Sewage suction mechanism and scrubber

Abstract

The utility model relates to a dirt suction mechanism and a scrubber. The dirt suction mechanism comprises a water suction rake; the suspension mechanism comprises a base and a suspension assembly, the suspension assembly is arranged on the base in a telescopic motion mode and can rotate in the circumferential direction relative to the base, and the suspension assembly is connected with the water absorption rake; wherein the base is provided with an extension limiting structure and a retraction limiting structure, and the water absorption rake has a working position and a lifting position; when the water absorption rake is located at the working position, the hanging assembly stretches out of the base and is in limiting fit with the stretching-out limiting structure, and when the water absorption rake is located at the lifting position, the hanging assembly is retracted into the base and is in limiting fit with the retracting limiting structure after rotating by a preset angle. According to the suspension mechanism, switching of the water absorption rake between the working position and the lifting position can be achieved through simple limiting matching, reliability is high, and failure is not prone to occurring.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a dirt suction mechanism and a floor scrubber. Background Art

[0002] A floor scrubber is a professional cleaning device that combines scrubbing and suction. It uses the rotation or vibration of the brush to scrub the ground, automatically sprays cleaning liquid, and then quickly recovers sewage through the water absorption system to achieve efficient cleaning of the ground. In actual applications, according to different cleaning needs, floor scrubbers are designed to allow operators to easily adjust the status of the equipment. For example, when the water absorption function does not need to be enabled, the water absorption rake can be raised or flipped so that it does not touch the ground. Especially when dealing with heavily polluted scenes, in order to ensure that the cleaning liquid can act more fully and lastingly on the stained ground, and at the same time ensure that the brush has greater effective pressure on the ground, the water absorption rake needs to be lifted off the ground. However, traditional water absorption rakes often fail to lift off the ground due to the overly complicated design of the lifting or flipping mechanism. Utility Model Content

[0003] Based on this, it is necessary to provide a dirt suction mechanism and a floor scrubber to address the problem of the water suction rake failing to leave the ground in the prior art.

[0004] In a first aspect of the present application, a dirt suction mechanism is provided, comprising:

[0005] Suction rakes; and,

[0006] A suspension mechanism, the suspension mechanism comprising a base and a suspension assembly, the suspension assembly being telescopically disposed on the base and being rotatable relative to the base, the suspension assembly being connected to the water suction rake;

[0007] In which, the base is provided with an extension limit structure and a retraction limit structure, and the water suction rake has a working position and a lifting position; when the water suction rake is in the working position, the suspension component extends out of the base, and the suspension component is limitedly matched with the extension limit structure; when the water suction rake is in the lifting position, the suspension component is retracted into the base and is limitedly matched with the retraction limit structure after rotating a preset angle.

[0008] The dirt suction mechanism of this solution is applied to a floor scrubber. When the floor to be cleaned is seriously dirty and the floor scrubber needs to switch to the heavy dirt scene working mode, by lifting the water suction rake upward, the suspension component will be retracted to the inside of the base and disengaged from the extension limit structure. After that, after the suspension component rotates to a preset angle, the suspension component can cooperate with the retraction limit structure to switch the water suction rake to the lifting position. At this time, the water suction rake is suspended off the ground, thereby ensuring that the cleaning liquid can act on the stained floor more fully and lastingly, and at the same time ensuring that the brush has a greater effective pressure on the floor. The suspension mechanism of this solution includes a base provided with an extension limit structure and a retraction limit structure, and a suspension component that is telescopically arranged on the base and can rotate circumferentially relative to the base. The water suction rake is touched on and off the ground by the limit cooperation of the suspension component and the extension limit structure or the limit cooperation of the suspension component and the retraction limit structure; the water suction rake can be switched between the working position and the lifting position by simple limit cooperation, with high reliability and not easy to fail.

[0009] In a second aspect of the present application, a floor scrubber is also provided, comprising:

[0010] a chassis, wherein a floor brushing mechanism is provided on the chassis; and

[0011] As described above, the dirt suction mechanism is arranged on the chassis and at the rear side of the floor brushing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] FIG1 is a schematic structural diagram of a floor scrubber according to an embodiment.

[0015] FIG. 2 is a cross-sectional structural diagram of a suspension mechanism according to an embodiment.

[0016] Figure 3 A partial cross-sectional structural diagram of the suspension mechanism from another perspective.

[0017] Figure 4 The exploded structure diagram of the suspension mechanism of another embodiment.

[0018] Figure 5 An assembly diagram of a water suction rake according to an embodiment.

[0019] Figure 6 for Figure 5 Exploded structure diagram.

[0020] Figure 7 A cross-sectional structural diagram of a water suction rake from one perspective.

[0021] Figure 8 A cross-sectional structural diagram of the water suction rake from another perspective.

[0022] Description of reference numerals:

[0023] 100, floor scrubber; 10, dirt suction mechanism; 11, water suction rake; 111, trigger unit; 112, first housing; 112a, slideway; 112b, lock groove; 113, second housing; 113a, matching hole; 113b, first stop groove; 113c, second stop groove; 114, scraper assembly; 114a, front scraper; 114b, rear scraper; 115, switch; 115a, main body; 115b, operating unit; 115c, lock hook; 115d, stop hook; 116, fixed height wheel; 117, dirt suction port; 118, spherical groove; 12 , suspension mechanism; 121, end cover; 122, base; 122a, first limiting step; 122b, second limiting step; 122c, guide groove; 122d, mounting plate; 123, suspension assembly; 123a, limiting rod; 1231a, first inclined step; 1232a, second positioning step; 123b, top rod; 1231b, second inclined step; 123c, connecting rod; 1231c, ball head; 123d, connecting piece; 1231d, first positioning step; 124, elastic piece; 20, chassis; 21, universal wheel; 30, floor brushing mechanism. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that if the terms "length", "width", "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If present, the terms "vertical", "horizontal", "upper", "lower", and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0030] Please refer to FIG. 1 , which shows a floor scrubber 100 according to an embodiment of the present application. It should be noted that FIG. 1 shows only a partial structure of the floor scrubber 100 , and parts such as the body are not shown, but this does not constitute a limitation to the present application.

[0031] Exemplarily, the floor scrubber 100 includes a chassis 20, a floor brushing mechanism 30, and a dirt suction mechanism 10. The chassis 20 is the main body of the floor scrubber 100, and is used to load and fix the floor brushing mechanism 30, the dirt suction mechanism 10, and related components such as the body.

[0032] In an optional embodiment, the chassis 20 is equipped with a power device so that the floor scrubber 100 has the ability to actively walk and reduce the thrust or pull applied to the floor scrubber 100 by the user. For example, the power device at least includes a rotatable walking wheel external to the chassis 20. Alternatively, in another optional embodiment, the floor brushing mechanism 30 includes two disc brushes, which can be relatively tilted and installed. When the two disc brushes rotate, friction is generated with the ground, which can give the floor scrubber 100 a driving force to move forward; or, in another optional embodiment, the floor brushing mechanism 30 includes a roller brush, the axis of which is perpendicular to the forward direction of the floor scrubber 100. When the roller brush rotates, friction is generated with the ground, which can also drive the floor scrubber 100 to move. Of course, in other embodiments, other ways can be used to drive the floor scrubber to move forward, which will not be described here. In addition, preferably, a universal wheel 21 can also be provided on the chassis 20 to enable the floor scrubber 100 to have a more flexible steering ability. The universal wheel 21 is installed at any position on the chassis 20 , for example, at the front, middle, or rear of the chassis 20 .

[0033] The dirt suction mechanism 10 is arranged at the rear side of the floor brushing mechanism 30 . When the floor scrubber 100 moves forward, the wastewater and dirt peeled off by the floor brushing mechanism 30 when scrubbing the floor can be sucked and recovered in time by the following dirt suction mechanism 10 .

[0034] Please refer to FIG. 2 , in the present application, the dirt suction mechanism 10 includes a water suction rake 11 and a suspension mechanism 12. The suspension mechanism 12 includes a base 122 and a suspension assembly 123, the suspension assembly 123 is telescopically disposed on the base 122 and can rotate circumferentially relative to the base 122, and the suspension assembly 123 is connected to the water suction rake 11.

[0035] In one embodiment, a mounting plate 122d is convexly provided on the outer wall of the base 122, and a mounting hole is provided on the mounting plate 122d. Specifically, the mounting hole is a through hole, and a threaded connection component (which may be a bolt, a screw, etc.) is inserted into the mounting hole, and the threaded connection component is screwed into a preset threaded hole on the chassis 20, so that the suspension mechanism 12 can be assembled and fixed to the chassis 20. Of course, in other embodiments, the above-mentioned threaded connection method can also be replaced by any one of snap-fit ​​connection, magnetic connection, bonding, welding, etc., which can be selected according to actual needs.

[0036] Among them, the base 122 is provided with an extension limit structure and a retraction limit structure, and the water suction rake 11 has a working position and a lifting position; when the water suction rake 11 is in the working position, the suspension component 123 extends out of the base 122, and the suspension component 123 is limitedly matched with the extension limit structure; when the water suction rake 11 is in the lifting position, the suspension component 123 is retracted into the base 122 and is limitedly matched with the retraction limit structure after rotating a preset angle.

[0037] It can be understood that the extension movement of the suspension component 123 corresponds to the downward movement of the suspension component 123 and the water suction rake 11 in the working state, at which time the water suction rake 11 is close to the ground; the retraction movement of the suspension component 123 corresponds to the upward movement of the suspension component 123 and the water suction rake 11 in the working state, at which time the water suction rake 11 is far away from the ground and suspended.

[0038] In summary, the implementation of the technical solution of this embodiment will have the following beneficial effects: the dirt suction mechanism 10 of this solution is applied to the floor scrubber 100. When the floor to be cleaned is seriously dirty and the floor scrubber 100 needs to switch to the heavy dirt scene working mode, by lifting the water suction rake 11 upwards, the suspension component 123 will be retracted to the inside of the base 122 and disengaged from the extension limit structure. After that, after the suspension component 123 rotates a preset angle, the suspension component 123 can cooperate with the retraction limit structure to switch the water suction rake 11 to the lifting position. At this time, the water suction rake 11 is suspended off the ground, thereby ensuring that the cleaning liquid can act on the stained floor more fully and lastingly, while ensuring that the brush of the floor scrubber 100 has a greater effective pressure on the ground. The suspension mechanism 12 of the present solution includes a base 122 provided with an extension limit structure and a retraction limit structure, and a suspension component 123 which is telescopically arranged on the base 122 and can rotate circumferentially relative to the base 122. The water suction rake 11 can touch the ground and leave the ground through the limiting cooperation between the suspension component 123 and the extension limit structure or the limiting cooperation between the suspension component 123 and the retraction limit structure; the water suction rake 11 can be switched between the working position and the lifting position through simple limiting cooperation, which has high reliability and is not prone to failure.

[0039] Preferably, on the basis of the above embodiment, the water suction rake 11 is connected to two suspension mechanisms 12 arranged at intervals. On the one hand, the water suction rake 11 is connected to the chassis 20 through the two suspension mechanisms 12, which improves the installation strength; on the other hand, the two suspension mechanisms 12 share the weight of the water suction rake 11, which improves safety and durability, and makes the force on the water suction rake 11 more uniform, preventing the water suction rake 11 from tilting or jamming when it is raised and lowered when only a single suspension mechanism 12 is provided.

[0040] Please continue to refer to FIG1 . In addition, trigger parts 111 are respectively provided at both ends of the length direction of the water suction rake 11 , so that the user can operate the water suction rake 11 conveniently, so as to switch the water suction rake 11 from the working position to the lifting position or from the lifting position to the working position.

[0041] Please continue to refer to Figure 2. On the basis of any of the above embodiments, the suspension mechanism 12 also includes an end cover 121 and an elastic member 124. The end cover 121 is assembled with the base 122. One end of the elastic member 124 abuts against the inner wall of the end cover 121, and the other end of the elastic member 124 abuts against the suspension component 123. When the water suction rake 11 is in the working position, the suspension component 123 can elastically expand and contract and float relative to the base 122 through the elastic member 124.

[0042] When in normal working state, the water suction rake 11 is suspended below the suspension mechanism 12, at which time the end cover 121 is at the top and placed in the mounting hole of the chassis 20, the base 122 is located below the end cover 121, and the suspension assembly 123 is between the water suction rake 11 and the base 122.

[0043] When the water suction rake 11 is in the working position, the suspension component 123 is exactly matched with the extension limit structure to prevent the suspension component 123 from falling off the base 122, but at this time the suspension component 123 is also exactly in the extreme position at one end in the base 122, and the suspension component 123 has a travel distance at one end moving toward the retracted limit structure. When there is a height difference or unevenness on the ground to be cleaned, the water suction rake 11 will float adaptively according to the ups and downs of the ground when passing through. At this time, the elastic member 124 continuously applies elastic thrust to the suspension component 123, thereby ensuring that the water suction rake 11 and the suspension component 123 can be elastically stretched and floated, that is, ensuring the adaptability of the water suction rake 11 to the uneven ground, the water suction rake 11 can always be close to the ground to ensure the sewage suction effect, and at the same time, the water suction rake 11 will not be hard scraped against the ground, which improves the passing ability of the water suction rake 11.

[0044] Please continue to refer to FIG. 2. In the above embodiment, the suspension assembly 123 needs to be rotated manually to rotate the suspension assembly 123 recovered into the base 122 to a preset angle and cooperate with the retracting limit structure, which has the problem of low automation. In view of this, in an optional embodiment, the suspension assembly 123 includes a limit rod 123a, a top rod 123b and a connecting rod 123c. The limit rod 123a is movably connected to the top rod 123b, the connecting rod 123c is fixedly connected to the top rod 123b, and at least part of the connecting rod 123c extends to the outside of the base 122 and is connected to the water suction rake 11, and the elastic member 124 abuts between the limit rod 123a and the inner wall of the end cover 121.

[0045] Please continue reading Figure 3 and Figure 4 A first inclined step 1231a is provided at one end of the limiting rod 123a away from the water suction rake 11, and a second inclined step 1231b is provided at one end of the top rod 123b away from the water suction rake 11. When the suspension assembly 123 moves and is recovered to the inside of the base 122 to switch from the working position to the lifting position, the second inclined step 1231b can axially abut against and slide relatively with the first inclined step 1231a, and the elastic member 124 applies an elastic thrust to the limiting rod 123a, so that after the limiting rod 123a rotates by a preset angle, the first inclined step 1231a is limitedly matched with the retracted limiting structure.

[0046] When the water suction rake 11 is lifted and the water suction rake 11 pushes the suspension assembly 123 upward to be recovered to the base 122, the second inclined plane step 1231b will form an axial abutment with the first inclined plane step 1231a, and the elastic member 124 will be compressed. At this time, under the action of the inclined plane matching and the elastic thrust applied by the elastic member 124, the second inclined plane step 1231b and the first inclined plane step 1231a automatically slide relative to each other in the circumferential direction, so that the first inclined plane step 1231a slides to the retracting limit structure and forms a limit match with it, so that the suspension assembly 123 and the water suction rake 11 are positioned in the lifting position, and the water suction rake 11 is suspended off the ground, ensuring the contact time and uniformity of the cleaning liquid with the ground, and ensuring the pressure of the brushing mechanism 30 on the ground, so as to obtain a better cleaning effect. In addition, this embodiment does not require manual rotation by manpower, improves the automation level of the dirt suction mechanism 10 and the floor scrubber 100, reduces dependence on manpower, and helps to improve the user experience.

[0047] In actual use, it is often encountered that the working position and the lifting position of the water suction rake 11 are frequently switched. In order to improve the switching efficiency, further, in an optional embodiment, the retracting limit structure includes a plurality of first limit steps 122a arranged at intervals along the circumferential direction of the inner wall of the base 122, and the extending limit structure includes a plurality of second limit steps 122b arranged at intervals along the circumferential direction of the inner wall of the base 122, and the first limit steps 122a and the second limit steps 122b are alternately arranged one by one in the circumferential direction; the limit rod 123a is provided with a plurality of first inclined steps 1231a arranged at intervals along the circumferential direction of the base 122, and the top rod 123b is provided with a plurality of second inclined steps 1231b arranged at intervals along the circumferential direction of the base 122.

[0048] Each time the water suction rake 11 is pressed to retract the suspension assembly 123, the limiting rod 123a rotates by a preset angle, so that when the first inclined step 1231a is limitedly engaged with the first limiting step 122a, the top rod 123b is disengaged from the second limiting step 122b, or when the top rod 123b is limitedly engaged with the second limiting step 122b, the first inclined step 1231a is disengaged from the first limiting step 122a. By providing more first limiting steps 122a, second limiting steps 122b, second inclined plane steps 1231b and first inclined plane steps 1231a, on the one hand, the arrangement density of the first limiting steps 122a and the second limiting steps 122b in the circumferential direction is improved, so that only a small preset angle needs to be rotated to complete the limiting cooperation between the first inclined plane step 1231a and the first limiting step 122a or the limiting cooperation between the top rod 123b and the second limiting step 122b, thereby improving the switching efficiency of the water suction rake 11 between the working position and the lifting position; on the other hand, multiple pairs of first inclined plane steps 1231a and second inclined plane steps 1231b are provided to abut axially, so that the force on the limiting rod 123a in the circumferential direction is more uniform, and under the thrust of the elastic member 124, the circumferential rotation can be more stable and smooth, thus avoiding skewing and jamming.

[0049] In addition, in another optional embodiment, the inner wall of the base 122 is further recessed with a plurality of guide grooves 122c, which are arranged at intervals along the circumferential direction of the inner wall of the base 122, and each guide groove 122c is extended along the telescopic movement direction of the suspension assembly 123, and the limit rod 123a and the top rod 123b can telescopically slide along the guide groove 122c. When the limit rod 123a and the top rod 123b move back and forth between the first limit step 122a and the second limit step 122b, the guide groove 122c provides a reciprocating sliding guide function for the limit rod 123a and the top rod 123b, and prevents the limit rod 123a and the top rod 123b from accidentally rotating within the movement range.

[0050] It should be noted that a gap is formed between the upper end of the guide groove 122c and the end cover 121, so that when the second inclined surface step 1231b is axially abutted against the first inclined surface step 1231a, the limiting rod 123a escapes from the guide groove 122c and obtains the rotational freedom in the circumferential direction. That is, under the elastic force of the elastic member 124 and the inclined sliding action of the first inclined surface step 1231a and the top cover inclined surface step, the first inclined surface step 1231a can rotate circumferentially from the guide groove 122c to the first limiting step 122a, so that the water suction rake 11 is switched from the working position to the lifting position, or the first inclined surface step 1231a can rotate circumferentially from the first limiting step 122a to the guide groove 122c, so that the water suction rake 11 is switched from the lifting position to the working position.

[0051] In the above embodiment, the suspension assembly 123 also includes a connecting member 123d, one end of which is fixedly connected to the connecting rod 123c and the top rod 123b, and the other end of the connecting member 123d is provided with a first positioning step 1231d, and the limiting rod 123a is provided with a second positioning step 1232a. When the first inclined step 1231a is limitedly matched with the first limiting step 122a, the first positioning step 1231d is engaged with the second positioning step 1232a to keep the water suction rake 11 in the raised position.

[0052] Specifically, one end of the connecting member 123d is provided with an external thread, and the connecting rod 123c and the top rod 123b are both provided with internal threads, so that the connecting member 123d can be threadedly connected and fixed with the connecting rod 123c and the top rod 123b, and the installation method is simple and the connection strength is high. By means of the first positioning step 1231d and the second positioning step 1232a being engaged, the suspension assembly 123 is positioned, so that the water suction rake 11 can be kept in the raised position to prevent the water suction rake 11 from moving toward the ground.

[0053] In another optional embodiment, a ball head 1231c is formed at one end of the connecting rod 123c extending out of the base 122, and a spherical groove 118 is formed in a recessed manner on the water suction rake 11, and the ball head 1231c is detachably disposed in the spherical groove; or, a spherical groove is formed in one end of the connecting rod 123c extending out of the base 122, and the water suction rake 11 is provided with a ball head 1231c, and the ball head 1231c is detachably disposed in the spherical groove. In this way, the water suction rake 11 and the connecting rod 123c can form a quick-plug connection structure, which is convenient for users to install, disassemble, replace and clean the water suction rake 11. Of course, in other embodiments, other structural forms of quick-disconnect installation structures can also be used between the connecting rod 123c and the water suction rake 11, and flexible selection can be made according to actual needs.

[0054] Please continue reading Figures 5 to 8Furthermore, in order to facilitate cleaning and replacement of worn accessories, the water suction rake 11 adopts a detachable assembled structure. For example, in one embodiment, the water suction rake 11 includes a first shell 112, a second shell 113, a scraper assembly 114 and a switch 115, and the scraper assembly 114 is detachably arranged on the first shell 112. Optionally, the scraper assembly 114 includes a front scraper 114a and a rear scraper 114b, and the front scraper 114a and the rear scraper 114b are detachably installed on the front and rear sides of the first shell 112, respectively, and a plurality of notches for dirty liquid to enter are arranged at intervals on the side of the front scraper 114a close to the ground. The installation method of the scraper assembly 114 on the first shell 112 can be, but is not limited to, at least one of bonding, snap-on connection, magnetic connection, screw connection, etc. Since the front scraper 114a and the rear scraper 114b are generally plastic parts, they will be worn out after long-term scraping on the ground, so a detachable installation method is adopted to facilitate timely replacement after wear and tear.

[0055] The second housing 113 is disposed on the outside of a portion of the scraper assembly 114. The lower portion of the scraper assembly 114 extends a certain length beyond the bottom of the first housing 112 and the second housing 113, so that the scraper assembly 114 can normally contact the ground and avoid interference and wear between the first housing 112 and the second housing 113 and the ground.

[0056] The switch key 115 is movably disposed on the second housing 113, and the switch key 115 has a locking position and an unlocking position; when the switch key 115 is in the locking position, the switch key 115 is clamped and fixed with the first housing 112 to lock the first housing 112 and the second housing 113; when the switch key 115 is in the unlocking position, the switch key 115 is separated from the first housing 112 to unlock the first housing 112 and the second housing 113. That is, by operating the switch key 115 to switch between the locking position and the unlocking position, the water suction rake 11 can be flexibly switched between the working state and the non-working state, and it is convenient to disassemble for internal cleaning and replacement of vulnerable parts.

[0057] Specifically, the switch key 115 includes a main body 115a, an operating part 115b and a lock hook part 115c, the operating part 115b and the lock hook part 115c are respectively connected to the opposite sides of the main body 115a, and the second shell 113 is provided with a matching hole 113a, and the operating part 115b is exposed in the matching hole 113a. This makes it convenient for the user to push the operating part 115b, and then drive the switch key 115 to slide and switch between the locked position and the unlocked position. The first shell 112 is provided with a slide 112a and a lock groove 112b, and the main body 115a can be slidably arranged in the slide 112a to enable the switch key 115 to switch between the locked position and the unlocked position. The slide 112a can play a role in sliding guidance and limiting the switch key 115, ensuring that the switch key 115 slides smoothly and reliably.

[0058] When the switch key 115 is in the locked position, the lock hook portion 115c is inserted into the lock slot 112b; the lock hook portion 115c is engaged with the lock slot 112b, limiting the relative freedom of movement of the first shell 112 and the second shell 113, so that the first shell 112 and the second shell 113 can be locked and fixed. When the switch key 115 is in the unlocked position, the lock hook portion 115c is withdrawn from the lock slot 112b; the lock hook portion 115c is separated from the lock slot 112b, that is, the restraining force limiting the first shell 112 and the second shell 113 disappears, and the second shell 113 regains the freedom of movement relative to the first shell 112, so that the second shell 113 can be detached from the first shell 112, which is convenient for cleaning the internal chamber of the first shell 112 and / or the second shell 113, and for replacing the wiper assembly 114.

[0059] Furthermore, in order to ensure that the switch key 115 can be reliably maintained in the locked position and the unlocked position, and to prevent the switch key 115 from loosening and displacing to affect the structural stability and normal operation of the water suction rake 11, the second shell 113 is further provided with a first stop groove 113b and a second stop groove 113c spaced apart from each other on the basis of the above embodiment, and a stop hook 115d is provided at one end of the main body 115a. When the switch key 115 is in the locked position and the lock hook portion 115c is inserted into the lock groove 112b, the stop hook 115d is engaged with the first stop groove 113b; when the switch key 115 is switched to the unlocked position, the stop hook 115d disengages from the first stop groove 113b and engages with the second stop groove 113c.

[0060] In addition, the water suction rake 11 also includes at least a height-fixing wheel 116, a sewage suction port 117, etc. The height-fixing wheel 116 and the sewage suction port 117 are respectively installed on the second shell 113, wherein the height-fixing wheel 116 is used to control the height of the scraper assembly 114 from the ground and the angle of contact with the ground, so that the scraper assembly 114 is just in effective contact with the ground. The sewage suction port 117 is used to connect an external sewage suction pipe to suck the ground sewage collected by the water suction rake 11 into the sewage tank through the first shell 112 and the second shell 113.

[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A dirt suction mechanism, characterized in that: include: Suction rake; as well as, A suspension mechanism, the suspension mechanism comprising a base and a suspension assembly, the suspension assembly being telescopically disposed on the base and being rotatable relative to the base, the suspension assembly being connected to the water suction rake; In which, the base is provided with an extension limit structure and a retraction limit structure, and the water suction rake has a working position and a lifting position; when the water suction rake is in the working position, the suspension component extends out of the base, and the suspension component is limitedly matched with the extension limit structure; when the water suction rake is in the lifting position, the suspension component is retracted into the base and is limitedly matched with the retraction limit structure after rotating a preset angle.

2. The dirt suction mechanism according to claim 1, characterized in that: The suspension mechanism also includes an end cover and an elastic member, the end cover is assembled with the base, one end of the elastic member abuts against the inner wall of the end cover, and the other end of the elastic member abuts against the suspension assembly. When the water suction rake is in the working position, the suspension assembly can elastically expand and contract and float relative to the base through the elastic member.

3. The dirt suction mechanism according to claim 2, characterized in that: The suspension assembly includes a limit rod, a top rod and a connecting rod, wherein the limit rod is movably connected to the top rod, the connecting rod is fixedly connected to the top rod, and at least a portion of the connecting rod extends to the outside of the base and is connected to the water suction rake, and the elastic member abuts between the limit rod and the inner wall of the end cover; The end of the limit rod away from the water suction rake is provided with a first inclined step, and the end of the top rod away from the water suction rake is provided with a second inclined step. When the suspension assembly is moved and recovered to the inside of the base to switch from the working position to the lifting position, the second inclined step can axially abut against the first inclined step and slide relatively. The elastic member applies an elastic thrust to the limit rod so that after the limit rod is rotated by a preset angle, the first inclined step is limitedly matched with the retraction limit structure.

4. The dirt suction mechanism according to claim 3, characterized in that: The retracting limiting structure comprises a plurality of first limiting steps arranged at intervals along the circumferential direction of the inner wall of the base, and the extending limiting structure comprises a plurality of second limiting steps arranged at intervals along the circumferential direction of the inner wall of the base, and the first limiting steps and the second limiting steps are arranged alternately one by one in the circumferential direction; the limiting rod is provided with a plurality of first inclined steps arranged at intervals along the circumferential direction of the base, and the top rod is provided with a plurality of second inclined steps arranged at intervals along the circumferential direction of the base; Each time the water suction rake is pressed to retract the suspension assembly, the limiting rod rotates by a preset angle, so that when the first inclined surface step is limitedly engaged with the first limiting step, the push rod is disengaged from the second limiting step, or when the push rod is limitedly engaged with the second limiting step, the first inclined surface step is disengaged from the first limiting step.

5. The dirt suction mechanism according to claim 4, characterized in that: The inner wall of the base is also concavely formed with a plurality of guide grooves, and the plurality of guide grooves are arranged at intervals along the circumferential direction of the inner wall of the base, and each of the guide grooves is extended along the telescopic movement direction of the suspension assembly, and the limit rod and the push rod can telescopically slide along the guide groove; When the second inclined plane step is axially abutted against the first inclined plane step, the limiting rod escapes from the guide groove and obtains the rotational freedom in the circumferential direction.

6. The dirt suction mechanism according to claim 4, characterized in that: The suspension assembly also includes a connecting piece, one end of which is fixedly connected to the connecting rod and the top rod, the other end of the connecting piece is provided with a first positioning step, and the limiting rod is provided with a second positioning step. When the first inclined step is limitedly matched with the first limiting step, the first positioning step is engaged with the second positioning step to keep the water suction rake in the raised position.

7. The dirt suction mechanism according to claim 3, characterized in that: A ball head is formed at one end of the connecting rod extending out of the base, and a spherical groove is formed in the water suction rake, and the ball head is detachably inserted into the spherical groove; Alternatively, one end of the connecting rod extending out of the base is concavely provided with a spherical groove, and the water suction rake is provided with a ball head, and the ball head is detachably inserted into the spherical groove.

8. The dirt suction mechanism according to claim 1, characterized in that: The water suction rake comprises a first shell, a second shell, a scraper assembly and a switch key, wherein the scraper assembly is detachably arranged on the first shell, the second shell cover is arranged on the outside of a part of the scraper assembly, the switch key is movably arranged on the second shell, and the switch key has a locking position and an unlocking position; When the switch key is in the locking position, the switch key is clamped and fixed with the first shell to lock the first shell with the second shell; When the switch key is in the unlocking position, the switch key is separated from the first housing to unlock the first housing from the second housing.

9. The dirt suction mechanism according to claim 8, characterized in that: The switch key comprises a main body, an operating part and a lock hook part, wherein the operating part and the lock hook part are respectively connected to opposite sides of the main body, a matching hole is provided in the second shell, the operating part is exposed in the matching hole, the first shell is provided with a slideway and a lock groove, the main body can be slidably arranged in the slideway to enable the switch key to switch between a locked position and an unlocked position; When the switch key is in the locking position, the lock hook portion is inserted into the lock slot; when the switch key is in the unlocking position, the lock hook portion is withdrawn from the lock slot.

10. The dirt suction mechanism according to claim 9, characterized in that: The second shell is also provided with a first stop groove and a second stop groove spaced apart from each other, and a stop hook is provided at one end of the main body. When the switch key is in a locked position and the lock hook portion is inserted into the lock groove, the stop hook is engaged with the first stop groove; when the switch key is switched to an unlocked position, the stop hook is disengaged from the first stop groove and engaged with the second stop groove.

11. The dirt suction mechanism according to claim 1, characterized in that: A mounting plate is protruded from the outer wall of the base, and a mounting hole is opened on the mounting plate.

12. The dirt suction mechanism according to claim 1, characterized in that: Two trigger parts are respectively arranged at two ends of the water suction rake in the length direction, and the water suction rake is connected to the two suspension mechanisms arranged at intervals through the two trigger parts.

13. A floor scrubber, characterized in that: include: A chassis, wherein a floor brushing mechanism is provided on the chassis; as well as, The dirt suction mechanism according to any one of claims 1 to 12, wherein the dirt suction mechanism is disposed on the chassis and arranged at the rear side of the floor brushing mechanism.

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