A lifting structure and floor cleaning robot
By designing a lifting structure including a driving device, a rotating screw, a pressure adjustment rod, etc., the roller brush assembly of the floor scrubbing robot can lift and lower and adjust the pressure on the ground, the problem that the existing floor scrubbing robot cannot cope with different working conditions is solved, and lower power consumption and more ideal cleaning effect are achieved.
Patent Information
- Application Number
- CN202111394848.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-23
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2041-11-23
AI Technical Summary
The existing floor scrubbing robot roller brush lacks lifting function and cannot cope with different working conditions, resulting in high power consumption and unsatisfactory cleaning effect.
A lifting structure is designed, including a driving device, a rotating screw, a pressure adjustment rod, an elastic member, a first adjustment member and a second adjustment member. Through the linkage of these components, the roller brush assembly can be lifted and lowered and the pressure on the ground is adjusted.
The lifting and pressure adjustment of the roller brush assembly is realized, solving the problem that existing floor scrubbing robots cannot cope with a variety of different working conditions, reducing power consumption and improving cleaning effect.
Smart Images
Figure CN114209251B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of floor-cleaning robots, and in particular to a lifting structure and a floor-cleaning robot. Background Art
[0002] The existing brushless floor scrubbers usually do not have a lifting function and are pressed on the ground by their own weight; or although they have a lifting function, they exert a fixed pressure on the ground when they fall, and their ability to cope with different working conditions is poor, and their power consumption is high. Existing small-scale floor scrubbers generally do not have a brushless lifting function. The brushless floor scrubbers are on the ground throughout the entire process and are pressed on the ground by their own weight, which causes great wear and tear, and the cleaning effect on the ground is not ideal. The brushless floor scrubbers of existing large-scale floor scrubbers cannot clean the ground according to actual needs, resulting in unnecessary waste of power consumption. Summary of the invention
[0003] The present invention provides a lifting structure and a floor-cleaning robot, so as to solve the problem that the existing floor-cleaning robots cannot cope with a variety of different working conditions.
[0004] In order to solve the above problems, the present invention adopts the following technical solutions:
[0005] In the first aspect, the present invention provides a lifting structure, including: a driving device, a rotating screw, a pressure adjusting rod, an elastic member, a first adjusting member, and a second adjusting member; the first adjusting member and the second adjusting member are both used to connect with the roller brush assembly; the first adjusting member is located above the pressure adjusting rod; the rotating screw is respectively connected to the driving device and the pressure adjusting rod; the two ends of the elastic member are respectively connected to the pressure adjusting rod and the second adjusting member; the rotating screw is rotated by the driving device to move the pressure adjusting rod up / down; when the pressure adjusting rod moves upward, the first adjusting member is lifted to make the roller brush assembly move upward; when the pressure adjusting rod moves downward, the elastic member is compressed to adjust the pressure of the roller brush assembly on the ground.
[0006] Its further technical solution is that the rotating screw includes a first bevel gear and a screw nut, and the first bevel gear is connected to the driving device; the rotating screw also includes a screw nut, and the screw nut is connected to the pressure adjusting rod; the first bevel gear is rotated by the driving device, driving the screw nut and then moving the pressure adjusting rod.
[0007] A further technical solution is that the driving device includes a second bevel gear, and the second bevel gear is connected to the first bevel gear.
[0008] A further technical solution is that the driving device further includes a driving shaft, and the driving shaft is connected to the second bevel gear.
[0009] A further technical solution is that the driving device further includes a first spur gear and a second spur gear; the first spur gear is sleeved on the driving shaft and connected to the second spur gear.
[0010] A further technical solution is that the driving device further includes a driving motor, and the driving motor is connected to the second spur gear; the first spur gear is driven by driving the second spur gear, thereby causing the driving shaft to rotate.
[0011] A further technical solution is that it also includes a frame, and the rotating screw and the driving device are both arranged on the frame.
[0012] A further technical solution is that it also includes a limit switch, which is arranged above the pressure regulating rod and connected to the frame.
[0013] A further technical solution is that it also includes a supporting device, and the supporting device is connected to the rotating screw.
[0014] In a second aspect, the present invention provides a floor scrubbing robot, comprising the lifting structure as described in the first aspect.
[0015] Beneficial effects of the present invention:
[0016] A lifting structure includes: a driving device, a rotating screw, a pressure adjustment rod, an elastic member, a first adjustment member, and a second adjustment member; the first adjustment member and the second adjustment member are both used to connect with a roller brush assembly; the first adjustment member is located above the pressure adjustment rod; the rotating screw is respectively connected to the driving device and the pressure adjustment rod; the two ends of the elastic member are respectively connected to the pressure adjustment rod and the second adjustment member; the rotating screw is rotated by the driving device to move the pressure adjustment rod up / down; when the pressure adjustment rod moves upward, the first adjustment member is lifted to move the roller brush assembly upward; when the pressure adjustment rod moves downward, the elastic member is compressed to adjust the pressure of the roller brush assembly on the ground. By lifting or pressing the pressure adjustment rod, the roller brush assembly can be lifted, or the pressure of the roller brush assembly on the ground can be adjusted, thereby solving the problem that the roller brush assembly cannot be lifted or lowered or the pressure on the ground cannot be adjusted in the existing floor cleaning robot. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0019] Figure 1 A schematic diagram of the overall structure of a lifting structure provided by an embodiment of the present invention;
[0020] Figure 2 A structural schematic diagram of a lifting structure provided by an embodiment of the present invention.
[0021] Reference numerals
[0022] Driving device 10, second bevel gear 11, driving shaft 12, first spur gear 13, second spur gear 14, driving motor 15, rotating screw 20, first bevel gear 21, screw nut 22, pressure adjustment rod 30, elastic member 40, first adjustment member 50, second adjustment member 60, roller brush assembly 70, frame 80, limit switch 90, supporting device 100. DETAILED DESCRIPTION
[0023] In order to more fully understand the technical content of the present invention, the technical solution of the present invention is further introduced and illustrated in conjunction with specific embodiments below, but is not limited thereto.
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0025] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.
[0026] It should also be understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
[0027] See also Figure 1-2, an embodiment of the present invention provides a lifting structure, which includes: a driving device 10, a rotating screw 20, a pressure adjusting rod 30, an elastic member 40, a first adjusting member 50, and a second adjusting member 60; the first adjusting member 50 and the second adjusting member 60 are both used to connect with the roller brush assembly 70; the first adjusting member 50 is located above the pressure adjusting rod 30; the rotating screw 20 is respectively connected to the driving device 10 and the pressure adjusting rod 30; the two ends of the elastic member 40 are respectively connected to the pressure adjusting rod 30 and the second adjusting member 60; the rotating screw 20 is rotated by the driving device 10 to move the pressure adjusting rod 30 up / down; when the pressure adjusting rod 30 moves upward, the first adjusting member 50 is lifted to make the roller brush assembly 70 move upward; when the pressure adjusting rod 30 moves downward, the elastic member 40 is compressed to adjust the pressure of the roller brush assembly 70 on the ground. By lifting or pressing down the pressure adjustment rod, the roller brush assembly can be lifted, or the pressure of the roller brush assembly on the ground can be adjusted, thereby solving the problem in the prior art that the roller brush assembly cannot be raised or lowered or the pressure on the ground cannot be adjusted.
[0028] In an embodiment of the present invention, the elastic member 40 may be specifically a spring, and the first adjusting member 50 and the second adjusting member 60 may be specifically a fixed block with a screw hole, and the fixed block is fixed to the roller brush assembly 70 by screws, that is, the first adjusting member 50 and the second adjusting member 60 are fixed to the roller brush assembly 70, so that the roller brush assembly 70 can be lifted or the pressure of the roller brush assembly 70 on the ground can be adjusted by the pressure adjustment rod 30.
[0029] When lifting the roller brush assembly 70, the pressure adjusting rod 30 raises the first adjusting member 50 to lift the roller brush assembly 70; when adjusting the pressure of the roller brush assembly 70 on the ground, the spring is pressed down by the pressure adjusting rod 30 to control the compression amount of the spring, thereby adjusting the pressure of the spring on the roller brush assembly 70 to adjust the pressure of the roller brush assembly 70 on the ground.
[0030] Furthermore, the rotating screw 20 includes a first bevel gear 21 and a screw nut 22, wherein the first bevel gear 21 is connected to the driving device 10; the screw nut 22 is connected to the pressure regulating rod 30; the first bevel gear 21 is rotated by the driving device 10, driving the screw nut 22 and thus moving the pressure regulating rod 30. Specifically, the first bevel gear 21 has a plurality of gears, which are connected to the driving device 10 through the plurality of gears, and when the rotating screw 20 rotates, the pressure regulating rod 30 is driven to rise or fall through the screw nut 22, thereby improving the simplicity of the lifting structure.
[0031] Furthermore, the driving device 10 includes a second bevel gear 11, and the second bevel gear 11 is connected to the first bevel gear 21. Specifically, when the rotating screw 20 is driven to rotate, it is achieved through the gear connection relationship between the first bevel gear 21 and the second bevel gear 11, thereby improving the reliability of the coordinated rotation between the driving device 10 and the rotating screw 20.
[0032] Furthermore, the driving device 10 further includes a driving shaft 12, and the driving shaft 12 is connected to the second bevel gear 11. Specifically, the second bevel gears 11 are provided at both ends of the driving shaft 12, and by driving the driving shaft 12 to rotate, the second bevel gears 11 at both ends of the driving shaft 12 can be driven to rotate, thereby driving the first bevel gear 21 to rotate, and then the rotating screw 20 can be driven to rotate, thereby improving the reliability of the lifting structure during movement.
[0033] Furthermore, the driving device 10 also includes a first spur gear 13 and a second spur gear 14; the first spur gear 13 is sleeved on the driving shaft 12 and connected to the second spur gear 14. Specifically, the first spur gear 13 and the second spur gear 14 are connected through gears, so that the first spur gear 13 sleeved on the driving shaft 12 can be driven by the second spur gear 14 to rotate, thereby rotating the second bevel gears 11 at both ends of the driving shaft 12, driving the rotating screw 20 to rotate, and then moving the pressure adjustment rod 30 to lift the roller brush assembly 70 or adjust the pressure of the roller brush assembly 70 on the ground. Through the adjustability of the roller brush assembly, the roller brush assembly can be used according to actual needs to reduce unnecessary power consumption losses.
[0034] Furthermore, the driving device 10 also includes a driving motor 15, and the driving motor 15 is connected to the second spur gear 14; the first spur gear 13 is driven by driving the second spur gear 14, thereby rotating the driving shaft 12. Specifically, by connecting the driving motor 15 with the second spur gear 14, the second spur gear 14 can be driven by the driving motor 15 to rotate, thereby rotating the first spur gear 13 connected to the second spur gear 14, and rotating the driving shaft 12 to drive the second bevel gears 11 at both ends of the driving shaft 12 to rotate, thereby driving the rotating screw 20 to rotate. Through the overall linkage between the driving device 10 and the rotating screw 20, the lifting and lowering of the pressure adjustment rod can be made more reliable, ensuring the adjustability of the roller brush assembly.
[0035] Furthermore, it also includes a frame 80, and the rotating screw rod 20 and the driving device 10 are both arranged on the frame 80. Specifically, the rotating screw rod 20 and the driving device 10 are arranged on the frame, and the rotating screw rod 20 is arranged on both sides of the driving device 10.
[0036] Furthermore, a limit switch 90 is included, which is arranged above the pressure adjustment rod 30 and connected to the frame 80. Specifically, the limit switch is used to calibrate the motor zero position after each power-on to ensure the correspondence between the number of motor rotations and the ground pressure, and prevent the pressure adjustment rod 30 from touching the driving shaft 12 when lifting the roller brush assembly 70, thereby preventing the components of the driving device 10 on the frame 80 from being worn.
[0037] Furthermore, it also includes a support device 100, and the support device 100 is connected to the rotating screw 20. Specifically, the rotating screw 20 is supported by the support device 100, so that the entire lifting structure has stable support when the roller brush assembly 70 is lifted or pressed down, thereby improving the stability of the lifting structure.
[0038] An embodiment of the present invention further provides a floor-cleaning robot, which includes the lifting structure proposed in the above embodiment.
[0039] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0040] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features invented herein.
Claims
1. A lifting structure, characterized in that: include: A driving device, a rotating screw, a pressure regulating rod, an elastic member, a first regulating member, and a second regulating member; the first regulating member and the second regulating member are both used to connect with the roller brush assembly; the first regulating member is located above the pressure regulating rod; the rotating screw is respectively connected with the driving device and the pressure regulating rod; the two ends of the elastic member are respectively connected with the pressure regulating rod and the second regulating member; the rotating screw is rotated by the driving device to move the pressure regulating rod upward / downward; when the pressure regulating rod moves upward, the first regulating member is lifted to move the roller brush assembly upward; when the pressure regulating rod moves downward, the elastic member is compressed to adjust the pressure of the roller brush assembly on the ground; It also includes a frame, and the rotating screw and the driving device are both arranged on the frame; It also includes a limit switch, which is arranged above the pressure regulating rod and connected to the frame. The limit switch is used to calibrate the zero position of the driving device after each power-on.
2. The lifting structure according to claim 1, characterized in that: The rotating screw includes a first bevel gear and a screw nut, and the first bevel gear is connected to the driving device; the rotating screw also includes a screw nut, and the screw nut is connected to the pressure adjusting rod; the first bevel gear is rotated by the driving device, driving the screw nut and then moving the pressure adjusting rod.
3. The lifting structure according to claim 2, characterized in that: The driving device includes a second bevel gear connected to the first bevel gear.
4. The lifting structure according to claim 3, characterized in that: The driving device further comprises a driving shaft, and the driving shaft is connected to the second bevel gear.
5. The lifting structure according to claim 4, characterized in that: The driving device further includes a first spur gear and a second spur gear; the first spur gear is sleeved on the driving shaft and connected to the second spur gear.
6. The lifting structure according to claim 5, characterized in that: The driving device further comprises a driving motor, and the driving motor is connected to the second spur gear; the first spur gear is driven by driving the second spur gear, thereby causing the driving shaft to rotate.
7. The lifting structure according to claim 1, characterized in that: It also includes a supporting device, which is connected to the rotating screw rod.
8. A floor-cleaning robot, characterized in that: It comprises a lifting structure as described in any one of claims 1 to 7.
Citation Information
Patent Citations
Cleaning cloth lifting driver, cleaning cloth driving mechanism and dust collector
CN214678799U
Lifting structure and floor washing robot
CN216823263U