Automatic pet toilet

Abstract

This utility model relates to an automatic pet toilet, comprising a main body, a drive unit, and a scooping device. The main body has a litter trough for pets to excrete, and the inner wall of the litter trough has a track groove extending from a first end to a second end. The drive unit is located within the main body and is used to drive the scooping device to move between the two ends of the litter trough to separate cat litter from litter clumps, thereby automatically cleaning the pet toilet. In this application, the drive unit includes a motor, a reduction gear set, a transmission shaft, and a bevel gear set installed at the first end of the litter trough, and a screw installed between the two ends of the litter trough. The motor drives the screw to rotate. The scooping device includes a litter scoop and a mounting component. The mounting component is threaded through the track groove and threaded onto the screw. The rotation of the screw drives the mounting component and the litter scoop to reciprocate along the track groove. Therefore, the motor installed at the first end of the litter trough can drive the scooping device to move between the two ends of the litter trough to clean the pet toilet.

Description

Technical Field

[0001] This utility model relates to the field of pet toilet technology, and in particular to an automatic pet toilet that scoops up feces. Background Technology

[0002] Pet toilets, such as cat litter boxes, are devices used to store cat litter. Trained cats will come to the litter box when they need to relieve themselves and defecate on the litter inside. Cat urine and solid feces will clump together in the litter box, requiring timely cleaning to prevent odor. Therefore, some people have designed litter boxes with self-cleaning functions. Many pet toilets on the market also have automatic scooping functions. However, the motor in these types of pet toilets usually needs to move synchronously with the scoop, so additional mounting structures are needed on the litter box or scoop to house the motor, resulting in a more complex and larger overall structure. Utility Model Content

[0003] The present invention provides an automatic pet toilet that solves the technical problem that traditional smart pet toilets require additional installation structures on the basin or scoop to install a motor, resulting in a more complex structure and larger size for the entire pet toilet.

[0004] This utility model discloses an automatic pet toilet that scoops up poop, comprising:

[0005] The main body has a sand trough, which is provided with a passage for pets to enter and exit. The inner side wall of the sand trough is provided with a track groove, which extends from a first end of the sand trough to a second end of the sand trough.

[0006] The driving device includes a connected motor, a reduction gear set, a transmission shaft, a bevel gear set, and a screw. The motor, the reduction gear set, the transmission shaft, and the bevel gear set are mounted at the first end of the sand groove. The screw is rotatably mounted on the main body and located between the first and second ends of the sand groove. The axis of the motor is parallel to the axial direction of the transmission shaft, the axial direction of the transmission shaft is perpendicular to the axial direction of the screw, and the axial direction of the screw is parallel to the extension direction of the track groove. The motor drives the transmission shaft to rotate through the reduction gear set, and the transmission shaft drives the screw to rotate through the bevel gear set, thereby causing the motor to drive the screw to rotate.

[0007] A pusher device is located inside the sand trough. The pusher device includes a sand shovel and a mounting component. The sand shovel is slidably mounted on the track groove via the mounting component, and the mounting component is threaded through by the screw. The rotation of the screw drives the mounting component to reciprocate along the track groove, and the mounting component drives the sand shovel to move between the first end and the second end of the sand trough.

[0008] In one embodiment, the bevel gear set includes a meshing first bevel gear and a second bevel gear, the axis of the first bevel gear being perpendicular to the axis of the second bevel gear; the first bevel gear is connected to the end of the drive shaft away from the reduction gear set, and the first bevel gear rotates synchronously with the drive shaft; the second bevel gear is connected to the end of the screw near the first end of the sand groove, and the second bevel gear rotates synchronously with the screw.

[0009] In one embodiment, at the connection position between the drive shaft and the first bevel gear, one of the drive shaft and the first bevel gear is provided with a first insertion hole, and the other is provided with a first insertion block. The first insertion block is inserted into the first insertion hole along the axial direction of the drive shaft. At least one of the inner peripheral wall of the first insertion hole and the outer peripheral wall of the first insertion block is non-circular, so that the drive shaft and the first bevel gear are circumferentially limited in their connection.

[0010] And / or, at the connection position between the screw and the second bevel gear, one of the screw and the second bevel gear is provided with a second insertion hole, and the other is provided with a second insertion block. The second insertion block is inserted into the second insertion hole along the axial direction of the screw. At least one of the inner peripheral wall of the second insertion hole and the outer peripheral wall of the second insertion block is non-circular, so that the screw and the second bevel gear are circumferentially limited and connected.

[0011] In one embodiment, the reduction gear set includes a meshing first spur gear and a second spur gear, the axis of the first spur gear and the axis of the second spur gear being parallel to each other; the output end of the motor is connected to the first spur gear, the first spur gear rotates synchronously with the motor, and the transmission shaft is fixedly connected to the second spur gear and rotates synchronously with the second spur gear; wherein, the number of teeth of the first spur gear is less than the number of teeth of the second spur gear.

[0012] In one embodiment, the drive device includes a set screw that passes through the second spur gear and the drive shaft in sequence along the radial direction of the drive shaft, such that the drive shaft and the second spur gear are circumferentially limited and connected.

[0013] In one embodiment, the mounting component includes a slider and a connecting rod, the slider being threaded through the screw, and the connecting rod passing through the track groove with its two ends connected to the sand shovel and the slider, respectively; wherein one end of the connecting rod is detachably inserted into the sand shovel, and / or the other end of the connecting rod is detachably inserted into the slider.

[0014] In one embodiment, the driving device further includes a slide bar, which is fixedly installed on the main body and located between the first end and the second end of the sand groove. The slide bar is parallel to and spaced apart from the screw on the main body. The mounting member is movably sleeved on the slide bar and can move synchronously on the screw and the slide bar.

[0015] In one embodiment, there is one motor and one reduction gear set, and two drive shafts, two bevel gear sets, two screws, two mounting pieces, and two track grooves. The two drive shafts are respectively connected to opposite sides of the reduction gear set, and the ends of the two drive shafts away from the reduction gear set are respectively connected to the two bevel gear sets. The two bevel gear sets, the two screws, the two track grooves, and the two mounting pieces are all symmetrically arranged relative to the main body, so that one motor drives the two screws to rotate.

[0016] In one embodiment, the main body includes a detachable base and a sand basin. The base has a hollow structure with openings at both ends. The sand basin covers one end opening of the hollow structure to enclose and form the sand trough. The driving device is located on the base. The track groove is formed on the inner sidewall of the hollow structure. The sand shovel is slidably connected to the base.

[0017] In one embodiment, at the position where the base and the sand basin meet, one of them is provided with a positioning protrusion and the other with a positioning groove. When the sand basin covers the opening on one side of the hollow structure, the positioning protrusion is aligned and engaged in the positioning groove along the depth direction of the sand groove.

[0018] And / or, at the position where the base connects with the sand basin, one of them has two protrusions on the opposite outer wall of the sand trough, and the other has two buckles rotatably connected to the opposite outer wall of the sand trough. When the sand basin is closed on one side opening of the hollow structure, the buckles can rotate relative to the main body and hook onto the protrusions.

[0019] As can be seen from the above technical solution, the embodiments of this utility model have at least the following advantages and positive effects:

[0020] This utility model provides an automatic litter box for pets, including a main body, a drive unit, and a scooping device. The main body has a litter trough for pets to excrete, and the inner wall of the litter trough has a track groove extending from the first end to the second end of the litter trough. The drive unit is located inside the main body and is used to drive the scooping device to move between the two ends of the litter trough to separate cat litter and clumps of litter, automatically cleaning the pet litter box. In this application, on the one hand, the user only needs to operate the motor to start and stop to drive the litter scoop to move and separate and clean the cat litter, making the operation intelligent and convenient; on the other hand, since the motor and related transmission mechanisms (motor, reduction gear set, drive shaft and bevel gear set) are all installed in an orderly manner at the first end of the litter trough of the main body, the motor and transmission mechanism in the drive unit will not move with the scooping device. This design not only makes the entire pet litter box smaller and lighter, but also effectively reduces noise, allowing pets to use the toilet in a more relaxed and comfortable environment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of an automatic pet toilet according to an embodiment of this application;

[0023] Figure 2 for Figure 1 A schematic diagram of the installation structure of the drive unit in a pet toilet is shown.

[0024] Figure 3 for Figure 1 The diagram shows the exploded structure of an automatic litter box;

[0025] Figure 4 for Figure 3 Another structural diagram of the base shown in the exploded view;

[0026] Figure 5 for Figure 3 Another structural schematic diagram of the drive device from the exploded view shown;

[0027] Figure 6 for Figure 5 A partial exploded structural diagram of the drive device shown.

[0028] Figure 7 For Figure 3The exploded view shows a magnified view of the partial structure at point A.

[0029] The annotations in the attached figures are explained as follows:

[0030] 1. Automatic pet toilet with scooping function;

[0031] 10. Main body; 11. Sand trough; 111. First end; 112. Second end; 113. Track groove; 12. Base; 12a. Hollow structure; 121. Positioning protrusion; 122. Protrusion; 13. Sand basin; 131. Positioning groove; 132. Buckle;

[0032] 20. Drive unit; 21. Motor; 22. Reduction gear set; 221. First spur gear; 222. Second spur gear; 23. Drive shaft; 231. First insert block; 24. Bevel gear set; 241. First bevel gear; 242. Second bevel gear; 243. First insertion hole; 244. Second insertion hole; 25. Screw; 251. Second insert block; 26. Set screw; 27. Slide rod;

[0033] 30. Pusher device; 31. Sand shovel; 32. Mounting component; 321. Sliding block; 322. Connecting rod;

[0034] 40. Toilet box. Detailed Implementation

[0035] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] Combination Figure 1-3 This application provides an automatic litter box 1, including a main body 10, a drive unit 20, and a scooping device 30. The main body 10 has a litter trough 11 for holding pet litter (e.g., cat litter). The litter trough 11 is provided with a passage for pets to enter and exit, thus providing a space for pets to defecate. The drive unit 20 is installed on the main body 10 and located outside the litter trough 11, while the scooping device 30 is installed on the main body 10 and located inside the litter trough 11. The drive unit 20 can drive the scooping device 30 to move between the first end 111 and the second end 112 of the litter trough 11 to separate clean cat litter from litter clumps formed by pet excrement, thereby automatically cleaning the pet litter box 1. Optionally, a waste collection box 40 can be detachably installed on the second end 112 of the litter trough 10 to collect litter clumps containing pet excrement.

[0039] Continue to combine Figure 1-3 The inner wall of the sand trough 11 is provided with a track groove 113, which extends from the first end 111 of the sand trough 11 to the second end 112 of the sand trough 11. The drive device 20 includes a connected motor 21, a reduction gear set 22, a transmission shaft 23, a bevel gear set 24, and a screw 25. The motor 21, reduction gear set 22, transmission shaft 23, and bevel gear set 24 are all mounted on the main body 10 and located at the first end 111 of the sand trough 11. The screw 25 is rotatably mounted on the main body 10 and located between the first end 111 and the second end 112 of the sand trough 11. Figure 3 As shown, the axis of motor 21 is parallel to the axis of transmission shaft 23, and the axis of transmission shaft 23 is perpendicular to the axis of screw 25. Motor 21 drives transmission shaft 23 to rotate through reduction gear set 22, and transmission shaft 23 drives screw 25 to rotate through bevel gear set 24, thus enabling motor 21 to drive screw 25 to rotate. This achieves power transmission and rotation direction change from motor 21 to screw 25, allowing motor 21 to drive the reciprocating movement of pusher device 30 without moving with it. Furthermore, pusher device 30 includes sand shovel 31 and mounting member 32. Sand shovel 31 is slidably mounted on track groove 113 and located within sand groove 11 via mounting member 32, which is threaded through by screw 25. Motor 21 drives screw 25 to rotate, and the rotation of screw 25 drives mounting member 32 to reciprocate along track groove 113. Mounting member 32 drives sand shovel 31 to move between the first end 111 and the second end 112 of sand groove 11.

[0040] Regarding the automatic litter-scooping pet toilet 1 provided in this application, on the one hand, users only need to operate the motor 21 to start and stop it with one button to drive the litter scoop 31 to move and separate and clean the cat litter. The operation is intelligent and convenient. It can be controlled by the button on the pet toilet 1 or by wireless signal connection. On the other hand, since the motor 21 and related transmission mechanisms (reduction gear set 22, transmission shaft 23 and bevel gear set 24) are all installed in an orderly manner at the first end 111 of the litter trough 11 of the main body 10, the motor 21 and transmission mechanism in the drive device 20 will not move with the scooping device 30. This design not only makes the entire pet toilet 1 smaller and lighter, but also effectively reduces noise, allowing pets to use the toilet in a more relaxed and comfortable environment.

[0041] Preferably, in conjunction with reference Figure 1-3 In one embodiment, the main body 10 includes a detachable base 12 and a litter box 13. The base 12 is a hollow structure 12a with openings at both ends. The litter box 13 covers one opening of the hollow structure 12a to form the aforementioned litter trough 11. That is, the bottom wall of the litter trough 11 is formed in the litter box 13, and the side wall of the litter trough 11 is formed by the inner side wall of the hollow structure 12a and the inner side wall of the litter box 13. A drive device 20 is located on the base 12, a track groove 113 is formed in the inner side wall of the hollow structure 12a, and a litter shovel 31 is slidably connected to the base 12. This design allows the litter box 13 to be detached from the entire pet toilet 1. The base 12, on the one hand, raises the inner side wall of the litter trough 11 to prevent litter from spilling out, and on the other hand, provides installation space for the drive device 20 and the shovel device 30. Here, users typically fill the litter box 13 with an appropriate amount of cat litter. When it's time to change the litter, the user can easily detach the litter box 13 to empty and clean it, keeping the entire pet toilet 1 clean and hygienic. It should be understood that in other embodiments, the base 12 and the litter box 13 can also be integrally formed, allowing the user to directly clean the entire pet toilet 1 when changing the litter.

[0042] Preferably, in conjunction with reference Figure 3 and Figure 4 In one embodiment, at the junction of the base 12 and the sand basin 13, the base 12 has a positioning protrusion 121, and the sand basin 13 has a positioning groove 131. When the sand basin 13 covers one side opening of the hollow structure 12a, the positioning protrusion 121 is aligned and engaged with the positioning groove 131 along the depth direction of the sand groove 11. Here, the positioning protrusion 121 and the positioning groove 131 are in a mating engagement relationship, so their positions can be interchanged to achieve the same engagement effect. That is, in another embodiment, the sand basin 13 has a positioning protrusion 121, and the base 12 has a positioning groove 131, which allows the base 12 and the sand basin 13 to achieve the same engagement effect.

[0043] Preferably, in conjunction with reference Figure 2 and Figure 3 In one embodiment, at the junction of the base 12 and the sand basin 13, the base 12 has two protrusions 122 on the outer walls of opposite sides of the sand trough 11, and the sand basin 13 has two buckles 132 rotatably connected to the outer walls of opposite sides of the sand trough 11. The two protrusions 122 correspond one-to-one with the two buckles 132. When the sand basin 13 is closed over one side opening of the hollow structure 12a, the buckles 132 can rotate relative to the sand basin 13 (body 10) and hook onto the protrusions 122. Here, the protrusions 122 and the buckles 132 are in a mating engagement relationship, so their positions can be interchanged to achieve the same engagement effect. That is, in another embodiment, the sand basin 13 has protrusions 122, and the base 12 has buckles 132; the buckles 132 can also rotate relative to the base 12 and hook onto the protrusions 122.

[0044] It should be noted that the engagement between the positioning protrusion 121 and the positioning groove 131, and the engagement between the protrusion 122 and the buckle 132 are specific means to achieve the detachable connection between the base 12 and the litter box 13. Both means can be set simultaneously to improve the assembly stability of the entire pet toilet 1, or they can be set individually. Of course, in other embodiments, any other means that can achieve the detachable connection between the base 12 and the litter box 13 should be included.

[0045] Preferably, in conjunction with reference Figure 1 and Figure 5 In one embodiment, there is one motor 21 and one reduction gear set 22, and two drive shafts 23, two bevel gear sets 24, two screws 25, two mounting parts 32, and two track grooves 113. The two drive shafts 23 are respectively connected to opposite sides of the reduction gear set 22, and the ends of the two drive shafts 23 away from the reduction gear set 22 are respectively connected to the two bevel gear sets 24. The two bevel gear sets 24, two screws 25, two mounting parts 32, and two track grooves 113 are all arranged symmetrically about the left and right sides of the main body 10. Here, one motor 21 drives the two drive shafts 23 to rotate through one reduction gear set 22, and the two drive shafts 23 drive the two screws 25 to rotate through the two bevel gear sets 24. That is, one motor 21 can drive the two screws 25 to rotate, thereby causing the two mounting parts 32 to reciprocate along the two track grooves 113, and the sand shovel 31 moves between the first end 111 and the second end 112 of the sand groove 11.

[0046] It should be understood that the above design enables dual-sided driving and sliding installation of the sand shovel 31, greatly improving the stability of the sliding installation and the smoothness of reciprocating movement of the sand shovel 31, and improving the cleaning efficiency and cleaning effect of the sand shovel 31 on the sand trough 11. Of course, in other embodiments, the number of drive shaft 23, bevel gear set 24, screw 25, mounting part 32, and track groove 113 are all set to one, so as to realize single-sided driving of the sand shovel 31, which can also make the sand shovel 31 move between the first end 111 and the second end 112 of the sand trough 11.

[0047] Preferably, refer to Figure 5 In one embodiment, the bevel gear set 24 includes a meshing first bevel gear 241 and a second bevel gear 242, with the axis of the first bevel gear 241 perpendicular to the axis of the second bevel gear 242. The first bevel gear 241 is connected to the end of the drive shaft 23 away from the reduction gear set 22, and its axis is parallel to the axial direction of the drive shaft 23. The first bevel gear 241 rotates synchronously with the drive shaft 23. The second bevel gear 242 is connected to the end of the screw 25 near the first end 111 of the sand groove 11, and its axis is parallel to the axial direction of the screw 25. The second bevel gear 242 rotates synchronously with the screw 25. The motor 21 is started, driving the drive shaft 23 to rotate. The drive shaft 23 drives the screw 25 to rotate through the two bevel gears with perpendicular axes. Here, bevel gears, also known as bevel gears, have their axes forming an angle with the tooth groove lines. The bevel gear set 24 can not only change the transmission speed but also the transmission direction, so that the motor 21 fixed at the first end 111 of the sand trough 11 can drive the movement of the pusher device 30 without moving. It should be understood that in this application, the number of gears in the bevel gear set 24 is not limited. In other embodiments, the transmission direction can also be changed by multiple bevel gears meshing sequentially.

[0048] Preferably, in conjunction with reference Figure 5 and Figure 6In one embodiment, at the connection point between the drive shaft 23 and the first bevel gear 241, one of the drive shaft 23 and the first bevel gear 241 is provided with a first insertion hole 243, and the other is provided with a first insertion block 231. The first insertion block 231 is inserted into the first insertion hole 243 along the axial direction of the drive shaft 23. At least one of the inner peripheral wall of the first insertion hole 243 and the outer peripheral wall of the first insertion block 231 is non-circular, so that the drive shaft 23 and the first bevel gear 241 are circumferentially limited and connected, that is, the drive shaft 23 and the first bevel gear 241 rotate synchronously. In addition, at the connection point between the screw 25 and the second bevel gear 242, one of the screw 25 and the second bevel gear 242 is provided with a second insertion hole 244, and the other is provided with a second insertion block 251. The second insertion block 251 is inserted into the second insertion hole 244 along the axial direction of the screw 25. At least one of the inner peripheral wall of the second insertion hole 244 and the outer peripheral wall of the second insertion block 251 is non-circular, so that the screw 25 and the second bevel gear 242 are circumferentially limited, that is, the screw 25 and the second bevel gear 242 rotate synchronously.

[0049] It should be understood that non-circular inserts and sockets can achieve contact and circumferential limiting. In other embodiments, protrusions and grooves can also be provided on the outer wall of the insert and the inner wall of the socket to cooperate and achieve circumferential limiting. Therefore, the presence or absence of the first socket 243 and the first insert 231, or the second socket 244 and the second insert 251, is not limited. In this application, any connection method that can satisfy circumferential limiting should be protected.

[0050] Preferably, refer to Figure 5 In one embodiment, the reduction gear set 22 includes a meshing first spur gear 221 and a second spur gear 222, with the axis of the first spur gear 221 and the axis of the second spur gear 222 parallel to each other. The output end of the motor 21 is connected to the first spur gear 221, and the first spur gear 221 rotates synchronously with the motor 21. The transmission shaft 23 is fixedly connected to the second spur gear 222 and rotates synchronously with the second spur gear 222. The number of teeth on the first spur gear 221 is less than the number of teeth on the second spur gear 222, meaning the transmission ratio of the reduction gear set 22 is greater than 1, thus providing a speed reduction function; that is, the rotational speed of the transmission shaft 23 is less than the rotational speed of the motor 21. It should be noted that the axis of the spur gear is parallel to the tooth groove line. Generally, the meshing clearance of the two gears is consistent, resulting in a tight and stable meshing. Therefore, the radial dimension of the second spur gear 222 is greater than the radial dimension of the first spur gear 221. It should be understood that in this application, the number of gears in the reduction gear set 22 is not limited. In other embodiments, multiple spur gears can be meshed sequentially to change the transmission direction. Furthermore, the rotational speed of the drive shaft 23 and the screw 25 can be controlled by changing the transmission ratio between the two spur gears and the two bevel gears, thereby controlling the movement speed of the sand shovel 31 and the mounting part 32 in the sand trough 11.

[0051] Preferably, in conjunction with reference Figure 5 and Figure 6 In one embodiment, the drive device 20 includes a set screw 26, which passes through the second spur gear 222 and the drive shaft 23 radially, thereby limiting the circumferential movement of the drive shaft 23 and the second spur gear 222 and enabling them to rotate synchronously. Here, there can be one drive shaft 23 that passes through the second spur gear 222, and in this case, there can be one set screw 26. In other embodiments, when there are two drive shafts 23 (as described above), there are also two set screws 26.

[0052] It should be understood that the set screw 26 is provided to achieve circumferential limiting between the drive shaft 23 and the second spur gear 222. In other embodiments, circumferential limiting can also be achieved by providing a non-circular contact side wall at the connection position between the drive shaft 23 and the second spur gear 222. In other embodiments, matching protrusions and grooves can also be provided at the connection position between the drive shaft 23 and the second spur gear 222 at the outer side wall of the drive shaft 23 and the inner side wall of the shaft hole of the second spur gear 222 to achieve circumferential limiting between the two. Therefore, the presence or absence of the set screw 26 is not limited. In this application, any connection method that can satisfy the circumferential limiting of the drive shaft 23 and the second spur gear 222 should be protected.

[0053] Preferably, in conjunction with reference Figure 7 In one embodiment, the mounting component 32 includes a slider 321 and a connecting rod 322. The slider 321 is threaded through by a screw 25, and the connecting rod 322 passes through the track groove 113, with its two ends connected to the sand shovel 31 and the slider 321, respectively. The axis of the connecting rod 322 is perpendicular to the track groove 113. One end of the connecting rod 322 is detachably inserted into the sand shovel 31, and / or the other end is detachably inserted into the slider 321, so that the sand shovel 31 is detachable from the body 10. It is understood that the user can remove the sand shovel 31 from the body 10 for cleaning or replace it with a new one. Optionally, in other embodiments, the mounting member 32 can be integrally formed on the opposite sides of the sand shovel 31, and the track groove 113 extends to the edge of the first end 111 of the sand groove 11 to form an opening. The sand shovel 31 can also be slidably removed from the track groove 113 by the mounting member 32, so that the sand shovel 31 (push device 30) can be disassembled and assembled to the main body 10. Of course, in other embodiments, the sand shovel 31 can also be set without being disassembled to the main body 10.

[0054] Preferably, combined with Figure 2 and Figure 3The drive device 20 also includes a slide rod 27, which is fixedly installed on the main body 10 and located between the first end 111 and the second end 112 of the sand trough 11. The slide rod 27 is parallel to and spaced apart from the screw 25 on the main body 10. The mounting member 32 is movably sleeved on the slide rod 27 and can slide synchronously on the screw 25 and the slide rod 27. Here, the slide rod 27 provides support for the mounting member 32 and prevents the mounting member 32 from radially shifting during sliding, thereby improving the stability and smoothness of the sand shovel 31's movement. It should be understood that in other embodiments, the slide rod 27 is not provided, and a groove parallel to the axial direction of the screw 25 can be provided between the first end 111 and the second end 112 of the sand trough 11. The mounting member 32 is partially confined within the groove, which can also improve the stability and smoothness of the sand shovel 31's movement. In addition, the track groove 113 itself can provide support and anti-shift functions for the mounting member 32. Therefore, in this application, the presence or absence of the slide rod 27 is not limited.

[0055] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. An automatic pet toilet, characterized in that, include: The main body has a sand trough, which is provided with a passage for pets to enter and exit. The inner side wall of the sand trough is provided with a track groove, which extends from a first end of the sand trough to a second end of the sand trough. The driving device includes a connected motor, a reduction gear set, a transmission shaft, a bevel gear set, and a screw. The motor, the reduction gear set, the transmission shaft, and the bevel gear set are mounted at the first end of the sand groove. The screw is rotatably mounted on the main body and located between the first and second ends of the sand groove. The axis of the motor is parallel to the axial direction of the transmission shaft, the axial direction of the transmission shaft is perpendicular to the axial direction of the screw, and the axial direction of the screw is parallel to the extension direction of the track groove. The motor drives the transmission shaft to rotate through the reduction gear set, and the transmission shaft drives the screw to rotate through the bevel gear set, thereby causing the motor to drive the screw to rotate. A pusher device is located inside the sand trough. The pusher device includes a sand shovel and a mounting component. The sand shovel is slidably mounted on the track groove via the mounting component, and the mounting component is threaded through by the screw. The rotation of the screw drives the mounting component to reciprocate along the track groove, and the mounting component drives the sand shovel to move between the first end and the second end of the sand trough.

2. The automatic litter-scooping pet toilet according to claim 1, characterized in that, The bevel gear set includes a meshing first bevel gear and a second bevel gear, the axis of the first bevel gear and the axis of the second bevel gear are perpendicular to each other; the first bevel gear is connected to the end of the drive shaft away from the reduction gear set, and the first bevel gear rotates synchronously with the drive shaft; the second bevel gear is connected to the end of the screw near the first end of the sand groove, and the second bevel gear rotates synchronously with the screw.

3. The automatic litter-scooping pet toilet according to claim 2, characterized in that, At the connection position between the drive shaft and the first bevel gear, one of the drive shaft and the first bevel gear is provided with a first insertion hole, and the other is provided with a first insertion block. The first insertion block is inserted into the first insertion hole along the axial direction of the drive shaft. At least one of the inner peripheral wall of the first insertion hole and the outer peripheral wall of the first insertion block is non-circular, so that the drive shaft and the first bevel gear are circumferentially limited and connected. And / or, at the connection position between the screw and the second bevel gear, one of the screw and the second bevel gear is provided with a second insertion hole, and the other is provided with a second insertion block. The second insertion block is inserted into the second insertion hole along the axial direction of the screw. At least one of the inner peripheral wall of the second insertion hole and the outer peripheral wall of the second insertion block is non-circular, so that the screw and the second bevel gear are circumferentially limited and connected.

4. The automatic litter-scooping pet toilet according to claim 1, characterized in that, The reduction gear set includes a meshing first spur gear and a second spur gear, with the axis of the first spur gear and the axis of the second spur gear being parallel to each other; the output end of the motor is connected to the first spur gear, the first spur gear rotates synchronously with the motor, and the transmission shaft is fixedly connected to the second spur gear and rotates synchronously with the second spur gear; wherein, the number of teeth of the first spur gear is less than the number of teeth of the second spur gear.

5. The automatic litter-scooping pet toilet according to claim 4, characterized in that, The drive device includes a set screw, which passes through the second spur gear and the drive shaft in sequence along the radial direction of the drive shaft, so that the drive shaft and the second spur gear are circumferentially limited and connected.

6. The automatic litter-scooping pet toilet according to claim 1, characterized in that, The mounting component includes a slider and a connecting rod. The slider is threaded through the screw, and the connecting rod passes through the track groove and its two ends are respectively connected to the sand shovel and the slider. One end of the connecting rod is detachably inserted into the sand shovel, and / or the other end of the connecting rod is detachably inserted into the slider.

7. The automatic litter-scooping pet toilet according to claim 1, characterized in that, The driving device further includes a slide bar, which is fixedly installed on the main body and located between the first end and the second end of the sand groove. The slide bar is parallel to the screw and spaced apart from it on the main body. The mounting component is movably sleeved on the slide bar and can move synchronously on the screw and the slide bar.

8. The automatic litter-scooping pet toilet according to claim 1, characterized in that, The number of motors and reduction gear sets is one, and the number of drive shafts, bevel gear sets, screws, mounting parts, and track grooves is two each. The two drive shafts are respectively connected to opposite sides of the reduction gear sets, and the ends of the two drive shafts away from the reduction gear sets are respectively connected to the two bevel gear sets. The two bevel gear sets, the two screws, the two track grooves, and the two mounting parts are all symmetrically arranged relative to the main body, so that one motor drives the two screws to rotate.

9. The automatic litter-scooping pet toilet according to claim 1, characterized in that, The main body includes a detachable base and a sand basin. The base has a hollow structure with openings at both ends, and the sand basin covers one end opening of the hollow structure to form the sand trough. The driving device is located on the base, the track groove is formed on the inner sidewall of the hollow structure, and the sand shovel is slidably connected to the base.

10. The automatic litter-scooping pet toilet according to claim 9, characterized in that, At the location where the base and the sand basin meet, one of them is provided with a positioning protrusion and the other with a positioning groove. When the sand basin is covered by the opening on one side of the hollow structure, the positioning protrusion is aligned and engaged in the positioning groove along the depth direction of the sand groove. And / or, at the position where the base connects with the sand basin, one of them has two protrusions on the opposite outer wall of the sand trough, and the other has two buckles rotatably connected to the opposite outer wall of the sand trough. When the sand basin is closed on one side opening of the hollow structure, the buckles can rotate relative to the main body and hook onto the protrusions.

Images