CN219939261U - Roller for separating cat litter and cat feces - Google Patents

Abstract

The utility model discloses a roller for separating cat litter and cat feces, which comprises a roller body and a screen plate, wherein the roller body is provided with a litter accommodating cavity, an inlet and an excrement discharging port which are communicated with the litter accommodating cavity are also formed in the roller body, the screen plate is provided with a connecting end and a movable end, a screen hole is formed in a region, close to the movable end, of the screen plate, the connecting end is connected with the roller body, and the movable end is provided with a first position and a second position relative to the roller body; when the movable end is at the first position, a temporary storage bin is defined between the sieve plate and the cylinder body, and the temporary storage bin and the defecation port are respectively positioned at two sides of the connecting end; the movable end rotates around the connecting end from the first position by a certain angle to move to the second position; the drum further comprises a drive mechanism connected to the drum for driving the screen plate to rotate about the connection end to switch the movable end between the first position and the second position. The cat hair brushing-up device can prevent cat hair from rubbing up dirt, and improves user experience.

Description

Roller for separating cat litter and cat feces

Technical Field

The utility model relates to the technical field of pet supplies, in particular to a roller for separating cat litter and cat feces.

Background

With the popularity of cats as domestic pets, more and more people begin to raise pet cats, and the problem of excretion of pet cats has plagued the raising of the pet cats. Although the cat can realize the regular point excretion in the cat toilet without training relative to the pet dog, the cat cannot continue to excrete or can excrete everywhere at will without timely cleaning the excrement in the cat litter box. Meanwhile, cat excreta often gives off strong odor and contains a large amount of bacterial virus, which causes a great deal of health problems and health trouble to the breeder.

Because cats have the physiological habit of raking cat litter to bury excrement after excretion, breeders can equip pet cats with special cat litter boxes, namely cat litter boxes. The excrement and urine in the cat litter basin need manual cleaning cat litter basin in early stage, and the cleaning process can cause breeder's discomfort, in order to avoid the discomfort that the cleaning process brought for the breeder, has born some cat litter basins that can clear up excrement and urine in the cat litter automatically at present.

For example, chinese patent application publication No. CN111436376a discloses a smart cat litter box that can use strip-shaped cat litter, comprising an arc-shaped cover plate portion, an upper L-arm portion, a base portion, and a middle ball chamber portion; the upper L arm part comprises an infrared living body detection device, an LED lighting device in the spherical cabin and an air inlet of an air deodorizing and filtering device of the spherical cabin; the base part is integrated with an excrement treatment bin, a spherical cabin air deodorizing and filtering device, an air outlet of the air deodorizing and filtering device and a PCB main board assembly, wherein the excrement treatment bin comprises a water injection unit and a water drainage unit, a pulverizer and a water level detection device are arranged in the excrement treatment bin, the PCB main board assembly comprises a plurality of PCB boards, a wifi unit, a singlechip and a Hall sensor which are solidified on the PCB boards, the PCB main board assembly is integrated with a control system and can be operated by being connected to a mobile phone in a wireless way; the middle spherical cabin part is provided with an opening at the top, the spherical cabin comprises a spherical cabin cat litter isolation grating, the bottom is coated with a non-stick coating, and the strip cat litter is paved on the non-stick coating; the rear part of the sphere is provided with a spherical cabin rotating motor and a driving unit, the front part of the sphere is provided with a spherical cabin door assembly, and the assembly consists of a cabin door, an electromagnetic lock pin and an electromagnetic iron absorber; in addition, the intelligent cat litter box capable of using the strip cat litter also comprises an upper L arm and base connecting hinge, an arc cover plate button, a base inner spherical cabin motor seat, a spherical cabin wire harness interface and a base wire harness interface; the intelligent cat toilet with the strip-shaped cat litter can dissolve the strip-shaped cat litter, has small dust and is not easy to bring out strip-shaped particles after the cat is used in the toilet; the cat litter isolation grating of the spherical cabin consists of two parts, wherein one part is a closed area, and the other part is a strip grating area.

The intelligent cat litter basin of mainstream in the market at present is similar to the patent application exemplified above in many, adopts the structural design of drum-type, including barrel 1 (corresponding to ball cabin in the related art) and sieve 2 (corresponding to isolation grille in the related art), and the sieve separates the inner space of barrel 1 into two parts of flourishing sand chamber 3 and temporary storage storehouse 4, lays cat litter 5 in flourishing sand chamber 3's bottom, and the defecation process of cat is gone on in flourishing sand chamber, and its section structure is shown with reference to fig. 1. The cat buries excrement and then forms big block with cat litter, detects the cat and leaves the back, drives the barrel clockwise rotation through the motor, and when cat litter and sieve contact, the cat litter that does not agglomerate gets into in the face storehouse through the hole, and the big block that combines with cat excrement and cat litter is blockked, when continuing to drive the barrel clockwise rotation, big block can slide to the defecation mouth along the surface of sieve under the effect of gravity and discharge from the defecation mouth, then drive the barrel anticlockwise rotation again, and the cat litter that does not agglomerate reenters flourishing sand intracavity from in the face storehouse under the effect of gravity, so clear away the excrement and urine in the cat litter.

Because the smell of cat litter is very big, many intelligence cat litter basin will have deodorization function as a big selling point of product, in order to realize the function of deodorization, usually adopts following three scheme: according to the scheme I, an active deodorizing device, such as an air purifying device, a UV sterilizing deodorizing device and the like, is arranged on an intelligent cat litter basin; placing aromatherapy, and covering the smell of cat feces with the aroma; and thirdly, the time for the feces to stay in the cat litter is reduced as much as possible, so that the volatilization amount of the odor into the room is reduced.

When the scheme III is adopted, the prior art generally adopts the method that the excrement cleaning function is started immediately after a cat leaves a cat litter box and cat excrement is collected in an excrement collecting box, but the scheme ensures that the excrement stays in cat litter for a short time, the surface of the excrement is in a more moist state, and the cat litter cannot be firmly combined with the excrement, so that when the cat excrement slides from a screen plate, dirt is easily left on the surface of the screen plate, and particularly when the cat is thin or soft, the phenomenon that the dirt is adhered to the surface of the screen plate is more serious. When the cat reenters the sand holding cavity for defecation, the hair of the cat is easy to scratch the dirt adhered to the surface of the sieve plate, and extremely bad use experience is brought to the breeder.

In addition, the sieve plate divides the inner space of the cylinder into two parts, so that the inner space of the cylinder cannot be reasonably utilized. In the product design stage, if the volume of the cylinder is increased to prevent the dirt on the sieve plate from being transferred to the hair of the cat, the manufacturing cost is increased, the volume of the cylinder is increased to occupy more indoor space, and the cylinder is heavier and inconvenient to carry and clean; if the cylinder body with smaller size is adopted for reducing the production cost or reducing the occupation of the space, the movable space of the cat in the cat litter basin is small, and the hair of the cat is easy to scratch the dirt on the sieve plate.

To the above technical problem, a novel roller for separating cat litter and cat feces is needed, so that the roller can effectively prevent cat hair from rubbing dirt, and the roller is better if the roller can reasonably utilize the inner space of the roller.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a roller for separating cat litter from cat litter, which can solve at least one of the technical problems to a certain extent.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the roller for separating the cat litter and the cat litter comprises a roller body and a screen plate, wherein the roller body is provided with a litter accommodating cavity, an inlet and an outlet communicated with the litter accommodating cavity and a defecation port are also formed in the roller body, the screen plate is provided with a connecting end and a movable end, a region, close to the movable end, on the screen plate is provided with screen holes, the connecting end is connected with the roller body, and the movable end is provided with a first position and a second position relative to the roller body; when the movable end is at the first position, a temporary storage bin is defined between the sieve plate and the cylinder body, and the temporary storage bin and the defecation port are respectively positioned at two sides of the connecting end; the movable end rotates around the connecting end from the first position by a certain angle to move to the second position; the drum further comprises a drive mechanism connected to the drum for driving the screen plate to rotate about the connection end to switch the movable end between the first position and the second position.

In some embodiments, the screen panel has a first face and a second face between the active end and the connecting end; when the movable end is at the first position, the first surface and the inner wall of the cylinder body define a temporary storage bin; when the movable end is in the second position, the second face is adjacent to the inner wall of the barrel.

In some embodiments, the second face engages the inner wall of the barrel when the movable end is in the second position.

In some embodiments, the cylinder comprises a connector, a front end cover and a rear end cover, the connector is of a tubular structure, the front end cover and the rear end cover are respectively connected with two ends of the connector to define a sand containing cavity, the inlet and the outlet are formed in the front end cover, the defecation port is formed in the connector, and the connector is at least in rotary connection with one of the connector, the front end cover and the rear end cover.

Further, two ends of the connecting end are respectively pivoted with the front end cover and the rear end cover.

Further, the roller for separating cat litter and cat litter further comprises a front pivot and a rear pivot which are respectively arranged at two ends of the connecting end, a front shaft hole is arranged on the front end cover, a rear shaft hole is arranged on the rear end cover, the front pivot stretches into the front shaft hole, the rear pivot stretches into the rear shaft hole and penetrates through the rear end cover, and the driving mechanism is arranged on the rear end cover or the connecting body and is in transmission connection with the rear pivot.

Further, the sieve plate is an arc plate, the inner diameter of the connecting body is equal to the outer diameter of the sieve plate, and the central angle corresponding to the sieve plate is smaller than the central angle corresponding to the connecting body.

In some embodiments, the cylinder comprises a connector, a front end cover and a rear end cover, wherein the connector is an arc plate, the front end cover and the rear end cover are respectively connected with two ends of the connector and form an open sand containing cavity, a defecation port is arranged on the connector, and the connector is at least rotatably connected with one of the connector, the front end cover and the rear end cover.

Further, two ends of the connecting end are respectively pivoted with the front end cover and the rear end cover.

Further, the roller for separating cat litter and cat litter further comprises a front pivot and a rear pivot which are respectively arranged at two ends of the connecting end, a front shaft hole is arranged on the front end cover, a rear shaft hole is arranged on the rear end cover, the front pivot stretches into the front shaft hole, the rear pivot stretches into the rear shaft hole and penetrates through the rear end cover, and the driving mechanism is arranged on the rear end cover or the connecting body and is in transmission connection with the rear pivot.

Further, the sieve plate is an arc plate, the inner diameter of the connecting body is equal to the outer diameter of the sieve plate, and the central angle corresponding to the sieve plate is smaller than the central angle corresponding to the connecting body.

Compared with the prior art, the surface of the sieve plate, which is used for enabling cat feces to slide through, is not contacted with the hair of a cat all the time in the using process of the roller, so that the roller provided by the embodiment can prevent the hair of the cat from being rubbed with dirt, and the user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the prior art;

FIG. 2 is a perspective view of embodiment 1 of the present utility model;

FIG. 3 is a further perspective view of embodiment 1 of the present utility model;

FIG. 4 is a cross-sectional view of embodiment 1 of the present utility model;

figure 5 is a schematic view of the movable end of the screen deck of figure 4 rotated from the second position to the first position;

FIG. 6 is a schematic view of the cartridge of FIG. 5 after clockwise rotation;

FIG. 7 is a schematic view of the cartridge of FIG. 6 after continuing to rotate clockwise a certain angle;

FIG. 8 is a schematic view of the cartridge of FIG. 7 after continuing to rotate clockwise a certain angle;

FIG. 9 is an enlarged view of a portion of the portion at I in FIG. 8;

FIG. 10 is a perspective view of embodiment 2 of the present utility model with the screen plate in a second position;

figure 11 is a perspective view of a screening deck in accordance with embodiment 2 of the present utility model in a first position;

figure 12 is a further perspective view of the screening deck of embodiment 2 of the present utility model in a first position;

fig. 13 is a structural view of a screen deck in embodiment 1 or 2 of the present utility model;

FIG. 14 is a cross-sectional view of embodiment 2 of the present utility model;

figure 15 is a schematic view of the movable end of the screen deck of figure 14 rotated from the second position to the first position;

FIG. 16 is a schematic view of the cartridge of FIG. 15 rotated clockwise a certain angle;

FIG. 17 is a schematic view of the cartridge of FIG. 16 rotated clockwise a certain angle;

fig. 18 is a schematic view of the case where the opening at the top of the sand holding chamber is used as the inlet/outlet in example 2.

The reference numerals are explained as follows:

in the figure: 1. a cylinder; 101. an access opening; 102. a defecation port; 103. a connecting body; 104. a front end cover; 1041. a front shaft hole; 105. a rear end cover; 2. a sieve plate; 201. a connection end; 202. a movable end; 203. a sieve pore; 204. a first face; 205. a second face; 3. a sand holding cavity; 4. a temporary storage bin; 5. cat litter; 6. a driving mechanism; 601. a motor; 602. a gear set; 7. a front pivot; 8. a rear pivot; 9. excrement.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

Example 1

Referring to fig. 2-9, the present embodiment provides a drum for separating cat litter and cat feces, which includes a drum body 1 and a screen plate 2, wherein the drum body 1 has a litter cavity 3, a passageway 101 and a feces discharge port 102 are further provided on the drum body 1, the passageway 101 is used for a cat to enter and exit the litter cavity 3, the screen plate 2 has a connection end 201 and a movable end 202, a plurality of screen holes 203 are provided on a region of the screen plate 2 adjacent to the movable end 202, the connection end 201 is rotatably connected with the drum body 1, and the movable end 202 has a first position and a second position relative to the drum body 1; when the movable end 202 is at the first position, a temporary storage bin 4 is defined between the sieve plate 2 and the cylinder 1, and the temporary storage bin 4 and the defecation port 102 are respectively positioned at two sides of the connecting end 201; the movable end 202 moves from the first position to the second position by rotating a certain angle around the connecting end 201; the drum further comprises a drive mechanism 6 connected to the drum 1, the drive mechanism 6 being arranged to drive the screen deck 2 in rotation about the connection end 201 to switch the movable end 202 between the first position and the second position.

As shown in fig. 13, the sieve holes 203 are uniformly distributed on the sieve plate 2 near the movable end 202, the sieve holes 203 are sized for cat litter to pass through, but large blocks formed by cat litter and cat litter cannot pass through the sieve holes 203, and the sieve holes 203 can be designed into different shapes, such as round, oval, square, regular hexagon, strip shape and the like, according to different cat litter usage.

In this embodiment the screening deck 2 has a first side 204 and a second side 205 between the active end 202 and the connection end 201. As shown in fig. 5, the movable end 202 is in the first position, and the first surface 204 and the inner wall of the barrel 1 define the temporary storage bin 4. The temporary storage bin 4 is used for temporarily storing non-caking cat sand, the area of the area where the sieve plate 2 is not provided with sieve holes 203 is required to be matched with the cat sand amount paved in the sand accommodating cavity 3, and in order to prevent a feeder from pouring excessive cat sand, scale marks can be arranged on the inner wall of the cylinder body 1. It should also be noted that when the movable end 202 is in the first position, the edge of the screen plate 2 and the inner wall of the cylinder 1 have smaller gaps, and the width of the gaps should be smaller than the particle size of the granular cat litter or the diameter of the circular stripe-shaped cat litter, so as to prevent the cat litter from leaking out of the temporary storage bin 4 through the gap between the screen plate 2 and the cylinder 1.

In different embodiments, the angle of rotation of the movable end 202 during movement from the first position to the second position may be different, in other words, the position of the movable end 202 in the second position in the present disclosure is not limited to the position shown in fig. 4, but in all embodiments, it should be ensured that there is a sufficient space between the screen 2 and the cat litter being laid for the cat to move when the movable end 202 is in the second position. In the preferred embodiment, when the movable end 202 is in the second position, the second surface 205 is adjacent to the inner wall of the barrel 1, thereby ensuring that the space within the barrel 1 can be reasonably utilized and allowing a cat to have a larger movable space within the litter cavity 3.

It will be readily appreciated by those skilled in the art that if the movable end 202 is in the second position, the second surface 205 engages the inner wall of the barrel 1, and the interior space of the barrel 1 is utilized to the greatest extent, the structural design is advantageous in ensuring that the overall shape of the barrel 1 has a smaller volume, reducing the amount of raw materials used in the manufacturing process, reducing the manufacturing cost, and also reducing the weight of the barrel 1, and facilitating handling and cleaning by the user, as compared with the prior art.

Referring to fig. 2, in this embodiment, the cylinder 1 includes a connector 103, a front end cover 104 and a rear end cover 105, the connector 103 has a circular tubular structure, the front end cover 104 and the rear end cover 105 are respectively connected with two ends of the connector 103 to define a sand holding cavity 3, the inlet 101 is provided on the front end cover 104, the discharge port 102 is provided on the connector 103, and the connection end 201 is rotatably connected with at least one of the connector 103, the front end cover 104 and the rear end cover 105.

In the embodiment, the connection end 201 is pivotally connected to the cylinder 1 by pivotally connecting the two ends of the connection end 201 to the front end cover 104 and the rear end cover 105, respectively. In order to realize that the two ends of the connecting end 201 are pivoted with the front end cover 104 and the rear end cover 105 respectively, the roller for separating cat litter from cat litter further comprises a front pivot 7 and a rear pivot 8 which are respectively arranged at the two ends of the connecting end 201, wherein the rear pivot 8 and the connecting end 201 synchronously rotate, the front end cover 104 is provided with a front shaft hole 1041, the rear end cover 105 is provided with a rear shaft hole, the front pivot 7 stretches into the front shaft hole 1041, the rear pivot 8 stretches into the rear shaft hole and penetrates the rear end cover 105, and the driving mechanism 6 is arranged on the rear end cover 105 and is in transmission connection with the rear pivot 8. In other embodiments, the driving mechanism 6 may also be mounted on the connecting body 103. Those skilled in the art will appreciate that the location of the rear axle bore is adapted to the rear pivot 8 of fig. 3 and therefore the rear axle bore is not labeled in the figures. To reduce wear between the front and rear pivots 8 and the front and rear end caps 105, bearings or bushings may be installed between the pivots and the end caps in some embodiments.

As shown in fig. 3, in this embodiment, the driving mechanism 6 includes a motor 601 and a gear set 602, the motor 601 is located at the outer side of the sand containing cavity 3 and is mounted on the rear end cover 105, an output shaft of the motor 601 is in transmission connection with the rear pivot 8 through the gear set 602, the motor 601 is started to drive the rear pivot 8 to rotate, and then the rear pivot 8 drives the screen plate 2 to rotate. The gear set 602 in this embodiment may also be replaced by a chain or timing belt. For accurate control of the screen deck 2 position, the motor 601 may be a stepper motor or a servo motor. The driving mechanism 6 in the present disclosure is not limited to the structure adopted in the present embodiment, and in some embodiments, the driving mechanism 6 may be a link mechanism driven by an electric push rod, and other driving mechanisms 6 capable of driving the movable end 202 to rotate around the connection end 201 may achieve the purpose of the present utility model.

As shown in fig. 13, the screen plate 2 in this embodiment is an arc plate, and the inner diameter of the connecting body 103 is equal to the outer diameter of the screen plate 2, so that the second surface 205 of the screen plate 2 is matched with the inner wall of the cylinder 1, so that the second surface 205 can be in seamless fit with the inner wall of the cylinder 1, and the inner space of the cylinder 1 is utilized to the maximum. In some embodiments, the screen plate 2 may be a square plate, provided that it is only necessary to prevent the cat from rubbing on dirt, regardless of the space within the cylinder 1.

Fig. 4 to 8 show the whole process of cleaning cat feces in this embodiment in sequence. In the normal state of the drum, as shown in fig. 4, the movable end 202 is at the second position, a layer of cat litter 5 is laid at the bottom of the litter cavity 3, and a cat can enter the litter cavity 3 from the entrance 101 to drain, and normally, the cat will actively bury the excrement 9 (i.e. faeces) after the cat finishes the excretion; when the intelligent cat litter box detects that a cat leaves the litter cavity 3, the motor 601 is started and drives the movable end 202 to rotate from the second position to the first position shown in fig. 5, a temporary storage bin 4 with a fusiform cross section is formed between the screen plate 2 and the barrel 1, the movable end 202 is positioned above the litter surface, and the temporary storage bin 4 is positioned at one side of the cat litter 5; then the cylinder 1 is driven by the intelligent cat litter box to rotate clockwise around the axis of the cylinder, after the cat litter layer is contacted with the sieve plate 2, the cat litter 5 which is not blocked enters the temporary storage bin 4 through the sieve holes 203, and the cat litter 9 which is blocked outside the temporary storage bin 4, and the stage is shown in figures 5 to 7; as shown in fig. 7 to 8, when the cylinder 1 continues to rotate clockwise, the cat litter 9 slides down the second surface 205 to the litter port 102 by gravity, so that the cat litter 9 is discharged; the drum 1 is then driven to rotate counter-clockwise to the position shown in figure 4 and the screen deck 2 is driven back to the second position by the motor 601.

In this embodiment, the second surface 205 is the surface that the sieve plate 2 contacts with cat feces, and the first surface 204 contacts with cleaner cat litter, so that the first surface 204 can keep clean for a long time, and the second surface 205 can not contact with cat hair all the time in the using process, so that the roller provided by the embodiment can avoid the cat hair from rubbing dirt, and is favorable for improving user experience.

Example 2

Referring to fig. 10 to 17, the difference between the present embodiment and embodiment 1 is only that the structure of the cylinder 1, the cylinder 1 in the present embodiment includes a connecting body 103, a front end cover 104 and a rear end cover 105, the connecting body 103 is an arc plate, the front end cover 104 and the rear end cover 105 are respectively connected with two ends of the connecting body 103 and form an open sand containing cavity 3, a defecation port 102 is provided on the connecting body 103, and a connecting end 201 is rotatably connected with at least one of the connecting body 103, the front end cover 104 and the rear end cover 105. The central angle corresponding to the sieve plate 2 is smaller than the central angle corresponding to the connecting body 103, so that the connecting body 103 is ensured to have enough space for paving cat litter 5.

The sand holding cavity 3 in this embodiment adopts a structure with an open top, and the open top of the sand holding cavity 3 can be used as the inlet 101 (see fig. 18), and in addition, the open top of the front end cover 104 can also be used as the inlet 101. In the embodiment, the sand containing cavity 3 adopts an open structural design, so that the screen plate 2 can be conveniently disassembled and cleaned.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (11)

1. A cylinder for separating cat litter and cat excrement and urine, includes barrel and sieve, the barrel has flourishing sand chamber, still be equipped with on the barrel with flourishing sand chamber intercommunication's access & exit and defecation mouth, its characterized in that: the sieve plate is provided with a connecting end and a movable end, a sieve mesh is arranged on the region, close to the movable end, of the sieve plate, the connecting end is connected with the cylinder body, and the movable end is provided with a first position and a second position relative to the cylinder body; when the movable end is at the first position, a temporary storage bin is defined between the sieve plate and the cylinder body, and the temporary storage bin and the defecation port are respectively positioned at two sides of the connecting end; the movable end moves to the second position by rotating around the connecting end by a certain angle from the first position;

the roller further comprises a driving mechanism connected with the cylinder body, wherein the driving mechanism is used for driving the sieve plate to rotate around the connecting end so as to enable the movable end to be switched between a first position and a second position.

2. The drum for separating cat litter from cat litter as set forth in claim 1, wherein: the screen plate has a first face and a second face between the movable end and the connecting end; when the movable end is at the first position, the first surface and the inner wall of the cylinder body define the temporary storage bin; the second face is adjacent the inner wall of the barrel when the movable end is in the second position.

3. The drum for separating cat litter from cat litter as set forth in claim 2, wherein: when the movable end is positioned at the second position, the second surface is attached to the inner wall of the cylinder body.

4. A drum for separating cat litter from cat litter as claimed in any one of claims 1-3, wherein: the barrel comprises a connecting body, a front end cover and a rear end cover, wherein the connecting body is of a tubular structure, the front end cover and the rear end cover are respectively connected with two ends of the connecting body to define a sand containing cavity, an inlet and an outlet are formed in the front end cover, a defecation port is formed in the connecting body, and the connecting end is at least in rotary connection with one of the connecting body, the front end cover and the rear end cover.

5. The drum for separating cat litter from cat litter as set forth in claim 4, wherein: and two ends of the connecting end are respectively pivoted with the front end cover and the rear end cover.

6. The drum for separating cat litter from cat litter as set forth in claim 5, wherein: the front end cover is provided with a front shaft hole, the rear end cover is provided with a rear shaft hole, the front shaft hole extends into the front shaft hole, the rear shaft hole extends into the rear shaft hole and penetrates through the rear end cover, and the driving mechanism is arranged on the rear end cover or the connecting body and is in transmission connection with the rear shaft hole.

7. A drum for separating cat litter from cat litter as claimed in any one of claims 1-3, wherein: the barrel comprises a connecting body, a front end cover and a rear end cover, wherein the connecting body is an arc plate, the front end cover and the rear end cover are respectively connected with two ends of the connecting body and form an open sand containing cavity, the excrement discharging opening is formed in the connecting body, and the connecting end is at least rotatably connected with one of the connecting body, the front end cover and the rear end cover.

8. The drum for separating cat litter from cat litter as set forth in claim 7, wherein: and two ends of the connecting end are respectively pivoted with the front end cover and the rear end cover.

9. The drum for separating cat litter from cat litter as set forth in claim 8, wherein: the front end cover is provided with a front shaft hole, the rear end cover is provided with a rear shaft hole, the front shaft hole extends into the front shaft hole, the rear shaft hole extends into the rear shaft hole and penetrates through the rear end cover, and the driving mechanism is arranged on the rear end cover or the connecting body and is in transmission connection with the rear shaft hole.

10. The drum for separating cat litter from cat litter as set forth in claim 4, wherein: the sieve plate is an arc plate, and the inner diameter of the connecting body is equal to the outer diameter of the sieve plate.

11. The drum for separating cat litter from cat litter as set forth in claim 7, wherein: the sieve plate is an arc plate, and the inner diameter of the connecting body is equal to the outer diameter of the sieve plate.