Pet toilet

Abstract

The utility model discloses a pet toilet which comprises a roller provided with a first opening and a first containing space. The roller is rotatably mounted on the base; the circular fluted disc is arranged on the roller, the circular fluted disc comprises a tooth section and a smooth section, and the two ends of the tooth section are connected with the two ends of the smooth section respectively; the gear is arranged on the base, and the tooth section is meshed with the gear, so that when the gear rotates, the circular fluted disc drives the roller to rotate; the bedpan is arranged on the base, the roller is provided with an initial position and a defecation position, when the roller is located at the defecation position, the first opening is opposite to the first opening of the bedpan, the gear is meshed with the tooth section and is close to the smooth section, and the roller and the base form a second opening for a pet to go in and out; the control device is used for controlling the rotation of the gear; the Hall sensing device is electrically connected with the control device, and the Hall sensing device is used for detecting whether the roller is located at the initial position or the defecation position.

Description

Technical Field

[0001] The utility model relates to a pet toilet, which is applied to the technical field of pet accessories. Background Art

[0002] A pet litter box is a convenient way to clean up a pet's urine and feces. Therefore, it is essential for pet owners. Traditional litter boxes are simple in structure, and are basically filled with a layer of pet litter. After each use, the pet has to dig up the litter to cover it up, requiring regular manual cleaning to keep the litter clean. Therefore, various smart pet litters have emerged on the market. When users don't have time to clean up the urine and feces in ordinary pet litters, smart pet litters can process urine and feces regularly to keep the litter clean.

[0003] Most smart pet toilets on the market consist of a base and a drum. The drum rotates, separating pet feces from litter through a screen inside the drum. The feces are then discharged into the collection basin, and the drum returns to its original position, with the litter also falling back into the drum. This drum rotation process is typically executed by a control device and a detection device. The detection device detects when the drum has reached the defecation position, then pauses for a few minutes before returning to its original position. This type of pet toilet presents two safety hazards. First, when the drum reaches the defecation position, the drum and the base are sealed. As the drum rotates toward the defecation position, the opening between the two becomes smaller and smaller. If a pet panics and tries to escape, the drum continues to rotate, easily trapping the pet, or even killing it. Second, the drum rotation is typically driven by a gear in a drive device. The detection device detects the drum's position, such as the defecation position. If the detection device detects the drum's arrival, a signal signals the control device to stop the drum. However, if the detection signal fails and the drum continues to rotate, it can damage the pet toilet itself and injure the pet if it is still inside. Summary of the Invention

[0004] In view of the low safety of the smart pet toilets on the market in the existing technology mentioned above, the drum is continuously rotating, and the pet wants to go out of the drum, which can easily pinch the pet. In addition, if the detection device fails, the drum continues to rotate, which will not only damage the pet toilet body, but also hurt the pet if the pet is still in the drum. The utility model provides a pet toilet, which when the drum rotates to the defecation position, has a second opening reserved between the drum and the base for the pet to go out of the drum, and the spherical toothed disk includes a tooth section and a smooth section. Even if the Hall sensing device fails, the gear can only rotate into the smooth section along the tooth section, and the gear cannot rotate in the smooth section. Therefore, the gear will not drive the drum to rotate continuously, so the pet toilet body will not be damaged, and the pet still in the drum will not be harmed.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a pet toilet, which includes a drum, the drum having a first opening and a first accommodating space, the first opening being connected to the first accommodating space, and the first accommodating space being used to accommodate pet excrement and pet litter; a base, the drum being rotatably mounted on the base; a spherical toothed disk, the spherical toothed disk being arranged on the drum, the spherical toothed disk comprising a toothed section and a smooth section, the two ends of the toothed section being respectively connected to the two ends of the smooth section; a gear, the gear being arranged on the base, the toothed section being meshed with the gear so that when the gear rotates, the spherical toothed disk drives the drum to rotate; a feces collecting bowl, the feces collecting bowl being arranged on the base, the drum having an initial position and a defecation position, when the drum is in the defecation position, the first opening is opposite to the first opening of the feces collecting bowl, the gear being meshed on the toothed section and close to the smooth section, and the drum and the base forming a movable A second opening for pets to enter and exit; a control device, the control device is used to control the rotation of the gear; a Hall sensing device, the Hall sensing device is electrically connected to the control device, the Hall sensing device is used to detect that the drum is in an initial position or a defecation position, and when the Hall sensing device detects that the drum is in the initial position or the defecation position, the sensing signal of the Hall sensing device is transmitted to the control device; when the Hall sensing device fails when the drum is in the defecation position, the gear rotates along the tooth segment toward the end of the tooth segment until it rotates into the smooth segment, the drum stops rotating, and the opening of the second opening becomes smaller to form a third opening for pets to enter and exit the drum; when the Hall sensing device fails when the drum is in the initial position, the gear rotates along the tooth segment toward the starting end of the tooth segment until it rotates into the smooth segment, the drum stops rotating, and the drum and the base form a fourth opening for pets to enter and exit the drum.

[0006] Furthermore, the roller has a center of a circle, and the first opening has a transverse center line and a longitudinal center line. The transverse center line intersects the longitudinal center line perpendicularly to form the center point of the first opening, and the roller rotates along the transverse center line. The two ends of the longitudinal center line are extended to intersect with the side edges of the first opening to form a first intersection point and a second intersection point. The first intersection point is connected to the center of the circle to form a first straight line, and the second intersection point is connected to the center of the circle to form a second straight line. A first angle is formed between the first straight line and the second straight line. The first angle is toward the first opening, and the first angle is 110-150 degrees.

[0007] Furthermore, when the roller is in the initial position, the base has a transverse plane, the roller and the base are arranged in sequence from top to bottom, and the transverse center line is parallel to the transverse plane of the base, and the transverse plane of the base can be located on the center of the circle. When the transverse plane of the base is located on the center of the circle, a second angle is formed between the second straight line and the transverse plane of the base, and the second angle is 15-30 degrees.

[0008] Furthermore, the Hall sensing device includes a first sensor chip, a second sensor chip, a first magnet and a second magnet. The first sensor chip and the second sensor chip are both electrically connected to the control device. The first sensor chip is used to sense the first magnet, and the first sensor chip and the first magnet are respectively arranged on the base and the roller. When the roller is in the initial position, the first sensor chip senses the first magnet. The second sensor chip and the second magnet are respectively arranged on the base and the roller, and when the roller rotates to the defecation position, the second sensor chip senses the second magnet.

[0009] Furthermore, the control device includes a driving device and a control circuit board. The driving device is electrically connected to the control circuit board. The driving device is used to drive the gear. The first sensor chip and the second sensor chip are both arranged on the control circuit board.

[0010] Furthermore, the base has a mounting groove, the stool collecting bowl is arranged at the bottom of the mounting groove, the roller is arranged at the opening of the mounting groove, the driving device, the control circuit board and the gear are installed in the mounting groove, the spherical tooth plate is arranged on the roller corresponding to the gear setting, the first magnet and the second magnet are arranged on the roller, and the first magnet corresponds to the end of the tooth segment, so that the first sensor chip senses the first magnet and transmits the signal that the roller is in the defecation position to the control circuit board, and the second magnet corresponds to the starting end of the tooth segment, so that the second sensor chip senses the second magnet and transmits the signal that the roller is in the initial position to the control circuit board.

[0011] Furthermore, the spherical tooth plate is arranged on the outer side surface of the side wall of the drum, the gear is arranged on the side wall of the installation groove corresponding to the spherical tooth plate, the first magnet and the second magnet are arranged on the outer side surface of the other side wall of the drum and are opposite to the spherical tooth plate, the control circuit board is arranged on the other side wall of the installation groove and is opposite to the gear, and the driving device is arranged close to the gear.

[0012] Furthermore, the pet toilet also includes a control key for controlling the rotation of the drum, and the control key is arranged on the outer side of the base and electrically connected to the control circuit board.

[0013] Furthermore, the pet toilet also includes a screen assembly, which is connected to the drum. The screen assembly and the inner wall of the drum form a second storage space, and the second storage space is adjacent to the first storage space. The screen assembly is used to screen the pet litter and pet excrement. When the first opening rotates with the drum from the initial position to the defecation position, the pet litter can enter the second storage space through the screen assembly, and the excrement is restricted outside the second storage space so that the excrement can be discharged into the collection bowl through the first opening by its own gravity. When the first opening rotates with the drum from the defecation position to the initial position, the pet litter in the second storage space can pass through the screen assembly and fall back into the first storage space by its own gravity.

[0014] Furthermore, the pet toilet also includes supporting legs, which are used to support the base so that there is a gap between the base and the supporting platform, and the litter box is arranged in the gap.

[0015] The beneficial effects of the present utility model are as follows: the present utility model provides a pet toilet, which, when the drum is rotated to the defecation position, is provided with a second opening between the drum and the base, for the pet to go out of the drum, and the provided spherical tooth plate includes a tooth section and a smooth section. Even if the Hall sensor fails, the gear can only rotate into the smooth section when the tooth section is extended, and the gear cannot rotate in the smooth section. Therefore, the gear will not drive the drum to rotate continuously, so that the pet toilet body will not be damaged, and the pet still in the drum will not be harmed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the pet toilet provided by the present utility model;

[0017] Figure 2 This is a cross-sectional view of the drum provided by the utility model;

[0018] Figure 3 This is an exploded view of the pet toilet provided by the present invention;

[0019] Figure 4 The utility model provides Figure 3 Exploded image from another perspective;

[0020] Figure 5 This is a three-dimensional diagram of the control circuit board provided by the utility model;

[0021] Figure 6 It is a three-dimensional diagram of the base provided by the utility model;

[0022] Figure 7 The roller provided by the utility model is in the defecation position;

[0023] Figure 8 This is a state diagram provided by the utility model when the drum is in the defecation position and the Hall sensor device fails;

[0024] Figure 9 This is a state diagram provided by the utility model when the drum is in the initial position and the Hall sensor device fails. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and effect of the present invention more clear and explicit, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] See also Figure 1-7 The utility model provides a pet toilet, which includes

[0027] The drum 1 has a first opening 11 and a first receiving space 12. The first opening 11 is connected to the first receiving space 12. The first opening is used for pets to enter the first receiving space 12. The first receiving space 12 is used to receive pet excrement and pet litter.

[0028] The drum 1 is rotatably mounted on the base 2;

[0029] The scalloped disc 3 is provided on the drum 1 and includes a toothed section 31 and a smooth section 32. The two ends of the toothed section 31 are respectively connected to the two ends of the smooth section 32.

[0030] Gear 4 is provided on the base 2, and the tooth segment 31 is engaged with the gear 4, so that when the gear 4 rotates, the scalloped disc 3 drives the drum 1 to rotate;

[0031] The collecting bowl 5 is provided on the base 2. The drum 1 has an initial position and a defecation position. When the drum 1 is in the defecation position, the first opening 11 is opposite to the first opening 11 of the collecting bowl 5. The gear 4 is engaged with the tooth segment 31 and is close to the smooth segment 32. The drum 1 and the base 2 form a second opening 201 for pets to enter and exit. Figure 7 As shown;

[0032] A control device 6, which is used to control the rotation of the gear 4;

[0033] A Hall sensor device is electrically connected to the control device 6 and is used to detect whether the drum 1 is in the initial position or the defecation position. When the Hall sensor device detects that the drum 1 is in the initial position or the defecation position, the sensing signal of the Hall sensor device is transmitted to the control device 6.

[0034] The gear 4 rotates along the tooth segment 31 into the smooth segment 32;

[0035] When the Hall sensor fails when the drum 1 is in the defecation position, the gear 4 rotates along the tooth segment 31 toward the end 301 of the tooth segment 31 until it rotates into the smooth segment 32, the drum 1 stops rotating, and the opening of the second opening 201 becomes smaller to form a third opening 202 for pets to enter and exit the drum 1. The third opening is the state of the second opening becoming smaller, such as Figure 8 As shown; when the Hall sensor device fails when the drum 1 is in the initial position, the gear 4 rotates along the tooth segment 31 toward the starting end 302 of the tooth segment 31 until it rotates into the smooth section 32, the drum 1 stops rotating, and the drum 1 and the base 2 form a fourth opening 203 for pets to enter and exit the drum 1, as shown Figure 9 As shown, the above definition of the starting end 302 and the ending end 301 is that when the drum is in the initial position, the gear is close to the starting end 302, and when the drum is in the defecation position, the gear is close to the ending end 301.

[0036] That is to say, the Hall sensing device is used to detect the position of the drum and transmit the detected signal to the control device, and the control device controls the rotation and stop of the drum. When the Hall sensing device fails, that is, the Hall sensing device cannot detect, the position signal of the drum cannot be transmitted to the control device, and the control device can only continue to drive the gear, then the gear falls into the smooth section, and the gear can only idle in the smooth section, and cannot drive the roller to continue rotating, so as to ensure the safety of the pet toilet for the pet still in the drum. In addition, when the drum is in the defecation position, a second opening is reserved between the drum and the base for the pet to exit the drum from the inside to the outside of the drum to prevent the drum from pinching the pet when rotating. When the drum is in the defecation position and the Hall sensing device fails, the gear falls into the smooth section, and a third opening is reserved between the drum and the base for the pet to enter and exit the drum. When the drum is in the initial position and the Hall sensing device fails, the gear falls into the smooth section, and a fourth opening is reserved between the drum and the base for the pet to enter and exit the drum. The settings of the second, third and fourth openings and the smooth section greatly improve the safety of the smart pet toilet, prevent pets from being pinched, and enhance the user experience. The setting of the smooth section is simple. If more detection devices are set, accidents will occur when the control circuit board is broken. Therefore, the setting of the smooth section not only solves the problem of accidental drum rotation, but also facilitates mold production and reduces the overall cost of the pet toilet.

[0037] In this embodiment, the drum 1 has a center 101, and the first opening 11 has a transverse center line 102 and a longitudinal center line 103. The transverse center line 102 and the longitudinal center line 103 intersect perpendicularly to form the center point of the first opening 11, and the drum 1 rotates along the transverse center line 102. The two ends of the longitudinal center line 103 extend and intersect with the side edges of the first opening 11 to form a first intersection point 1031 and a second intersection point 1032. When the drum 1 is in the initial position, the first intersection point 1031 is away from the base 2, and the second intersection point 1032 is close to the base 2. The first intersection point 1031 is connected to the center 101 to form a first straight line 1031. 11, the second intersection 1032 is connected to the center of the circle 101 to form a second straight line 1012. A first angle α is formed between the first straight line 1011 and the second straight line 1012. The first angle α is oriented toward the first opening 11 and is in the range of 110-150 degrees. If the angle α is less than 115 degrees, the opening angle of the first opening 11 is small, and larger pets cannot enter, which limits the size of the pets. If the angle α is greater than 155 degrees, the angle of the first opening 11 is large, which will reduce the capacity of the pet litter in the first storage space 12. The first storage space 12 can store less cat litter, which is not conducive to the collection of excrement. Specifically, the angle α can be 111 degrees, 115 degrees, 120 degrees, 125 degrees, 130 degrees, 135 degrees, 140 degrees, 145 degrees, 150 degrees, etc., and is not specifically limited here.

[0038] In this embodiment, when the drum 1 is in the initial position, the second intersection 1032 is close to the base 2, and the base 2 has a transverse plane 204, which is equivalent to the plane upward along the X-axis of the base, and is a virtual plane. The drum 1 and the base 2 are arranged in sequence from top to bottom, and the transverse center line 102 is parallel to the transverse plane 204 of the base 2. The transverse plane 204 of the base 2 can be located on the center of the circle 101. When the transverse plane 204 of the base 2 is located on the center of the circle 101, a second angle β is formed between the second straight line 1012 and the transverse plane 204 of the base 2. The second angle β is 15-30 degrees. If the angle β is less than 15 degrees, the height difference between the bottom of the first accommodating space 12 and the second intersection 1032 is large, and the first accommodating space 12 is deeper, which increases the difficulty for kittens or pregnant cats to enter and exit the litter bin 10; if the angle β is greater than 30 degrees, the bottom of the first accommodating space 12 is shallow, which reduces the capacity of the first accommodating space 12 and is not conducive to the collection of excrement. Specifically, the angle β may be 15 degrees, 20 degrees, 25 degrees or 30 degrees.

[0039] In this embodiment, the Hall sensing device includes a first sensor chip 71, a second sensor chip 72, a first magnet 73 and a second magnet 74. The first sensor chip 71 and the second sensor chip 72 are both electrically connected to the control device 6. The first sensor chip 71 is used to sense the first magnet 73, and the first sensor chip 71 and the first magnet 73 are respectively arranged on the base 2 and the drum 1. When the drum 1 is in the initial position, the first sensor chip 71 can sense the first magnet 73. The second sensor chip 72 and the second magnet 74 are respectively arranged on the base 2 and the drum 1, and when the drum 1 rotates to the defecation position, the second sensor chip 72 senses the second magnet 74.

[0040] In this embodiment, the control device 6 includes a driving device 61 and a control circuit board 62. The driving device 61 is electrically connected to the control circuit board 62. The driving device 61 is used to drive the gear 4. The first sensor chip 71 and the second sensor chip 72 are both arranged on the control circuit board 62, which makes assembly more convenient and quick, saving the installation process of the first sensor chip 71 and the second sensor chip 72.

[0041] In this embodiment, the base 2 has a mounting groove 21, the toilet bowl 5 is arranged at the bottom of the mounting groove 21, the drum 1 is arranged at the opening of the mounting groove 21, the driving device 61, the control circuit board 62 and the gear 4 are installed in the mounting groove 21, the spherical tooth plate 3 is arranged on the drum 1 corresponding to the gear 4, the first magnet 73 and the second magnet 74 are arranged on the drum 1, and the first magnet 73 corresponds to the end 301 of the tooth segment 31, so that the first sensor chip 71 senses the first magnet 73 and transmits the signal that the drum 1 is in the defecation position to the control circuit board 62, and the second magnet 74 corresponds to the starting end 302 of the tooth segment 31, so that the second sensor chip 72 senses the second magnet 74 and transmits the signal that the drum 1 is in the initial position to the control circuit board 62. The above definition of the starting end 302 and the end 301 is that when the drum is in the initial position, the gear is close to the starting end 302, and when the drum is in the defecation position, the gear is close to the end 301, and the S pole or N pole of the first magnet 73 is facing outward. The magnetic fields of the second magnet 74 and the first magnet 73 facing outward can be opposite or the same, that is, if the S pole of the first magnet 73 faces outward, the N pole of the second magnet 74 can be set to face outward; if the N pole of the first magnet 73 faces outward, the S pole of the second magnet 74 can be set to face outward; or both the S poles of the first magnet 73 and the S poles of the second magnet 74 can face outward; or both the N poles of the first magnet 73 and the N poles of the second magnet 74 can face outward. Here, facing outward means that the N pole surface or the S pole surface is the surface away from the inner side surface of the base 2, which can be sensed by the chip, and the first chip and the second sensor chip 72 find the corresponding first magnet 73 and the second magnet 74. The first chip and the second sensor chip 72 can find the corresponding first magnet 73 and the second magnet 74 through program settings. How the first chip and the second sensor chip 72 find the corresponding first magnet 73 and the second magnet 74 through program settings is existing technology and will not be repeated here. Here, it is preferred that the magnetic field of the second magnet 74 is opposite to that of the first magnet 73 facing outward. If the magnetic fields of the first magnet 73 and the second magnet 74 are the same and both are set facing outward, the program setting for the first chip and the second sensor chip 72 to find the corresponding first magnet 73 and the second magnet 74 will be more complicated, and it will be more likely to malfunction in the later stage. Therefore, it is preferred that the magnetic field of the second magnet 74 is opposite to that of the first magnet 73 facing outward to reduce the failure rate in later use.

[0042] In this embodiment, the scalloped disc 3 is arranged on the outer side surface of the side wall of the drum 1, and the gear 4 is arranged on the side wall of the mounting groove 21 corresponding to the scalloped disc 3. The first magnet 73 and the second magnet 74 are arranged on the outer side surface of the other side wall of the drum 1 and are arranged opposite to the scalloped disc 3. The control circuit board 62 is arranged on the other side wall of the mounting groove 21 and is arranged opposite to the gear 4. The drive device 61 is arranged close to the gear 4. In other words, the first magnet 73 and the second magnet 74 are not arranged on the same side as the scalloped disc. Because the arrangement of the gear and the drive device 61 on the same side is more complicated, and the drive device 61 will generate vibration when driving the gear, the control circuit board and the first and second sensor chips are arranged on the other side wall to protect the control circuit board. The rotation of the gear will not affect the magnetic field sensed by the first chip and the magnetic field sensed by the first magnet. In general, the positioning of the scalloped disc 3, the first magnet 73, the second magnet 74, the control circuit board 62, the first sensor chip 71 and the second sensor chip 72 make the operation of the pet toilet more stable.

[0043] In this embodiment, the pet toilet also includes a control key 8 for controlling the rotation of the drum 1. The control key 8 is arranged on the outer side of the base 2 and is electrically connected to the control circuit board 62, so that the user can set the rotation of the drum and the stay time when in the defecation position. The Hall sensing device can also be turned on and off to increase the user's usage scenarios.

[0044] In this embodiment, the pet toilet also includes a screen assembly 9, which is connected to the drum 1. The screen assembly 9 and the inner wall of the drum 1 form a second receiving space 91. The second receiving space 91 is adjacent to the first receiving space 12. The screen assembly 9 is used to screen pet litter and pet excrement. When the first opening 11 rotates with the drum 1 from the initial position to the defecation position, the pet litter can enter the second receiving space 91 through the screen assembly 9, and the excrement is restricted outside the second receiving space 91 so that the excrement can be discharged into the collecting bowl 5 through the first opening 11 by its own gravity. When the first opening 11 rotates with the drum 1 from the defecation position to the initial position, the pet litter in the second receiving space 91 can pass through the screen assembly 9 and fall back into the first receiving space 12 by its own gravity. Furthermore, when the angle β is in the range of 15-30 degrees, the capacity of the second receiving space 91 is roughly equivalent to that of the first receiving space 12, so that the second receiving space 91 matches the first receiving space 12. If the capacity of the second accommodating space 91 is significantly larger than that of the first accommodating space 12, the separated clean cat litter only occupies a small amount of space in the second accommodating space 91, resulting in a waste of the overall space of the drum; if the capacity of the second accommodating space 91 is significantly smaller than that of the first accommodating space 12, the second accommodating space 91 cannot fully accommodate the separated clean cat litter, and part of the clean cat litter is poured into the litter box along with the contaminated cat litter. The clean cat litter cannot be completely recovered, resulting in a waste of clean cat litter.

[0045] In this embodiment, the pet toilet further includes support legs 22 for supporting the base 2 so that there is a gap between the base 2 and the support platform. The litter box 5 is disposed in the gap to facilitate the user to take and place the litter box.

[0046] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A pet toilet, characterized in that: The pet toilet includes A drum (1), the drum (1) having a first opening (11) and a first accommodating space (12), the first opening (11) being in communication with the first accommodating space (12), the first accommodating space (12) being used to accommodate pet excrement and pet litter; a base (2), on which the roller (1) is rotatably mounted; A scalloped disc (3), the scalloped disc (3) being arranged on the drum (1), the scalloped disc (3) comprising a toothed section (31) and a smooth section (32), the two ends of the toothed section (31) being respectively connected to the two ends of the smooth section (32); A gear (4), the gear (4) being arranged on the base (2), the tooth segment (31) being engaged with the gear (4), so that when the gear (4) rotates, the scalloped disc (3) drives the roller (1) to rotate; A stool collecting pan (5), the stool collecting pan (5) is arranged on the base (2), the drum (1) has an initial position and a defecation position, when the drum (1) is in the defecation position, the first opening (11) is opposite to the first opening (11) of the stool collecting pan (5), the gear (4) is engaged with the tooth segment (31) and is close to the smooth segment (32), and the drum (1) and the base (2) form a second opening (201) for pets to enter and exit the drum (1); a control device (6), the control device (6) being used to control the rotation of the gear (4); a Hall sensor device, the Hall sensor device being electrically connected to the control device (6), the Hall sensor device being used to detect whether the drum (1) is in the initial position or the defecation position, and when the Hall sensor device detects that the drum (1) is in the initial position or the defecation position, the sensing signal of the Hall sensor device is transmitted to the control device (6); When the Hall sensor device fails when the drum (1) is in the defecation position, the gear (4) rotates along the tooth segment (31) toward the end (301) of the tooth segment (31) until it rotates into the smooth segment (32), the drum (1) stops rotating, and the opening of the second opening (201) becomes smaller to form a third opening (202) for pets to enter and exit the drum (1); when the Hall sensor device fails when the drum (1) is in the initial position, the gear (4) rotates along the tooth segment (31) toward the starting end (302) of the tooth segment (31) until it rotates into the smooth segment (32), the drum (1) stops rotating, and the drum (1) and the base (2) form a fourth opening (203) for pets to enter and exit the drum (1).

2. A pet toilet according to claim 1, characterized in that: The roller (1) has a center (101), and the first opening (11) has a transverse center line (102) and a longitudinal center line (103), wherein the transverse center line (102) and the longitudinal center line (103) intersect each other perpendicularly to form the center point of the first opening (11), and the roller (1) rotates along the transverse center line (102), and the two ends of the longitudinal center line (103) extend and intersect with the side edges of the first opening (11) to form a first intersection point (1031) and a second intersection point (1032). The second intersection point (1032) is connected to the center of the circle (101), the first intersection point (1031) is connected to the center of the circle (101) to form a first straight line (1011), the second intersection point (1032) is connected to the center of the circle (101) to form a second straight line (1012), a first angle (α) is formed between the first straight line (1011) and the second straight line (1012), the first angle (α) is toward the first opening (11), and the first angle (α) is 110-150 degrees.

3. A pet toilet according to claim 2, characterized in that: When the roller (1) is in an initial position, the base (2) has a transverse plane (204), the roller (1) and the base (2) are arranged in sequence from top to bottom, and the transverse center line (102) is parallel to the transverse plane (204) of the base (2), and the transverse plane (204) of the base (2) can be located on the center (101). When the transverse plane (204) of the base (2) is located on the center (101), a second angle (β) is formed between the second straight line (1012) and the transverse plane (204) of the base (2), and the second angle (β) is 15-30 degrees.

4. A pet toilet according to claim 1, characterized in that: The Hall sensing device comprises a first sensor chip (71), a second sensor chip (72), a first magnet (73) and a second magnet (74); the first sensor chip (71) and the second sensor chip (72) are both electrically connected to the control device (6); the first sensor chip (71) is used to sense the first magnet (73); and the first sensor chip (71) and the first magnet (73) are respectively arranged on the base (2) and the roller (1); when the roller (1) is in the initial position, the first sensor chip (71) senses the first magnet (73); the second sensor chip (72) and the second magnet (74) are respectively arranged on the base (2) and the roller (1); and when the roller (1) rotates to the defecation position, the second sensor chip (72) senses the second magnet (74).

5. A pet toilet according to claim 4, characterized in that: The control device (6) comprises a driving device (61) and a control circuit board (62). The driving device (61) is electrically connected to the control circuit board (62). The driving device (61) is used to drive the gear (4). The first sensor chip (71) and the second sensor chip (72) are both arranged on the control circuit board (62).

6. A pet toilet according to claim 5, characterized in that: The base (2) has a mounting groove (21), the toilet bowl (5) is arranged at the bottom of the mounting groove (21), the roller (1) is arranged at the opening of the mounting groove (21), the driving device (61), the control circuit board (62) and the gear (4) are installed in the mounting groove (21), the spherical tooth plate (3) is arranged on the roller (1) corresponding to the gear (4), the first magnet (73) and the second magnet (74) are arranged on the roller (1), and the first magnet (73) and the second magnet (74) are arranged on the roller (1), and the first magnet (74) and the second magnet (74) are arranged on the roller (1). A magnet (73) is provided corresponding to the end (301) of the tooth segment (31), so that the first sensor chip (71) senses the first magnet (73) and transmits a signal indicating that the roller (1) is in the defecation position to the control circuit board (62); and the second magnet (74) is provided corresponding to the starting end (302) of the tooth segment (31), so that the second sensor chip (72) senses the second magnet (74) and transmits a signal indicating that the roller (1) is in the initial position to the control circuit board (62).

7. A pet toilet according to claim 6, characterized in that: The scalloped disc (3) is arranged on the outer side surface of the side wall of the drum (1); the gear (4) is arranged on the side wall of the mounting groove (21) corresponding to the scalloped disc (3); the first magnet (73) and the second magnet (74) are arranged on the outer side surface of the other side wall of the drum (1) and are arranged opposite to the scalloped disc (3); the control circuit board (62) is arranged on the other side wall of the mounting groove (21) and is arranged opposite to the gear (4); and the driving device (61) is arranged close to the gear (4).

8. The pet toilet according to claim 5, characterized in that: The pet toilet further comprises a control key (8) for controlling the rotation of the drum (1); the control key (8) is arranged on the outer side of the base (2) and is electrically connected to the control circuit board (62).

9. The pet toilet according to claim 1, characterized in that: The pet toilet further comprises a screen assembly (9), wherein the screen assembly (9) is connected to the drum (1), and the screen assembly (9) and the inner wall of the drum (1) are surrounded to form a second accommodating space (91), and the second accommodating space (91) is adjacent to the first accommodating space (12). The screen assembly (9) is used to sieve the pet litter and pet excrement. When the first opening (11) rotates from the initial position to the defecation position along with the drum (1), the pet litter can enter the second accommodating space (91) through the screen assembly (9), and the excrement is restricted outside the second accommodating space (91), so that the excrement can be discharged into the collecting bowl (5) through the first opening (11) by its own gravity. When the first opening (11) rotates from the defecation position to the initial position along with the drum (1), the pet litter in the second accommodating space (91) can pass through the screen assembly (9) and fall back into the first accommodating space (12) by its own gravity.

10. The pet toilet according to claim 1, characterized in that: The pet toilet further comprises a supporting leg (22), wherein the supporting leg (22) is used to support the base (2) so that there is a gap between the base (2) and the supporting platform, and the litter box (5) is arranged in the gap.

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