Cat litter box

Abstract

The application provides a cat litter box, which comprises a base, a roller, a garbage box and a driving unit; the roller is rollably connected to the base, the driving unit is installed in the base and is used for driving the roller to rotate relative to the base, and the garbage box is inserted into the base at one side of the roller; an end of a defecation channel is provided with a sealing plate, a lower end of the sealing plate is rotatably connected to the roller at an inner side of an outlet end of the defecation channel, and an upper end of the sealing plate is buckled to the roller at an outer side of the outlet end of the defecation channel; a driving assembly is connected to the inside of the base, and the driving assembly is used for driving the sealing plate to be unlocked from the roller so that the sealing plate is rotated to be opened relative to the roller and the defecation channel is unsealed; the application can avoid the odor generated by the excrement in the garbage box from spreading into the roller through the defecation channel, that is, the air in the roller can be prevented from being polluted by the excrement in the garbage box, and the environment around the cat litter box can be prevented from being polluted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pet products, in particular to a cat litter box. BACKGROUND

[0002] The automatic cat litter box is a device that can automatically separate cat feces and cat litter, generally including a base and a rotating drum, and the cat feces and cat litter are separated by the rotation of the drum, so that the cat litter in the cat litter box can be kept clean. At present, the cat litter box with convenient cat litter replacement is disclosed in Chinese Patent No. CN114793917B. When the cat litter box is used, the cat litter box is rotated by the drum, and the filter screen is arranged at the feces outlet. Only by rotating the drum, the cat feces in the cat litter can be filtered out and collected in the cat feces bin. However, in the structure of the above-mentioned cat litter box, the feces outlet on the drum is always in communication with the cat feces bin. That is, after the cat feces is discharged into the cat feces bin, the odor of the cat feces stored in the cat feces bin will enter the drum through the feces outlet, thereby continuously polluting the air inside the drum, and the odor in the drum will spread outside the drum, that is, the environment around the cat litter box will be polluted. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a cat litter box which can avoid the odor generated by the feces in the garbage bin from spreading into the drum through the feces discharge channel, that is, can avoid the air inside the drum from being polluted by the feces in the garbage bin, and can avoid polluting the environment around the cat litter box.

[0004] The present application provides a cat litter box, which comprises a base, a drum, a garbage bin and a driving unit. The drum is rotatably connected to the base, the driving unit is installed in the base and used to drive the drum to rotate relative to the base, the garbage bin is inserted into the base on one side of the drum, and the garbage bin is used to receive the feces discharged through the feces discharge channel on the inner wall of the drum. The inside of the base is provided with a cavity for connecting the feces discharge channel and the garbage bin. An end of the feces discharge channel is provided with a sealing plate, the lower end of the sealing plate is rotatably connected to the drum inside the outlet end of the feces discharge channel, and the upper end of the sealing plate is buckled to the drum outside the outlet end of the feces discharge channel. The inside of the base is connected with a driving assembly, which is used to drive the sealing plate to unlock the drum to rotate and open the sealing plate relative to the drum and to remove the sealing of the feces discharge channel. When the drum drives the sealing plate to rotate away from the driving assembly, the inner wall of the base is used to push the sealing plate to rotate towards the drum and to buckle to the drum outside the outlet end of the feces discharge channel.

[0005] The present application can avoid the odor generated by the feces in the garbage box from spreading to the drum through the defecation channel, that is, the air inside the drum can be prevented from being polluted by the feces in the garbage box, and the environment around the litter box can be prevented from being polluted.

[0006] In a possible implementation, the upper end of the sealing plate is provided with two elastic buckles arranged in front and back, when the sealing plate rotates towards the side close to the drum, the two elastic buckles are used to buckle with the drum outside the outlet end of the defecation channel to lock the sealing plate and the drum; the driving assembly includes a motor and a rotating rod; the motor is fixed in the base, the rotating rod is rotatably connected in the base, one end of the rotating rod is rotatably connected with the output shaft of the motor, and the outer wall of the rotating rod is fixed with a push block corresponding to the elastic buckle; when the motor drives the rotating rod to rotate, each push block is used to push the elastic buckle at the corresponding position to make the elastic buckle separate from the drum outside the outlet end of the defecation channel.

[0007] In a possible implementation, a rotating disc is coaxially arranged on the outer side wall of the rotating rod, an optical sensor is fixed in the inside of the base, the outer edge of the rotating disc is inserted into the open slot of the optical sensor and gap-fitted with the open slot of the optical sensor, a notch is arranged on the outer edge of the rotating disc, when the notch rotates to the position where the optical sensor is located, the notch is used for the light emitted by the optical sensor to pass through to make the optical sensor conductive, and the optical sensor and the motor are electrically connected with the controller in the litter box.

[0008] In a possible implementation, a support shaft is coaxially arranged on the rear side of the drum, the support shaft is supported on and rotatably connected with the base; an air outlet channel coaxially arranged with the support shaft is formed in the inside of the support shaft, an activated carbon assembly is embedded in the air outlet channel, an air suction assembly is arranged on the rear side of the base, and the activated carbon assembly and the air suction assembly are arranged in front and back correspondence; when the air suction assembly works, the air from the inside of the drum flows through the activated carbon assembly and the air suction assembly in sequence and is discharged to the outside of the litter box.

[0009] In a possible implementation, the activated carbon assembly includes a shell and activated carbon particles filled in the inside of the shell, the front and rear ends of the shell are provided with grid holes, and the shell is embedded in the air outlet channel; the inner side wall of the air outlet channel is tapered from back to front, the shape of the outer side wall of the shell is matched with the shape of the inner side wall of the air outlet channel, and the shell is inserted into the air outlet channel from back to front and tightly fitted with the air outlet channel.

[0010] In a possible implementation, the air suction assembly comprises a fan and a rear cover plate; the rear cover plate is fixed to the rear side of the base, the front side of the rear cover plate is provided with a duct, the fan is arranged inside the duct and fixed to the rear cover plate, and the rear cover plate inside the rear end of the duct is provided with a grid-shaped air outlet hole; the front end of the duct is connected with a grid-shaped protective plate; the outer edge of the protective plate is provided with a rearwardly bent annular connecting portion, the annular connecting portion is sleeved on the front end of the duct, the side wall of the annular connecting portion is circumferentially provided with a plurality of first clamping holes, and the outer wall of the front end of the duct is provided with a first clamping block corresponding to each first clamping hole; each first clamping block is clamped with the corresponding first clamping hole.

[0011] In a possible implementation, the litter box further comprises a sand collecting tray, the sand collecting tray is arranged on the front side of the middle part of the roller and detachably connected with the base, the opening at the upper end of the sand collecting tray is close to the lower edge of the front opening of the roller, and a grid plate is detachably connected to the opening at the upper end of the sand collecting tray; the rear side of the upper end of the sand collecting tray is provided with a circular-arc-shaped flange, the flange extends from front to back to the inside of the front opening of the roller, an arc-shaped and lower-end-opened recess is formed between the flange and the rear side wall of the sand collecting tray, the lower edge of the front opening of the roller extends into the recess and leaves a gap between the recess; a plurality of rolling assemblies are connected to the inner top of the flange and distributed along the circumferential direction of the flange, the rolling assemblies are supported on the lower edge of the front opening of the roller and used for rolling with the roller.

[0012] In a possible implementation, each rolling assembly comprises a pin shaft and a rolling sleeve; the rolling sleeve is sleeved outside the pin shaft and rotationally connected with the pin shaft, both ends of the pin shaft are matched and inserted with the flange and tightly matched, the rolling sleeve is supported on the lower edge of the opening at the front end of the roller and used for rolling with the roller; the width of the front and rear direction of the opening at the upper end of the sand collecting disc gradually increases from the left and right sides of the sand collecting disc to the middle part, and the front side wall of the sand collecting disc gradually expands to the front side from bottom to top, the shape of the grid plate is matched with the shape of the opening at the upper end of the sand collecting disc; a plurality of support ribs are arranged on the inner wall of the sand collecting disc and spaced in the circumferential direction, the grid plate is embedded on the inner side of the opening at the upper end of the sand collecting disc and supported on the upper ends of the plurality of support ribs; a plurality of insertion columns are arranged on the lower end surface of the grid plate, a plurality of insertion sleeves vertically corresponding to the plurality of insertion columns are arranged on the inner bottom of the sand collecting disc, the lower end of each insertion column is inserted into the insertion sleeve at the corresponding position and tightly matched with the insertion sleeve; a connecting plate is arranged on the rear side wall of the lower part of the sand collecting disc, a first insertion slot is formed between the connecting plate and the sand collecting disc and has an open lower end, an insertion plate is arranged at the upper edge of the front side of the base, the insertion plate is inserted into the first insertion slot, the rear side wall of the lower part of the sand collecting disc abuts against the front side wall of the base, and the connecting plate is buckled with the insertion plate; a plurality of second clamping holes are arranged on the connecting plate and spaced in the extension direction of the connecting plate, a second clamping block corresponding to the plurality of second clamping holes is arranged on the rear side of the insertion plate, and each second clamping block is clamped with the second clamping hole at the corresponding position to lock the sand collecting disc and the base.

[0013] In a possible implementation, an ozone sheet is fixed on one side of the inner wall of the cavity, and the ozone sheet is electrically connected with the controller in the cat litter basin; a pair of second insertion slots are arranged on the inner wall of the cavity, the ozone sheet is matched and inserted with the pair of second insertion slots, a support is arranged in the cavity, and the support is fixed with the base and presses the ozone sheet.

[0014] In a possible implementation, the inside of the garbage box is provided with an upper-end-opened storage cavity, and the cat litter basin further comprises a box cover, which is detachably connected to the opening at the upper end of the storage cavity and is used for pressing the bag opening of the garbage bag at the opening at the upper end of the storage cavity; a through hole is arranged on the box cover and used for allowing the feces to pass through and enter the storage cavity; a groove for embedding a fragrance sheet is arranged on the box cover, and a plurality of fragrance expanding holes communicating with the storage cavity are arranged on the bottom of the groove; buckles are arranged at both ends of the box cover, a clamping groove is arranged on the outer wall at each end of the garbage box, and each buckle is buckled with the clamping groove at the corresponding side; the lower end of each buckle is provided with an extension section which is gradually bent outward from top to bottom; and a hand clamping groove is arranged on the bottom of the outer wall of the garbage box. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a first schematic diagram of the three-dimensional structure of the present application;

[0016] Figure 2 It is a second schematic diagram of the three-dimensional structure of the present application;

[0017] Figure 3 The first perspective view of the present application;

[0018] Figure 4 The first perspective view of the present application without part of the base;

[0019] Figure 5 The second perspective view of the present application without part of the base;

[0020] Figure 6 The perspective view of the present application; Figure 4 The enlarged view of A in the perspective view of the present application;

[0021] Figure 7 The perspective view of the present application; Figure 5 The enlarged view of B in the perspective view of the present application;

[0022] Figure 8 The second perspective view of the present application;

[0023] Figure 9 The perspective view of the present application; Figure 8 The enlarged view of C in the perspective view of the present application;

[0024] Figure 10 The perspective view of the present application; Figure 8 The enlarged view of D in the perspective view of the present application;

[0025] Figure 11 The perspective view of the air suction assembly;

[0026] Figure 12 The first perspective view of the present application;

[0027] Figure 13 The perspective view of the present application without the garbage box;

[0028] Figure 14 The perspective view of the present application without the garbage box;

[0029] Figure 15 The perspective view of the present application; Figure 14 The enlarged view of E in the perspective view of the present application;

[0030] Figure 16 The first perspective view of the present application with the garbage box assembled with the box cover;

[0031] Figure 17 The second perspective view of the present application with the garbage box assembled with the box cover;

[0032] Figure 18 The perspective view of the present application with the garbage box disassembled with the box cover;

[0033] Figure 19 is a third perspective view of the exploded structure of the present application;

[0034] Figure 20 is a third perspective view of the exploded structure of the present application;

[0035] Figure 21 is a third perspective view of the exploded structure of the present application; Figure 20 is a third perspective view of the exploded structure of the present application;

[0036] Figure 22 is a first perspective view of the exploded structure of the grid plate and the sand collecting tray;

[0037] Figure 23 is a second perspective view of the exploded structure of the grid plate and the sand collecting tray. DETAILED DESCRIPTION

[0038] First, those skilled in the art should understand that the embodiments are only used to explain the technical principles of the application examples, and are not intended to limit the protection scope of the application examples. Those skilled in the art can make adjustments as needed in order to adapt to specific application occasions.

[0039] In the description of the application examples, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the application examples can be understood according to the specific circumstances.

[0040] In the application examples, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] The application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0042] Reference should be made to Figures 1-23As shown, the embodiment of the present application discloses a cat litter box, which comprises a base 1, a roller 2, a garbage box 3 and a driving unit 4; the roller 2 is rollably connected to the base 1, the driving unit 4 is installed in the base 1 and used to drive the roller 2 to rotate relative to the base 1, the garbage box 3 is inserted into the base 1 at one side of the roller 2, the garbage box 3 is used to receive excrement discharged through an excretion passage 21 on the inner wall of the roller 2, and the base 1 is internally provided with a cavity 11 used to communicate the excretion passage 21 and the garbage box 3; an end of the excretion passage 21 is provided with a sealing plate 5, a lower end of the sealing plate 5 is rotatably connected to the roller 2 at the inner side of the outlet end of the excretion passage 21, and an upper end of the sealing plate 5 is buckled to the roller 2 at the outer side of the outlet end of the excretion passage 21; the base 1 is internally connected with a driving assembly 6, the driving assembly 6 is used to drive the sealing plate 5 to be unlocked from the roller 2 so as to rotate and open the sealing plate 5 relative to the roller 2 and to release the sealing plate 5 from the excretion passage 21; when the roller 2 drives the sealing plate 5 to rotate away from the driving assembly 6, the inner wall of the base 1 is used to push the sealing plate 5 so as to rotate the sealing plate 5 towards the roller 2 and to buckle the sealing plate 5 to the roller 2 at the outer side of the outlet end of the excretion passage 21; the above-mentioned driving unit is a driving unit composed of a driving motor and a gear, the gear is fixed to the output shaft of the driving motor, the gear is engaged with a gear ring at the rear end of the roller, and when the driving motor drives the gear to rotate back and forth, the roller can rotate back and forth under the cooperation of the gear and the gear ring; the driving unit is the prior art in the cat litter box on the market, and thus will not be described herein.

[0043] In work, first, the driving unit drives the roller to rotate to one side by a certain angle (clockwise rotation), at this time, the cat litter in the roller can be filtered through the filter screen in the roller, the clean cat litter after filtering can enter the cat litter temporary storage bin on the inner wall of the roller, and the excrement filtered out of the cat litter can enter the excretion passage, then the driving unit drives the roller to rotate to the other side (counterclockwise rotation), at this time, the clean cat litter temporarily stored in the cat litter temporary storage bin can return to the inner bottom of the roller, and the excrement in the excretion passage can reach the outlet end of the excretion passage (the structure and working process of the above-mentioned roller are the prior art in the cat litter box on the market, and thus will not be described herein); then the driving assembly can drive the sealing plate to be unlocked from the roller so as to rotate and open the sealing plate relative to the roller and to release the sealing plate from the excretion passage, at this time, the excrement at the outlet end of the excretion passage can slide into the garbage box, and then the driving unit can drive the roller to rotate to one side by a certain angle (clockwise rotation) again, that is, the roller can drive the sealing plate to rotate to one side by a certain angle away from the driving assembly, at this time, the inner wall of the base can push the sealing plate so as to rotate the sealing plate towards the roller and to buckle the sealing plate to the roller at the outer side of the outlet end of the excretion passage, that is, to make the sealing plate reseal the outlet end of the excretion passage, finally, the driving unit can drive the roller to rotate to the other side (counterclockwise rotation), through the above steps, the process of discharging the excrement in the roller into the garbage box is completed.

[0044] The upper end of the sealing plate 5 is provided with two elastic buckles 51 which are spaced apart front and back, and when the sealing plate 5 rotates towards the side close to the drum 2, the two elastic buckles 51 are used to buckle with the drum 2 outside the outlet end of the defecation channel 21 to lock the sealing plate 5 and the drum 2; the driving assembly 6 comprises a motor 61 and a rotating rod 62; the driving motor 61 is fixed in the base 1, the rotating rod 62 is rotatably connected in the base 1, one end of the rotating rod 62 is rotatably connected with the output shaft of the motor 61, and the outer wall of the rotating rod 62 is fixed with a push block 621 corresponding to the elastic buckle 51, when the motor 61 drives the rotating rod 62 to rotate, each push block 621 is used to push the elastic buckle 51 at the corresponding position to make the elastic buckle 51 disengage from the drum 2 outside the outlet end of the defecation channel 21; after adopting this structure, under the action of the two elastic buckles, when the sealing plate rotates towards the side close to the drum, the two elastic buckles can buckle with the drum outside the outlet end of the defecation channel to lock the sealing plate and the drum, that is, the sealing plate can be reliably buckled together with the drum outside the outlet end of the defecation channel through the two elastic buckles; when the motor drives the rotating rod to rotate to make each push block push the elastic buckle at the corresponding position, the push block can press the elastic buckle to make the elastic buckle disengage from the drum outside the outlet end of the defecation channel, that is, the unlocking of the sealing plate and the drum is realized.

[0045] A rotating disc 622 is coaxially arranged on the outer side wall of the rotating rod 62, an optical sensor 63 is fixed in the inside of the base 1, the outer edge of the rotating disc 622 is inserted into the open slot of the optical sensor 63 and gap fits with the open slot of the optical sensor 63, a notch 623 is arranged on the outer edge of the rotating disc 622, when the notch 623 rotates to the position where the optical sensor 63 is located, the notch 623 is used for the light emitted by the optical sensor 63 to pass through to make the optical sensor 63 conduct, and the optical sensor 63 and the motor 61 are electrically connected with the controller in the litter box; after adopting this structure, when the motor drives the rotating rod to rotate to make the rotating rod drive the push block to rotate, after the motor drives the rotating rod to rotate one circle, the notch on the rotating disc can be just rotated to the position where the optical sensor is located, at this time, the notch can make the light emitted by the optical sensor to pass through to make the optical sensor conduct, when the optical sensor conducts, the controller in the litter box can control the motor to stop rotating, that is, the motor can control the rotating rod and the push block to just rotate one circle, that is, it can ensure that when the motor drives the rotating rod to rotate, the push block only pushes the elastic buckle once, that is, it can make the driving assembly unlock the sealing plate once each time.

[0046] The rear side of the drum 2 is coaxially provided with a support shaft 22 which is supported on and rotationally connected with the base 1. The inside of the support shaft 22 is formed with an air outlet channel 23 which is coaxially arranged with the support shaft 22, and the air outlet channel 23 is embedded with an activated carbon assembly 7. The rear side of the base 1 is provided with an air suction assembly 8, and the activated carbon assembly 7 and the air suction assembly 8 are arranged in front-to-back correspondence. When the air suction assembly 8 is working, the air from the inside of the drum 2 flows through the activated carbon assembly 7 and the air suction assembly 8 in sequence and is then discharged to the outside of the litter box. By adopting this structure, when the air suction assembly is working, the air from the inside of the drum can flow through the activated carbon assembly and the air suction assembly in sequence and then be discharged to the outside of the litter box. When the air from the inside of the drum flows through the activated carbon assembly, the activated carbon assembly can adsorb the odor in the air from the inside of the drum, so as to achieve the purpose of purifying the air, thereby avoiding the spread of odor in the drum to the outside of the litter box, i.e. avoiding the pollution of the environment around the litter box. In addition, the air in the external environment can be supplemented into the drum through the front end of the drum, so as to achieve the purpose of ventilation and deodorization.

[0047] The activated carbon assembly 7 comprises a shell 71 and activated carbon particles filled in the inside of the shell 71. The front and rear ends of the shell 71 are provided with grid holes 711, and the shell 71 is embedded in the air outlet channel 23. By adopting this structure, when the air suction assembly is working, the air from the inside of the drum can flow through the activated carbon particles in the inside of the shell, and the activated carbon particles can adsorb the odor in the air from the inside of the drum, so as to achieve the purpose of purifying the air, thereby avoiding the spread of odor to the outside of the litter box. In addition, the air in the external environment can be supplemented into the drum through the front end of the drum, so as to achieve the purpose of ventilation and deodorization. The inner side wall of the air outlet channel 23 is gradually inwardly tapered from rear to front to form a conical structure, the shape of the outer side wall of the shell 71 is matched with the shape of the inner side wall of the air outlet channel 23, and the shell 71 is inserted into the air outlet channel 23 from rear to front and tightly fits with the air outlet channel 23. By adopting this structure, the shell can be reliably and tightly fitted with the air outlet channel, so as to effectively avoid the shell from being separated from the air outlet channel when the drum is rotating.

[0048] The air suction assembly 8 comprises a fan 81 and a back cover plate 82; the back cover plate 82 is fixed on the back side of the base 1, the front side of the back cover plate 82 is provided with a wind guide cylinder 821, the fan 81 is arranged inside the wind guide cylinder 821 and fixed with the back cover plate 82, and the back cover plate 82 on the inner side of the rear end of the wind guide cylinder 821 is provided with a grid-shaped air outlet hole 822; by adopting the air suction assembly, when the fan works, the fan can suck the air from the activated carbon assembly, and the air can finally be discharged to the outside of the litter box through the air outlet hole; the front end of the wind guide cylinder 821 is connected with a grid-shaped protection plate 83; by arranging the protection plate, when the back cover plate is removed and the fan is still in the rotating state, the human body can be prevented from accidentally contacting the rotating fan, so that the safety hazard can be eliminated; the outer edge of the protection plate 83 is provided with a rearwardly-bent annular connecting portion 831, the annular connecting portion 831 is sleeved on the front end of the wind guide cylinder 821, a plurality of first clamping holes 832 are circumferentially arranged on the side wall of the annular connecting portion 831, a first clamping block 823 corresponding to each first clamping hole 832 is arranged on the outer wall of the front end of the wind guide cylinder 821, and each first clamping block 823 is clamped and connected with the first clamping hole 832 in the corresponding position; by adopting the structure, after the annular connecting portion is sleeved on the front end of the wind guide cylinder, each first clamping hole can be clamped and connected with the first clamping block in the corresponding position, so that the protection plate can be reliably assembled with the wind guide cylinder.

[0049] The litter box further comprises a sand collecting tray 9 which is detachably connected to the base 1 and located at the front side of the middle part of the drum 2, and the upper end opening of the sand collecting tray 9 is close to the lower edge of the front end opening of the drum 2, and a grating plate 91 is detachably connected to the upper end opening of the sand collecting tray 9; the rear side of the upper end of the sand collecting tray 9 is provided with a circular-arc-shaped flange 92 which extends from front to back to the inner side of the front end opening of the drum 2, and the flange 92 and the rear side wall of the sand collecting tray 9 form an arc-shaped and lower-end-opened cavity 93, the lower edge of the front end opening of the drum 2 extends into the cavity 93 and leaves a gap between the cavity 93; the inner top of the flange 92 is connected with a plurality of rolling assemblies 94 which are distributed along the circumferential direction of the flange 92 and supported on the lower edge of the front end opening of the drum 2 and used for rolling with the drum 2; through the above structure, when the cat litter in the drum is taken away by the cat through the opening at the front side of the drum, the cat litter can fall through the grating plate into the sand collecting tray and be collected by the sand collecting tray, so as to avoid the cat litter directly falling on the ground outside the litter box, thereby bringing convenience to the user and avoiding the waste of cat litter; and under the action of the flange, the flange can guide the cat litter into the sand collecting tray so as to facilitate the sand collecting tray to collect the cat litter; in addition, under the action of the flange, the flange can block the cat litter from entering between the drum and the base, thereby avoiding the situation that the drum and the base are stuck by the cat litter and cannot rotate relatively or produce abnormal sound; in addition, under the support of the rolling assembly, the flange can avoid being collapsed by the cat, so as to ensure that the drum can rotate smoothly relative to the flange.

[0050] Each rolling assembly 94 comprises a pin shaft 941 and a rolling sleeve 942; the rolling sleeve 942 is sleeved on the outside of the pin shaft 941 and is rotationally connected with the pin shaft 941, both ends of the pin shaft 941 are matched and inserted with the flange 92 and are tightly matched, the rolling sleeve 942 is supported on the lower edge of the opening at the front end of the drum 2 and is used for rolling with the drum 2; after the rolling assembly is adopted, the flange can be reliably supported on the lower edge of the opening at the front end of the drum under the action of the rolling sleeve and the pin shaft, and the rolling sleeve can reliably rotate with the drum when the drum rotates relative to the base, the rolling sleeve can support the flange to avoid the collapse of the flange; the width of the opening at the upper end of the sand collecting disc 9 in the front-rear direction gradually increases from the left side to the right side of the sand collecting disc 9 to the middle part, and the front side wall of the sand collecting disc 9 gradually expands to the front side from bottom to top, and the shape of the grid plate 91 is matched with the shape of the opening at the upper end of the sand collecting disc 9; after the structure is adopted, the cat litter falling from the drum and the cat litter falling from the cat can more easily enter the sand collecting disc, that is, the sand collecting disc can more reliably collect the cat litter falling from the drum and the cat litter falling from the cat; a plurality of support ribs 95 are arranged on the inner wall of the sand collecting disc 9 in a circumferential interval, the grid plate 91 is embedded on the inner side of the opening at the upper end of the sand collecting disc 9, and the grid plate 91 is supported on the upper ends of the plurality of support ribs 95; after the structure is adopted, the grid plate can be reliably and conveniently detachably connected at the opening at the upper end of the sand collecting disc; a plurality of insertion columns 911 are arranged on the lower end surface of the grid plate 91, and a plurality of insertion sleeves 96 vertically corresponding to the plurality of insertion columns 911 are arranged on the inner bottom of the sand collecting disc 9, the lower end of each insertion column 911 is inserted into the insertion sleeve 96 at the corresponding position and is tightly matched with the insertion sleeve 96; after each insertion column is matched and inserted with the insertion sleeve at the corresponding position, the grid plate can be further reliably assembled with the sand collecting disc, that is, when the cat steps on the grid plate, the grid plate can be further prevented from being separated from the sand collecting disc; a connecting plate 97 is arranged on the rear side wall of the lower part of the sand collecting disc 9, a first insertion slot 98 with an open lower end is formed between the connecting plate 97 and the sand collecting disc 9, an insertion plate 12 is arranged at the upper edge of the front side of the base 1, the insertion plate 12 is inserted into the first insertion slot 98, the rear side wall of the lower part of the sand collecting disc 9 abuts against the front side wall of the base 1, and the connecting plate 97 is buckled with the insertion plate 12; after the structure is adopted, when the sand collecting disc is assembled with the base, the insertion plate can be inserted into the insertion slot, the rear side wall of the lower part of the sand collecting disc can abut against the front side wall of the base, and at the same time, the connecting plate can be buckled with the insertion plate, so that the sand collecting disc can be reliably and conveniently assembled with the base.A plurality of second clamping holes 99 are arranged on the connecting plate 97 at intervals along the extending direction of the connecting plate 97, and the rear side of the plug-in plate 12 is provided with a plurality of second clamping blocks 13 corresponding to the plurality of second clamping holes 99, each of the second clamping blocks 13 is clamped with the second clamping hole 99 at the corresponding position to lock the sand collecting disc 9 and the base 1; by adopting this structure, after the plug-in plate is inserted into the slot, each of the second clamping blocks can be clamped into the second clamping hole at the corresponding position, so that the connecting plate can be reliably and conveniently buckled with the plug-in plate, that is, the sand collecting disc can be reliably and conveniently assembled with the base.

[0051] The ozone sheet 10 is fixed on one side inner wall of the cavity 11, and the ozone sheet 10 is electrically connected with the controller in the cat litter basin; by fixing the ozone sheet in the cavity of the base, the ozone generated by the ozone sheet during operation can sterilize and disinfect the excrement in the garbage box, and can purify the air in the garbage box and the cavity of the base, so as to avoid pollution to the environment around the cat litter basin; a pair of second slots 14 are arranged on the inner wall of the cavity 11, and the ozone sheet 10 is clamped with the pair of second slots 14, and the cavity 11 is provided with a support 15, and the support 15 is fixed with the base 1 and presses the ozone sheet 10; by adopting this structure, after the ozone sheet is clamped with the pair of second slots, and the support is fixed with the base, the ozone sheet can be pressed on the base by the support, that is, the ozone sheet can be reliably fixed with the base.

[0052] The inside of the garbage box 3 is provided with a storage cavity 31 with an upper end opening, and the litter box further comprises a box cover 32 which is detachably connected to the opening at the upper end of the storage cavity 31, and the box cover 32 is used to press the bag opening of the garbage bag against the opening at the upper end of the storage cavity 31; a through hole 321 is arranged on the box cover 32 for excrement to pass through and enter the storage cavity 31; through the arrangement of the box cover, the bag opening of the garbage bag placed in the storage cavity can be reliably fixed, that is, the garbage bag can be prevented from being completely retracted into the storage cavity, and the collection and cleaning of excrement can be facilitated under the action of the garbage bag; a recess 322 for embedding a fragrance piece is arranged on the box cover 32, and a plurality of fragrance expansion holes 323 communicating with the storage cavity 31 are arranged at the bottom of the recess 322; after the excrement of the cat falls through the through hole on the box cover into the garbage bag in the storage cavity, the fragrance of the fragrance piece can diffuse into the garbage bag through the fragrance expansion holes, so that the purpose of covering up the odor of the excrement temporarily stored in the garbage box can be achieved, that is, the odor of the excrement temporarily stored in the garbage box can be prevented from polluting the environment around the litter box; buckles 324 are arranged at both ends of the box cover 32, and buckle grooves 33 are arranged on the outer walls at both ends of the garbage box 3, and each buckle 324 is buckled with the buckle groove 33 on the corresponding side; through this structure, after each buckle is buckled with the buckle groove on the corresponding side, the box cover can be reliably connected to the opening at the upper end of the storage cavity, and when each buckle is separated from the buckle groove on the corresponding side, the box cover can be conveniently detached from the upper end of the storage cavity; the lower end of each buckle 324 is provided with an extension 325 which is gradually bent outward from top to bottom; through this structure, since the lower end of each buckle is provided with an extension which is gradually bent outward from top to bottom, when the box cover needs to be detached from the box body, the extension can be pushed by the fingers to facilitate the buckle to separate from the buckle groove, so as to facilitate the unlocking of the box cover and the box body, and then the box cover can be conveniently detached from the box body; a hand buckle groove 326 is arranged at the bottom of the outer wall of the garbage box 3; through this structure, when the box body needs to be pulled out of the base, the fingers can be buckled into the hand buckle groove, so as to facilitate the pulling of the box body out of the base.

[0053] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A litter box, comprising a base (1), a roller (2), a litter box (3), and a drive unit (4); the roller (2) is rotatably connected to the base (1), the drive unit (4) is installed in the base (1) and is used to drive the roller (2) to rotate relative to the base (1), the litter box (3) is inserted into the base (1) located on one side of the roller (2), the litter box (3) is used to receive feces discharged through a defecation channel (21) on the inner wall of the roller (2), and the interior of the base (1) is provided with a cavity (11) for communicating the defecation channel (21) and the litter box (3); characterized in that: A sealing plate (5) is provided at the outlet end of the defecation channel (21). The lower end of the sealing plate (5) is rotatably connected to the roller (2) on the inner side of the outlet end of the defecation channel (21), and the upper end of the sealing plate (5) is fastened to the roller (2) on the outer side of the outlet end of the defecation channel (21). A drive assembly (6) is connected inside the base (1). The drive assembly (6) is used to drive the sealing plate (5) to unlock from the roller (2) so that the sealing plate (5) rotates relative to the roller (2) to open and release the seal on the defecation channel (21). When the roller (2) drives the sealing plate (5) to rotate away from the drive assembly (6), When in motion, the inner wall of the base (1) is used to push the sealing plate (5) so that the sealing plate (5) rotates toward the side closer to the roller (2) and engages with the roller (2) on the outer side of the outlet end of the defecation channel (21); the upper end of the sealing plate (5) is provided with two spring buckles (51) distributed in a front-to-back interval. When the sealing plate (5) rotates toward the side closer to the roller (2), the two spring buckles (51) are used to engage with the roller (2) on the outer side of the outlet end of the defecation channel (21) to lock the sealing plate (5) and the roller (2); the drive assembly (6) includes a motor (61) and a rotating rod (62); the motor (61) is fixed The rotating rod (62) is rotatably connected to the base (1) and one end of the rotating rod (62) is rotatably connected to the output shaft of the motor (61). The outer wall of the rotating rod (62) is fixed with a paddle (621) corresponding to the spring clip (51). When the motor (61) drives the rotating rod (62) to rotate, each paddle (621) is used to paddle the spring clip (51) at the corresponding position so that the spring clip (51) disengages from the roller (2) outside the outlet end of the defecation channel (21). A turntable is coaxially arranged on the outer wall of the rotating rod (62). (622) A photoelectric sensor (63) is fixed inside the base (1). The outer edge of the turntable (622) is inserted into the opening slot of the photoelectric sensor (63) and is fitted with the opening slot of the photoelectric sensor (63) with a gap. A notch (623) is provided on the outer edge of the turntable (622). When the notch (623) rotates to the position of the photoelectric sensor (63), the notch (623) is used to allow the light emitted by the photoelectric sensor (63) to pass through so that the photoelectric sensor (63) is turned on. The photoelectric sensor (63) and the motor (61) are both electrically connected to the controller in the litter box.

2. The litter box according to claim 1, characterized in that: A support shaft (22) is coaxially arranged on the rear side of the roller (2). The support shaft (22) is supported on the base (1) and rotatably connected to the base (1). An air outlet channel (23) is formed inside the support shaft (22) and is coaxially arranged with the support shaft (22). An activated carbon component (7) is embedded in the air outlet channel (23). An air suction component (8) is arranged on the rear side of the base (1). The activated carbon component (7) and the air suction component (8) are arranged in a front-to-back correspondence. When the air suction component (8) is working, the air from inside the roller (2) flows through the activated carbon component (7) and the air suction component (8) in sequence and is discharged to the outside of the litter box.

3. The litter box according to claim 2, characterized in that: The activated carbon assembly (7) includes a shell (71) and activated carbon particles filled inside the shell (71). Both ends of the shell (71) are provided with grid holes (711). The shell (71) is embedded in the air outlet channel (23). The inner sidewall of the air outlet channel (23) gradually narrows inward from back to front to form a cone-shaped structure. The shape of the outer sidewall of the shell (71) is adapted to the shape of the inner sidewall of the air outlet channel (23). The shell (71) is inserted into the air outlet channel (23) from back to front and fits tightly with the air outlet channel (23).

4. The litter box according to claim 2, characterized in that: The suction assembly (8) includes a fan (81) and a rear cover plate (82); the rear cover plate (82) is fixed to the rear side of the base (1), and an air guide tube (821) is provided on the front side of the rear cover plate (82). The fan (81) is located inside the air guide tube (821) and fixed to the rear cover plate (82). A grid-shaped air outlet (822) is provided on the rear cover plate (82) located on the inner side of the rear end of the air guide tube (821); a grid-shaped protective plate (83) is connected to the front end of the air guide tube (821). The outer edge of the protective plate (83) is provided with a backward-bent annular connecting part (831), which is sleeved on the front end of the air guide tube (821). The side wall of the annular connecting part (831) is provided with a plurality of first locking holes (832) circumferentially. The outer wall of the front end of the air guide tube (821) is provided with a first locking block (823) corresponding to the plurality of first locking holes (832). Each first locking block (823) is engaged with the first locking hole (832) at the corresponding position.

5. The litter box according to claim 1, characterized in that: The litter box also includes a litter collection tray (9), which is located on the front side of the middle part of the roller (2) and is detachably connected to the base (1). The opening at the upper end of the litter collection tray (9) is close to the lower edge of the front opening of the roller (2). A grid plate (91) is detachably connected to the opening at the upper end of the litter collection tray (9). An arc-shaped flange (92) is provided on the rear side of the upper end of the litter collection tray (9). The flange (92) extends from front to back to the inner side of the front opening of the roller (2). An arc-shaped cavity (93) with an open bottom is formed between the flange (92) and the rear side wall of the sand collecting disc (9). The lower edge of the front opening of the roller (2) extends into the cavity (93) and leaves a gap between it and the cavity (93). Several rolling components (94) are connected to the inner top of the flange (92) and are spaced apart along the circumferential direction of the flange (92). The rolling components (94) are supported on the lower edge of the front opening of the roller (2) and are used to cooperate with the roller (2) to roll.

6. The litter box according to claim 5, characterized in that: Each of the rolling components (94) includes a pin (941) and a rolling sleeve (942); the rolling sleeve (942) is sleeved on the outside of the pin (941) and rotatably connected to the pin (941); both ends of the pin (941) are engaged with the flange (92) and tightly fitted; the rolling sleeve (942) is supported on the lower edge of the front opening of the roller (2) and is used to roll with the roller (2); the width of the upper opening of the sand collecting disc (9) in the front-rear direction gradually increases from the left and right sides of the sand collecting disc (9) towards the center, and the sand collecting disc (942)... The front sidewall of the sand collection plate (9) gradually expands towards the front from bottom to top. The shape of the grid plate (91) is adapted to the shape of the upper opening of the sand collection plate (9). Several circumferentially spaced support ribs (95) are provided on the inner wall of the sand collection plate (9). The grid plate (91) is embedded in the inner side of the upper opening of the sand collection plate (9) and the grid plate (91) is supported on the upper ends of several support ribs (95). Several insertion posts (911) are provided on the lower end surface of the grid plate (91). Several insertion posts (911) are provided on the inner bottom of the sand collection plate (9). Each of the aforementioned plug-in pins (911) corresponds vertically to a plug-in sleeve (96). The lower end of each plug-in pin (911) is inserted into the corresponding plug-in sleeve (96) and tightly fitted with it. A connecting plate (97) is provided on the rear side wall of the lower part of the sand collecting disc (9). A first slot (98) with a lower opening is formed between the connecting plate (97) and the sand collecting disc (9). A plug-in plate (12) is provided at the upper edge of the front side of the base (1). The plug-in plate (12) is inserted into the first slot (98). The rear sidewall of the lower part of the disc (9) abuts against the front sidewall of the base (1), and the connecting plate (97) is fastened to the plug-in plate (12). The connecting plate (97) is provided with a number of second locking holes (99) distributed at intervals along the extension direction of the connecting plate (97). The rear side of the plug-in plate (12) is provided with a second locking block (13) corresponding to the number of second locking holes (99). Each second locking block (13) is engaged with the second locking hole (99) at the corresponding position to lock the sand collecting disc (9) and the base (1).

7. The litter box according to claim 1, characterized in that: An ozone sheet (10) is fixed on one side of the inner wall of the cavity (11). The ozone sheet (10) is electrically connected to the controller located in the litter box. A pair of second slots (14) are provided on the inner wall of the cavity (11). The ozone sheet (10) is inserted into the pair of second slots (14). A bracket (15) is provided inside the cavity (11). The bracket (15) is fixed to the base (1) and presses the ozone sheet (10).

8. The litter box according to claim 1, characterized in that: The litter box (3) has an internal storage cavity (31) with an opening at the top. The litter box also includes a lid (32), which is detachably connected to the opening at the top of the storage cavity (31). The lid (32) is used to press the opening of the litter bag against the opening at the top of the storage cavity (31). The lid (32) has a through hole (321) for feces to pass through and enter the storage cavity (31). The lid (32) also has a groove (322) for embedding a fragrance tablet. The bottom of the groove (322) is provided with a number of aroma-diffusing holes (323) communicating with the storage cavity (31); both ends of the lid (32) are provided with buckles (324), and both ends of the outer wall of the trash box (3) are provided with buckle grooves (33), and each buckle (324) is engaged with the buckle groove (33) on the corresponding side; the lower end of each buckle (324) is provided with an extension section (325) that gradually bends outward from top to bottom; the bottom of the outer wall of the trash box (3) is provided with a handle groove (326).

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