A drum mechanism and a litter box robot

Abstract

The present application provides a kind of drum mechanism and cat litter basin robot, it is related to pet product field.Drum mechanism includes: drum body;Door assembly, with the drum body is movably connected, the door assembly is provided with compression part;And excrement collection bin, it is set in the drum body, the excrement collection bin is provided with annular opening portion;Wherein, the compression part is at least part of the opening portion is fitted when the door assembly is closed.In the above drum mechanism, when door assembly is closed, compression part is fitted with at least part of the opening portion.At this time, compression part and opening portion are mutually limited support, compression part can limit the deformation of opening portion, opening portion can also limit the deformation of compression part, to improve the sand leakage phenomenon caused by door assembly and excrement collection bin deformation.In addition, when any one of compression part and opening portion is deformed, the other is deformed, both can still better maintain sealing fit, also can improve the sand leakage phenomenon.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pet products, in particular to a drum mechanism and a cat litter basin robot. BACKGROUND

[0002] At present, there are various automatic cat litter basin related products on the market. Some products set a feces collection bin inside the drum and set an openable hatch on the drum. The user can take out the feces collection bin after opening the hatch.

[0003] However, such products often have cat litter leaking out of the hatch during the rotation of the drum, resulting in cat litter scattered on the ground around the product. This not only affects the use effect, but also requires frequent cleaning, increasing the workload of the user. SUMMARY

[0004] In order to solve the problem of sand leakage existing in the current automatic cat litter basin, one of the purposes of the present application is to provide a drum mechanism.

[0005] The present application provides the following technical solutions:

[0006] A drum mechanism, comprising:

[0007] a drum body;

[0008] a hatch assembly movably connected with the drum body, the hatch assembly being provided with a pressing portion; and

[0009] a feces collection bin arranged in the drum body, the feces collection bin being provided with an annular opening portion;

[0010] wherein the pressing portion is embedded with at least part of the opening portion when the hatch assembly is closed.

[0011] As a further optional solution to the drum mechanism, a concave surface is provided on the pressing portion, and a convex surface is provided on the opening portion, the concave surface and the convex surface being fitted when the hatch assembly is closed.

[0012] As a further optional solution to the drum mechanism, the cross sections of the concave surface and the convex surface are both arranged in an arc shape.

[0013] As a further optional solution to the drum mechanism, the cross sections of the concave surface and the convex surface are both arranged in a wedge shape.

[0014] As a further optional solution to the drum mechanism, the hatch assembly comprises a hatch body and a hatch support, the hatch support being fixedly connected with the hatch body, the hatch support being located on the side of the hatch body facing the inside of the drum body, and the hatch support being provided with the pressing portion.

[0015] As a further optional solution to the drum mechanism, a first reinforcing rib is arranged on the hatch bracket.

[0016] As a further optional solution to the drum mechanism, a second reinforcing rib is arranged on the excrement collecting bin.

[0017] As a further optional solution to the drum mechanism, the opening portion includes a first side edge, a second side edge and a third side edge, the first side edge is located at a side of the opening portion away from the hatch assembly, the second side edge is located at a side of the opening portion close to the hatch assembly, and the third side edge is arranged in pairs and connects the first side edge and the second side edge.

[0018] The pressing portion is fitted with the second side edge of the opening portion when the hatch assembly is closed.

[0019] As a further optional solution to the drum mechanism, the pressing portion is also fitted with the third side edge of the opening portion when the hatch assembly is closed.

[0020] Another object of the present application is to provide a litter box robot.

[0021] The present application provides the following technical solutions:

[0022] A litter box robot includes the above drum mechanism.

[0023] Embodiments of the present application have the following beneficial effects:

[0024] In the above drum mechanism, the hatch assembly is provided with a pressing portion, and the excrement collecting bin is provided with an opening portion. When the hatch assembly is closed, the pressing portion is fitted with at least part of the opening portion. At this time, the pressing portion and the opening portion are mutually limited and supported, the pressing portion can limit the deformation of the opening portion, and the opening portion can also limit the deformation of the pressing portion, thereby improving the sand leakage phenomenon caused by the deformation of the hatch assembly and the excrement collecting bin. In addition, when any one of the pressing portion and the opening portion deforms, the other deforms accordingly, and both can still be well sealed and fitted, and the sand leakage phenomenon can also be improved.

[0025] In order to make the above objects, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. Other related drawings can also be obtained by those skilled in the art without creative labor.

[0027] Figure 1 Fig. 1 shows a schematic diagram of the overall structure of a roller mechanism according to an embodiment of the present application;

[0028] Figure 2 Fig. 2 shows a schematic diagram of the structure of a roller mechanism according to an embodiment of the present application when the cabin door assembly is in an open state;

[0029] Figure 3 Fig. 3 shows a schematic diagram of the internal structure of a roller mechanism according to an embodiment of the present application when the cabin door assembly is in a closed state;

[0030] Figure 4 Fig. 4 shows a schematic diagram of the cooperation between the pressing portion and the opening portion in a roller mechanism according to an embodiment of the present application.

[0031] Main component symbol explanation:

[0032] 100 - roller body; 110 - limiting portion; 120 - gear ring; 200 - cabin door assembly; 210 - cabin door body; 220 - cabin door support; 221 - pressing portion; 222 - concave surface; 223 - first reinforcing rib; 300 - excrement collection chamber; 310 - opening portion; 311 - first side edge; 312 - second side edge; 313 - third side edge; 314 - convex surface; 320 - second reinforcing rib. DETAILED DESCRIPTION

[0033] Embodiments of the present application are described in detail below with reference to the attached drawings, which show by way of example, embodiments in which like numerals indicate like elements or components, and in which:

[0034] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. Like numerals refer to like elements throughout. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0035] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connecting", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. 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.

[0036] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically defined.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the specification of the template herein are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] Embodiment

[0039] Please refer to Figure 1 and Figure 2 The embodiment provides a roller mechanism applied to a litter box robot. The roller mechanism comprises a roller body 100, a hatch assembly 200 and a waste collection bin 300, and the hatch assembly 200 and the waste collection bin 300 are both mounted on the roller body 100.

[0040] Specifically, the roller body 100 is in a cylindrical shape and rotates around its own axis during use.

[0041] The hatch assembly 200 is arranged on the side wall of the roller body 100 and movably connected with the roller body 100, and the hatch assembly 200 is provided with a pressing portion 221.

[0042] The waste collection bin 300 is embedded in the roller body 100 and used for collecting cat excrement. In addition, the waste collection bin 300 is provided with an annular opening portion 310. When the roller body 100 rotates, the cat excrement enters the waste collection bin 300 from the opening portion 310.

[0043] In use, the user can open the hatch assembly 200 regularly to take out the waste collection bin 300, so as to concentrate and clean the cat excrement.

[0044] Please refer to Figure 3 In contrast, when the hatch assembly 200 is closed, the pressing portion 221 of the hatch assembly 200 is fitted with at least part of the opening portion 310 of the litter bin 300. At this time, the pressing portion 221 and the opening portion 310 are supported by each other, the pressing portion 221 can limit the deformation of the opening portion 310, and the opening portion 310 can also limit the deformation of the pressing portion 221, thereby improving the sand leakage phenomenon caused by the deformation of the hatch assembly 200 and the litter bin 300. In addition, when any one of the pressing portion 221 and the opening portion 310 deforms, the other deforms accordingly, and both can still be well sealed and fitted, and the sand leakage phenomenon can also be improved.

[0045] In contrast, the hatch and the litter bin 300 in the existing automatic cat litter box are often in plane contact and pressing. When the hatch and / or the litter bin 300 are deformed, a gap will be generated between the hatch and the litter bin 300. During the rotation of the roller mechanism, cat litter will leak out of the gap, which is inconvenient for users.

[0046] Specifically, the opening portion 310 is square-shaped, including a first side edge 311, a second side edge 312, and a pair of third side edges 313.

[0047] The first side edge 311 is located on the side of the opening portion 310 away from the hatch assembly 200. The second side edge 312 is opposite to the first side edge 311 and is located on the side of the opening portion 310 close to the hatch assembly 200. One of the third side edges 313 connects one end of the first side edge 311 and one end of the second side edge 312, and the other third side edge 313 connects the other end of the first side edge 311 and the other end of the second side edge 312.

[0048] In the embodiment, when the hatch assembly 200 is closed, the pressing portion 221 is fitted with the second side edge 312 and the third side edge 313 of the opening portion 310.

[0049] In another embodiment of the present application, when the hatch assembly 200 is closed, the pressing portion 221 can be fitted with only the second side edge 312 of the opening portion 310.

[0050] Please refer to Figure 4 In some specific embodiments of the embodiment, a concave surface 222 is arranged on the pressing portion 221, and a convex surface 314 is arranged on the opening portion 310 correspondingly. When the hatch assembly 200 is closed, the second side edge 312 and the third side edge 313 of the opening portion 310 are fitted in the pressing portion 221, and the convex surface 314 on the opening portion 310 is fitted with the concave surface 222 on the pressing portion 221.

[0051] In some embodiments of the present application, the recess 222 is arranged on the opening part 310, and the convex 314 is arranged on the pressing part 221. When the hatch assembly 200 is closed, the pressing part 221 is fitted into the second side 312 and the third side 313 of the opening part 310.

[0052] In some embodiments of the present application, the cross section of the recess 222 and the convex 314 is arranged in an arc shape, i.e. the recess 222 and the convex 314 are both circular arc surfaces.

[0053] When the hatch assembly 200 is closed, the pressing part 221 and the opening part 310 can be better fitted together, maintaining a sealed fit, and the contact area is larger than that of a flat contact, which can better improve the sand leakage phenomenon.

[0054] In some embodiments of the present application, the cross section of the recess 222 and the convex 314 can also be arranged in a wedge shape, i.e. the recess 222 and the convex 314 both have relatively inclined side walls.

[0055] Please refer again to Figure 1 , further, in the present application, the hatch assembly 200 is composed of a hatch body 210 and a hatch bracket 220.

[0056] Wherein, the hatch body 210 is hinged along one side of the drum body 100, and the other side of the hatch body 210 is detachably connected to the drum body 100 through a lock structure.

[0057] The user can open the hatch body 210 after unlocking, and lock the hatch body 210 after closing the hatch body 210, to prevent the hatch body 210 from opening during the rotation of the drum body 100.

[0058] The hatch bracket 220 is fixedly connected with the hatch body 210, and is located on the side of the hatch body 210 facing the inside of the drum body 100. In addition, the pressing part 221 is arranged on the hatch bracket 220.

[0059] In the production process, the hatch body 210 and the hatch bracket 220 are designed and processed separately, and then assembled together, so that the structural strength of the hatch assembly 200 is greatly increased, which can effectively improve the deformation of the hatch assembly 200, thereby improving the sand leakage phenomenon.

[0060] In contrast, the hatch in the existing automatic cat litter box is a single part, which has relatively obvious deformation during use.

[0061] Please refer again to Figure 2Further, the inner wall of the cabin door support 220 is provided with a plurality of first reinforcing ribs 223. The first reinforcing ribs 223 are arranged along the circumferential direction of the drum body 100, and the plurality of first reinforcing ribs 223 are arranged along the axis direction of the drum body 100.

[0062] In use, the first reinforcing ribs 223 can further improve the structural strength of the cabin door support 220, so that the cabin door support 220 is not easily deformed, and the sealing and fitting of the pressing part 221 on the cabin door support 220 and the opening part 310 on the waste collecting bin 300 are facilitated.

[0063] Similarly, the outer wall of the waste collecting bin 300 is provided with a plurality of second reinforcing ribs 320. The second reinforcing ribs 320 are arranged along the circumferential direction of the drum body 100, and the plurality of second reinforcing ribs 320 are arranged along the axis direction of the drum body 100.

[0064] In use, the second reinforcing ribs 320 can improve the structural strength of the waste collecting bin 300, so that the waste collecting bin 300 is not easily deformed, and the sealing and fitting of the opening part 310 on the waste collecting bin 300 and the pressing part 221 on the cabin door support 220 are facilitated.

[0065] In the above-mentioned drum mechanism, when the cabin door body 210 is closed, the pressing part 221 on the cabin door support 220 is fitted with the opening part 310 on the waste collecting bin 300. At this time, the pressing part 221 and the opening part 310 are limited and supported by each other, the pressing part 221 can limit the deformation of the opening part 310, and the opening part 310 can also limit the deformation of the pressing part 221, thereby improving the sand leakage phenomenon caused by the deformation of the cabin door assembly 200 and the waste collecting bin 300. In addition, when any one of the pressing part 221 and the opening part 310 is deformed, the other is deformed accordingly, and the two can still be well sealed and fitted, and the sand leakage phenomenon can also be improved.

[0066] On this basis, the cabin door assembly 200 is designed separately as the cabin door body 210 and the cabin door support 220, and the first reinforcing ribs 223 are arranged on the cabin door support 220, and the second reinforcing ribs 320 are arranged on the waste collecting bin 300, which can improve the structural strength of the cabin door assembly 200 and the waste collecting bin 300, improve the deformation of the cabin door assembly 200 and the waste collecting bin 300, and also reduce the possibility of sand leakage.

[0067] In summary, the above-mentioned drum mechanism solves the problem that cat litter leaks out of the cabin door assembly 200 when the drum body 100 rotates, so that the user does not have to spend time and effort to clean the cat litter leaked to the ground during use.

[0068] The embodiment also provides a cat litter box robot, which comprises a base, a driving motor and the above-mentioned roller mechanism. The roller body 100 in the roller mechanism is arranged on the base to rotate around its own axis. The shaft of the driving motor is connected with the roller body 100 to drive the rotation of the roller body 100.

[0069] Specifically, the base is provided with a mounting groove for supporting the roller body 100, and a plurality of rollers are arranged on the groove bottom to rotate to form rotation support for the roller body 100 and to reduce the frictional resistance suffered by the roller body 100 during rotation.

[0070] Please refer to Figure 2 and Figure 3 Meanwhile, the roller body 100 is provided with a limiting part 110 at one end along its own axis direction. The limiting part 110 is in a cylindrical shape as a whole, has a neck part at the end close to the roller body 100, and the axis of the limiting part 110 coincides with the axis of the roller body 100.

[0071] Correspondingly, the base is provided with a limiting sleeve covering the limiting part 110. The limiting sleeve is clamped with the neck part of the limiting part 110 and the limiting part 110, so as to limit the movement of the roller body 100 along the horizontal direction through the limiting part 110.

[0072] In addition, the roller body 100 is also provided with a gear ring 120 at one end along its own axis direction. The gear ring 120 is fixed by being bolted or welded with the roller body 100, and the axis of the gear ring 120 also coincides with the axis of the roller body 100.

[0073] Correspondingly, the shaft of the driving motor is sleeved with a gear. The gear is key-connected with the shaft of the driving motor and engaged with the gear ring 120.

[0074] In use, the driving motor directly drives the rotation of the gear, and then drives the rotation of the roller body 100 through the gear ring 120.

[0075] Since the gear and the gear ring 120 have a large reduction ratio, the driving motor can output sufficient torque to ensure the driving of the roller body 100. In addition, the rotation speed of the roller body 100 is reduced, which is easier to control.

[0076] In the embodiment, the limiting part 110 and the gear ring 120 are located at the same end of the roller body 100 and on the back surface of the roller body 100, so that the structure of the cat litter box robot is more compact and beautiful.

[0077] When the cat litter box robot is used, the drum mechanism rotates under the drive of the motor and other driving structures, so that the cat excrement falls into the excrement collecting bin 300. The user can open the hatch assembly 200 after a certain amount of excrement is collected in the excrement collecting bin 300, and then take out the excrement collecting bin 300 to dump and dispose of the cat excrement.

[0078] In all examples shown and described herein, any specific values should be interpreted as merely exemplary and not limiting, and thus other examples of the example embodiments can have different values.

[0079] It should be noted that like reference numerals and letters refer to like items in the several views of the drawings, and as a result, once an item is defined in one view, it need not be further defined and explained in subsequent views.

[0080] The above-described embodiments are merely illustrative of several embodiments of the present application, and the description is relatively specific and detailed, but should not be understood as limiting the scope of the present application. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the scope of the present application.

Claims

1. A roller mechanism, characterized in that, include: Roller body; A hatch assembly is movably connected to the roller body, and the hatch assembly is provided with a pressing part; and A waste collection chamber is disposed within the roller body. The waste collection chamber has an annular opening. The opening includes a first side, a second side, and a third side. The first side is located on the side of the opening away from the door assembly. The second side is located on the side of the opening close to the door assembly. The third side is arranged in pairs and connects the first side and the second side. Wherein, the pressing part engages with the second side of the opening when the hatch assembly is closed, and the pressing part also engages with the third side of the opening when the hatch assembly is closed; The hatch assembly includes a hatch body and a hatch bracket. The hatch bracket is fixedly connected to the hatch body. The hatch bracket is located on the side of the hatch body facing the inside of the roller body. The hatch bracket is provided with the pressing part. The inner wall of the door support is provided with a plurality of first reinforcing ribs, which are arranged along the circumference of the roller body and along the axial direction of the roller body. The outer wall of the collection chamber is provided with a plurality of second reinforcing ribs, which are arranged along the circumference of the roller body and along the axial direction of the roller body.

2. The roller mechanism according to claim 1, characterized in that, The pressing part has a concave surface, and the opening part has a convex surface. The concave surface and the convex surface fit together when the door assembly is closed.

3. The roller mechanism according to claim 2, characterized in that, Both the concave and convex surfaces have arc-shaped cross-sections.

4. The roller mechanism according to claim 2, characterized in that, Both the concave and convex surfaces have wedge-shaped cross-sections.

5. A litter box robot, characterized in that, Includes the roller mechanism according to any one of claims 1-4.

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