Cat litter box with replaceable activated carbon layer

Abstract

The utility model relates to a cat litter basin with replaceable activated carbon layer belongs to cat litter basin technical field, specifically includes basin body and sets up the protective cover on the basin body, the bottom of basin body is provided with the filter shell, the bottom of filter shell is provided with the antiskid support block, the circumference of basin body is provided with the annular seal groove, the top circumference of filter shell is provided with the annular seal protruding, the annular seal protruding is matched with annular seal groove, and the annular seal protruding is used for inserting in annular seal groove, the top of annular seal groove is provided with a plurality of negative pressure air suction holes, and the filter shell is built -in airflow channel, the annular seal protruding is provided with a plurality of air guide holes, and air guide hole is linked with airflow channel, and the airflow channel is installed with activated carbon filter assembly, the bottom of filter shell is installed with the negative pressure fan that communicates with airflow channel, the utility model provides a simple structure, reasonable in design, can effectively remove peculiar smell, and is convenient for maintaining.

Description

Technical Field

[0001] This utility model relates to a cat litter box with a replaceable activated carbon layer, belonging to the technical field of cat litter boxes. Background Technology

[0002] Currently, most cat litter boxes are single-layer or multi-layer plastic basins, relying on the cat litter itself to absorb odors or additional deodorizing agents. The drawbacks are: 1. Odors spread quickly, requiring frequent replacement of the entire litter box, resulting in high consumable costs; 2. Deodorizing agents are mostly chemical fragrances, which can irritate pets and humans; 3. Activated charcoal packets are usually buried directly in the litter, making them fragile, dusty, and contaminating the litter when replaced; 4. While multi-layer drawer-type litter boxes have drawers, the activated charcoal layer becomes saturated quickly after contact with urine, requiring the entire box to be pulled out for cleaning, which is cumbersome.

[0003] Therefore, there is an urgent need for a cat litter box with a simple structure, quick activated carbon replacement, and physical isolation from cat litter. Utility Model Content

[0004] To address the technical problems existing in the prior art, this utility model provides a cat litter box with a replaceable activated carbon layer that is simple in structure, reasonably designed, can effectively remove odors, and is easy to maintain.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is a cat litter box with a replaceable activated carbon layer, including a basin body and a protective cover set on the basin body. The bottom of the basin body is provided with a filter shell, and the bottom of the filter shell is provided with an anti-slip support block. An annular sealing groove is provided on the circumference of the basin body, and an annular sealing protrusion is provided on the top circumference of the filter shell. The annular sealing protrusion cooperates with the annular sealing groove and is used for insertion into the annular sealing groove. Multiple negative pressure air intake holes are provided on the top of the annular sealing groove. An airflow channel is built into the filter shell. Multiple air guide holes are provided on the annular sealing protrusion and are connected to the airflow channel. An activated carbon filter assembly is installed in the airflow channel. A negative pressure fan connected to the airflow channel is installed at the bottom of the filter shell.

[0006] Preferably, the filter housing is a basin-shaped structure and is fitted onto the outside of the basin. An annular positioning protrusion is provided on the outer circumference of the filter housing. The bottom circumference of the protective cover extends to the outside of the annular positioning protrusion. An annular sealing ring is fixed on the annular positioning protrusion and is disposed between the annular positioning protrusion and the protective cover.

[0007] Preferably, both the air guide hole and the negative pressure air intake hole are provided with fine mesh.

[0008] Preferably, the wall of the filter housing is a sandwich structure, the airflow channel is disposed within the sandwich structure, filter assembly mounting holes are respectively opened on both sides of the wall of the filter housing, the activated carbon filter assembly is installed in the filter assembly mounting holes, and a sealing film is provided between the back of the activated carbon filter assembly and the sandwich of the filter housing.

[0009] Preferably, the activated carbon filter assembly includes a filter box and a fixing plate installed on the filter box. The fixing plate is fixed to the filter housing by screws. The bottom and top of the filter box are provided with supporting mesh. Between the supporting mesh, from top to bottom, there are a filter layer for removing large particulate pollutants, an adsorption layer for removing small particulate pollutants and toxic gases, and a bactericidal layer for killing bacteria and viruses.

[0010] Preferably, the filter layer is made of submicron multilayer nonwoven fabric with a conical honeycomb three-dimensional dust filtration structure, i.e., a 3D structure, and the pore size of the filter layer gradually decreases from the first layer to the last layer; the adsorption layer is made of activated carbon fiber; and the sterilization layer is made of a mesh woven from sterilization fiber or sterilization nonwoven fabric.

[0011] Compared with the prior art, the present invention has the following technical effects: The present invention adopts a filter shell arranged at the bottom of the litter box, and the filter shell is connected to the top of the litter box through air holes. Due to the gathering effect of the protective cover, the odor is gathered inside the protective cover. The odor is drawn into the filter shell from the negative pressure air intake hole on the litter box by the negative pressure fan, and after being filtered by the activated carbon filter component, it is discharged from the bottom of the filter shell. The entire structure can effectively prevent the odor from overflowing, and the airflow is guided through the filter shell. The structure is small and compact and does not take up space.

[0012] In addition, the activated carbon filter assembly is installed on the outside of the filter housing. The filter element can be quickly replaced by disassembling the activated carbon filter assembly, which is convenient for disassembly and assembly and facilitates later maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a side view of the structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of this utility model.

[0016] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] like Figures 1 to 3 As shown, a cat litter box with a replaceable activated carbon layer includes a basin body 1 and a protective cover 2 installed on the basin body. A filter shell 3 is provided at the bottom of the basin body 1, and an anti-slip support block 4 is provided at the bottom of the filter shell 3. An annular sealing groove 5 is provided on the circumference of the basin body 1, and an annular sealing protrusion 6 is provided on the top circumference of the filter shell 3. The annular sealing protrusion 6 cooperates with the annular sealing groove 5 and is used to be inserted into the annular sealing groove 5. Multiple negative pressure air intake holes 7 are provided at the top of the annular sealing groove 5. An airflow channel 9 is built into the filter shell 3. Multiple air guide holes 8 are provided on the annular sealing protrusion 6 and are connected to the airflow channel 9. An activated carbon filter assembly 10 is installed in the airflow channel 9, and a negative pressure fan 11 connected to the airflow channel 9 is installed at the bottom of the filter shell 3.

[0019] This invention features a protective cover 2 installed on the top of the litter box 1 and a filter housing 3 installed at the bottom. The protective cover 2 serves a protective function, preventing cat litter from falling outside, and also helps to collect and treat odors. The filter housing 3 is fitted onto the bottom of the litter box 1, achieving a seal with the litter box 1 through an annular sealing protrusion 6 and an annular sealing groove 5. The filter housing 3 has an internal airflow channel 9, the size and area of ​​which can be designed according to the litter box. A negative pressure fan 11 is installed at the bottom of the filter housing 3, and an activated carbon filter assembly 10 is installed inside the airflow channel 9. Through the action of the negative pressure fan 11, odorous air from the litter box is drawn into the airflow channel 9 through the negative pressure suction hole 7 and the air guide hole 8, and then discharged after being filtered by the activated carbon filter assembly 10, thus filtering the odors. Both the air guide hole 8 and the negative pressure suction hole 7 are equipped with fine mesh 14 to prevent debris from entering the airflow channel.

[0020] The filter housing 3 has a basin-shaped structure and is fitted onto the outside of the basin body 1. An annular positioning protrusion 12 is provided on the outer circumference of the filter housing 3. The bottom circumference of the protective cover 2 extends to the outside of the annular positioning protrusion 12. An annular sealing ring 13 is fixed on the annular positioning protrusion 12 and is positioned between the annular positioning protrusion 12 and the protective cover 2. This design of the filter housing 3 allows it to fit tightly into the litter box without adding extra space, ensuring a compact structure. The annular sealing ring 13 seals the filter housing 3 and the protective cover 2, preventing odor air from escaping from the protective cover and improving the collection efficiency.

[0021] The filter housing 3 has a sandwich structure, with the airflow channel 9 located within it. Filter assembly mounting holes 15 are provided on both sides of the filter housing 3. The activated carbon filter assembly 10 is installed within these mounting holes 15, and a sealing film 16 is provided between the back of the activated carbon filter assembly 10 and the sandwich structure of the filter housing 3. This structure reduces space requirements and allows for a more rational arrangement of the airflow channel 9, the activated carbon filter assembly 10, and the negative pressure fan 11. It enables odorous air to be filtered and discharged through the sandwich structure of the filter housing 3, ensuring a compact structure.

[0022] In addition, the activated carbon filter assembly 10 includes a filter box 17 and a fixing plate 18 installed on the filter box 17. The fixing plate 18 is fixed to the filter housing 3 by screws. Support meshes are provided at the bottom and top of the filter box 17. Between the support meshes, from top to bottom, are arranged a filter layer for removing large particulate pollutants, an adsorption layer for removing small particulate pollutants and toxic gases, and a sterilization layer for killing bacteria and viruses. The activated carbon filter assembly 10 has a detachable structure for easy replacement. The activated carbon filter assembly 10 has a five-layer structure internally. Support meshes are provided at the top and bottom for support, and a filter layer, an adsorption layer, and a sterilization layer are arranged between the support meshes. The filter layer uses a submicron-level multi-layer non-woven fabric with a conical honeycomb three-dimensional dust filtration structure, i.e., a 3D structure. The pore size of the filter layer gradually decreases from the first layer to the last layer. The adsorption layer uses activated carbon fiber. The sterilization layer uses a mesh woven from sterilization fiber or sterilization non-woven fabric. Through the multi-layer structure, odorous air is adsorbed and sterilized, ensuring the purification effect on odorous air.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall be included within the scope of the present utility model.

Claims

1. A cat litter box with a replaceable activated carbon layer, comprising a litter box body and a protective cover disposed on the litter box body, characterized in that: The bottom of the basin is provided with a filter shell, and the bottom of the filter shell is provided with an anti-slip support block. An annular sealing groove is provided on the circumference of the basin, and an annular sealing protrusion is provided on the top circumference of the filter shell. The annular sealing protrusion cooperates with the annular sealing groove and is used for insertion into the annular sealing groove. Multiple negative pressure air intake holes are provided on the top of the annular sealing groove. An airflow channel is built into the filter shell. Multiple air guide holes are provided on the annular sealing protrusion and are connected to the airflow channel. An activated carbon filter assembly is installed in the airflow channel. A negative pressure fan connected to the airflow channel is installed at the bottom of the filter shell.

2. A cat litter box with a replaceable activated carbon layer according to claim 1, characterized in that: The filter housing is generally basin-shaped and is fitted onto the outside of the basin. An annular positioning protrusion is provided on the outer circumference of the filter housing. The bottom circumference of the protective cover extends to the outside of the annular positioning protrusion. An annular sealing ring is fixed on the annular positioning protrusion and is disposed between the annular positioning protrusion and the protective cover.

3. The cat litter box with a replaceable activated carbon layer according to claim 1, characterized in that: Both the air guide hole and the negative pressure air intake hole are equipped with fine mesh.

4. The cat litter box with a replaceable activated carbon layer according to claim 1, characterized in that: The filter housing has a sandwich structure, the airflow channel is located within the sandwich structure, and filter assembly mounting holes are opened on both sides of the filter housing wall. The activated carbon filter assembly is installed in the filter assembly mounting holes, and a sealing film is provided between the back of the activated carbon filter assembly and the sandwich structure of the filter housing.

5. The cat litter box with a replaceable activated carbon layer according to claim 4, characterized in that: The activated carbon filter assembly includes a filter box and a fixing plate installed on the filter box. The fixing plate is fixed to the filter housing by screws. The bottom and top of the filter box are provided with support mesh. Between the support mesh, from top to bottom, there are a filter layer for removing large particulate pollutants, an adsorption layer for removing small particulate pollutants and toxic gases, and a bactericidal layer for killing bacteria and viruses.

6. The cat litter box with a replaceable activated carbon layer according to claim 5, characterized in that: The filter layer is made of submicron multilayer nonwoven fabric and has a cone-shaped honeycomb three-dimensional dust filtration structure, i.e., a 3D structure. The pore size of the filter layer gradually decreases from the first layer to the last layer. The adsorption layer is made of activated carbon fiber. The sterilization layer is made of a mesh woven from sterilization fiber or sterilization nonwoven fabric.

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