Cat toilet with deodorization device
By combining fan components and deodorizing components in cat toilets, using the separation design of the first air duct and the second air duct, combined with the filter and catalyst, the problem of poor deodorization effect of cat toilets is solved, and the further development is achieved Efficient odor purification and longer equipment life.
Patent Information
- Application Number
- CN202420965719.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The deodorization effect of existing cat toilets is poor, which makes it difficult to effectively eliminate the odor of cat urine and cat poop, affecting the user experience.
A cat toilet with deodorizing device is designed, using fan assembly and deodorizing components at the exhaust port, through the separation design of the first air duct and the second air duct, the fan assembly works to make the inlet and garbage bin odor. After passing through the deodorizing components, it is discharged from the exhaust port, combined with the filter net and catalysts of oxide, silica, alumina, and carbon to achieve more efficient odor purification.
It significantly reduces the odor leakage in cat toilets, improves the deodorization effect, extends the service life of the equipment, and does not require frequent catalyst replacement, making it more convenient to use.
Smart Images
Figure CN222263937U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pet supplies, in particular to a cat toilet with a deodorizing device. Background Art
[0002] As the pet market grows, the number of people who keep cats also increases dramatically. Cat toilets that can automatically scoop cat feces have appeared on the market, bringing convenience to pet owners. Specifically, it includes a drum and a screening component arranged inside the drum. The drum is provided with an entrance for cats to enter and exit and a discharge port for excrement to be discharged from the roller. When the drum rotates, under the action of gravity, the excrement is screened out by the screening component and guided to the discharge port to be discharged into the garbage bin. However, since cat toilets are semi-enclosed spaces, the smell of cat urine and cat feces is very smelly, and the problem of deodorizing cat toilets has become the most troubling problem for customers.
[0003] For this purpose, there are also utility model patents in the prior art such as CN211064559U that disclose a pet cat toilet, which includes a sand screening component, a base, and a deodorizing and sterilizing component. The sand screening component is configured to screen the excrement in the cat litter; the base is provided with a receiving slot, which is configured to receive the excrement; the deodorizing and sterilizing component is detachably provided on the base, and is configured to deodorize and sterilize the excrement in the receiving slot. However, the deodorizing and sterilizing component of the device cannot deodorize the sand screening component, and the odor in the sand screening component is easily discharged from the entrance of the cat toilet, affecting the user experience.
[0004] Also, utility model patent CN213784703U discloses an exhaust mechanism for a cat toilet, including a base, a discharge box for storing pet cat excrement, a fan installed on the inner wall of the base away from the cat toilet inlet, an exhaust duct on the base below the fan, one end of the exhaust duct connected to the fan outlet, the other end of the exhaust duct connected to the atmosphere, a plurality of first air inlets connected to the atmosphere are provided on the base near the cat toilet inlet, and the airflow generated by the fan is used to discharge the odor inside the cat toilet to the outside, thereby achieving a good deodorization effect of the cat toilet. However, the odor inside the cat toilet can still be discharged through the cat toilet inlet, affecting the user experience. Utility Model Content
[0005] The purpose to be achieved by the utility model is to provide a cat toilet with a deodorizing device, which solves the problem of poor deodorizing effect of the cat toilet and effectively improves the deodorizing effect.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cat toilet with a deodorizing device, comprising an outer shell, a garbage bin, and an inner cylinder rotatably arranged in the outer shell, the garbage bin is arranged at the lower part of the inner cylinder, the outer shell is provided with an exhaust port and an entrance for pets to enter and exit the inner space of the outer shell, the outer shell is also provided with a first air duct connecting the entrance and the exhaust port, and a second air duct connecting the garbage bin and the exhaust port, the first air duct and the second air duct are separated from each other, the exhaust port is provided with a fan assembly and a deodorizing component, the fan assembly works so that the airflows of the first air duct and the second air duct pass through the deodorizing component and are discharged from the exhaust port.
[0007] After adopting the above technical scheme, the utility model has the following advantages: by arranging a fan assembly and a deodorizing component at the exhaust port, a first air duct connecting the inlet and the exhaust port, and a second air duct connecting the garbage bin and the exhaust port on the outer shell, the fan assembly works so that the odor at the inlet is passed into the first air duct, and is discharged from the exhaust port after being deodorized by the deodorizing component, and the odor at the inlet is not directly leaked from the inlet, which is conducive to reducing the leakage of odor. At the same time, the fan assembly works so that the odor of the garbage bin is passed into the second air duct, and is discharged from the exhaust port after being deodorized by the deodorizing component, which can also reduce the leakage of odor from the garbage bin. In addition, the first air duct and the second air duct are separated from each other, so the odor at the inlet and the odor of the garbage bin will not affect each other, so that the fan assembly has a better effect of sucking the odor at the inlet and in the garbage bin, which is conducive to improving the deodorizing effect of the odor at the inlet and the odor in the garbage bin, and further reducing the leakage of odor. In addition, both the first air duct and the second air duct are connected to the exhaust port, and only a single fan assembly is required to complete the odor suction at the inlet and in the garbage bin, and the number of fan assemblies is smaller.
[0008] Furthermore, a partition is provided in the outer shell to divide the internal space of the outer shell into an upper space and a lower space, the inner cylinder and the inlet are located in the upper space, a first air duct is formed between the partition and the inner cylinder, and the garbage bin is located in the lower space, a second air duct is formed between the partition and the garbage bin.
[0009] By adopting the above-mentioned technical solution, the internal space of the shell is divided into an upper space and a lower space by setting a partition, the inner cylinder and the entrance are set in the upper space, and the garbage bin is located in the lower space. The partition can effectively intercept the odor in the garbage bin and reduce the odor in the garbage bin from directly leaking out from the entrance.
[0010] Furthermore, the exhaust port is located between the upper space and the lower space and is arranged on a different side from the inlet.
[0011] By adopting the above-mentioned technical solution, firstly, the exhaust port is located between the upper space and the lower space, which can realize the circulation and ventilation of odor in the upper space and the lower space at the same time, and there is no need to set up multiple exhaust ports, so that the appearance of the cat toilet is more beautiful, and the exhaust port and the inlet are set on different sides. The exhaust port and the inlet are set on different sides to make the air flow more smoothly, avoiding cross interference of airflow, improving the deodorization effect of the cat toilet, reducing the airflow discharged from the exhaust port from the inlet to enter the first air duct, and increasing the resistance of the odor at the inlet to enter the first air duct.
[0012] Furthermore, the exhaust port is arranged close to the inlet.
[0013] By adopting the above technical solution, the exhaust port is arranged close to the inlet, which is beneficial to shortening the distance between the fan assembly and the inlet, and is beneficial to improving the suction effect of the fan assembly on odor at the inlet.
[0014] Furthermore, the fan assembly includes a turbofan, and the upper and lower parts of the turbofan are symmetrically arranged about the partition.
[0015] By adopting the above technical solution, the upper and lower parts of the turbofan are symmetrically arranged about the partition, so that the turbofan can more evenly suck the air in the upper space and the odor in the lower space, thereby effectively purifying the odor inside the entire cat toilet.
[0016] Furthermore, the exhaust port is provided with a filter, and the filter is located upstream of the fan assembly and the deodorizing component.
[0017] By adopting the above technical solution, the filter can effectively filter larger impurities, improve the air quality discharged from the exhaust port, and prevent larger magazines from directly entering the fan assembly and deodorization components, thereby reducing dust accumulation and pollution inside the equipment and extending the service life of the equipment.
[0018] Furthermore, the deodorizing component includes a catalyst composed of one or more of oxides, silicon dioxide, aluminum oxide, and carbon.
[0019] By adopting the above technical solution, the catalyst mainly plays the role of a catalyst, so that the odor can be decomposed into odorless gases such as water and carbon dioxide when passing through the catalyst. The catalyst itself will not be consumed. During long-term use, the user does not need to replace the catalyst, which is more convenient to use.
[0020] Furthermore, the inner diameter of the first air duct decreases from the inlet to the exhaust port, and the inner diameter of the second air duct decreases from the garbage bin to the exhaust port.
[0021] By adopting the above technical solution, the design of the inner diameter of the first air duct and the inner diameter of the second air duct from large to small can increase the air flow speed and air flow pressure, so that the odor in the cat toilet can be sucked through the deodorization component for purification more quickly, further improving the deodorization efficiency.
[0022] Furthermore, the entrance is provided with a step surface which is convenient for pets to enter and exit, and the step surface is provided with an air inlet hole which is connected with the first air duct.
[0023] By adopting the above technical solution, the step surface design can facilitate the pet to enter and exit conveniently. At the same time, an air inlet hole connected to the first air duct is provided on the step surface. The odor remaining on the step surface when the pet enters and exits can be input into the first air duct through the air inlet hole, further reducing the leakage of odor and increasing the air intake of the first air duct.
[0024] Furthermore, two exhaust ports are provided, and the two exhaust ports are symmetrically arranged on both sides of the shell with the inlet as the center, and the first air duct and the second air duct are connected to the two exhaust ports.
[0025] By adopting the above technical solution, the provision of two exhaust ports can increase the ventilation area of the exhaust ports, enlarge the exhaust passage, and improve the air circulation, which is conducive to rapid deodorization. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The utility model is further described below in conjunction with the accompanying drawings:
[0027] Figure 1 This is a schematic structural diagram of a cat toilet with a deodorizing device according to the utility model;
[0028] Figure 2 An exploded view of a cat toilet with a deodorizing device according to the utility model;
[0029] Figure 3 It is a cross-sectional view of a cat toilet with a deodorizing device according to the utility model;
[0030] Figure 4 For the utility model Figure 3 A magnified view of the structure at center;
[0031] Figure 5 It is a cross-sectional view from another perspective of the cat toilet with a deodorizing device of the utility model;
[0032] Figure 6 For the utility model Figure 5 A magnified view of the structure at B in the middle;
[0033] In the figure, 10, outer shell; 11, entrance; 12, door body; 13, step; 14, first air duct; 15, exhaust port; 16, second air duct; 17, air inlet; 18, upper space; 19, lower space; 20, inner tube; 21, sand leakage port; 22, baffle; 23, screen; 24, cat litter bin; 30, bracket; 31, through hole; 40, garbage bin; 50, drive motor; 60, catalyst; 70, turbo fan; 80, filter; 90, partition. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0035] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.
[0036] It should be understood that in various embodiments of the present invention, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
[0037] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.
[0038] It should be understood that in the present utility model, "plurality" refers to two or more than two. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or any three of X, Y, and Z are included.
[0039] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.
[0040] like Figures 1 to 6As shown, the utility model provides a cat toilet with a deodorizing device, comprising an outer shell 10, and an inner cylinder 20, a bracket 30, a partition 90, a garbage bin 40 and a fan assembly arranged in the outer shell 10, the partition 90 divides the internal space of the outer shell 10 into an upper space 18 and a lower space 19, the inner cylinder 20 is rotatably arranged in the upper space 18 through the bracket 30, the garbage bin 40 is arranged in the lower space 19 and is located below the inner cylinder 20, the partition 90 can effectively intercept the odor in the garbage bin 40, and reduce the odor in the garbage bin 40 directly leaking out from the entrance 11, the outer shell 10 is provided with an exhaust port 15 and an entrance 11 for pets to enter and exit, the entrance 11 is located in the upper space 18, and the entrance 11 is provided with a door body 12 that can be closed and opened. By closing the door body 12, the odor leakage from the entrance 11 can be reduced. The bracket 30 and the partition 90 are both provided with a through hole 31 connected to the garbage bin 40. The inner cylinder 20 is provided with a screening component for screening cat litter and a sand leakage port 21 for allowing agglomerates to escape from the inner cylinder 20. The screening component includes a baffle 22 and a screen 23. One end of the baffle 22 is close to the sand leakage port 21, and the other end of the baffle 22 is connected to the screen 23. The screen 23 is provided with a plurality of sieve holes. The width of the sieve holes is greater than the diameter of the cat litter and smaller than the diameter of the agglomerates. A cat litter bin 24 for placing cat litter is formed between the baffle 22 and the inner wall of the inner cylinder 20.
[0041] In order to realize automatic poop shoveling, a driving mechanism is provided on the bracket 30, and the output end of the driving mechanism is transmission-connected with the inner cylinder 20, thereby driving the inner cylinder 20 to rotate. When the inner cylinder 20 rotates until the sand leakage port 21 is connected with the inlet 11, the cat and cat litter can enter the inner cylinder 20 through the inlet 11 and the sand leakage port 21 in sequence. When the cat leaves, the inner cylinder 20 continues to rotate, and the cat litter enters the cat litter bin 24 through the sieve holes, while the agglomerates cannot pass through the sieve holes. The agglomerates stay on the baffle 22 and the inner wall of the inner cylinder 20 until the sand leakage port 21 is at the lowest position, and the agglomerates fall from the sand leakage port 21 into the garbage bin 40, thereby realizing the collection of agglomerates.
[0042] It should be noted that the driving mechanism includes a driving motor 50 , and the driving motor 50 can directly drive the inner cylinder 20 to rotate.
[0043] In order to prevent the odor generated by cat feces and urine from emitting outward from the inlet 11 and affecting the user experience, the housing 10 in this embodiment is further provided with a first air duct 14 connecting the inlet 11 and the exhaust port 15, and a second air duct 16 connecting the garbage bin 40 and the exhaust port 15. The exhaust port 15 is provided with a fan assembly and a deodorizing component. The fan assembly works so that the odor at the inlet 11 is passed into the first air duct 14 and is discharged from the exhaust port 15 after being deodorized by the deodorizing component. The odor at the inlet 11 does not leak out directly from the inlet 11, which is conducive to reducing the leakage of odor. At the same time, the fan assembly works so that the odor of the garbage bin 40 is passed into the second air duct 16, and After being deodorized by the deodorizing component, the odor is discharged from the exhaust port 15, which can also reduce the leakage of odor from the garbage bin 40. In addition, the first air duct 14 and the second air duct 16 are separated from each other, so the odor at the entrance 11 and the odor in the garbage bin 40 will not affect each other, so that the fan component can better absorb the odor at the entrance 11 and the garbage bin 40, which is beneficial to improve the deodorizing effect of the odor at the entrance 11 and the odor in the garbage bin 40, and further reduce the leakage of odor. Moreover, the first air duct 14 and the second air duct 16 are both connected to the exhaust port 15, and only a single fan component is required to complete the odor extraction at the entrance 11 and the garbage bin 40, and the number of fan components is less.
[0044] Specifically, a first air duct 14 is formed between the partition 90 and the inner tube 20, a second air duct 16 is formed between the partition 90 and the garbage bin 40, an exhaust port 15 is located between the upper space 18 and the lower space 19, and a fan assembly includes a turbofan 70. The turbofan 70 has the advantages of a small size and a large air volume, which is conducive to reducing the occupation of the internal space of the cat toilet with a deodorizing device. The upper and lower parts of the turbofan 70 are symmetrically arranged about the partition 90, and can more evenly suck the odor in the upper space 18 and the lower space 19 at the same time, without the need to set multiple exhaust ports 15, so that the appearance of the cat toilet is more beautiful.
[0045] In order to improve the deodorizing effect of the cat toilet, in this embodiment, the exhaust port 15 is arranged on different sides of the inlet 11, which can make the air flow more smoothly, avoid cross interference of the air flow, improve the deodorizing effect of the cat toilet, reduce the air flow discharged from the exhaust port 15 entering the first air duct 14 from the inlet 11, and increase the resistance of the odor at the inlet 11 to enter the first air duct 14.
[0046] Furthermore, the suction effect of the fan assembly is related to the distance. If the inlet 11 is far from the fan assembly, the fan assembly has a poor suction effect on the airflow at the inlet 11. For this reason, in this embodiment, the exhaust port 15 is arranged close to the inlet 11. Preferably, the exhaust port 15 is located on the right side of the housing 10, which is conducive to shortening the distance between the fan assembly and the inlet 11, and is conducive to improving the suction effect of the fan assembly on the odor at the inlet 11. It should be noted that the position of the exhaust port 15 is not limited to the above content description and the drawings, and the exhaust port 15 can also be arranged at the left side, rear side and other suitable positions of the housing 10.
[0047] Furthermore, the inner diameter of the first air duct 14 decreases from large to small from the inlet 11 to the exhaust port 15, and the inner diameter of the second air duct 16 decreases from large to small from the garbage bin 40 to the exhaust port 15, so as to increase the air flow speed and air flow pressure, so that the odor in the cat toilet can be sucked through the deodorization component for purification more quickly, thereby further improving the deodorization efficiency.
[0048] Since the height of the entrance 11 of the same cat toilet is fixed, but cats of different sizes are available, in order to facilitate smaller cats to pass through the entrance 11, in this embodiment, the entrance 11 is provided with a step 13 that is convenient for the cat to enter and exit. The cat can enter the inner cylinder 20 through the step 13, avoiding the problem that the entrance 11 is too high and makes it difficult for the cat to enter.
[0049] Since cats have the habit of burying their excrement after defecating, and the excrement may stick to the cat in the process of burying it, the odor of the excrement is likely to remain on the step surface of the step 13 when the cat enters and exits the cat toilet. For this reason, an air inlet 17 connected to the first air duct 14 is provided on the step surface. When the pet enters and exits the entrance 11, the odor remaining on the step surface can be input into the first air duct 14 through the air inlet 17, further reducing the leakage of the odor and increasing the air intake of the first air duct 14.
[0050] In the prior art, photocatalyst 60 spray, deodorant (sugar cane polyphenol, persimmon tannin), and purification liquid (plant extract) are usually used for deodorization, and photocatalyst 60 spray, deodorant (sugar cane polyphenol, persimmon tannin), and purification liquid (plant extract) are consumables, which require users to frequently add them later, which is inconvenient to use. Therefore, the deodorization component in this embodiment includes a catalyst 60 composed of oxides, silicon dioxide, aluminum oxide, and carbon. The catalyst 60 mainly plays the role of a catalyst. When the odor passes through the catalyst 60, it can be decomposed into odorless gases such as water and carbon dioxide. The catalyst 60 itself will not be consumed. During long-term use, the user does not need to replace the catalyst 60, which is more convenient to use.
[0051] During the suction process of the fan assembly, larger volumes of impurities will be sucked in along with the odor, and the deodorization efficiency of the catalyst 60 is related to the contact area with the odor. For this reason, in this embodiment, the exhaust port 15 is also provided with a filter 80, and the filter 80 is arranged upstream of the turbofan 70 and the catalyst 60. The filter 80 can effectively intercept larger volumes of impurities, which not only prevents larger volumes of impurities from being adsorbed on the catalyst 60, thereby ensuring the contact area between the catalyst 60 and the odor, and further ensuring the deodorization efficiency, but also prevents larger volumes of impurities from contacting the high-speed turbofan 70, thereby ensuring the service life of the turbofan 70, and also prevents larger volumes of impurities from being directly discharged from the exhaust port 15, thereby improving the quality of air discharged from the exhaust port 15.
[0052] Since cat feces and urine are easily adsorbed on the inner cylinder 20 and continue to emit odor, for this reason, in this embodiment, an antifouling coating can also be provided on the surface of the inner cylinder 20 to increase the difficulty of cat feces and urine adsorbing on the inner cylinder 20, reduce the adsorption of cat feces and urine on the inner cylinder 20, and thus reduce the generation of odor. It can be understood that in other embodiments, the first air duct and the second air duct can also be venturi tubes, with faster gas flow rate and higher deodorization efficiency.
[0053] It is understandable that in other embodiments, two exhaust ports are provided, and the two exhaust ports are symmetrically arranged on both sides of the housing with the inlet as the center, and the first air duct and the second air duct are connected to the two exhaust ports. Accordingly, two fan assemblies and two deodorizing components are provided. The provision of two exhaust ports can increase the ventilation area of the exhaust ports, enlarge the exhaust channel, and increase the air flow, which is conducive to rapid deodorization. It should be noted that the number of exhaust ports, deodorizing components, and fan assemblies is not limited to the above-mentioned records, and there can also be three, four, five, and other reasonable numbers.
[0054] It is understandable that in other embodiments of the present invention, the catalyst may also include only one of oxide, silicon dioxide, aluminum oxide, and carbon, or a mixture of two or three thereof.
[0055] It should be noted that the lumps mainly include lumps of matter formed by the mixture of feces, urine and cat litter.
[0056] It should be noted that the cat toilet with a deodorizing device can also be used by pets such as hamsters and dogs.
[0057] It should be noted that the fan assembly can be turned on manually by the user or remotely via a wireless switch, which is more convenient to use.
[0058] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.
Claims
1. A cat toilet with a deodorizing device, comprising an outer shell, a garbage bin, and an inner cylinder rotatably arranged in the outer shell, wherein the garbage bin is arranged at the lower part of the inner cylinder, and the outer shell is provided with an exhaust port and an entrance for pets to enter and exit the inner space of the outer shell, characterized in that: The shell is also provided with a first air duct connecting the inlet and the exhaust port, and a second air duct connecting the garbage bin and the exhaust port, the first air duct and the second air duct are separated from each other, and the exhaust port is provided with a fan assembly and a deodorizing component, and the fan assembly works so that the airflows of the first air duct and the second air duct pass through the deodorizing component and are discharged from the exhaust port.
2. The cat toilet with a deodorizing device according to claim 1, characterized in that: A partition is provided in the shell to divide the internal space of the shell into an upper space and a lower space. The inner cylinder and the inlet are located in the upper space. A first air duct is formed between the partition and the inner cylinder. The garbage bin is located in the lower space. A second air duct is formed between the partition and the garbage bin.
3. The cat toilet with a deodorizing device according to claim 2, characterized in that: The exhaust port is located between the upper space and the lower space and is arranged on a different side from the inlet.
4. The cat toilet with a deodorizing device according to claim 3, characterized in that: The exhaust port is arranged close to the inlet.
5. The cat toilet with a deodorizing device according to claim 2, characterized in that: The fan assembly includes a turbofan, and the upper and lower parts of the turbofan are symmetrically arranged about the partition.
6. The cat toilet with a deodorizing device according to claim 1, characterized in that: The air outlet is provided with a filter screen, and the filter screen is located upstream of the fan assembly and the deodorizing component.
7. The cat toilet with a deodorizing device according to claim 1, characterized in that: The deodorizing component includes a catalyst composed of one or more of oxides, silicon dioxide, aluminum oxide, and carbon.
8. The cat toilet with a deodorizing device according to claim 1, characterized in that: The inner diameter of the first air duct decreases from the inlet to the exhaust port, and the inner diameter of the second air duct decreases from the garbage bin to the exhaust port.
9. The cat toilet with a deodorizing device according to claim 1, characterized in that: The entrance is provided with a step surface which is convenient for pets to enter and exit, and the step surface is provided with an air inlet hole which is connected with the first air duct.
10. The cat toilet with a deodorizing device according to claim 1, characterized in that: There are two exhaust ports, which are symmetrically arranged on both sides of the shell with the inlet as the center, and the first air duct and the second air duct are connected to the two exhaust ports.