Leveling driving assembly, cleaning equipment and leveling control system

Abstract

The utility model is suitable for the technical field of household appliances, and provides a leveling driving assembly, cleaning equipment and a leveling control system.The leveling driving assembly comprises a supporting base, a power piece and a wrench piece, the power piece and the wrench piece are arranged on the supporting base and connected, and the wrench piece is provided with a first opening formed in the radial direction of the wrench piece; the first opening is used for containing a second threaded piece of the foot margin assembly, and the power piece is used for driving the wrench piece to rotate around the central axis. The spanner piece of the leveling driving assembly can rotate the foot margin assembly of the cleaning equipment on the lower side of the cleaning equipment, an operator does not need to manually stretch into a limited space below the cleaning equipment for manual operation, and the leveling efficiency of the cleaning equipment is improved.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a leveling drive assembly, cleaning equipment, and leveling control system. Background Technology

[0002] Currently, various devices, including but not limited to household appliances, should be installed in specific orientations. For example, household appliances such as washing machines and dryers should be installed horizontally; otherwise, the center of gravity of the drum will shift during rotation, resulting in vibration, noise, and even accelerated wear of components.

[0003] In existing equipment, bottom leveling is done manually, with different feet adjusted separately. The limited space at the bottom of the equipment makes operation difficult and also results in low adjustment efficiency, as different feet often require repeated adjustments. Utility Model Content

[0004] The purpose of this application is to provide a leveling drive component, which aims to provide an efficient and convenient leveling solution.

[0005] The embodiments of this application are implemented as follows: a leveling drive assembly includes a support base, and a power component and a wrench component disposed on and connected to the support base. The wrench component has a first opening opened radially thereon, and the power component is used to drive the wrench component to rotate about its central axis.

[0006] In some embodiments, the leveling drive assembly further includes a transmission assembly connected between the power component and the wrench component in a direction perpendicular to the central axis of the wrench component.

[0007] In some embodiments, the transmission assembly includes a first gear connected to the power component, and a second gear and a third gear meshing with the first gear. The second gear and the third gear also mesh with the wrench component. A first line connects the center point of the second gear to the center point of the wrench component, and a second line connects the center point of the third gear to the center point of the wrench component. The included angle between the first line and the second line is greater than the central angle corresponding to the first opening.

[0008] In some embodiments, the support base includes a first base and a second base connected along the central axis of the wrench, the first base and the second base having a second opening aligned along the central axis of the wrench and used to avoid the first opening.

[0009] In some embodiments, the inner side of the second opening includes a guide surface that is outwardly flared along a direction perpendicular to the central axis of the wrench.

[0010] In some embodiments, the guide surface includes a first guide surface and a second guide surface, the first guide surface and the second guide surface having a first included angle between the opening direction of the first guide surface and the opening direction of the second opening, and the second guide surface having a second included angle between the opening direction of the second opening, wherein the first included angle and the second included angle are not equal.

[0011] In some embodiments, the output shaft of the power component is parallel to the central axis of the wrench component; the output shaft of the power component passes through the first base and is connected to the transmission assembly.

[0012] Another objective of this application is to provide a cleaning device, which includes:

[0013] The housing includes a base plate;

[0014] A base assembly, comprising a first threaded member and a second threaded member; the first threaded member and the second threaded member are threadedly engaged; the first threaded member is connected to the base plate via a circumferential anti-rotation structure; the second threaded member is rotatable relative to the first threaded member and drives the base plate to move axially along the first threaded member; and

[0015] As described in the above embodiments, the leveling drive assembly has a first opening for accommodating the second threaded component, thereby driving the second threaded component to rotate and causing the base plate to move axially along the first threaded component.

[0016] In some embodiments, the first threaded component has an external thread, and the second threaded component has an internal thread; the base plate is provided with a through hole, and the first threaded component is disposed in the through hole along its axial direction.

[0017] In some embodiments, the circumferential anti-rotation structure includes a thread avoidance section disposed on the first threaded member along its axial direction, and a mating section disposed on the inner wall of the through hole that is adapted to the thread avoidance section.

[0018] In some embodiments, the second threaded member includes a second threaded portion and an abutment portion, the second threaded portion being used to engage with the first threaded member, and the abutment portion being disposed at one end of the second threaded portion facing the base plate, the abutment portion abutting against one side surface of the base plate.

[0019] In some embodiments, the foot assembly further includes a bracket and a friction plate, the bracket being fixedly connected to the base plate and having a bearing surface facing the base plate, the abutment portion being disposed between the bearing surface and the base plate along the axial direction of the first threaded member, and the friction plate being disposed between the bearing surface and the abutment portion along the axial direction of the first threaded member.

[0020] Another objective of this application is to provide a leveling control system, which includes a leveling drive assembly, a controller, and a level detector as described in the above embodiments. The level detector is connected to the device to be leveled and is used to detect the horizontal tilt angle of the device to be leveled. The controller is communicatively connected to the level detector and the power component, respectively, and is used to control the power component according to the horizontal tilt angle of the device to be leveled.

[0021] The leveling drive assembly, cleaning equipment, and leveling control system provided in this application have the following advantages:

[0022] The leveling drive assembly provided in this application embodiment has a wrench with a first opening. The wrench can be placed in the space below the equipment to be leveled and rotate the foot assembly of the equipment to be leveled. This eliminates the need for operators to manually reach into the limited space below the equipment to be leveled and improves the leveling efficiency of the cleaning equipment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional assembly diagram of the foot assembly on the base plate in the cleaning equipment provided in this application embodiment;

[0025] Figure 2 This is a three-dimensional exploded view of the foot assembly relative to the base plate in the cleaning equipment provided in the embodiments of this application;

[0026] Figure 3 This is a schematic axial cross-sectional view of the foot assembly on the base plate in the cleaning equipment provided in this application embodiment;

[0027] Figure 4 This is a three-dimensional assembly schematic diagram of the leveling drive component in the cleaning equipment provided in the embodiments of this application;

[0028] Figure 5 This is a top view of the leveling drive assembly in the cleaning equipment provided in this application embodiment;

[0029] Figure 6 This is a top view of the leveling drive assembly in the cleaning device provided in the embodiment of this application, wherein the first seat is removed and the first opening is aligned with the second opening;

[0030] Figure 7This is a top view of the leveling drive assembly in the cleaning device provided in the embodiment of this application, wherein the first seat is removed and the first opening and the second opening are not aligned;

[0031] Figure 8 This is an axial cross-sectional schematic diagram of the leveling drive assembly in the cleaning equipment provided in the embodiments of this application;

[0032] Figure 9 This is an exploded perspective view of the leveling drive component in the cleaning equipment provided in the embodiments of this application;

[0033] Figure 10 This is a three-dimensional perspective view of the cleaning equipment provided in the embodiments of this application in its usage state;

[0034] Figure 11 This is another perspective view of the cleaning equipment in use provided in the embodiments of this application;

[0035] Figure 12 This is a top view of the cleaning equipment provided in the embodiments of this application, showing its usage status;

[0036] Figure 13 This is a schematic diagram of the cleaning equipment provided in the embodiments of this application, which mainly shows the fit between the second threaded part and the first opening;

[0037] Figure 14 This is a schematic axial cross-sectional view of the cleaning equipment provided in the embodiments of this application;

[0038] Figure 15 This is a simplified structural diagram of the cleaning equipment provided in the embodiments of this application.

[0039] The markings in the diagram mean:

[0040] 100 - Cleaning equipment; 101 - Housing; 102 - Base plate;

[0041] 200-Leveling control system, 9-Controller, 8-Level detector;

[0042] 2-Foot assembly, 201-Through hole, 2010-Matching facet, 21-First threaded part, 211-Support part, 212-First threaded part, 2120-Threaded clearance facet, 22-Second threaded part, 221-Abutting part, 222-Second threaded part, 23-Bracket, 230-Gap, 231-Connecting part, 232-Extension part, 233-Bearing part, 2330-Bearing surface, 24-Friction pad;

[0043] 3-Leveling drive assembly, 30-Transmission assembly, 31-First gear, 32-Second gear, 33-Third gear, 34-Fourth gear, 35-Fifth gear;

[0044] 36-Support base; 360-Second opening; 3601-First guide surface; 3602-Second guide surface; 361-First seat body; 362-Second seat body; 363-Mounting slot; 37-Power component; 38-Wrench component; 380-First opening; 39-Position detection component; 391-First bushing; 3910-Sensed part; 392-Sensing component; 3921-Transmitter; 3922-Receiver; 395-Second bushing;

[0045] A1 - First axis line, A2 - Second axis line, A3 - Third axis line, L1 - First connecting line, L2 - Second connecting line;

[0046] X - length direction, Y - width direction, Z - height direction. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of 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 not intended to limit the scope of this application.

[0048] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly fixed to or set on that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the purpose of description, and do not 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 patent. The terms "first" and "second" are used only for the purpose of description and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly specified.

[0049] In the description of this application, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can mean A or B. "And / or" in this application is merely a description of the relationship between the related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be single or multiple. Furthermore, in the description of this application, "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, and c can represent: a, b, c, a+b, a+c, b+c, a+b+c, where a, b, and c can be single or multiple. As another example, at least one of a, b, or c can represent: a, b, c, a+b, a+c, b+c, a+b+c, where a, b, and c can be single or multiple.

[0050] To illustrate the technical solutions described in this application, the following detailed description is provided in conjunction with specific drawings and embodiments.

[0051] like Figure 1 , Figure 4 , Figure 10 and Figure 14 As shown, this application embodiment first provides a cleaning device 100, which includes a housing 101 and a foot assembly 2. The foot assembly 2 is disposed at the bottom of the housing 101, specifically on the lower side of the housing 101 along the vertical direction. By adjusting the height of the foot assembly 2, the housing 101 is adjusted to the desired position. In this application embodiment, the housing 101 includes a base plate 102, and the foot assembly 2 is disposed on the base plate 102 and used to adjust the base plate 102 to be horizontal. That is, multiple foot assemblies 2 maintain the same position in the vertical direction so that the base plate 102 remains horizontal.

[0052] like Figure 1 , Figure 4 and Figure 10 As shown, in some embodiments of this application, the cleaning device 100 further includes a leveling drive assembly 3. The leveling drive assembly 3 is used to connect with the foot assembly 2 and adjust the height of the foot assembly 2. The leveling drive assembly 3 is used in conjunction with the foot assembly 2. It is understood that other methods can also be used to adjust the height of the foot assembly 2.

[0053] Next, the cleaning device 100 and its foot assembly 2 and leveling drive assembly 3 of the embodiments of this application will be described in detail.

[0054] like Figure 2As shown, the foot assembly 2 includes a first threaded member 21 and a second threaded member 22, which are threadedly engaged. Since the first threaded member 21 and the second threaded member 22 are threadedly engaged, their central axes coincide, which are collectively defined as the first axis A1. When the second threaded member 22 rotates relative to the first threaded member 21, it can simultaneously move relative to the first threaded member 21 along the first axis A1.

[0055] The base plate 102 is slidably connected to the first threaded member 21 along the first axis A1. Furthermore, in the circumferential direction of the first threaded member 21, the base plate 102 and the first threaded member 21 are circumferentially fixedly connected by a circumferential anti-rotation structure. The base plate 102 is also used to abut against the second threaded member 22.

[0056] In some embodiments of this application, the first threaded member 21 can be directly slidably connected to the base plate 102, or the first threaded member 21 can be slidably connected to the base plate 102 via a connecting member (such as another connecting plate). For example, the foot assembly 2 further includes a connecting plate (not shown), the first threaded member 21 is slidably connected to the connecting plate along the first axis A1, and the connecting plate is fixedly connected to the base plate 102. The foot assembly 2 is thus fixedly mounted on the base plate 102 by the fixed connection between the connecting plate and the base plate 102. In an optional embodiment, as shown... Figure 3 , Figure 10 and Figure 14 As shown, in some embodiments of this application, the first threaded member 21 passes through the base plate 102.

[0057] like Figure 4 , Figure 8 As shown, the leveling drive assembly 3 includes a support base 36, and a power component 37 and a wrench component 38 disposed on and connected to the support base 36, as follows: Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the wrench member 38 has a first opening 380 that is radially formed therein. The first opening 380 is used to receive the second threaded member 22, and the power member 37 is used to drive the wrench member 38 to rotate about its central axis.

[0058] The first opening 380 is configured such that when the second threaded component 22 is located within the first opening 380, it can remain coaxial with the wrench component 38. That is, the central axis of the wrench component 38 (defined here as the first axis A2) coincides with the aforementioned first axis A1. Figure 12 As shown. Therefore, the wrench 38 can drive the second threaded part 22 to rotate, the second threaded part 22 can drive the base plate 102 to move along the first axis A1, and the base plate 102 can further drive the base plate 102 to move relative to the first threaded part 21 along the first axis A1.

[0059] The cleaning device 100 has a mounting surface during installation and use. This mounting surface can be a floor, countertop, desktop, cabinet surface, bracket surface, etc. When the lower end of the first threaded component 21 abuts against the mounting surface, the first threaded component 21 remains stationary relative to the mounting surface. The base plate 102 can be moved upwards by the leveling drive assembly 3. Thus, by adjusting the height of the several foot assemblies 2 at the bottom of the cleaning device 100, the entire cleaning device 100 can be adjusted to a horizontal position.

[0060] In the cleaning device 100 and its leveling drive assembly provided in this application embodiment, the wrench part 38 of the leveling drive assembly 3 is provided with a first opening 380 that mates with the second threaded part 22, allowing the wrench part 38 of the leveling drive assembly 3 to rotate the second threaded part 22 on the underside of the base plate 102, such as... Figure 13 As shown, it eliminates the need for operators to manually reach into the limited space below the housing 101 for manual operation, while also improving the leveling efficiency of the cleaning equipment 100.

[0061] It should be noted that in this cleaning device 100, multiple foot components 2 can be provided on the base plate 102. For example, multiple foot components 2 can be provided at the front end of the base plate 102, multiple foot components 2 can be provided at the rear end of the base plate 102, or foot components 2 can be provided at the four corners of the base plate 102. In some embodiments, foot components 2 can also be provided in the middle of the base plate 102.

[0062] In this cleaning device 100, the number of leveling drive components 3 can be one or more. When there is only one leveling drive component 3, each foot component 2 can be adjusted sequentially. Taking the initial height of the second threaded part 22 in each foot component 2 as an example, to ensure that the height adjustment amount of each foot component 2 is consistent, the action information of the power component 37 in the leveling drive component 3 can be recorded for each adjustment. That is, as long as the action information of the power component 37 in the leveling drive component 3 is consistent for each adjustment process, the height adjustment amount of each foot component 2 can be kept consistent. When there are multiple leveling drive components 3, at least two leveling drive components 3 can operate simultaneously. As long as the action information of the leveling drive components 3 is consistent, the height adjustment amount of the corresponding foot component 2 can be kept consistent. Optionally, the number of leveling drive components 3 is the same as the number of foot components 2, and the leveling drive components 3 and foot components 2 are connected in a one-to-one correspondence. This further improves the leveling efficiency of the cleaning device 100 and its foot components 2, avoiding multiple and repeated adjustments of multiple foot components 2.

[0063] In some embodiments of this application, the foot assembly 2 is respectively provided at the front end of the base plate 102. Optionally, the foot assembly 2 is respectively provided on both sides of the front end of the base plate 102, and the two foot assemblies 2 are respectively connected to a leveling drive assembly 3. The two leveling drive assemblies 3 operate simultaneously to control the two foot assemblies 2 to simultaneously drive the front end of the base plate 102 to rise and fall, so that the cleaning device 100 remains horizontal in the front-back direction.

[0064] In some embodiments of this application, such as Figure 15 As shown, the cleaning equipment 100 includes a housing 101, one or more leveling feet assemblies 2 disposed at the bottom of the housing 101, and a leveling control system 200. The leveling control system 200 is used to adjust the height of the leveling feet assemblies 2.

[0065] Specifically, the leveling control system 200 includes the aforementioned leveling drive assembly 3, which is used to connect to the foot assembly 2 and adjust the height of the foot assembly 2. Specifically, the leveling drive assembly 3 is used to control the rotation of the second threaded component 22.

[0066] In some embodiments of this application, such as Figure 15 As shown, the leveling control system 200 also includes a controller 9 and a level detector 8. The level detector 8 is connected to the housing 101 and is used to detect the horizontal tilt angle of the base plate 102. The controller 9 is communicatively connected to the level detector 8 and the leveling drive assembly 3. Specifically, the controller 9 is communicatively connected to the power component 37 in the leveling drive assembly 3. The controller 9 can receive the horizontal tilt angle information detected by the level detector 8 and controls the power component 37 to move according to the horizontal tilt angle information of the base plate 102. When the horizontal tilt angle of the base plate 102 is not 0, the controller 9 sends control information to the power component 37 to control the power component 37 to move, thereby controlling the base plate 102 and the base plate 102 to move upwards until the horizontal tilt angle of the base plate 102 is 0, at which point the controller 9 controls the power component 37 to stop moving.

[0067] Understandably, after the leveling bracket 2 is adjusted, it remains on the base plate 102 of the cleaning device 100, and the leveling drive component 3 needs to disengage from the second threaded component 22. During the use of the cleaning device 100, the leveling drive component 3 separates from the device housing 101.

[0068] In some embodiments of this application, the cleaning device 100 can be any device that has a leveling component 2 and requires leveling, including but not limited to washing machines, dryers, washer-dryer combos, shoe washers, dishwashers, etc.

[0069] In some embodiments of this application, the first threaded component 21 and the second threaded component 22 are threadedly engaged. Either the first threaded component 21 is fitted onto the second threaded component 22, or the second threaded component 22 is fitted onto the first threaded component 21. The wrench component 38 is sufficient to form a connection with the second threaded component 22 and drive the second threaded component 22 to rotate.

[0070] like Figure 2 and Figure 3 As shown, in some embodiments of this application, the first threaded member 21 has an external thread, and the second threaded member 22 has an internal thread. The second threaded member 22 is sleeved on the first threaded member 21 and engages with the external thread of the first threaded member 21. The purpose of this arrangement is that the second threaded member 22 is located on the outer periphery of the first threaded member 21, making it convenient to engage with the first opening 380 of the wrench member 38.

[0071] like Figure 2 As shown, the base plate 102 is provided with a through hole 201 extending vertically, and the first threaded component 21 is provided in the through hole 201 along the direction of the first axis A1.

[0072] The base plate 102 and the first threaded member 21 are slidably connected along the first axis A1. In the circumferential direction of the first threaded member 21, the base plate 102 and the first threaded member 21 remain relatively stationary through the circumferential anti-rotation structure. That is, when the second threaded member 22 rotates around the first threaded member 21, the base plate 102 will not rotate relative to the first threaded member 21.

[0073] like Figure 2 As shown, in some embodiments of this application, the circumferential anti-rotation structure includes a thread avoidance surface 2120 disposed on the first threaded member 21 along the first axis A1 direction, and a mating surface 2010 disposed on the inner wall of the through hole 201 and adapted to the thread avoidance surface 2120. This makes the inner wall of the through hole 201 a non-annular surface and the outer periphery of the first threaded member 21 a non-annular surface, thereby allowing the base plate 102 to remain circumferentially stationary with respect to the first threaded member 21.

[0074] The number of thread avoidance facets 2120 is unlimited; there can be one or more, and they are spaced apart circumferentially along the first threaded part 21.

[0075] like Figure 2 and Figure 3As shown, in some embodiments of this application, the first threaded member 21 includes a first threaded portion 212 and a support portion 211. The first threaded portion 212 is used to engage with the second threaded member 22, and the support portion 211 is disposed at one end of the first threaded portion 212. The outer dimension of the support portion 211 is larger than the outer dimension of the first threaded portion 212. In specific applications, the support portion 211 is used to abut against the mounting plane so that the first threaded member 21 has a large contact area with the mounting plane. Furthermore, through the mutual contact between the support portion 211 and the mounting plane (default is a horizontal plane), the first threaded portion 212 can be held vertically. In addition, the support portion 211 can define the extreme position for the downward movement of the second threaded member 22. In some cases, this extreme position can be used as the initial position of the second threaded member 22. Starting from the position where the second threaded member 22 abuts against the support portion 211, when different second threaded members 22 move upward by the same distance, it indicates that the base plates 102 of different foot assemblies 2 are at the same height.

[0076] like Figure 2 and Figure 3 As shown, in some embodiments of this application, the second threaded component 22 includes a second threaded portion 222 and an abutment portion 221. The abutment portion 221 is disposed at one end of the second threaded portion 222 facing the base plate 102. The second threaded portion 222 is used to engage with the first threaded component 21. The abutment portion 221 abuts against one side surface of the base plate 102, and the outer dimension of the abutment portion 221 is larger than the outer dimension of the second threaded portion 222. The purpose of this arrangement is that the abutment portion 221 and the base plate 102 have a large contact area, which is beneficial for maintaining a stable relative rotation between the base plate 102 and the second threaded component 22. Furthermore, the second threaded component 22 can smoothly push the base plate 102 to move along the first axis A1, avoiding the base plate 102 from shifting or jamming relative to the first threaded component 21 and the second threaded component 22 during the movement.

[0077] like Figure 1 , Figure 2 As shown, in some embodiments of this application, the foot assembly 2 further includes a bracket 23 and a friction plate 24. The bracket 23 is fixedly connected to the base plate 102, and the bracket 23 has a bearing surface 2330 facing the base plate 102. The abutment portion 221 is disposed between the bearing surface 2330 and the base plate 102 along the first axis A1, and the friction plate 24 is disposed between the bearing surface 2330 and the abutment portion 221 along the first axis A1. Figure 3As shown, in the vertical direction, the friction plate 24 is located between the lower surface of the abutment portion 221 and the bearing surface 2330. When the abutment portion 221 of the second threaded member 22 rotates, the friction plate 24 generates frictional force on it. The purpose of this arrangement is to increase the frictional force between the second threaded member 22 and the base plate 102, prevent the second threaded member 22 from rotating in the opposite direction, and thus prevent the second threaded member 22 from falling off or loosening from the first threaded member 21, ensuring that the entire cleaning device 100 can stably maintain a horizontal position.

[0078] The form of the friction plate 24 is not limited, as long as it can provide resistance to the rotation of the second threaded member 22. In some alternative embodiments, the friction is a flexible pad compressed between the lower surface of the abutment portion 221 and the bearing surface 2330. In some alternative embodiments, the friction plate 24 is a rigid pad disposed between the lower surface of the abutment portion 221 and the bearing surface 2330 with a slight interference fit.

[0079] In some embodiments, the friction pad 24 can be a combination of a rigid pad and a flexible pad, such as a laminated combination. In some embodiments, the surface of the friction pad 24 can be a flat surface.

[0080] In some embodiments, at least one surface of the friction pad 24 is provided with friction protrusions, which abut against the lower surface of the contact portion 221 and / or the bearing surface 2330 with a certain pressure.

[0081] like Figure 2 and Figure 3 As shown, the bracket 23 includes an extension 232 and a support 233. The extension 232 is connected to the side surface of the base plate 102 facing the second threaded member 22 and extends along the first axis A1. The support 233 is connected to the end of the extension 232 away from the base plate 102 and extends toward the second threaded member 222 in a direction perpendicular to the first axis A1. The support 233 has a through clearance hole to allow passage of the second threaded member 222. In the direction of the first axis A1, a gap 230 is formed between the support 233 and the base plate 102, and the abutment portion 221 and the friction plate 24 are both disposed within this gap 230. The purpose of this arrangement is that the extension 232 surrounds the friction plate 24, forming a restriction on the friction plate 24 in all horizontal directions, which can prevent the friction plate 24 from disengaging between the abutment portion 221 and the support 233.

[0082] In some embodiments of this application, the bracket 23 and the base plate 102 are manufactured separately and then connected. For example, the bracket 23 and the base plate 102 are fixed together by welding or screw locking.

[0083] In some alternative embodiments, such as Figure 2 and Figure 3As shown, the bracket 23 also includes a connecting portion 231, which is connected to the end of the extension 232 near the base plate 102 and is fixedly connected to the surface of the base plate 102 facing the second threaded member 22. This arrangement is intended to provide a larger area for the connecting portion 231 in the direction perpendicular to the first axis A1, thus facilitating the fixed connection of the extension 232 to the base plate 102. Optionally, the connecting portion 231 can be fixed to the surface of the base plate 102 facing the second threaded member 22 by welding or screw fastening.

[0084] In other alternative embodiments, where permissible, the bracket 23 and the base plate 102 may be integrally formed, for example, integrally injection molded or integrally stamped.

[0085] Next, as Figures 3 to 8 As shown, the leveling drive component 3 is described in detail.

[0086] In some embodiments of the base plate 102, such as Figure 10 , Figure 11 and Figure 12 As shown, the leveling drive assembly 3 also includes a transmission assembly 30, which is connected between the power component 37 and the wrench component 38. The transmission assembly 30 enables the torque of the power component 37 to be transmitted to the wrench component 38, and allows the power component 37 to avoid the base plate 102 and the housing 101 of the cleaning equipment 100. Figure 10 , Figure 11 and Figure 12 As shown.

[0087] like Figures 4 to 8 As shown, in some embodiments of this application, the output shaft of the power component 37 (defined herein as having a third axis A3) is parallel to the central axis of the wrench component 38, that is, parallel to the second axis A2. In the direction perpendicular to the second axis A2, the power component 37 and the wrench component 38 are arranged side-by-side, while in the direction of the second axis A2, the wrench component 38 needs to be located on the underside of the base plate 102. Figure 6 , Figure 7 and Figure 9 As shown. In the direction perpendicular to the second axis A2, the transmission assembly 30 is located between the power component 37 and the wrench component 38.

[0088] like Figure 6 As shown, in some embodiments of this application, the transmission assembly 30 includes a first gear 31, and a second gear 32 and a third gear 33 meshing with the first gear 31. The second gear 32 and the third gear 33 also mesh with the wrench component 38. The first gear 31 is used to connect with the power component 37, such as... Figure 9As shown. In some optional embodiments, the central axes of the first gear 31, the second gear 32, and the third gear 33 are all parallel to the central axis of the wrench member 38. Therefore, in a direction perpendicular to the second axis A2, the first gear 31, the second gear 32, and the third gear 33 are arranged side by side on one side of the wrench member 38. Wherein, as... Figure 6 and Figure 7 As shown, the center point of the second gear 32 is connected to the center point of the wrench 38 by a first line L1, and the center point of the third gear 33 is connected to the center point of the wrench 38 by a second line L2. The included angle α between the first line L1 and the second line L2 is greater than the central angle β corresponding to the first opening 380.

[0089] The purpose of this arrangement is that at any given time, at least one of the second gear 32 and the third gear 33 can engage with the wrench member 38. That is, the second gear 32 and the third gear 33 will not simultaneously be located at the first opening 380 of the wrench member 38. This allows the wrench member 38 to rotate 360° and more without being affected by the first opening 380. The wrench member 38 can rotate at least one revolution, thus the adjustment stroke of the second threaded member 22 and the base plate 102 in the height direction Z is not affected by the first opening 380.

[0090] In some embodiments, the central angle β corresponding to the first opening 380 is related to the shape of the outer peripheral surface of the second threaded portion 222 of the second threaded member 22. The shape of the outer peripheral surface of the second threaded portion 222 can be varied, as long as it can enter the second opening 360 and be rotated by the wrench member 38. In some optional embodiments, the outer peripheral surface of the second threaded portion 222 is a regular hexagon, in which case the central angle β corresponding to the first opening 380 is 60°. Alternatively, in other optional embodiments, the outer peripheral surface of the second threaded portion 222 is a regular quadrilateral, in which case the central angle β corresponding to the first opening 380 is 90°. In still other optional embodiments, the outer peripheral surface of the second threaded portion 222 is a regular pentagon, in which case the central angle β corresponding to the first opening 380 can be 60° or 120°. In many other optional embodiments, the outer peripheral surface of the second threaded portion 222 can have other shapes.

[0091] In some embodiments of this application, the central angle β corresponding to the first opening 380 is less than or equal to 90 degrees. The purpose of this arrangement is twofold: first, to minimize the missing portion of the wrench component 38 (the portion where the first opening 380 is located), thus ensuring the overall strength of the wrench component 38; second, to minimize the included angle α between the first connecting line L1 and the second connecting line L2, and further, to minimize the distance between the second gear 32 and the third gear 33. Figure 8As shown, assuming that the direction from the wrench 38 to the power component 37 is the length direction X of the leveling drive assembly 3, then the direction of the line connecting the second gear 32 and the third gear 33 is the width direction Y of the leveling drive assembly 3. This ensures that the width of the leveling drive assembly 3 is as small as possible.

[0092] like Figure 6 , Figure 7 and Figure 9 As shown, in some embodiments of this application, the transmission assembly 30 further includes a fourth gear 34, which meshes with the side of the first gear 31 opposite to the wrench member 38. The fourth gear 34 is connected to the power member 37. This arrangement aims to increase the distance between the power member 37 and the wrench member 38 along the length X direction of the leveling drive assembly 3, allowing the power member 37 to further avoid the base plate 102 and the housing 101. Simultaneously, it reduces the diameter of the first gear 31, resulting in a narrower width for the leveling drive assembly 3.

[0093] In some alternative embodiments, such as Figure 9 As shown, the fourth gear 34 is coaxially connected to the power component 37. The fourth gear 34 serves as the driving gear that directly transmits the torque of the power component 37.

[0094] like Figure 6 , Figure 7 and Figure 9 As shown, in some embodiments of this application, the transmission assembly 30 further includes a fifth gear 35, which meshes between the side of the first gear 31 facing away from the wrench member 38 and the fourth gear 34. The purpose of this arrangement is to further increase the distance between the power member 37 and the wrench member 38 in the length direction X of the leveling drive assembly 3, so that the power member 37 can further avoid the base plate 102 and the housing 101. At the same time, the diameters of the first gear 31 and the fourth gear 34 can be reduced without increasing the width of the leveling drive assembly 3.

[0095] In other alternative embodiments, meshing transmission gears may be added between the fourth gear 34 and the fifth gear 35 and / or between the fifth gear 35 and the first gear 31, so that the length and width of the leveling drive assembly 3 can be adapted to the position of more cleaning equipment 100 foot assemblies 2, and have suitable transmission efficiency.

[0096] In some alternative embodiments, such as Figure 6As shown, a third line L3 connects the center point of the wrench component 38, the center point of the first gear 31, the center point of the fourth gear 34, and the center point of the fifth gear 35. This arrangement aims to make the components within the leveling drive assembly 3 more compact. Simultaneously, the first gear 31, the fourth gear 34, and the fifth gear 35 are all symmetrical about this third line L3, maintaining a balanced and stable torque transmission, which is beneficial for balancing the forces acting on the first gear 31, the fourth gear 34, and the fifth gear 35.

[0097] In some alternative embodiments, the second gear 32 and the third gear 33 are arranged radially symmetrically about the third connecting line L3. The purpose of this arrangement is to further facilitate the overall force balance of the transmission assembly 30 and the stability and balance of torque transmission.

[0098] The support base 36 is used to rotatably support the aforementioned wrench component 38 and transmission assembly 30. For example... Figure 8 and Figure 9 As shown, in some embodiments of this application, the support base 36 includes a first base 361 and a second base 362 connected along the second axis A2, and a transmission assembly 30 is located between the first base 361 and the second base 362, and is rotatably disposed on the first base 361 and / or the second base 362. Figure 8 and Figure 9 As shown, the first seat 361 and the second seat 362 are provided with a second opening 360 aligned along the second axis A2 and used to avoid the first opening 380. The second opening 360 allows the first opening 380 to be fully exposed to the support seat 36.

[0099] The output shaft of the power component 37 passes through the first base 361 and is connected to the transmission assembly 30. The other parts of the power component 37 are located outside the support base 36, and optionally, on the upper side of the support base 36 along the height direction Z.

[0100] In some embodiments of this application, the first seat 361 and the second seat 362 are used to limit the aforementioned wrench member 38, the first gear 31 to the fifth gear 35, etc. in the direction along the second axis A2. Therefore, the first seat 361 and the second seat 362 are configured to be rotatably connected to the wrench member 38 and the first gear 31 to the fifth gear 35 respectively in the direction along the second axis A2, and cover at least a portion of the wrench member 38 and the first gear 31 to the fifth gear 35.

[0101] In some alternative embodiments, such as Figure 5 and Figure 9As shown, the first base 361 and the second base 362 are configured to cover the first gear 31 to the fifth gear 35 along the direction of the second axis A2, except for the first opening 380 of the wrench piece 38. The purpose of this configuration is that the entire transmission assembly 30 is inside the support base 36 and is not visible from the outside of the support base 36. This prevents foreign objects from falling onto the periphery of the first gear 31 to the fifth gear 35 and affecting their rotation. At the same time, it also facilitates the user's hand operation of the entire leveling drive assembly 3.

[0102] Mounting grooves 363 are respectively provided on the surface of the first seat 361 facing the second seat 362 and on the surface of the second seat 362 facing the housing 101. The mounting grooves 363 are used to accommodate the aforementioned wrench member 38, first gear 31 to fifth gear 35, etc., in the direction of the second axis A2. In some optional embodiments, the mounting grooves 363 may be provided only on the surface of the first seat 361 facing the second seat 362, or only on the surface of the second seat 362 facing the first seat 361. Figure 9 Due to the angle of the illustration, only the mounting groove 363 on the surface of the second base 362 facing the first base 361 is shown.

[0103] In some embodiments of this application, the inner side of the second opening 360 away from the first opening 380 includes a guide surface. The guide surface is outwardly flared in a direction perpendicular to the central axis of the wrench member 38, that is, outwardly flared in the opening direction of the second opening 360. The purpose of this arrangement is that, when leveling the foot assembly 2, the end of the leveling drive assembly 3 with the wrench member 38 extends into the underside of the base plate 102. At this time, the wrench member 38 is often not visible. The guide surface is used to provide guidance when the second threaded member 22 enters the first opening 380, so that the second threaded member 22 can be quickly aligned with the first opening 380.

[0104] The opening direction of the second opening 360 can be the length direction X of the leveling drive assembly 3. When aligning the first opening 380 with the second threaded part 22, the operator holds the leveling drive assembly 3 and aligns it with the second threaded part 22 along its length direction X, which conforms to the operator's operating habits and makes the alignment operation more convenient.

[0105] In the width direction Y of the leveling drive assembly 3, at least one side of the second opening 360 is provided with a guide surface. In some alternative embodiments, in the width direction Y of the leveling drive assembly 3, one side of the second opening 360 is provided with a guide surface, and the inner side of the other side of the second opening 360 is parallel to the length direction X of the leveling drive assembly 3.

[0106] like Figure 4 , Figure 7 and Figure 9 As shown, in some embodiments of this application, the guide surface includes a first guide surface 3601 and a second guide surface 3602 located on opposite sides of the second opening 360. The opening directions of the first guide surface 3601 and the second opening 360 have a first included angle γ1, and the opening directions of the second guide surface 3602 and the second opening 360 have a second included angle γ2. The first included angle γ1 and the second included angle γ2 are not equal.

[0107] The purpose of this design is to ensure that the inclinations of the first guide surface 3601 and the second guide surface 3602 are different. When the second threaded component 22 is located between the first guide surface 3601 and the second guide surface 3602 and is in contact with both the first guide surface 3601 and the second guide surface 3602, the directions of the forces exerted by the first guide surface 3601 and the second guide surface 3602 on the outer circumferential surface of the second threaded component 22 are different. As a result, the second threaded component 22 is subjected to unbalanced forces, and the second threaded component 22 will rotate to adjust its angle to adapt, making it less likely to get stuck between the first guide surface 3601 and the second guide surface 3602.

[0108] The second threaded component 22 is either a right-hand threaded component or a left-hand threaded component. For example... Figure 5 As shown, in some embodiments of this application, along the rotation direction of the second threaded member 22, the first guide surface 3601 is located in front of the second guide surface 3602, and the first included angle γ1 is greater than the second included angle γ2.

[0109] like Figure 5 As shown, for the right-hand threaded component 22, when viewed from above, the direction from the first guide surface 3601 to the second guide surface 3602 is clockwise. Firstly, because the first included angle γ1 is greater than the second included angle γ2, the outer circumferential surface of the second threaded component 22 first contacts the first guide surface 3601. Under the action of the first guide surface 3601, the second threaded component 22 can simultaneously move along the opening direction of the first opening 380 and rotate clockwise relative to itself. Thus, the second threaded component 22 rises relative to the first threaded component 21, which is consistent with the leveling process of the foot assembly 2. Secondly, the second threaded component 22 continues to move along the opening direction of the first opening 380 and then contacts the second guide surface 3602. Because the second included angle γ2 is smaller, it is beneficial to guide the second threaded component 22 into the first opening 380, and the second threaded component 22 is less likely to get stuck at the second guide surface 3602.

[0110] For the left-handed second threaded component 22, when viewed from above, the direction from the first guide surface 3601 to the second guide surface 3602 is counterclockwise. Similarly, the outer peripheral surface of the second threaded component 22 first contacts the first guide surface 3601, and under the action of the first guide surface 3601, moves along the opening direction of the first opening 380 and rotates counterclockwise relative to the second threaded component 22. At this time, the second threaded component 22 also rises relative to the first threaded component 21, still consistent with the leveling process of the foot assembly 2; secondly, the second threaded component 22 continues to move along the opening direction of the first opening 380 and then contacts the second guide surface 3602. The second guide surface 3602 can guide the second threaded component 22 into the first opening 380, and the second threaded component 22 is not prone to jamming at the second guide surface 3602.

[0111] like Figure 8 and Figure 9 As shown, in some embodiments of this application, the leveling drive assembly 3 further includes a position detection element 39, which is used to detect the position of the output shaft of the power element 37. The purpose of this arrangement is to allow the power element 37 to drive the wrench element 38 to rotate to a specific angle at which the first opening 380 and the second opening 360 can be aligned, thereby allowing the second threaded element 22 to disengage from the first opening 380.

[0112] In some alternative embodiments, such as Figure 8 and Figure 9 As shown, the positioning detection element 39 includes a first bushing 391 and a sensing element 392. The first bushing 391 is fixedly connected to the output shaft of the power element 37 and rotates synchronously with the output shaft of the power element 37. The sensing element 392 is disposed on the support base 36 and located on one side of the outer circumference of the first bushing 391. When the first bushing 391 rotates with the output shaft of the power element 37, the sensing element 392 can sense the position of the first bushing 391, thereby reflecting the position of the first opening 380 of the wrench element 38.

[0113] The type of sensing element 392 and its sensing method with respect to the first bushing 391 are not limited. For example, the sensing element 392 can be a Hall sensor used to detect magnetic fields. The first bushing 391 includes a sensed portion 3910, which is a magnetic component, such as a permanent magnet, while the other parts of the first bushing 391 are non-magnetic components. Thus, when the first bushing 391 rotates to a position where its sensed portion 3910 corresponds to the sensing element 392, the sensing element 392 can be triggered. At this time, it indicates that the power component 37 and the wrench component 38 have returned to a specific position, allowing the second threaded component 22 to disengage from the first opening 380. For example... Figure 9As shown, the sensing element 392 can be a photoelectric sensor, which includes a transmitting end 3921 for emitting light and a receiving end 3922 for receiving the returned light. When the sensed part 3910 of the first bushing 391 is located between the transmitting end 3921 and the receiving end 3922, the photoelectric sensor can be triggered. In other alternative embodiments, the sensing element 392 can sense and detect the sensed part 3910 in other ways.

[0114] In some alternative embodiments, the sensed part 3910 can be directly fixed on the output shaft of the power member 37 as a separate component.

[0115] In some embodiments of this application, such as Figure 8 and Figure 9 As shown, the leveling drive assembly 3 may further include a second bushing 395, which is fixed to the support base 36. Specifically, it is the side of the first base 361 facing away from the second base 362. The output shaft of the power component 37 passes through the second bushing 395, and the first bushing 391 and the sensing element 392 are located inside the second bushing 395. The purpose of this arrangement is twofold: firstly, the second bushing 395 provides a certain height in the direction of the third axis A3 to accommodate the axial dimension of the output shaft of the power component 37, allowing other parts of the power component 37 to be stably mounted on the support base 36; secondly, the second bushing 395 protects the first bushing 391 and the sensing element 392, which helps ensure the normal operation of the sensing and detection function between them and avoids interference from outside the second bushing 395.

[0116] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A leveling drive assembly, characterized in that, It includes a support base, and a power component and a wrench component disposed on and connected to the support base. The wrench component has a first opening opened radially thereon, and the power component is used to drive the wrench component to rotate about its central axis.

2. The leveling drive assembly as described in claim 1, characterized in that, The leveling drive assembly further includes a transmission assembly, which is connected between the power component and the wrench component in a direction perpendicular to the central axis of the wrench component.

3. The leveling drive assembly as described in claim 2, characterized in that, The transmission assembly includes a first gear connected to the power component, and a second gear and a third gear meshing with the first gear. The second gear and the third gear also mesh with the wrench component. A first line connects the center point of the second gear to the center point of the wrench component, and a second line connects the center point of the third gear to the center point of the wrench component. The included angle between the first line and the second line is greater than the central angle corresponding to the first opening.

4. The leveling drive assembly as described in claim 2 or 3, characterized in that, The support base includes a first base and a second base connected along the central axis of the wrench component. The first base and the second base are provided with a second opening aligned along the central axis of the wrench component and used to avoid the first opening.

5. The leveling drive assembly as described in claim 4, characterized in that, The inner side of the second opening includes a guide surface that expands outward in a direction perpendicular to the central axis of the wrench.

6. The leveling drive assembly as described in claim 5, characterized in that, The guide surface includes a first guide surface and a second guide surface. The first guide surface and the second guide surface have a first included angle between their opening directions and the second opening direction, and the second guide surface and the second opening direction have a second included angle. The first included angle and the second included angle are not equal.

7. The leveling drive assembly as described in claim 4, characterized in that, The output shaft of the power component is parallel to the central axis of the wrench component; the output shaft of the power component passes through the first base and is connected to the transmission assembly.

8. A cleaning device, characterized in that, include: The housing includes a base plate; A foot assembly, the foot assembly comprising a first threaded component and a second threaded component; The first threaded component and the second threaded component are threadedly engaged. The first threaded component is connected to the base plate through a circumferential anti-rotation structure. The second threaded component can rotate relative to the first threaded component and drive the base plate to move along the axial direction of the first threaded component. as well as The leveling drive assembly as described in any one of claims 1 to 7; the first opening is used to receive the second threaded member, so as to drive the second threaded member to rotate and drive the base plate to move along the axial direction of the first threaded member.

9. The cleaning equipment as described in claim 8, characterized in that, The first threaded component has an external thread, and the second threaded component has an internal thread; the base plate is provided with a through hole, and the first threaded component is disposed in the through hole along its axial direction.

10. The cleaning equipment as described in claim 9, characterized in that, The circumferential anti-rotation structure includes a thread avoidance section provided along the axial direction on the first threaded component, and a mating section provided on the inner wall of the through hole that is adapted to the thread avoidance section.

11. The cleaning equipment as described in claim 8, characterized in that, The second threaded component includes a second threaded portion and an abutting portion. The second threaded portion is used to engage with the first threaded component. The abutting portion is located at one end of the second threaded portion facing the base plate and abuts against one side surface of the base plate.

12. The cleaning equipment as claimed in claim 11, characterized in that, The foot assembly further includes a bracket and a friction plate. The bracket is fixedly connected to the base plate and has a bearing surface facing the base plate. The abutment portion is disposed between the bearing surface and the base plate along the axial direction of the first threaded member. The friction plate is disposed between the bearing surface and the abutment portion along the axial direction of the first threaded member.

13. A leveling control system, characterized in that, The device includes a leveling drive assembly, a controller, and a leveling detector as described in any one of claims 1 to 7. The leveling detector is connected to the device to be leveled and is used to detect the horizontal tilt angle of the device to be leveled. The controller is communicatively connected to the leveling detector and the power component, respectively. The controller is used to control the power component according to the horizontal tilt angle of the device to be leveled.

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