical direction.

[0055] Further, referring to the drawings, Figure 4 and 5 The housing 1 is also provided with a mounting cavity 13 located below the storage cavity 11, and the driving motor 221 and the connecting rod 222 are arranged in the mounting cavity 13. The mounting cavity 13 and the storage cavity 11 are communicated through a 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 extend into the mounting cavity 13 and be connected with the connecting rod 222. The cross-sectional area and shape of the mounting hole 14 are substantially the same as those of the opening and closing plate 21, which prevents the cat litter in the storage cavity 11 from falling into the mounting cavity 13 through the mounting hole 14, and the dust falling into the mounting cavity 13 has negligible impact on the working of the driving member 22, and the dust in the mounting cavity 13 can be cleaned regularly.

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

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

[0058] Further, the shell 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 arranged on the sand storage bin 101, the sand storage bin 101 is detachably installed on the fixed base 102, specifically, the bottom of the sand storage bin 101 is inserted on the top of the fixed base 102. The basin body 3 comprises a circumferential side wall 34 and a mounting rim 31 arranged on the circumferential side wall 34, and the circumferential side wall 34 is surrounded to form the sand cavity 30. The sand storage bin 101 and the fixed base 102 jointly clamp the mounting rim 31 to install the automatic sand supplementing device on the basin body 3. Further, the fixed base 102 can be placed on the ground to support the sand storage bin 101.

[0059] Specifically, the sand storage bin 101 is further provided with an abutting rim 1012 below the discharge channel 17, and when the sand storage bin 101 is inserted on the fixed base 102, the abutting rim 1012 and the fixed base 102 form a clamping space 100 for clamping the mounting rim 31.

[0060] Further, the circumferential side wall 34 is provided with a sand supplementing opening 3021, the sand storage bin 101 is provided with a discharge channel 17 communicating with the discharge port 121, the discharge channel 17 passes through the sand supplementing opening 3021 and extends away from the sand storage bin 202, and the discharge channel 17 is downwardly inclined. The discharge channel 17 is used to guide the falling direction of the cat litter and determine the falling position of the cat litter, so as to ensure that the cat litter can fall into the sand cavity 30, and also facilitates the butt joint of the shell 1 and the basin body 3.

[0061] Further, the basin body 3 comprises a sand basin 301 and a top cover 302, and the sand basin 301 and the top cover 302 jointly surround to form the sand cavity 30, and the circumferential side wall 34 is jointly composed of the side wall 3010 of the sand basin 301 and the side wall 3020 of the top cover 302. The sand supplementing opening 3021 is arranged on the side wall of the top cover 302, and the mounting rim 31 is arranged on the side wall of the sand basin 301. The top cover 302 can be detached from the sand basin 301, mainly to facilitate cleaning the sand basin 301. In other embodiments, the top cover 302 can also be omitted, so that the top of the sand cavity 30 is not capped.

[0062] In addition, the top of the sand storage bin 101 can be provided with an opening communicating with the storage cavity 11, and a cover plate 103 can be hingedly installed at the opening, and the cover plate 103 can close or open the opening. The user can supplement new cat litter into the storage cavity 11 after opening the cover plate 103.

[0063] Further, the basin 3 is provided with a control module 32 and a first electrical connection module 33 electrically connected with the control module 32, and the first electrical connection module 33 is located on the upper side of the mounting rim 31. The sand storage bin 101 is provided with a second electrical connection module 1011 electrically connected with the opening and closing device 2, and the second electrical connection module 1011 is specifically provided on the lower side of the abutting rim 1012. When the sand storage bin 101 and the fixed base 102 are clamped on the mounting rim 31 together, the first electrical connection module 33 and the second electrical connection module 1011 abut in the clamping space 100 and realize electrical connection, so that the control module 32 is electrically connected with the opening and closing device 2, and the operation of the cat litter basin and the automatic sand supplementing device is 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 female connector, and the second electrical connection module 1011 is a male connector.

[0065] Obviously, the above-described embodiments are only a part of the embodiments of the present application, not all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. An automatic sand replenishing cat litter box, characterized by, Include: Pot (3), the sand cavity (30) is equipped inside the pot (3); Shell (1), the shell is arranged in the side of the pot, the storage cavity (11) is arranged in the shell (1), the side (12) of the shell (1) is provided with discharge port (121), the discharge port (121) is communicated with the lowest place of the storage cavity (11) and the sand cavity (30); Opening and closing device (2), the opening and closing device (2) is installed on the shell (1), and the discharge port (121) can be opened or closed;Wherein, the opening and closing device (2) includes opening and closing plate (21) and driving element (22), the opening and closing plate (21) is slidably connected on the shell (1), the driving element (22) is installed in the shell (1) and is drivenly connected with the opening and closing plate (21), so that the opening and closing plate (21) opens or closes the discharge port (121).

2. The self- sanding litter box of claim 1, wherein, The storage cavity (11) has an inclined cavity bottom wall (111) and a cavity side wall (112) arranged around the cavity bottom wall (111), the discharge port (121) is communicated to the cavity side wall (112), and 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).

3. The self- sanding litter box of claim 1, wherein, 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).

4. The self- sanding litter box of claim 1, wherein, The driving element (22) includes a driving motor (221) and a connecting rod (222), the driving motor (221) is installed in the shell (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), and the driving motor (221) can drive the second end (2222) of the connecting rod (222) to rotate around the first end (2221); The opening and closing plate (21) is provided with a connecting hole (211), the connecting hole (211) extends transversely, the connecting shaft (2223) is inserted into the connecting hole (211) and can slide along the connecting hole (211).

5. The self- sanding litter box of claim 4, wherein, The shell (1) is also provided with a mounting cavity (13), the driving motor (221) and the connecting rod (222) are arranged in the mounting cavity (13);The mounting cavity (13) and the storage cavity (11) are communicated through a 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 extend into the mounting cavity (13) and be connected with the connecting rod (222).

6. The self- sanding litter box of claim 1, wherein, The storage cavity (11) is provided with a sliding limiting boss (15), the opening and closing plate (21) can abut against the sliding limiting boss (15), and when the opening and closing plate (21) abuts against the sliding limiting boss (15), the opening and closing plate (21) closes the discharge port (121).

7. The self- sanding litter box of claim 6, wherein, Two guide rails (16) are arranged in the storage cavity (11), and the two guide rails (16) are arranged on the two sides of the discharge port (121), and the two guide rails (16) are provided with sliding grooves (161), and the two sides of the opening and closing plate (21) are slid in the sliding grooves (161) of the two guide rails (16).

8. The self- sanding litter box of claim 1, wherein, The shell (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 arranged on the sand storage bin (101), and the sand storage bin (101) is detachably installed on the fixed base (102). The basin body (3) comprises a circumferential side wall (34) and a mounting rim (31) arranged on the circumferential side wall (34), the circumferential side wall (34) is enclosed to form the sand cavity (30), the sand storage bin (101) and the fixed base (102) jointly hold the mounting rim (31), so that the shell (1) is installed on the circumferential side wall (34), and the fixed base (102) can be placed on the ground.

9. The self- sanding litter box of claim 8, wherein, The bottom of the sand storage bin (101) is inserted on the fixed base (102) in an interference fit manner.

10. The self- sanding litter box of claim 8, wherein, A sand supplementing port (3021) is arranged on the circumferential side wall (34), the sand storage bin (101) is provided with a discharge channel (17) communicating with the discharge port (121), the discharge channel (17) passes through the sand supplementing port (3021) and extends away from the sand storage bin (101), and the discharge channel (17) is arranged in a downward inclination.

11. The self- sanding litter box of claim 10, wherein, The basin body (3) comprises a sand basin (301) and a top shell (302), the sand basin (301) and the top shell (302) jointly enclose the sand cavity (30), and the circumferential side wall (34) is composed of a side wall (3010) of the sand basin (301) and a side wall (3020) of the top shell (302); the sand supplementing port (3021) is arranged on the side wall (3020) of the top shell (302), and the mounting rim (31) is arranged on the side wall (3010) of the sand basin (301).

12. The self- sanding litter box of claim 8, wherein, The basin body (3) is provided with a control module (32) and a first electric connection module (33) electrically connected with the control module (32), the first electric connection module (33) is located on the mounting rim (31), and the sand storage bin (101) is provided with a second electric connection module (1011) electrically connected with the opening and closing device (2). When the sand storage bin (101) and the fixed base (102) jointly hold the mounting rim (31), the first electric connection module (33) and the second electric connection module (1011) are electrically connected, so that the control module (32) is electrically connected with the opening and closing device (2).

13. The self- sanding litter box of claim 12, wherein, The sand storage bin (101) is further provided with an abutting edge (1012), the second electric connection module (1011) is arranged on the abutting edge (1012), and a clamping space (100) for clamping the mounting edge (31) is formed between the abutting edge (1012) and the fixed base (102), so that the first electric connection module (33) and the second electric connection module (1011) can abut in the clamping space (100).

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