Litter compartment for pet and pet toilet

Abstract

A litter compartment for a pet and a pet toilet. A litter compartment (130) for a pet is disposed in a pet toilet (100) for a pet to move around or excrete. The litter compartment (130) comprises an upper housing (133), a lower housing (132), a front frame (135), and a rear ring (134). The upper housing (133) and the lower housing (132) are connected to each other via a snap-fit or / and a plug-in connection or / and a pin connection to form a litter compartment body (103). The litter compartment body (103) is provided with a cavity (136) for accommodating the pet and an access opening (131) communicated with the cavity (136). The cavity (136) and the access opening (131) both are enclosed by the upper housing (133) and the lower housing (132). The access opening (131) is located on an end surface of the litter compartment body (103). The rear ring (134) is detachably sleeved on the litter compartment body (103) and is located at the end far away from the access opening (131) to prevent separation of the upper housing (133) and the lower housing (132). The front frame (135) is detachably connected to the litter compartment body (103) and is located at the edge position of the access opening (131). The front frame (135) has one part connected to the upper housing (133) and the other part connected to the lower housing (132).

Description

Sand bin for pets and pet toilet TECHNICAL FIELD

[0001] The present application relates to the technical field of pet products, in particular to a sand bin for pets and a pet toilet. BACKGROUND

[0002] With the continuous improvement of people's living standards, more and more families begin to raise pets, especially cats or dogs. In real life, pets have become a member of many families, so the health of pets is as important as family members. Some intelligent pet toilets have appeared on the market, which realize the automatic separation of pet excrement and pet sand. Among them, the important component in these intelligent pet toilets is the sand bin, which is used to accommodate pets and realize the separation of excrement and pet sand. Specifically, the automatic separation and resetting of excrement are realized by driving the large gear on the sand bin to rotate through the small gear on the host. Therefore, when the pet excretes in the sand bin, the smell in the sand bin becomes larger and larger, which brings bad influence to the user's living environment. At present, there is no sand bin convenient for users to clean on the market, and how to facilitate the cleaning of the sand bin is a technical problem to be solved at present.

[0003] SUMMARY

[0004] According to the deficiencies in the prior art, the technical problem solved by the present application is to provide a sand bin for pets and a pet toilet which is convenient to disassemble and assemble for easy cleaning.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is: a sand bin for pets is provided in a pet toilet for pets to move or excrete, the sand bin comprises an upper shell, a lower shell, a front frame and a rear ring, the upper shell and the lower shell are connected by buckle cooperation, plug-in cooperation or / and bolt cooperation to form a sand bin body, the sand bin body is provided with a cavity for accommodating pets and an entrance communicating with the cavity, the cavity and the entrance are enclosed by the upper shell and the lower shell, the entrance is located at one end face of the sand bin body, the rear ring is detachably provided on the sand bin body and located away from the entrance at one end to prevent the upper shell and the lower shell from separating; the front frame is detachably connected to the sand bin body and located at the edge of the entrance, the front frame has a part connected to the upper shell and a part connected to the lower shell.

[0006] Further, in the technical scheme, the front frame is a sleeve ring, and the sleeve ring surrounds the edge of the entrance.

[0007] Further, in the technical scheme, the sleeve ring and the sand bin body are fixedly connected by a concave positioning point and a convex positioning point, or / and are fixedly connected by an elastic buckle, or / and are fixedly connected by a bolt cooperation.

[0008] Further, the front frame comprises at least two arc sleeves, and the at least two arc sleeves are sleeved on the edge of the entrance and exit; each of the at least two arc sleeves is connected to the upper shell and the lower shell.

[0009] Further, the two arc sleeves are symmetrically sleeved on the edge of the entrance and exit.

[0010] Further, the rear ring is provided with a transmission tooth to form a gear structure, the transmission tooth is used to match the driving part in the pet toilet to rotate the sand bin, and the transmission tooth is a bevel gear.

[0011] Further, the angle between the axis of the rear ring and the axis of the driving part ranges from 10 degrees to 20 degrees.

[0012] Further, the angle between the axis of the rear ring and the axis of the driving part ranges from 12 degrees to 15 degrees.

[0013] Further, the sand bin body is provided with a folded edge, the rear ring is sleeved on the folded edge, and the rear ring and the folded edge are fixedly connected through concave positioning points and convex positioning points, elastic buckles or a pin.

[0014] Further, the folded edge is provided with at least two convex teeth, the rear ring is correspondingly provided with concave teeth matched with the convex teeth, and the concave teeth are located on the inner surface of the transmission tooth in the rear ring.

[0015] Further, the outer surface of the sand bin body is provided with a transmission tooth matched with the driving part in the pet toilet to rotate the sand bin.

[0016] Further, the rear ring is composed of multiple segments, one end of each segment is movably connected through a hinge structure, and the other two free ends of the first and last segments are respectively provided with connecting holes, the rear ring comprises a pin bridge, and the first and last segments are fixed through the pin bridge inserted into the two connecting holes.

[0017] Further, the sand bin body is provided with a clamping groove for accommodating a part of the rear ring, a side wall of the clamping groove is provided with a notch, and the rear ring is correspondingly provided with a protrusion matched with the notch.

[0018] Further, the sand bin body is provided with a clamping groove for accommodating a part of the rear ring, the clamping groove is provided with two insertion holes, and the pin bridge is first inserted into the two insertion holes and then inserted into the two connecting holes.

[0019] Further, the lower shell comprises a first inner shell, a fixing frame and a first outer shell in the technical solution, the fixing frame and the first outer shell are integrated by limiting structure sleeve connection, the inner surface of the first inner shell towards the cavity is provided as a smooth structure, the edge of the fixing frame is provided with a fixing groove, the first inner shell is provided with a fixing strip which can be fitted into the fixing groove, the fixing strip is located in the fixing groove, after the upper shell is connected with the lower shell, the upper shell abuts against the first inner shell.

[0020] Further, the first inner shell is a flexible member in the technical solution, and the first outer shell is provided with a breathable hole.

[0021] Further, the top end surface of the first inner shell extends to the side surface with a lug, the fixing strip is arranged at the bottom of the lug, and the upper shell abuts against the lug after the upper shell is connected with the lower shell.

[0022] Further, the first inner shell extends from the bottom of the cavity to the middle or a position above the middle.

[0023] Further, the upper shell comprises a second inner shell and a second outer shell in the technical solution, the second inner shell and the second outer shell are integrated by sleeve connection, and the inner surface of the second inner shell towards the cavity is provided as a smooth structure; the upper shell is provided with a discharge port, the discharge port penetrates the second inner shell and the second outer shell, the edge of the second inner shell at the discharge port is provided with a turned edge, and the turned edge penetrates the discharge port on the second outer shell.

[0024] Further, a sand filtering net is detachably connected to the inner surface of the second inner shell in the technical solution, and the sand filtering net is located in the cavity and separates a sand storage space.

[0025] Further, the sand filtering net is provided with a concave arc surface structure in the technical solution.

[0026] Further, the upper shell is further provided with a sand filtering net in the technical solution, the sand filtering net is located in the cavity and separates a sand storage space, and the sand filtering net is detachably connected to the upper shell.

[0027] Further, the sand filtering net is provided with a concave arc surface structure in the technical solution.

[0028] Further, a permanent magnet is further arranged on the sand bin body in the technical solution, the permanent magnet is used for cooperating with a dry reed or a Hall switch in the pet toilet, and the permanent magnet is located at one end of the rear ring.

[0029] Further, the upper shell and the lower shell are connected by snap fit to form the sand bin main body, one of the upper shell and the lower shell is provided with a plurality of hinged locks, and the other is provided with corresponding matching stops.

[0030] Further, the upper shell and the lower shell are connected by plug-in fit to form the sand bin main body, one of the upper shell and the lower shell is provided with a plurality of insertion grooves, and the other is provided with corresponding matching insertion pieces.

[0031] Further, the upper shell and the lower shell are connected by plug-in fit to form the sand bin main body, one of the upper shell and the lower shell is provided with a plurality of insertion grooves, and the other is provided with corresponding matching insertion pieces.

[0032] The application further discloses a pet toilet technical scheme, which comprises a sand bin and a main machine, the sand bin is arranged on the main machine and can be rotated with the main machine, and the sand bin is the pet sand bin in any one of the technical schemes.

[0033] Further, after the sand bin is arranged on the main machine, an angle range between a rotation axis of the sand bin and a horizontal plane is 10-20 degrees, and an angle range between a center line of the entrance and exit and the horizontal plane is also 10-20 degrees.

[0034] The technical scheme provided by the application has the beneficial effects that: since the sand bin comprises an upper shell, a lower shell, a front frame and a rear ring, the upper shell and the lower shell are connected by snap fit or / and plug-in fit or / and pin fit to form a sand bin main body, the front frame is detachably connected to the sand bin main body and located at the edge of the entrance and exit, and the rear ring is detachably sleeved on the sand bin main body and located at an end away from the entrance and exit, so that the scheme of dividing the large sand bin into two parts facilitates the user to clean the sand bin, the quick-release connection and fixing scheme of the two parts without disassembly tool facilitates the disassembly and assembly of the sand bin before and after cleaning, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical scheme in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0036] Fig. 1 is a structure perspective view of the pet toilet in the embodiment of the application;

[0037] Fig. 2 is a structure perspective view of the upper cover and the sand bin separated from the main machine in Fig. 1;

[0038] Fig. 3 is a structure right view of the pet toilet according to the embodiment of the present application;

[0039] Fig. 4 is a structure exploded view of the sand bin according to the embodiment of the present application;

[0040] Fig. 5 is a structure exploded view of the lower shell according to the embodiment of the present application;

[0041] Fig. 6 is a structure exploded view of the upper shell according to the embodiment of the present application;

[0042] Fig. 7 is a structure view of the sand bin according to the embodiment of the present application, which is longitudinally cut along the buckle position close to the rear ring;

[0043] Fig. 8 is a structure transverse view of the sand bin according to the embodiment of the present application;

[0044] Fig. 9 is a structure front view of the driving wheel according to the embodiment of the present application;

[0045] Fig. 10 is a structure perspective view of the first rear ring according to the embodiment of the present application;

[0046] Fig. 11 is an exploded view of the second rear ring and the sand bin body according to the embodiment of the present application;

[0047] Fig. 12 is another structure perspective view of the second rear ring according to the embodiment of the present application;

[0048] Fig. 13 is a structure perspective view of the front frame according to the embodiment of the present application;

[0049] Fig. 14 is a structure cross-sectional view of the front frame fixed on the edge of the entrance and exit according to the embodiment of the present application;

[0050] Fig. 15 is a local enlarged view of the front frame and the sand bin body cooperation part circled in Fig. 14;

[0051] Fig. 16 is a cooperation structure schematic view of the driving wheel and the rear ring according to the embodiment of the present application. DETAILED DESCRIPTION

[0052] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below in combination with the embodiments and the drawings.

[0053] In the description of the present application, unless otherwise explicitly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] The term "pet" is used herein to refer primarily to common feline or canine animals. For ease of description, spatially relative terms can be used herein for the purpose of describing one element or feature's relationship to another element or feature as illustrated in the figures. These spatially relative terms are in accordance with the following terminology: "front", "rear", "lateral", "peripheral", "top", "end", "end surface", "outer", "high", "low", "bottom", "upper", "lower", "side", "inner", "transverse", and the like. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device is turned over in the figures, the element which is described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0055] As shown in FIG. 1 and FIG. 2, a pet toilet 100 according to a preferred embodiment of the present application comprises a main body 110, a cover 120 and a litter box 130 having an entrance 131 for the pet to enter and exit, and the litter box 130 is used for the pet to play or excrete. The litter box 130 is arranged on the main body 110 and can be rotated by a transmission gear (driving member 111) on the main body 110, and the cover 120 can be placed on the main body 110 to cover the litter box 130. When the cover 120 is placed on the main body 110, the litter box 130 is covered by the cover 120 and only the entrance 131 is exposed. When the litter box 130 is arranged on the main body 110, the litter box 130 is slightly upwardly inclined as a whole, and the angle between the rotation axis of the litter box 130 and the horizontal plane is in the range of 10 degrees to 20 degrees. In this embodiment, as shown in FIG. 3, the angle between the rotation axis of the litter box 130 and the horizontal plane is 15 degrees. Since the center line of the entrance 131 and the rotation axis of the litter box 130 are substantially in the same line in this embodiment, the angle between the center line of the entrance 131 and the horizontal plane is also in the range of 10 degrees to 20 degrees. The slightly upwardly inclined design of the entrance 131 can make the pet feel safer in the litter box 130 and can prevent the pet litter from falling out of the entrance 131.

[0056] As shown in FIG. 2, FIG. 4, FIG. 5, the sand bin 130 comprises an upper shell 133, a lower shell 132, a front frame 135 and a rear ring 134, the upper shell 133 and the lower shell 132 are connected by snap fit (or / and plug fit or / and latch fit) to form the sand bin body 103. Specifically, as shown in FIG. 2, FIG. 7, one of the upper shell 133 and the lower shell 132 is provided with four hinged latches 1325, and the other is provided with corresponding matching catches 1335. After the hinged latches 1325 are buckled on the catches 1335, the upper shell 133 and the lower shell 132 are connected together to form the sand bin body 103.

[0057] As shown in FIG. 2, FIG. 4, FIG. 5, the sand bin body 103 is provided with a cavity 136 for accommodating pets and an access opening 131 communicating with the cavity 136, both of which are enclosed by the upper shell 133 and the lower shell 132. The access opening 131 is located at one end face of the sand bin body 103, and the rear ring 134 is detachably sleeved on the sand bin body 103 and located at the end away from the access opening 131, the axis of the rear ring 134 is substantially in the same straight line as the rotation axis of the sand bin 130. The rear ring 134 has a part connected to the upper shell 133 and a part connected to the lower shell 132, so as to fix the upper shell 133 and the lower shell 132 together to prevent them from separating. The front frame 135 is detachably connected to the sand bin body 103 and located at the edge position of the access opening 131, and has a part connected to the upper shell 133 and a part connected to the lower shell 132, so as to fix the upper shell 133 and the lower shell 132 together to prevent them from separating. After the snap fit between the upper shell 133 and the lower shell 132 and the combined fixation of the rear ring 134 and the front frame 135, the sand bin 130 is fixed in front, back, left and right, and the upper shell 133 and the lower shell 132 can be stably combined together to form a stable sand bin 130 as a whole. Since the fixing scheme of the upper shell 133 and the lower shell 132 is a quick-release connection and fixation scheme, it is convenient for disassembly and assembly of the sand bin 130; and since this scheme can divide the large sand bin 130 into several small modules from the middle, it is convenient for cleaning of the sand bin 130.

[0058] In other embodiments, the upper shell 133 and the lower shell 132 can also be connected by plug fit to form the sand bin body 103; one of the upper shell 133 and the lower shell 132 is provided with a plurality of insertion slots, and the other is provided with corresponding matching inserts. The upper shell 133 and the lower shell 132 can also be connected by latch fit to form the sand bin body 103; the upper shell 133 and the lower shell 132 are provided with a plurality of insertion holes corresponding to each other, and each insertion hole is provided with an insert pin in interference fit.

[0059] As shown in Fig. 5, the lower shell 132 comprises a first inner shell 1321, a fixed frame 1322 and a first outer shell 1323, the fixed frame 1322 and the first outer shell 1321 are integrated by a limiting structure (the structure of the inner recess becomes the limiting structure due to the inner recess of the buckle). The first inner shell 1321 is a flexible member, and the bottom of the first inner shell 1321 is provided with a counterweight so that the sand bin 130 can well adhere to the first outer shell 1321 when returning to the state of providing pets to excrete. The first outer shell 1323 is provided with a ventilation hole 13231, and the inner surface of the first inner shell 1321 facing the cavity 136 is provided with a smooth structure. The smooth structure can make the whole product look more beautiful, and it is easy to clean, not hurt the hand, and not easy to attach excrement. The first inner shell 1321 extends from the bottom of the cavity 136 to the middle (or above the middle) position, and in this embodiment, the first inner shell 1321 occupies half (or more than half) of the space of the cavity 136. The edge of the fixed frame 1322 is provided with a fixed groove 13221, the top end surface of the first inner shell 1321 extends to the side with a lug 13211, and the bottom of the lug 13211 is provided with a fixed strip 13212 which can be fitted into the fixed groove 13221. After the lower shell 132 is assembled, the fixed strip 13212 is located in the fixed groove 13221. After the upper shell 133 is connected with the lower shell 132, the upper shell 133 abuts and presses the upper end surface of the lug 13211, at this time, the flexible first inner shell 1321 also plays a role of sealing the connection gap between the upper shell 133 and the lower shell 132, and in addition, the fixing and blocking effects of the rear ring 134 and the front frame 135 on both ends of the sand bin body 103 make the whole sand bin 130 have no gap, which enhances the sealing and beauty of the sand bin 130.

[0060] As shown in Fig. 6, the upper shell 133 comprises a second inner shell 1331 and a second outer shell 1332, the second inner shell 1331 and the second outer shell 1332 are integrated by a limiting structure (the structure of the inner recess becomes the limiting structure due to the inner recess of the buckle), and the inner surface of the second inner shell 1331 facing the cavity 136 is provided with a smooth structure. The smooth structure can make the whole product look more beautiful, and it is easy to clean, not hurt the hand, and not easy to attach excrement. The bottom end surface of the second inner shell 1331 is provided with a structure wider than other cross sections of the second inner shell 1331, so as to press the lug 13211. The upper shell 133 is provided with an excretion port 1333, the excretion port 1333 penetrates the second inner shell 1331 and the second outer shell 1332, the second inner shell 1331 is provided with a flange 13311 at the edge position of the excretion port 1333, and a part of the flange 13311 penetrates the excretion port 1333 on the second outer shell 1332.

[0061] As shown in FIG. 6 and FIG. 7, the inner surface of the second inner shell 1331 is detachably connected with a sand filter screen 1334, which is located in the cavity 136 and separates the sand storage space 137. The sand filter screen 1334 is provided with a concave arc surface structure, which can facilitate the excrement to be discharged from the discharge port 1333 when the sand bin 130 is rotated to discharge. In other embodiments, when the upper shell 133 is not divided into the inner shell and the outer shell, the sand filter screen 1334 can be detachably connected to the inner surface of the upper shell, and the sand filter screen 1334 is located in the cavity 136 and separates the sand storage space 137.

[0062] As shown in FIG. 4 and FIG. 8, the rear ring 134 is provided with a transmission tooth 1341 to form a gear structure, which is adapted to the driving member 111 in the pet toilet 100 to rotate the sand bin 130. The driving member 111 and the transmission tooth 1341 are provided as a matching bevel gear (as shown in FIG. 9, the engagement surface 1111 of the driving member 111 is a bevel surface). Specifically, the included angle (axis angle) between the axis of the rear ring 134 and the axis of the driving member 111 ranges from 10 degrees to 20 degrees, and more preferably ranges from 12 degrees to 15 degrees. In the embodiment, the included angle between the axis of the rear ring 134 and the axis of the driving member 111 is equal to the angle between the rotation axis of the sand bin 130 and the horizontal plane. As shown in FIG. 16, the included angle between the axis of the rear ring 134 and the axis of the driving member 111 is selected to be 15 degrees. The angle between the tooth top surface of the transmission tooth 1341 and the rotation axis of the sand bin 130 ranges from 10 degrees to 20 degrees, and more preferably ranges from 12 degrees to 15 degrees. In the embodiment, the angle between the tooth top surface of the transmission tooth 1341 and the rotation axis of the sand bin 130 is selected to be 13 degrees. As shown in FIG. 8, the front frame 135 in the embodiment is a sleeve ring, which surrounds the edge of the inlet and outlet 131. The sleeve ring 135 is directly connected to the sand bin body 103 by a pin joint. Specifically, the sleeve ring 135 and the sand bin body 103 are provided with a through hole 1038, and the pin is inserted into the through hole 1038.

[0063] As shown in FIG. 4, the sand bin body 103 is provided with a folded edge 1031, which surrounds the outer surface of the upper shell 133 and the lower shell 132. The rear ring 134 is fixedly sleeved on the folded edge 1031, and the rear ring 134 and the folded edge 1031 are connected by a pin joint. In other embodiments, the rear ring 134 and the folded edge 1031 can also be connected by a concave positioning point and a convex positioning point joint or / and an elastic buckle joint. The specific connection methods can be referred to the description in the foregoing embodiments.

[0064] As shown in Fig. 10, the edge 1031 is provided with at least two protrusions 1032, and the rear ring 134 is provided with concave teeth 1342 corresponding to the protrusions 1032. The concave teeth 1342 are located on the inner surface of the transmission teeth 1341 in the rear ring 134. The protrusions 1032 and the concave teeth 1342 can make the torque transmission of the rear ring 134 more reliable.

[0065] As shown in Fig. 11 and Fig. 12, another fixing connection scheme between the rear ring 134 and the sand bin body 103 is shown. The sand bin body 103 is further provided with a permanent magnet 138, which is used to cooperate with a dry reed or a Hall switch (not shown) in the pet toilet 100 to form a Hall switch. The permanent magnet 138 is located on the end face of one end of the rear ring 134. The sand bin body 103 is provided with a U-shaped clamping groove 1033 which can accommodate a part of the rear ring 134. The side wall of the clamping groove 1033 is uniformly provided with eight notches 1034, and the rear ring 134 is correspondingly provided with eight protrusions 1344 which are matched with the notches 1034. The notches 1034 and the protrusions 1344 can make the torque transmission of the rear ring 134 more reliable.

[0066] As shown in Fig. 11 and Fig. 12, the rear ring 134 is composed of two segments, and the two segments are connected by a hinge structure to make the two segments of the rear ring 134 open at a predetermined angle. The two free ends of the rear ring 134 are provided with connecting holes 1345. The rear ring 134 further includes a plug bridge 1343 which has two plug columns 13431 matched with the two connecting holes 1345. The sand bin body 103 is provided with a fixing structure 1036 which can cooperate with the plug bridge 1343 to limit the relative movement of the plug bridge 1343 after the two plug columns 13431 enter the connecting holes 1345. The U-shaped clamping groove 1033 is provided with two plug holes 10331 matched with the two plug columns 13431. When the rear ring 134 is fixed on the sand bin 130, the two segments of the rear ring 134 are first opened to make the rear ring 134 clamped into the U-shaped clamping groove 1033 through the side wall of the U-shaped clamping groove 1033. Then the two plug columns 13431 in the plug bridge 1343 pass through the two plug holes 10331 and the two connecting holes 1345, so that the rear ring 134 is fixed in the U-shaped clamping groove 1033 in a circular ring shape.

[0067] In another embodiment, as shown in FIG. 13, FIG. 14, and FIG. 15, the front frame 135 is a ring which is wrapped around the edge of the entrance 131, and the ring 135 is fixedly connected to the sand bin body 103 by a concave-convex positioning scheme. Specifically, the ring 135 is provided with a plurality of elastic buckles 1351, each of which is provided with a convex positioning point 1352, and the sand bin body 103 is correspondingly provided with a plurality of concave positioning points 1035 on the edge of the entrance 131. In other embodiments, the ring 135 and the sand bin body 103 can also be fixedly connected by an elastic buckle scheme.

[0068] In other embodiments, the front frame 135 can also be composed of two arc rings which are symmetrically wrapped around the edge of the entrance 131, and each of the two arc rings is connected to the upper shell 133 and the lower shell 132. The connection scheme of the arc rings to the upper shell 133 and the lower shell 132 can refer to the setting scheme of the latch bridge 1343.

[0069] In other embodiments, the transmission gear 1341 can also be directly provided on the outer surface of the sand bin body 103, so as to be matched with the driving member 111 in the pet toilet 100 to rotate the sand bin 130.

[0070] The above application of specific examples has described the principles and embodiments of the present application, and it should be understood that the above embodiments are only used to help understand the present application, and should not be understood as a limitation of the present application. For those skilled in the art, any minor improvement or equivalent replacement of the structure or configuration of the present application according to the idea of the present application should be included in the protection scope of the present application.

Claims

1. A litter box for a pet, which is provided in a pet toilet for the pet to move around or excrete, characterized in that: The sand bin comprises an upper shell, a lower shell, a front frame and a rear ring, the upper shell and the lower shell are connected by a snap fit or / and a plug-in fit or / and a latch fit to form a sand bin body, the sand bin body is provided with a cavity for accommodating a pet and an access opening communicating with the cavity, the cavity and the access opening are enclosed by the upper shell and the lower shell, the access opening is located at one end surface of the sand bin body, the rear ring is detachably sleeved on the sand bin body and located at one end away from the access opening to prevent the upper shell and the lower shell from separating; the front frame is detachably connected on the sand bin body and located at the edge of the access opening, the front frame has a part connected to the upper shell and a part connected to the lower shell.

2. The pet litter box according to claim 1, wherein: The front frame is a sleeve ring, the front frame surrounds the edge of the access opening; the sleeve ring and the sand bin body are fixedly connected by a concave positioning point and a convex positioning point joint fit scheme, or / and a fixed connection scheme of an elastic buckle, or / and a fixed connection scheme of a latch fit.

3. The pet litter box of claim 1, wherein: The front frame comprises at least two arc sleeves, at least two arc sleeves are sleeved on the edge of the access opening; at least two arc sleeves have a part connected to the upper shell and a part connected to the lower shell; two arc sleeves are symmetrically sleeved on the edge of the access opening.

4. The pet litter box of claim 1, wherein: The rear ring is provided with a transmission tooth to form a gear structure, the transmission tooth is used to adapt to a driving member in the pet toilet to rotate the sand bin, the transmission tooth is provided as a bevel gear; the angle between the axis of the rear ring and the axis of the driving member is in the range of 10 degrees-20 degrees.

5. A litter box for a pet according to claim 4, characterised in that: The sand bin body is provided with a folded edge, the rear ring is sleeved on the folded edge, and the rear ring and the folded edge are fixedly connected by a concave positioning point and a convex positioning point joint fit scheme, or / and an elastic buckle fit scheme, or / and a latch fit scheme.

6. A litter box for a pet according to claim 5, characterised in that: The folded edge is provided with at least two convex teeth, and the rear ring is correspondingly provided with concave teeth matched with the convex teeth on the inner surface of the transmission tooth in the rear ring.

7. The pet litter box of claim 1, wherein: The outer surface of the sand bin body is provided with a transmission tooth matched with the driving member in the pet toilet to rotate the sand bin.

8. The pet litter box of claim 1, wherein: The rear ring is composed of multiple segments, each segment is movably connected by a hinge structure at one end, and the two free ends of the unconnected first and last segments are respectively provided with connecting holes, the rear ring comprises a latch bridge, and the first and last free ends are fixed by plug-in fitting the two connecting holes through the latch bridge.

9. A litter box for a pet according to claim 8, characterised in that: The sand bin body is provided with a clamping groove for accommodating at least a part of the rear ring, the side wall of the clamping groove is provided with a notch, and the rear ring is correspondingly provided with a protrusion matched with the notch; or the sand bin body is provided with a clamping groove for accommodating at least a part of the rear ring, the clamping groove is provided with two plug-in holes, and the latch bridge is first inserted through the two plug-in holes and then inserted into the two connecting holes.

10. The pet litter box of claim 1, wherein: The lower shell comprises a first inner shell, a fixing frame and a first outer shell, the fixing frame and the first outer shell are integrated by limiting structure sleeve connection, the inner surface of the first inner shell towards the cavity is provided with a smooth structure, the edge of the fixing frame is provided with a fixing groove, the first inner shell is provided with a fixing strip which can be fitted into the fixing groove, the fixing strip is located in the fixing groove, after the upper shell is connected with the lower shell, the upper shell abuts against the first inner shell.

11. The pet litter box according to claim 10, wherein: The first inner shell is a flexible member, and the first outer shell is provided with air holes; the first inner shell extends from the bottom of the cavity to the middle or above the middle position.

12. The pet litter box of claim 11, wherein: The top end surface of the first inner shell extends to the side with a lug, the fixing strip is arranged at the bottom of the lug, and after the upper shell is connected with the lower shell, the upper shell abuts against the lug.

13. The pet litter box of claim 1, wherein: The upper shell comprises a second inner shell and a second outer shell, the second inner shell and the second outer shell are integrated by sleeve connection, and the inner surface of the second inner shell towards the cavity is provided with a smooth structure; the upper shell is provided with a discharge port, the discharge port penetrates the second inner shell and the second outer shell, the edge of the discharge port of the second inner shell is provided with a flange, and the flange penetrates the discharge port on the second outer shell.

14. The pet litter box of claim 13, wherein: The inner surface of the second inner shell is detachably connected with a sand filter screen, the sand filter screen is located in the cavity and separates a sand storage space; the sand filter screen is provided with an inner concave arc surface structure.

15. The pet litter box according to any one of claims 1 to 12, characterized in that: The upper shell is also provided with a sand filter screen, the sand filter screen is located in the cavity and separates a sand storage space, and the sand filter screen is detachably connected with the upper shell; the sand filter screen is provided with an inner concave arc surface structure; the sand bin body is also provided with a permanent magnet, the permanent magnet is used for cooperating with triggering a reed switch or a Hall switch in the pet toilet, and the permanent magnet is located at one end of the rear ring.

16. The pet litter box according to any one of claims 1 to 14, wherein: The upper shell and the lower shell are connected by snap fit to form a sand bin body, one of the upper shell and the lower shell is provided with a plurality of hinged locks, and the other is correspondingly matched with a clamping position.

17. The pet litter box according to any one of claims 1 to 14, wherein: The upper shell and the lower shell are connected by plug-in fit to form a sand bin body, one of the upper shell and the lower shell is provided with a plurality of insertion grooves, and the other is correspondingly matched with an insertion piece.

18. The pet litter box according to any one of claims 1 to 14, characterized in that: The upper shell and the lower shell are connected by plug-in fit to form a sand bin body, one of the upper shell and the lower shell is provided with a plurality of insertion grooves, and the other is correspondingly matched with an insertion piece.

19. A litter box for pets comprising a litter bin and a main body, said litter bin being provided on said main body and being able to be rotated with said main body, characterized in that: The sand bin is the pet sand bin of any one of claims 1-18.

20. The pet litter box of claim 19, wherein: After the sand bin is arranged on the main machine, the angle range between the rotation axis of the sand bin and the horizontal plane is 10-20 degrees, and the angle range between the center line of the inlet and outlet and the horizontal plane is also 10-20 degrees.

Images