Squeegee assembly and scrubber

Abstract

The application relates to a squeegee strip assembly and a scrubber. The squeegee strip assembly comprises a squeegee strip body and a driving mechanism. The squeegee strip body comprises a hard part and a squeegee part. The squeegee strip body comprises the hard part and the squeegee part. The hard part is configured to rotate around a first direction, and during the rotation of the hard part, the first end of the hard part rises and falls in the height direction of the scrubber. The squeegee part is connected to the first end. The driving mechanism is in transmission cooperation with the hard part and is configured to drive the hard part to rotate. The squeegee strip assembly drives the hard part to rotate through the driving mechanism, and then drives the squeegee part to rise and fall, so as to realize the switching between the off-ground and the ground-adhesion of the squeegee part. In other words, the rising and falling action of the squeegee part can be converted into a rotating action, and the distance of the partial rising and falling is decomposed into the horizontal displacement by the rotating action. Therefore, in the limited height size range of the scrubber, the lifting height that can be reached by the squeegee strip assembly is higher, which helps to reduce the probability that the particulate matter is pushed away and cannot be twisted into the suction by the rolling brush.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a scraping strip assembly and a scrubber. BACKGROUND

[0002] The scrubber generally sets a scraping strip at the rear end of the rolling brush. When pushing forward, the scraping strip can scrape the dirt left on the ground. However, in actual use, the user will repeatedly push and pull forward and backward, so that the dirt left on the ground cannot be effectively scraped when pulling backward.

[0003] In the related art, some scrubbers are provided with a scraping strip at the front end. The scraping strip runs up and down. However, due to the arc-shaped appearance of the front end of the top cover, the travel of the scraping strip is limited. When there is a larger particle at the front end, the scraping strip at the front end is lifted, and the height from the ground is very small, so that the particle is pushed away, and finally the particle cannot be twisted into the rolling brush and sucked away. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a scraping strip assembly and a scrubber capable of improving the lifting height of the scraping strip.

[0005] A scraping strip assembly for a scrubber, comprising:

[0006] a scraping strip body, comprising a hard part and a scraping strip part, the hard part is configured to be able to rotate around a first direction, and during the rotation of the hard part, the first end thereof rises and falls in the height direction of the scrubber, and the scraping strip part is connected to the first end; and

[0007] a driving mechanism, in transmission cooperation with the hard part, and configured to be able to drive the hard part to rotate.

[0008] In one embodiment, the driving mechanism comprises a driver and a sliding block, the sliding block is in cooperation with the hard part, the driver is in transmission connection with the sliding block, and is configured to be able to drive the sliding block to rotate the hard part.

[0009] In one embodiment, the sliding block is configured to be able to move along a second direction under the driving of the driver, the sliding block has a cooperation groove, the hard part has a cooperation shaft, the cooperation shaft is arranged in the cooperation groove, and is configured to be able to rotate around the first direction and move along a third direction in the cooperation groove; wherein, the first direction, the second direction and the third direction intersect with each other.

[0010] In one embodiment, the sliding block has a rack part, the longitudinal direction of the rack part is arranged along the second direction, the driving mechanism further comprises a driving gear, the driving gear is in mesh with the rack part, and is in transmission connection with the driver.

[0011] In one of the embodiments, at least one of the rack portion and the drive gear has a guide surface at the edge thereof in the axial direction of the drive gear.

[0012] In one of the embodiments, the hard portion is configured to be raised at the first end when rotated in the first direction, and to be lowered at the first end when rotated in the second direction.

[0013] The drive mechanism further comprises a resilient member abutting against the slider, and the resilient member is configured to provide a driving force for driving the slider to rotate the hard portion in the first direction, and the driver is configured to provide a driving force for driving the slider to rotate the hard portion in the second direction.

[0014] In one of the embodiments, the hard portion is in the shape of a circular arc around a first axis, and the first axis is parallel to the first direction, the hard portion is configured to rotate around the first axis, and the first end is one end of the hard portion in the circumferential direction of the hard portion around the first axis.

[0015] In one of the embodiments, the squeegee assembly further comprises a cover structure having a sandwich layer and an extension opening, the sandwich layer has an arc-shaped portion, the arc-shaped portion is arranged around the first direction; the hard portion is configured to be at least partially located in the sandwich layer and to slide along the arc-shaped portion; the extension opening is located at one end of the arc-shaped portion in the circumferential direction around the first direction and communicates the inside and outside of the sandwich layer, and the squeegee body can be extended and retracted outward from the extension opening.

[0016] In one of the embodiments, the cover structure has a stop block, the slider has an assembly groove and a positioning column, the assembly groove is arranged in the sliding direction of the slider, the stop block is located in the assembly groove, the resilient member is a spring and is arranged in the assembly groove, one end of the resilient member abuts against the stop block, and the other end of the resilient member is sleeved on the positioning column.

[0017] In one of the embodiments, the first end has a first position and a second position in the height direction.

[0018] The hard portion has a first limiting structure, the cover structure has a limiting boss, the first limiting structure is configured to abut against the limiting boss when the first end is at the first position and to generate a limit to block the first end from descending in the height direction; and / or, the cover structure has a second limiting structure, the hard portion has a resilient protrusion, the second limiting structure is configured to abut against the resilient protrusion when the first end is at the second position and to generate a limit to block the first end from ascending in the height direction.

[0019] In one embodiment, the arcuate portion is disposed around the periphery of the roller brush of the floor scrubber, and the protrusion is located on the front side of the roller brush and is disposed downward.

[0020] In one embodiment, the upper cover structure includes a top cover and an inner cover, the top cover and the inner cover being connected and spaced apart to form the interlayer, and the inner cover having a water storage cavity and a water level.

[0021] In one embodiment, the upper cover structure has a positioning and fitting structure, and is detachably connected to the lower cover structure of the floor scrubber through the positioning and fitting structure.

[0022] In one embodiment, the rigid part and the scraper part are integrally formed; and / or, the rigid part is made of hard rubber and the scraper part is made of soft rubber.

[0023] A floor scrubbing machine includes the aforementioned squeegee assembly.

[0024] The aforementioned squeegee assembly and floor scrubber utilize a drive mechanism to rotate the rigid part, which in turn raises and lowers the squeegee, allowing it to switch between being off the ground and flush with the ground. In other words, the raising and lowering motion of the squeegee can be converted into a rotational motion, with some of the distance traveled during the raising and lowering being decomposed into horizontal displacement. Therefore, within the limited height range of the floor scrubber, the squeegee assembly can increase the lifting height of the squeegee, resulting in a higher height off the ground after it rises, which helps reduce the probability that particles are pushed away and cannot be caught and sucked up by the roller brush. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a floor scrubber with a squeegee assembly in one embodiment of this application, when the squeegee body is in working condition.

[0027] Figure 2 for Figure 1 The diagram shows an enlarged view of the floor scrubber at point A.

[0028] Figure 3 for Figure 1 The diagram shown is a structural schematic of a floor scrubber with its squeegee body in a state of being off the ground.

[0029] Figure 4 for Figure 3 The diagram shows an enlarged view of the floor scrubber at point B.

[0030] Figure 5 As shown in the structure diagram of the squeegee body in the scrubber. Figure 1

[0031] Figure 6 As shown in the structure diagram of the slider and the driving gear in the scrubber. Figure 1

[0032] Figure 7 As shown in the partial structure diagram of the scrubber when the first end of the hard part is in the first position. Figure 1

[0033] Figure 8 As shown in the partial structure diagram of the scrubber when the first end of the hard part is in the second position. Figure 1

[0034] Figure 9 As shown in the exploded structure diagram of the scrubber. Figure 1

[0035] Figure 10 As shown in another exploded structure diagram of the scrubber. Figure 1

[0036] Figure 11 As shown in the structure diagram of the assembly of the upper cover structure and the squeegee body in the scrubber. Figure 1

[0037] BRIEF DESCRIPTION OF THE DRAWINGS: 10, squeegee body; 11, hard part; 111, first end; 113, matching shaft; 115, second end; 117, first limiting structure; 119, elastic protrusion; 13, squeegee part; 30, driving mechanism; 31, driver; 32, slider; 321, matching groove; 323, rack part; 325, assembly groove; 327, positioning column; 329, rack groove; 33, elastic member; 34, driving gear; 35, guide surface; 50, upper cover structure; 51, interlayer; 511, arc part; 52, outlet; 53, top cover; 531, limiting boss; 54, inner cover; 541, stop block; 542, second limiting structure; 543, water storage cavity; 544, water adding position; 545, assembly position; 551, first buckling position; 552, joint; 200, scrubber; 210, rolling brush; 220, lower cover structure; 221, second buckling position; 222, butt joint hole. DETAILED DESCRIPTION

[0038] ​​​​​​​In order to make the above objectives, features and advantages of the present application more clear and easily understood, the detailed description of the specific embodiments of the present application is made below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways other than those described herein without departing from the spirit of the present application, and it is understood that similar improvements can be made by those skilled in the art in light of the above disclosure, therefore the present application is not limited to the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing and simplifying the description of the present application, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] In addition, if the term "and / or" appears, "and / or" is only a description of the relationship between the associated objects, and indicates that there can be three relationships, for example, A and / or B, which can represent the relationship between A and B: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it. If the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, four, five, etc., unless otherwise specifically limited.

[0041] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In the present application, unless specifically defined and limited otherwise, if there is a description of a first feature "on" or "under" a second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0043] It should be noted that if an element is referred to as being "fixed" or "set" to another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and do not represent the only implementation.

[0044] As described in the background, in the related art, the up-down lifting direction of the front squeegee is equivalent to the height direction of the scrubber 200. Therefore, due to the height of the scrubber 200 at the front end, the lifting stroke of the front squeegee is also very limited, which leads to the problem of insufficient ground clearance after the squeegee is lifted. In addition, the structure for lifting the front squeegee in the related art is also relatively complex, and is inconvenient to disassemble, assemble and clean.

[0045] Please refer to Figures 1 to 5 The squeegee assembly provided in an embodiment of the present application includes a squeegee body 10 and a driving mechanism 30. The squeegee body 10 includes a hard portion 11 and a squeegee portion 13. The squeegee body 10 includes the hard portion 11 and the squeegee portion 13. The hard portion 11 is configured to be able to rotate around a first direction, and during the rotation of the hard portion 11, the first end 111 thereof is lifted in the height direction of the scrubber 200. The squeegee portion 13 is connected to the first end 111. The driving mechanism 30 is in transmission cooperation with the hard portion 11 and is configured to be able to drive the hard portion 11 to rotate.

[0046] In an embodiment, the squeegee assembly is used in the scrubber 200, and in particular, can be used as the front squeegee of the scrubber 200. In other embodiments, the squeegee assembly can also be used in a sweeper, a scrubbing and decontamination integrated machine, etc., which is not specifically limited here.

[0047] The hard part 11 is made of a material with high compression resistance and strength, is not easy to deform or break, has good driving capacity, and can respond in time and move accordingly under the driving of the driving mechanism 30. The hard part 11 can be, but is not limited to, a hard rubber material, such as high styrene rubber or polystyrene, ABS plastic, polyvinyl chloride, etc. The scraping strip part 13 is used for direct contact and cleaning of the ground, and is made of a soft material to fit the ground for cleaning work. The scraping strip part 13 can be, but is not limited to, a soft rubber material, such as natural rubber, synthetic rubber, polypropylene, polyethylene, silicone, etc.

[0048] It can be understood that the first direction (e.g. Figure 1 perpendicular to the plane of the paper and the X direction shown in Figure 9 The height direction of the scrubber 200 is perpendicular to the horizontal plane. For ease of understanding, the following examples are described with the first direction parallel to the horizontal plane.

[0049] The hard part 11 can rotate around the first direction under the driving of the driving mechanism 30, and the first end 111 can be raised and lowered. Correspondingly, the scraping strip part 13 connected to the first end 111 of the hard part 11 is also raised and lowered, and the scraping strip body 10 has a ground clearance state in which the scraping strip part 13 is away from the ground and a working state in which the scraping strip part 13 is attached to the ground.

[0050] The scraping strip assembly drives the hard part 11 to rotate through the driving mechanism 30, and then drives the scraping strip part 13 to raise and lower, realizing the switching between the ground clearance and the ground attachment. In other words, the lifting action of the scraping strip part 13 can be converted into a rotating action, and the distance of the partial lifting is decomposed into horizontal displacement by the rotating action. Therefore, within the limited height dimension of the scrubber 200, the scraping strip assembly can improve the lifting height of the scraping strip part 13, so that the ground clearance height after lifting is higher, which helps to reduce the probability that the particles are pushed away and cannot be twisted into the suction by the roller brush 210.

[0051] In some embodiments, the hard part 11 and the scraping strip part 13 are integrally formed. It can be understood that the hard part 11 and the scraping strip part 13 can be integrally injection molded at the molding stage, or can be integrally molded by secondary injection molding, etc.

[0052] In this way, the hard part 11 and the scraping strip part 13 are closely connected. In addition, there is no connection gap between the hard part 11 and the scraping strip part 13 to prevent dust and particles from being taken in.

[0053] In some embodiments, the hard part 11 is in the shape of a circular arc around the first axis, and the first axis is parallel to the first direction. The hard part 11 is configured to be able to rotate around the first axis, and the first end 111 is one end of the hard part 11 in the circumferential direction around the first axis.

[0054] It can be understood that the rigid part 11 can be generally regarded as a part of a cylindrical structure, and the first axis is the axis of the cylindrical structure.

[0055] In this way, the rotation of the rigid part 11 is more stable, and the required rotation space is smaller. In addition, the rotation of the rigid part 11 can be more effectively converted into the displacement of the blade part 13 connected to the first end 111 thereof.

[0056] Please refer to Figures 6 to 8 In some embodiments, the driving mechanism 30 further comprises a driver 31 and a sliding block 32, and the sliding block 32 is matched with the rigid part 11. The driver 31 is drivingly connected with the sliding block 32 and is configured to be able to drive the sliding block 32 to drive the rigid part 11 to rotate. It can be understood that the driver 31 can be but is not limited to a motor.

[0057] In this way, the up-and-down stroke of the blade part 13 is mainly affected by the position of the sliding block 32, and only the up-and-down and left-and-right positions of the sliding block 32 need to be confirmed during design, so as to realize the maximum stroke output.

[0058] Further, the rigid part 11 is configured to ascend when rotating around the first direction along a first turning direction, and descend when rotating around the first direction along a second turning direction.

[0059] The driving mechanism 30 further comprises a resilient member 33, the resilient member 33 abuts against the sliding block 32, and the resilient member 33 is configured to be able to provide a driving force for driving the sliding block 32 to drive the rigid part 11 to rotate along the first turning direction, and the driver 31 is configured to be able to at least provide a driving force for driving the sliding block 32 to drive the rigid part 11 to rotate along the second turning direction. It can be understood that the resilient member 33 can be but is not limited to a spring.

[0060] In this way, the rigid part 11 can be rotated to a state that the blade part 13 is away from the ground under the action of the resilient member 33 or under the combined action of the resilient member 33 and the driver 31, so that the blade body 10 is in a state of being away from the ground. At this time, a sufficient gap is formed between the blade body 10 and the ground, so that the particles can pass through and be twisted into the roller brush 210. The rigid part 11 can also be rotated to a state that the blade part 13 is close to the ground under the action of the driver 31, overcoming the elastic force, so that the blade body 10 is in a working state, i.e., the initial state of the blade body 10. At this time, the blade body 10 can clean the ground through the blade part 13.

[0061] In some embodiments, the sliding block 32 is configured to be able to move along the second direction (e.g. Figure 1The Y direction) moves. The slider 32 has a matching groove 321, and the hard part 11 has a matching shaft 113 arranged in the matching groove 321 and configured to be able to rotate in the matching groove 321 around a first direction and move along a third direction (as shown in the Z direction). Figure 1 The first direction, the second direction, and the third direction are perpendicular to each other.

[0062] The first direction, the second direction, and the third direction are perpendicular to each other, and the third direction is a vertical direction. The second direction corresponds to the front-rear direction of the scrubber 200, and the third direction corresponds to the height direction of the scrubber 200. The matching groove 321 of the slider 32 can be a U-shaped groove, and the groove depth direction is the third direction.

[0063] The matching shaft 113 can be located at the second end 115 of the hard part 11, which is the other end opposite the first end 111 in the circumferential direction around the first direction.

[0064] In this way, the rotation of the hard part 11 around the first direction can be decomposed into its movement along the second direction and the third direction at the matching shaft 113, and the driving of the hard part 11 is realized by driving the slider 32 to translate along the second direction by the driver 31.

[0065] Further, the slider 32 has a rack portion 323, and the longitudinal direction of the rack portion 323 is arranged along the second direction. The driving mechanism 30 further includes a driving gear 34 engaged with the rack portion 323 and drivingly connected with the driver 31.

[0066] It can be understood that the axial direction of the driving gear 34 is perpendicular to the second direction. The rack portion 323 has a plurality of engagement teeth arranged in sequence along the second direction. Specifically, the tooth width direction of the engagement teeth is the third direction, the output shaft of the driver 31 is arranged along the third direction, and the driving gear 34 is sleeved on the output shaft of the driver 31.

[0067] In this way, the driver 31 can drive the slider 32 to slide along the second direction through the driving gear 34 and the rack portion 323 engaged with the driving gear 34. The driving mode of the driving gear 34 and the rack portion 323 is relatively stable in transmission, has low noise, and has relatively low requirements on the motor torque.

[0068] Specifically, in the axial direction of the driving gear 34, at least one of the rack portion 323 and the driving gear 34 has a guide surface 35 at the edge. In other words, the edge in the width direction of the engagement teeth of at least one of the rack portion 323 and the driving gear 34 forms the guide surface 35.

[0069] It can be understood that the guide surface 35 can generate a guide for the engagement of the rack portion 323 and the drive gear 34. In an embodiment, the edges of the engagement teeth of the rack portion 323 and the drive gear 34 in the width direction form the guide surface 35.

[0070] Thus, during assembly, the rack portion 323 and the drive gear 34 can be assembled to each other in the axial direction of the drive gear 34, i.e., the third direction, to achieve engagement, and the guide surface 35 can reduce the difficulty of assembly and engagement of the two.

[0071] Please refer to Figures 9 to 11 In some embodiments, the squeegee assembly further comprises a cover structure 50 having a sandwich layer 51 and an extension opening 52. The sandwich layer 51 has an arc-shaped portion 511 arranged around the first direction. The rigid portion 11 is configured to be at least partially located in the sandwich layer 51 and can slide along the arc-shaped portion 511. The extension opening 52 is located at one end of the arc-shaped portion 511 around the first direction and communicates inside and outside the sandwich layer 51. The squeegee body 10 can be extended and retracted outwardly from the extension opening 52.

[0072] In other words, the rigid portion 11 is at least partially located in the sandwich layer 51, and sliding along the arc-shaped portion 511 of the sandwich layer 51 achieves rotation around the first direction. The squeegee portion 13 can be at least partially extended from the extension opening 52 and retracted with the rotation of the rigid portion 11.

[0073] Thus, the rigid portion 11 can stably rotate around the first direction, and the structure for achieving the rotation is simple and requires fewer parts. At the same time, the squeegee portion can normally extend and retract through the extension opening 52 of the cover structure 50 to meet the needs of switching the state of the squeegee body.

[0074] Further, the arc-shaped portion 511 is arranged around the circumferential side of the roller brush 210 of the scrubber 200, and the extension opening 52 is located at the front side of the roller brush 210 and is arranged downward.

[0075] It can be understood that the first direction is parallel to the axis of the roller brush 210, and the rigid portion 11, the arc-shaped portion 511, and the roller brush 210 can be coaxially arranged, and the first axis is the rotation axis of the roller brush 210. The front side of the roller brush 210 is the front side in the front-rear direction when the scrubber 200 is in use.

[0076] Thus, as a front squeegee of the scrubber 200, when the rigid portion 11 rotates, the squeegee portion can be raised and lowered upward and downward from the extension opening 52 to achieve lifting off the ground and sticking to the ground.

[0077] Further, the squeegee body 10 further comprises a rolling member arranged on the rigid portion 11, and the rigid portion 11 slides along the arc-shaped portion 511 through the rolling member.

[0078] It can be understood that the rolling member can be a ball, a roller, etc., and the hard portion 11 can contact the inner wall of the interlayer 51 through the rolling member.

[0079] In this way, the rolling member can reduce the surface of the hard portion 11 and the inner wall of the interlayer 51, and thus the hard portion 11 can slide along the arc-shaped portion 511 more smoothly.

[0080] In some embodiments, the upper cover structure 50 has a sliding groove, and the sliding block 32 is configured to be able to slide along the sliding groove. The driver 31 is in transmission connection with the sliding block 32 and is configured to be able to drive the hard portion 11 to slide along the arc-shaped portion 511 by driving the sliding block 32.

[0081] It can be understood that the sliding groove extends in the second direction. The scraper body 10, the elastic member 33, and the sliding block 32 are arranged in the interlayer 51 of the upper cover structure 50, and the top cover 53 forms the sliding groove for guiding the sliding block 32 to slide.

[0082] In this way, the driver 31 can drive the hard portion 11 to rotate by the sliding block 32 under the guidance of the sliding groove.

[0083] In some embodiments, the upper cover structure 50 has a stop block 541, the sliding block 32 has an assembly groove 325 and a positioning column 327, the assembly groove 325 extends in the sliding direction of the sliding block 32, i.e., the second direction, and the stop block 541 is located in the assembly groove 325. The elastic member 33 is a spring and is arranged in the assembly groove 325, one end of the elastic member 33 abuts against the stop block 541, and the other end is sleeved on the positioning column 327.

[0084] It can be understood that, during the sliding of the sliding block 32 in the second direction, the sliding block 32 slides along the sliding groove relative to the upper cover structure 50, and correspondingly, the stop block 541 of the upper cover structure 50 moves relative to the sliding block 32 in the assembly groove 325.

[0085] In this way, the elastic member 33 can abut between the stop block 541 of the upper cover structure 50 and the sliding block 32, and thus a driving force for pushing the sliding block 32 in the second direction can be generated. The assembly groove 325 and the positioning column 327 can improve the assembly stability of the elastic member 33.

[0086] In addition, the sliding block 32 can also have a rack groove 329, which also extends in the second direction, and one side groove wall of the rack groove 329 is formed as a rack portion 323. The driving gear 34 is located in the rack groove 329 and is in meshing connection with the rack portion 323.

[0087] In some embodiments, the first end 111 has a first position and a second position in the height direction. The hard portion 11 has a first limiting structure 117, and the upper cover structure 50 has a limiting boss 531. The first limiting structure 117 is configured to be in limiting connection with the limiting boss 531 when the first end 111 is in the first position (e.g., the first end 111 is in the first position when the scraper body 10 is in the first position as shown in FIG. 1), and the first limiting structure 117 is configured to be out of limiting connection with the limiting boss 531 when the first end 111 is in the second position (e.g., the first end 111 is in the second position when the scraper body 10 is in the second position as shown in FIG. 2). Figure 1When (as shown), it abuts against the limiting boss 531 and creates a limiting position that prevents the first end 111 from descending in the height direction; and / or, the upper cover structure 50 has a second limiting structure 542, the rigid part 11 has an elastic protrusion 119, and the second limiting structure 542 is configured such that the first end 111 is in a second position (as shown). Figure 2 When (as shown), it abuts against the elastic protrusion 119 and creates a limit that prevents the first end 111 from rising in the height direction.

[0088] Understandably, when the first end 111 is in the first position, the scraper body 10 is in the working state where the scraper section 13 is on the ground. When the first end 111 is in the second position, the scraper body 10 is in the state where the scraper section 13 is off the ground, and at this time the position of the scraper section 13 reaches its highest point.

[0089] Specifically, the first limiting structure 117 can be a limiting rib. When the first end 111 is in the first position, the first limiting structure 117 abuts against the inner edge of the limiting protrusion 531 at the protrusion 52. When the first end 111 is in the second position, the second limiting structure 542 abuts against the elastic protrusion 119 of the rigid part 11.

[0090] Thus, the lifting and lowering of the first end 111 is limited by the first limiting structure 117 and the second limiting structure 542, thereby defining its lifting and lowering range. Furthermore, since the slider 32 and the scraper body 10 are movably connected and not fixed, during resetting, due to machining and assembly errors, there is a clearance fit between the scraper body 10 and each component, resulting in vibration and abnormal noise during operation. The elastic protrusion 119 can effectively press against the second limiting structure 542 of the inner cover 54, reducing the noise caused by vibration.

[0091] Understandably, in other embodiments, the rigid part 11 may not have the first limiting structure 117, the rack part 323 may be set to a suitable length, and the driver 31 may output a fixed thrust. When the scraper part 13 comes into contact with the ground, the driver 31 can no longer drive the rack part 323 but can only keep the scraper part 13 in contact with the ground. In this way, even if the scraper part 13 wears out after long-term use, the driver 31 can push the scraper part 13 down, making its cleaning effect more stable.

[0092] In some embodiments, the upper cover structure 50 includes a top cover 53 and an inner cover 54, the top cover 53 and the inner cover 54 are connected and spaced apart to form a sandwich 51, and the inner cover 54 has a water storage cavity 543 and a water level 544.

[0093] The top cover 53 can be part of the housing of the scrubber 200, and the inner cover 54 is below the top cover 53 and inside the housing of the scrubber 200. The top cover 53 and the inner cover 54 are at least partially spaced to form the interlayer 51, i.e. the squeegee body 10 is clamped between the top cover 53 and the inner cover 54 and can slide along the surface of at least one of them towards the other.

[0094] The inner cover 54 is concave to form a water storage cavity 543, which can be used as a clean water tank to store clean water, and the water filling position 544 is used to fill clean water into the water storage cavity 543.

[0095] In this way, the upper cover mechanism for moving the squeegee body 10 is integrated with the water storage cavity 543 as a clean water tank, which can simplify the structure of the scrubber 200 and help to reduce the number of parts.

[0096] Further, the upper cover structure 50 has a positioning and matching structure, and is detachably connected with the lower cover structure 220 of the scrubber 200 through the positioning and matching structure.

[0097] Specifically, the positioning and matching structure includes a first buckle 551 and a joint 552, and the lower cover structure 220 has a second buckle 221 matched with the first buckle 551 and a butt joint hole 222 matched with the joint 552. The lower cover structure 220 is part of the housing of the scrubber 200.

[0098] In this way, the squeegee body 10 is installed on the upper cover structure 50 and can be detached together with the upper cover mechanism from the lower cover structure 220 of the scrubber 200, so as to disassemble and clean the squeegee body 10 and the upper cover structure 50.

[0099] For the convenience of understanding, the installation process of the squeegee assembly is briefly described as follows:

[0100] The hard part 11 and the wiper part 13 of the wiper body 10 can be an integral molding. When installed, the wiper body 10 is first installed on the inner cover 54, and then the slider 32 is installed, and the matching groove 321 of the slider 32 is assembled with the matching shaft 113 of the hard part 11. Then, the spring is installed, one end of the spring is sleeved on the positioning column 327 and abuts against the slider 32 in the assembly groove 325, and the other end abuts against the stopper 541 of the inner cover 54. At this time, under the action of the spring, the hard part 11 rotates clockwise, and the elastic protrusion 119 abuts against the second limiting structure 542 of the inner cover 54. Finally, the top cover 53 is installed, and the final upper cover structure 50 is assembled with the wiper body 10 and part of the driving mechanism 30. The inner cover 54 of the upper cover structure 50 is further provided with a water storage cavity 543, a water adding position 544, and a connector 552 capable of cooperating with the lower cover structure 220, so as to form a detachable connection with the lower cover structure 220. The driver 31 and the driving gear 34 are both installed in the lower cover structure 220. The upper cover structure 50 also has an assembly position 545. When the upper cover structure 50 is assembled to the lower cover structure 220, the driving gear 34 is just clamped into the rack groove 329 of the slider 32 on the upper cover structure 50 through the assembly position 545. In order to facilitate assembly, the driving gear 34 and the rack part 323 are both provided with a guide surface 35. At the same time, the upper cover structure 50 is provided with a first buckling position 551 and a connector 552, which are respectively fixedly matched with the second buckling position 221 and the connecting hole 222 of the corresponding lower cover structure 220, so as to finally realize the connection and fixation of the upper cover structure 50 and the lower cover structure 220, and the disassembly is very convenient.

[0101] The above-mentioned wiper assembly, as the wiper body 10 of the front wiper and the water storage cavity 543 of the water tank, are integrated in the detachable upper cover structure 50. When used by the user, the cleaning of the wiper and the adding of water can be completed at one time, without separate treatment, which greatly improves the user experience.

[0102] Specifically, the working process of the scraper assembly is roughly as follows: When the roller brush 210 moves forward, the driver 31 returns to its initial state. At this time, the slider 32 moves horizontally backward under the joint drive of the drive gear 34 and the elastic element 33, thereby pulling the rigid part 11 to rotate clockwise and causing the scraper part 13 to rise. When the elastic protrusion 119 on the rigid part 11 abuts against the second limiting structure 542 on the inner cover 54, the scraper part 13 completes its upward reset. Since the slider 32 and the scraper body 10 are movably connected and not fixed, during reset, due to the influence of processing and assembly errors, there is a clearance fit between the scraper body 10 and each part, resulting in vibration and abnormal noise during operation. The elastic protrusion 119 can effectively abut against the second limiting structure 542 of the inner cover 54, reducing the noise caused by vibration. In addition, the vertical stroke of the scraper 13 is mainly affected by the position of the slider 32. During the design, it is only necessary to confirm the vertical and horizontal position of the slider 32 to achieve the maximum stroke output. For example, the lifting height h of the scraper 13 can be between 10mm and the diameter of the roller brush 210 (i.e., twice the distance between the ground and the axis of the roller brush 210). In this way, the scraper assembly achieves a greater lifting height of the scraper 13, avoiding the problem of large particles being pushed away by the scraper and not being able to be caught. When the roller brush 210 retracts, the driver 31 drives the slider 32 to move horizontally forward through the drive gear 34, thereby pushing the scraper part to rotate counterclockwise, causing the scraper 13 to descend. When the first limiting structure 117 on the scraper body 10, i.e. the limiting rib, abuts against the limiting boss 531 of the top cover 53, the scraper 13 also touches the ground at the same time, thereby achieving the purpose of scraping and cleaning the residual dirt on the ground when the floor scrubber 200 is pulled back, improving cleaning efficiency.

[0103] In this way, the scraper assembly effectively solves the problem of insufficient stroke of the scraper section 13, achieving a cleaning effect for large particles. It also features a simple structure, few parts, and low cost. The scraper assembly is integrated with the water storage chamber 543 (which serves as the clean water tank) and is detachable, making cleaning convenient and greatly improving the user experience. Specifically: 1. When moving forward, the scraper section 13 rises, solving the problem of insufficient stroke and preventing large particles from being caught. 2. When pulling backward, the scraper section 13 descends to touch the ground, solving the problem of residual dirt on the ground after pulling backward and improving cleaning efficiency. 3. The scraper body 10 is connected to the upper cover structure 50 with the water storage chamber 543 and can be disassembled and reassembled together. Cleaning the scraper body 10 and adding water can be completed in one step, eliminating the need for separate processing and greatly improving the user experience.

[0104] This application also provides a floor scrubbing machine 200, including the aforementioned scraper assembly.

[0105] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0106] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific manner, but should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A squeegee bar assembly for a scrubber, characterized by, The squeegee assembly comprises: a squeegee body (10) comprising a rigid part (11) configured to be rotatable about a first direction, and a first end (111) of the rigid part (11) is raised in a height direction of the scrubber during rotation of the rigid part (11), and a squeegee part (13) connected to the first end (111); and a driving mechanism (30) in driving cooperation with the rigid part (11) and configured to drive the rigid part (11) to rotate.

2. The wiper strip assembly of claim 1, wherein The driving mechanism (30) comprises a driver (31) and a sliding block (32) in cooperation with the rigid part (11); the driver (31) is in driving connection with the sliding block (32) and is configured to drive the sliding block (32) to rotate the rigid part (11).

3. The wiper blade assembly of claim 2, wherein, The sliding block (32) is configured to move along a second direction under the driving of the driver (31); the sliding block (32) has a cooperation groove (321), and the rigid part (11) has a cooperation shaft (113) arranged in the cooperation groove (321) and configured to rotate about the first direction and move along a third direction in the cooperation groove (321); wherein the first direction, the second direction and the third direction intersect with each other.

4. The wiper blade assembly of claim 3, wherein, The sliding block (32) has a rack part (323) with a longitudinal direction arranged along the second direction; the driving mechanism (30) further comprises a driving gear (34) in meshing cooperation with the rack part (323) and in driving connection with the driver (31).

5. The wiper blade assembly of claim 4, wherein, At least one of the rack part (323) and the driving gear (34) has a guide surface (35) at an edge thereof in an axial direction of the driving gear (34).

6. A wiper strip assembly according to any one of claims 2-5, characterized in that The rigid part (11) is configured to be raised at the first end (111) when rotated along a first rotation direction, and is configured to be lowered at the first end (111) when rotated along a second rotation direction; The driving mechanism (30) further comprises a resilient member (33) in abutment with the sliding block (32), and the resilient member (33) is configured to provide a driving force for driving the sliding block (32) to rotate the rigid part (11) along the first rotation direction, and the driver (31) is configured to provide a driving force for driving the sliding block (32) to rotate the rigid part (11) along the second rotation direction.

7. The wiper blade assembly of claim 6, wherein, The rigid part (11) is in a circular arc shape about a first axis parallel to the first direction, and the rigid part (11) is configured to rotate about the first axis, and the first end (111) is one end of the rigid part (11) in a circumferential direction about the first axis.

8. The wiper blade assembly of claim 6, wherein, The scraping strip assembly further comprises an upper cover structure (50), the upper cover structure (50) has a sandwich layer (51) and an extension opening (52), the sandwich layer (51) has an arc-shaped part (511) arranged around the first direction; the hard part (11) is configured to be at least partially located in the sandwich layer (51) and is capable of sliding along the arc-shaped part (511); the extension opening (52) is located at one end of the arc-shaped part (511) around the first direction and is in communication between the inside and outside of the sandwich layer (51), and the scraping strip body (10) is capable of extending and retracting outwards from the extension opening (52).

9. The wiper blade assembly of claim 8, wherein, The upper cover structure (50) has a stop block (541), the sliding block (32) has an assembly groove (325) and a positioning column (327), the assembly groove (325) is arranged along the sliding direction of the sliding block (32), the stop block (541) is located in the assembly groove (325), the elastic member (33) is a spring and is arranged in the assembly groove (325), one end of the elastic member (33) abuts against the stop block (541), and the other end of the elastic member (33) is sleeved on the positioning column (327).

10. The wiper blade assembly of claim 8, wherein, The first end (111) has a first position and a second position in the height direction; The hard part (11) has a first limiting structure (117), the upper cover structure (50) has a limiting boss (531), the first limiting structure (117) is configured to abut against the limiting boss (531) when the first end (111) is at the first position and generate a limit to block the first end (111) from descending in the height direction; and / or, the upper cover structure (50) has a second limiting structure (542), the hard part (11) has an elastic protruding point (119), the second limiting structure (542) is configured to abut against the elastic protruding point (119) when the first end (111) is at the second position and generate a limit to block the first end (111) from ascending in the height direction.

11. The wiper blade assembly of claim 8, wherein, The arc-shaped part (511) is arranged around the circumferential side of a rolling brush (210) of the scrubber, and the extension opening (52) is located on the front side of the rolling brush (210) and is arranged downward.

12. The wiper blade assembly of claim 8, wherein, The upper cover structure (50) comprises a top cover (53) and an inner cover (54), the top cover (53) and the inner cover (54) are connected and spaced to form the sandwich layer (51), and the inner cover (54) has a water storage cavity (543) and a water filling position (544).

13. The wiper blade assembly of claim 12, wherein, The upper cover structure (50) has a positioning and matching structure and is detachably connected with a lower cover structure (220) of the scrubber through the positioning and matching structure.

14. The wiper blade assembly of claim 1, wherein, The hard part (11) is integrally formed with the scraping strip part (13); and / or, the hard part (11) is made of hard rubber material, and the scraping strip part (13) is made of soft rubber material.

15. A scrubber, characterized in that The scraping strip assembly comprises the scraping strip assembly according to any one of claims 1-14.

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