CN112452732B - Excrement screening device and method - Google Patents
Excrement screening device and method Download PDFInfo
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- CN112452732B CN112452732B CN202011354234.8A CN202011354234A CN112452732B CN 112452732 B CN112452732 B CN 112452732B CN 202011354234 A CN202011354234 A CN 202011354234A CN 112452732 B CN112452732 B CN 112452732B
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- screening
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- excrement
- drum
- waste
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- 238000012216 screening Methods 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims abstract description 12
- 241000282326 Felis catus Species 0.000 claims abstract description 65
- 239000002699 waste material Substances 0.000 claims abstract description 57
- 239000000203 mixture Substances 0.000 claims abstract description 42
- 238000007599 discharging Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000007873 sieving Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/01—Removal of dung or urine, e.g. from stables
- A01K1/0107—Cat trays; Dog urinals; Toilets for pets
- A01K1/0114—Litter boxes with screens for separating excrement from litter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Housing For Livestock And Birds (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the field of pet supplies, and discloses an excrement screening device and method. Excrement screening plant includes rotatable cylinder and sets up the filter screen subassembly in the cylinder, is provided with the waste discharge port on the cylinder, and the filter screen subassembly is including reposition of redundant personnel piece and screening piece, and screening piece encloses with the lateral wall of cylinder and establishes and form the screening chamber, and when the cylinder rotated along first direction, the reposition of redundant personnel piece can shelter from the waste discharge port to make the cat litter mixture reposition of redundant personnel in the cylinder to screening intracavity, and the excrement in the cat litter mixture is via screening piece screening, and discharges via the waste discharge port along the inner wall of reposition of redundant personnel piece. Cat sand filters the backward flow to the cylinder in via the screening spare, and the excrement is stayed the screening intracavity via the screening of screening spare to discharge via the waste discharge port along the inner wall of reposition of redundant personnel spare, it is effectual to screen, and screening efficiency is high. Because the shunt piece can shelter from the waste discharge port, the pet cat can not touch the waste discharge port easily, the life danger caused by the fact that the pet cat is blocked is avoided, and the safety of the pet cat is ensured on the mechanical structure.
Description
Technical Field
The invention relates to the field of pet supplies, in particular to an excrement screening device and method.
Background
As the physical living standard of people is continuously improved, the requirements of mental life are gradually improved, and more people like to raise pet cats are provided. Although many cat lovers like pet cats, they do not have time to clean up the excrement produced by the pet cats, so that there are special fully-automatic pet cat toilets.
In the existing automatic pet cat toilet, the gravity screening principle based on the roller form is more and more mainstream in the development of similar products due to the reasons of high efficiency, stability, convenience in maintenance and the like, but the shearing mechanism of the automatic pet cat toilet has safety risks for the life safety of pets in the toilet. The gravity screening principle based on the roller form almost needs to rely on the detection of the sensors and the algorithm of software to ensure the safety of the pet in the using process, but the various sensors inevitably have probabilistic faults in practical application and cannot achieve real safety protection, so that the life safety of the cats is threatened.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an excrement screening apparatus and method, which can screen excrement in a cat litter mixture and ensure safety of a pet cat.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an excrement screening plant, includes rotatable cylinder and set up in filter screen assembly in the cylinder, be provided with the mouth of wasting discharge on the cylinder, filter screen assembly is including reposition of redundant personnel piece and screening piece, the screening piece with the lateral wall of cylinder encloses to establish and forms the screening chamber, when the cylinder rotates along first direction, the reposition of redundant personnel piece can shelter from the mouth of wasting discharge, so that cat litter mixture in the cylinder shunts extremely screening intracavity, excrement via in the cat litter mixture screening piece sieves, and follows the inner wall via of reposition of redundant personnel piece the mouth of wasting discharge discharges.
In a preferred embodiment of the excrement screening apparatus of the present invention, the screening member is provided with screening holes, and the cat litter in the cat litter mixture flows back into the drum through the screening holes.
As a preferable mode of the excrement screening apparatus of the present invention, the side wall of the flow divider facing away from the drum is protruded to form a first curved surface.
As a preferable mode of the excrement screening device of the present invention, the side wall of the screening member facing away from the drum is protruded to form a second curved surface.
As a preferable aspect of the excrement screening apparatus of the present invention, the screening member and the diverging member are integrally formed or can be spliced into an integral structure.
As a preferable aspect of the excrement screening device of the present invention, the drum is provided with a pet hole, and the pet hole is provided coaxially with the drum.
The excrement screening device further comprises a supporting seat, a driven wheel is arranged on the supporting seat, and the roller is arranged on the driven wheel.
As a preferable mode of the excrement screening apparatus of the present invention, the excrement screening apparatus further comprises a waste discharging box, and the waste discharging box is detachably mounted on the supporting base.
The excrement screening device further comprises a driving mechanism, and the driving mechanism drives the roller to rotate through gear transmission.
An excrement screening method adopting the excrement screening device comprises the following steps:
s1, rotating a roller along a first direction;
s2, shunting the cat litter mixture in the roller into a screening cavity through a shunting piece;
s3, filtering and refluxing the cat litter into the roller through the screening part;
s4, screening the excrement in the screening cavity through the screening piece;
s5, discharging excrement along the inner wall of the flow dividing piece through a waste discharging port;
s6, the roller rotates to the initial position.
The invention has the beneficial effects that:
according to the excrement screening device and method provided by the invention, when the cat litter mixture in the roller is screened, the roller rotates along the first direction, the cat litter mixture slides along the inner wall of the roller under the action of gravity, the shunting piece can shield the waste discharge port, the cat litter mixture is shunted into the screening cavity through the shunting piece, cat litter in the cat litter mixture is filtered and reflowed into the roller through the screening piece, excrement in the cat litter mixture is screened and remained in the screening cavity through the screening piece and is discharged through the waste discharge port along the inner wall of the shunting piece, the screening effect is good, and the screening efficiency is high. Because the shunt piece can shelter from the waste discharge port, the pet cat can not easily touch the waste discharge port, so that the life danger caused by the pet cat being blocked is avoided, the safety of the pet cat is ensured from the mechanical structure, and the pet safety is ensured without depending on the detection of a sensor and the algorithm of software.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic view of a waste screening device according to an embodiment of the present invention, shown in a first view;
FIG. 2 is a schematic view of a waste screening device according to an embodiment of the present invention, shown in a second view;
FIG. 3 is a schematic half-section view of a waste screening device according to an embodiment of the present invention from a first perspective;
FIG. 4 is a schematic half-section view of an excreta screening device provided in an embodiment of the present invention from a third perspective;
FIG. 5 is a first isometric view of a screen assembly in a waste screening device according to an embodiment of the present invention;
FIG. 6 is a second isometric view of a screen assembly in a waste screening device according to an embodiment of the present invention;
FIG. 7 is a third isometric view of a screen assembly in a waste screening device according to an embodiment of the present invention;
FIG. 8 is a fourth axis of perspective view of a screen assembly in a waste screening device according to an embodiment of the present invention;
FIG. 9 is a first schematic diagram illustrating the screening principle of the excrement screening device according to the embodiment of the present invention;
FIG. 10 is a second schematic view of the screening principle of the excrement screening device according to the embodiment of the present invention;
FIG. 11 is a third schematic diagram illustrating a screening principle of an excrement screening device according to an embodiment of the present invention;
FIG. 12 is a fourth schematic view illustrating the screening principle of the excrement screening device according to the embodiment of the present invention;
FIG. 13 is a fifth schematic view illustrating the screening principle of the excrement screening device according to the embodiment of the present invention;
fig. 14 is a sixth schematic view illustrating a screening principle of the excrement screening device according to the embodiment of the present invention.
In the figure:
1-a roller; 2-a screen assembly; 3, discharging waste boxes;
11-a waste discharge port; 12-pet mouth; 13-a first gear; 14-a second gear;
21-a splitter; 22-screening element; 221-sieving holes;
100-excreta; 200-cat litter.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and encompass, for example, both fixed and removable connections unless otherwise explicitly stated or limited; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 8, the present embodiment provides a waste screening apparatus, which may be used for pet cats to excrete, and comprises a rotatable drum 1 and a screen assembly 2 disposed in the drum 1. Be provided with waste outlet 11 on the cylinder 1, filter screen subassembly 2 includes reposition of redundant personnel piece 21 and screening piece 22, and screening piece 22 encloses with the lateral wall of cylinder 1 and establishes and form the screening chamber. When cylinder 1 rotated along first direction, reposition of redundant personnel piece 21 can shelter from waste discharge port 11 to make the cat litter mixture in the cylinder 1 shunt to the screening intracavity, excrement 100 in the cat litter mixture sieves via screening piece 22, and discharges via waste discharge port 11 along the inner wall of reposition of redundant personnel piece 21. It should be noted that the excrement 100 in this embodiment may be stained with a certain amount of cat litter.
When screening the cat litter mixture in the cylinder 1, rotate cylinder 1 along first direction, the cat litter mixture slides along cylinder 1's inner wall under the action of gravity, reposition of redundant personnel piece 21 can shelter from waste discharge port 11, the cat litter mixture shunts to the screening intracavity via reposition of redundant personnel piece 21, cat litter 200 in the cat litter mixture filters backward flow to cylinder 1 in via screening piece 22, excrement 100 in the cat litter mixture is detained in the screening intracavity via screening piece 22 screening, and discharge via waste discharge port 11 along the inner wall of reposition of redundant personnel piece 21, it is effectual to screen, and screening efficiency is high. Because the shunt part 21 can shield the waste discharge port 11, the pet cat cannot easily touch the waste discharge port 11, so that the life danger caused by the pet cat being clamped is avoided, the safety of the pet cat is ensured from the mechanical structure, and the detection of a sensor and the algorithm of software are not required to ensure the safety of the pet.
Optionally, the screening member 22 is provided with screening holes 221, and the cat litter 200 in the cat litter mixture flows back into the drum 1 through the screening holes 221. The screening holes 221 are slightly larger than the litter 200 to facilitate filtering the litter 200 from the litter mixture and to retain the waste 100 from the litter mixture within the screening chamber. The sieving holes 221 may have a regular hexagonal shape, and the sieving holes 221 may be provided in plural in a honeycomb shape.
To facilitate the diversion of the litter mixture, optionally the side wall of the diverter 21 facing away from the drum 1 is convex forming a first curved surface. Reposition of redundant personnel piece 21 can be saddle-shaped's curved surface structure, conveniently shunts cat litter mixture, makes cat litter mixture divide into two parts and flows into the screening intracavity.
To facilitate the formation of the screening chamber, the side wall of the screening element 22 facing away from the drum 1 may optionally be convex to form a second curved surface. It should be noted that the width of the screening element 22 is greater than the width of the diverter 21, which facilitates the diverted litter mixture to flow into the screening chamber.
Optionally, the screen member 22 is integrally formed with the flow divider 21 or can be spliced into a unitary structure to facilitate the transfer of the fecal matter 100 remaining in the screen chamber to the inner wall of the flow divider 21.
In order to facilitate the entrance and exit of the pet cat, optionally, a pet opening 12 is formed in the roller 1, the pet opening 12 is coaxial with the roller 1, the pet opening 12 is formed in one side of the roller 1, and in the rotating process of the roller 1, the pet opening 12 is always kept unchanged, so that the entrance and exit of the pet cat are prevented from being injured.
Optionally, the excrement screening plant further comprises a supporting seat, a driven wheel is arranged on the supporting seat, and the roller 1 is arranged on the driven wheel. The driven wheel can be provided with a plurality of wheels to support the roller 1, and meanwhile, the rotation fluency of the roller 1 is ensured.
In order to facilitate collection of the excrement 100 discharged through the waste discharge port 11, the excrement sorting apparatus may further include a waste discharge box 3, and the waste discharge box 3 may be detachably mounted on the support base. The waste discharge box 3 can be detachably mounted by adopting a buckle connection mode, so that a master can conveniently and quickly clean the excrement 100 in the waste discharge box 3 in time.
To realize automatic screening, the excrement screening device optionally further comprises a driving mechanism, and the driving mechanism drives the roller 1 to rotate through gear transmission. The accuracy and stability of the rotation of the roller 1 can be improved by adopting a gear transmission mode. In this embodiment, a first gear 13 is provided on one side of the drum 1, and the driving mechanism is engaged with the first gear 13 through a second gear 14 to drive the drum 1 to rotate.
When screening the litter mixture in the drum 1, as shown in fig. 9, the drum 1 is in the initial position, the drum 1 is rotated in the first direction (counterclockwise direction) to the position shown in fig. 10, the litter mixture slides along the inner wall of the drum 1 under the action of gravity, the diversion member 21 can block the waste discharge opening 11, the drum 1 is further rotated in the first direction (counterclockwise direction) to the position shown in fig. 11, the litter mixture is diverted into the screening cavity via the diversion member 21, the drum 1 is further rotated in the first direction (counterclockwise direction) to the position shown in fig. 12, the litter 200 in the litter mixture is filtered and returned into the drum 1 via the screening member 22, the waste 100 in the litter mixture is screened and left in the screening cavity via the screening member 22, the drum 1 is further rotated in the first direction (counterclockwise direction) to the position shown in fig. 13, the waste 100 is discharged along the inner wall of the diversion member 21 via the waste discharge opening 11, the drum 1 is rotated to the initial position shown in fig. 14, the screening operation of the drum 1 is completed, and the bottom of the litter mixture is stacked.
The embodiment also provides an excrement screening method, which adopts the excrement screening device and comprises the following steps:
s1, rotating a roller 1 along a first direction;
s2, the cat litter mixture in the roller 1 is shunted into the screening cavity through the shunt 21;
s3, filtering and refluxing the cat litter 200 into the roller 1 through the screening piece 22;
s4, screening the excrement 100 by the screening piece 22 and reserving the excrement in the screening cavity;
s5, discharging the excrement 100 through the waste discharge port 11 along the inner wall of the flow divider 21;
and S6, rotating the roller 1 to the initial position.
The excrement screening method that this embodiment provided, when screening the cat litter mixture in the cylinder 1, rotate cylinder 1 along first direction, the cat litter mixture slides along cylinder 1's inner wall under the action of gravity, reposition of redundant personnel piece 21 can shelter from waste discharge port 11, the cat litter mixture shunts to screening intracavity via reposition of redundant personnel piece 21, cat litter 200 in the cat litter mixture filters the backward flow to cylinder 1 in via screening piece 22, excrement 100 in the cat litter mixture is detained in screening intracavity via screening piece 22 screening, and discharge via waste discharge port 11 along the inner wall of reposition of redundant personnel piece 21, it is effectual to screen, screening efficiency is high. Because the shunt member 21 can shield the waste discharge port 11, the pet cat cannot easily reach the waste discharge port 11, so as to avoid the life danger caused by the pet cat being blocked, the safety of the pet cat is ensured on the mechanical structure, and the detection of a sensor and the algorithm of software are not required to ensure the safety of the pet cat.
It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. The excrement screening device is characterized by comprising a rotatable drum (1) and a screen assembly (2) arranged in the drum (1), wherein a waste discharge port (11) is formed in the drum (1), the screen assembly (2) comprises a shunting piece (21) and a screening piece (22), the screening piece (22) and the side wall of the drum (1) are surrounded to form a screening cavity, when the drum (1) rotates along a first direction, the shunting piece (21) can shield the waste discharge port (11) so that a cat litter mixture in the drum (1) is shunted into the screening cavity, excrement (100) in the cat litter mixture is screened by the screening piece (22) and discharged by the waste discharge port (11) along the inner wall of the shunting piece (21);
the side wall of the flow dividing piece (21) back to the roller (1) is protruded to form a first curved surface, and the flow dividing piece (21) is of a saddle-shaped curved surface structure;
the side wall of the screening piece (22) back to the roller (1) is protruded to form a second curved surface, and the width of the screening piece (22) is larger than that of the flow dividing piece (21).
2. A waste screening arrangement according to claim 1, wherein screening apertures (221) are provided in the screening member (22), and wherein cat litter (200) in the cat litter mixture flows back into the drum (1) via the screening apertures (221).
3. A waste screening device according to claim 1, wherein the screening element (22) is integrally formed with the diverter (21) or is capable of being spliced into a unitary structure.
4. A waste screening device according to claim 1, wherein said drum (1) is provided with a pet aperture (12), said pet aperture (12) being arranged coaxially with said drum (1).
5. A waste screening device according to claim 1, further comprising a support base on which a driven wheel is provided, said drum (1) being provided on said driven wheel.
6. A waste screening device according to claim 5, further comprising a waste discharge cassette (3), said waste discharge cassette (3) being removably mounted to said support base.
7. A waste screening device according to claim 1, further comprising a drive mechanism for driving said drum (1) in rotation by means of a gear transmission.
8. A method for screening excrement, which comprises the steps of using the excrement screening apparatus according to any one of claims 1 to 7, comprising:
s1, a roller (1) rotates along a first direction;
s2, the cat litter mixture in the roller (1) is shunted into the screening cavity through a shunt part (21);
s3, filtering and refluxing the cat litter (200) into the roller (1) through the screening piece (22);
s4, screening the excrement (100) by the screening piece (22) and reserving the excrement in the screening cavity;
s5, discharging the excrement (100) along the inner wall of the flow dividing piece (21) through a waste discharging port (11);
s6, the roller (1) rotates to the initial position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354234.8A CN112452732B (en) | 2020-11-26 | 2020-11-26 | Excrement screening device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354234.8A CN112452732B (en) | 2020-11-26 | 2020-11-26 | Excrement screening device and method |
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| CN112452732A CN112452732A (en) | 2021-03-09 |
| CN112452732B true CN112452732B (en) | 2023-04-07 |
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| CN202011354234.8A Active CN112452732B (en) | 2020-11-26 | 2020-11-26 | Excrement screening device and method |
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| CN115885866B (en) * | 2021-11-05 | 2023-09-29 | 重庆宇海科技有限公司 | Automatic cleaning device and separator for animal excrement |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7013835B2 (en) * | 2004-04-27 | 2006-03-21 | David Brokaski | Cat litter device |
| US20080017123A1 (en) * | 2006-07-24 | 2008-01-24 | Bryan Nicholas Chin | Pet box with rotational litter sifting screen and disposal receptacle |
| CN203872742U (en) * | 2014-04-22 | 2014-10-15 | 姚亮 | Cat toilet structure |
| KR102004482B1 (en) * | 2018-10-31 | 2019-07-26 | 주식회사 플루토전자 | A device that automatically cleans cat excretion |
| KR102220159B1 (en) * | 2019-02-01 | 2021-02-25 | 창원대학교 산학협력단 | Toilet for pet |
| KR102269303B1 (en) * | 2019-04-09 | 2021-06-24 | 양해민 | Sand filter rotation device of cat's defecation device |
| CN111837972A (en) * | 2019-08-29 | 2020-10-30 | 小佩网络科技（上海）有限公司 | Excrement screening device and method |
| CN111296303A (en) * | 2020-04-23 | 2020-06-19 | 上海拓牛智能科技有限公司 | Cat litter basin capable of automatically clearing excrement |
| CN111802256A (en) * | 2020-08-21 | 2020-10-23 | 林英豪 | Intelligent cat litter basin |
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