KR102534462B1 - Cat toilet - Google Patents

Abstract

The present invention includes a housing including an inner space, on one side wall of which a groove-shaped inlet is formed to open the inner space; and a ventilation unit installed on an upper surface of the housing to ventilate air inside the housing.

Description

Cat toilet{CAT TOILET}

The present invention relates to a cat litter box.

It is common for cat litter boxes to be filled with cat-friendly sand and let the cat defecate.

The cat toilet is used by forming an entrance in a housing having a certain height so that cats can enter and exit, and filling the inside with sand. Specifically, since a certain amount of sand must be accommodated and cats have a habit of digging sand after defecation, the housing is formed to have a certain height so that the sand can be prevented from bouncing outward when the cat digs the sand. An entrance is formed so that the cat can enter and exit, and generally, the cat toilet is formed in a shielded form except for the entrance.

Therefore, since it is difficult to ventilate the air inside the cat toilet, there is a problem that the smell of defecation spreads inside the cat toilet for a long time after the cat defecates.

As a result, as the odor spreads inside the cat toilet for a long time, the use of the toilet by cats decreases, and problems such as bacterial propagation in the cat toilet may occur.

Republic of Korea Patent Registration No. 10-1126418 (2012.03.06)

The present invention relates to a cat toilet capable of ventilating the air inside the cat toilet.

In addition, the present invention relates to a cat toilet that can maintain cleanliness of the cat toilet and not reduce the use of the cat toilet by ventilating an odor such as the smell of excretion inside the cat toilet.

In addition, the present invention relates to a cat toilet that can be conveniently installed in a cat toilet that has been used previously, is formed to be fastened and detachable for each of a plurality of filters, and each filter part can be replaced as necessary.

According to one embodiment of the present invention, the housing including an inner space, one side wall is formed with a groove-shaped inlet to open the inner space; and a ventilation unit installed on an upper surface of the housing to ventilate air inside the housing.

In addition, the ventilation unit, a first filter unit consisting of a paper filter; A second filter unit composed of a charcoal filter; a third filter unit generating negative ions; a blower unit discharging air from the inner space of the housing to the outside; And it is possible to provide a cat toilet, characterized in that it comprises a; bracket portion that can be fastened to and detached from the housing.

In addition, the first filter unit, the second filter unit, the third filter unit, and the blower unit are formed to be fastened and separated, respectively, and can provide a cat toilet characterized in that they are replaceable.

In addition, the ventilation unit senses that an odor is generated inside the housing, starts operating after a predetermined time a from the time when the odor occurs, and operates for a predetermined time b to ventilate the air inside the housing. cat toilets can be provided.

In addition, the housing may include a lower housing in which sand may be accommodated in the inner space and formed in a box shape with an open upper surface; And an upper housing including an inner space, formed in a box shape with a lower surface open, formed to be coupled and detachable around an upper end of the lower housing, and having the inlet formed on one side wall; A cat litter box can be provided.

According to an embodiment of the present invention, the air inside the cat toilet can be ventilated.

In addition, it is possible to maintain the cleanliness of the cat toilet and not reduce the use of the cat toilet by ventilating odors such as the smell of excretion inside the cat toilet.

In addition, it can be conveniently installed in a cat toilet that has been used in the past, and each of a plurality of filters is formed to be fastened and separated, so that each filter part can be replaced if necessary.

1 is a view showing a cat toilet according to an embodiment of the present invention
2 is a front view of a cat toilet according to an embodiment of the present invention
3 is a side view of a cat toilet according to an embodiment of the present invention
4 is a plan view of a cat toilet according to an embodiment of the present invention
5 and 6 are views showing a coupling structure of a filter unit according to an embodiment of the present invention
Figure 7 is a block diagram showing the configuration of the operation control unit of the cat toilet according to an embodiment of the present invention
8 and 9 are views showing a sand collector according to an embodiment of the present invention
10 and 11 are views showing a housing in which an opening and a door are installed;
Figure 12 is a view showing a cross-section of a state in which the defecation discharge unit is further installed inside the housing according to an embodiment of the present invention
Figure 13 is a view showing the configuration of the moving unit of the bowel discharge unit according to Figure 12
14 is a view showing a state in which the defecation discharge unit according to FIG. 12 is operated

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is only an example and the present invention is not limited thereto.

In describing the present invention, if it is determined that a detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, the terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, the definition should be made based on the contents throughout this specification.

The technical spirit of the present invention is determined by the claims, and the following examples are only one means for efficiently explaining the technical spirit of the present invention to those skilled in the art to which the present invention belongs.

1 is a view showing a cat toilet 1 according to an embodiment of the present invention, FIG. 2 is a front view of the cat toilet 1 according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention 4 is a plan view of the cat toilet 1 according to an embodiment of the present invention, and FIGS. 5 and 6 show a coupling structure of a filter unit according to an embodiment of the present invention. is the drawing shown.

1 to 6, a cat toilet 1 according to an embodiment of the present invention includes a housing 10 and a vent 20.

The housing 10 includes an inner space 13, and a groove-shaped inlet 121 may be formed on one side wall to open the inner space 13. For example, the housing 10 is formed in a rectangular parallelepiped shape, and may be formed in a shape with an empty interior. That is, the housing 10 may be formed in a rectangular parallelepiped shape including the inner space 13 .

The housing 10 may include a lower housing 11 and an upper housing 12 . That is, the housing 10 is formed to be separated into upper and lower parts, and can be mutually coupled and separated.

Sand may be accommodated in the lower housing 11 in the inner space 13 and may be formed in a box shape with an open upper surface. Sand used for cat defecation may be accommodated at a predetermined height of the lower housing 11 .

The upper housing 12 includes an inner space 13 and may be formed in a box shape with an open lower surface. The circumference of the lower end of the upper housing 10 may be coupled to and detachable from the circumference of the upper end of the lower housing 11 .

In addition, an entrance 121 through which a cat can come in and out may be formed on one side wall of the upper housing 12 . However, in this embodiment, the inlet 121 formed in the upper housing 12 is described as an example, but is not limited thereto, and the inlet 121 is any one of the upper housing 12 and the lower housing 11 can be formed in In addition, the inlet 121 may be formed with a height and width that allow cats such as small and large cats to easily enter and exit, so that it can be used regardless of the body shape or size of the cat.

The ventilation unit 20 is installed on the upper surface of the housing 10 to ventilate air in the inner space 13 of the housing 10 . The ventilation unit 20 includes a first filter unit 21 , a second filter unit 22 , a third filter unit 23 , a blowing unit 24 and a bracket unit 25 .

The first filter unit 21 may be configured as a paper filter, the second filter unit 22 may be configured as a charcoal filter, and the third filter unit 23 may be configured as a device that generates negative ions. At this time, the third filter unit 23 includes a driving unit 823 of a negative ion generating device that generates negative ions, and may receive power from the outside or be operated in a charging manner.

However, the types of the first filter unit 21, the second filter unit 22, and the third filter unit 23 are not limited thereto, and may be configured with one of various filters used on the market.

The blower 24 includes a fan and may be operated to discharge air from the inner space 13 of the housing 10 to the outside. The blower 24 may receive power from the outside or operate in a charging manner.

The bracket unit 25 may connect and separate the ventilation unit 20 from the housing 10 . For example, a hole having a size corresponding to the diameter or size of the filter unit may be formed in the upper housing 12, and the hole formed in the upper housing 12 may communicate with the filter unit. At this time, the bracket unit 25 may be fixed to the lower circumferential surface of the filter unit coupled to the upper housing 12 at the lowermost end and fastened to the upper surface of the upper housing 12 . For example, the bracket part 25 may be fastened to the upper housing 12 by bolt fastening.

Here, referring to FIGS. 5 and 6, the first filter unit 21, the second filter unit 22, the third filter unit 23, and the blowing unit 24 are formed to be fastened and separated, respectively. each can be replaced. Coupling ribs 201, coupling protrusions 202, and coupling grooves 203 may be formed on the upper and lower portions of the filter unit so as to be fastened and separated from each other.

First, referring to FIG. 5 , coupling ribs 201 and coupling protrusions 202 may be formed at the bottom of the filter unit, and coupling grooves 203 may be formed at the top of the filter unit.

Specifically, the first filter unit 21 may be fixed to the upper housing 12 by brackets. A coupling rib 201 may protrude from a lower portion of the second filter unit 22 coupled to the first filter unit 21 .

The coupling rib 201 may protrude from a lower end of the second filter unit 22 to a predetermined length so as to contact the inner circumferential surface of the first filter unit 21 and be inserted into the first filter unit 21 .

The coupling protrusion 202 may protrude a predetermined length from the outer circumferential surface of the coupling rib 201 . For example, two engaging protrusions 202 may be formed on opposite sides of each other along the circumference of the engaging rib 201 .

The coupling groove 203 may be formed on an upper inner circumferential surface of the second filter unit 22 . That is, the coupling groove 203 may be formed on the inner circumferential surface of the second filter unit 22 in an area where the coupling rib 201 protrudes from the first filter unit 21 is inserted and makes contact with the coupling rib 201 . Coupling groove 203 may be formed in an "L" shape. The coupling groove 203 may be formed on the same line as the coupling protrusion 202 vertically.

Therefore, when the coupling rib 201 protruding from the second filter unit 22 is inserted into the inner circumferential surface of the first filter unit 21, the coupling protrusion 202 of the second filter unit 22 is the first filter unit. It can be inserted into the coupling groove 203 formed in (21).

Thereafter, when the second filter unit 22 is rotated along the “L” shape of the coupling groove 203 along the direction in which the coupling groove 203 extends, the coupling protrusion 202 is fitted into the coupling groove 203. , the first filter unit 21 and the second filter unit 22 may be fastened.

When the first filter unit 21 and the second filter unit 22 are separated, the coupling protrusion 202 can be separated from the coupling groove 203 after rotating the second filter unit 22 in the opposite direction. .

Similarly, the second filter unit 22 and the third filter unit 23 may be coupled and separated, and the third filter unit 23 and the blowing unit 24 may be coupled and separated.

Referring to FIG. 6 , coupling ribs 201 and coupling grooves 203 may be formed on the top of the filter unit, and coupling protrusions 202 may be formed on the bottom of the filter unit.

Specifically, the first filter unit 21 may be fixed to the upper housing 12 by brackets. A coupling protrusion 202 may protrude inward from the lower inner circumferential surface of the second filter unit 22 coupled to the first filter unit 21 .

The coupling rib 201 may protrude from the top of the first filter unit 21 to a predetermined length so as to contact the inner circumferential surface of the second filter unit 22 and be inserted into the second filter unit 22 .

Two coupling grooves 203 may be formed on opposite sides of each other along the circumference of the coupling rib 201 on the outer circumferential surface of the coupling rib 201 . Coupling groove 203 may be formed in an "L" shape. The coupling groove 203 may be formed on the same line as the coupling protrusion 202 vertically.

The coupling protrusion 202 may be formed on the lower inner circumferential surface of the second filter unit 22 .

When the coupling ribs 201 protruding from the first filter unit 21 are inserted into the inner circumferential surface of the second filter unit 22, the coupling protrusions 202 of the second filter unit 22 form the first filter unit 21. ) It can be inserted into the coupling groove 203 formed in.

Thereafter, when the second filter unit 22 is rotated along the “L” shape of the coupling groove 203 along the direction in which the coupling groove 203 extends, the coupling protrusion 202 is fitted into the coupling groove 203. , the first filter unit 21 and the second filter unit 22 may be fastened.

When the first filter unit 21 and the second filter unit 22 are separated, the coupling protrusion 202 can be separated from the coupling groove 203 after rotating the second filter unit 22 in the opposite direction. .

Similarly, the second filter unit 22 and the third filter unit 23 may be coupled and separated, and the third filter unit 23 and the blowing unit 24 may be coupled and separated.

7 is a block diagram showing the configuration of the operation control unit 30 of the cat toilet 1 according to an embodiment of the present invention.

Referring to FIG. 7 , the cat toilet 1 according to an embodiment of the present invention may further include an operation control unit 30.

The operation control unit 30 may control the operation time and operation time of the ventilation unit 20 .

The operation control unit 30 detects that an odor is generated inside the housing 10, and controls the ventilation unit 20 to start operating after a preset time a from when the odor occurs, and operates for a preset time b. By doing so, the air inside the housing 10 can be ventilated.

The operation control unit 30 may include a motion detection sensor 31 , a sound detection sensor 32 , an odor detection sensor 33 and a control unit 34 .

The motion sensor 31 may detect movement inside the housing 10 . Therefore, it is possible to check whether or not there is a cat inside the housing 10 .

The sound sensor 32 detects a sound generated inside the housing 10 and can check whether a cat is inside the housing 10 or not.

The odor sensor 33 may detect odor generated inside the housing 10 . For example, odorous fine substances generated from bowel movements may be detected.

The control unit 34 may control the ventilation unit 20 according to data detected by the motion sensor 31 , the sound sensor 32 , and the odor sensor 33 .

For example, the controller 34 checks whether the cat is inside the housing 10 through the motion sensor 31 or the sound sensor 32, and the cat uses the toilet inside the housing 10. When there is, the ventilation unit 20 can be made inoperable. If the ventilation unit 20 is suddenly operated while the cat is inside the housing 10, the cat may be startled by the operation sound of the ventilation unit 24 or the filter. At this time, the ventilation unit 20 is not operated.

After motion or sound of an object is detected by the motion sensor 31 or the sound sensor 32, if the motion or sound disappears again within a predetermined time, movement for a predetermined time a from the point in time at which the motion and sound disappears. When the state without sound or sound is maintained, it is determined that the cat has finished using the toilet, and the control unit 34 can operate the ventilation unit 20. The ventilation unit 20 starts to operate after a predetermined time a (eg, 15 seconds) from the time when motion and sound are lost, and operates for a predetermined time b (eg, 5 minutes to 15 minutes) , The air inside the housing 10 can be ventilated.

Alternatively, the control unit 34 detects that an odor is generated inside the housing 10 by the odor sensor 33, and detects the motion or sound of an object detected by the motion sensor 31 or the sound sensor 32. When it disappears for a predetermined time a, the ventilation unit 20 may be operated.

That is, the control unit 34 controls the ventilation unit 20 to start operating after a preset time a when no movement or sound is detected from the time of occurrence of the odor, and operates for a preset time b so that the housing 10 ) can ventilate the inside air.

8 and 9 are views showing a sand collector according to an embodiment of the present invention.

Referring to FIGS. 8 and 9 , the cat toilet 1 may further include a sand collection unit 40 . When the cat comes out of the housing 10 after defecation, the sand collection unit 40 may collect sand attached to the soles of the cat's paws.

The sand collector 40 may include a scaffold 41 and a discharge plate 42 .

The scaffold 41 is formed of a plate having a plurality of collection holes 411, and a space in which the discharge plate 42 can be withdrawn and drawn may be formed.

The discharge plate 42 can be slidably drawn in and out from the inside of the scaffold 41 . The discharge plate 42 is formed in a shape in which an upper surface is opened and an accommodating portion 421 is formed, and sand introduced through the collection hole 411 may be collected.

That is, when the cat comes out of the housing 10, it first steps on the sand collector 40 around the housing 10, so that it can play a role of shaking off sand from the soles of the cat's feet.

The sand collector 40 may be installed on a sidewall of the housing 10 . Specifically, the housing 10 may be installed on both side walls of one side wall where the inlet 121 is formed and one side wall where the inlet 121 is formed.

At this time, when installed on one side wall where the inlet 121 is formed, it may be installed to be drawn out in a sliding manner in the lower part of the inlet 121 of the housing 10 .

In addition, when installed on both side walls of one side wall in which the inlet 121 is formed, it may be connected by the connection part 50. The connection part 50 protrudes a predetermined length outward from both side walls, and may be connected to the sand collection part 40 by a hinge 51. The sand collector 40 may be rotated outwardly and unfolded in a state in which the sand collector 40 is in close contact with the side wall by the hinge 51.

Therefore, if necessary, the sand collector 40 on the side of the inlet 121 can be pulled out in a sliding manner, and the sand collectors 40 on both sides can be rotated based on the hinge 51 and unfolded for use.

10 and 11 are views showing the housing 10 in which the opening 122 and the door 84 are installed.

Referring to FIGS. 10 and 11 , a window portion 60 and a door portion 70 may be formed on a sidewall of the housing 10 .

Some cats feel afraid to defecate in the high housing 10. Specifically, there is a cat who is afraid of entering the high housing 10 because the view is blocked. Therefore, in order to increase the height of the housing 10 to accommodate a lot of sand and at the same time provide the housing 10 in which the cat does not feel fear, a window portion 60 or a door portion 70 is formed in the housing 10. It can be. In this embodiment, the window portion 60 or the door portion 70 is formed in the lower housing 11, but is illustrated as an example, but is not limited thereto, and the window portion 60 or the door portion in the upper housing 12 is illustrated. (70) may be formed.

It may be formed at one height of the sidewall of the housing 10 . At this time, both the window portion 60 and the door portion 70 may be formed, or only one of the two may be formed.

The window unit 60 may be formed of a material such as glass or transparent plastic and installed in one area of the side wall. Therefore, it is possible to make the exterior visible to the cat entering the housing 10.

The door unit 70 may be installed in one area of the side wall to enable opening. Accordingly, one area of the housing 10 may be opened as needed.

The door unit 70 may include a first door 71 , a second door 72 , a third door 73 and a guide unit 74 .

A guide portion 74 may be formed on an outer surface of the first door 71 , and the second door 72 may be slidably coupled to the guide portion 74 formed on the first door 71 . In addition, a guide portion 74 may be formed on an outer surface of the second door 72 , and the third door 73 may be slidably coupled to the guide portion 74 formed on the second door 72 .

In this way, the first door 71, the second door 72, and the third door 73 are slidably connected to each other so that the inner space 13 can be opened in a sliding manner.

Therefore, depending on the cat, it is possible to prevent the view from being blocked within the housing 10 (10) through the door unit 70 or the window unit 60.

12 is a view showing a cross-section of a state in which the defecation discharge unit 80 is further installed inside the housing 10 according to an embodiment of the present invention, and FIG. 13 is a moving part of the defecation discharge unit 80 according to FIG. 12 A diagram showing the configuration, and FIG. 14 is a diagram showing a state in which the defecation discharge unit 80 according to FIG. 12 is operated.

12 to 14, the cat toilet 1 according to one embodiment of the present invention may further include a feces discharge unit 80.

The defecation discharge unit 80 includes a moving shaft 81, a rotation unit 82, a collection plate 83, an opening/closing unit 84, and a collection box 85.

The moving shaft 81 may be installed on both left and right sidewalls of the housing 10 . The moving shaft 81 may be formed to extend from the bottom of the lower housing 11 to the top of the upper housing 12 . When the upper housing 12 and the lower housing 11 are coupled, the moving shaft 81 formed on the upper housing 12 and the moving shaft 81 formed on the lower housing 11 may be positioned on the same line and connected to each other. . A guide groove 811 for guiding the vertical linear reciprocating movement of the rotation unit 82 may be formed on the moving shaft 81 . The guide protrusion 822 of the rotation unit 82 is fastened to the guide groove 811, so that the guide protrusion 822 can move up and down along the guide groove 811.

The rotation unit 82 moves up and down along the moving shaft 81, and may rotate the collecting plate 83 at a predetermined angle. Specifically, as shown in FIG. 13 , the rotation unit 82 includes a connecting plate 821, a guide protrusion 822, a driving unit 823, and a shaft 824.

The connecting plate 821 may be formed of a block in the form of a circular plate of a predetermined size or a block in the form of a rectangular plate. A guide protrusion 822 protrudes from one side of the connection plate 821 and may be connected to the moving shaft 81 . In addition, the driving unit 823 and the shaft 824 may protrude from the other side of the connection plate 821 .

The driving unit 823 may include two driving devices to control the movement of the guide protrusion 822 up and down along the guide groove 811 and the axial rotation of the shaft 824 , respectively.

The collecting plate 83 may be installed on the rotating part 82 installed on both side walls of the housing 10 to face each other. That is, the shaft 824 of the rotation unit 82 may be inserted and installed on both side surfaces of the collection plate 83 . The collecting plate 83 may rotate at a predetermined angle as the shaft 824 rotates. A plurality of through-holes 831 are spaced apart from each other in the collection plate 83, so that sand located on the upper side of the collection plate 83 flows down.

The opening/closing part 84 may be installed in the upper housing 12 to open or close the opening part 122 formed on the upper part of the upper housing 12 .

The collection box 85 is installed above the upper housing 12 in the area including the opening 122, and feces discharged through the opening 122 can be collected. The collection box 85 may be detachably installed in the upper housing 12 .

Specifically, describing the operation method of the bowel discharge unit 80, sand may be accommodated in the lower housing 11 in a state where the collection plate 83 is positioned below the moving shaft 81. That is, sand may be accumulated to a predetermined height on the upper side of the collection plate 83 .

After that, you can see that the cat has defecation multiple times or uses the toilet. For example, the number of uses may be confirmed through the motion sensor 31 or the sound sensor 32 .

When it is determined that the toilet is used a predetermined number of times or more, or when the ventilation unit 20 is operated more than a predetermined number of times, the defecation discharge unit 80 may be automatically operated.

The rotating part 82 may rise along the moving shaft 81 . That is, as the guide protrusion 822 rises along the guide groove 811 , the rotation unit 82 and the collecting plate 83 may be positioned above the upper housing 12 . At this time, as the collecting plate 83 rises, the sand escapes through the through hole 831 formed in the collecting plate 83 and can be maintained in the lower housing 11 . That is, only defecation may be placed on the collection plate 83.

Then, after the inner space of the housing 10 is opened by the opening/closing part 84 of the collecting box 85, the shaft 824 of the rotating part 82 is rotated so that the end of the collecting plate 83 is moved to the collecting box. (85) can be tilted to the side.

Therefore, the feces on the collection plate 83 may descend along the inclination of the collection plate 83 and be discharged to the collection box 85 . Thereafter, the opening/closing part 84 may cover the collection box 85 so that the smell of excrement from the collection box 85 does not flow into the housing 10 .

Thereafter, when sand is replaced by a manager or the inside of the housing 10 is maintained, the rotating part 82 descends along the moving shaft 81 in a state in which the lower housing 11 is empty, so that the lower housing 11 can be positioned.

Therefore, in a situation where the companion cannot clean up the bowel movements for a long time, it is possible to automatically collect the bowel movements as well as ventilate the air and odor inside the housing 10.

Although representative embodiments of the present invention have been described in detail above, those skilled in the art will understand that various modifications are possible to the above-described embodiments without departing from the scope of the present invention. . Therefore, the scope of the present invention should not be limited to the described embodiments and should not be defined, and should be defined by not only the claims to be described later, but also those equivalent to these claims.

1: cat toilet
10: housing 11: lower housing
12: upper housing 121: entrance
122: opening 13: inner space
20: ventilation unit 21: first filter unit
22: second filter unit 23: third filter unit
24: blower part 25: bracket part
201: coupling rib 202: coupling protrusion
203: coupling groove 30: operation control unit
31: motion sensor 32: sound sensor
33: odor detection sensor 34: control unit
40: sand collector 41: scaffolding
411: collection hole 42: discharge plate
421: receiving part 50: fastening part
51: hinge axis 60: window part
70: door unit 71: first door
72: second door 73: third door
74: guide unit 80: defecation discharge unit
81: moving axis 811: guide groove
82: rotating part 821: connecting plate
822: guide protrusion 823: driving unit
824: shaft 83: collection plate
831: through hole 84: opening and closing part
85: collection box

Claims (5)

A housing including an inner space and having a groove-shaped inlet formed on one side wall to open the inner space;
a ventilation unit installed on an upper surface of the housing to ventilate air inside the housing; and
A defecation discharge unit installed in the housing and capable of automatically collecting defecation;
The bowel discharge unit,
moving shafts installed on both side walls of the housing and extending from the bottom to the top of the housing;
Doedoe moving up and down along the moving shaft, a rotatable rotating part;
It is formed in a plate shape and has a plurality of through holes spaced apart so that sand located on the upper side can flow down, installed in the rotating part, and moved up and down together as the rotating part moves up and down along the moving shaft, and by the rotation of the rotating part a collection plate that can be inclined at a predetermined angle;
an opening and closing portion capable of opening or shielding an opening portion formed on an upper portion of the housing; and
A cat toilet, characterized in that it comprises a; collection box installed on the upper part of the housing, in which the feces discharged through the opening are collected.
The method of claim 1,
The ventilation unit,
A first filter unit composed of a paper filter;
A second filter unit composed of a charcoal filter;
a third filter unit generating negative ions;
a blower unit discharging air from the inner space of the housing to the outside; and
A cat litter box comprising a bracket part that can be fastened and separated from the housing.
The method of claim 2,
The first filter unit, the second filter unit, the third filter unit, and the blowing unit are formed to be fastened and separated, respectively, and are respectively replaceable.
The method of claim 1,
The ventilation unit,
The cat toilet, characterized in that the occurrence of the odor inside the housing is sensed, the operation starts after a predetermined time a from the time of occurrence of the odor, and is operated for a predetermined time b to ventilate the air inside the housing.
The method of claim 1,
the housing,
Sand can be accommodated in the inner space, the lower housing is formed in the form of a box with an open upper surface; and
An upper housing comprising an inner space, formed in the form of a box with an open lower surface, formed to be coupled and detachable around the upper end of the lower housing, and having the inlet formed on one side wall; cat characterized in that it comprises a restroom.

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