Pet sand basin with detachable sand bin

Abstract

The pet sand basin with the detachable sand bin comprises the sand bin, the sand bin comprises a main shell and at least one inner side plate, the main shell is provided with a sand groove which is open outwards and used for containing sand, and the inner side plates are arranged in the sand groove and detachably connected with the main shell. At least one inner side plate is detachably connected with the main shell through a hand screwing piece, and a containing hole for containing the hand screwing piece is formed in the outer wall of the main shell. According to the scheme, all the inner side plates are designed to be detachable relative to the main shell, so that the whole sand silo which is large in size and heavy does not need to be cleaned, all the inner side plates can be detached and independently cleaned, the cleaning mode is more labor-saving and easier to clean, the efficiency of cleaning the sand silo by a user is improved, and then the use experience of the user is improved. In addition, according to the scheme, at least one inner side plate is detachable relative to the main shell through a hand screwing piece, so that connection or detachment between the inner side plate and the main shell is more efficient, and the efficiency and experience of cleaning the sand silo by a user are further optimized.

Description

Technical Field

[0001] This utility model relates to the technical field of pet litter boxes, and more particularly to a pet litter box with a detachable litter compartment. Background Technology

[0002] As people's living standards improve, their demands for spiritual life also gradually increase. More and more people are keeping pets (such as cats, rabbits, or dogs), leading to a growing demand for pet litter boxes for collecting feces and urine. Taking cat litter boxes as an example, these are used with cat litter as a cat's toilet. The litter compartment is used to hold the litter; that is, the cat needs to enter the litter compartment when urinating or defecating. Currently, there are two main types of litter compartment structures. The first type is a one-piece injection-molded structure. If this type of litter compartment is made into a spherical shape or other complex curved shape, it is usually difficult to demold, thus greatly limiting the appearance of the litter compartment. The second type of litter compartment structure includes a main shell and multiple inner side plates fixed inside the main shell. Because this type of litter compartment is a split design, the individual parts are easier to demold during injection molding, ultimately facilitating the design of a better appearance (such as a spherical litter compartment). At the same time, the multiple inner side plates can improve the overall rigidity of the litter compartment, reducing the risk of deformation under stress. More specifically, litter boxes require cleaning after prolonged use. The two existing types of litter boxes require the entire box to be removed for cleaning. On the one hand, the removed litter box is not only large in size but also heavy, resulting in a poor cleaning experience for users. On the other hand, when the litter box has a spherical shape or other complex curved surfaces, it is difficult to clean the inside of the litter box thoroughly. Therefore, the structure of existing pet litter boxes needs to be improved. Utility Model Content

[0003] This utility model provides a pet litter box with a detachable litter compartment, mainly solving the technical problem of how to reduce the difficulty of cleaning the litter compartment and improve the cleaning efficiency of the litter compartment.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A pet litter box with a detachable litter compartment includes a litter compartment, which includes a main shell and at least one inner side plate. The main shell is provided with an outwardly open litter groove for collecting litter. Each of the inner side plates is disposed in the litter groove and is detachably connected to the main shell. At least one of the inner side plates is detachably connected to the main shell by a hand-tightening component. The outer wall of the main shell is provided with a receiving hole for receiving the hand-tightening component.

[0006] In one technical solution, the pet litter box further includes a main unit and a waste collection chamber. The waste collection chamber is located at the bottom of the main unit, and the litter chamber is located at the top of the main unit and connected to the main unit. The main unit is used to drive the litter chamber to rotate. There are multiple inner side plates, each including a pad, a guide plate, and a filter screen. The pad is located at the bottom of the litter trough and is detachably connected to the main shell. The guide plate is located on the side wall of the litter trough and is detachably connected to the main shell via a hand-tightening component. The filter screen is fixed to the bottom of the guide plate and approaches the upper surface of the pad.

[0007] In one of the technical solutions, a locking seat is fixed on the back of the guide plate at the position corresponding to the receiving hole. The hand-tightening component is rotatably engaged with the locking seat. When the hand-tightening component rotates relative to the locking seat, it has a first position that can be pulled outward from the receiving hole and a second position that is restricted by the locking seat so that it cannot be pulled outward from the receiving hole.

[0008] In one technical solution, the locking seat has a groove on the side facing away from the guide plate, and an arc-shaped groove is provided on the side wall of the groove. An allowance opening is provided at the end of the groove at the opening, which communicates with the arc-shaped groove. The hand-tightening component includes a connected hand-tightening head and a connecting part. A connecting post with an outer dimension smaller than the allowance opening is protruding on the side wall of the connecting part. The connecting part and the connecting post are both received in the groove. The hand-tightening head is received in the receiving hole. When the hand-tightening component is in the first position, the connecting post is facing the allowance opening. When the hand-tightening component is in the second position, the connecting post is located in the arc-shaped groove.

[0009] In one of the technical solutions, the locking seat is provided with two positioning holes and a screw hole located between the two positioning holes at the bottom of the groove. A nut sleeve is embedded on the back of the guide plate at the position corresponding to the screw hole, and a positioning post is protruded on the back of the guide plate at the position corresponding to each positioning hole.

[0010] In one of the technical solutions, the main shell has a sliding groove and a protruding buckle on the side wall inside the sand trough. The sliding groove extends outward and forms a notch. The buckle is close to the upper edge of the main shell. The back of the guide plate has a sliding strip that cooperates with the sliding groove. The back of the guide plate has a groove that cooperates with the buckle.

[0011] In one of the technical solutions, the bottom end of the guide plate is provided with a retaining shaft, and the top end of the filter screen is provided with a C-shaped groove that engages with the retaining shaft.

[0012] In one of the technical solutions, the main shell has a plurality of limiting blocks protruding on the inner sidewall of the sand trough to limit the upper edge of the pad plate.

[0013] In one of the technical solutions, the upper edge of the pad is provided with a limiting part at the position corresponding to at least one of the limiting blocks, and the back of the limiting part is provided with an upward through-hole for the limiting block to be embedded.

[0014] In one of the technical solutions, a gear section is provided on the outer wall of the main shell, the main unit includes a drive gear that meshes with the gear section, and a roller for supporting the sand bin is provided on the top surface of the main unit.

[0015] Compared with the prior art, the pet litter box with a detachable litter compartment provided by this utility model has at least the following beneficial effects:

[0016] This design employs a split-type sand chamber structure, allowing for a more aesthetically pleasing appearance (e.g., a spherical shape). Based on this, all inner side panels are designed to be detachable from the main shell. This eliminates the need to remove the entire bulky sand chamber for cleaning after prolonged use; instead, each inner side panel can be disassembled and cleaned individually. This cleaning method is more labor-saving and easier to achieve, improving user efficiency and enhancing the user experience. Furthermore, this design preferably features at least one inner side panel that is detachable from the main shell via a hand-tightening mechanism. This ensures more efficient connection and disassembly between the inner side panel and the main shell, further optimizing the user's sand chamber cleaning efficiency and experience. To accommodate the hand-tightening mechanism, the main shell includes a receiving hole to ensure the sand chamber maintains a good appearance even after installation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This application provides a schematic diagram of the structure of a pet litter box with a detachable litter compartment.

[0019] Figure 2 An exploded view of the structure of a pet litter box with a detachable litter compartment provided in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the structure of the sand silo provided in an embodiment of this application;

[0021] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0022] Figure 5 An exploded view of the sand silo provided in the embodiments of this application;

[0023] Figure 6 for Figure 5 A magnified view of a section at point B in the middle;

[0024] Figure 7 for Figure 5 A magnified view of a section at point C;

[0025] Figure 8 An exploded view of the sand bin provided in this application embodiment from another angle;

[0026] Figure 9 for Figure 8 A magnified view of a section at point D;

[0027] Figure 10 for Figure 8 A magnified view of a section at point E in the middle.

[0028] Figure label:

[0029] 1. Sand bin; 2. Main unit; 22. Drive gear; 23. Roller; 3. Stool collection bin;

[0030] 11. Main shell; 111. Sand groove; 112. Receiving hole; 113. Limiting block; 114. Gear section; 115. Slide groove; 116. Buckle; 117. Notch;

[0031] 12. Inner side plate; 121. Pad plate; 1211. Limiting part; 1212. Limiting groove; 122. Guide plate; 1221. Snap pin; 1222. Positioning post; 1223. Sliding strip; 1224. Snap groove; 123. Filter screen; 1231. C-shaped clamping groove;

[0032] 13. Hand-tightening component; 131. Hand-tightening head; 132. Connecting part; 133. Connecting post;

[0033] 14. Locking seat; 141. Groove; 142. Arc groove; 143. Clearance opening; 144. Positioning hole; 145. Screw hole;

[0034] 15. Nut sleeve; 16. Screw. Detailed Implementation

[0035] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0037] It should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically defined.

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0040] Please refer to the following: Figures 1 to 3 , Figure 5 and Figure 8 This utility model provides a pet litter box with a detachable litter compartment, including a litter compartment 1. The litter compartment 1 specifically includes a main shell 11 and at least one inner side plate 12. The main shell 11 is provided with an outwardly open litter trough 111, which is used to collect litter. Taking cat use as an example, the litter trough 111 is used to store cat litter for cats to defecate or urinate in the litter trough 111. Each inner side plate 12 is disposed in the litter trough 111 and is detachably connected to the main shell 11. At least one inner side plate 12 is detachably connected to the main shell 11 by a hand-tightening component 13. The outer wall of the main shell 11 is provided with a receiving hole 112 for receiving the hand-tightening component 13.

[0041] Specifically, this solution adopts a split design for the sand chamber 1, which allows for a more aesthetically pleasing design (e.g., designing the sand chamber 1 to have a spherical shape). Based on this, this solution designs all the inner side panels 12 to be detachable from the main shell 11. This means that when the sand chamber 1 is used for a long time and needs cleaning, it is not necessary to remove the entire large and heavy sand chamber 1 for cleaning. Instead, each inner side panel 12 can be disassembled and cleaned individually. This cleaning method is more labor-saving and easier to clean, thereby improving the efficiency of cleaning the sand chamber 1 and enhancing the user experience. In addition, this solution preferably makes at least one inner side plate 12 detachable from the main shell 11 by means of a hand-tightening component 13, thereby ensuring that the connection or disassembly between the inner side plate 12 and the main shell 11 can be more efficient, thereby further optimizing the efficiency and experience of users cleaning the sand chamber 1. Based on the use of the hand-tightening component 13, the main shell 11 is provided with a receiving hole 112 for accommodating the hand-tightening component 13, so as to ensure that the sand chamber 1 still has a better appearance after installation using the hand-tightening component 13.

[0042] Please refer to them again. Figures 1 to 3 The pet litter box in this embodiment also includes a main unit 2 and a waste collection chamber 3. The waste collection chamber 3 is located at the bottom of the main unit 2, and the aforementioned litter chamber 1 is located at the top of the main unit 2 and connected to the main unit 2. The main unit 2 is used to drive the litter chamber 1 to rotate. The aforementioned litter chamber 1 includes multiple inner side plates 12. The multiple inner side plates 12 specifically include a pad 121, a guide plate 122, and a filter screen 123. The pad 121 is located at the bottom of the litter trough 111 and is detachably connected to the main shell 11. The guide plate 122 is located on the side wall of the litter trough 111 and is detachably connected to the main shell 11 through the aforementioned hand-tightening component 13. The filter screen 123 is fixed at the bottom of the guide plate 122 and approaches the upper surface of the pad 121. Taking cat use as an example, the litter pad 121 directly holds the cat litter. When the cat defecates or urinates in the litter box 1, the litter clumps together. The litter box 1 rotates under the drive of the main unit 2. During this rotation, the filter 123 carries the litter clumps along with it. Other litter that hasn't clumped is not carried away by the filter 123 and remains at the bottom of the litter box 1 due to its own weight. When the litter box 1 rotates to a designated angle, the litter clumps slide down the surface of the guide plate 122 into the waste collection chamber 3 below due to their own weight. Then, the main unit 2 drives the litter box 1 back to its initial position, thus completing the automatic cleaning function for cat waste. More specifically, when cleaning the litter box 1, only the litter pad 121, guide plate 122, and filter 123 need to be cleaned. Before cleaning, the guide plate 122 and filter 123 must be removed before the bottom litter pad 121 can be removed.

[0043] Please refer to the following: Figure 8 and Figure 10The bottom of the baffle plate 122 is provided with a retaining shaft 1221, and the top of the filter screen 123 is provided with a C-shaped clamping groove 1231. During installation, the filter screen 123 and the baffle plate 122 are engaged by the C-shaped clamping groove 1231 onto the retaining shaft 1221, thus completing the installation. This installation method is relatively simple, and the disassembly of both is also relatively simple. With this design, after removing the hand-tightening component 13 to separate the baffle plate 122 from the main housing 11, the filter screen 123 will be removed together with the baffle plate 122. During installation, the filter screen 123 and the baffle plate 122 only need to be pre-assembled externally, and then the baffle plate 122 can be fixed to the main housing 11 by the hand-tightening component 13, and then the filter screen 123 can be inserted into the interior, thereby improving the efficiency of user installation and disassembly of the filter screen 123.

[0044] Please refer to the following: Figures 3 to 5 The main shell 11 has multiple limiting blocks 113 protruding on the inner wall of the sand trough 111. When installing the pad 121, the pad 121 is placed directly into the sand trough 111, and then the pad 121 is deformed by pressing it down, and its upper edge is ultimately restricted by the multiple limiting blocks 113. At this time, the pad 121 is restricted by the multiple limiting blocks 113 and will not shift within the sand chamber 1. Based on this, please refer to the following: Figure 5 and Figure 7 Preferably, the upper edge of the pad 121 has a protruding limiting part 1211 at a position corresponding to at least one limiting block 113. Moreover, the back of the limiting part 1211 is provided with an upward penetrating limiting groove 1212 for the limiting block 113 to be inserted. This design can improve the positional accuracy of the pad 121 in the sand trough 111 and prevent the pad 121 from being installed out of place. At the same time, the limiting part 1211 also plays a foolproof role, ensuring that the pad 121 can be installed in the sand trough 111 in the correct posture. In addition, by providing the protruding limiting part 1211 and the limiting groove 1212, the user can drive the pad 121 to deform by pinching the limiting groove 1212 with his / her fingers and applying force to the limiting part 1211, which is conducive to detaching the pad 121 from the limitation of the limiting block 113. This makes it easier for the user to disassemble the pad 121 and improves the efficiency of disassembling the pad 121.

[0045] Please refer to the following: Figure 2 and Figure 3 The outer wall of the main housing 11 is provided with a gear section 114, and the main unit 2 includes a drive gear 22 that meshes with the gear section 114 for transmission. The top surface of the main unit 2 is provided with a roller 23 for supporting the sand hopper 1. During operation, the drive gear 22 drives the sand hopper 1 to rotate. During the rotation of the sand hopper 1, the roller 23 below will rotate, so as to solve the problem of large friction between the sand hopper 1 and the main unit 2 during rotation.

[0046] Please refer to the following: Figure 5 , Figure 6 , Figure 8 and Figure 9 A locking seat 14 is fixed on the back of the deflector 122 at the position corresponding to the receiving hole 112. The hand-tightening component 13 is rotatably engaged with the locking seat 14. When the hand-tightening component 13 rotates relative to the locking seat 14, it has a first position that allows it to be pulled outward relative to the receiving hole 112 and a second position that is restricted by the locking seat 14 so that it cannot be pulled outward relative to the receiving hole 112. By quickly switching the hand-tightening component 13 between the first position and the second position, the deflector 122 and the main shell 11 can be quickly connected or the deflector 122 can be quickly unlocked relative to the main shell 11. Specifically, the locking seat 14 has a groove 141 on one side opposite to the guide plate 122. The side wall of the groove 141 has an arc-shaped groove 142. The end of the groove 141 at the opening has a relief opening 143 that connects to the arc-shaped groove 142. The hand-tightening component 13 specifically includes a connected hand-tightening head 131 and a connecting part 132. A connecting post 133 protrudes from the side wall of the connecting part 132. The outer dimensions of the connecting post 133 are smaller than the relief opening 143, so that the connecting post 133 can enter the arc-shaped groove 142 from the relief opening 143. During installation, first place the guide plate 122 in the correct position inside the main shell 11. Then, insert the connecting part 132 and the connecting post 133 of the hand-tightening part 13 into the groove 141. At the same time, the connecting post 133 needs to be aligned with the clearance opening 143. When the connecting post 133 extends from the clearance opening 143 into the arc groove 142, the hand-tightening head 131 will be received in the receiving hole 112 of the main shell 11. At this time, simply rotate the hand-tightening head 131 to screw the connecting post 133 into the arc groove 142. At this time, the hand-tightening part 13 is in the second position. At this time, the hand-tightening part 13 is blocked by the groove wall of the arc groove 142 and cannot be pulled out from the receiving hole 112. Since the hand-tightening head 131 is limited in the receiving hole 112, the guide plate 122 cannot be taken out relative to the main shell 11. When it is necessary to disassemble the deflector plate 122, simply rotate the hand-tightening head 131 in the opposite direction to rotate the connecting post 133 to the position facing the relief opening 143, that is, switch the hand-tightening part 13 to the first position. At this time, the hand-tightening part 13 can be pulled outward, and then the deflector plate 122 can be disassembled.

[0047] In other embodiments, the hand-tightening component 13 may also be a hand-tightening screw or a hand-tightening nut, which has a slower disassembly speed than the structure described above.

[0048] Please refer to them again. Figure 5 , Figure 6 , Figure 8 and Figure 9The locking seat 14 has two positioning holes 144 and a screw hole 145 located between the two positioning holes 144 at the bottom of the groove 141. The back of the guide plate 122 has a nut sleeve 15 embedded in the corresponding screw hole 145. The back of the guide plate 122 has a positioning post 1222 protruding in the corresponding positioning hole 144. When installing the locking seat 14, insert the positioning posts 1222 on the guide plate 122 into the corresponding positioning holes 144 of the locking seat 14, and then use a screw 16 to pass through the screw hole 145 and screw it into the nut sleeve 15 to fix the locking seat 14 to the back of the guide plate 122 with high positional accuracy.

[0049] Please refer to them again. Figure 5 , Figure 8 and Figure 9 The main shell 11 has a sliding groove 115 and a protruding buckle 116 on the side wall inside the sand trough 111. The sliding groove 115 extends outward to form a notch 117. The buckle 116 is close to the upper edge of the main shell 11. The back of the guide plate 122 has a sliding strip 1223 that mates with the sliding groove 115. The back of the guide plate 122 also has a slot 1224 that mates with the buckle 116. When installing the guide plate 122, first insert the sliding strip 1223 into the sliding groove 115. When the guide plate 122 slides to the bottom along the sliding groove 115, press the guide plate 122 to make the buckle 116 on the main shell 11 snap into the slot 1224 of the guide plate 122. Finally, use the hand-tightening component 13 to securely fix the guide plate 122 to the inside of the main shell 11. When disassembling the deflector plate 122, first remove the hand-tightening part 13, then pry the upper edge of the deflector plate 122 to separate the slot 1224 on the back of the deflector plate 122 from the buckle 116 on the main shell 11, and finally pull the deflector plate 122 outward along the slide groove 115.

[0050] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A pet litter box with a detachable litter compartment, characterized in that, The device includes a sand silo, which includes a main shell and at least one inner side plate. The main shell is provided with an outwardly open sand trough for receiving sand. Each inner side plate is disposed in the sand trough and is detachably connected to the main shell. At least one inner side plate is detachably connected to the main shell by a hand-tightening component. The outer wall of the main shell is provided with a receiving hole for receiving the hand-tightening component.

2. The pet litter box with a detachable litter compartment as described in claim 1, characterized in that, The pet litter box also includes a main unit and a waste collection chamber. The waste collection chamber is located at the bottom of the main unit, and the litter chamber is located at the top of the main unit and connected to the main unit. The main unit is used to drive the litter chamber to rotate. There are multiple inner side plates, each of which includes a pad, a guide plate, and a filter screen. The pad is located at the bottom of the litter trough and is detachably connected to the main shell. The guide plate is located on the side wall of the litter trough and is detachably connected to the main shell via a hand-tightening component. The filter screen is fixed to the bottom of the guide plate and approaches the upper surface of the pad.

3. The pet litter box with a detachable litter compartment as described in claim 2, characterized in that, The back of the guide plate is fixed with a locking seat at the position corresponding to the receiving hole. The hand-tightening component is rotatably engaged with the locking seat. When the hand-tightening component rotates relative to the locking seat, it has a first position that can be pulled outward from the receiving hole and a second position that is restricted by the locking seat so that it cannot be pulled outward from the receiving hole.

4. The pet litter box with a detachable litter compartment as described in claim 3, characterized in that, The locking seat has a groove on the side facing away from the guide plate, and an arc-shaped groove is provided on the side wall of the groove. An allowance opening is provided at the end of the groove at the opening, which communicates with the arc-shaped groove. The hand-tightening component includes a connected hand-tightening head and a connecting part. A connecting post with an outer dimension smaller than the allowance opening is provided on the side wall of the connecting part. The connecting part and the connecting post are both received in the groove. The hand-tightening head is received in the receiving hole. When the hand-tightening component is in the first position, the connecting post is facing the allowance opening. When the hand-tightening component is in the second position, the connecting post is located in the arc-shaped groove.

5. The pet litter box with a detachable litter compartment as described in claim 4, characterized in that, The locking seat has two positioning holes and a screw hole located between the two positioning holes at the bottom of the groove. A nut sleeve is embedded on the back of the guide plate at the position corresponding to the screw hole. A positioning post is protruded on the back of the guide plate at the position corresponding to each positioning hole.

6. The pet litter box with a detachable litter compartment as described in claim 2, characterized in that, The main shell has a sliding groove and a protruding buckle on the side wall inside the sand trough. The sliding groove extends outward and forms a notch. The buckle is close to the upper edge of the main shell. The back of the guide plate has a sliding strip that cooperates with the sliding groove. The back of the guide plate has a groove that cooperates with the buckle.

7. The pet litter box with a detachable litter compartment as described in claim 2, characterized in that, The bottom end of the guide plate is provided with a retaining shaft, and the top end of the filter screen is provided with a C-shaped groove that engages with the retaining shaft.

8. The pet litter box with a detachable litter compartment as described in claim 2, characterized in that, The main shell has multiple limiting blocks protruding from the inner wall of the sand trough to limit the upper edge of the pad.

9. The pet litter box with a detachable litter compartment as described in claim 8, characterized in that, The upper edge of the pad has a protruding limiting part at the position corresponding to at least one of the limiting blocks, and the back of the limiting part has an upward through-hole for the limiting block to be embedded in.

10. The pet litter box with a detachable litter compartment as described in claim 2, characterized in that, The outer wall of the main shell is provided with a gear section, the main unit includes a drive gear that meshes with the gear section, and the top surface of the main unit is provided with rollers for supporting the sand bin.

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