Floor washing machine

Abstract

The application discloses a floor washing machine and relates to the technical field of cleaning equipment. The floor washing machine comprises a rolling brush assembly, a handle assembly, a locking piece and a supporting frame. One end of the handle assembly is movably connected with the rolling brush assembly. The supporting frame is arranged at the top end of the rolling brush assembly and is movable relative to the rolling brush assembly. The locking piece is slidably connected with the handle assembly and is contactable with the supporting frame. When the locking piece is located at a first position relative to the handle assembly, the locking piece drives the supporting frame to move towards the extending direction away from the handle assembly, so that at least part of the supporting frame protrudes out of the rolling brush assembly. When the locking piece is located at a second position relative to the handle assembly, the supporting frame moves towards the extending direction of the handle assembly, so that at least part of the supporting frame is retracted into the rolling brush assembly. The application can solve the problems of poor straight-up stability of the current cleaning device, such as the floor washing machine, and has the advantages of flexible and convenient use, good stability and better user experience.

Description

Technical Field

[0001] This application belongs to the field of cleaning equipment technology, specifically relating to a floor scrubber. Background Technology

[0002] Current cleaning devices, such as some floor scrubbers, have structures to keep the machine upright and prevent it from tipping over when not in use, and they need to meet safety regulations by tilting at a 10° angle. This requires better upright stability, and the center distance between the rollers is a key component in ensuring this stability. However, in current floor scrubbers with dual-brush structures, the rollers occupy the outer space, and the rollers are positioned off-center, preventing the center distance between the rollers from reaching its maximum. This makes it difficult to increase stability, meaning that this current structure reduces the stability of the floor scrubber when standing. In addition, most current rollers are made of soft materials, which lack sufficient support. When the machine tilts, gravity is applied to the rollers, which cannot effectively support the weight.

[0003] Therefore, it is particularly important to provide a floor scrubber with an improved support structure. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the above-mentioned technical problems.

[0005] Therefore, this invention proposes a floor scrubbing machine that can at least solve the problem of poor vertical stability of current floor scrubbing machines, making it convenient to use, with better stability, and improving the user experience.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows:

[0007] According to an embodiment of the present invention, a floor scrubbing machine is provided, comprising: a roller brush assembly, a handle assembly, a locking member, and a support frame;

[0008] One end of the handle assembly is movably connected to the roller brush assembly, the support frame is disposed on the top of the roller brush assembly and is movable relative to the roller brush assembly, and the locking member is slidably connected to the handle assembly and is in contact with the support frame;

[0009] When the locking member is in a first position relative to the handle assembly, the locking member drives the support frame to move in a direction away from the extension of the handle assembly, so that at least a portion of the support frame protrudes beyond the roller brush assembly;

[0010] With the locking member in the second position relative to the handle assembly, the support frame moves toward the extending direction of the handle assembly so that at least a portion of the support frame retracts into the roller brush assembly.

[0011] In addition, the floor scrubbing machine according to the present invention may also have the following additional technical features:

[0012] Furthermore, the support frame includes a first side plate and a second side plate spaced apart along a first direction, and a connecting plate connecting the first side plate and the second side plate, wherein the first direction is perpendicular to the sliding direction of the locking member and the moving direction of the floor scrubber, respectively.

[0013] The connecting plate is provided with a clearance hole, and the handle assembly passes through the clearance hole;

[0014] The first side plate and the second side plate are each provided with a first guide structure;

[0015] The roller brush assembly has a second guide structure on each side along the first direction, and the second guide structure is connected to the first guide structure on the corresponding side.

[0016] Furthermore, one of the first guide structure and the second guide structure is a protruding post, and the other is an elongated hole;

[0017] The elongated hole extends along the sliding direction of the locking member, and the protrusion is movably disposed in the elongated hole.

[0018] Furthermore, each of the first side plate and the second side plate has a support foot at the end away from the connecting plate;

[0019] When the locking member is in a first position relative to the handle assembly, the legs of the first side plate and the second side plate extend beyond the roller brush assembly;

[0020] When the locking member is in the second position relative to the handle assembly, the legs of the first side plate and the second side plate retract into the brush assembly.

[0021] Furthermore, the floor scrubber also includes a resilient return component;

[0022] The resilient return member connects the support frame and the roller brush assembly, and the resilient return member is configured to drive the support frame to have a tendency to move toward the extension direction of the handle assembly.

[0023] Furthermore, the elastic return member includes a compression spring;

[0024] At least one of the roller brush assembly and the support frame is provided with a limiting groove, and the end of the compression spring is disposed in the limiting groove.

[0025] Furthermore, when the locking member is in the first position relative to the handle assembly, the locking member abuts against the connecting plate of the support frame, and the compression spring is in the first compressed state;

[0026] When the locking member is in the second position relative to the handle assembly, the locking member disengages from the connecting plate, the compression spring is in a second compressed state, and the degree of compression in the second compressed state is less than that in the first compressed state, or the compression spring is in its original length state.

[0027] Furthermore, the locking member has a first locking portion, and the roller brush assembly has a second locking portion;

[0028] When the locking member is in a first position relative to the handle assembly, the first locking part cooperates with the second locking part to lock the roller brush assembly and the handle assembly;

[0029] When the locking member is in the second position relative to the handle assembly, the first locking part disengages from the second locking part, so that the roller brush assembly can rotate relative to the handle assembly.

[0030] Furthermore, one of the first locking part and the second locking part is a protruding structure, and the other is a groove structure;

[0031] The protruding structure is adapted to the groove structure.

[0032] Furthermore, the locking member has a plurality of first locking portions, and the roller brush assembly has a plurality of second locking portions;

[0033] When the locking member is in a first position relative to the handle assembly, the plurality of first locking parts and the plurality of second locking parts are engaged in a one-to-one correspondence.

[0034] Furthermore, the locking member has a first limiting portion, and the handle assembly has a second limiting portion;

[0035] When the locking member is in a first position relative to the handle assembly, the first limiting portion and the second limiting portion engage in a limiting cooperation.

[0036] Furthermore, one of the first limiting portion and the second limiting portion is a convex structure, and the other is a concave limiting structure;

[0037] The convex structure is adapted to the concave structure.

[0038] Furthermore, the handle assembly also has a third limiting portion, which is located on the side of the second limiting portion away from the roller brush assembly;

[0039] When the locking member is in the second position relative to the handle assembly, the first limiting part cooperates with the third limiting part.

[0040] Compared with the prior art, the present invention has at least the following beneficial effects:

[0041] The floor scrubber provided by this invention includes a roller brush assembly, a handle assembly, a locking member, and a support frame. The support frame is movable relative to the roller brush assembly, and the locking member is slidably connected to the handle assembly and can contact the support frame. Both the locking member and the support frame can have a first position and a second position. When the locking member is in the first position, at least a portion of the support frame can extend downward beyond the roller brush assembly, such as the bottom end of at least a portion of the support frame being in contact with the ground. Thus, when the user is not using the floor scrubber, the support frame can provide support, such as by using the bottom support point of the support frame to hold the ground, while the handle assembly remains upright, ensuring that the floor scrubber stands stably without tilting or tipping over. This allows for stable placement and on-site storage of the floor scrubber. When the user needs to use the floor scrubber, the locking mechanism can be positioned in the second position, and the support frame can be moved towards the extension direction of the handle assembly. This allows at least a portion of the support frame to retract into the roller brush assembly, effectively lifting the bottom of the support frame off the ground. By retracting the support frame without interfering with the contact between the roller brush assembly and the ground, the machine operates using the contact between the roller brushes within the assembly and the ground. Simultaneously, the handle assembly can rotate relative to the support frame and the roller brush assembly, allowing the machine to transition from a non-working state to a working state, thus enabling normal cleaning operations. Therefore, this design alleviates the problems of instability and easy tilting or tipping of the floor scrubber when placed, as well as the inconvenience of switching between non-working and working states, optimizing the user experience.

[0042] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of the floor scrubber disclosed in the embodiments of this application;

[0044] Figure 2 This is a partial schematic diagram of the lower region of the floor scrubber disclosed in an embodiment of this application;

[0045] Figure 3 This is a schematic diagram of the structure of the roller brush assembly and support frame disclosed in the embodiments of this application;

[0046] Figure 4 This is a schematic diagram of the structure of the roller brush bracket, support frame and elastic return member disclosed in the embodiments of this application;

[0047] Figure 5This is a schematic diagram of the structure of the roller brush holder disclosed in the embodiments of this application;

[0048] Figure 6 This is a schematic diagram of the support frame structure disclosed in the embodiments of this application;

[0049] Figure 7 This is a schematic diagram of the locking component disclosed in the embodiments of this application;

[0050] Figure 8 This is a partial schematic diagram of the handle lever disclosed in an embodiment of this application.

[0051] Explanation of reference numerals in the attached figures:

[0052] 100 - Roller brush assembly; 110 - Roller brush bracket; 111 - Second locking part; 112 - Protrusion; 113 - First limiting groove;

[0053] 200 - Handle assembly; 210 - Handle lever; 211 - Second limiting part; 212 - Elastic connecting piece; 213 - Third limiting part; 220 - Connector;

[0054] 300 - Locking element; 310 - First locking part; 320 - First limiting part;

[0055] 400 - Support frame; 410 - First side plate; 411 - Elongated hole; 412 - Support leg; 420 - Second side plate; 430 - Connecting plate; 431 - Clearance hole; 432 - Second limiting groove;

[0056] 500 - Flexible return component. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0058] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0059] Please see Figures 1 to 8As shown, in some embodiments, a floor scrubber is provided that, through the design of an upright support frame, allows the support points to be positioned as close as possible to the outermost edge of the floor brush (roller brush), and the center-to-center distance of the support points to be maximized, thus providing better support. When the floor scrubber is placed on an inclined surface, it is less likely to tilt or tip over, which can alleviate the problem of poor upright stability in existing floor scrubbers, mops, and other cleaning equipment. A detailed description of the technical solution is provided below.

[0060] In this embodiment, the floor scrubber includes a roller brush assembly 100, a handle assembly 200, a locking member 300, and a support frame 400. The roller brush assembly 100 contacts the floor to be cleaned and cleans it to remove impurities or dirt. The handle assembly 200 is held by the user for easy operation. The locking member 300 can move the support frame 400 so that it protrudes beyond the roller brush assembly 100, or it can lock the handle assembly 200 and the roller brush assembly 100 to prevent relative movement, facilitating the floor scrubber's upright position. The locking member 300 can also release the lock on the handle assembly 200 and the roller brush assembly 100, allowing the handle assembly 200 to move relative to the roller brush assembly 100, facilitating angle adjustments and cleaning operations. The support frame 400 provides support to ensure the floor scrubber remains stable and does not tip over.

[0061] In order to enable the handle assembly 200 to move relative to the roller brush assembly 100, in this embodiment of the application, one end of the handle assembly 200 is movably connected to the roller brush assembly 100, so that the handle assembly 200 can move relative to the roller brush assembly 100 to adjust the position of the handle assembly 200 and facilitate the user to operate the floor scrubber.

[0062] The aforementioned support frame 400 is disposed at the upper end of the roller brush assembly 100 and is movable relative to the roller brush assembly 100. The support frame 400 can also have a first position and a second position. For example, when the support frame 400 is in the first position, a portion of the support frame 400 can protrude from the roller brush assembly 100 and be supported on the bearing surface, such as by having the bottom end of the support frame 400 contact the ground, thereby ensuring the floor scrubber stands stably. Alternatively, when the support frame 400 is in the second position, a portion of the support frame 400 retracts relative to the roller brush assembly 100, such as by having the bottom end of the support frame 400 detach from the ground, so that the roller brush of the roller brush assembly 100 can contact the ground to be cleaned, thereby achieving the cleaning of the ground. In this embodiment, by using a support frame 400 that can move up and down, the support points can be located on the outside of the floor scrubber, the distance between the support points is greater, and the support lever arm is longer. This provides a larger support lever arm when the machine body is tilted, resulting in better support stability.

[0063] To switch the position of the support frame 400, the locking member 300 is slidably connected to the handle assembly 200 and is in contact with the support frame 400, such as the locking member 300 being able to move up and down along the handle assembly 200. Based on this, when the locking member 300 is in a first position relative to the handle assembly 200, such as when the locking member 300 is at the bottom end of the handle assembly 200, the locking member 300 drives the support frame 400 to move away from the extending direction of the handle assembly 200, so that at least a portion of the support frame 400 extends beyond the roller brush assembly 100, wherein the extending direction of the handle assembly 200 may be, for example, upward; when the locking member 300 is in a second position relative to the handle assembly 200, such as when the locking member 300 is disengaged from the bottom end of the handle assembly 200 and located at the lower, lower-middle, or middle part of the handle assembly 200, the support frame 400 moves towards the extending direction of the handle assembly 200, so that at least a portion of the support frame 400 retracts into the roller brush assembly 100.

[0064] Specifically, when the locking member 300 approaches the support frame 400, it contacts the support frame 400 and drives the support frame 400 to move relative to the roller brush assembly 100, so that a part of the support frame 400 protrudes from the roller brush assembly 100 to provide support; when the locking member 300 disengages from the support frame 400, the support frame 400 moves in the opposite direction relative to the roller brush assembly 100, so that a part of the support frame 400 retracts relative to the roller brush assembly 100 to facilitate cleaning operations through the roller brush assembly 100.

[0065] Therefore, based on the above settings, the technical solution provided in this application can be used to support the floor scrubber when it is not in use, so as to ensure that the floor scrubber stands stably without tilting or falling over, thus achieving stable placement of the floor scrubber; when the floor scrubber needs to be used, the support frame 400 can be retracted without interfering with the contact between the roller brush assembly 100 and the ground, thus achieving normal cleaning such as floor scrubbing operations.

[0066] When the floor scrubber in this embodiment is stored upright, it can have better vertical stability when the storage surface is tilted, and it has passed the safety standard 10-degree tilt test requirements.

[0067] In this embodiment, the support frame 400 includes a first side plate 410, a second side plate 420, and a connecting plate 430. The first side plate 410 and the second side plate 420 are spaced apart along a first direction, and the connecting plate 430 connects the first side plate 410 and the second side plate 420. The first direction is perpendicular to the sliding direction of the locking member 300, i.e., the moving direction of the floor scrubber. For example, the first direction can be the left-right direction of the floor scrubber, the moving direction of the floor scrubber is the front-back direction, and the sliding direction of the locking member 300 is the up-down direction. Based on this, the first side plate 410, the connecting plate 430, and the second side plate 420 together form a concave frame, and the roller brush assembly 100 is disposed inside the concave frame.

[0068] To prevent the support frame 400 from interfering with the connection between the handle assembly 200 and the roller brush assembly 100, the connecting plate 430 is provided with a clearance hole 431. The handle assembly 200 passes through the clearance hole 431. Thus, the end of the handle assembly 200 can be connected to the roller brush assembly 100 after passing through the clearance hole 431, thereby avoiding the support frame 400 blocking the handle assembly 200 and interfering with the connection between the handle assembly 200 and the roller brush assembly 100.

[0069] To enable the support frame 400 to move stably relative to the roller brush assembly 100, the first side plate 410 and the second side plate 420 are respectively provided with a first guide structure. Correspondingly, the roller brush assembly 100 is provided with second guide structures on both sides along the first direction, and the second guide structures are connected in cooperation with the first guide structures on the corresponding sides. The cooperation between the first guide structures and the second guide structures can guide the support frame 400 so that the support frame 400 moves in a preset direction.

[0070] Optionally, one of the first guide structure and the second guide structure is a protruding post 112, and the other is an elongated hole 411. The elongated hole 411 extends along the sliding direction of the locking member 300, and the protruding post 112 is movably disposed in the elongated hole 411. Optionally, the roller brush assembly 100 may include structures such as a roller brush bracket 110 and a roller brush body. The specific structure and connection arrangement of the roller brush body can refer to the prior art, and this embodiment does not limit it.

[0071] The protruding post 112 can be disposed on both sides of the roller brush bracket 110 in the left-right direction of the roller brush assembly 100, and correspondingly, the elongated hole 411 can be disposed on the first side plate 410 and the second side plate 420; of course, the protruding post 112 can also be disposed on the first side plate 410 and the second side plate 420, while the elongated hole 411 is disposed on both sides of the roller brush bracket 110 in the left-right direction.

[0072] When the support frame 400 moves relative to the roller brush assembly 100, the protrusion 112 can move in the elongated hole 411 along the extension direction of the elongated hole 411. On the one hand, the movement range of the protrusion 112 can be limited by the elongated hole 411, so as to limit the movement range of the support frame 400 relative to the roller brush assembly 100. On the other hand, the elongated hole 411 can also guide the protrusion 112 to ensure that the support frame 400 moves in the preset direction without deviating.

[0073] In some embodiments, the first side plate 410 and the second side plate 420 are each provided with a support foot 412 at the end away from the connecting plate, so that when the locking member 300 is in the first position relative to the handle assembly 200, the support foot 412 of the first side plate 410 and the second side plate 420 extends beyond the roller brush assembly 100, so that the support foot 412 can contact the placement surface to provide support, thereby allowing the floor scrubber to stand stably without tilting or tipping over.

[0074] When the locking member 300 is in the second position relative to the handle assembly 200, the support feet 412 of the first side plate 410 and the second side plate 420 retract into the roller brush assembly 100, so that the roller brush of the roller brush assembly 100 can contact the ground. At this time, the floor scrubber can be moved to clean the floor, thereby making the floor cleaner.

[0075] Optionally, the first side plate 410 may be provided with support legs 412 at both ends along the front-rear direction of the floor scrubber. Similarly, the second side plate 420 may be provided with support legs 412 at both ends along the front-rear direction of the floor scrubber. In this way, the support frame 400 includes at least four support legs 412 to provide support, thereby improving the support stability of the support frame 400 and ensuring the overall stability of the floor scrubber.

[0076] To enable the support frame 400 to retract automatically, the floor scrubber also includes a resilient return member 500. The resilient return member 500 connects the support frame 400 and the roller brush assembly 100. This resilient return member 500 is configured to drive the support frame 400 to move in the direction of extension of the handle assembly 200. Under the elastic force of the resilient return member 500, the support frame 400 can be in a retracted state, at which point the roller brush of the roller brush assembly 100 can contact the ground to perform cleaning operations. When the floor scrubber needs to be placed, the support frame 400 can be squeezed, causing the resilient return member 500 to store elastic potential energy and extend the support frame 400 relative to the roller brush assembly 100, thus providing support and ensuring the floor scrubber stands stably. It should be noted that when the elastic return member 500 stores elastic potential energy, the support frame 400 can be locked by the locking member 300 or other components to prevent the support frame 400 from retracting due to the elastic force of the elastic return member 500.

[0077] Optionally, the elastic return member 500 includes a compression spring, which can push the support frame 400 to retract the support frame 400.

[0078] To prevent the compression spring from moving freely, at least one of the roller brush assembly 100 and the support frame 400 is provided with a limiting groove. The end of the compression spring is disposed in the limiting groove, so as to limit the end of the compression spring and prevent it from moving freely. Of course, one or more limiting grooves can be provided, and the specific number and arrangement can be selected according to the actual working conditions.

[0079] Specifically, the top surface of the roller brush bracket 110 of the roller brush assembly 100 may be provided with a first limiting groove 113, and the inner surface of the connecting plate 430 of the support frame 400 may be provided with a second limiting groove 432. The first limiting groove 113 and the second limiting groove 432 are arranged opposite to each other, and the two ends of the compression spring are respectively located in the first limiting groove 113 and the second limiting groove 432. In this way, the two ends of the compression spring can be limited by the first limiting groove 113 and the second limiting groove 432 to prevent the two ends of the compression spring from moving at will. In addition, it also has a certain guiding effect on the compression spring to alleviate the problem of compression spring torsion and deformation.

[0080] In this embodiment, the locking member 300 and the support frame 400 can be in contact or separated. Specifically, when the locking member 300 is in the first position relative to the handle assembly 200, the connecting plate 430 of the locking member 300 and the support frame 400 abuts against each other. At this time, the compression spring is in the first compression state, thereby preventing the support frame 400 from retracting under the elastic force of the compression spring by squeezing the connecting plate 430 through the locking member 300. In this state, the support frame 400 can play a supporting role, so as to facilitate the stable placement of the floor scrubber.

[0081] When the locking member 300 is in the second position relative to the handle assembly 200, the locking member 300 disengages from the connecting plate 430. At this time, the compression spring is in a second compressed state, and the degree of compression in the second compressed state is less than the degree of compression in the first compressed state, or the compression spring is in its original length state. Specifically, when the locking member 300 is in the second position, it releases its squeezing effect on the connecting plate 430. At this time, under the elastic force of the compression spring, the support frame 400 can retract, so that the roller brush of the roller brush assembly 100 can contact the ground for normal cleaning operations. It should be noted that when the locking member 300 disengages from the connecting plate 430, the compression spring extends. When the support frame 400 is completely unrestricted, the compression spring can return to its original length. However, to prevent the support frame 400 from disengaging from the roller brush assembly 100 unrestricted, a limiting structure is provided between the support frame 400 and the roller brush assembly 100. When the support frame 400 retracts a certain distance, it will be limited by the limiting structure and will not retract further. At this time, the compression spring may still be in a compressed state, but the degree of compression in this state is less than that when the locking member 300 abuts against the connecting plate 430 of the support frame 400. Therefore, when the support frame 400 is in the retracted state, the compression spring can be in a second compressed state or its original length.

[0082] In some embodiments, the locking member 300 has a first locking portion 310, and correspondingly, the roller brush assembly 100 has a second locking portion 111, which can be locked in place with or disengaged from the first locking portion 310 to release the lock.

[0083] Based on the above settings, when the locking member 300 is in the first position relative to the handle assembly 200, the first locking part 310 and the second locking part 111 cooperate to lock the roller brush assembly 100 and the handle assembly 200, so that the handle assembly 200, the locking member 300 and the roller brush assembly 100 cannot move relative to each other. In this case, the handle assembly 200 can be kept from tipping over relative to the roller brush assembly 100, so that the floor scrubber can stand upright without tipping over when not in use.

[0084] Conversely, when the locking member 300 is in the second position relative to the handle assembly 200, the first locking part 310 disengages from the second locking part 111, so that the roller brush assembly 100 can rotate relative to the handle assembly 200, thereby adjusting the angle of the handle assembly 200 relative to the roller brush assembly 100 to facilitate user operation of the floor scrubber.

[0085] In this embodiment, the handle assembly 200 can rotate relative to the roller brush assembly 100 for user convenience. When the user is not using the floor scrubber, the locking member 300 is slid to lock the first locking part 310 and the second locking part 111 together, preventing the locking member 300 from moving relative to the roller brush assembly 100. Since the locking member 300 is connected to the handle assembly 200, the handle assembly 200 is locked together with the roller brush assembly 100 along with the locking member 300, thereby preventing the handle assembly 200 from rotating relative to the roller brush. At this time, it can be ensured that the handle assembly 200 will not tip over when the floor scrubber is standing.

[0086] In some embodiments, one of the first locking part 310 and the second locking part 111 is a protruding structure and the other is a recessed structure, and the protruding structure and the recessed structure are adapted to each other. When the locking member 300 slides to the first position, the protruding structure is located in the recessed structure, so that the relative movement between the locking member 300 and the roller brush assembly 100 can be restricted by the cooperation between the protruding structure and the recessed structure. Furthermore, the locking member 300 is disposed on the handle assembly 200, so that the handle assembly 200 cannot rotate relative to the roller brush assembly 100 with the locking member 300, thereby achieving locking between the handle assembly 200 and the roller brush assembly 100, preventing the handle assembly 200 from rotating and tipping over, and facilitating the placement of the floor scrubber.

[0087] The first locking part 310 can be a protruding structure, while the second locking part 111 can be a recessed structure; alternatively, the first locking part 310 can be a recessed structure, and the second locking part 111 can be a protruding structure. The specific method can be selected according to the actual working conditions.

[0088] Optionally, the outer wall of the locking member 300 is provided with an elongated groove structure extending along the sliding direction of the locking member 300, and correspondingly, the top of the roller brush assembly 100 is provided with an elongated protrusion structure extending along the sliding direction of the locking member 300. Thus, as the locking member 300 slides towards the first position, the elongated protrusion structure gradually slides into the elongated groove structure. When the elongated protrusion structure is completely inserted into the elongated groove structure, the handle assembly 200 and the roller brush assembly 100 are locked, preventing angle adjustment. When it is necessary to release the lock, the locking member 300 is slid in the opposite direction towards the second position, causing the elongated protrusion structure to gradually slide out of the elongated groove structure. When the elongated protrusion structure is completely inserted into the elongated groove structure, the handle assembly 200 and the roller brush assembly 100 are unlocked, allowing the handle assembly 200 to swing and adjust its angle.

[0089] To improve the stability and reliability of the locked state and prevent disengagement, the locking member 300 may have multiple first locking portions 310, and correspondingly, the roller brush assembly 100 may have multiple second locking portions 111. Thus, when the locking member 300 is in the first position relative to the handle assembly 200, the multiple first locking portions 310 and the multiple second locking portions 111 engage in a one-to-one correspondence. This arrangement allows for multi-point locking through the individual engagement of the multiple first locking portions 310 and the multiple second locking portions 111, thereby increasing the locking force and ensuring that the handle assembly 200 does not rotate relative to the roller brush assembly 100 in the locked state, thus preventing the floor scrubber from tipping over when standing upright.

[0090] In some embodiments, the locking member 300 is a sleeve that is slidably fitted onto the outside of the handle assembly 200. On the one hand, the locking member 300 can be installed through the handle assembly 200; on the other hand, it also facilitates the sliding of the locking member 300 relative to the handle assembly 200, so as to switch the position state of the locking member 300 between the first position and the second position.

[0091] In this embodiment, the handle assembly 200 includes a handle bar 210 and a connector 220. One end of the handle bar 210 is rotatably connected to the connector 220 via a first connecting shaft, and the connecting shaft is rotatably connected to the roller brush assembly 100 via a second connecting shaft, with the axis of the first connecting shaft perpendicular to the axis of the second connecting shaft. This allows the connector 220 to rotate relative to the handle bar 210 around the first connecting shaft, and the roller brush assembly 100 to rotate relative to the connector 220 around the second connecting shaft, with the rotation direction of the roller brush assembly 100 perpendicular to the rotation direction of the connector 220. This allows the roller brush assembly 100 (or the handle bar) to rotate in multiple directions to adjust the angle between the roller brush assembly 100 and the handle assembly 200, ensuring that the roller brush assembly 100 is always in contact with the ground. Furthermore, the user can freely rotate the handle assembly 200 to operate the floor scrubber.

[0092] To prevent disengagement, the locking member 300 has a first limiting portion 320, and correspondingly, the handle assembly 200 has a second limiting portion 211. Thus, when the locking member 300 is in the first position relative to the handle assembly 200, the first limiting portion 320 and the second limiting portion 211 engage in a limiting cooperation. Through the cooperation of the first limiting portion 320 and the second limiting portion 211, the movement of the locking member 300 relative to the roller brush assembly 100 can be restricted, thereby effectively preventing the first locking portion 310 and the second locking portion 111 from disengaging and causing disengagement, thus ensuring the stability and reliability of the locking state. Simultaneously, through the cooperation of the first limiting portion 320 and the second limiting portion 211, the locking member 300 can also stop against the support frame 400, preventing the support frame 400 from retracting under the elastic force of the elastic return member 500, thereby allowing the floor scrubber to stand stably without tilting or tipping over.

[0093] Optionally, one of the first limiting part 320 and the second limiting part 211 is a convex structure and the other is a concave structure, and the convex structure and the concave structure are adapted to each other. In this way, the convex structure can move into the concave structure to achieve a snap-fit ​​engagement, thereby preventing the locking member 300 from moving relative to the roller brush assembly 100 and disengaging.

[0094] In one specific embodiment, the handle assembly 200 has an elastic connecting piece 212, and the convex structure is connected to the elastic connecting piece 212, so that when the convex structure is subjected to a compressive force, the convex structure can move through the elastic deformation of the elastic connecting piece 212, so as to allow the convex structure to enter the concave structure.

[0095] Specifically, one end of the elastic connecting piece 212 can be connected to the outer wall of the handle 210, and the protruding structure is connected to the other end of the elastic connecting piece 212 so that the protruding structure can move.

[0096] In addition, the handle assembly 200 may have multiple elastic connecting pieces 212, each elastic connecting piece 212 being connected to an outward protrusion structure, and each outward protrusion structure corresponding to a corresponding inward concave structure. In this way, the engagement stability can be improved by the interlocking of multiple outward protrusion structures and multiple inward concave structures, so as to prevent the locking member 300 from accidentally disengaging from the roller brush assembly 100 and causing accidental disengagement.

[0097] In some embodiments, the handle assembly 200 further includes a third limiting portion 213, which is located on the side of the second limiting portion 211 away from the roller brush assembly 100. When the locking member 300 is in the second position relative to the handle assembly 200, the first limiting portion 320 engages with the third limiting portion 213. This allows the locking member 300 to remain stationary relative to the handle assembly 200 when the locking state is released, thus preventing the locking member 300 from moving to the first position during user operation of the floor scrubber, which would prevent the handle assembly 200 from rotating relative to the roller brush assembly 100, thereby ensuring the normal operation of the floor scrubber.

[0098] In summary, the floor scrubber of this embodiment, when not in use, has its locking member sliding to the first position, where it is supported by the support frame. Simultaneously, the movement of the locking member keeps the handle assembly in an upright, locked state, ensuring the scrubber stands stably without tilting or tipping over, thus achieving stable placement. When the scrubber needs to be used, the locking member slides to the second position. By retracting the support frame without interfering with the contact between the roller brush assembly and the floor, this operation also unlocks the handle assembly from the support frame or roller brush assembly, allowing the handle assembly to rotate and enabling normal cleaning operations such as floor scrubbing. Furthermore, the floor scrubber of this embodiment has a simpler locking structure, simplifying the design, reducing the number of parts, making it convenient and easy to operate, and providing better stability. When stored upright, the floor scrubber of this embodiment exhibits better upright stability even when the storage surface is tilted, and it meets the requirements of the 10-degree tilt test for safety regulations.

[0099] The parts not described in detail in this specification are techniques known to those skilled in the art.

[0100] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A floor scrubbing machine, characterized in that, include: The roller brush assembly (100), handle assembly (200), locking element (300), support frame (400) and resilient return element (500). One end of the handle assembly (200) is movably connected to the roller brush assembly (100), the support frame (400) is disposed at the top of the roller brush assembly (100) and is movable relative to the roller brush assembly (100), the locking member (300) is slidably connected to the handle assembly (200) and is in contact with the support frame (400); the locking member (300) and the support frame (400) can be in contact or separated; The resilient return member (500) connects the support frame (400) and the roller brush assembly (100), and the resilient return member (500) is configured to drive the support frame (400) to have a tendency to move toward the extension direction of the handle assembly (200). When the locking member (300) is in a first position relative to the handle assembly (200), the locking member (300) drives the support frame (400) to move in a direction away from the extension direction of the handle assembly (200), so that at least a portion of the support frame (400) protrudes beyond the roller brush assembly (100), and the elastic return member (500) is in a first compressed state; When the locking member (300) is in the second position relative to the handle assembly (200), the support frame (400) moves toward the extension direction of the handle assembly (200) so that a portion of the support frame (400) retracts into the roller brush assembly (100), the elastic return member (500) is in a second compression state, and the degree of compression of the second compression state is less than that of the first compression state, or the elastic return member (500) is in the original state.

2. The floor scrubber according to claim 1, characterized in that, The support frame (400) includes a first side plate (410) and a second side plate (420) spaced apart along a first direction, and a connecting plate (430) connecting the first side plate (410) and the second side plate (420). The first direction is perpendicular to the sliding direction of the locking member (300) and the moving direction of the floor scrubber, respectively. The connecting plate (430) is provided with a clearance hole (431), and the handle assembly (200) passes through the clearance hole (431). The first side plate (410) and the second side plate (420) are respectively provided with a first guide structure; The roller brush assembly (100) has a second guide structure on each side along the first direction, and the second guide structure is connected to the first guide structure on the corresponding side.

3. The floor scrubbing machine according to claim 2, characterized in that, One of the first guide structure and the second guide structure is a protruding post (112), and the other is an elongated hole (411). The elongated hole (411) extends along the sliding direction of the locking member (300), and the protrusion (112) is movably disposed in the elongated hole (411).

4. The floor scrubbing machine according to claim 2, characterized in that, The first side plate (410) and the second side plate (420) are each provided with a support leg (412) at one end away from the connecting plate (430); When the locking member (300) is in a first position relative to the handle assembly (200), the legs (412) of the first side plate (410) and the second side plate (420) extend beyond the roller brush assembly (100); When the locking member (300) is in the second position relative to the handle assembly (200), the legs (412) of the first side plate (410) and the second side plate (420) retract into the roller brush assembly (100).

5. The floor scrubber according to claim 1, characterized in that, The elastic return member (500) includes a compression spring; At least one of the roller brush assembly (100) and the support frame (400) is provided with a limiting groove, and the end of the compression spring is disposed in the limiting groove.

6. The floor scrubbing machine according to claim 5, characterized in that, When the locking member (300) is in a first position relative to the handle assembly (200), the locking member (300) abuts against the connecting plate (430) of the support frame (400), and the compression spring is in a first compressed state; When the locking member (300) is in the second position relative to the handle assembly (200), the locking member (300) disengages from the connecting plate (430), the compression spring is in a second compression state, and the degree of compression in the second compression state is less than that in the first compression state, or the compression spring is in its original length state.

7. The floor scrubber according to any one of claims 1 to 4, characterized in that, The locking member (300) has a first locking part (310), and the roller brush assembly (100) has a second locking part (111). When the locking member (300) is in a first position relative to the handle assembly (200), the first locking part (310) cooperates with the second locking part (111) to lock the roller brush assembly (100) and the handle assembly (200); When the locking member (300) is in the second position relative to the handle assembly (200), the first locking part (310) disengages from the second locking part (111) so that the roller brush assembly (100) is rotatable relative to the handle assembly (200).

8. The floor scrubbing machine according to claim 7, characterized in that, One of the first locking part (310) and the second locking part (111) is a protruding structure, and the other is a groove structure; The protruding structure is adapted to the groove structure.

9. The floor scrubber according to any one of claims 1 to 4, characterized in that, The locking member (300) has a first limiting portion (320), and the handle assembly (200) has a second limiting portion (211). When the locking member (300) is in a first position relative to the handle assembly (200), the first limiting part (320) and the second limiting part (211) engage in a limiting cooperation.

10. The floor scrubbing machine according to claim 9, characterized in that, One of the first limiting part (320) and the second limiting part (211) is a convex structure, and the other is a limiting concave structure; The convex structure is adapted to the concave structure.

11. The floor scrubber according to claim 10, characterized in that, The handle assembly (200) also has a third limiting part (213) located on the side of the second limiting part (211) away from the roller brush assembly (100); When the locking member (300) is in the second position relative to the handle assembly (200), the first limiting part (320) cooperates with the third limiting part (213).

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