CN113576354B - Water absorption lifting structure, water absorption device and floor washing machine - Google Patents

Abstract

The invention relates to a water absorption rake lifting structure, a water absorption device and a floor washing machine. The water absorption lifting structure is characterized in that the connecting arm is connected with the lifting arm through the first rotating shaft and the second rotating shaft, so that the water absorption lifting structure can drive the water absorption lifting structure to lift. During the in-service use, first pivot removes in the sliding space for the relative lifting arm of linking arm can be around the axis swing of second pivot, thereby the contained angle size of the relative lifting arm of adjustment linking arm. The connecting arm swings to drive the water absorption rake to swing so as to adjust the levelness of the water absorption rake relative to the ground. And after the first rotating shaft is adjusted to the target position, the first rotating shaft is locked relative to the connecting arm. Moreover, the whole operation flow is simple, and only the first rotating shaft needs to be driven to move in the sliding space, so that the angle adjustment can be realized when the connecting arm is in a swing arm state in the moving process, and the requirement of increasing the sealing property between the water absorption rake and the ground is met.

Description

Water absorption lifting structure, water absorption device and floor washing machine

Technical Field

The invention relates to the technical field of cleaning tools, in particular to a water absorption rake lifting structure, a water absorption device and a floor washing machine.

Background

The floor cleaning machine is often provided with a water suction rake, a vacuum state is formed after the water suction rake is horizontally contacted with the ground, and sewage is sucked into a vacuum area of the water suction rake along with the advancing of the floor cleaning machine and is sucked into a sewage tank of the floor cleaning machine along with a water suction pipe. Therefore, the quality of vacuum formed between the water absorption rake and the ground directly influences the water absorption effect of the water absorption rake, and the cleaning effect of the floor washing machine is also influenced. However, when the existing common water absorption scratcher is lifted or the contact angle of the water absorption scratcher and the ground is adjusted, the levelness is low, and the sealing performance formed by the rubber and the ground is poor, so that the forming quality of a vacuum environment is influenced.

Disclosure of Invention

Therefore, it is necessary to provide a lifting structure for the water absorption rake, aiming at the technical problems that the water absorption rake in the prior art has low horizontal degree with the ground when adjusting the angle, and the quality of the vacuum environment is influenced, so that the cleaning effect is influenced. A lifting structure of a water absorption rake comprises a connecting arm, a lifting arm, a first rotating shaft and a second rotating shaft; the lower extreme and the water absorption of linking arm are taken off and are connected, the one end of lifting arm is connected in power structure, the other end of lifting arm with the upper end of linking arm is passed through first pivot with the second pivot is rotated and is connected: the first rotating shaft is positioned on the upper side of the second rotating shaft; one of the lifting arm and the connecting arm is provided with a sliding space extending along a first direction, and the end part of the first rotating shaft extends into the sliding space; the first direction is at an angle to the vertical; the first rotating shaft can move in the sliding space along a first direction, so that the connecting arm is opposite to the lifting arm and swings around the axis of the second rotating shaft, and the first rotating shaft can be locked at any position of the sliding space.

Foretell lifting structure is taken off in absorption is connected linking arm and lifting arm through first pivot and second pivot to realize absorbing to take off lifting structure and drive the lifting of taking off in absorption. During in-service use, first pivot removes in the slide space for the relative lifting arm of linking arm can be around the axis swing of second pivot, thereby adjusts the contained angle size of the relative lifting arm of linking arm. The connecting arm swings to drive the water absorption scratcher to swing so as to adjust the levelness of the water absorption scratcher relative to the ground. And after the target position is adjusted, the first rotating shaft is locked relative to the connecting arm. Moreover, the whole operation process is simple, and the angle adjustment can be realized only by enabling the first rotating shaft to move in the sliding space and enabling the connecting arm to be in a swing arm state in the moving process, so that the requirement of increasing the sealing performance between the water absorption rake and the ground is met.

In one embodiment, the water absorption rake lifting structure further comprises a connecting component connected to the first rotating shaft, and the connecting component is used for driving the first rotating shaft to move in the sliding space.

In one embodiment, the connecting assembly comprises a connecting column, and one end of the connecting column passes through the connecting arm to be connected to the first rotating shaft; the connecting column is opposite to the extending length of the connecting arm can be adjusted so as to drive the first rotating shaft to move in the sliding space.

In one embodiment, the connecting arm is configured with a threaded hole for the connecting column to pass through, the connecting column is configured with a threaded section in threaded connection with the threaded hole, and an end of the threaded section abuts against the first rotating shaft.

In one embodiment, a connecting cap is arranged at one end of the connecting column, which is far away from the first rotating shaft;

the connecting component further comprises an elastic piece sleeved on the connecting column, one end of the elastic piece is abutted to the connecting arm, and the other end of the elastic piece is abutted to the connecting cap.

In one embodiment, the sliding space is disposed at the top of the connecting arm, and the sliding space is in an arc-shaped structure along the length direction of the lifting arm.

In one embodiment, the connecting arm is provided with side plates which are arranged at intervals along the axial direction of the first rotating shaft, each side plate is provided with an arc-shaped hole, and two ends of the first rotating shaft respectively penetrate through the arc-shaped holes on the corresponding side to be connected with the lifting arm; the arc-shaped holes form the sliding space.

In one embodiment, the lifting arm comprises an upper arm and a lower arm which are arranged at intervals along the vertical direction; the upper arm comprises at least two first connecting rods which are arranged on two sides of the connecting arm and are positioned at the same height, and the first connecting rods are connected with the first rotating shaft; the lower arm comprises at least two second connecting rods which are arranged on two sides of the connecting arm and located at the same height, and the second connecting rods are connected with the second rotating shaft.

In one embodiment, a connecting plate is connected between each of the two first connecting rods and each of the two second connecting rods, and the first connecting rods and the second connecting rods are integrally formed with the corresponding connecting plates respectively.

In one embodiment, one end of the connecting arm, which is far away from the lifting arm, is provided with a fixing plate, the fixing plate is used for fixing with a pulling frame of the water absorption pulling tool, and the fixing plate is provided with an avoiding opening for avoiding an upper suction pipe of the water absorption pulling tool.

The present invention also provides a water absorption device which alleviates at least one of the above-mentioned technical problems.

The utility model provides a water absorption device, includes foretell water absorption and takes off lifting structure, still includes water absorption and takes off, water absorption take off lifting structure pass through the linking arm connect in water absorption takes off to be convenient for absorb water and take off the regulation of ground levelness relatively, in order to guarantee to absorb water and take off and ground between vacuum environment's the quality, improve the clean effect of removing ground waste water.

The present invention also provides a scrubber that alleviates at least one of the above-mentioned problems.

A floor washing machine comprises the water absorption device and a cleaning vehicle body, wherein the water absorption device is installed on the cleaning vehicle body. When the ground is cleaned, the levelness of the water absorption scratcher relative to the ground is convenient to adjust, and therefore the cleaning effect is improved.

Drawings

Fig. 1 is a schematic view of a lifting structure of a water absorption rake according to an embodiment of the present invention;

FIG. 2 is a top view of the suction rake lift structure provided in FIG. 1;

FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;

FIG. 4 is a first schematic view of a water absorbing device according to an embodiment of the present invention connected to a driving wheel;

FIG. 5 is a second schematic view of the embodiment of the present invention showing the water absorbing device connected to the driving wheel.

Reference numerals: 10-a linker arm; 11-side plates; 12-transverse edge; 20-a lifting arm; 21-lifting the linkage; 22-a connecting plate; 30-a first rotating shaft; 40-a second rotating shaft; 50-a connecting assembly; 51-a connecting column; 52-a connecting cap; 53-a resilient member; 60, fixing a plate; 61-avoidance port; 70-a fixed arm; 100-a water absorption rake lifting structure; 101-a cavity; 102-a threaded hole; 111-an arc-shaped hole; 200-water absorption rake; 201-connecting lugs; 210-raking frame; 211-a first link; 212-a second link; 220-a suction tube; 230-front adhesive tape; 240-rear adhesive tape; 250-an auxiliary wheel; 1000-water absorption device; 1001-sliding space; 2000-driving wheels; 2001-Water uptake cavity.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 and 4, a lifting structure 100 for a water absorbing rake according to an embodiment of the present invention includes a connecting arm 10, a lifting arm 20, a first rotating shaft 30, and a second rotating shaft 40. The lower end of the connecting arm 10 is connected with the body of the water absorption rake 200, one end of the lifting arm 20 is connected with the power structure, the other end of the lifting arm 20 is rotatably connected with the upper end of the connecting arm 10 through a first rotating shaft 30 and a second rotating shaft 40, and the first rotating shaft 30 is located on the upper side of the second rotating shaft 40. One of the lift arm 20 and the connecting arm 10 is provided with a sliding space 1001 extending in the first direction, and an end of the first rotating shaft 30 protrudes into the sliding space 1001. The first direction is at an angle to the vertical. The first rotating shaft 30 can move in the sliding space 1001 in the first direction to swing the connecting arm 10 relative to the lift arm 20 about the axis of the second rotating shaft 40, and the first rotating shaft 30 can be locked at any position of the sliding space 1001. The first direction is a horizontal transverse direction (which may be considered as a horizontal left-right direction), and the second direction is a horizontal longitudinal direction (which may be considered as a horizontal front-back direction).

Specifically, the lifting arm 20 and the connecting arm 10 are arranged at an angle, the connecting arm 10 is used for connecting the water absorption rake 200, and the lifting arm 20 can drive the water absorption rake 200 to be folded, stored and unfolded for use through the connecting arm 10. The first and second rotating shafts 30 and 40 are provided to mount the connecting arm 10 with respect to the lift arm 20, thereby improving the reliability of the connection therebetween. In actual use, the first pivot 30 is caused to move within the sliding space 1001 such that the connecting arm 10 moves relative to the point of attachment of the lift arm 20 at the first pivot 30. In this process, the position of the second rotating shaft 40 with respect to the connecting arm 10 and the lift arm 20 is not changed. Furthermore, the length spacing of the first shaft 30 relative to the lift arms 20 and the height spacing of the first shaft 30 relative to the connecting arms 10 are not varied. Therefore, when the first rotating shaft 30 moves, the connecting arm 10 swings around the axis of the second rotating shaft 40 relative to the lifting arm 20 under the reaction, and the adjustment of the included angle of the connecting arm 10 relative to the lifting arm 20 is realized. Moreover, the swing of the connecting arm 10 can drive the water absorption rake 200 to swing synchronously, so that the levelness of the water absorption rake 200 relative to the ground is adjusted. After the water absorption rake 200 is adjusted to the target position, the first rotating shaft 30 is locked relative to the connecting arm 10, that is, the first rotating shaft 30 does not move in the sliding space 1001, the connecting arm 10 does not need to swing around the axis of the second rotating shaft 40, and the water absorption rake 200 enters a normal use state. The whole operation process is simple, and only the first rotating shaft 30 needs to be driven to move in the sliding space 1001, so that the connecting arm 10 is in a passive swing arm state swinging around the axis of the second rotating shaft 40 in the moving process of the first rotating shaft 30. In the present embodiment, the sliding space 1001 is provided on the connection arm 10. In other embodiments, the sliding space 1001 is provided on the lift arm 20. It is sufficient if the connecting arm 10 can be brought into a passive swing arm state during adjustment.

It should be noted that the passive swing arm state here means that the swing is forced, that is, when the first rotating shaft 30 has a movement tendency of moving the sliding space 1001, the connecting arm 10 is forced to move in the opposite direction relative to the first rotating shaft 30, so as to realize the position change of the first rotating shaft 30 in the sliding space 1001. And the connecting arm 10 is forced to rotate a certain angle around the axis of the second rotating shaft 40 under the combined constraint of the axis of the first rotating shaft 30 and the length of the end of the lifting arm 20 for connecting the power structure, and the height of the rotating shaft of the first rotating shaft 30 and the top of the connecting arm 10.

It should be added that the first rotating shaft 30 is locked after being moved, and the locking can be realized by the connecting component 50, and can also be realized by other structures. It is sufficient that the first pivot shaft 30 is able to move under the action of the linkage assembly 50 and then lock against the link arm 10 to ensure that the link arm 10 is stable relative to the lift arm 20.

In some embodiments, the water scooping and lifting structure 100 further includes a connecting assembly 50 connected to the first rotating shaft 30, wherein the connecting assembly 50 is configured to move the first rotating shaft 30 in the sliding space 1001. Specifically, one end of the connecting member 50 is connected to the middle of the first rotating shaft 30 for acting on the first rotating shaft 30 and the connecting arm 10, thereby achieving the movement of the first rotating shaft 30 with respect to the sliding space 1001, that is, the movement of the connecting arm 10 with respect to the lift arm 20, and thus the angular adjustment.

The following description is made specifically for the structure of the connecting assembly 50, and for convenience of description, the sliding space 1001 is provided on the connecting arm 10 as an example.

As shown in fig. 1-3, in some embodiments, the coupling assembly 50 includes a coupling post 51, and one end of the coupling post 51 passes through the coupling arm 10 to be coupled to the first shaft 30. The extending length of the connecting rod 51 relative to the connecting arm 10 can be adjusted to drive the first rotating shaft 30 to move in the sliding space 1001.

Specifically, the connecting arm 10 has a cavity 101 for facilitating the movement of the first rotating shaft 30 and the connecting rod 51 relative to the connecting arm 10. Both ends of the first rotating shaft 30 are respectively connected with the corresponding sides of the connecting arm 10 and the lifting arm 20, and the connecting column 51 passes through the connecting arm 10 and is connected with the middle part of the first rotating shaft 30. When the length of the connecting post 51 inserted with respect to the connecting arm 10 increases, the connecting post 51 pushes the first rotating shaft 30 with a tendency to move towards the side facing away from the connecting post 51. At this time, since the first rotating shaft 30 is also connected to the lift arm 20, the connection distance therebetween is fixed. Thus, in the case of a reaction force, the connecting arm 10 is forced to rotate about the axis of the second rotating shaft 40 toward the side away from the lift arm 20. Also, when the length of the connecting post 51 inserted with respect to the connecting arm 10 is reduced, the connecting post 51 pulls the first rotating shaft 30 with a tendency to move toward the side of the connecting post 51. At this time, the link arm 10 rotates around the axis of the second rotating shaft 40 toward the side close to the lift arm 20 by a reaction force with the length of the lift arm 20 unchanged. In this way, the angle adjustment of the connecting arm 10 relative to the lifting arm 20, i.e. the adjustment of the levelness of the water absorbing rake 200 relative to the ground, can be achieved. After the connecting arm 10 is moved to the target position, the first rotating shaft 30 can be locked with respect to the connecting arm 10 by using the pin. Alternatively, the sliding space 1001 may be filled with another structure to limit the movement of the first shaft 30 in the sliding space 1001. As long as the position of the connecting arm 10 relative to the lift arm 20 is secured.

As shown in fig. 1-3, in some embodiments, the connecting arm 10 is configured with a threaded bore 102 for passage of the connecting stud 51, the connecting stud 51 is configured with a threaded section that is threadedly connected with the threaded bore 102, and an end of the threaded section abuts the first shaft 30. That is, the connecting post 51 is threadedly connected to the connecting arm 10. The adjustment of the extension length of the connecting column 51 relative to the connecting arm 10 can be realized by rotating the connecting column 51 around the axis of the connecting column 51. For example, the connecting rod 51 rotates counterclockwise to realize the rotation of the connecting rod 51 relative to the connecting arm 10, because the connecting rod 51 is always connected to the first rotating shaft 30, the connecting rod 51 has an inward pushing force on the connecting arm 10, and the connecting arm 10 is urged to move toward a side close to the first rotating shaft 30. The connecting column 51 rotates clockwise to realize the screwing of the connecting column 51 relative to the connecting arm 10, and at this time, the connecting column 51 has an outward pulling force on the connecting arm 10 to urge the connecting arm 10 to move towards the side away from the first rotating shaft 30. This arrangement further facilitates the movement of the first shaft 30 in the sliding space 1001 by the connecting assembly 50. Further, a return link such as a return spring may be installed between the first shaft 30 and the connection arm 10 so that the first shaft 30 can move in the sliding space 1001 by the action of the return spring when the connection post 51 is unscrewed from the connection arm 10. In other embodiments, a return spring may be disposed in the sliding space 1001 along the moving direction of the first rotating shaft 30.

As shown in fig. 1-3, in some embodiments, an end of the connecting post 51 facing away from the first shaft 30 is provided with a connecting cap 52. The connecting assembly 50 further includes an elastic member 53 sleeved on the connecting post 51, wherein one end of the elastic member 53 abuts against the connecting arm 10, and the other end abuts against the connecting cap 52.

In actual use, the connecting column 51 is screwed into the connecting arm 10, so that the distance between the connecting cap 52 and the connecting arm 10 is reduced, the elastic member 53 is compressed, and the elastic potential energy is increased. When the connecting column 51 is screwed out relative to the connecting arm 10, the distance between the connecting cap 52 and the connecting arm 10 is increased, the extrusion force applied to the elastic piece 53 is reduced, and the elastic potential energy is released, so that the connecting arm 10 is pushed to move towards one side departing from the connecting column 51, and when the angle of the connecting arm 10 relative to the lifting arm 20 is adjusted, the end part of the connecting column 51 is convenient to be always abutted to the first rotating shaft 30. Moreover, the elastic member 53 sleeved on the connecting column 51 always has a pushing force to the connecting arm 10 to move towards the side away from the connecting column 51, thereby achieving the purpose of preventing looseness. Meanwhile, the elastic piece 53 has a certain damping effect on the rotation of the connecting column 51, and the connection reliability of the connecting column 51 relative to the connecting arm 10 is improved. In addition, due to the arrangement of the elastic member 53, the end of the connecting rod 51 can be always abutted against the first rotating shaft 30, so that the connecting rod 51 can always have a fastening effect on the first rotating shaft 30, and therefore, the first rotating shaft 30 can be locked relative to the connecting rod 51. In this case, other parts are not required to lock the first rotating shaft 30, and the structure is simplified. In one embodiment, the connecting post 51 is a T-handle screw. In this case, the connecting cap 52 is a nut of the screw.

As shown in fig. 1 to 3, in some embodiments, the sliding space 1001 is provided at the top of the link arm 10, and the sliding space 1001 has an arc-shaped structure along the length direction of the lift arm 20. Specifically, the arrangement increases the force arm between the connecting arm 10 and the water absorption rake 200, so that the water absorption rake 200 is less stressed under the same torque, the water absorption rake 200 can be adjusted and moved more stably, and the use safety is improved. Meanwhile, the arc-shaped sliding space 1001 is more beneficial to the swinging of the connecting arm 10 relative to the lifting arm 20 around the second rotating shaft 40, and reduces the abrasion between the connecting arm 10 and the first rotating shaft 30 in the swinging process.

As shown in fig. 1 to 3, in a specific embodiment, the connecting arm 10 has side plates 11 spaced apart from each other in the axial direction of the first rotating shaft 30, each side plate 11 is provided with an arc-shaped hole 111, and both ends of the first rotating shaft 30 are connected to the lift arm 20 through the corresponding arc-shaped holes 111. The arc-shaped hole 111 forms a sliding space 1001.

Specifically, the connecting arm 10 has a U-shaped horizontal cross-section with the opening of the U-shape facing the lifting arm 20 and the transverse side 12 of the U-shape facing the connecting post 51 to facilitate the installation of the threaded hole 102. The two sides of the U-shape form the side plates 11 mentioned above. Each side plate 11 is provided with an arc-shaped hole 111 extending in an arc shape along the axis of the second rotating shaft 40, and the arc-shaped hole 111 penetrates through the side plate 11 in the thickness direction. The two ends of the first rotating shaft 30 can respectively penetrate through the corresponding arc-shaped holes 111, and the side wall of the first rotating shaft 30 is in contact with the upper and lower hole walls of the arc-shaped holes 111, so that the movement guiding effect is achieved. The provision of the arcuate aperture 111 further facilitates the swinging of the connecting arm 10 about the axis of the second shaft 40. In a further embodiment, the two engaging lugs 201 of the lifting arm 20 for engaging with the connecting arm 10 are respectively located at the outer sides of the side plates 11 on the corresponding sides of the connecting arm 10. At this time, the first rotating shaft 30 and the second rotating shaft 40 are connected to the connecting lug 201 of the lifting arm 20 after passing through the side plate 11. The first rotating shaft 30 is fixedly connected with the connecting lug 201, the second rotating shaft 40 is also fixedly connected with the connecting lug 201, and the second rotating shaft 40 is rotatably connected with the side plate 11, so that the connecting arm 10 can rotate relative to the lifting arm 20. In other embodiments, the sliding space 1001 may be an arc-shaped slot provided on the connecting arm 10. At this time, the engaging lug 201 of the lift arm 20 for connecting with the connecting arm 10 extends into the cavity 101 of the connecting arm 10.

As shown in fig. 1 to 5, in some embodiments, an end of the connecting arm 10 facing away from the lifting arm 20 is provided with a fixing plate 60, the fixing plate 60 is used for connecting with a rake frame 210 of the picking-up device 200, and the fixing plate 60 is provided with an avoiding opening 61 for avoiding a suction pipe 220 on the picking-up device 200.

Specifically, the fixing plate 60 is vertically disposed relative to the connecting arm 10 so as to be fixed to the rake 210 by a fastener of a screw, thereby realizing the installation of the suction rake 200 relative to the connecting arm 10. The fixing plate 60 is installed in the middle of the raking frame 210 to ensure the stress balance. The suction rake 200 has a suction pipe 220 for sucking accumulated water on the ground, and the suction pipe 220 is also connected to the middle of the rake 210. At this time, the escape opening 61 of the fixing plate 60 is provided to just escape the suction duct 220 so that interference between the fixing plate 60 and the suction duct 220 does not occur. In actual use, the suction pipe 220 is arranged to communicate with the suction cavity 2001 of the suction rake 200, so that when a vacuum environment is formed between the suction rake 200 and the ground, waste water in the vacuum environment can be sucked into the waste water recycling tank along the suction pipe 220 by using the negative pressure state, and therefore the ground waste water is cleaned. Wherein, a sealing gasket is arranged between the suction pipe 220 and the raking frame 210 to ensure the sealing connection between the suction pipe and the raking frame and prevent air leakage when negative pressure is formed. In one particular embodiment, the suction tube 220 is a reducer tube. Specifically, the diameter of the suction pipe 220 gradually increases from the end connected to the raking frame 210 toward the end connected to the wastewater collection tank.

As shown in fig. 4 and 5, in a further specific embodiment, the picking up device 200 further includes a front adhesive tape 230 and a rear adhesive tape 240 connected to the picking frame 210, the front adhesive tape 230 and the rear adhesive tape 240 are respectively connected to two sides of the picking frame 210 in the width direction, and are connected to two ends of the picking frame 210 in the length extending direction, and the front adhesive tape 230 is connected to the rear adhesive tape 240 to form a closed opening. At this time, when the suction tower 200 acts on the ground, the front rubber strip 230 and the rear rubber strip 240 are pressed tightly against the ground, so that a vacuum environment is formed between the suction tower 200 and the ground. Meanwhile, the raking frame 210 is further connected with two arc-shaped elastic pieces, and the two arc-shaped elastic pieces are respectively connected to two sides of the raking frame 210 in the width direction and respectively correspond to the front adhesive tape 230 and the rear adhesive tape 240. In fact, it should be noted that the specific structural composition of the water absorption scrabbler 200 is the existing mature technology, and does not belong to the improvement point of the present application, and thus is not described in detail. In some embodiments, the suction rake 200 further has an auxiliary wheel 250 mounted thereon, and a wheel frame of the auxiliary wheel 250 is connected to the rake 210. The number of the auxiliary wheels 250 is two, and the two auxiliary wheels 250 are arranged at intervals along the length extending direction of the water absorption rake 200.

In some embodiments, a ball washer is disposed between the fixing plate 60 and the raking frame 210. The upper surface of the raking frame 210 is recessed downward to form a recessed spherical surface, the spherical washer has a downwardly convex spherical convex surface, and one side of the spherical washer facing the fixing plate 60 is a plane. Thereby, the rack 210 and the spherical washer are in spherical contact, and the fixing plate 60 and the spherical washer are in planar contact. Meanwhile, an adjusting column is also included and is screwed to the raking frame 210 through the spherical washer, so that the raking frame 210 is conveniently connected with the fixing plate 60. And, still include one and pass the fixed plate 60 and abut against the locking post of taking off the frame 210, the cover is equipped with the spring on the locking post, the spring abuts between the cap of locking post and fixed plate 60, the locking post is screwed with fixed plate 60 screw thread. When the locking post is rotated out relative to the fixing plate 60, the resisting force acting on the raking frame 210 is reduced, and the raking frame 210 can rotate around the adjusting post relative to the fixing plate 60 by using the spherical washer, so as to adjust the angle between the raking frame 210 and the fixing plate 60. After the angle of the water absorbing rake 200 is adjusted to the target angle, the locking column is screwed into the fixing plate 60 to tighten the fixing plate 60 relative to the rake frame 210, so as to adjust the angle of the water absorbing rake 200 relative to the ground.

As shown in fig. 1, in some embodiments, the lift arm 20 has lift linkages 21 distributed on both sides of the lift arm in the width direction, and each lift linkage 21 has a first link 211 and a second link 212 spaced apart from each other in the vertical direction. The first connecting rod 211 is correspondingly connected with the first rotating shaft 30, and the second connecting rod 212 is correspondingly connected with the second rotating shaft 40. It can also be said that the two first links 211 distributed on both sides of the connecting arm 10 in the width direction (the second direction) jointly form the upper arm of the lifting arm 20, and the two first links 211 have the same length and are located at the same height. The second connecting rods 212 are located below the first connecting rods 211, two second connecting rods 212 distributed on both sides of the connecting arm 10 in the width direction jointly form a lower arm of the lifting arm 20, and the two second connecting rods 212 have the same length and are located at the same height. The first link 211 is connected to the first rotating shaft 30 at an end facing the connecting arm 10, and the second link 212 is connected to the second rotating shaft 40 at an end facing the connecting arm 10. In a specific embodiment, the connection plates 22 are respectively disposed between the two first links 211 and the two second links 212, thereby improving the structural strength of lifting the two first links 211 and the structural strength of the two second links 212. The connecting lug 201 is formed by the parts of the first connecting rod 211 and the second connecting rod 212 which extend into the connecting plate 22 along the length direction. The first connecting rod 211 and the second connecting rod 212 may also be formed by bending the side edge of the connecting plate 22. The first connecting rods 211 and the corresponding connecting plates 22 are integrally formed, and the two sides of the connecting plates 22 along the width direction may be bent downwards to form the first connecting rods 211. The second connecting rods 212 are integrally formed with the corresponding connecting plates 22, and the two sides of the connecting plates 22 in the width direction may be bent upwards to form the second connecting rods 212.

As shown in fig. 1-3, in some embodiments, the tow lifting structure 100 further includes a fixed arm 70, the fixed arm 70 is connected to an end of the lifting arm 20 facing away from the connecting arm 10, and the fixed arm 70 is used to connect to a power mechanism. Specifically, the securing arm 70 is an inverted L-shaped structure. The transverse edge 12 of the L-shaped fixing arm 70 is fixed with the wheel carrier through a locking pin, and the vertical edge of the L-shaped fixing arm 70 is hinged with the lifting arm 20, so that the lifting arm 20 swings relative to the fixing arm 70 under the action of power, and the water absorption rake 200 is driven to move through the connecting arm 10. In fact, the lifting arm 20 is arranged to have a certain safety space between the connecting arm 10 and the fixing arm 70, which is equivalent to having enough safety adapting space between the water absorbing rake 200 and the driving wheel 2000 to facilitate the ground water removing work of the water absorbing rake 200. In actual use, the central control system in the floor washing machine can control the related power structure to drive the lifting arm 20 to rotate relative to the fixed arm 70, so as to drive the water absorption rake 200 to swing through the connecting arm 10, thereby realizing the storage and the expansion of the water absorption rake 200. It should be noted that, the power structure herein refers to a structure capable of driving the water absorbing rake lifting structure 100 to move so as to drive the water absorbing rake 200 to lift. The power structure is arranged on the cleaning vehicle body. Generally, a part of the power mechanism may be mounted on a wheel frame of the driving wheel 2000 on the cleaning vehicle body.

As shown in fig. 4 and fig. 5, an embodiment of the present invention further provides a water absorption apparatus 1000, which includes the water absorption rake lifting structure 100, and further includes a water absorption rake 200, where the water absorption rake lifting structure 100 is connected to the water absorption rake 200 through a connecting arm 10. When realizing that the water absorption rake 200 is accommodated and unfolded through the water absorption rake lifting structure 100, the water absorption rake 200 can be adjusted relative to the ground levelness by utilizing the matching of the connecting component 50, the first rotating shaft 30, the second rotating shaft 40 and the sliding space 1001, so that the quality of a vacuum environment between the water absorption rake 200 and the ground is ensured, and the cleaning effect of absorbing the ground wastewater is improved. The structure of the blotting unit 200 is described above, and will not be described herein.

As shown in fig. 4 and 5, another embodiment of the present invention further provides a floor washing machine, which includes the above water absorption device 1000, and further includes a cleaning vehicle body, wherein the water absorption device 1000 is mounted on the cleaning vehicle body and is connected to the wheel carrier of the driving wheel 2000 on the cleaning vehicle body. Through set up water absorption device 1000 on clean automobile body to water absorption device 1000 can be along with the relative ground in-process of traveling of clean automobile body, forms a vacuum environment between water absorption rake 200 and the ground, utilizes the negative pressure state of applying in the vacuum environment, inhales the last waste water on ground to waste water recovery box in from suction tube 220, realizes the cleanness of ground waste water.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (11)

1. The water absorption rake lifting structure is characterized by comprising a connecting arm (10), a lifting arm (20), a first rotating shaft (30) and a second rotating shaft (40), wherein the lifting arm (20) and the connecting arm (10) are arranged at an angle;

the lower extreme and the take off that absorbs water (200) of linking arm (10) are connected, the one end of lifting arm (20) is connected in power structure, the other end of lifting arm (20) with the upper end of linking arm (10) is passed through first pivot (30) with second pivot (40) rotate and connect: the first rotating shaft (30) is positioned on the upper side of the second rotating shaft (40);

the connecting arm (10) is provided with a sliding space (1001) extending along a first direction, the sliding space (1001) is of an arc-shaped structure along the length direction of the lifting arm (20), and the end part of the first rotating shaft (30) extends into the sliding space (1001); the first direction is at an angle to the vertical;

the first rotating shaft (30) can move in the sliding space (1001) along a first direction, so that the connecting arm (10) can swing around the axis of the second rotating shaft (40) relative to the lifting arm (20), and the first rotating shaft (30) can be locked at any position of the sliding space (1001).

2. The tow lifting structure according to claim 1, wherein the tow lifting structure (100) further comprises a connecting assembly (50) connected to the first shaft (30), the connecting assembly (50) being configured to move the first shaft (30) within the sliding space (1001).

3. The tow lifting structure according to claim 2, wherein the connection assembly (50) comprises a connection post (51), one end of the connection post (51) being connected to the first rotation shaft (30) through the connection arm (10); the extension length of the connecting column (51) relative to the connecting arm (10) can be adjusted to drive the first rotating shaft (30) to move in the sliding space (1001).

4. The structure for lifting a water-absorbing rake according to claim 3, characterized in that the connecting arm (10) is configured with a threaded hole (102) for the connecting stud (51) to pass through, the connecting stud (51) is configured with a threaded section which is in threaded connection with the threaded hole (102), and the end of the threaded section abuts against the first rotating shaft (30).

5. The structure of claim 4, wherein the connecting column (51) is provided with a connecting cap (52) at an end facing away from the first rotating shaft (30);

the connecting component (50) further comprises an elastic piece (53) sleeved on the connecting column (51), one end of the elastic piece (53) abuts against the connecting arm (10), and the other end of the elastic piece (53) abuts against the connecting cap (52).

6. The structure for lifting a water-absorbing rake according to claim 1, wherein the connecting arm (10) has side plates (11) arranged at intervals along the axial direction of the first rotating shaft (30), each side plate (11) is provided with an arc-shaped hole (111), and two ends of the first rotating shaft (30) are respectively connected with the lifting arm (20) through the arc-shaped holes (111) on the corresponding sides; the arc-shaped hole (111) forms the sliding space (1001).

7. The suction rake lifting structure according to any one of claims 1 to 6, wherein the lifting arm (20) comprises an upper arm and a lower arm, which are spaced apart in a vertical direction;

the upper arm comprises two first connecting rods (211) which are arranged at two sides of the connecting arm (10) and are positioned at the same height, and the first connecting rods (211) are connected with the first rotating shaft (30);

the lower arm comprises two second connecting rods (212) which are arranged on two sides of the connecting arm (10) and located at the same height, and the second connecting rods (212) are connected with the second rotating shaft (40).

8. The structure for lifting a water absorption rake according to claim 7, wherein a connecting plate (22) is connected between each of the two first connecting rods (211) and each of the two second connecting rods (212), and the first connecting rods (211) and the second connecting rods (212) are respectively formed integrally with the corresponding connecting plates (22).

9. The lifting structure of the water absorption rake according to claim 7, wherein a fixing plate (60) is arranged at one end of the connecting arm (10) away from the lifting arm (20), the fixing plate (60) is used for being fixed with a rake frame (210) of the water absorption rake (200), and the fixing plate (60) is provided with an avoiding opening (61) used for avoiding a suction pipe (220) on the water absorption rake (200).

10. A water absorbing device, comprising the water absorbing rake lifting structure according to any one of claims 1 to 9, and further comprising a water absorbing rake (200), wherein the water absorbing rake lifting structure (100) is connected to the water absorbing rake (200) through the connecting arm (10).

11. A floor washing machine, characterized in that it comprises a water suction device according to claim 10, and further comprises a cleaning vehicle body, to which the water suction device (1000) is mounted.

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