CN117297398A - Floor sweeping machine - Google Patents

Abstract

The utility model relates to a sweeper, which comprises: a body; a driving wheel assembly disposed in a front-rear direction; the separating mechanism is arranged on the machine body and comprises a shell and a separating piece, a cavity is formed in the shell, an air outlet is formed in the cavity, and the separating piece is positioned in the cavity; the separating piece is positioned below the air outlet, the power input end of the linkage assembly is in driving connection with the driving wheel assembly, and the power output end of the linkage assembly is in driving connection with the separating piece and is used for enabling at least part of the separating piece to move upwards to be in a state of closing the air outlet when the second side of the driving wheel assembly is in a downward movement state; alternatively, in the state in which the second side of the driving wheel assembly is in the upward movement, at least part of the separating member is moved downward to be in a state in which the air outlet is opened. When the sweeper is lifted or toppled, the separating piece moves upwards to block the air passage, so that the service life of the fan is prevented from being influenced by the fact that sewage and garbage in the cavity flow out through the air passage and then contact with the fan through the air outlet.

Description

Floor sweeping machine

Technical Field

The utility model belongs to the field of household washing and cleaning, and particularly relates to a sweeper.

Background

The floor sweeper sucks the mixture of dust and the like mixed with water vapor on the floor into the inner cavity of the floor sweeper, and in order to separate the mixture of dust particles and water vapor, a separating device is generally adopted in the floor sweeper at present.

The prior floor sweeping machine, such as a vortex filtration separation system, a floor sweeping robot and equipment, is disclosed in Chinese patent application No. ZL201921208546.0 (issued to the public No. CN 210612041U), and comprises a filtration structure with a vortex channel cavity, a dust box structure embedded with the filtration structure, a gauze bracket for connecting the filtration structure and the dust box structure, and a HEPA bracket arranged on the dust box structure; the dust box structure is provided with a mounting cavity, a dust cavity communicated with the mounting cavity, an air inlet communicated with the mounting cavity and an air outlet communicated with the dust cavity; the gauze support is provided with gauze, and the HEPA support is provided with HEPA; the filtering structure is arranged in the installation cavity, and the vortex channel cavity comprises a starting end, a tail end and a plurality of outlets positioned between the starting end and the tail end; the starting end of the vortex channel cavity is connected with the air inlet, the outlet of the vortex channel cavity is connected with the dust cavity through the gauze support, and the tail end of the vortex channel cavity is connected with the dust cavity. The separation module realizes the separation of water and dust particles, but when a user lifts the sweeper from the ground or the sweeper falls down, water in the separation cavity (cavity) flows into the fan, so that the motor in the fan is in failure.

Therefore, there is a need for further improvements to existing floor sweepers.

Disclosure of Invention

The first technical problem to be solved by the present utility model is to provide a sweeper capable of preventing water in a cavity from entering a fan when the sweeper is lifted or toppled over.

The second technical problem to be solved by the utility model is to provide the floor sweeper capable of preventing water in the cavity from flowing out to the ground through the cleaning module when the floor sweeper is lifted or toppled over.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a sweeper, comprising:

a body;

the driving wheel assembly is used for driving the machine body to walk forwards, is arranged along the front-rear direction, and is rotatably arranged on the machine body on the first side of the front side and the rear side of the driving wheel assembly so that the second side of the driving wheel assembly swings up and down relative to the machine body, the second side of the driving wheel assembly is in an upward movement state during the period that the bottom of the driving wheel assembly is completely contacted with the ground, and the second side of the driving wheel assembly is in a downward movement state during the period that the bottom of the driving wheel assembly is separated from the ground contact under the action of external force;

the separating mechanism is arranged on the machine body and comprises a shell and a separating piece at least used for separating dust and liquid, a cavity is arranged in the shell, the cavity is provided with an air outlet used for being in fluid communication with a fan of the sweeper, and the separating piece is positioned in the cavity;

the floor sweeper is characterized in that the separating piece is positioned below the air outlet, and the floor sweeper further comprises:

the power input end of the linkage assembly is in driving connection with the driving wheel assembly, and the power output end of the linkage assembly is in driving connection with the separating piece and is used for enabling at least part of the separating piece to move upwards to be in a state of closing the air outlet when the second side of the driving wheel assembly is in a downward movement state; alternatively, in the state that the second side of the driving wheel assembly is in the upward movement, the separating member is at least partially moved downward to be in a state of opening the air outlet.

The separating member may be in the form of a separating plate and a baffle plate moving relative to the separating plate, or may be in the form of a partially deformable separating plate, the partially deformable portion being a portion for opening or closing the air outlet, but preferably the separating member includes a separating plate relatively fixed to the housing and a baffle plate capable of moving in an up-down direction to open or close the air outlet, the baffle plate being located above the separating plate and being drivingly connected to the power output end of the linkage assembly. Therefore, under the action of the linkage assembly, the baffle moves upwards to close the air outlet, and the air outlet is opened when the baffle moves downwards.

In order to reliably realize the closing of the air outlet after the sweeper is toppled, the sweeper also comprises a first elastic piece which acts on the baffle plate and enables the baffle plate to move upwards all the time under the energy storage state so as to close the air outlet.

The linkage assembly has various structural forms, and can adopt a first connecting rod connected with the second side of the driving wheel assembly, a second connecting rod connected with the baffle plate and a linkage piece with opposite movement directions in the up-down direction, wherein the linkage piece can adopt a gear or a pull rope, but preferably, the upper surface of the baffle plate is provided with a convex part extending upwards, and the linkage assembly comprises:

a rotating lever having a V-shape and located on a peripheral side of the convex portion, a corner thereof being arranged to rotate relative to the housing, a first end thereof being arranged to be movable up and down; the convex part is provided with an inclined surface which gradually inclines towards the direction of the rotating rod from top to bottom at one side towards the rotating rod;

the power input end of the transmission assembly is in driving connection with the driving wheel assembly, and the power output end of the transmission assembly can be in driving connection with the first end of the rotating rod, so that at least the first end of the rotating rod is driven to move upwards;

a movable lever extending in an arrangement direction of the rotating lever and the protruding portion, one end of which is in contact with the second end of the rotating lever and moves in a direction away from the first end of the rotating lever by being pushed by the rotating lever, and the other end of which has a pushing surface on a side facing the protruding portion, which is in agreement with an inclination direction of the inclined surface and can be in contact with the inclined surface; and

The second elastic piece acts on the movable rod and enables the movable rod to always have a trend of moving towards the first end direction of the rotating rod.

In order to realize the protection to the drive wheel subassembly, the organism is including drain pan and first housing, the drain pan has seted up first through-hole on the position that corresponds the drive wheel subassembly, first housing cover on the drain pan and correspond on the position of first through-hole, and with enclose between the drain pan and close and be formed with the accommodation drive wheel subassembly the space.

The transmission assembly may have various structural forms, but preferably, the transmission assembly includes a moving member rotatably provided on the first housing and synchronously moving up and down along with the second side of the driving wheel assembly, and a pushing member upwardly moving along with the moving member, the moving member being partially positioned under the first end of the rotating lever, and the pushing member being positioned between the moving member and the first end of the rotating lever. In addition, the transmission assembly can also adopt a push rod which is fixedly connected with the second side of the driving wheel assembly, and the push rod extends vertically.

Preferably, the moving member is triangular in overall shape and vertically arranged, the moving member rotates relative to the first housing adjacent to a first side angle of the driving wheel assembly and is coaxially arranged with the driving wheel assembly, a driving part for pushing a second corner of the moving member is arranged on the driving wheel assembly, and a third corner of the moving member is located below the first end of the rotating rod.

The utility model solves the second technical problem by adopting the technical proposal that: the housing is provided with an air inlet channel communicated with the cavity and the cleaning module of the sweeper, the air inlet channel is provided with a wind shield which can rotate relative to the air inlet channel and is used for opening or blocking the air inlet channel, and the wind shield is provided with a first state of opening the air inlet channel when the bottom of the sweeper is placed on the ground to be cleaned and a second state of blocking the air inlet channel when the bottom of the sweeper is at least partially separated from contact with the ground to be cleaned.

The wind shield can be rotated in various modes, such as a mode that a motor can be adopted to directly drive the wind shield to rotate, a mode that a driving wheel assembly is adopted to drive the wind shield, and other modes can also be adopted, but preferably, the driving wheel assembly is a first driving wheel assembly, the floor sweeping machine further comprises a second driving wheel assembly used for driving the machine body to walk forwards and a transmission mechanism used for driving the wind shield to rotate and then open or close the air inlet channel, the first driving wheel assembly and the second driving wheel assembly are arranged at intervals along the left and right directions, a first side of the front side and the rear side of the second driving wheel assembly can be rotatably arranged on the machine body, a second side of the front side and the rear side of the second driving wheel assembly is arranged to be capable of moving up and down relative to the machine body, and a power input end of the second driving wheel assembly is in driving connection with the transmission mechanism, so that the wind shield is driven to rotate to a first state of opening the air inlet channel when the second side of the second driving wheel assembly contacts with the ground and is in an upward movement state, and the second side of the second driving wheel assembly is separated from the ground to rotate to a second state of closing the air inlet channel when the second side of the wind shield is driven to rotate to a second state when the second side of the wind shield is in a downward movement state.

Preferably, the wind shield is installed in the air inlet channel through a rotating shaft, the rotating shaft is at least partially located outside the air inlet channel and is arranged adjacent to the transmission mechanism, and the part of the rotating shaft located outside the air inlet channel is in driving connection with the transmission mechanism.

In order to realize the protection to the second driving wheel assembly, the machine body comprises a bottom shell and a second housing, wherein a second through hole is formed in the bottom shell at a position corresponding to the driving wheel assembly, the second housing covers the bottom shell and corresponds to the position of the second through hole, and a space for accommodating the second driving wheel assembly is formed between the second housing and the bottom shell in a surrounding manner.

The transmission mechanism has various structural forms, can adopt a form that a vertical rod is matched with a cross rod, is vertically arranged, the upper end of the vertical rod is positioned on the second housing, and the lower end of the vertical rod is connected with the top surface of the driving wheel assembly and moves up and down under the driving of the driving wheel assembly; the cross rod is positioned above the second housing and is arranged along the length direction of the rotating shaft, the cross rod is rotationally arranged on the upper surface of the second housing adjacent to the middle position, the first end of the cross rod is rotationally connected with the upper end of the vertical rod, and the second end of the cross rod can act on the position of the extension rod adjacent to the free end and drive the second end of the extension rod to move up and down so as to rotate the rotating shaft; it is also possible to use: the outer side wall of the rotating shaft is provided with an extension rod which extends laterally and is positioned outside the air inlet channel, the transmission mechanism comprises a movable part which is rotatably arranged on the second housing and moves up and down synchronously along with the second side of the driving wheel assembly and a push rod which can move up along with the movable part, the movable part is positioned below the extension rod partially, the push rod is positioned between the movable part and the extension rod, and the transmission mechanism further comprises a third elastic part which acts on the extension rod and enables the extension rod to have a downward movement trend under an energy storage state.

In order to improve the separation capacity, the surface where the air outlet is located is transversely arranged, a vertically extending annular piece is arranged in the cavity, the annular wall of the annular piece is wound around the periphery of the air outlet to form a flow channel communicated with the air outlet, and the separation piece is located in the flow channel of the annular piece and is in clearance with the inner peripheral wall of the annular piece for air supply to pass through.

In order to improve the separation capability by changing the fluid flow direction to increase the number of collisions, the projection of the separation plate onto the surface of the exhaust port along the fluid flow direction in the exhaust port covers the exhaust port. Therefore, the separation plate and the annular piece realize the baffling separation of the air flow, so that large particles or garbage with heavy volume subsides at the bottom of the chamber, and a filter screen is usually arranged between the air outlet and the fan along the fluid flow path, so that the filtering of the subsequent filter screen is reduced, and the service life of the filter screen is prolonged.

Preferably, the bottom of the annular member is provided with an air outlet opposite to the air outlet, the air outlet is positioned below the air outlet, the air outlet is positioned at the upstream of the air outlet along the fluid flow path, and the air outlet is covered by the separation plate along the projection of the flow direction of the fluid in the air outlet on the surface of the air outlet. Thus, the fluid flowing in through the air port is blocked after passing through the separating piece, and the separation of dust and liquid is realized.

In order to reduce the water flow in the cavity from entering the exhaust channel when the sweeper is toppled over, the inner peripheral wall of the annular piece is provided with an extending plate which extends vertically, the separating plate is arranged on the extending plate, and the gap is formed among the separating plate, the extending plate and the annular piece.

In order to further improve the separation capability, the top surface of the extension plate is contacted with the bottom surface of the wall plate where the air outlet is located, and the bottom surface of the extension plate is contacted with the bottom surface of the annular piece. Reducing the flow of water sputtered onto the top surface of the chamber.

The annular member has various structural forms, can adopt a vertical form, can also adopt a form of a contraction section completely, can also adopt a form of cooperation of the contraction section and the vertical section, but preferably, the annular wall of the annular member comprises a first contraction section gradually contracting inwards from top to bottom, and the extension plate is at least partially positioned on the inner wall of the first contraction section. So, the wind speed that gets into in the first shrink section is more and more little, and the rubbish sewage that conveniently sucks in the ring spare can rely on gravity to fall down again by oneself even when shut down in the cleaning process to under this state, clearance between separator plate and the ring spare inner wall narrows along fluid flow path gradually and leads to the air current velocity of flow too big, and the air current is more easy upward flow.

Compared with the prior art, the utility model has the advantages that: the separating piece in the separating module for the sweeper is driven by the driving wheel assembly to open or block the air outlet, namely, during the period that the driving wheel assembly of the sweeper contacts the ground, the air outlet is driven to move downwards at least to be in an open state, and when the sweeper operates normally, the separated air flow is discharged; under the ground-leaving state that the sweeper is lifted or toppled to enable the driving wheel assembly to be in non-contact with the ground, the second side of the driving wheel assembly moves downwards to drive the separating piece to move upwards to block the air passage, and the service life of the fan is prevented from being influenced by the fact that sewage and garbage in the cavity flow out through the air passage and then contact with the fan through the air outlet.

Drawings

Fig. 1 is a schematic structural view of a sweeper according to the present embodiment;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a cross-sectional view of the sweeper of FIG. 1 in contact with the floor surface to be cleaned;

FIG. 4 is another angular cross-sectional view of a portion of the structure of FIG. 1;

FIG. 5 is a schematic view of a part of the floor sweeper in a ground-off state in FIG. 2;

FIG. 6 is a cross-sectional view of FIG. 5;

fig. 7 is another angular cross-sectional view of fig. 5.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 7, the floor sweeper of the present embodiment comprises an organism 1, a driving wheel assembly, a transmission mechanism 7, a second driving wheel assembly 9, a first elastic member, a third elastic member, a separating mechanism 02, a blower, a filter member, a linkage assembly 4 and a cleaning module for cleaning the floor to be cleaned. Along the airflow path, the separation mechanism 02 is located between the cleaning module and the fan, the cleaning module being located upstream of the separation module. The air inlet channel of the separation module is communicated with the cleaning module, and the outlet of the separation module is communicated with the inlet of the fan after passing through the filter element. Under the action of the fan, negative pressure is formed in the cleaning module and the separating module, so that dust, water, particles and other garbage are sucked into the cleaning module through a dust suction opening of the cleaning module, then the gas separated by the separating module is discharged, and separated sewage is stored in a cavity of the separating module.

The driving wheel assemblies are first driving wheel assemblies 8, the first driving wheel assemblies 8 and the second driving wheel assemblies 9 are arranged on the machine body 6 at intervals along the left-right direction and used for driving the machine body 6 to walk forwards, and specifically, the first driving wheel assemblies 8 are positioned on the left side of the second driving wheel assemblies 9.

In order to protect the driving wheel assembly, the machine body 1 includes a bottom shell 11, a top cover 14, a first housing 12 and a second housing 13, the bottom shell 11 is provided with a first through hole 111 at a position corresponding to the first driving wheel assembly 8, a second through hole 112 at a position corresponding to the second driving wheel assembly 9, the first housing 12 covers the bottom shell 11 and corresponds to the through hole 111, and a space for accommodating the first driving wheel assembly is formed between the bottom shell 11 and the first housing 12; the second housing 13 covers the bottom shell 11 and corresponds to the second through hole 111, and a space for accommodating the second driving wheel assembly is formed between the second housing and the bottom shell 11. The top cover 14 covers the bottom shell 11, and the first cover 12 and the third cover 13 are both located in a space enclosed by the top cover 14 and the bottom shell 11. The specific structures of the first driving wheel assembly 8, the second driving wheel assembly 9 and the cleaning module in this embodiment adopt structures in the prior art, and will not be described in detail in this embodiment. The first driving wheel assembly 8 and the second driving wheel assembly 9 are each arranged in the front-rear direction, wherein a first side of the front-rear sides of the first driving wheel assembly 8 is rotatably provided on the machine body 1 so that a second side of the first driving wheel assembly 8 swings up and down with respect to the machine body. During the time when the bottom of the first driving wheel assembly 8 is fully in contact with the ground, the second side of the first driving wheel assembly 8 is in an upward movement, and during the time when the bottom of the first driving wheel assembly 8 is out of contact with the ground under the action of an external force, the second side of the first driving wheel assembly 8 is in a downward movement; a first one of the front and rear sides of the second driving wheel assembly 9 is rotatably provided on the machine body 1 so that a second side of the second driving wheel assembly 9 swings up and down with respect to the machine body. During the time when the bottom of the second driving wheel assembly 9 is fully in contact with the ground, the second side of the front and rear sides of the second driving wheel assembly 9 is in an upward movement, and during the time when the bottom of the second driving wheel assembly 9 is out of contact with the ground by an external force, the second side of the second driving wheel assembly 9 is in a downward movement. In this embodiment, the first side is the front side, the second side is the rear side, and in addition, a case where the first side is the rear side and the second side is the front side may be adopted. The manner of implementing the up-and-down swinging of the first driving wheel assembly and the second driving wheel assembly adopts the structure of the prior art, and detailed description thereof will not be repeated in this embodiment.

The separating mechanism 02 is relatively fixed on the machine body 1, and comprises a shell 2 and a separating piece 3 at least used for separating dust and liquid, wherein a cavity 20 is arranged in the shell 2, the cavity 20 is provided with an air outlet 201, the surface of the air outlet 201 is transversely arranged, and as shown in fig. 3, an air outlet channel 24 communicated with the air outlet 201 is arranged above the air outlet 201 in the shell 2. The separating piece 3 is positioned in the chamber 20 and below the air outlet 201; specifically, in order to improve the separation capability, an annular member 23 extending vertically is disposed in the chamber 20, as shown in fig. 6, the annular wall of the annular member 23 includes a first shrinkage section 231 that gradually shrinks inwards from top to bottom, and a vertical section 232 connected to the top edge of the first shrinkage section 231, the annular wall of the annular member 23 surrounds the periphery of the air outlet 201 to form a flow channel communicating with the air outlet 201, and the separation member 3 is located in the flow channel of the annular member 23, and a gap through which air flows is left between the annular member and the inner peripheral wall of the annular member 23. So, the wind speed that gets into in the first shrink section is more and more little, and the rubbish sewage that conveniently sucks in the ring spare can rely on gravity to fall down again by oneself even when shut down in the cleaning process to under this state, clearance between separator plate and the ring spare inner wall narrows along fluid flow path gradually and leads to the air current velocity of flow too big, and the air current is more easy upward flow.

In order to improve the separation capability by changing the fluid flow direction to increase the number of collisions, the projection of the separation plate 31 onto the surface of the air outlet 201 along the fluid flow direction in the air outlet 201 covers the air outlet 201. Therefore, the separation plate and the annular piece realize the baffling separation of the air flow, so that large particles or garbage with heavy volume subsides at the bottom of the chamber, and a filter screen is usually arranged between the air outlet and the fan along the fluid flow path, so that the filtering of the subsequent filter screen is reduced, and the service life of the filter screen is prolonged. The bottom of the ring member 23 is open to the air outlet 230 opposite to the air outlet 201, the air outlet 230 is located below the air outlet 201, and the air outlet 230 is located upstream of the air outlet 201 along the fluid flow path.

As shown in fig. 3, the separating member 3 in this embodiment includes a separating plate 31 fixed relative to the housing 2 and a shutter 32 capable of moving in the up-down direction to open or close the air outlet 201, the shutter 32 being located above the separating plate 31, and the separating member may also take the form of a partially deformable separating plate, the partially deformable portion serving as a portion for opening or closing the air outlet. The first elastic member acts on the baffle 32, and is a first spring 33 which keeps the baffle 32 moving upward to close the exhaust port 201 in the energy storage state. Specifically, the baffle 32 is provided with a chute 322 extending along the vertical direction, the top surface of the separating plate 31 is provided with a slide bar 314 extending upwards and slidingly matched with the chute, the first spring 33 is sleeved on the slide bar 314, the upper end of the first spring abuts against the baffle 32, and the lower end of the first spring abuts against the separating plate 31. The first spring is arranged, and after the sweeper is toppled over, the air outlet is reliably closed.

As shown in fig. 3 and 6, the separation plate 31 covers the air-passing hole 230 in a projection of the flow direction of the fluid in the air-passing hole 230 onto the surface of the air-passing hole 230. Thus, the fluid flowing in through the air port is blocked after passing through the separating piece, and the separation of dust and liquid is realized. In order to reduce the water flow in the chamber from entering the exhaust passage when the sweeper is tipped, the inner peripheral wall of the annular member 23 is provided with a vertically extending extension plate 2311, the extension plate 2311 being located partially on the inner wall of the first constriction 231. To further improve the separation capability, the top surface of the extension plate 2311 contacts the bottom surface of the wall plate where the air outlet 201 is located, and the bottom surface of the extension plate 2311 contacts the bottom surface of the ring 23, thus reducing the flow of water sputtered to the top surface of the chamber. The extending plates 2311 in this embodiment are two and are arranged at intervals along the circumferential direction of the ring member 23, the separating plate 31 is provided on the extending plates 2311, and a gap is formed between the separating plate 31, the extending plates 2311 and the ring member 23.

As shown in fig. 3 and 6, the flapper 32 is drivingly connected to the power output end of the linkage assembly 4. The upper surface of the baffle 32 has a convex portion 321 extending upward, and the outer peripheral surface of the convex portion 321 is gradually inclined outward from top to bottom, i.e., the left side of the convex portion 321 has an inclined surface 3211 gradually inclined leftward from top to bottom.

The power input end of the linkage assembly 4 is in driving connection with the first driving wheel assembly 8 and is used for enabling the separating piece 3 to move downwards at least partially in a state of opening the air outlet 201 when the second side of the first driving wheel assembly 8 is in an upward movement state; or in a state in which the second side of the first driving wheel assembly 8 is in a downward movement, the separating member 3 can be moved at least partially upward to be in a state in which the exhaust port 201 is closed. The linkage assembly includes a rotating rod 41, a transmission assembly 42, a movable rod 43 and a second elastic member. The rotation lever 41 is V-shaped and is located on the left side of the protrusion 321, that is, the inclined surface 3211 gradually inclines from top to bottom in the direction of the rotation lever 41. The aforementioned corner of the rotating lever 41 is arranged to rotate relative to the housing 2, and a first end 411 (left end) of the rotating lever 41 is arranged to be movable up and down; the power input end of the transmission assembly 42 is in driving connection with the first driving wheel assembly 8, and the power output end of the transmission assembly 42 can be in driving connection with the first end 411 of the rotating rod 41 and can drive the first end 411 of the rotating rod 41 to move upwards; the transmission assembly 42 includes a moving member 421 rotatably provided on the first housing 12 and synchronously moving up and down along with the second side of the first driving wheel assembly 8, and a pushing member 422 upwardly moving along with the moving member 421, the moving member 421 being located partially under the first end 411 of the rotation lever 41. As shown in fig. 4, the moving member 421 is generally triangular and vertically disposed, the moving member 421 is rotated relative to the first housing adjacent to the first side corner 4211 of the driving wheel assembly, and is coaxially disposed with the driving wheel assembly, the driving wheel assembly is provided with a driving portion 81 for pushing the second side corner 4212 of the moving member 421, and the third side corner 4213 of the moving member 421 is located below the first end 411 of the rotating rod 41. The pushing member 422 is located between the third corner 4213 of the moving member 421 and the first end 411 of the rotation lever 41, and has a vertically extending rod shape, and the pushing member 422 in this embodiment is mounted on the top cover 14 and is movable up and down with respect to the top cover 14. In addition, the transmission assembly can also adopt a push rod which is fixedly connected with the second side of the first driving wheel assembly 8 relatively, and the push rod extends vertically.

As shown in fig. 3, the movable lever 43 described above extends in the arrangement direction of the rotating lever 41 and the convex portion 321, that is, in the left-right direction, the left end of the movable lever 43 is in contact with the second end 412 of the rotating lever 41, and the right end of the rotating lever 41 has a pushing surface 431 on the side facing the convex portion 321, which is in agreement with the inclination direction of the inclined surface 3211 and can be in contact with the inclined surface 3211; the second elastic member acts on the movable lever 43, and is a second spring 44 which keeps the movable lever 43 moving leftwards. Thus, the movable rod 43 can move to the right under the pushing of the rotating rod 41, and the baffle 32 is driven to move downwards to open the air outlet by the cooperation of the inclined surface 3211 and the pushing surface 431; when the second end 412 of the rotating lever 41 moves leftwards, the movable lever 43 moves leftwards under the action of the second spring 44, and the blocking plate 32 moves upwards under the action of the first spring 33 to close the air outlet 201 by the cooperation of the inclined surface 3211 and the pushing surface 431.

The housing 2 has an air inlet channel 21 communicating the chamber 20 with the cleaning module 01 of the sweeper, the air inlet channel 21 being provided with a wind deflector 22 rotatable relative to the air inlet channel 21 for opening or blocking the air inlet channel 21, the wind deflector 22 having a first state of opening the air inlet channel 21 when the bottom of the sweeper is placed on the floor to be cleaned and a second state of blocking the air inlet channel 21 when the bottom of the sweeper is at least partially out of contact with the floor to be cleaned. The transmission mechanism 7 is used for driving the wind shield 22 to rotate so as to open or close the air inlet channel 21, and the power input end of the second driving wheel assembly 9 is in driving connection with the transmission mechanism 7, so that the wind shield 22 is driven to rotate to a first state of opening the air inlet channel 21 when the second side of the second driving wheel assembly 9 is in an upward movement state, and the wind shield 22 is driven to rotate to a second state of closing the air inlet channel 21 when the second side of the second driving wheel assembly 9 is in a downward movement state.

Specifically, the wind shield 22 is installed in the air intake passage 21 through a rotating shaft 221, an extension rod 222 extending laterally and located on the right side of the air intake passage 21 is provided on the outer side wall of the rotating shaft 221, the extension rod 222 is located on the right side of the air intake passage and is arranged adjacent to the transmission mechanism 7, the transmission mechanism 7 comprises a movable member 76 rotatably provided on the second housing 13 and moving up and down synchronously with the second side of the driving wheel assembly, and a push rod 761 capable of moving up along with the movable member 76, the movable member 76 is located partially under the extension rod, the push rod 761 is located between the movable member 76 and the extension rod 222, and a third elastic member acting on the extension rod 222 and making the extension rod 222 have a downward movement tendency in the energy storage state. The third elastic member is a torsion spring 223 sleeved on the rotating shaft 221. The structure of the movable member 76 in this embodiment is the same as that of the movable member, and the working principle of the driving assembly 32 is the same as that of the transmission mechanism 7, which will not be described in detail in this embodiment.

The working process of the sweeper is as follows:

when the sweeper is lifted or dumped, when the first driving wheel assembly 8 and the ground to be cleaned are in a non-contact ground-leaving state, the rear side of the first driving wheel assembly 8 is in a downward movement state, at this time, the moving member 421 rotates downward under the action of self gravity, at this time, the third corner 4213 of the moving member 421 moves downward, at this time, the pushing member 422 moves downward, and since the second end of the rotating rod 41 can move leftward, at this time, the movable rod 43 moves leftward under the action of the second spring 44, and under the cooperation of the inclined surface 3211 and the pushing surface 431, the baffle 32 moves upward under the action of the first spring 33 to close the air outlet 201. When the second driving wheel assembly 9 is in a non-contact ground-leaving state with the ground to be cleaned, the rear side of the second driving wheel assembly 9 is in a downward movement state, the movable piece 76 rotates downward under the action of self gravity, the push rod 761 moves downward at this time, and the extension rod 222 drives the wind shield to rotate to a second state of closing the air inlet channel under the action of the torsion spring 223.

When the sweeper is placed on the ground and can work normally, the rear side of the first driving wheel assembly 8 is in an upward movement state when the first driving wheel assembly 8 contacts with a surface to be cleaned, the second corner 4212 of the moving member 421 moves upward under the pushing of the driving part 81, the pushing member 422 moves upward, the first end of the rotating rod 41 is driven to move upward, the movable rod 43 can move rightward under the pushing of the rotating rod 41, and the baffle 32 is driven to move downward to open an air outlet under the cooperation of the inclined surface 3211 and the pushing surface 431. When the second driving wheel assembly 9 is in contact with the floor to be cleaned, the rear side of the second driving wheel assembly 9 is in an upward movement state, and the movable piece 76 rotates upward and drives the push rod 761 to move upward under the pushing of the second driving wheel assembly 9, the push rod 761 pushes the extension rod to rotate in the opposite rotation direction, and then the wind shield is driven to open the exhaust passage.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims (18)

1. A sweeper, comprising:

a machine body (1);

the driving wheel assembly is used for driving the machine body (1) to walk forwards, is arranged along the front-rear direction, and is rotatably arranged on the machine body (1) on the first side of the front side and the rear side of the driving wheel assembly so that the second side of the driving wheel assembly swings up and down relative to the machine body, the second side of the driving wheel assembly is in an upward movement state during the period that the bottom of the driving wheel assembly is completely contacted with the ground, and the second side of the driving wheel assembly is in a downward movement state during the period that the bottom of the driving wheel assembly is separated from the ground contact under the action of external force;

a separating mechanism (02) arranged on the machine body (1) and comprising a shell (2) and a separating piece (3) at least used for separating dust and liquid, wherein a cavity (20) is arranged in the shell (2), the cavity (20) is provided with an air outlet (201) used for being in fluid communication with a fan of the sweeper, and the separating piece (3) is positioned in the cavity (20);

the floor sweeper is characterized in that the separating piece (3) is positioned below the air outlet (201), and further comprises:

the power input end of the linkage assembly (4) is in driving connection with the driving wheel assembly, and the power output end of the linkage assembly is in driving connection with the separating piece (3) and is used for enabling at least part of the separating piece (3) to move upwards to be in a state of closing the air outlet (201) when the second side of the driving wheel assembly is in a downward movement state; alternatively, in a state in which the second side of the driving wheel assembly is in an upward movement, at least part of the separating member (3) is moved downward to be in a state in which the exhaust port (201) is opened.

2. The sweeper of claim 1, wherein: the separating piece (3) comprises a separating plate (31) which is relatively fixed with the shell (2) and a baffle plate (32) which can move along the up-down direction to open or close the air outlet (201), wherein the baffle plate (32) is positioned on the separating plate (31) and is in driving connection with the power output end of the linkage assembly (4).

3. The sweeper of claim 2, wherein: the air conditioner further comprises a first elastic piece acting on the baffle plate (32) and enabling the baffle plate (32) to move upwards all the time to close the air outlet (201) in an energy storage state.

4. The sweeper of claim 2, wherein: the upper surface of the baffle (32) is provided with an upward extending convex part (321), and the linkage assembly (4) comprises:

a rotating lever (41) having a V-shape and located on a peripheral side of the convex portion (321), a corner thereof being arranged to rotate relative to the housing (2), a first end (411) thereof being arranged to be movable up and down; the protruding part (321) has an inclined surface (3211) which gradually inclines towards the rotating rod (41) from top to bottom at one side towards the rotating rod (41);

the power input end of the transmission assembly (42) is in driving connection with the driving wheel assembly, the power output end of the transmission assembly can be in driving connection with the first end (411) of the rotating rod (41), and at least the first end (411) of the rotating rod (41) is driven to move upwards;

a movable lever (43) extending in the arrangement direction of the rotation lever (41) and the protrusion (321), one end of which is in contact with the second end (412) of the rotation lever (41) and moves in a direction away from the first end (411) of the rotation lever (41) by the pushing of the rotation lever (41), and the other end of which has a pushing surface (431) on a side facing the protrusion (321) which coincides with the inclination direction of the inclined surface (3211) and can be in contact with the inclined surface (3211); and

The second elastic piece acts on the movable rod (43) and enables the movable rod (43) to always have a trend of moving towards the first end (411) of the rotating rod (41).

5. The sweeper of claim 4, wherein: the machine body (1) comprises a bottom shell (11) and a first housing (12), wherein a first through hole (111) is formed in the bottom shell (11) at a position corresponding to the driving wheel assembly, the first housing (12) covers the bottom shell (11) and corresponds to the first through hole (111), and a space for accommodating the driving wheel assembly is formed between the first housing and the bottom shell (11).

6. The sweeper of claim 5, wherein: the transmission assembly (42) comprises a moving part (421) which can be rotatably arranged on the first housing (12) and synchronously moves up and down along with the second side of the driving wheel assembly, and a pushing part (422) which can move up along with the moving part (421), wherein the moving part (421) is partially positioned below the first end (411) of the rotating rod (41), and the pushing part (422) is positioned between the moving part (421) and the first end (411) of the rotating rod (41).

7. The sweeper of claim 6, wherein: the movable member (421) is integrally triangular and vertically arranged, a first corner (4211) of the movable member (421) adjacent to a first side of the driving wheel assembly rotates relative to the first housing and is coaxially arranged with the driving wheel assembly, a driving part (81) for pushing a second corner (4212) of the movable member (421) is arranged on the driving wheel assembly, and a third corner (4213) of the movable member (421) is located below the first end (411) of the rotating rod (41).

8. The sweeper of claim 1, wherein: the housing (2) is provided with an air inlet channel (21) communicated with the cavity (20) and a cleaning module of the sweeper, the air inlet channel (21) is provided with a wind shield (22) which can rotate relative to the air inlet channel (21) and is used for opening or blocking the air inlet channel (21), and the wind shield (22) is provided with a first state of opening the air inlet channel (21) when the bottom of the sweeper is placed on the ground to be cleaned and a second state of blocking the air inlet channel (21) when the bottom of the sweeper is at least partially separated from contact with the ground to be cleaned.

9. The sweeper of claim 8, wherein: the floor sweeping machine is characterized in that the driving wheel assemblies are first driving wheel assemblies (8), the floor sweeping machine further comprises second driving wheel assemblies (9) used for driving the machine body (1) to move forwards and a transmission mechanism (7) used for driving the wind deflector (22) to rotate and then open or close the air inlet channel (21), the first driving wheel assemblies (8) and the second driving wheel assemblies (9) are arranged at intervals along the left-right direction, first sides of the front side and the rear side of the second driving wheel assemblies (9) are rotatably arranged on the machine body (1), second sides of the front side and the rear side of the second driving wheel assemblies are arranged to be capable of moving up and down relative to the machine body (1), and a power input end of the second driving wheel assemblies (9) is in driving connection with the transmission mechanism (7), so that the second sides of the second driving wheel assemblies (9) are in an upward moving state to drive the wind deflector (22) to rotate to a first state of opening the air inlet channel (21), and the second sides of the second driving wheel assemblies (9) are in a downward moving state to drive the wind deflector (22) to rotate to close the second air inlet channel (21).

10. The sweeper of claim 9, wherein: the wind shield (22) is arranged in the air inlet channel (21) through a rotating shaft (221), the rotating shaft (221) is at least partially positioned outside the air inlet channel (21) and is arranged adjacent to the transmission mechanism (7), and the part of the rotating shaft (221) positioned outside the air inlet channel (21) is in driving connection with the transmission mechanism (7).

11. The sweeper of claim 10, wherein: the machine body (1) comprises a bottom shell (11) and a second housing (13), wherein a second through hole (112) is formed in the position, corresponding to the second driving wheel assembly (9), of the bottom shell (11), the second housing (13) covers the bottom shell (11) and corresponds to the position of the second through hole (112), and a space for accommodating the second driving wheel assembly (9) is formed between the second housing and the bottom shell (11).

12. The sweeper of claim 11, wherein: the outer side wall of the rotating shaft (221) is provided with an extension rod (222) extending laterally and located outside the air inlet channel (21), the transmission mechanism (7) comprises a movable part (76) which is rotatably arranged on the second housing (13) and moves up and down synchronously along with the second side of the driving wheel assembly, and a push rod (761) which can move up along with the movable part (76), the movable part (76) is located below the extension rod partially, the push rod (761) is located between the movable part (76) and the extension rod (222), and the transmission mechanism further comprises a third elastic part which acts on the extension rod (222) and enables the extension rod (222) to have a downward movement trend in an energy storage state.

13. The sweeper according to any one of claims 2 to 12, characterized in that: the air outlet (201) is arranged transversely on the surface where the air outlet is located, a vertically extending annular piece (23) is arranged in the cavity (20), the annular wall of the annular piece (23) is wound around the periphery of the air outlet (201) to form a flow channel communicated with the air outlet (201), the separating piece (3) is located in the flow channel of the annular piece (23), and a gap for air supply to pass through is reserved between the separating piece and the inner peripheral wall of the annular piece (23).

14. The sweeper of claim 13, wherein: the separation plate (31) covers the exhaust outlet (201) along the projection of the fluid flowing direction in the exhaust outlet (201) on the surface of the exhaust outlet (201).

15. The sweeper of claim 13, wherein: the bottom of the annular piece (23) is provided with an air passing opening (230) opposite to the air outlet (201), the air passing opening (230) is positioned below the air outlet (201) and is positioned at the upstream of the air outlet (201) along a fluid flow path, and the air passing opening (230) is covered by a projection of the separation plate (31) on the surface of the air passing opening (230) along the flow direction of fluid in the air passing opening (230).

16. The sweeper of claim 13, wherein: the inner peripheral wall of the annular piece (23) is provided with a vertically extending extension plate (2311), the separation plate (31) is arranged on the extension plate (2311), and the gap is formed among the separation plate (31), the extension plate (2311) and the annular piece (23).

17. The sweeper of claim 16, wherein: the top surface of the extension plate (2311) is in contact with the bottom surface of the wall plate where the air outlet (201) is located, and the bottom surface of the extension plate (2311) is in contact with the bottom surface of the annular piece (23).

18. The sweeper of claim 16, wherein: the annular wall of the annular piece (23) comprises a first contraction section (231) gradually contracting inwards from top to bottom, and the extension plate (2311) is at least partially positioned on the inner wall of the first contraction section (231).