Floor brush and cleaning equipment

Abstract

The invention provides a floor brush and cleaning equipment, the floor brush comprises a floor brush body, a cleaning piece connected to the floor brush body, a scraping strip assembly and a driving assembly, and the floor brush body can advance in the first direction or retreat in the second direction; the scraping strip assembly is located on the front side of the cleaning piece in the first direction. The driving assembly is used for driving the scraping strip assembly to be switched between the suspension position and the cleaning position and comprises a cam in transmission connection with the scraping strip assembly, the cam comprises a first curved surface and a second curved surface which are connected with each other, and the first curved surface is an arc surface; when the scraping strip assembly is switched from the cleaning position to the suspension position, the first curved surface and the second curved surface rotate along with the cam and abut against the scraping strip assembly in sequence. When the first curved surface abuts against the scraping strip assembly, the scraping strip assembly is located at the cleaning position, and when the second curved surface abuts against the scraping strip assembly, the scraping strip assembly moves from the cleaning position to the suspension position. The problem that an existing scrubber is poor in front welt cleaning effect in the cleaning process is solved.

Description

Technical Field

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

[0002] Cleaning equipment such as floor scrubbers, electric mops, and combined scrubbers and mops have gained widespread application and attention in the market in recent years.

[0003] Taking floor scrubbers as an example, a common problem with current floor scrubbers is poor edge cleaning performance, especially at the front. For instance, in narrow spaces like bathrooms, kitchens, and bedroom edges, the machine cannot effectively clean the front edges using side suction. Even when the front brush is close to wall edges, corners, and around furniture, it cannot fully contact and thoroughly clean these areas, leading to dust and dirt accumulation and affecting overall cleaning quality. This accumulated dirt in these front-side missed areas often requires manual cleaning (using brushes, towels, etc.), impacting the user experience. Summary of the Invention

[0004] This application provides a floor brush and cleaning equipment that solves the problem of poor cleaning effect of the front edge of existing floor scrubbers during the cleaning process.

[0005] This application is implemented as follows: a floor brush includes a brush body, a cleaning component, a scraper assembly, and a drive assembly. The brush body is capable of moving forward in a first direction or backward in a second direction relative to a surface to be cleaned. The cleaning component is connected to the brush body and is used to clean the surface to be cleaned. The scraper assembly is located in front of the cleaning component along the first direction. The drive assembly is used to drive the scraper assembly to switch between a suspended position and a cleaning position relative to the surface to be cleaned. In the suspended position, the scraper assembly maintains a gap with the surface to be cleaned; in the cleaning position, the scraper assembly contacts the surface to be cleaned. The driving component includes a cam that is pulsatorically connected to the scraper assembly. The cam includes a first curved surface and a second curved surface that are interconnected. The first curved surface is an arc surface. When the scraper assembly switches from the cleaning position to the suspended position, both the first curved surface and the second curved surface rotate with the cam. The first curved surface and the second curved surface abut against the scraper assembly in sequence. When the first curved surface abuts against the scraper assembly, the scraper assembly is in the cleaning position. When the second curved surface abuts against the scraper assembly, the scraper assembly moves from the cleaning position to the suspended position.

[0006] In some embodiments, the distance between any position of the first curved surface and the rotation center of the cam when it rotates is equal.

[0007] In some embodiments, the drive assembly further includes a triggering mechanism connected to the cam; As the brush body moves forward, the triggering mechanism abuts against the leading edge to drive the cam to rotate, pressing the scraper assembly down from the suspended position to the cleaning position.

[0008] In some embodiments, the triggering mechanism includes a rack, a gear, and a rotating shaft. The rack protrudes from the scraper assembly along the first direction, and one end of the rack protruding from the scraper assembly is used to contact the leading edge. The gear meshes with the rack. The rotating shaft is fixedly connected to the gear and the cam, and the rotating shaft can rotate synchronously with the gear to drive the cam to rotate.

[0009] In some embodiments, the floor brush body includes a protective cover located on the outer periphery of the cleaning component for shielding the cleaning component; The drive assembly further includes a first elastic element, which is connected to the scraper assembly and the protective cover respectively. As the brush body retracts, the first elastic element drives the cam to rotate, causing the scraper assembly to rise from the cleaning position to the suspended position.

[0010] In some embodiments, the protective cover is provided with a fixing block; The drive assembly further includes a second elastic element, which includes a first end and a second end. The second elastic element is sleeved on the rotating shaft, with the first end connected to the cam and the second end connected to the fixed block. The second elastic element is used to drive the cam to rotate when the scraper assembly rises from the cleaning position to the suspended position, so that the two ends of the first curved surface abut against the scraper assembly in sequence.

[0011] In some embodiments, the second elastic element includes a torsion spring.

[0012] In some embodiments, the floor brush further includes a one-way damper connected to the pivot, the one-way damper being used to apply a damping force to the pivot when the scraper assembly rises from the cleaning position to the suspended position.

[0013] In some embodiments, the scraper assembly includes a scraping condition and a connecting rod, the scraping condition being used to contact the surface to be cleaned to scrape away dirt from the surface to be cleaned, one end of the connecting rod being connected to the scraping condition, and the other end of the connecting rod passing through the protective cover; The first elastic element includes a spring, is sleeved on the connecting rod, one end of the first elastic element is connected to the end of the connecting rod away from the scraping condition, and the other end of the first elastic element is connected to the protective cover.

[0014] In some embodiments, a roller is provided at the end of the connecting rod away from the scraping condition, and when the cam rotates and abuts against the scraper assembly, the roller rotates relative to the first curved surface.

[0015] In some embodiments, the end of the connecting rod away from the scraping condition is provided with two rollers, and the two rollers are respectively located on both sides of the connecting rod along the axial direction of the rotating shaft; The cam includes two first curved surfaces, and when the cam rotates, the two first curved surfaces abut against the two rollers in a one-to-one correspondence.

[0016] In some embodiments, the floor brush body further includes an upper cover, the upper cover having a through clearance groove, and the side of the clearance groove having a protrusion extending along the moving direction of the rack; The rack has a groove on its side near the protrusion, the protrusion is inserted into the groove, and the rack can move relative to the protrusion in the clearance groove.

[0017] In some embodiments, the drive assembly is provided in two sets, the two sets of drive assemblies are spaced apart along the length direction of the scraping condition and are symmetrically arranged about the mid-section perpendicular to the scraping condition, and the rotating shafts of the two sets of drive assemblies are connected to each other.

[0018] This application also provides a cleaning device, including a floor brush as described in any of the above embodiments, a body connected to the floor brush, and a water tank assembly; the water tank assembly includes a clean water tank and a waste water tank, the clean water tank is at least used to provide cleaning liquid for wetting the cleaning component, and the waste water tank is used to store dirt generated by the floor brush during the cleaning process, and the water tank assembly is installed on the floor brush or the body.

[0019] The beneficial effects of the floor brush and cleaning equipment provided in this application are as follows: Compared with the prior art, this application connects the cam of the drive component with the scraper component through a transmission. The cam has a first curved surface and a second curved surface, and the first curved surface is an arc surface. During the process of the scraper component moving from the cleaning position to the suspended position, the rotation of the cam will drive the first curved surface to rotate and abut against the scraper component, so that the scraper component is in the cleaning position. When the first curved surface rotates to disengage from the scraper component and the second curved surface abuts against the scraper component, the scraper component moves from the cleaning position to the suspended position. Thus, when any position of the first curved surface abuts against the scraper component, the scraper component is in the cleaning position. This allows the scraper component to delay rising to the suspended position. During this process, the floor brush is also retracting. Therefore, the scraper component is in the cleaning position during the retraction process, which can scrape the dirt on the ground in the missed area in front of the floor brush to the rear so that the cleaning component can clean it, achieving a better edge cleaning effect. Attached Figure Description

[0020] Figure 1 This is an overall schematic diagram of the cleaning equipment provided in the embodiments of this application; Figure 2 This is a schematic diagram of the overall structure of the floor brush provided in the embodiment of this application; Figure 3 This is a schematic diagram of the scraper assembly of the floor brush provided in this embodiment of the application in a suspended position; Figure 4 This is a schematic diagram of the scraper assembly of the floor brush provided in this embodiment of the application in the cleaning position; Figure 5 This is a schematic diagram showing the positions of the cam and the scraper assembly when the scraper assembly of the floor brush provided in this application is in the suspended position; Figure 6 This is a schematic diagram showing the position of the cam and the scraper assembly when the scraper assembly of the floor brush provided in this application is in the cleaning position. Figure 1 ; Figure 7 This is a schematic diagram showing the position of the cam and the scraper assembly when the scraper assembly of the floor brush provided in this application is in the cleaning position. Figure 2 ; Figure 8 This is a schematic diagram showing the positions of the drive assembly and scraper assembly of the floor brush provided in an embodiment of this application; Figure 9 This is a schematic diagram showing the connection between the drive assembly and the scraper assembly of the floor brush provided in an embodiment of this application; Figure 10 This is a schematic diagram showing another angle of connection between the drive assembly and the scraper assembly of the floor brush provided in an embodiment of this application; Figure 11 This is a schematic diagram showing the position of the roller in an embodiment of this application; Figure 12 yes Figure 2 Enlarged view of point I in the middle.

[0021] Attached label: 100, surface to be cleaned; 10, floor brush; 20, machine body; 11. Floor brush body; 111. Protective cover; 1111. Mounting plate; 1112. Fixing block; 112. Top cover; 1121. Clearance groove; 1122. Raised strip; 12. Cleaning component; 13. Scraper assembly; 131. Scraping condition; 132. Connecting rod; 133. Roller; 14. Drive assembly; 141. Cam; 1410. First curved surface; 1411. Second curved surface; 142. First elastic element; 143. Triggering mechanism; 1431. Rack; 14310. Groove; 1432. Gear; 1433. Shaft; 14330. Mounting block; 144. Second elastic element; 1441. First end; 1442. Second end; 15. Unidirectional damper. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0027] This application provides a floor brush and cleaning equipment that solves the problem of poor cleaning effect of the front edge of existing floor scrubbers during the cleaning process.

[0028] refer to Figure 1 The cleaning device provided in this application includes a floor brush 10 and a body 20 connected to the floor brush 10. During the cleaning process, the user can hold the device on the body 20 and move the floor brush 10 by swinging the body 20, so that the floor brush 10 comes into frictional contact with the surface 100 to be cleaned, thereby cleaning the surface 100. The surface 100 to be cleaned includes floors, carpets, walls, tabletops, etc.

[0029] Cleaning equipment includes, but is not limited to, floor scrubbers, sweeper-mop combos, and electric mops. For ease of description, the cleaning equipment described below uses a floor scrubber as an example, and the surface to be cleaned 100 is the ground as an example. The cleaning equipment and floor brush 10 of this application will be described separately.

[0030] Optionally, the cleaning equipment also includes a water tank assembly, which includes a clean water tank that can store cleaning liquid. The floor brush 10 includes a cleaning component 12 disposed at its bottom. The clean water tank is used to provide cleaning liquid to wet the cleaning component 12, so that the cleaning component 12 can wet the stains on the surface to be cleaned during the cleaning process, reduce the adhesion of the stains, and improve the cleaning effect.

[0031] In the implementation illustrated in this application, the cleaning component 12 is a roller brush, and the number of roller brushes is one. In other implementations, the number of roller brushes may be two, three, or more. The cleaning component 12 may also be a cleaning disc or other forms.

[0032] Depending on the specific usage requirements, the clean water tank can be installed on the main body 20 or on the floor brush 10.

[0033] In some embodiments, the water tank assembly also includes a wastewater tank for storing dirt generated by the floor brush 10 during the cleaning process; the dirt is generally a solid-liquid mixture. Similarly, the wastewater tank may also be mounted on the body 20 or the floor brush 10.

[0034] In some embodiments, the cleaning equipment may further include a suction device that provides negative pressure, under which dirt on the surface 100 to be cleaned is drawn into a wastewater tank. For example, the suction device includes an impeller and a motor, the motor driving the impeller to rotate to generate negative pressure suction.

[0035] Generally, the floor brush 10 is provided with a suction chamber with an opening and a suction channel connecting the suction chamber and the wastewater tank. The suction device draws dirt from the floor through the opening of the suction chamber and into the wastewater tank via the suction channel. The aforementioned cleaning component 12 may be at least partially located within the suction chamber.

[0036] refer to Figure 2The floor brush 10 provided in this application embodiment includes a floor brush body 11, a cleaning component 12, a scraper assembly 13, and a drive assembly 14. The floor brush body 11 can move forward along a first direction X1 or backward along a second direction X2 on the surface to be cleaned 100. The cleaning component 12 is connected to the floor brush body 11 and is used to clean the surface to be cleaned 100. The scraper assembly 13 is located in front of the cleaning component 12 along the first direction X1. The drive assembly 14 is used to drive the scraper assembly 13 to switch between a suspended position and a cleaning position relative to the surface to be cleaned 100. When the scraper assembly 13 is in the suspended position, it maintains a gap with the surface to be cleaned 100. When the scraper assembly 13 is in the cleaning position, it maintains a gap with the surface to be cleaned 100. Contact; the drive assembly 14 includes a cam 141 that is drively connected to the scraper assembly 13. The cam 141 includes a first curved surface 1410 and a second curved surface 1411 that are connected to each other. The first curved surface 1410 is an arc surface. When the scraper assembly 13 switches from the cleaning position to the suspended position, the first curved surface 1410 and the second curved surface 1411 both rotate with the cam 141. The first curved surface 1410 and the second curved surface 1411 abut against the scraper assembly 13 in sequence. When the first curved surface 1410 abuts against the scraper assembly 13, the scraper assembly 13 is in the cleaning position. When the second curved surface 1411 abuts against the scraper assembly 13, the scraper assembly 13 moves from the cleaning position to the suspended position.

[0037] In this embodiment of the application, reference is made to Figure 3 "Suspended position" refers to the position where the scraper assembly 13 can be at its furthest distance from the surface 100 to be cleaned, and is also the highest limit position at which the scraper assembly 13 can be lifted by the drive assembly 14. (Reference) Figure 4 "Cleaning position" refers to the position where the scraper assembly 13 contacts or abuts against the surface 100 to be cleaned, and is also the lowest limit position where the scraper assembly 13 can be pressed down by the cam 141.

[0038] The first direction X1 and the second direction X2 are roughly parallel to the surface 100 to be cleaned. The first direction X1 can be understood as forward, and the second direction X2 points backward.

[0039] The cleaning component 12 has a scraper assembly 13 on its front side along the first direction X1. The scraper assembly 13 can be driven by the drive assembly 14 to move closer to or further away from the ground. During the cleaning process, the cleaning component 12 can clean most of the dirt on the ground. If there is a missed area on the front side that the floor brush 10 cannot clean, the scraper assembly 13 can be adjusted to a cleaning position to assist in cleaning the dirt in the missed area.

[0040] Specifically, during the cleaning process, the scraper assembly 13 is always suspended in the air to prevent it from obstructing the removal of dirt from the floor. When the cleaning equipment moves forward along the first direction X1 to the wall in front, the cam 141 presses the scraper assembly 13 downward to move it to the cleaning position. Then, the cleaning equipment is pulled back, and the scraper assembly 13 can remain in the cleaning position for a period of time before moving to the suspended position. This allows the scraper assembly 13 to scrape or wipe away dirt from the missed areas on the floor, thereby improving the cleaning effect.

[0041] It should be noted that the drive assembly 14 includes a cam 141 that is pulsatorically connected to the scraper assembly 13. The drive assembly 14 drives the scraper assembly 13 to move from a suspended position to a cleaning position, that is, the cam 141 rotates, so that the first curved surface 1410 of the cam 141 rotates to abut against the scraper assembly 13, so that the scraper assembly 13 is in the cleaning position. During the rotation of the cam 141, one end of the first curved surface 1410 connected to the second curved surface 1411 will first abut against the scraper assembly 13, at which time the scraper assembly 13 is in the cleaning position. However, the cam 141 will continue to rotate so that the end of the first curved surface 1410 away from the second curved surface 1411 abuts against the scraper assembly 13. When the first curved surface 1410 abuts against the scraper assembly 13 at any position, the scraper assembly 13 is always in the cleaning position.

[0042] Similarly, the drive assembly 14 drives the scraper assembly 13 to move from the cleaning position to the suspended position, and the cam 141 rotates in the opposite direction, so that the first curved surface 1410 of the cam 141 rotates to a position where it does not contact the scraper assembly 13, thus placing the scraper assembly 13 in the suspended position. During the rotation of the cam 141, the end of the first curved surface 1410 that is not in contact with the scraper assembly 13 will rotate to contact the scraper assembly 13. During this process, the scraper assembly 13 remains in the cleaning position. As the scraper assembly 13 moves from the cleaning position to the suspended position, the floor brush 10 also moves backward. Therefore, the scraper assembly 13 is in the cleaning position during the backward movement, which can scrape the dirt on the ground in the missed area in front of the floor brush 10 to the rear, so that the cleaning component 12 can clean it, achieving a better edge cleaning effect.

[0043] To more clearly illustrate the rotation process of cam 141, the two ends of the first curved surface 1410 along the rotation direction are referred to as end A and end B, respectively. (Refer to...) Figure 5 and Figure 10 When the scraper assembly 13 is in a suspended position, neither end A nor end B of the first curved surface 1410 contacts the scraper assembly 13. (Reference) Figure 6When the scraper assembly 13 moves from the suspended position to the cleaning position, the cam 141 rotates. First, end A of the first curved surface 1410 abuts against the scraper assembly 13. At this time, the scraper assembly 13 is in the cleaning position. (Refer to...) Figure 7 As cam 141 continues to rotate, end B of the first curved surface 1410 will abut against the scraper assembly 13. When the scraper assembly 13 moves from the cleaning position to the suspended position, cam 141 rotates in the opposite direction, and the first curved surface 1410 also rotates, so that the contact between end B of the first curved surface 1410 and the scraper assembly 13 changes to the contact between end A of the first curved surface 1410 and the scraper assembly 13. Figure 6 As shown, during this process, the scraper assembly 13 is always in the cleaning position. As the cam 141 continues to rotate, end A of the first curved surface 1410 separates from the scraper assembly 13, and the scraper assembly 13 will then be removed from the cleaning position.

[0044] Figure 6 The dotted line with the arrow indicates the direction of rotation of the cam 141 when the scraper assembly 13 moves from the suspended position to the cleaning position. Figure 7 The dotted line with the arrow indicates the direction of rotation of the cam 141 when the scraper assembly 13 moves from the cleaning position to the suspended position.

[0045] As described above, there is a delay when the scraper assembly 13 moves from the cleaning position to the suspended position. That is, the scraper assembly 13 will stay in the cleaning position for a period of time before moving to the suspended position. Combined with the condition that the floor brush 10 is also moving backward during the process of the scraper assembly 13 moving from the cleaning position to the suspended position, the scraper assembly 13 can scrape out the dirt in the front missed area of ​​the floor brush 10, which is convenient for the cleaning component 12 to clean, making the cleaning effect of the front missed area better, and thus improving the cleaning effect of the floor brush 10 on the floor.

[0046] In some embodiments, reference Figures 5-7 The distance between any position on the first curved surface and the rotation center of the cam when it rotates is equal.

[0047] It should be noted that the first curved surface 1410 of this application is an arc surface, which can be understood as an arc surface with equal radius, that is, the distance between any position of the first curved surface 1410 and the rotation center of the cam 141 is equal. In this way, the area between the position where end A of the first curved surface 1410 abuts with the scraper assembly 13 and the position where end B of the first curved surface 1410 abuts with the scraper assembly 13 can be called the equal radius area. When the first curved surface 1410 of the cam 141 rotates to the equal radius area, the scraper assembly 13 will be in the cleaning position. Therefore, the scraper assembly 13 can be kept in the cleaning position for a period of time, achieving the effect of delaying the scraper assembly 13 to move to the suspended position, thereby better cleaning the stains on the ground in the missed area on the front of the floor brush 10.

[0048] In some embodiments, reference Figure 2 and Figure 8 The floor brush body 11 includes a protective cover 111, which is located on the outer periphery of the cleaning component 12 and is used to cover the cleaning component 12. The drive assembly 14 also includes a first elastic element 142 and a trigger mechanism 143. The first elastic element 142 is connected to the scraper assembly 13 and the protective cover 111 respectively, and the trigger mechanism 143 is connected to the cam 141. When the floor brush body 11 moves forward, the trigger mechanism 143 abuts against the leading edge to drive the cam 141 to rotate and press the scraper assembly 13 down from the suspended position to the cleaning position. When the floor brush body 11 moves backward, the first elastic element 142 drives the cam 141 to rotate so that the scraper assembly 13 rises from the cleaning position to the suspended position.

[0049] The aforementioned front edge can refer to the wall surface in front of the floor brush 10 during the floor cleaning process.

[0050] In this embodiment of the application, the process of driving the scraper assembly 13 to change from a suspended position to a cleaning position can specifically be as follows: Figure 5 and Figure 10 With the scraper assembly 13 in a suspended position, the floor brush body 11 moves forward or backward to clean the surface 100 to be cleaned. When the floor brush body 11 moves forward, if the trigger mechanism 143 abuts against the leading edge, the trigger mechanism 143 will be pushed backward, which will drive the cam 141 to rotate. The direction of rotation is as follows: Figure 6 As indicated by the dashed arrow, the scraper assembly 13 is pressed down from the suspended position to the cleaning position, at which point the scraper assembly 13 and the cam 141 are in the position... Figure 7 In the state shown, the first elastic element 142 connecting the scraper assembly 13 and the brush body 11 is compressed and stores force. Subsequently, the brush body 11 retracts, the trigger mechanism 143 separates from the leading edge, and the elastic force of the first elastic element 142 drives the cam 141 to rotate in the opposite direction, as shown in the diagram. Figure 7 As indicated by the dashed arrow, the floor brush body 11 retracts. During the rotation of the cam 141, end B and end A of the first curved surface 1410 slide past the scraper assembly 13 in sequence, keeping the scraper assembly 13 in a cleaning position within an area of ​​equal radius. That is, due to the design of the first curved surface 1410 of the cam 141, the scraper assembly 13 can delay moving from the cleaning position to the suspended position. Therefore, the scraper assembly 13 can remain in the cleaning position for a period of time during the retraction of the floor brush body 11, scraping out the dirt in the missed area on the front of the floor brush 10 before moving to the suspended position.

[0051] The process of changing the position of the aforementioned scraper assembly 13 not only delays the time it takes for the scraper assembly 13 to move from the cleaning position to the suspended position, allowing the scraper assembly 13 to scrape away the dirt in the missed area on the front of the floor brush 10, thus improving the cleaning effect, but also drives the cam 141 to rotate through the trigger mechanism 143 and the first elastic element 142. This eliminates the need for the user to manually drive the cam 141 to rotate. The mechanical structure design enables the triggering of the cam 141, making it easier for the user to use and saving power, which helps to extend the standby time of the cleaning equipment.

[0052] It is understandable that the first elastic element 142 is connected to the scraper assembly 13 and the protective cover 111 respectively, which is equivalent to connecting the scraper assembly 13 to the protective cover 111 of the floor brush body 11. Due to the elastic effect of the first elastic element 142, when the trigger mechanism 143 does not contact the leading edge and the cam 141 does not rotate, the scraper assembly 13 will not fall downward. That is, the first elastic element 142 supports the scraper assembly 13 and the protective cover 111, so the scraper assembly 13 can be stably suspended in the air.

[0053] In some embodiments, reference Figure 8 and Figure 9 The triggering mechanism 143 includes a rack 1431, a gear 1432, and a rotating shaft 1433. The rack 1431 protrudes from the scraper assembly 13 along the first direction X1, and one end of the rack 1431 protruding from the scraper assembly 13 is used to contact the leading edge. The gear 1432 meshes with the rack 1431. The rotating shaft 1433 is fixedly connected to the gear 1432 and the cam 141. The rotating shaft 1433 can rotate synchronously with the gear 1432 to drive the cam 141 to rotate.

[0054] It should be noted that when the brush body 11 moves forward along the first direction X1, the trigger mechanism 143 abuts against the leading edge, specifically the rack 1431 abuts against the leading edge. The rack 1431 will be pushed backward, and the backward movement of the rack 1431 will drive the gear 1432 to rotate. As a result, the shaft 1433 connected to the gear 1432 will rotate together, and the cam 141 connected to the shaft 1433 will be driven to rotate. This structure of triggering the rotation of the cam 141 is relatively simple, and in a small space, by pushing the gear 1432 backward a short distance, the cam 141 can be rotated at a large angle, which meets the requirement of pressing the scraper assembly 13 down from the suspended position to the cleaning position.

[0055] In this embodiment of the application, the connection between the rotating shaft 1433 and the cam 141 means that the rotating shaft 1433 and the cam 141 are fixedly connected, and the rotating shaft 1433 and the cam 141 will rotate together synchronously.

[0056] In some embodiments, to simplify the structure of the triggering mechanism 143, the trigger rod can be directly used as the triggering mechanism 143, and the trigger rod can be directly connected to the cam 141. When the trigger rod abuts the leading edge, the trigger rod is subjected to a backward thrust, which is equivalent to the cam 141 being subjected to a backward thrust, which can directly cause the cam 141 to rotate. However, it should be noted that this triggering method needs to be implemented in a relatively large space, that is, the distance by which the trigger rod is pushed backward needs to be relatively large in order to meet the requirement that the cam 141 presses the scraper assembly 13 down from the suspended position to the cleaning position.

[0057] As the brush body 11 retracts along the second direction X2, the trigger mechanism 143 gradually separates from the leading edge. The backward thrust on the trigger mechanism 143 gradually decreases until it disappears. At this time, the energy stored in the first elastic element 142 is released, meaning the first elastic element 142 returns from a compressed state to an extended state. Consequently, the first elastic element 142 applies an upward thrust to the cam 141, causing the cam 141 to move in accordance with... Figure 7 When the arrow in the middle dotted line rotates, the cam 141 rotates, which drives the rotating shaft 1433 to rotate synchronously. The rotating shaft 1433 rotates, which in turn drives the gear 1432 to rotate. When the gear 1432 rotates, the rack 1431 that meshes with the gear 1432 will move towards the front edge until it is in its original position. At this time, the scraper assembly 13 will change from the cleaning position to the suspended position.

[0058] refer to Figure 8 The specific way in which the first elastic element 142 is connected to the protective cover 111 can be: the protective cover 111 is provided with a mounting plate 1111, and the first elastic element 142 is connected to the mounting plate 1111.

[0059] In some embodiments, reference Figure 8 and Figure 9 The protective cover 111 is provided with a fixing block 1112; the drive assembly 14 also includes a second elastic element 144, which includes a first end 1441 and a second end 1442. The second elastic element 144 is sleeved on the rotating shaft 1433, the first end 1441 is connected to the cam 141, and the second end 1442 is connected to the fixing block 1112. The second elastic element 144 is used to drive the cam 141 to rotate when the scraper assembly 13 rises from the cleaning position to the suspended position, so that the two ends of the first curved surface 1410 abut against the scraper assembly 13 in sequence.

[0060] It should be noted that when the scraper assembly 13 is in the suspended position, the cam 141 rotates to press the scraper assembly 13 down to the cleaning position. When the scraper assembly 13 needs to rise to the suspended position, the cam 141 needs to rotate in the opposite direction so that the scraper assembly 13 can rise to the suspended position in a delayed manner to scrape out the dirt in the missed area on the front of the floor brush 10.

[0061] When the scraper assembly 13 is in the cleaning position, the first curved surface 1410 of the cam 141 abuts against the scraper assembly 13, specifically, end B of the first curved surface 1410 abuts against the scraper assembly 13. Since the distance between any position of the first curved surface 1410 and the rotation axis of the cam 141, i.e., the central axis of the rotating shaft 1433, is equal, when the triggering force driving the cam 141 to rotate decreases to disappear, that is, when the brush body 11 retracts, causing the triggering mechanism 143 to disengage from the leading edge, when the first elastic element 142 applies an elastic force to the cam 141, end B of the first curved surface 1410 may continue along... Figure 6 The direction indicated by the dashed arrow may also be along... Figure 7 The arrow in the middle dashed line indicates the direction of movement, in order to prevent cam 141 from continuing along... Figure 6 The arrow in the middle dotted line points in the direction of rotation. This application provides a second elastic element 144, which is sleeved on the rotating shaft 1433. The first end 1441 of the second elastic element 144 is connected to the cam 141, and the second end 1442 is connected to the fixed block 1112. Since the fixed block 1112 does not move, the cam 141 will compress the second elastic element 144 during rotation, thus accumulating energy. When the triggering force that drives the cam 141 to rotate decreases to disappear, and the first elastic element 142 still applies an elastic force to the cam 141, the energy accumulated by the second elastic element 144 will apply a pulling force to the cam 141, causing the cam 141 to rotate in the opposite direction.

[0062] Example, reference Figure 8 and Figure 9 The second elastic element 144 includes a torsion spring.

[0063] A torsion spring, also known as a torsion spring, is an industrial helical spring made of spring steel. It generates torque or rotational force through elastic deformation. Its ends can be fixed to other components, and angular energy is stored and released by rotating a lever arm around the central axis of the spring. The direction of rotation is either clockwise or counterclockwise depending on the application.

[0064] During installation, one end of the torsion spring can be fixed to the cam 141, and the other end of the torsion spring can be fixed to the fixing block 1112. When the cam 141 rotates, the torsion spring will generate torque or rotational force through elastic deformation. When the triggering force that drives the cam 141 to rotate decreases to disappear, the first elastic element 142 will also apply an elastic force to the cam 141, and the energy stored in the torsion spring will be released to make the cam 141 rotate in the opposite direction.

[0065] In some embodiments, the rotating shaft 1433 can be rotatably connected to the fixed block 1112. This is equivalent to fixing the positions of the rotating shaft 1433, the gear 1432 connected to the rotating shaft 1433, and the cam 141 connected to the rotating shaft 1433. When the cam 141 is not rotating, since the rotating shaft 1433 is rotatably connected to the fixed block 1112, the positions of the rotating shaft 1433, the cam 141, and the gear 1432 will not change, and will not affect the normal use of the floor brush 10. When the cam 141 rotates, the rotating shaft 1433 will rotate relative to the fixed block 1112, which can also keep the positions of the rotating shaft 1433 and the gear 1432 unchanged, ensuring that the cam 141 will not deviate during rotation, and can smoothly press the scraper assembly 13 down from the suspended position to the cleaning position.

[0066] For details, please refer to Figure 8 A mounting block 14330 is connected to the rotating shaft 1433. The mounting block 14330 is located on the side of the second elastic member 144 away from the cam 141. The fixing block 1112 is provided with a mounting groove that matches the mounting block 14330, and the mounting block 14330 is placed in the mounting groove. This is equivalent to fixing the positions of the rotating shaft 1433, the gear 1432 connected to the rotating shaft 1433, and the cam 141 connected to the rotating shaft 1433. When the cam 141 is not rotating, the positions of the rotating shaft 1433, the cam 141, and the gear 1432 will not change because the mounting block 14330 is placed in the mounting groove, and will not affect the normal use of the floor brush 10. When the cam 141 rotates, the mounting block 14330 will rotate in the mounting groove, which can also keep the positions of the rotating shaft 1433 and the gear 1432 unchanged, ensuring that the cam 141 will not deviate during rotation, and can smoothly press the scraper assembly 13 down from the suspended position to the cleaning position.

[0067] Furthermore, to make the mounting block 14330 rotate more smoothly in the mounting groove, the mounting block 14330 can be set as a cylinder, with the arc surface of the mounting block 14330 facing the mounting groove. The inner wall of the mounting groove is adapted to the arc surface of the mounting block 14330. This reduces the friction between the mounting block 14330 and the mounting groove, making the mounting block 14330 rotate more smoothly.

[0068] To further extend the time it takes for the scraper assembly 13 to rise from the cleaning position to the suspended position, in some embodiments, reference is made to... Figure 8 and Figure 9 The floor brush 10 also includes a one-way damper 15, which is connected to the rotating shaft 1433. The one-way damper 15 is used to apply a damping force to the rotating shaft 1433 when the scraper assembly 13 rises from the cleaning position to the suspended position.

[0069] Among them, the unidirectional damper 15 is a mechanical device whose core function is to provide significant resistance (damping force) in one direction to slow down or control the speed of motion; while in the opposite direction, it provides minimal or even zero resistance, allowing free or near-free motion.

[0070] The working principle of a one-way damper 15 is explained using the most common hydraulic damper as an example. Most one-way dampers 15 operate based on hydraulic principles, and their internal structure typically includes a check valve and a throttle valve. When an object moves in the "free" direction, it pushes the piston inside the damper, which in turn pushes the hydraulic oil. At this time, the check valve is opened, allowing the hydraulic oil to flow through it almost unimpeded, resulting in very little resistance and smooth movement. When the object moves in the "damped" direction, the piston moves in the opposite direction, attempting to push the hydraulic oil. However, the check valve closes under pressure, blocking the easy passage of the hydraulic oil. The hydraulic oil is forced to flow through specially designed tiny orifices or gaps (throttle orifices) on the piston. Because the orifices are very small, the oil generates significant viscous resistance as it passes through. This resistance manifests as a damping force that slows down the movement. The faster the movement, the faster the oil speed through the throttle orifice, and the greater the damping force. The damper converts the kinetic energy (mechanical energy) of the motion into heat energy through oil friction and dissipates it.

[0071] It should be noted that a one-way damper 15 is connected to the rotating shaft 1433. When the cam 141 rotates to move the scraper assembly 13 from the suspended position to the cleaning position, the one-way damper 15 does not generate damping force, allowing the scraper assembly 13 to move quickly and smoothly to the cleaning position. When the cam 141 rotates to move the scraper assembly 13 from the cleaning position to the suspended position, the one-way damper 15 applies damping force to the rotating shaft 1433. This slows down the rotation speed of the rotating shaft 1433, thereby slowing down the rotation speed of the cam 141. This is equivalent to reducing the rotation speed of the first curved surface 1410 of the cam 141. This prolongs the time required for the first curved surface 1410 to rotate from contact with the scraper assembly 13 to separation from the scraper assembly 13, further delaying the time for the scraper assembly 13 to move from the cleaning position to the suspended position. This allows the scraper assembly 13 to scrape the dirt in the missed areas on the front of the floor brush 10 more thoroughly, resulting in a better cleaning effect.

[0072] In some embodiments, reference Figure 8 and Figure 10The scraper assembly 13 includes a scraping condition 131 and a connecting rod 132. The scraping condition 131 is used to contact the surface 100 to be cleaned in order to scrape off the dirt on the surface 100. One end of the connecting rod 132 is connected to the scraping condition 131, and the other end of the connecting rod 132 passes through the protective cover 111. The first elastic member 142 includes a spring. The first elastic member 142 is sleeved on the connecting rod 132. One end of the first elastic member 142 is connected to the end of the connecting rod 132 away from the scraping condition 131, and the other end of the first elastic member 142 is connected to the protective cover 111.

[0073] It should be noted that the first elastic element 142 can be a spring. The spring is sleeved on the connecting rod 132, with one end of the spring connected to the connecting rod 132 and the other end connected to the protective cover 111, specifically to the mounting plate 1111 of the protective cover 111. This is equivalent to connecting the connecting rod 132 and the protective cover 111 together through the spring. In this way, when the triggering mechanism 143 does not contact the leading edge and the cam 141 does not rotate, the first curved surface 1410 does not contact the scraper assembly 13. At this time, the weight of the scraper assembly 13 itself will cause the scraper assembly 13 to fall downwards. However, the elastic force of the spring will resist the weight of the scraper assembly 13 itself. That is, the spring bears the entire weight of the scraper assembly 13, so the scraper assembly 13 will not fall downwards. Moreover, the scraping condition 131 of the scraper assembly 13 can be in a suspended position and can remain stable.

[0074] The above structure is relatively simple. The elastic force of the spring can stably connect the scraper assembly 13 to the brush body 11, so that the scraper assembly 13 can be stably kept in the suspended position when the brush 10 is working. This is beneficial for the workers to install and can also reduce the installation cost.

[0075] It is important to note that the elastic force of the first elastic element 142 must be greater than the overall weight of the scraper assembly 13. That is, when the full weight of the scraper assembly 13 is applied to the first elastic element 142, the first elastic element 142 should remain uncompressed, or it should be compressed but not to its limit. This ensures that when the cam 141 presses down on the scraper assembly 13, the first elastic element 142 can continue to be compressed and store energy, guaranteeing that the energy stored in the first elastic element 142 can be applied to the cam 141, causing the cam 141 to rotate in the opposite direction, and the scraper assembly 13 to rise from the cleaning position to the suspended position.

[0076] In some embodiments, reference Figure 10 A roller 133 is provided at the end of the connecting rod 132 away from the scraping condition 131. When the cam 141 rotates and abuts against the scraper assembly 13, the roller 133 rotates relative to the first curved surface 1410.

[0077] It should be noted that when the cam 141 rotates, the first curved surface 1410 will abut against the scraper assembly 13. In order to facilitate pressing down the scraper assembly 13, this application provides a roller 133 at the end of the connecting rod 132 away from the scraper condition 131. The first curved surface 1410 will abut against the roller 133. When the first curved surface 1410 rotates, the roller 133 will also rotate relative to it. This can both keep the first curved surface 1410 abutting against the roller 133 to press down the scraper assembly 13, and reduce the friction between the first curved surface 1410 and the roller 133 during the rotation process, so as to facilitate the smooth rotation of the first curved surface 1410.

[0078] Further reference Figure 11 Two rollers 133 are provided at the end of the connecting rod 132 away from the scraping condition 131. The two rollers 133 are located on both sides of the connecting rod 132 along the axis of the rotating shaft 1433. The cam 141 includes two first curved surfaces 1410. When the cam 141 rotates, the two first curved surfaces 1410 abut against the two rollers 133 in a one-to-one correspondence.

[0079] With the above settings, when the cam 141 rotates and presses down the scraper assembly 13, the two first curved surfaces 1410 will abut against the two rollers 133 respectively, and the scraper assembly 13 can be pressed down from both sides of the axis of the connecting rod 132 along the rotating shaft 1433, so as to prevent the scraper assembly 13 from shaking and shifting during the movement, thereby making the process of the scraper assembly 13 moving from the suspended position to the cleaning position more stable and smooth.

[0080] In some embodiments, reference Figure 2 and Figure 11 The floor brush body 11 also includes an upper cover 112, which has a through clearance groove 1121. The side of the clearance groove 1121 has a protrusion 1122 extending along the moving direction of the rack 1431. The side of the rack 1431 near the protrusion 1122 has a groove 14310. The protrusion 1122 is inserted into the groove 14310, and the rack 1431 can move relative to the protrusion 1122 in the clearance groove 1121.

[0081] With the above settings, the groove 14310 can move relative to the protrusion 1122, that is, the rack 1431 can move within the clearance groove 1121. Thus, when the rack 1431 abuts against the leading edge, the rack 1431 will move within the clearance groove 1121. The clearance groove 1121 effectively limits the direction of movement of the rack 1431, so that the movement of the rack 1431 will not deviate, and can better mesh with the rotation of the gear 1432.

[0082] In some embodiments, reference Figure 8The drive assembly 14 is provided in two sets. The two sets of drive assemblies 14 are arranged at intervals along the length direction of the scraping condition 131 and are symmetrically arranged about the mid-section perpendicular to the scraping condition 131. The rotating shafts 1433 of the two sets of drive assemblies 14 are connected to each other.

[0083] In this context, "mid-section" generally refers to the cross-section obtained by cutting a solid shape (such as a cylinder, cone, frustum, etc.) in three-dimensional space from its center with a plane parallel to its base. Simply put, it is the cross-section at the very center of the solid shape. In this embodiment, the two sets of driving components 14 are symmetrically arranged about the mid-section of the scraping condition 131, and the mid-section of the scraping condition 131 is perpendicular to the length direction of the scraping condition 131.

[0084] It should be noted that when two sets of drive components 14 are symmetrically arranged, the corresponding scraper component 13 also needs to be equipped with two connecting rods 132. In this way, the cams 141 of the two drive components 14 will press down the two connecting rods 132 one by one, so that the scraper condition 131 can be pressed down from two positions at the same time. This makes the process of the scraper condition 131 moving from the suspended position to the cleaning position more stable, and also ensures that the scraper condition 131 abuts against the surface to be cleaned 100 at each position. This is beneficial for the scraper condition 131 to scrape the dirt in the missed area on the front side of the floor brush 10 more thoroughly and cleanly, resulting in a better cleaning effect.

[0085] Furthermore, since the scraper assembly 13 of this application is connected to the protective cover 111 of the floor brush body 11 through the first elastic member 142, the above arrangement allows for two connection points between the scraper assembly 13 and the protective cover 111 of the floor brush body 11, which is beneficial for the scraper assembly 13 to be installed more stably. At the same time, the weight of the scraper assembly 13 is supported by the two first elastic members 142, which can distribute the weight of the scraper assembly 13 and make the scraper assembly 13 more stable in the suspended position.

[0086] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A floor brush, characterized in that, include: The floor brush body (11) is capable of moving forward in a first direction or backward in a second direction on the surface to be cleaned (100); Cleaning component (12), connected to the floor brush body (11), is used to clean the surface to be cleaned (100). The scraper assembly (13) is located on the front side of the cleaning component (12) along the first direction; A drive assembly (14) is used to drive the scraper assembly (13) to switch between a suspended position and a cleaning position relative to the surface to be cleaned (100), wherein the scraper assembly (13) maintains a gap with the surface to be cleaned (100) in the suspended position; and the scraper assembly (13) contacts the surface to be cleaned (100) in the cleaning position. The drive assembly (14) includes a cam (141) that is drively connected to the scraper assembly (13). The cam (141) includes a first curved surface (1410) and a second curved surface (1411) that are connected to each other. The first curved surface (1410) is an arc surface. When the scraper assembly (13) switches from the cleaning position to the suspended position, the first curved surface (1410) and the second curved surface (1411) both rotate with the cam (141), and the first curved surface (1410) and the second curved surface (1411) abut against the scraper assembly (13) in sequence; When the first curved surface (1410) abuts against the scraper assembly (13), the scraper assembly (13) is in the cleaning position. When the second curved surface (1411) abuts against the scraper assembly (13), the scraper assembly (13) moves from the cleaning position to the suspended position.

2. The floor brush according to claim 1, characterized in that, The distance between any position of the first curved surface (1410) and the rotation center of the cam (141) when it rotates is equal.

3. The floor brush according to claim 1 or 2, characterized in that, The drive assembly (14) further includes a trigger mechanism (143) connected to the cam (141); As the brush (10) body moves forward, the trigger mechanism (143) abuts against the leading edge to drive the cam (141) to rotate, pressing the scraper assembly (13) down from the suspended position to the cleaning position.

4. The floor brush according to claim 3, characterized in that, The triggering mechanism (143) includes: A rack (1431) protrudes from the scraper assembly (13) along the first direction, and one end of the rack (1431) protruding from the scraper assembly (13) is used to contact the leading edge; The gear (1432) meshes with the rack (1431); A rotating shaft (1433) is fixedly connected to the gear (1432) and the cam (141). The rotating shaft (1433) can rotate synchronously with the gear (1432) to drive the cam (141) to rotate.

5. The floor brush according to claim 4, characterized in that, The floor brush body (11) includes a protective cover (111), which is located on the outer periphery of the cleaning component (12) and is used to cover the cleaning component (12). The drive assembly (14) further includes a first elastic element (142), which is connected to the scraper assembly (13) and the protective cover (111) respectively; As the brush body (11) retracts, the first elastic element (142) drives the cam (141) to rotate, causing the scraper assembly (13) to rise from the cleaning position to the suspended position.

6. The floor brush according to claim 5, characterized in that, The protective cover (111) is provided with a fixing block (1112). The drive assembly (14) further includes a second elastic element (144), which includes a first end (1441) and a second end (1442). The second elastic element (144) is sleeved on the rotating shaft (1433), the first end (1441) is connected to the cam (141), and the second end (1442) is connected to the fixing block (1112). The second elastic element (144) is used to drive the cam (141) to rotate when the scraper assembly (13) rises from the cleaning position to the suspended position, so that the two ends of the first curved surface (1410) abut against the scraper assembly (13) in sequence.

7. The floor brush according to claim 6, characterized in that, The second elastic element (144) includes a torsion spring.

8. The floor brush according to any one of claims 4-7, characterized in that, Also includes: A one-way damper (15) is connected to the rotating shaft (1433) and is used to apply a damping force to the rotating shaft (1433) when the scraper assembly (13) rises from the cleaning position to the suspended position.

9. The floor brush according to any one of claims 5-7, characterized in that, The scraper assembly (13) includes a scraping condition (131) and a connecting rod (132). The scraping condition (131) is used to contact the surface to be cleaned (100) to scrape off dirt from the surface to be cleaned (100). One end of the connecting rod (132) is connected to the scraping condition (131), and the other end of the connecting rod (132) passes through the protective cover (111). The first elastic element (142) includes a spring, the first elastic element (142) is sleeved on the connecting rod (132), one end of the first elastic element (142) is connected to the end of the connecting rod (132) away from the scraping condition (131), and the other end of the first elastic element (142) is connected to the protective cover (111).

10. The floor brush according to claim 9, characterized in that, A roller (133) is provided at the end of the connecting rod (132) away from the scraping condition (131). When the cam (141) rotates and abuts against the scraper assembly (13), the roller (133) rotates relative to the first curved surface (1410).

11. The floor brush according to claim 10, characterized in that, Two rollers (133) are provided at the end of the connecting rod (132) away from the scraping condition (131), and the two rollers (133) are respectively located on both sides of the connecting rod (132) along the axial direction of the rotating shaft (1433). The cam (141) includes two first curved surfaces (1410). When the cam (141) rotates, the two first curved surfaces (1410) abut against the two rollers (133) in a one-to-one correspondence.

12. The floor brush according to any one of claims 4-11, characterized in that, The brush body (11) also includes a top cover (112), the top cover (112) is provided with a through clearance groove (1121), and the side of the clearance groove (1121) is provided with a protrusion (1122) extending along the moving direction of the rack (1431). The rack (1431) has a groove (14310) on the side near the protrusion (1122), the protrusion (1122) is inserted into the groove (14310), and the rack (1431) can move relative to the protrusion (1122) in the clearance groove (1121).

13. The floor brush according to any one of claims 4-12, characterized in that, The drive assembly (14) is provided in two sets. The two sets of drive assemblies (14) are spaced apart along the length direction of the scraping condition (131) and are symmetrically arranged about the mid-section perpendicular to the scraping condition (131). The rotating shafts (1433) of the two sets of drive assemblies (14) are connected to each other.

14. A cleaning device, characterized in that, include: The floor brush (10) as described in any one of claims 1-13; The body (20) is connected to the floor brush (10); The water tank assembly includes a clean water tank and a waste water tank. The clean water tank is used at least to provide cleaning liquid for wetting the cleaning component (12), and the waste water tank is used to store dirt generated by the floor brush (10) during the cleaning process. The water tank assembly is mounted on the floor brush (10) or the body (20).

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