A disc brush assembly and a cleaning robot

Abstract

The utility model discloses an embodiment provides a kind of disc brush assembly and cleaning robot, disc brush assembly includes: scissor fork assembly, including two scissor fork arms and parallelly arranged first mounting plate and second mounting plate;Two ends of scissor fork arm are connected with first mounting plate and second mounting plate respectively;Cleaning assembly is connected with the side of second mounting plate of scissor fork assembly away from first mounting plate;Drive assembly, the fixed end of drive assembly is connected with first mounting plate, and the drive end of drive assembly is connected with cleaning assembly, can drive cleaning assembly to move along the direction of approaching or away from first mounting plate, improve the modular degree of disc brush assembly whole.

Description

Technical Field

[0001] This application relates to the field of cleaning technology, and in particular to a disc brush assembly and a cleaning robot. Background Technology

[0002] In existing technology, the disc brush assembly of a cleaning robot includes two drive components, two scissor arms, and a cleaning component. The two drive components and two scissor arms are respectively located on both sides of the cleaning component along its length and on both sides of the cleaning robot's wheel. The drive components on both sides of the cleaning component along its length drive the cleaning component to move up and down on both sides, and the up and down movement of the cleaning component causes the scissor arms on the corresponding sides to extend and retract. This structure, with two sets of drive components and scissor arms arranged separately, requires the separate removal of the drive components and scissor arms on both sides of the cleaning component when it is necessary to remove the disc brush assembly from the cleaning robot, resulting in a low degree of modularity for the overall disc brush assembly. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a disc brush assembly and a cleaning robot to improve the overall modularity of the disc brush assembly. The specific technical solution is as follows:

[0004] A disc brush assembly includes: a scissor assembly comprising two scissor arms and a first mounting plate and a second mounting plate arranged in parallel; the two ends of the scissor arms are respectively connected to the first mounting plate and the second mounting plate; a cleaning assembly connected to the side of the second mounting plate of the scissor assembly away from the first mounting plate; and a driving assembly, the fixed end of the driving assembly being connected to the first mounting plate, and the driving end of the driving assembly being connected to the cleaning assembly, capable of driving the cleaning assembly to move in a direction close to or away from the first mounting plate.

[0005] In some embodiments of this application, the first mounting plate and the second mounting plate are respectively provided with a first opening and a second opening, the first opening and the second opening being located between the two scissor arms; the drive assembly passes through the first opening and the second opening, and the drive end of the drive assembly is connected to the side of the cleaning assembly near the first mounting plate.

[0006] In some embodiments of this application, each scissor lift includes a first link and a second link that are cross-connected and hinged at the middle; the first links of the two scissor lifts are parallel to each other, and the second links are also parallel to each other; the first ends of the first links of the two scissor lifts are hinged to the first mounting plate via the same first pin, and the second ends are respectively hinged to the second mounting plate via different pins; the first ends of the second links of the two scissor lifts are respectively hinged to the first mounting plate via different pins, and the second ends are hinged to the second mounting plate via the same second pin; wherein, the first pin is slidably connected to the first mounting plate, and the second pin is slidably connected to the second mounting plate.

[0007] In some embodiments of this application, the first mounting plate has two first sliding grooves on the side near the second mounting plate; the first ends of the two first connecting rods are respectively disposed in the two first sliding grooves; each first sliding groove includes two opposing first sliding groove sidewalls, and each first sliding groove sidewall is provided with a first waist-shaped hole; the first pin passes through all the first waist-shaped holes and the first ends of the two first connecting rods; the second mounting plate has two second sliding grooves on the side near the first mounting plate; the second ends of the two second connecting rods are respectively disposed in the two second sliding grooves; each second sliding groove includes two opposing second sliding groove sidewalls, and each second sliding groove sidewall is provided with a second waist-shaped hole; the second pin passes through all the second waist-shaped holes and the second ends of the two second connecting rods.

[0008] In some embodiments of this application, it further includes: an adapter connected to the side of the first mounting plate away from the second mounting plate, the adapter covering a portion of the first opening, the adapter being connected to the first mounting plate via a guide rod; on each guide rod, a limiting post is sleeved between the adapter and the first mounting plate, and a first elastic element is sleeved between the adapter and the end of the guide rod away from the first mounting plate.

[0009] In some embodiments of this application, the adapter has a U-shaped structure, including a fixing part and connecting parts located on both sides of the fixing part. The connecting parts are respectively connected to both sides of the first opening on the first mounting plate. The fixing part protrudes from the connecting part in a direction away from the first mounting plate. The connecting part is connected to the first mounting plate through the guide rod. The fixed end of the drive assembly is hinged to the side of the fixing part facing the first mounting plate. The drive end of the drive assembly is hinged to the cleaning assembly.

[0010] In some embodiments of this application, the cleaning assembly further includes: a fixing plate and two brush discs; the fixing plate is connected to the side of the second mounting plate away from the first mounting plate and covers the second opening; the two brush discs are symmetrically arranged on the side of the fixing plate away from the first mounting plate; the driving end of the driving assembly is connected to the position of the fixing plate exposed in the second opening.

[0011] In some embodiments of this application, each brush disc includes: a brush and a sidewall; the sidewall is arc-shaped and circumferentially surrounds the side of the brush disc away from the other brush disc; a rubber screw is provided on each side of the sidewall in the extending direction, and each rubber screw is connected to a rubber plug fixing seat on the fixing plate by a ball joint; the sidewall is also provided with a sidewall mounting hole, a second elastic element and a bolt, and the fixing plate is provided with a fixing hole, and the bolt passes through the second elastic element, the sidewall mounting hole and the fixing hole in sequence; the inner diameter of the sidewall mounting hole is larger than the outer diameter of the bolt and smaller than the outer diameter of the end of the second elastic element near the sidewall mounting hole.

[0012] In some embodiments of this application, the drive end of the drive component is connected to the center of symmetry of the two brush disks on the fixed plate.

[0013] A cleaning robot includes the disc brush assembly of any of the above embodiments.

[0014] Beneficial effects of the embodiments in this application:

[0015] The disc brush assembly provided in this application embodiment has a cleaning component connected to a second mounting plate of a scissor lift assembly. When the driving component drives the entire cleaning component to move in a direction closer to or away from the first mounting plate, the cleaning component can drive the second mounting plate of the scissor lift assembly to move in a direction closer to or away from the first mounting plate. The second mounting plate is connected to the first mounting plate through two scissor lift arms. The cleaning component is connected to the side of the second mounting plate away from the first mounting plate, and the fixed end of the driving component is connected to the first mounting plate. When the first mounting plate is connected to the main body of the cleaning robot, the entire disc brush assembly can be connected to the main body of the cleaning robot without having to connect each component of the disc brush assembly to the main body of the cleaning robot separately, thus improving the overall modularity of the disc brush assembly.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the structure of the disc brush assembly installed on the mounting body according to an embodiment of this application;

[0019] Figure 2 for Figure 1 A structural diagram after removing the main body;

[0020] Figure 3 for Figure 2 Exploded view;

[0021] Figure 4 This is a schematic diagram of the scissor assembly of the disc brush assembly provided in the embodiments of this application;

[0022] Figure 5 for Figure 4 A schematic diagram of the structure of the first mounting plate of the scissor lift assembly shown;

[0023] Figure 6 for Figure 5 A schematic diagram of the first mounting plate from another angle is shown;

[0024] Figure 7 for Figure 4 A schematic diagram of the structure of the second mounting plate of the scissor lift assembly shown;

[0025] Figure 8 A partial cross-sectional view of the drive component and adapter of the disc brush assembly provided in the embodiments of this application after connection;

[0026] Figure 9 Exploded view of the drive component and adapter of the disc brush assembly provided in the embodiments of this application;

[0027] Figure 10 An exploded view of the cleaning component provided in the embodiments of this application;

[0028] Figure 11 for Figure 10 A schematic diagram of the structure of the retaining edge of the cleaning component shown;

[0029] Figure 12 for Figure 10 A schematic diagram of the structure of the fixing plate of the cleaning component shown;

[0030] Figure 13 A partial cross-sectional view of the fixing plate and the edge guard of the disc brush assembly provided in the embodiment of this application after connection;

[0031] Figure 14 for Figure 13 Enlarged view of point A;

[0032] Figure 15 for Figure 13 Enlarged view of point B;

[0033] Figure 16 for Figure 11 A schematic diagram of the structure of the rubber screw on the flange shown;

[0034] Figure 17 for Figure 12 The diagram shows the structure of the rubber plug fixing seat on the fixing plate.

[0035] Figure 18 for Figure 17 The CC section view of the rubber stopper holder shown.

[0036] Explanation of reference numerals in the attached figures:

[0037] Scissor lift assembly 10; scissor lift arm 11; first connecting rod 111; second connecting rod 112; first pin 113; second pin 114; first mounting plate 12; first opening 121; first slide groove 122; first slide groove sidewall 1221; first oblong hole 1222; second mounting plate 13; second opening 131; second slide groove 132; second slide groove sidewall 1321; second oblong hole 1322;

[0038] Cleaning component 20; fixing plate 21; fixing hole 211; connector 212; first connecting part 2121; second connecting part 2122; connecting hole 213; brush disc 22; brush 221; side guard 222; side guard mounting hole 2221; second elastic element 2222; bolt 2223; rubber screw 223; spherical end 2231; rubber plug fixing seat 224; spherical groove 2241; through groove 2242; brush disc drive component 225; pin 23;

[0039] Drive assembly 30; fixed end 31; rotating pin 311; drive end 32; first hinge hole 321;

[0040] Adapter 40; Fixing part 41; Second hinge hole 411; Connecting part 42; Guide rod 43; Limiting post 44; First elastic element 45;

[0041] Mounting body 50; third opening 51. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art based on this application are within the protection scope of the present utility model.

[0043] To improve the overall modularity of the disc brush assembly, this application provides a disc brush assembly and a cleaning robot, which will be described in detail below.

[0044] Figure 1 This is a schematic diagram of the structure of the disc brush assembly provided in this application, installed on the mounting body.

[0045] Figure 2 for Figure 1 The structural diagram after removing the main body shows that the disc brush assembly includes a scissor assembly 10, a cleaning assembly 20, and a drive assembly 30.

[0046] Figure 3 for Figure 2 The exploded view shows the scissor lift assembly 10, the cleaning assembly 20, and the drive assembly 30. The scissor lift assembly 10 includes two scissor arms 11 and a first mounting plate 12 and a second mounting plate 13 arranged in parallel. The two ends of the scissor arms 11 are connected to the first mounting plate 12 and the second mounting plate 13, respectively.

[0047] The disc brush assembly provided in this application includes: a scissor assembly 10, including two scissor arms 11 and a first mounting plate 12 and a second mounting plate 13 arranged in parallel; the two ends of the scissor arms 11 are respectively connected to the first mounting plate 12 and the second mounting plate 13; a cleaning assembly 20, connected to the side of the second mounting plate 13 of the scissor assembly 10 away from the first mounting plate 12; and a driving assembly 30, the fixed end of the driving assembly 30 is connected to the first mounting plate 12, and the driving end 32 of the driving assembly 30 is connected to the cleaning assembly 20, which can drive the cleaning assembly 20 to move in a direction close to or away from the first mounting plate 12.

[0048] The disc brush assembly provided in this application embodiment has a cleaning component 20 connected to the second mounting plate 13 of the scissor lift assembly 10. When the driving component 30 drives the cleaning component 20 to move as a whole in a direction close to or away from the first mounting plate 12, the cleaning component 20 can drive the second mounting plate 13 of the scissor lift assembly 10 to move in a direction close to or away from the first mounting plate 12. The second mounting plate 13 is connected to the first mounting plate 12 through two scissor lift arms 11. The cleaning component 20 is connected to the side of the second mounting plate 13 away from the first mounting plate 12. The fixed end of the driving component 30 is also connected to the first mounting plate 12. When the first mounting plate 12 is connected to the main body of the cleaning robot, the entire disc brush assembly can be connected to the main body of the cleaning robot without having to connect each component of the disc brush assembly to the main body of the cleaning robot separately, thus improving the overall modularity of the disc brush assembly.

[0049] In this embodiment, a single drive component 30 can move the entire cleaning component 20 along the direction of approaching or moving away from the first mounting plate 12, resulting in a simpler structure. Furthermore, the cleaning component 20 moves the second mounting plate 13, which allows the two scissor arms 11 to be compressed or stretched simultaneously by the same distance, thus ensuring consistent movement of the entire cleaning component 20. This reduces the possibility of the cleaning component 20 becoming skewed and improves the consistency of movement of the cleaning component 20 in the disc brush assembly.

[0050] In some embodiments, the drive assembly 30 is an electric push rod, and the drive end of the drive assembly 30 is the telescopic end of the electric push rod.

[0051] like Figure 3 As shown, the first mounting plate 12 and the second mounting plate 13 are respectively provided with a first opening 121 and a second opening 131, which are located between the two scissor arms 11; the drive assembly 30 passes through the first opening 121 and the second opening 131, and the drive end 32 of the drive assembly 30 is connected to the side of the cleaning assembly 20 near the first mounting plate 12.

[0052] In this embodiment, the drive assembly 30 passes through the first opening 121 and the second opening 131, which effectively utilizes the space structure and makes the arrangement more compact. Since the first opening 121 and the second opening 131 are located between the two scissor arms 11, the drive assembly 30 is also located between the two scissor arms 11. When the drive assembly 30 drives the cleaning assembly 20 to move in a direction closer to or away from the first mounting plate 12, the force applied by the cleaning assembly 20 and the second mounting plate 13 to the two scissor arms 11 is more uniform.

[0053] In some embodiments, the first mounting plate 12 and the second mounting plate 13 may not have the first opening 121 and the second opening 131 provided, and the drive assembly 30 may not be located between the two scissor arms 11. In this case, a connecting plate extends outward from the edge of the first mounting plate 12, the fixed end of the drive assembly 30 is connected to the connecting plate, and the drive end of the drive assembly 30 is connected to the cleaning assembly.

[0054] In some embodiments, when the first mounting plate 12 and the second mounting plate 13 are respectively provided with a first opening 121 and a second opening 131, the mounting body 50 is connected to the side of the first mounting plate 12 away from the second mounting plate 13, and the mounting body 50 is provided with a third opening 51, and the drive assembly 30 passes through the third opening 51, the first opening 121 and the second opening 131.

[0055] In some embodiments, the disc brush assembly can be applied to a cleaning robot for cleaning floors. The mounting body 50 can be part of the disc brush assembly, and the disc brush assembly is connected to the main body of the cleaning robot via the mounting body 50. Alternatively, the mounting body 50 can also be part of the main body of the cleaning robot, for example, the mounting body 50 can be the chassis of the cleaning robot main body, and the disc brush assembly is integrally connected to the chassis of the cleaning robot main body.

[0056] In some embodiments, the first mounting plate 12 is provided with mounting holes, and the mounting holes of the first mounting plate 12 are connected to the mounting body 50 by fasteners; the overall modular design of the disc brush assembly is used to directly fix it to the mounting body 50 with fasteners, which facilitates production assembly, testing and subsequent disassembly and maintenance.

[0057] In some embodiments, the side of the first mounting plate 12 away from the second mounting plate 13 may not be connected to the mounting body 50. In this case, the disc brush assembly is directly connected to the cleaning robot body through the first mounting plate 12.

[0058] In some embodiments, the second mounting plate 13 is also provided with mounting holes, and the mounting holes of the second mounting plate 13 are connected to the cleaning component 20 by fasteners.

[0059] In some embodiments, the first opening 121 and the second opening 131 are rectangular openings, but they can also be openings of other shapes, as long as the driving component 30 can pass through. This application does not impose any specific limitations here.

[0060] Figure 4This is a schematic diagram of the scissor assembly 10 of the disc brush assembly provided in an embodiment of this application. In some embodiments, each scissor arm 11 includes a first connecting rod 111 and a second connecting rod 112 that are arranged crosswise and hinged at the middle. The first connecting rods 111 of the two scissor arms 11 are parallel to each other, and the second connecting rods 112 are parallel to each other. The first end of the first connecting rod 111 of the two scissor arms 11 is hinged to the first mounting plate 12 through the same first pin 113, and the second end is hinged to the second mounting plate 13 through different pins. The first end of the second connecting rod 112 of the two scissor arms 11 is hinged to the first mounting plate 12 through different pins, and the second end is hinged to the second mounting plate 13 through the same second pin 114. The first pin 113 is slidably connected to the first mounting plate 12, and the second pin 114 is slidably connected to the second mounting plate 13.

[0061] In this embodiment, when the driving component 30 drives the cleaning component 20 to move in a direction closer to or away from the first mounting plate 12, the cleaning component 20 drives the second mounting plate 13 of the scissor fork assembly 10 to move in a direction closer to or away from the first mounting plate 12. The second mounting plate 13 can compress or stretch the two scissor arms 11. When the scissor arms 11 are compressed or stretched, the first connecting rod 111 and the second connecting rod 112 rotate relative to each other around the hinge point. While the first end of the first connecting rod 111 rotates around the first pin 113, the first pin 113 slides along the first mounting plate 12, and the second end of the first connecting rod 111 also rotates relative to the second mounting plate 13. While the first end of the second connecting rod 112 rotates relative to the first mounting plate 12, the second end rotates around the second pin 114, and the second pin 114 slides along the second mounting plate 13. Furthermore, the first end of the first link 111 of the two scissor arms 11 is hinged to the first mounting plate 12 through the same first pin 113, and the second end of the second link 112 is hinged to the second mounting plate 13 through the same second pin 114, which can further enable the two scissor arms 11 to compress or stretch synchronously, further improving the motion consistency of the cleaning component 20 of the disc brush assembly.

[0062] Figure 5 for Figure 4 The schematic diagram of the first mounting plate 12 of the scissor lift assembly shown is a schematic diagram of the side of the first mounting plate 12 away from the second mounting plate.

[0063] Figure 6 for Figure 5 The schematic diagram of the first mounting plate 12 from another angle is a schematic diagram of the structure of the first mounting plate 12 near the second mounting plate. It is provided with two first sliding grooves 122. Each first sliding groove 122 includes two opposing first sliding groove sidewalls 1221. Each first sliding groove sidewall 1221 is provided with a first waist-shaped hole 1222.

[0064] Figure 7 for Figure 4The schematic diagram of the second mounting plate 13 of the scissor lift assembly shown is a schematic diagram of the structure of the second mounting plate 13 near the first mounting plate. It is provided with two second slide grooves 132. Each second slide groove 132 includes two opposing second slide groove sidewalls 1321. Each second slide groove sidewall 1321 is provided with a second waist-shaped hole 1322.

[0065] In some embodiments, the first mounting plate 12 is provided with two first slide grooves 122 on the side near the second mounting plate 13; the first ends of the two first connecting rods 111 are respectively disposed in the two first slide grooves 122; each first slide groove 122 includes two opposing first slide groove sidewalls 1221, each first slide groove sidewall 1221 is provided with a first waist-shaped hole 1222; the first pin 113 passes through all the first waist-shaped holes 1222 and the first ends of the two first connecting rods 111; the second mounting plate 13 is provided with two second slide grooves 132 on the side near the first mounting plate 12; the second ends of the two second connecting rods 112 are respectively disposed in the two second slide grooves 132; each second slide groove 132 includes two opposing second slide groove sidewalls 1321, each second slide groove sidewall 1321 is provided with a second waist-shaped hole 1322; the second pin 114 passes through all the second waist-shaped holes 1322 and the second ends of the two second connecting rods 112.

[0066] The first oblong hole 1222 of the first slide groove 122 and the second oblong hole 1322 of the second slide groove 132 can serve as guides and limits, allowing the first pin 113 and the second pin 114 to slide along the first oblong hole 1222 and the second oblong hole 1322 respectively. Moreover, the first pin 113 passes through and connects all the first oblong holes 1222 and the first ends of the two first connecting rods 111, and the second pin 114 passes through and connects all the second oblong holes 1322 and the second ends of the two second connecting rods 112. The two scissor arms 11 are compressed or stretched synchronously, making the cleaning assembly 20 more stable during movement, reducing the amount of left and right sway, and making the wear of the two scissor arms 11 more uniform.

[0067] Figure 8 A partial cross-sectional view of the drive component 30 and the adapter 40 of the disc brush assembly provided in this application embodiment after connection.

[0068] In some embodiments, the disc brush assembly further includes an adapter 40 connected to the side of the first mounting plate 12 away from the second mounting plate 13. The adapter 40 covers a portion of the first opening 121 and is connected to the first mounting plate 12 via a guide rod 43. On each guide rod 43, a limiting post 44 is sleeved between the adapter 40 and the first mounting plate 12, and a first elastic element 45 is sleeved between the adapter 40 and the end of the guide rod 43 away from the first mounting plate 12.

[0069] During operation, when the brush assembly passes over a raised area on the ground, the raised area will push up the cleaning component 20, which in turn will push up the drive component 30 and the adapter 40 connected to the fixed end 31 of the drive component 30. This causes the adapter 40 to move along the guide rod 43, thereby compressing the first elastic element 45 to form a buffer. This buffers the impact caused by the cleaning component 20 suddenly encountering a raised area on the ground during operation, and protects the drive component 30 and the cleaning component 20 from the sudden force applied by the ground. When there is no more raised area on the ground, the first elastic element 45 returns to its original length and applies a certain pushing force to the adapter 40. Combined with the limiting effect of the limiting post 44, the adapter 40 also returns to its original position.

[0070] In some embodiments, the first elastic element 45 is a spring, the original length of which is the length under compression, and the amount of compression is small.

[0071] Figure 9 This is an exploded view of the drive assembly 30 and the adapter 40 of the disc brush assembly provided in the embodiments of this application. The drive assembly 30 includes a fixed end 31 and a drive end 32, and the adapter 40 includes a fixed part 41 and a connecting part 42.

[0072] In some embodiments, the adapter 40 has a U-shaped structure, including a fixing part 41 and connecting parts 42 located on both sides of the fixing part 41. The connecting parts 42 are respectively connected to both sides of the first opening 121 on the first mounting plate 12. The fixing part 41 protrudes from the connecting part 42 in a direction away from the first mounting plate 12. The connecting part 42 is connected to the first mounting plate 12 through a guide rod 43. The fixing end 31 of the drive assembly 30 is hinged to the side of the fixing part 41 facing the first mounting plate 12. The driving end 32 of the drive assembly 30 is hinged to the cleaning assembly 20.

[0073] In this embodiment, the connecting portion 42 is connected to both sides of the first opening 121 on the first mounting plate 12. The fixing portion 41 protrudes from the connecting portion 42 in a direction away from the first mounting plate 12, so the fixing portion 41 covers a part of the first opening 121. The fixing end 31 of the driving component 30 is hinged to the side of the fixing portion 41 facing the first mounting plate 12, so the driving component 30 can pass through the first opening 121 of the first mounting plate 12. Moreover, the fixing end 31 of the driving component 30 is hinged to the fixing portion 41, and the driving end 32 is hinged to the cleaning component 20. When the disc brush assembly hits an obstacle during operation, the cleaning component 20 and the driving component 30 will rotate relative to the adapter 40. At the same time, the cleaning component 20 will rotate relative to the driving end 32 of the driving component 30, thereby reducing the impact of the obstacle on the disc brush assembly, reducing the possibility of breakage at the connection between the driving component 30 and the adapter 40, and at the connection between the driving component 30 and the cleaning component 20, which is beneficial to improving the service life of the disc brush assembly.

[0074] In some embodiments, such as Figure 9 The fixing part 41 of the adapter 40 is provided with a second hinge hole 411, and the fixing end 31 of the drive assembly 30 is provided with a rotating pin 311. The fixing part 41 of the adapter 40 and the fixing end 31 of the drive assembly 30 are hinged through the second hinge hole 411 and the rotating pin 311.

[0075] In some embodiments, such as Figure 3 The drive end 32 of the drive assembly 30 is provided with a first hinge hole 321, and the cleaning assembly 20 is provided with a pin 23 on the side near the drive end 32. The pin 23 is used to pass through the first hinge hole 321 of the drive end 32 so that the drive end 32 of the drive assembly 30 is hinged to the cleaning assembly 20.

[0076] In some embodiments, there are four guide rods 43, and each connecting part 42 is provided with two guide rods 43. On each guide rod 43, a limiting post 44 is sleeved between the connecting part 42 and the first mounting plate 12, and a first elastic element 45 is sleeved between the connecting part 42 and the end of the guide rod 43 away from the first mounting plate 12 to improve the buffering effect on the disc brush assembly.

[0077] In some embodiments, the connecting part 42 is provided with a connecting hole, and the guide rod 43 passes through the connecting hole of the connecting part 42 and is connected to the first mounting plate 12. The diameter of the limiting post 44 is larger than the diameter of the connecting hole to prevent the limiting post 44 from passing directly through the connecting hole, so that the limiting post 44 can play a limiting role.

[0078] In some embodiments, the diameter of the connecting hole is larger than the diameter of the guide rod 43, and the adapter 40 can move relative to the guide rod 43, reducing the possibility of damage to the disc brush assembly when it passes over ground protrusions.

[0079] In some embodiments, the inner diameter of the first elastic element 45 is larger than the diameter of the connecting hole of the connecting portion 42. The portion around the connecting hole on the connecting portion 42 can provide support for the first elastic element 45 to prevent the first elastic element 45 from being squeezed into the connecting hole of the connecting portion 42.

[0080] In some embodiments, the guide rod 43 is threadedly connected to the first mounting plate 12.

[0081] Figure 10 An exploded view of the cleaning assembly 20 provided in the embodiments of this application shows the fixing plate 21 and the brush disk 22 of the cleaning assembly 20.

[0082] In some embodiments, the cleaning assembly 20 further includes: a fixing plate 21 and two brush discs 22; the fixing plate 21 is connected to the side of the second mounting plate 13 away from the first mounting plate 12 and covers the second opening 131; the two brush discs 22 are symmetrically arranged on the side of the fixing plate 21 away from the first mounting plate 12; the drive end 32 of the drive assembly 30 is connected to the position of the fixing plate 21 exposed in the second opening 131. The two brush discs 22 are symmetrically arranged on the side of the fixing plate 21 away from the first mounting plate 12, and the two brush discs 22 can simultaneously follow the fixing plate 21 to compress or stretch the scissor assembly 10, further causing the two scissor arms 11 to compress or stretch simultaneously by the same distance, further improving the movement consistency of the cleaning assembly 20 of the disc brush assembly.

[0083] In some embodiments, each brush disk 22 includes a brush 221 for cleaning and a brush disk drive 225 connected to the brush 221. The brush disk drive 225 is located on the side of the fixing plate 21 away from the brush 221 and is used to drive the brush 221 to rotate.

[0084] In some embodiments, the two brush disc drive members 225 are located on both sides of the scissor assembly 10 and at a certain distance from the scissor assembly 10. The mounting body 50 is provided with two clearance openings at the positions corresponding to the two brush disc drive members 225, so that the two brush disc drive members 225 can pass through, preventing interference between the brush disc drive members 225 and the scissor assembly 10 and the mounting body 50 when the brush disc drive members 225 move with the cleaning assembly 20, thus affecting the normal operation of the brush disc assembly.

[0085] In some embodiments, the drive end 32 of the drive assembly 30 is connected to the center of symmetry of the two brush discs 22 on the fixed plate 21, so that the push or pull force of the drive assembly 30 on the two brush discs 22 can be more uniform. When compressing or stretching the two scissor arms 11, the two scissor arms 11 are further compressed or stretched at the same time, and compressed or stretched by the same distance, further improving the consistency of the movement of the cleaning component 20 of the disc brush assembly.

[0086] like Figure 10 Each brush disc 22 includes: a brush 221 and a side rail 222; the side rail 222 is arc-shaped and surrounds the side of the brush 221 away from the other brush disc.

[0087] Figure 11 for Figure 10 The schematic diagram of the cleaning component shows the structure of the baffle 222. A rubber screw 223 is provided on each side of the baffle 222 in the extension direction. The baffle 222 is also provided with a baffle mounting hole 2221.

[0088] Figure 12 for Figure 10The schematic diagram shows the structure of the fixing plate 21 of the cleaning component. The fixing plate 21 is provided with four rubber plug fixing seats 224.

[0089] In some embodiments, the fixing plate 21 is provided with two connection holes 213, and each brush disk drive 225 is connected to the brush 221 through the corresponding connection hole 213.

[0090] In some embodiments, such as Figure 12 The fixing plate 21 is provided with two connectors 212 on the side near the second mounting plate 13. Each connector 212 has an L-shaped structure and includes a first connecting part 2121 and a second connecting part 2122. The first connecting part 2121 is perpendicular to the fixing plate 21 and is connected to the fixing plate 21 at one end and to the second connecting part 2122 at the other end. The second connecting part 2122 is parallel to the fixing plate 21 and is connected to the second mounting plate 13 of the scissor lift assembly 10.

[0091] Figure 13 This is a partial cross-sectional view of the fixed plate 21 and the baffle 222 of the disc brush assembly provided in this application embodiment after they are connected. The connection positions of the rubber screw and the rubber plug fixing seat, as well as the connection positions of the baffle and the fixed plate are shown.

[0092] Figure 14 for Figure 13 The enlarged view at point A is a cross-sectional view of the connection position between the retaining edge 222 and the fixing plate 21. The retaining edge 222 is provided with a retaining edge mounting hole 2221, a second elastic element 2222 and a bolt 2223. The fixing plate 21 is provided with a fixing hole 211. The bolt 2223 passes through the second elastic element 2222, the retaining edge mounting hole 2221 and the fixing hole 211 in sequence.

[0093] In some embodiments, each brush disc 22 includes: a brush 221 and a baffle 222; the baffle 222 is arc-shaped and circumferentially surrounds the side of the brush 221 away from the other brush disc; a rubber screw 223 is provided on each side of the baffle 222 in the extending direction, and each rubber screw 223 is connected to a rubber plug fixing seat 224 on the fixing plate 21 by a ball joint; the baffle 222 is also provided with a baffle mounting hole 2221, a second elastic element 2222 and a bolt 2223, and the fixing plate 21 is provided with a fixing hole 211, and the bolt 2223 passes through the second elastic element 2222, the baffle mounting hole 2221 and the fixing hole 211 in sequence; the inner diameter of the baffle mounting hole 2221 is larger than the outer diameter of the bolt 2223 and smaller than the outer diameter of the end of the second elastic element 2222 near the baffle mounting hole 2221.

[0094] In this embodiment, the brush 221 of the brush disk 22 surrounds the baffle 222 in the circumferential direction, which can reduce the possibility of the object being cleaned leaking out from around the brush 221 and improve the cleaning performance of the brush 221; the rubber screw 223 and the rubber plug fixing seat 224 can serve as positioning structures to align the baffle 222 and the fixing plate 21; the rubber screw 223 and the rubber plug fixing seat 224 are connected by a ball joint, and the rubber screw 223 can have a certain swing angle relative to the rubber plug fixing seat 224 so that the baffle 222 can swing relative to the fixing plate 21, and the bolt 2223 passes through the second elastic element 2222, the baffle mounting hole 2221 and the fixing hole 211 in sequence to connect the baffle 222 and the fixing plate 21.

[0095] The inner diameter of the flange mounting hole 2221 is larger than the outer diameter of the bolt 2223, which allows the flange 222 to have a certain amount of room to move and can move relative to the bolt 2223. Furthermore, the inner diameter of the flange mounting hole 2221 is smaller than the outer diameter of the end of the second elastic element 2222 near the flange mounting hole 2221. That is, the end of the second elastic element 2222 near the flange mounting hole 2221 can abut against the periphery of the flange mounting hole 2221. When there is no external force, the flange 222 is pressed against the fixing plate 21 of the cleaning component 20 under the action of the second elastic element 2222. When there is an external force, the flange 222 compresses the second elastic element 2222, and the flange 222 can rotate around the ball joint contact surface by a certain angle.

[0096] When the brush disc 22 needs to be replaced, slightly lift the retaining edge 222 to compress the second elastic element 2222. The retaining edge 222 moves away from the fixing plate 21, which increases the distance between the brush disc 22 and the ground, thus increasing the operating space for replacing the brush disc 22. The replacement and installation of the retaining edge 222 are also more convenient. To replace the retaining edge 222, remove the bolt 2223, take off the second elastic element 2222, and pull the rubber screw 223 of the retaining edge 222 out of the rubber plug fixing seat 224. To install the retaining edge 222, insert the rubber screw 223 into the rubber plug fixing seat 224, then install the second elastic element 2222 and tighten the bolt 2223.

[0097] With the ball joint connection between the retaining edge 222 and the fixing plate 21, when it is necessary to replace the brush 221 of the brush plate 22, the retaining edge 222 can be lifted to compress the second elastic element 2222, exposing the brush 221. This makes it easier to replace the brush 221 without removing the retaining edge 222.

[0098] In some embodiments, such as Figure 14The second elastic element 2222 is a pagoda-shaped spring. The large-diameter end of the pagoda-shaped spring is the end of the second elastic element 2222 that is close to the flange mounting hole 2221. That is, the inner diameter of the flange mounting hole 2221 is smaller than the outer diameter of the large-diameter end of the pagoda-shaped spring.

[0099] In some embodiments, the flange 222 is a rubber strip assembly.

[0100] Figure 15 for Figure 13 The enlarged view at point B shows the connection position between the rubber screw 223 and the rubber stopper 224, illustrating the specific connection relationship between the rubber screw 223 and the rubber stopper 224.

[0101] Figure 16 for Figure 11 The schematic diagram of the rubber screw 223 on the flange shown shows that one end of the rubber screw 223 is a spherical end 2231.

[0102] Figure 17 for Figure 12 The diagram shows the structure of the rubber plug fixing seat 224 on the fixing plate.

[0103] Figure 18 for Figure 17 The CC section view of the rubber stopper holder shown.

[0104] In some embodiments, the rubber stopper holder 224 has a spherical groove 2241 inside that matches the shape of the spherical end 2231 of the rubber screw 223. The spherical groove 2241 communicates with a conical through groove 2242. The spherical end 2231 of the rubber screw 223 passes through the through groove 2242 and is placed in the spherical groove 2241, thereby realizing a ball joint connection between the rubber screw 223 and the rubber stopper holder 224. The conical through groove 2242 has a V-shaped cross-sectional structure. When connecting the spherical end 2231 of the rubber screw 223 to the spherical groove 2241 of the rubber stopper holder 224, the conical through groove 2242 can serve as a guide, making it easier for the spherical end 2231 to be placed in the spherical groove 2241.

[0105] This application embodiment also provides a cleaning robot, including the disc brush assembly in any of the above embodiments. The cleaning component 20 of the disc brush assembly is connected to the second mounting plate 13 of the scissor lift assembly 10. When the drive assembly 30 drives the cleaning component 20 to move as a whole in a direction close to or away from the first mounting plate 12, the cleaning component 20 can drive the second mounting plate 13 of the scissor lift assembly 10 to move in a direction close to or away from the first mounting plate 12. The second mounting plate 13 is connected to the first mounting plate 12 through two scissor lift arms 11. The cleaning component 20 is connected to the side of the second mounting plate 13 away from the first mounting plate 12. The fixed end of the drive assembly 30 is also connected to the first mounting plate 12. When the first mounting plate 12 is connected to the main body of the cleaning robot, the entire disc brush assembly can be connected to the main body of the cleaning robot. It is not necessary to connect each component of the disc brush assembly to the main body of the cleaning robot separately, which improves the overall modularity of the disc brush assembly.

[0106] In some embodiments, the cleaning robot may be a sweeping robot or a floor scrubbing robot.

[0107] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A disc brush assembly, characterized in that, include: The scissor lift assembly (10) includes two scissor lift arms (11) and a first mounting plate (12) and a second mounting plate (13) arranged in parallel; the two ends of the scissor lift arms (11) are respectively connected to the first mounting plate (12) and the second mounting plate (13); The cleaning component (20) is connected to the side of the second mounting plate (13) of the scissor lift assembly (10) away from the first mounting plate (12); The drive assembly (30) has a fixed end (31) connected to the first mounting plate (12) and a drive end (32) connected to the cleaning assembly (20), which can drive the cleaning assembly (20) to move in a direction closer to or further away from the first mounting plate (12).

2. The disc brush assembly according to claim 1, characterized in that, The first mounting plate (12) and the second mounting plate (13) are respectively provided with a first opening (121) and a second opening (131), the first opening (121) and the second opening (131) are located between the two scissor arms (11); the drive assembly (30) passes through the first opening (121) and the second opening (131), and the drive end (32) of the drive assembly (30) is connected to the side of the cleaning assembly (20) near the first mounting plate (12).

3. The disc brush assembly according to claim 1, characterized in that, Each scissor arm (11) includes a first link (111) and a second link (112) that are cross-connected and hinged at the middle; the first links (111) of the two scissor arms (11) are parallel to each other, and the second links (112) are parallel to each other; The first end of the first link (111) in the two scissor arms (11) is hinged to the first mounting plate (12) through the same first pin (113), and the second end is hinged to the second mounting plate (13) through different pins; the first end of the second link (112) in the two scissor arms (11) is hinged to the first mounting plate (12) through different pins, and the second end is hinged to the second mounting plate (13) through the same second pin (114); The first pin (113) is slidably connected to the first mounting plate (12), and the second pin (114) is slidably connected to the second mounting plate (13).

4. The disc brush assembly according to claim 3, characterized in that, The first mounting plate (12) is provided with two first sliding grooves (122) on the side near the second mounting plate (13); the first ends of the two first connecting rods (111) are respectively provided in the two first sliding grooves (122); each first sliding groove (122) includes two opposing first sliding groove sidewalls (1221), each first sliding groove sidewall (1221) is provided with a first waist-shaped hole (1222); the first pin (113) passes through all the first waist-shaped holes (1222) and the first ends of the two first connecting rods (111); The second mounting plate (13) is provided with two second slide grooves (132) on the side near the first mounting plate (12); the second ends of the two second connecting rods (112) are respectively provided in the two second slide grooves (132); each second slide groove (132) includes two oppositely arranged second slide groove sidewalls (1321), each second slide groove sidewall (1321) is provided with a second waist-shaped hole (1322); the second pin (114) passes through all the second waist-shaped holes (1322) and the second ends of the two second connecting rods (112).

5. The disc brush assembly according to claim 2, characterized in that, Also includes: An adapter (40) is connected to the side of the first mounting plate (12) away from the second mounting plate (13). The adapter (40) covers a portion of the first opening (121). The adapter (40) is connected to the first mounting plate (12) via a guide rod (43). On each guide rod (43), a limiting post (44) is provided between the adapter (40) and the first mounting plate (12), and a first elastic element (45) is provided between the adapter (40) and the end of the guide rod (43) away from the first mounting plate (12).

6. The disc brush assembly according to claim 5, characterized in that, The adapter (40) has a U-shaped structure, including a fixing part (41) and connecting parts (42) located on both sides of the fixing part (41). The connecting parts (42) are respectively connected to both sides of the first opening (121) on the first mounting plate (12). The fixing part (41) protrudes from the connecting part (42) in a direction away from the first mounting plate (12). The connecting part (42) is connected to the first mounting plate (12) via the guide rod (43); The fixed end (31) of the drive assembly (30) is hinged to the side of the fixed part (41) facing the first mounting plate (12); The drive end (32) of the drive assembly (30) is hinged to the cleaning assembly (20).

7. The disc brush assembly according to claim 2, characterized in that, The cleaning assembly (20) also includes: a fixing plate (21) and two brush discs (22); The fixing plate (21) is connected to the second mounting plate (13) on the side away from the first mounting plate (12) and covers the second opening (131); the two brush discs (22) are symmetrically arranged on the side of the fixing plate (21) away from the first mounting plate (12); The drive end (32) of the drive assembly (30) is connected to the position of the fixing plate (21) exposed in the second opening (131).

8. The disc brush assembly according to claim 7, characterized in that, Each brush disc (22) includes: a brush (221) and a retaining edge (222); the retaining edge (222) is arc-shaped, and surrounds the brush (221) of the brush disc (22) on the side away from the other brush disc (22); a rubber screw (223) is provided on each side of the retaining edge (222) in the extending direction, and each rubber screw (223) is connected to a rubber plug fixing seat (224) on the fixing plate (21) by a ball joint; The baffle (222) is also provided with a baffle mounting hole (2221), a second elastic element (2222) and a bolt (2223). The fixing plate (21) is provided with a fixing hole (211). The bolt (2223) passes through the second elastic element (2222), the baffle mounting hole (2221) and the fixing hole (211) in sequence. The inner diameter of the baffle mounting hole (2221) is larger than the outer diameter of the bolt (2223) and smaller than the outer diameter of the end of the second elastic element (2222) near the baffle mounting hole (2221).

9. The disc brush assembly according to claim 7, characterized in that, The drive end (32) of the drive assembly (30) is connected to the center of symmetry of the two brush disks (22) on the fixed plate (21).

10. A cleaning robot, characterized in that, Includes the disc brush assembly as described in any one of claims 1-9.

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