Cat litter cleaning device

Abstract

The utility model relates to a cat litter cleaning device which comprises a litter storage part, a first litter cleaning part, a first driving mechanism, a second litter cleaning part and a second driving mechanism. A sand cavity is formed in the sand storage part, the first sand cleaning part extends into the sand cavity and can move in the length direction of the sand storage part, the first driving mechanism is in driving connection with the first sand cleaning part, and the second sand cleaning part is rotatably arranged and has a first state of rotating to extend into the sand cavity and a second state of rotating to be higher than the sand cavity; the second driving mechanism is in driving connection with the second sand cleaning piece and used for driving the second sand cleaning piece to rotate. When the second sand cleaning piece is in the first state, the second sand cleaning piece extends into the sand cavity, and the first sand cleaning piece can be close to or away from the second sand cleaning piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to pet supplies field especially, and it is a cat litter cleaning device. BACKGROUND

[0002] Cat litter basin is a device for storing cat litter, mainly used for cat excretion. The urine and solid excrement excreted by the cat will be clotted in the cat litter basin. In order to avoid the peculiar smell, timely treatment is needed, so the automatic cat litter basin with self-cleaning function appears.

[0003] However, the existing automatic cat litter basin generally only has a single rake structure, and the excrement is cleaned by driving the rake to reciprocate or move in multiple directions. However, the existing automatic cat litter basin is not reliable enough for cat litter cleaning, and often cannot clean thoroughly. SUMMARY

[0004] Therefore, the utility model provides a cat litter cleaning device to solve the problem of unreliable cat litter cleaning of the cat litter basin in the prior art.

[0005] To achieve one or part or all of the above purposes or other purposes, the utility model provides:

[0006] A cat litter cleaning device comprises:

[0007] A sand storage part is provided with a sand cavity.

[0008] A first sand cleaning part comprises a plurality of first cleaning teeth arranged at intervals, and the first cleaning teeth extend into the sand cavity.

[0009] A first driving mechanism is drivingly connected with the first sand cleaning part and used for driving the first sand cleaning part to move.

[0010] A second sand cleaning part is rotatably arranged and comprises a plurality of second cleaning teeth arranged at intervals, and has a first state in which the second cleaning teeth extend into the sand cavity and a second state in which the second cleaning teeth are rotated to be higher than the sand cavity.

[0011] A second driving mechanism is drivingly connected with the second sand cleaning part and used for driving the second sand cleaning part to rotate.

[0012] When the second sand cleaning part is in the first state, the first sand cleaning part can be close to or away from the second sand cleaning part.

[0013] Preferably, the sand cavity has a first end and a second end; when the second sand cleaning part is in the first state, the second sand cleaning part extends into the second end.

[0014] The first driving mechanism is used for driving the first cleaning teeth to translate from the first end to the second end or driving the first cleaning teeth to translate from the second end to the first end.

[0015] Preferably, when the second sand cleaning part is in the first state and the first cleaning teeth move to the second end, the plurality of first cleaning teeth and the plurality of second cleaning teeth are arranged in an interlaced manner.

[0016] Preferably, the first sand cleaning part comprises a first connecting part, the plurality of first cleaning teeth are distributed on the first connecting part, the first connecting part is connected with the first driving mechanism, the plurality of first cleaning teeth comprise a flat pushing part and a hook part, the flat pushing part is connected to the first connecting part, the flat pushing part extends downward and connects the hook part, the hook part has an included angle with the flat pushing part and extends transversely to the second end.

[0017] Preferably, the second sand cleaning part further comprises a second connecting part, the plurality of second cleaning teeth are distributed on the second connecting part, the second connecting part is connected with the second driving mechanism, the plurality of second cleaning teeth each comprise a guide part, a receiving part and a blocking part, the guide part is connected to the second connecting part;

[0018] When the second sand cleaning part is in the first state, the guide part extends downward and connects the receiving part, the receiving part has an included angle with the guide part, the receiving part extends transversely to the first end and connects the blocking part, the blocking part has an included angle with the receiving part and extends upward.

[0019] Preferably, the second connecting part comprises a deviation part and a sand blocking part, the deviation part is connected with the second driving mechanism, the sand blocking part is arranged in a plate shape and connected with the deviation part, so that the sand blocking part is arranged away from the rotation axis of the second sand cleaning part, and the second cleaning teeth are arranged on the side of the sand blocking part away from the deviation part.

[0020] Preferably, the first driving mechanism comprises a driving rod, a pushing block and a first driving part, the driving rod is arranged along the length direction of the sand storage part and beside the sand storage part, the first sand cleaning part is installed on the pushing block, and the first driving part is used to drive the pushing block to move along the driving rod.

[0021] Preferably, the driving rod has a thread, the driving rod penetrates the pushing block and is threadedly connected with the pushing block, and the first driving part is drivingly connected with the driving rod.

[0022] Preferably, the first driving mechanism further comprises a guide rod, the guide rod is arranged in parallel with the driving rod, and the guide rod and the driving rod are arranged on opposite sides of the sand storage part; the pushing block has two, the two pushing blocks are connected with the driving rod and the guide rod respectively, and the first sand cleaning part is installed on the two pushing blocks simultaneously.

[0023] Preferably, the second driving mechanism comprises a rotating part and a second driving part, the rotating part is arranged in rotation beside the sand storage part, the second sand cleaning part is connected to the rotating part, and the second driving part is used to drive the rotating part to rotate so as to drive the second sand cleaning part to enter the first state or the second state.

[0024] Preferably, the cat litter cleaning device further comprises a garbage storage member, which is arranged beside the sand storage member and close to the second end, and is provided with a garbage cavity therein, and an opening is formed in the top of the garbage storage member to communicate with the garbage cavity.

[0025] When the second sand cleaning member is in the second state, the second cleaning tooth rotates to be higher than the opening and is inclined to the opening.

[0026] Preferably, the cat litter cleaning device further comprises a bucket cover and a third driving mechanism, the bucket cover is rotatably arranged above the garbage storage member and can cover the opening, and the third driving mechanism is used to drive the bucket cover to open the opening away from the second end.

[0027] Preferably, the third driving mechanism comprises a top member and a third driving member, the top member is rotatably arranged beside the garbage storage member, and the third driving member is drivingly connected with the top member to drive the top member to rotate and lift the bucket cover.

[0028] Preferably, the bucket cover comprises a front end and a rear end, the rear end is rotatably arranged on the side of the garbage storage member away from the second end, and the front end can swing about the rear end; a baffle is arranged on the front end, and the baffle extends into the sand cavity when the bucket cover covers the opening.

[0029] Preferably, the cat litter cleaning device further comprises a first, a second, a third and a fourth position reaching switch, the first position reaching switch is arranged corresponding to the position of the first end, the second position reaching switch is arranged corresponding to the position of the second end, and the first sand cleaning member can trigger the first or the second position reaching switch respectively; the third position reaching switch is arranged corresponding to the position of the second sand cleaning member, and the second sand cleaning member can rotate to trigger the second position reaching switch; and the fourth position reaching switch is arranged corresponding to the position of the top member, and the top member can rotate to trigger the fourth position reaching switch.

[0030] Preferably, the cat litter cleaning device further comprises a shell, and the sand storage member, the first sand cleaning member, the first driving mechanism, the second sand cleaning member and the second driving mechanism are all arranged in the shell.

[0031] The embodiment of the present application has the following beneficial effects:

[0032] After the above cat litter cleaning device is adopted, the fecal pieces in the sand cavity can be concentrated in one place by the first sand cleaning member, and the first sand cleaning member also performs a flattening operation on the cat litter in the sand cavity. Then, the second sand cleaning member takes out the accumulated fecal pieces from the sand cavity. The cat litter cleaning device performs double screening, which can improve the reliability of cat litter cleaning and make the filtration of cat litter more sufficient, thereby saving the consumption of cat litter. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0034] Figure 1 It is a schematic diagram of the overall structure of one embodiment.

[0035] Figure 2 It is a schematic diagram of the overall structure of another embodiment.

[0036] Figure 3 It is a schematic diagram of the vertical section structure of one embodiment, wherein the first sand cleaning part is located at the first end and the second sand cleaning part is located at the second end.

[0037] Figure 4 It is a schematic diagram of the overall structure of another embodiment.

[0038] Figure 5 It is a schematic diagram of the structural relationship of the first sand cleaning part, the second sand cleaning part, the first driving mechanism and the second driving mechanism in one embodiment. Figure 1

[0039] Figure 6 It is a schematic diagram of the structural relationship of the first sand cleaning part, the second sand cleaning part, the first driving mechanism and the second driving mechanism in one embodiment. Figure 2 , wherein the first cleaning tooth and the second cleaning tooth are shown to be staggered with each other.

[0040] Figure 7 It is a schematic diagram of the second sand cleaning part in the second state in one embodiment.

[0041] Figure 8 It is a schematic diagram of the partial structure of one embodiment. Figure 1 , wherein the positions of the first and second position switches are shown.

[0042] Figure 9 It is an enlarged view of A in Figure 8 , wherein the positions of the touch boss and the third position switch are output.

[0043] Figure 10 It is a schematic diagram of the partial structure of one embodiment. Figure 2 , wherein the position of the fourth position switch is shown.

[0044] Figure 11 It is a schematic diagram of the vertical section structure of one embodiment, wherein the positions of the sand storage part and the first driving mechanism are shown.

[0045] ​Figure 12 For Figure 11 Enlarged view at B in the middle;

[0046] Wherein:

[0047] Housing 1, connecting frame 11, guide boss 12, first arrival switch 101, second arrival switch 102, third arrival switch 103, fourth arrival switch 104;

[0048] Sand storage 2, sand cavity 20, first end 201, second end 202;

[0049] Garbage storage 3, garbage cavity 30, funnel-like device 31, opening 301, side 302 of the garbage storage away from the second end;

[0050] First sand cleaning 4, first connecting part 41, first sand cleaning part 42, side end 411 of the first connecting part, first cleaning tooth 421, flat pushing part 4211, hook part 4212;

[0051] First driving mechanism 5, driving rod 51, pushing block 52, first driving part 53, guide rod 54, first embedding slot 521, guide slot 522;

[0052] Second sand cleaning 6, rotating axis 60, perpendicular line 601, second connecting part 61, second sand cleaning part 62, side end 611 of the second connecting part, offset part 612, sand blocking part 613, second cleaning tooth 621, guide part 6211, receiving part 6212, blocking part 6213;

[0053] Second driving mechanism 7, rotating part 71, second driving part 72, second embedding slot 711, touching boss 712;

[0054] Bucket cover 8, front end 81, rear end 82, baffle 811;

[0055] Third driving mechanism 9, top part 91, third driving part 92. DETAILED DESCRIPTION

[0056] 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 terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the description herein and the claims of the application and the above description of the drawings herein is not intended to be complete descriptions of all features of the application; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. Numerous modifications, adaptations, and variations within the scope and spirit of the present application can be disclosed and other implementations can be apparent to those skilled in the art to which the present application pertains. The description herein is not intended to limit the application to the described embodiments, but to illustrate the application. The terms "comprises", "comprising", "includes", "including", "has", "having" and their variants are intended to be inclusive and allow for items, components or elements not expressly mentioned. The terms "first", "second" and the like are used to distinguish between similar objects, not to describe a particular sequential order.

[0057] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0058] In order to better understand the technical scheme of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings.

[0059] Referring to the drawings Figures 1 to 12 The application provides a cat litter cleaning device, which comprises a sand storage part 2, a garbage storage part 3, a first sand cleaning part 4, a first driving mechanism 5, a second sand cleaning part 6 and a second driving mechanism 7.

[0060] The sand storage part 2 is provided with a sand cavity 20, and the sand cavity 20 has a first end 201 and a second end 202. The garbage storage part 3 is arranged beside the sand storage part 2 and close to the second end 202, and the garbage storage part 3 is provided with a garbage cavity 30. An opening 301 is formed in the top of the garbage storage part 3 and communicates with the garbage cavity 30. The first sand cleaning part 4 comprises a first connecting part 41 and a first sand cleaning part 42 arranged on the first connecting part 41, and the first sand cleaning part 42 extends into the sand cavity 20. The first driving mechanism 5 is drivingly connected with the first connecting part 41 and is used to drive the first sand cleaning part 42 to translate from the first end 201 to the second end 202 or to drive the first sand cleaning part 42 to translate from the second end 202 to the first end 201. The second sand cleaning part 6 comprises a second connecting part 61 and a second sand cleaning part 62 arranged on the second connecting part 61, and the second connecting part 61 is rotatably arranged. The second driving mechanism 7 is drivingly connected with the second connecting part 61 and is used to drive the second sand cleaning part 62 to rotate around the first connecting part 41.

[0061] The second sand cleaning part 6 has a first state in which the second sand cleaning part 62 extends into the second end 202 and a second state in which the second sand cleaning part 62 is rotated to be higher than the opening 301 and is inclined to the opening 301. When the second sand cleaning part 6 is in the second state, the included angle between the second sand cleaning part 62 and the horizontal plane is between 30° and 60°.

[0062] The first sand cleaning part 42 is driven to move from the first end 201 to the second end 202, so as to concentrate the fecal matter in the sand cavity 20 to the second end 202 and then return to the first end 201. During the movement, the first sand cleaning part 42 also performs a flattening operation on the cat litter in the sand cavity 20. Initially, the second sand cleaning part 6 is in the first state and will change to the second state after the second sand cleaning part 6 is started. The fecal matter accumulated at the second end 202 is taken out of the sand cavity 20 by the second sand cleaning part 62. As the second sand cleaning part 62 is raised, the second sand cleaning part 62 is higher than and inclined to the opening 301, so that the fecal matter carried on the second sand cleaning part 62 rolls along the second sand cleaning part 62 and falls into the garbage storage part 3, thereby completing the cleaning of the cat litter. After the fecal matter falls into the garbage storage part 3, the second sand cleaning part 6 returns to the first state.

[0063] During the above-described sand cleaning process, the first sand cleaning part 4 and the second sand cleaning part 6 both have a filtering effect on the cat litter, that is, the cat litter is filtered twice during the above-described sand cleaning process, which can improve the reliability of cleaning the cat litter and make the filtering of the cat litter more sufficient and save the consumption of cat litter. The existing cat litter box with a single rake moving in multiple directions needs to have at least part of the wires connected to the rake and move with the rake, and the wires are prone to being entangled and pulled, resulting in low wire life and high failure rate. Therefore, the first sand cleaning part 4 and the second sand cleaning part 6 of the embodiment both move in a single direction, and no additional electrical devices need to be connected to the first sand cleaning part 4 and the second sand cleaning part 6, so that the first driving mechanism 5 and the second driving mechanism 7 can adopt a fixed installation structure, and the wires do not need to move with the first sand cleaning part 4 or the second sand cleaning part 6, preventing the wires from being entangled and stretched and improving the service life of the cat litter cleaning device.

[0064] In addition, the sand storage part 2 and the garbage storage part 3 can be connected by a connecting frame 11 to keep the positions of the two fixed.

[0065] Of course, in another embodiment, the cat litter cleaning device can not need to have the garbage storage part 3 and a garbage can can be placed by the user beside the sand storage part 2.

[0066] Further, in order to improve the reliability of the sand cleaning result, as shown in FIG. 6, the first sand cleaning part 4 and the second sand cleaning part 6 can be provided with a plurality of sand cleaning parts. Figure 4 、 5As shown in Figure 6, in this embodiment, the first connecting portion 41 is rod-shaped and extends along the width direction of the sand storage component 2. The first sand cleaning portion 42 includes a plurality of first cleaning teeth 421 distributed along the length direction of the first connecting portion 41, and the first cleaning teeth 421 extend into the sand cavity 20. The second connecting portion 61 is also rod-shaped and extends along the width direction of the sand storage component 2. The second sand cleaning portion 62 includes a plurality of second cleaning teeth 621 distributed along the length direction of the second connecting portion 61. When the first sand cleaning portion 42 moves to the second end 202, the plurality of first cleaning teeth 421 and the plurality of second cleaning teeth 621 are staggered to ensure that the fecal blocks are concentrated on the second cleaning teeth 621. After the second cleaning teeth 621 swing, they can carry away all the fecal blocks. Of course, in other embodiments, the first cleaning tooth 421 and the second cleaning tooth 621 may not be intersected. Instead, the first cleaning tooth 421 is designed to be higher than the second cleaning tooth 621. That is, after the first cleaning tooth 421 moves to the second end 202, the vertical projections of the first cleaning tooth 421 and the second cleaning tooth 621 have an overlapping part or intersecting with each other, which can achieve the same technical effect as the previous embodiment.

[0067] As attached Figure 5 As shown, the plurality of first cleaning teeth 421 include a pushing portion 4211 and a hook portion 4212. The pushing portion 4211 is connected to the first connecting portion 41. The pushing portion 4211 extends downward and connects to the hook portion 4212. The hook portion 4212 has an angle with the pushing portion 4211 and extends laterally to the second end 202. Both the pushing portion 4211 and the hook portion 4212 are rod-shaped and integrally bent. The pushing portion 4211 is used to push the fecal blocks and filter sand, and the hook portion 4212 is used to prevent the fecal blocks from falling off the pushing portion 4211 from below.

[0068] As attached Figure 5 As shown, each second cleaning tooth 621 includes a guide portion 6211, a receiving portion 6212, and a blocking portion 6213. The guide portion 6211 is connected to the second connecting portion 61. When the second sand-cleaning component 6 is in the first state, the guide portion 6211 extends downward and connects to the receiving portion 6212, with an angle between the receiving portion 6212 and the guide portion 6211. The receiving portion 6212 extends laterally towards the first end 201 and connects to the blocking portion 6213, with an angle between the blocking portion 6213 and the receiving portion 6212, and extends upward. Specifically, the guide portion 6211 and the receiving portion 6212 are arranged at an obtuse angle, and the blocking portion 6213 and the receiving portion 6212 are also arranged at an obtuse angle. The guide portion 6211, the receiving portion 6212, and the blocking portion 6213 are all rod-shaped structures and are integrally bent, for example, formed by bending an iron rod. The receiving part 6212 and the blocking part 6213 are used to hook the fecal block to prevent the fecal block from falling back into the sand cavity 20 during the rotation of the second cleaning tooth 621; when the second sand cleaning part 6 is in the second state, the guiding part 6211 is used to guide the falling direction of the fecal block.

[0069] As attached Figure 9 As shown, the second connecting portion 61 is configured as a bent plate structure, having an offset portion 612 and a sand-blocking portion 613. The offset portion 612 is connected to the second drive mechanism 7, and the sand-blocking portion 613 is plate-shaped and parallel to the rotation axis 60 of the second sand-cleaning member 6. The sand-blocking portion 613 is connected to the offset portion 612. Due to the presence of the offset portion 612, the sand-blocking portion 613 is offset from the rotation axis 60 of the second sand-cleaning member 6, and the second cleaning tooth 621 extends to the side of the sand-blocking portion 613 away from the offset portion 612. Furthermore, the sand-blocking portion 613 extends at least beyond the rotation axis 60 of the second sand-cleaning member 6 to its own perpendicular line 601. The offset portion 612 can also be configured as a plate, thus creating an angle between the offset portion 612 and the sand-blocking portion 613, ranging from 50 to 80 degrees. When the second sand-cleaning component 6 is in the first state, the offset portion 612 is horizontally positioned, while the sand-blocking portion 613 extends downwards. Therefore, when the second sand-cleaning component 6 is in the second state, as shown in the attached... Figure 7 As shown, this prevents fecal pellets from sliding down the guide section 6211 towards the opening and remaining in the rotational gap between the offset section 612 and the sand storage component 1.

[0070] Regarding the structure of the first drive mechanism 5, see attached. Figure 5 As shown, in this embodiment, the first driving mechanism 5 specifically includes a driving rod 51, a pushing block 52, and a first driving member 53. The driving rod 51 is disposed on the side of the sand storage member 2 along its length. The first connecting part 41 is mounted on the pushing block 52. The first driving member 53 is used to drive the pushing block 52 to translate along the driving rod 51. Specifically, the driving rod 51 has threads, penetrates the pushing block 52, and is threadedly connected to the pushing block 52. The first driving member 53 is a motor, which drives the driving rod 51 to rotate around its own axis, thereby driving the pushing block 52 to translate along the driving rod 51. To ensure that the pushing block 52 only performs linear motion, a guide structure that cooperates with the pushing block 52 can also be provided, such as a guide rail or guide groove.

[0071] Furthermore, to make the force on the first sand-cleaning component 4 more balanced, in this embodiment, a pushing block 52 is connected to both sides of the first sand-cleaning component 4, and the first driving mechanism 5 also includes a guide rod 54, which is arranged parallel to the driving rod 51. The guide rod 54 and the driving rod 51 are respectively arranged on opposite sides of the sand storage component 2. The two pushing blocks 52 are respectively penetrated by the driving rod 51 and the guide rod 54, and the first connecting part 41 is installed on both pushing blocks 52. Regarding the connection structure between the first connecting part 41 and the pushing block 52, in this embodiment, a downwardly extending first interlocking groove 521 is opened on the pushing block 52, and the side end 411 of the first connecting part 41 is inserted into the first interlocking groove 521 from top to bottom with an interference fit. To improve the connection stability between the first connecting part 41 and the pushing block 52, the side end 411 of the first connecting part 41 can also be arranged in a "U" shape, and the shape of the first interlocking groove 521 can be set accordingly.

[0072] Regarding the structure of the second driving mechanism 7, in this embodiment, the second driving mechanism 7 includes a rotating member 71 and a second driving member 72. The rotating member 71 is rotatably disposed beside the sand storage member 2, and the second connecting part 61 is connected to the rotating member 71. The second driving member 72 is also a motor, and the rotating member 71 is directly connected to the output shaft of the second driving member 72. The second driving member 72 is used to drive the rotating member 71 to rotate, so as to drive the second sand cleaning member 6 into the first state or the second state. When the second sand cleaning member 6 is in the first state, a plurality of second cleaning teeth 621 extend into the sand cavity 20; when the second sand cleaning member 6 is in the second state, the plurality of second cleaning teeth 621 are higher than the opening 301 and inclined towards the opening 301.

[0073] Among them, as attached Figure 5 As shown, a second fitting groove 711 extending perpendicularly to its own axis of rotation can be provided on the rotating component 71. The side end 611 of the second connecting part 61 is inserted into the second fitting groove 711 from top to bottom in an interference fit manner. The rotation axis of the rotating component 71 is the rotation axis 60 of the second sand cleaning component 6.

[0074] Furthermore, the cat litter cleaning device also includes a lid 8 and a third drive mechanism 9. The lid 8 is rotatably mounted above the litter storage unit 3 and can close the opening 301. The third drive mechanism 9 is used to drive the lid 8 away from the second end 202 to open the opening 301. The lid 8 is used to catch the cat and prevent it from falling into the litter chamber 30. In addition, the lid 8 has a hollow design, so when the cat stands on the lid 8, the cat litter stuck to the cat's paws can fall into the litter storage unit 3. In addition, the litter storage unit 3 can also be provided with a funnel-shaped structure 31 that converges towards the opening 301 to collect fecal matter at the opening 301. A garbage bag and a sealing device can be installed at the opening 301 so that the fecal matter is collected in the garbage bag and then sealed by the sealing device.

[0075] Further, the bucket cover 8 is rotatably arranged on the side 302 of the garbage storage 3 away from the second end 202. The third driving mechanism 9 comprises a top piece 91 and a third driving piece 92. The top piece 91 is rotatably arranged beside the garbage storage 3. The third driving piece 92 is also an electric motor. The top piece 91 is directly connected to the output shaft of the third driving piece 92. The third driving piece 92 is drivingly connected to the top piece 91 to drive the top piece 91 to rotate and lift the bucket cover 8, thereby opening the opening 301.

[0076] Further, referring to the accompanying drawings Figure 7 The bucket cover 8 comprises a front end 81 and a rear end 82. The rear end 82 is rotatably arranged on the side 302 of the garbage storage 3 away from the second end 202. The front end 81 is swingable about the rear end 82. The front end 81 is provided with a baffle 811. When the bucket cover 8 covers the opening 301, the baffle 811 extends into the sand cavity 20. The baffle 811 is mainly used to shield the second connecting part 61 to prevent the second connecting part 61 from being exposed in the first state. On the one hand, it reduces the existence of gaps. On the other hand, it has an aesthetic effect.

[0077] Further, referring to the accompanying drawings Figure 8 、 9 and 10, the cat litter cleaning device further comprises a first limit switch 101, a second limit switch 102, a third limit switch 103 and a fourth limit switch 104. The first limit switch 101 and the second limit switch 102 are respectively arranged corresponding to the positions of the first end 201 and the second end 202. The first limit switch 101 and the second limit switch 102 are respectively matched with the first sand cleaning piece 4 to limit the moving position of the first sand cleaning piece 4. That is, when the first sand cleaning piece 4 triggers the first limit switch 101 or the second limit switch 102, the current movement will be stopped and the next program will be entered. The third limit switch 103 is located below the rotating piece 71. The rotating piece 71 is provided with a protruding touch boss 712. The touch boss 712 can trigger the third limit switch 103 with the rotation of the rotating piece 71. The working principle of the third limit switch 103 is the same as that of the first limit switch 101. The third limit switch 103 is used to limit the rotation angle of the rotating piece 71. For example, when the second cleaning tooth 621 is rotated to be higher than the opening 301 and forms a 45° angle with the horizontal plane, the third limit switch 103 is triggered. The fourth limit switch 104 is arranged below the top piece 91. The top piece 91 can be rotated to trigger the fourth limit switch 104. The fourth limit switch 104 is used to limit the rotation angle of the top piece 91.

[0078] In practical use, if the cat litter cleaning device is activated, the third drive will first cause the top component 91 to rotate and open the lid 8. Then, the first litter cleaning component 4 will begin to move from the first end 201 to the second end 202 to push and concentrate the feces at the second end 202. After the first litter cleaning component 4 triggers the second positioning switch 102, the first litter cleaning component 4 will begin to move in the opposite direction back to the first end 201. After the second positioning switch 102 is triggered, the second litter cleaning component 6 will begin to rotate after a specified delay time until the third positioning switch 103 is triggered. At this time, the second litter cleaning component 6 is in the second state, and the second cleaning tooth 621 reaches the specified tilt angle, and the feces are dumped into the garbage chamber 30. Next, the first sand-cleaning component 4 returns to the first end 201 and triggers the first position switch 101. The first sand-cleaning component 4 stops moving, and the rotating component 71 also begins to reset and drives the second sand-cleaning component 6 back to the first state. At the same time, the top component 91 also begins to rotate and reset until the fourth position switch 104 is triggered, at which point the bucket lid 8 closes the opening 301 again.

[0079] Furthermore, the aforementioned sand storage component 2, waste storage component 3, first sand cleaning component 4, first drive mechanism 5, second sand cleaning component 6, and second drive mechanism 7 can be integrated into the same housing 1 for use, as shown in the attached diagram. Figure 1 , 2 As shown in Figure 11, in one embodiment, the cat litter cleaning device further includes a housing 1, in which the litter storage component 2, the waste storage component 3, the first litter cleaning component 4, the first drive mechanism 5, the second litter cleaning component 6, and the second drive mechanism 7 are all disposed. The aforementioned connecting frame 11 is part of the housing 1. That is, the drive rod 51 is rotatably mounted inside the housing 1, the guide rod 54 is fixedly mounted inside the housing 1, and the first drive component 53, the second drive component 72, and the third drive component 92 are all fixedly mounted inside the housing 1. In addition, a guide groove 522 can be formed on the push block 52, and a guide boss 12 that mates with the guide groove 522 can be provided in the connecting frame 11. The mating structure of the guide boss 12 and the guide groove 522 is the aforementioned guide structure, used to ensure that the push block 52 only moves in a straight line within the housing 1.

[0080] In other embodiments, the cat litter cleaning device can include a housing 1, a first litter cleaning member 4, a first driving mechanism 5, a second litter cleaning member 6 and a second driving mechanism 7. Specifically, the housing 1 is provided with a litter chamber 20 and a garbage chamber 30, the litter chamber 20 has a first end 201 and a second end 202, the garbage chamber 30 is arranged close to the second end 202, and an opening 301 is arranged at the top of the garbage chamber 30. The first litter cleaning member 4 includes a first connecting portion 41 and a first litter cleaning portion 42 arranged on the first connecting portion 41, and the first litter cleaning portion 42 extends into the litter chamber 20. The first driving mechanism 5 is drivingly connected with the first connecting portion 41, and is used to drive the first litter cleaning portion 42 to translate from the first end 201 to the second end 202, or to drive the first litter cleaning portion 42 to translate from the second end 202 to the first end 201. The second litter cleaning member 6 includes a second connecting portion 61 and a second litter cleaning portion 62 arranged on the second connecting portion 61, and the second connecting portion 61 is rotatably arranged. The second driving mechanism 7 is drivingly connected with the second connecting portion 61, and is used to drive the second litter cleaning portion 62 to rotate around the first connecting portion 41. The second litter cleaning member 6 has a first state in which the second litter cleaning portion 62 extends into the litter chamber 20, and a second state in which the second litter cleaning portion 62 is rotated to be higher than the opening 301 and is inclined to the opening 301.

[0081] This other embodiment is not shown in the drawings, and the difference between this other embodiment and the previous embodiment is that the other embodiment combines the litter storage member 2 and the garbage storage member 3 of the previous embodiment into the housing 1 for integrated use, and the effect is the same as that of the previous embodiment.

[0082] Obviously, the above-described embodiments are only some embodiments of the present application, but not all the embodiments. The preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features therein. Any equivalent structure made by using the contents of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A cat litter cleaning device, characterized in that, The sand cleaning device comprises: a sand storage part (2) provided with a sand cavity (20); a first sand cleaning part (4) comprising a plurality of first cleaning teeth (421) arranged at intervals and extending into the sand cavity (20); a first driving mechanism (5) drivingly connected with the first sand cleaning part (4) and used for driving the first sand cleaning part (4) to move; a second sand cleaning part (6) rotatably arranged and comprising a plurality of second cleaning teeth (621) arranged at intervals and having a first state in which the second cleaning teeth (621) extend into the sand cavity (20) and a second state in which the second cleaning teeth (621) are rotated to be higher than the sand cavity (20); a second driving mechanism (7) drivingly connected with the second sand cleaning part (6) and used for driving the second sand cleaning part (6) to rotate; when the second sand cleaning part (6) is in the first state, the first sand cleaning part (4) can be close to or away from the second sand cleaning part (6).

2. A cat litter box cleaning device according to claim 1, wherein, The sand cavity (20) has a first end (201) and a second end (202); when the second sand cleaning part is in the first state, the second sand cleaning part extends into the second end; the first driving mechanism (5) is used for driving the first cleaning teeth (421) to translate from the first end (201) to the second end (202) or driving the first cleaning teeth (421) to translate from the second end (202) to the first end (201).

3. A cat litter box cleaning device according to claim 2, wherein, when the second sand cleaning part (6) is in the first state and the first cleaning teeth (421) move to the second end (202), a plurality of the first cleaning teeth (421) and a plurality of the second cleaning teeth (621) are arranged in an interlaced manner.

4. The cat litter box cleaning device of claim 2, wherein, The first sand cleaning part (4) comprises a first connecting part (41), a plurality of the first cleaning teeth (421) are distributed on the first connecting part (41), the first connecting part (41) is connected with the first driving mechanism (5), a plurality of the first cleaning teeth (421) comprise a flat pushing part (4211) and a hook part (4212), the flat pushing part (4211) is connected to the first connecting part (41), the flat pushing part (4211) extends downward and connects the hook part (4212), the hook part (4212) has an included angle with the flat pushing part (4211) and extends transversely to the second end (202).

5. The cat litter box cleaning device of claim 2, wherein, The second sand cleaning part (6) further comprises a second connecting part (61), a plurality of the second cleaning teeth (621) are distributed on the second connecting part (61), the second connecting part (61) is connected with the second driving mechanism (7), and a plurality of the second cleaning teeth (621) each comprise a guide part (6211), a receiving part (6212) and a blocking part (6213), the guide part (6211) is connected to the second connecting part (61); When the second sand cleaning part (6) is in the first state, the guide part (6211) extends downward and connects the receiving part (6212), the receiving part (6212) and the guide part (6211) have an included angle, the receiving part (6212) extends transversely to the first end (201) and connects the blocking part (6213), the blocking part (6213) and the receiving part (6212) have an included angle and extend upward.

6. A cat litter box cleaning device according to claim 5, wherein, The second connecting part (61) includes a deviation part (612) and a sand blocking part (613), the deviation part (612) is connected with the second driving mechanism (7), the sand blocking part (613) is plate-shaped and connected with the deviation part (612), the sand blocking part (613) is arranged away from the rotation axis (60) of the second sand cleaning part (6), and the second cleaning tooth (621) is arranged on the side of the sand blocking part (613) away from the deviation part (612).

7. The cat litter box cleaning device of claim 1, wherein, The first driving mechanism (5) includes a driving rod (51), a pushing block (52) and a first driving part (53), the driving rod (51) is arranged along the length direction of the sand storage part (2) on the side of the sand storage part (2), the first sand cleaning part (4) is mounted on the pushing block (52), and the first driving part (53) is used for driving the pushing block (52) to move along the driving rod (51).

8. A cat litter box cleaning device according to claim 7, wherein, The driving rod (51) has threads, the driving rod (51) penetrates the pushing block (52) and is threadedly connected with the pushing block (52), and the first driving part (53) is drivingly connected with the driving rod (51).

9. The cat litter box cleaning device of claim 7, wherein, The first driving mechanism (5) further includes a guide rod (54), the guide rod (54) is arranged in parallel with the driving rod (51), the guide rod (54) and the driving rod (51) are arranged on opposite sides of the sand storage part (2) respectively, the pushing block (52) has two, and the two pushing blocks (52) are connected with the driving rod (51) and the guide rod (54) respectively, and the first sand cleaning part (4) is mounted on the two pushing blocks (52) simultaneously.

10. The cat litter box cleaning device of claim 1, wherein, The second driving mechanism (7) includes a rotating part (71) and a second driving part (72), the rotating part (71) is rotationally arranged on the side of the sand storage part (2), the second sand cleaning part (6) is connected to the rotating part (71), and the second driving part (72) is used for driving the rotating part (71) to rotate, so that the second sand cleaning part (6) enters the first state or the second state.

11. The cat litter box cleaning device of claim 2, wherein, Further including a garbage storage part (3), the garbage storage part (3) is arranged on the side of the sand storage part (2) and close to the second end (202), the garbage storage part (3) is provided with a garbage cavity (30) therein, and an opening (301) is formed in the top of the garbage storage part (3) and communicates with the garbage cavity (30); When the second sand cleaning part (6) is in the second state, the second cleaning tooth (621) rotates to be higher than the opening (301) and inclines to the opening (301).

12. A cat litter box cleaning device according to claim 11, wherein, The dust storage member (3) further comprises a barrel cover (8) and a third driving mechanism (9), the barrel cover (8) is rotatably arranged above the dust storage member (3) and covers the opening (301), the third driving mechanism (9) is used for driving the barrel cover (8) to open the opening (301) away from the second end (202).

13. A cat litter box cleaning device according to claim 12, wherein, The third driving mechanism (9) comprises a top piece (91) and a third driving piece (92), the top piece (91) is rotatably arranged beside the dust storage member (3), and the third driving piece (92) is drivingly connected with the top piece (91) to drive the top piece (91) to rotate and lift the barrel cover (8).

14. The cat litter box cleaning device of claim 12, wherein, The barrel cover (8) comprises a front end (81) and a rear end (82), the rear end (82) is rotatably arranged on one side (302) of the dust storage member (3) away from the second end (202), and the front end (81) can swing around the rear end (82); the front end (81) is provided with a baffle (811), when the barrel cover (8) covers the opening (301), the baffle (811) extends into the sand cavity (20).

15. The cat litter box cleaning device of claim 13, wherein, The dust storage member (3) further comprises a first reach switch (101), a second reach switch (102), a third reach switch (103) and a fourth reach switch (104), the first reach switch (101) is arranged corresponding to the position of the first end (201), the second reach switch (102) is arranged corresponding to the position of the second end (202), and the first sand cleaning member (4) can trigger the first reach switch (101) or the second reach switch (102) respectively; the third reach switch (103) is arranged corresponding to the position of the second sand cleaning member (6), and the second sand cleaning member (6) can rotate to trigger the second reach switch (102); the fourth reach switch (104) is arranged corresponding to the position of the top piece (91), and the top piece (91) can rotate to trigger the fourth reach switch (104).

16. The cat litter box cleaning device of claim 1, wherein, The dust storage member (3) further comprises a shell (1), and the sand storage member (2), the first sand cleaning member (4), the first driving mechanism (5), the second sand cleaning member (6) and the second driving mechanism (7) are arranged in the shell (1).

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