Lifting device and sweeper

Abstract

The utility model discloses a lifting device and a sweeper, the lifting device comprises a first connecting piece, and the first connecting piece is used for being connected with a cleaning chassis; the second connecting piece is used for being connected with a mop assembly; the two ends of the movable arm are hinged to the first connecting piece and the second connecting piece respectively; a plurality of first fixing holes are formed in the first connecting piece, each first fixing hole is composed of a through hole and a fastening hole, the hole diameter of each through hole is larger than that of each fastening hole, and the first connecting piece and the cleaning base plate are fixedly connected after the fastening pieces move from the through holes to the fastening holes. According to the lifting device, the first fixing hole is formed in the first connecting piece, when the lifting device needs to be detached from the cleaning chassis, the fastening piece only needs to be loosened, the lifting device is moved, the fastening piece is made to move from the fastening hole to the through hole, then the lifting device and the cleaning chassis can be separated, the lifting device does not need to be held by one hand independently, and therefore the lifting device can be detached from the cleaning chassis. The dismounting process is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a lifting device and a sweeping machine. Background Art

[0002] The mopping assembly of a conventional cleaning robot is typically fixed to the robot's cleaning chassis via a lifting mechanism. Specifically, multiple sets of mounting holes are provided on the fixing plates at both ends of the lifting mechanism. Bolts connect the coating assembly to the lifting mechanism through the mounting holes at one end, while bolts connect the lifting mechanism to the robot's cleaning chassis through the mounting holes at the other end. Over time, when the mopping assembly needs to be removed from the robot's cleaning chassis, it is usually necessary to remove the bolts securing the lifting mechanism to the cleaning chassis one by one, and then separate the lifting mechanism from the cleaning chassis.

[0003] During the aforementioned disassembly process, since the bolts are not removed simultaneously, the lifting device cannot be fixed when the last bolt is removed, causing it to wobble. This often requires one hand to support the device in order to remove the last bolt, making the disassembly process very inconvenient. Furthermore, when the disassembled lifting device with the mop assembly needs to be reinstalled on the cleaning chassis, one hand is also required to secure the first bolt, making the installation process equally inconvenient.

[0004] To this end, the present application aims to propose a lifting device and a sweeper to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a lifting device and a sweeper, aiming to solve the technical problem in the existing sweeper-related technologies that the lifting device and the cleaning chassis of the sweeper are directly fastened by multiple sets of bolts, which makes disassembly and installation inconvenient.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model proposes a lifting device on the one hand, including a first connecting member, the first connecting member is used to connect to the cleaning chassis; a second connecting member, the second connecting member is used to connect to the mop assembly; a movable arm, the two ends of the movable arm are respectively hinged to the first connecting member and the second connecting member; a plurality of first fixing holes are provided on the first connecting member, the first fixing hole is composed of a through hole and a fastening hole, the aperture of the through hole is larger than the aperture of the fastening hole, and the first connecting member and the cleaning chassis are fixedly connected after being moved from the through hole to the fastening hole by a fastener.

[0007] Furthermore, the movable arm includes a first swing arm and a second swing arm arranged parallel to each other, the two ends of the first swing arm are connected to the first connecting member and the second connecting member respectively through a first rotating shaft and a second rotating shaft, and the two ends of the second swing arm are connected to the first connecting member and the second connecting member respectively through a third rotating shaft and a fourth rotating shaft.

[0008] Furthermore, the lifting device also includes a driving mechanism, which is fixedly connected to the first connecting member. The driving mechanism is connected to the fourth rotating shaft through a linkage member, and the second connecting member is retracted toward the first connection under the linkage of the driving mechanism, the linkage member and the fourth rotating shaft.

[0009] Furthermore, the lifting device also includes an elastic member, a first end of the elastic member is connected to the third rotating shaft, and the other end passes through the first swing arm and is connected to the second rotating shaft.

[0010] Furthermore, the driving mechanism includes a fixed part and a telescopic part, the telescopic part is movably connected to the fixed part, the fixed part is connected to the first connecting part, and one end of the telescopic part is connected to the fourth rotating shaft through a linkage part.

[0011] Furthermore, the first connecting member, the second connecting member, the first swing arm and the second swing arm are also provided with weight-reducing holes.

[0012] Furthermore, the first connecting member includes a first mounting portion and a first connecting portion, the second connecting member includes a second mounting portion and a second connecting portion, and the first connecting portion and the second connecting portion are connected via a movable arm.

[0013] Furthermore, the first fixing hole is provided on the first mounting portion.

[0014] In order to achieve the above-mentioned purpose of the utility model, the second aspect of the utility model provides a sweeping machine, comprising the lifting device described in any one of the above-mentioned items.

[0015] Furthermore, the sweeper further comprises a cleaning chassis, a limiting member is provided on the cleaning chassis, and the limiting member is provided at one end of the lifting device for limiting the movement of the lifting device relative to the limiting member.

[0016] Beneficial effects:

[0017] Compared with the prior art, a lifting device according to an embodiment of the present application includes a first connecting member, which is used to connect to a cleaning chassis; a second connecting member, which is used to connect to a mop assembly; a movable arm, wherein both ends of the movable arm are hinged to the first connecting member and the second connecting member respectively; a plurality of first fixing holes are provided on the first connecting member, wherein the first fixing hole is composed of a through hole and a fastening hole, the aperture of the through hole is larger than the aperture of the fastening hole, and the first connecting member and the cleaning chassis are fixedly connected after the fastener is moved from the through hole to the fastening hole. This technical solution provides a first fixing hole on the first connecting member. When the lifting device and the cleaning chassis need to be installed together, the fastener can be first provided or pre-installed on the cleaning chassis, and then the fastener is moved from the through hole to the fastening hole to complete the pre-fixation of the lifting device and the cleaning chassis. The lifting device and the cleaning chassis are fixed by tightening the fastener and coordinating with multiple sets of fasteners. The entire process does not require hand support, and the operation is simpler. Similarly, when the lifting device needs to be removed from the cleaning chassis, it is only necessary to loosen the fastener and move the lifting device so that the fastener moves from the fastening hole to the through hole to separate the lifting device from the cleaning chassis. There is no need to hold the lifting device with one hand, making the disassembly process easier.

[0018] Compared to the prior art, the sweeping machine of the present application includes any of the aforementioned lifting devices and a stopper. The stopper is used to limit the relative movement of the lifting device to the stopper. When the stopper is not removed, the lifting device cannot be disassembled or assembled. It is understood that the sweeping machine of the present application may also include all the technical features and technical effects of the aforementioned lifting devices, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a lifting device connecting a cleaning chassis and a mop assembly according to an embodiment of the present invention;

[0020] Figure 2 This is a three-dimensional schematic diagram of the connection between the lifting device and the mop assembly according to one embodiment of the utility model;

[0021] Figure 3 Schematic diagram of a lifting device according to an embodiment of the present invention.

[0022] in:

[0023] 1. Lifting device; 10. First connecting member; 100. First fixing hole; 1000. Through hole; 1001. Fastening hole; 1002. Weight-reducing hole; 101. First mounting portion; 102. First mounting portion; 11. Second connecting member; 110. Second mounting portion; 111. Second connecting portion; 12. Movable arm; 120. First swing arm; 1200. First rotating shaft; 1201. Second rotating shaft; 1202. Third rotating shaft; 1203. Fourth rotating shaft; 121. Second swing arm; 13. Driving mechanism; 14. Elastic member; 15. Linkage member; 2. Cleaning chassis; 20. Limiting member; 3. Mop assembly.

[0024] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections, direct connections, or indirect connections through an intermediate medium; they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] See also Figures 1 to 3 , Figure 1 This is a schematic diagram of a lifting device connecting a cleaning chassis and a mop assembly according to an embodiment of the present invention; Figure 2 This is a three-dimensional schematic diagram of the connection between the lifting device and the mop assembly according to one embodiment of the utility model; Figure 3 The figure is a schematic diagram of a lifting device according to an embodiment of the present invention. In this embodiment, a lifting device 1 is provided, comprising a first connecting member 10 for connecting to a cleaning chassis 2; a second connecting member 11 for connecting to a mop assembly; and a movable arm 12, the ends of which are hingedly connected to the first connecting member 10 and the second connecting member 11, respectively. The first connecting member 10 is provided with a plurality of first fixing holes 100, each consisting of a through hole 1000 and a fastening hole 1001. The through hole 1000 has a larger diameter than the fastening hole 1001. The first connecting member 10 and the cleaning chassis 2 are fixedly connected by a fastener after being moved from the through hole 1000 to the fastening hole 1001.

[0030] In this embodiment, the first fixing hole 100 can be formed by a combination of a large circle and a small circle with different radii. The diameter of the large circle is larger than the size of the fastener, ensuring that the fastener and the first fixing hole 100 are separated. The diameter of the fastening hole 1001 is smaller than the size of the largest part of the fastener and larger than the size of the fastener body, ensuring that the fastener body can move within the fastening hole 1001. When the fastener is tightened, the fastener can fix the fastening hole 1001. Specifically, the fastener can be a bolt.

[0031] It should be noted that the present application does not impose any specific restrictions on the shape of the first fixing hole 100. It only needs to satisfy the requirement that the diameter of the through hole 1000 is larger than the diameter of the fastening hole 1001. For example, it can also be a hole structure in which the aperture gradually decreases from the through hole 1000 to the fastening hole 1001.

[0032] In the above embodiment, a first fixing hole 100 is provided on the first connecting member 10. When the lifting device 1 and the cleaning chassis 2 need to be installed together, a fastener can be provided or pre-installed on the cleaning chassis 2 first, and then the fastener is moved from the through hole 1000 to the fastening hole 1001 to complete the pre-fixation of the lifting device 1 and the cleaning chassis 2. The fastener is then tightened and combined with multiple sets of fasteners to achieve the fixation of the lifting device 1 and the cleaning chassis 2. The entire process does not require hand support, making the operation easier. Similarly, when the lifting device 1 needs to be removed from the cleaning chassis 2, it is only necessary to loosen the fastener and move the lifting device 1 so that the fastener moves from the fastening hole 1001 to the through hole 1000 to separate the lifting device 1 from the cleaning chassis 2. There is no need to hold the lifting device 1 with one hand, making the disassembly process easier.

[0033] See also Figures 1 to 3 In one embodiment, the movable arm 12 includes a first swing arm 120 and a second swing arm 121 arranged parallel to each other, the two ends of the first swing arm 120 are respectively connected to the first connecting member 10 and the second connecting member 11 through a first rotating shaft 1200 and a second rotating shaft 1201, and the two ends of the second swing arm 121 are respectively connected to the first connecting member 10 and the second connecting member 11 through a third rotating shaft 1202 and a fourth rotating shaft 1203.

[0034] In this embodiment, the first swing arm 120 and the second swing arm 121 are arranged parallel to each other, which can make the movable arm 12 more stable during movement and ensure smooth lifting and lowering. One end of the first swing arm 120 is connected to the first connecting member 10 via a first rotating shaft 1200, and the other end is connected to the second connecting member 11 via a second rotating shaft 1201, so that the first swing arm 120 can rotate between the first connecting member 10 and the second connecting member 11, thereby achieving extension and contraction of the movable arm 12, and in turn driving the mop assembly to lift and lower. One end of the second swing arm 121 is connected to the first connecting member 10 via a third rotating shaft 1202, and the other end is connected to the second connecting member 11 via a fourth rotating shaft 1203. The second swing arm 121 can also rotate between the first connecting member 10 and the second connecting member 11 via these rotating shafts, cooperating with the first swing arm 120 to complete the movement of the lifting device 1.

[0035] See also Figures 1 to 3 In one embodiment, the lifting device 1 also includes a driving mechanism 13, which is fixedly connected to the first connecting member 10. The driving mechanism 13 is connected to the fourth rotating shaft 1203 through a linkage member 15, and the second connecting member 11 is retracted toward the first connection under the linkage of the driving mechanism 13, the linkage member 15 and the fourth rotating shaft 1203.

[0036] In this embodiment, the driving assembly is used to drive the mop assembly connected to the second connecting member 11 to rise.

[0037] In the above embodiment, the drive mechanism 13 is connected to the fourth rotating shaft 1203 via the linkage 15, allowing the drive mechanism 13 to transmit power to the fourth rotating shaft 1203 via the linkage 15. When the drive mechanism 13 is in operation, the second connecting member 11 retracts toward the first connecting member 10 under the coordinated action of the drive mechanism 13, the linkage 15, and the fourth rotating shaft 1203. This retraction action serves to drive the mop assembly connected to the second connecting member 11 upward. Specifically, when the drive mechanism 13 is activated, the linkage 15 drives the fourth rotating shaft 1203 to rotate or move. Because the ends of the movable arm 12 are respectively hinged to the first connecting member 10 and the second connecting member 11, and the first connecting member 10 is relatively fixed, the movement of the fourth rotating shaft 1203 causes the movable arm 12 to change its angle, thereby driving the second connecting member 11 toward the first connecting member 10, thereby causing the mop assembly to rise. Specifically, the linkage 15 in this application may be a chain.

[0038] See also Figures 1 to 3 In one embodiment, the first end of the elastic member 14 is connected to the third rotating shaft 1202, and the other end passes through the first swing arm and is connected to the second rotating shaft 1201.

[0039] In this embodiment, the elastic member 14 is used to provide a certain elastic support, cushioning and restoring force. When the lifting device 1 performs a lifting action, the elastic member 14 can provide a certain elastic support and cushioning, which helps to stabilize the movement of the mop assembly, reduce vibration and impact, and ensure the smooth operation of the lifting device 1.

[0040] In the above embodiment, when the mop assembly needs to be lowered, the drive mechanism 13 stops driving the mop assembly upward. At this point, the linkage member 15 is a flexible member such as a chain. Without a continuous external force, the elastic member 14 gradually returns to its original state from its stretched state. The restoring force of the elastic member 14 pulls the first swing arm 120 and the second swing arm 121, causing the second connecting member 11 to move away from the first connecting member 10, thereby opening the first and second connecting members 10, 11 and lowering the mop assembly. Furthermore, due to the gravity of the mop assembly itself, a downward pulling force is exerted on the second connecting member 11. This pulling force is transmitted through the movable arm 12, overcoming some of the resistance of the drive mechanism 13 or, when the drive mechanism 13 is not providing upward force, causing the second connecting member 11 to move away from the first connecting member 10, further lowering the lifting device 1 and opening the first and second connecting members 10, 11.

[0041] See also Figures 1 to 3 In one embodiment, the telescopic member is movably connected to the fixed member, the fixed member is connected to the first connecting member 10, and one end of the telescopic member is connected to the fourth rotating shaft 1203 through the linkage member 15.

[0042] In this embodiment, the telescopic member is movably connected to the fixed member, meaning that the telescopic member can telescope relative to the fixed member. This movable connection allows the telescopic member to change length under the action of the drive mechanism 13, thereby generating power to drive the movement of the lifting device 1. The fixed member is fixed to the first connecting member 10, ensuring the relatively stable position of the drive mechanism 13 within the entire lifting device 1. Through its connection to the first connecting member 10, the drive mechanism 13 can transmit power to the movable arm 12, thereby affecting the position of the second connecting member 11 and the mopping assembly.

[0043] Specifically, a cross bar is provided on one side of the driving mechanism 13 close to the driving end, and the driving end of the driving mechanism 13 moves outward or inward to perform linear motion to lift the second connecting member 11 .

[0044] See also Figures 1 to 3 In one embodiment, the first connecting member 10 , the second connecting member 11 , the first swing arm 120 and the second swing arm 121 are also provided with weight-reducing holes 1002 .

[0045] In this embodiment, the overall weight of the lifting device 1 is reduced. For a lifting device 1 used in equipment such as a sweeper, the lighter weight can reduce energy consumption and improve operational efficiency and flexibility. For example, during the movement of the sweeper, the lighter lifting device 1 does not place an excessive burden on the sweeper's power system, allowing the sweeper to move and turn more easily.

[0046] On the other hand, the provision of weight-reducing holes 1002 can optimize the structural design of the component to a certain extent. By rationally arranging weight-reducing holes 1002, the center of gravity distribution of the component can be adjusted, improving structural stability without compromising the component's strength and functionality. Furthermore, weight-reducing holes 1002 can enhance the component's aesthetics, making the lifting device 1 appear more concise and refined.

[0047] See also Figures 1 to 3 In one embodiment, the first connecting member 10 includes a first mounting portion 102101 and a first connecting portion, the second connecting member 11 includes a second mounting portion 110 and a second connecting portion 111, and the first connecting portion and the second connecting portion 111 are connected through a movable arm 12.

[0048] In this embodiment, the first mounting portion 102101 and the second mounting portion 110 are used to connect to the cleaning chassis 2 and the mop assembly, respectively. The first connecting portion and the second connecting portion 111 are connected by a movable arm 12, forming a movable structural system, so that the mop assembly can be raised and lowered as needed. When the lifting device 1 is working, it cooperates with the first connecting portion to realize the lifting and lowering action of the mop assembly relative to the cleaning chassis 2.

[0049] Furthermore, the first fixing hole 100 is provided on the first mounting portion 102101. Through these first fixing holes 100 on the first mounting portion 102101, the first connector 10 can be connected and fixed to the cleaning chassis 2. The first fixing hole 100 is composed of a through hole 1000 and a fastening hole 1001. The aperture of the through hole 1000 is larger than the aperture of the fastening hole 1001. This design is convenient for installation. First, a fastener (such as a bolt, etc.) is inserted through the through hole 1000 with a larger aperture, and then the fastener is moved to the fastening hole 1001 for fixing. Such a structural design makes the connection between the first connector 10 and the cleaning chassis 2 more stable and reliable, and also facilitates installation and disassembly operations. At the same time, in order to further fix the first connector 10 and the cleaning chassis 2, multiple groups of fastening bolts and threaded holes are also provided to ensure that the lifting assembly and the cleaning chassis 2 are fixed.

[0050] The present application also provides a sweeping machine, comprising a lifting device 1 and a cleaning chassis 2 as described above, wherein a limiting member 20 is provided on the cleaning chassis 2, and the limiting member 20 is provided at one end of the lifting device 1 for limiting the movement of the lifting device 1 relative to the limiting member 20.

[0051] In this embodiment, when the lifting device 1 is fixed to the cleaning chassis 2 only through the first fixing hole 100 and the bolts, when the lifting device 1 is disturbed by external forces during the ascent or descent process, a lateral displacement trend may occur. At this time, the limiter 20 will block this lateral movement, ensuring that the lifting device 1 can only be lifted and lowered in the designed direction. The lifting device 1 is fixed to the cleaning chassis 2 through the first fixing hole 100 and the threaded hole respectively. When disassembly is required, the limiter 20 provides a clear installation position reference for the lifting device 1, ensuring that the lifting device 1 can be accurately connected to the cleaning chassis 2 during installation. When performing the installation operation, due to the presence of the limiter 20, the lifting device 1 can only be installed in a specific direction and position, avoiding positional deviations that may occur during the installation process. During the disassembly process, the limiter 20 limits the movement range of the lifting device 1, preventing the lifting device 1 from accidentally moving when disassembling other components and affecting the smooth progress of the disassembly operation. At the same time, the connection between the limiting member 20 and the cleaning chassis 2 is relatively stable and can withstand a certain external force, thereby constraining the lifting device 1 during the disassembly and assembly process, ensuring the safety and accuracy of the disassembly and assembly process.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A lifting device, characterized in that: include: a first connecting member, the first connecting member being used to connect to the cleaning chassis; a second connecting member, the second connecting member being used to connect to the mop assembly; a movable arm, wherein both ends of the movable arm are hinged to the first connecting member and the second connecting member respectively; The first connecting member is provided with a plurality of first fixing holes, which are composed of a through hole and a fastening hole. The aperture of the through hole is larger than the aperture of the fastening hole. The first connecting member and the cleaning chassis are fixedly connected after being moved from the through hole to the fastening hole by the fastener.

2. The lifting device according to claim 1, characterized in that: The movable arm includes a first swing arm and a second swing arm arranged parallel to each other, the two ends of the first swing arm are connected to the first connecting member and the second connecting member respectively through a first rotating shaft and a second rotating shaft, and the two ends of the second swing arm are connected to the first connecting member and the second connecting member respectively through a third rotating shaft and a fourth rotating shaft.

3. The lifting device according to claim 2, characterized in that: It also includes a driving mechanism, which is fixedly connected to the first connecting member. The driving mechanism is connected to the fourth rotating shaft through a linkage member. The second connecting member is retracted toward the first connection under the linkage of the driving mechanism, the linkage member and the fourth rotating shaft.

4. The lifting device according to claim 2, characterized in that: It also includes an elastic member, a first end of which is connected to the third rotating shaft, and the other end of which passes through the first swing arm and is connected to the second rotating shaft.

5. The lifting device according to claim 3, characterized in that: The driving mechanism includes a fixed part and a telescopic part. The telescopic part is movably connected to the fixed part. The fixed part is connected to the first connecting part. One end of the telescopic part is connected to the fourth rotating shaft through a linkage part.

6. The lifting device according to claim 2, characterized in that: The first connecting member, the second connecting member, the first swing arm and the second swing arm are also provided with weight-reducing holes.

7. The lifting device according to claim 1, characterized in that: The first connecting member includes a first mounting portion and a first connecting portion, the second connecting member includes a second mounting portion and a second connecting portion, and the first connecting portion and the second connecting portion are connected through a movable arm.

8. The lifting device according to claim 7, characterized in that: The first fixing hole is provided on the first mounting portion.

9. A sweeping machine, characterized in that: The invention comprises the lifting device according to any one of claims 1 to 5.

10. The sweeping machine according to claim 9, characterized in that: It also includes a cleaning chassis, on which a limiting member is provided. The limiting member is provided at one end of the lifting device and is used to limit the movement of the lifting device relative to the limiting member.

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