Synchronous lifting mechanism for sweeping machine

Abstract

The present invention relates to the technical field of garbage cleaning, and specifically discloses a synchronous lifting mechanism for a sweeper, the synchronous lifting mechanism for a sweeper comprising a first mounting frame and a second mounting frame, the first mounting frame and the second mounting frame being fixed on a frame, a first driving member being arranged on the first mounting frame, the first driving member being drivingly connected to a synchronous traction mechanism, the synchronous traction mechanism being connected to a side brush device and a roller brush device, the first driving member being able to drive the synchronous traction mechanism to drive the side brush device and the roller brush device arranged on the frame to rise or fall synchronously, the transmission direction of the first driving member being able to be changed through the synchronous traction mechanism, so that the side brush device and the roller brush device can rise or fall at the same time, and the side brush device and the roller brush device can realize the rising or falling function by sharing the first driving member, thereby saving costs.

Description

Technical Field

[0001] The invention relates to the technical field of garbage cleaning, and in particular to a synchronous lifting mechanism for a sweeping machine. Background Art

[0002] A sweeping machine can automatically clean the floor in a room. It usually uses a brush and vacuum method to sweep or suck the debris on the floor into its own garbage collection box to complete the floor cleaning function. Sweeping machines are a relatively common product among cleaning products today. They are loved by a large number of users because of their high efficiency and thorough cleaning, especially in large shopping malls and office buildings, where they play an increasingly prominent role.

[0003] However, the side brushes of existing sweeping robots are generally fixed and in contact with the ground for a long time. When the sweeping robot is not in operation and moves, the ground will rub against the side brush, causing unnecessary wear on the side brush and reducing the service life of the side brush.

[0004] Therefore, there is an urgent need for a synchronous lifting mechanism for a sweeping machine to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a synchronous lifting mechanism for a sweeper, which can realize the synchronous rising or falling of a side brush device and a roller brush device during the operation of the sweeper, thereby avoiding damage to the side brush device due to collision with obstacles and reducing subsequent maintenance.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] The present invention provides a synchronous lifting mechanism for a sweeping machine, wherein the synchronous lifting mechanism for the sweeping machine is arranged on a frame, and the synchronous lifting mechanism for the sweeping machine comprises:

[0008] a first mounting frame and a second mounting frame, wherein the first mounting frame and the second mounting frame are fixed on the frame, and a first driving member is provided on the first mounting frame;

[0009] A synchronous traction mechanism, wherein the synchronous traction mechanism is connected with a side brush device and a roller brush device, and the synchronous traction mechanism is connected to the driving end of the first driving member, the first driving member can drive the synchronous traction mechanism to drive the side brush device and the roller brush device to rise or fall synchronously, the side brush device and the roller brush device are both arranged on a frame, and a vibration damping assembly is also provided between the side brush device and the synchronous traction mechanism, one end of the vibration damping assembly is connected to the side brush device, and the other end of the vibration damping assembly is connected to the synchronous traction mechanism.

[0010] Optionally, the synchronous traction mechanism includes a first fixed pulley, a second fixed pulley, a third fixed pulley, a first chain and a second chain, the first fixed pulley is fixed on the frame, the second fixed pulley is fixed on the second mounting frame, the third fixed pulley is fixed on the first mounting frame, the driving end of the first driving member is connected to the first chain, the first chain is arranged around the first fixed pulley, and the other end of the first chain is fixed to the roller brush device, the roller brush device is provided with a first fixing ear, the first fixing ear is provided with a second chain, the second chain is arranged around the second fixed pulley and the third fixed pulley, and the other end of the second chain is connected to the vibration damping assembly.

[0011] Optionally, the side brush device includes a front side brush mechanism, the front side brush mechanism includes two groups, the two groups of front side brush mechanisms are connected by a first connecting rod, and the vibration reduction assembly is arranged on the first connecting rod.

[0012] Optionally, the vibration damping assembly includes an elastic member and a first fixed rod, the two ends of the elastic member are respectively connected to the first fixed rod and the first connecting rod, the upper end surface of the first fixed rod is provided with a second fixing ear, the other end of the second chain is fixed on the second fixing ear, and the first connecting rod moves synchronously with the roller brush device.

[0013] Optionally, the front brush mechanism includes a first connecting rod, a first elastic anti-collision component, a second connecting rod and a first brush head connected in sequence, the first connecting rod is fixedly connected to the first connecting rod, the first connecting rod is arranged on the frame, the first connecting rod is rotatably connected to the frame, the first connecting rod is connected to the first elastic anti-collision component through a first hinge seat, the first elastic anti-collision component is fixedly connected to the second connecting rod, and the second connecting rod is connected to the first brush head.

[0014] Optionally, a second driving member is provided on the first connecting rod, a driving end of the second driving member is connected to the first articulated seat, and the second driving member drives the first articulated seat to drive the first elastic anti-collision component, the second connecting rod and the first brush head to swing in a second plane.

[0015] Optionally, the side brush device includes a rear side brush mechanism, the rear side brush mechanism includes two groups, the two groups of the rear side brush mechanisms are connected by a second connecting rod, the second connecting rod is fixed on the roller brush device, and the rear side brush mechanism moves synchronously with the roller brush device.

[0016] Optionally, the roller brush device includes a dust collecting shell and a roller brush head arranged in the dust collecting shell, and both ends of the roller brush head are rotatably arranged on the dust collecting shell.

[0017] Optionally, a fixing block is provided on the dust collecting shell, an end of the first chain not connected to the first driving member is fixed on the fixing block, and the first fixing ear is fixed on the fixing block.

[0018] Optionally, the roller brush device includes a third driving member and a belt transmission assembly, the third driving member is arranged on the dust collecting shell, the output end of the third driving member is connected to the input end of the belt transmission assembly, and the output end of the belt transmission assembly is connected to the roller brush head.

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides a synchronous lifting mechanism for a sweeping machine, which comprises a first mounting frame and a second mounting frame, wherein the first mounting frame and the second mounting frame are fixed on a frame, a first driving member is arranged on the first mounting frame, the first driving member is drivingly connected to the synchronous traction mechanism, the synchronous traction mechanism is connected to a side brush device and a roller brush device, the first driving member can drive the synchronous traction mechanism to drive the side brush device and the roller brush device arranged on the frame to rise or fall synchronously, the transmission direction of the first driving member can be changed through the synchronous traction mechanism, so that the side brush device and the roller brush device can rise or fall at the same time, and the side brush device and the roller brush device can realize the rising or falling function by sharing the first driving member, thereby saving costs.

[0021] The synchronous lifting mechanism for the sweeping machine also includes a vibration reduction component, which is arranged on the side brush device, and the other end of the vibration reduction component is connected to the synchronous traction mechanism. The vibration reduction component can play a role in vibration reduction and buffering, thereby avoiding collision between the side brush assembly and the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a synchronous lifting mechanism for a sweeping machine in an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0024] Figure 3 It is a structural schematic diagram of a side brush device in an embodiment of the present invention;

[0025] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0026] Figure 5 It is a structural schematic diagram of a roller brush device in an embodiment of the present invention;

[0027] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0028] Figure 7 Schematic diagram of the structure of the roller brush device in another embodiment of the present invention.

[0029] In the figure:

[0030] 100, synchronous lifting mechanism for sweeping machine; 110, second mounting frame; 120, first driving member; 121, cylinder push rod; 130, first fixed pulley; 140, second fixed pulley; 150, third fixed pulley; 160, first chain; 161, fixing pin; 170, second chain; 180, vibration reduction assembly; 181, elastic member; 182, first fixing rod;

[0031] 200, roller brush device; 210, dust collecting shell; 201, dust collecting inlet; 202, dust collecting outlet; 211, first mounting plate; 212, movable connecting rod; 213, second mounting plate; 214, mounting groove; 220, fixing block; 2201, fixing bolt; 2202, first fixing ear; 230, third driving member; 240, belt transmission assembly; 241, driving wheel; 242, driven wheel; 243, transmission belt; 244, rotating shaft; 250, roller brush head;

[0032] 300, front brush mechanism; 310, first connecting rod; 311, third mounting bracket; 320, first connecting rod; 330, first hinge seat; 331, first end; 332, second end; 333, third end; 340, first elastic anti-collision component; 341, first fixing block; 342, first shaft seat; 343, I-shaped swing member; 344, second shaft seat; 345, first pin shaft; 3451, first torsion spring; 346, second pin shaft; 3462, second torsion spring; 347, first limit plate; 348, third limit plate; 350, second connecting rod; 351, fourth mounting bracket; 352, circular fixing bracket; 360, first brush head; 370, fourth driving member; 380, anti-collision ring;

[0033] 400, rear brush mechanism; 410, second connecting rod; 411, second fixing rod; 420, third connecting rod; 421, fifth mounting bracket; 430, second brush head; 440, fifth driving member;

[0034] 500. Protective cover. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] Generally speaking, a sweeping machine usually includes a frame, and a side brush device and a roller brush device 200 arranged on the frame. The side brush device gathers garbage or dust to the roller brush device 200, and then the roller brush device 200 collects the garbage or dust.

[0040] like Figure 1 and Figure 2As shown, this embodiment provides a synchronous lifting mechanism 100 for a sweeping machine, which is arranged on a frame and is used to synchronously drive a side brush device and a roller brush device 200 arranged on the frame to rise or fall simultaneously. The synchronous lifting mechanism 100 for a sweeping machine includes a first mounting frame (not shown in the figure), a second mounting frame 110 and a synchronous traction mechanism. The first mounting frame and the second mounting frame 110 are fixed on the frame, a first driving member 120 is arranged on the first mounting frame, and the synchronous traction mechanism is connected to the side brush device and the roller brush device 200, and the synchronous traction mechanism is connected to the side brush device and the roller brush device 200. The traction mechanism is connected to the driving end of the first driving member 120. The first driving member 120 can drive the synchronous traction mechanism to drive the side brush device and the roller brush device 200 to rise or fall synchronously. The side brush device and the roller brush device 200 are both arranged on the frame. Since the first driving member 120 can drive the side brush device and the roller brush device 200 to move synchronously at the same time through the synchronous traction mechanism, the side brush device and the roller brush device 200 can rise or fall at the same time. The side brush device and the roller brush device 200 share the first driving member 120 to achieve the function of rising or falling, thereby reducing costs.

[0041] Furthermore, a vibration reduction assembly 180 is provided between the side brush device and the synchronous traction mechanism, one end of the vibration reduction assembly 180 is connected to the side brush device, and the other end of the vibration reduction assembly 180 is connected to the synchronous traction mechanism. By providing the vibration reduction assembly, a rigid connection between the side brush assembly and the synchronous traction mechanism can be avoided, and the side brush device is protected from damage. At the same time, the vibration reduction assembly can buffer the side brush device, so that the side brush assembly can smoothly transition when rising to the highest point or falling to the lowest point, and the entire movement process is relatively gentle, which reduces rigid impact and prolongs its service life.

[0042] As an optional solution, the synchronous traction mechanism includes a first fixed pulley 130, a second fixed pulley 140, a third fixed pulley 150, a first chain 160 and a second chain 170, the first fixed pulley 130 is fixed on the frame, the second fixed pulley 140 is fixed on the second mounting frame 110, the third fixed pulley 150 is fixed on the first mounting frame, and the third fixed pulley 150 is arranged below the first driving member 120, the driving end of the first driving member 120 is connected to the first chain 160, the first chain 160 is arranged around the first fixed pulley 130, and the other end of the first chain 160 is fixed on the roller brush device 200, the roller brush device 200 is provided with a first fixing ear 2202, and the first fixing ear 2202 is provided with a second chain 1 70, the second chain 170 is arranged to bypass the second fixed pulley 140 and the third fixed pulley 150, one end of the second chain 170 is fixedly connected to the first fixed ear 2202 of the roller brush device 200, and the other end of the second chain 170 is fixed on the vibration reduction assembly 180 after bypassing the second pulley and the third pulley, and the vibration reduction assembly 180 is connected to the side brush device, so as to realize the connection between the synchronous traction mechanism and the side brush device, and then through the arrangement of the first fixed pulley 130, the second fixed pulley 140 and the third fixed pulley 150, the transmission direction of the first driving member 120 can be changed, so that the side brush device and the roller brush device 200 can rise or fall at the same time, and the side brush device and the roller brush device can realize the function of rising or falling by sharing the first driving member, thereby saving costs.

[0043] In some embodiments, the first driving member 120 includes a cylinder and a cylinder push rod 121, one end of the cylinder push rod 121 is connected to the cylinder, and the cylinder can push the cylinder push rod 121 to extend or retract. A fixing hole is provided on the other end of the cylinder push rod 121. Accordingly, a fixing pin 161 is provided at one end of the first chain 160, and the fixing pin 161 can be inserted into the fixing hole to fix the first chain 160 and the cylinder push rod 121. The end of the first chain 160 that is not connected to the cylinder push rod 121 is fixed on the roller brush device 200.

[0044] When in use, the cylinder push rod 121 of the first driving member 120 drives the first chain 160 to retract, and the first chain 160 drives the roller brush device 200 to rise. The rising of the roller brush device 200 drives one end of the second chain 170 to rise. Through the reversing effect of the second fixed pulley 140 and the third fixed pulley 150, the other end of the second chain 170 drives the side brush device to rise; the cylinder push rod 121 of the first driving member 120 drives the first chain 160 to extend, and the first chain 160 drives the roller brush device 200 to descend. The descending of the roller brush device 200 drives one end of the second chain 170 to descend. Through the reversing effect of the second fixed pulley 140 and the third fixed pulley 150, the other end of the second chain 170 drives the side brush device to descend, thereby realizing that the side brush device and the roller brush device 200 rise or fall in the same direction and synchronously. The synchronous lifting mechanism 100 for the entire sweeping machine occupies a small space and has a high space utilization rate, which is conducive to reducing the volume of the entire sweeping machine and making the sweeping machine more miniaturized.

[0045] See also Figure 2 and Figure 3 The side brush device in this embodiment includes a front side brush mechanism 300, which includes two groups. The two groups of front side brush mechanisms 300 are connected by a first connecting rod 310, and the vibration reduction assembly 180 is arranged on the first connecting rod 310. The vibration reduction assembly 180 includes an elastic member 181 and a first fixed rod 182, and the two ends of the elastic member 181 are respectively connected to the first fixed rod 182 and the first connecting rod 310. The upper end surface of the first fixed rod 182 is provided with a second fixing ear, and one end of the second chain 170 connected to the vibration reduction assembly 180 is fixed to the second fixing ear, so that the first connecting rod 310 and the roller brush device 200 move synchronously, thereby driving the front side brush mechanism 300 and the roller brush device 200 to rise or fall synchronously.

[0046] In some embodiments, a plurality of elastic members 181 may be provided, and the plurality of elastic members 181 are evenly arranged on the first connecting rod 310. The elastic member 181 may be a spring, which has good elastic deformation capability and low cost.

[0047] Further, the front brush mechanism 300 includes a first connecting rod 320, a first elastic anti-collision component 340, a second connecting rod 350 and a first brush head 360 which are connected in sequence. The first connecting rod 310 is fixedly connected to the first connecting rod 320. The first connecting rod 320 is arranged on the frame and the first connecting rod 320 is rotatably connected to the frame. The other end of the first connecting rod 320 is connected to the first elastic anti-collision component 340 through the first hinge seat 330. The first elastic anti-collision component 340 is fixedly connected to the second connecting rod 350, and the second connecting rod 350 is connected to the first brush head 360. The first elastic anti-collision component 340 can generate an avoidance swinging action when the second connecting rod 350 or the first brush head 360 is impacted by an external force or encounters an obstacle. When the external force disappears, the first elastic anti-collision component 340 returns to its original position, thereby protecting the front brush mechanism 300 from damage. The first elastic anti-collision component 340 is flexible and reliable to use.

[0048] Specifically, see Figure 4 The first elastic anti-collision component 340 includes a first fixed block 341, a first shaft seat 342, an I-shaped swinging piece 343 and a second shaft seat 344, the first hinged seat 330 includes a first end 331, a second end 332 and a third end 333, the first end 331 is rotatably connected to the first connecting rod 320, the second end 332 is rotatably connected to the driving end of the second driving member, and the third end 333 is fixedly connected to the first fixed block 341, and a first shaft seat 342 is provided on the first fixed block 341, the first shaft seat 342 and one end of the I-shaped swinging piece 343 are rotatably connected through a first pin shaft 345, and the other end of the I-shaped swinging piece 343 is rotatably connected to the second shaft seat 344 through a second pin shaft 346, the second shaft seat 344 is fixedly connected to the second connecting rod 350, and the axes of the first pin shaft 345 and the second pin shaft 346 are both perpendicular to the ground. The first elastic anti-collision component 340 can swing in both the inner and outer directions toward the front brush mechanism 300. When the second connecting rod 350 or the first brush head 360 encounters an obstacle, no matter where the front brush mechanism 300 swings to, after the second connecting rod 350 or the first brush head 360 loses the applied external force, the first elastic anti-collision component 340 can ensure that the second connecting rod 350 or the first brush head 360 returns to its original position, thereby avoiding damage to the front brush mechanism 300 when stepped on or collided.

[0049] As an optional technical solution, a first limit plate 347 and a second limit plate (not shown in the figure) are fixed on the I-shaped swing member 343. The first limit plate 347 is arranged on the outer side of the I-shaped swing member 343 and corresponds to the position of the first pin shaft 345. The second limit plate is arranged on the inner side of the I-shaped swing member 343 and corresponds to the position of the second pin shaft 346. Therefore, when the second connecting rod 350 or the first brush head 360 is subjected to an external force toward the inner side of the front side brush mechanism 300, the I-shaped swing member 343 can swing around the first pin shaft 345 toward the inner side of the front side brush mechanism 300. When the second connecting rod 350 or the first brush head 360 is subjected to an external force toward the outer side of the front side brush mechanism 300, the second connecting rod 350 and the first brush head 360 can swing around the second pin shaft 346 toward the outer side of the front side brush mechanism 300.

[0050] Furthermore, a first torsion spring 3451 is sleeved on the first pin shaft 345, one end of the first torsion spring 3451 presses the first limit plate 347, and the other end of the first torsion spring 3451 presses the I-shaped swinging member 343, and a second torsion spring 3462 is sleeved on the second pin shaft 346, one end of the second torsion spring 3462 presses the second limit plate, and the other end of the second torsion spring 3462 presses the second connecting rod 350. The provision of the first torsion spring 3451 and the second torsion spring 3462 enables the I-shaped swinging member 343 or the second connecting rod 350 and the first brush head 360 to return to their original positions after swinging.

[0051] A third limit plate 348 may also be fixed on the frame, and the third limit plate 348 may limit the highest point of the front brush mechanism 300 to avoid collision between the front brush mechanism 300 and the frame. Specifically, the third limit plate 348 may be arranged corresponding to the position of the second pin 346. More preferably, a buffer is provided on the lower end surface of the third limit plate 348, that is, on the plane where the third limit plate 348 contacts the second pin 346. By providing the buffer, a rigid collision between the second pin 346 and the third limit plate 348 is avoided, and the impact is mitigated. In some embodiments, the buffer may be made of a highly elastic material with reversible deformation, such as rubber, and is not specifically limited.

[0052] Continue to see Figure 3The first connecting rod 310 is provided with a third mounting frame 311 and a second driving member (not shown in the figure), the second driving member is fixed on the third mounting frame 311, the driving end of the second driving member is connected to the second end 332 of the first hinge seat 330, and the second driving member can drive the first hinge seat 330 to drive the first elastic anti-collision component 340, the second connecting rod 350 and the first brush head 360 to swing left and right in a plane parallel to the ground, so that the front brush mechanism 300 can cover all positions on the route where the sweeper passes, the cleaning area is wide, there is no cleaning dead corner, and the cleaning efficiency is high. In some embodiments, the second driving member can use an electric push rod to realize the left and right swinging action of the front brush mechanism 300, ensuring the compactness and smallness of the overall structure.

[0053] The front brush mechanism 300 also includes a water spray assembly, which includes a water tank, a water pump, a water pipe, a circular fixing frame 352 and a spray head. The water tank and the water pump are fixed on the frame, the water pump connects the water tank and the water pipe, the circular fixing frame 352 is arranged above the first brush head 360, the circular fixing frame 352 is fixed on the second connecting rod 350, the water pipe is circumferentially fixed on the circular fixing frame 352, and a spray head is arranged above the water pipe installed on the circular fixing frame 352. The water in the water tank can be transported to the spray head of the water pipe through the water pump and sprayed out through the spray head. The water sprayed by the spray head can wet the ground, so as to avoid a large amount of dust being brought up when the first brush head 360 rotates. The user experience effect is good, and the spray head is arranged in a ring shape, the spraying is more uniform, and the dust removal effect is good.

[0054] More preferably, an anti-collision ring 380 is provided on the periphery of the circular fixing frame 352. The anti-collision ring 380 can further mitigate the impact caused by the collision between the front brush mechanism 300 and the obstacle, and effectively protect the front brush mechanism 300.

[0055] The side brush device also includes a rear side brush mechanism 400, which includes two groups. The two groups of rear side brush mechanisms 400 are connected by a second connecting rod 410. The second connecting rod 410 is provided with a second fixing rod 411. Figure 5 The roller brush device 200 is provided with a mounting groove, and the second fixing rod 411 is fixed in the mounting groove by connecting parts such as bolts, so that the rear brush mechanism 400 can rise or fall synchronously with the roller brush device 200 and the front brush mechanism 300, and the front brush mechanism 300, the rear brush mechanism 400 and the roller brush device 200 can be driven to move simultaneously through the first driving member 120, thereby reducing the setting of the driving member, reducing the weight of the whole sweeper, and reducing the cost.

[0056] Continue to see Figure 3The rear side brush mechanism 400 includes a third connecting rod 420 and a second brush head 430, the second brush head 430 is fixedly connected to the third connecting rod 420, and the third connecting rod 420 is fixed to the second connecting rod 410. The length of the second connecting rod 410 is greater than the length of the first connecting rod 310, so that the rear side brush mechanism 400 can further expand the cleaning area of ​​the side brush of the sweeper, and the cleaning range is wider. The rear side brush mechanism 400 can also clean the side positions without cleaning dead corners. At the same time, the rear side brush mechanism 400 can also play a role of secondary cleaning, and can collect fine particles missed by the front side brush mechanism 300, and the cleaning effect is better.

[0057] As an optional solution, a fourth mounting frame 351 is provided at the end of the second connecting rod 350, the first brush head 360 is mounted on the fourth mounting frame 351, a fourth driving member 370 is fixed on the fourth mounting frame 351, the driving end of the fourth driving member 370 is drivingly connected to the first brush head 360, and the first brush head 360 can be driven to rotate by the fourth driving member 370. A fifth mounting frame 421 is provided at the end of the third connecting rod 420, the second brush head 430 is mounted on the fifth mounting frame 421, a fifth driving member 440 is fixed on the fifth mounting frame 421, the driving end of the fifth driving member 440 is drivingly connected to the second brush head 430, and the second brush head 430 can be driven to rotate by the fifth driving member 440. In order to protect the fourth driving member 370 and the fifth driving member 440, a protective cover 500 is provided on the outer side of the fourth driving member 370 and the fifth driving member 440. The protective cover 500 can prevent dust and the like from entering the fourth driving member 370 or the fifth driving member 440 during cleaning, which is beneficial to extending the service life of the fourth driving member 370 and the fifth driving member 440.

[0058] In some embodiments, the fourth driving member 370 or the fifth driving member 440 may be a rotary motor, which can realize high-speed rotation of the first brush head 360 and the second brush head 430 to ensure the compactness and smallness of the overall structure.

[0059] See also Figure 5 , Figure 6 and Figure 7The roller brush device 200 includes a dust collecting shell 210 and a roller brush head 250 disposed in the dust collecting shell 210. Both ends of the roller brush head 250 are rotatably disposed on the dust collecting shell 210. The dust collecting shell 210 is fixed to the frame through a first mounting plate 211 and a movable connecting rod 212. A fixed block is provided on the dust collecting shell 210, and one end of the first chain 160 that is not connected to the first driving member 120 is fixed to the fixed block, and the first fixed ear 2202 is fixed to the fixed block. Exemplarily, a fixing bolt 2201 is provided on the upper end surface of the fixed block, the first chain 160 is fixed on the fixing bolt 2201, the lower part of the side end surface of the fixed block is provided with a first fixing ear 2202, and one end of the second chain 170 is fixed to the first fixing ear 2202 by a copper drum fixing bolt 2201. Further, the other end of the second chain 170 can also be fixed to the upper end surface of the first fixing rod 182 of the vibration reduction assembly 180 by a fixing bolt 2201.

[0060] The roller brush device 200 further includes a third driving member 230 and a belt transmission assembly 240. The dust collecting housing 210 is provided with a second mounting plate 213. The third driving member 230 is arranged on the second mounting plate 213. The output end of the third driving member 230 is connected to the input end of the belt transmission assembly 240. The output end of the belt transmission assembly 240 is connected to the roller brush head 250, so that the third driving member 230 can drive the roller brush head 250 to rotate, so that the roller brush head 250 collects garbage or dust into the dust collecting housing 210. The dust collecting housing 210 is provided with a dust collecting inlet 201 and a dust collecting outlet 202. The roller brush head 250 is arranged at the dust collecting inlet 201. Garbage or dust enters the dust collecting housing 210 through the dust collecting inlet 201, and is then sent out through the dust collecting outlet 202 and enters the garbage storage device of the sweeper. By setting the belt drive assembly 240, the space inside the sweeping machine can be reasonably arranged, reducing the overall volume of the sweeping machine, making the sweeping machine more compact.

[0061] As an optional technical solution, continue to refer to Figure 5 The belt drive assembly 240 includes a driving wheel 241, a driven wheel 242, a transmission belt 243 and a rotating shaft 244. The output end of the third driving member 230 is fixedly connected to the driving wheel 241. The driven wheel 242 is fixedly connected to the roller brush head 250 through the rotating shaft 244. The driven wheel 242 is coaxially arranged with the roller brush head 250. The driving wheel 241 and the driven wheel 242 are located in the same plane. The transmission belt 243 is sleeved on the driving wheel 241 and the driven wheel 242, thereby completing the connection between the third driving member 230 and the roller brush head 250. The third driving member 230 can drive the roller brush head 250 to rotate. Preferably, in order to prevent the transmission belt 243 from slipping on the driving wheel 241 or the driven wheel 242, anti-skid teeth are provided on the driving wheel 241 or the driven wheel 242.

[0062] In some embodiments, the third driving member 230 may be a rotary motor, which can be used to realize high-speed rotation of the roller brush head 250, thereby ensuring the compactness and smallness of the overall structure.

[0063] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

[0064] Note that in the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A synchronous lifting mechanism for a sweeping machine, characterized in that: The synchronous lifting mechanism (100) for a sweeping machine is arranged on a frame, and the synchronous lifting mechanism (100) for a sweeping machine comprises: A first mounting frame and a second mounting frame (110), wherein the first mounting frame and the second mounting frame (110) are fixed on the frame, and a first driving member (120) is provided on the first mounting frame; A synchronous traction mechanism, wherein the synchronous traction mechanism is connected to a side brush device and a roller brush device (200), and the synchronous traction mechanism is connected to the driving end of the first driving member (120), the first driving member (120) can drive the synchronous traction mechanism to drive the side brush device and the roller brush device (200) to rise or fall in the same direction and synchronously, the side brush device and the roller brush device (200) are both arranged on a frame, and a vibration reduction component (180) is further arranged between the side brush device and the synchronous traction mechanism, one end of the vibration reduction component (180) is connected to the side brush device, and the other end of the vibration reduction component (180) is connected to the synchronous traction mechanism; The synchronous traction mechanism comprises a first fixed pulley (130), a second fixed pulley (140), a third fixed pulley (150), a first chain (160) and a second chain (170), wherein the first fixed pulley (130) is fixed on the frame, the second fixed pulley (140) is fixed on the second mounting frame (110), the third fixed pulley (150) is fixed on the first mounting frame, the driving end of the first driving member (120) is connected to the first chain (160), and the first chain (170) is connected to the first driving member (120). 60) is arranged around the first fixed pulley (130), and the other end of the first chain (160) is fixed to the roller brush device (200), the roller brush device (200) is provided with a first fixing ear (2202), the first fixing ear (2202) is provided with a second chain (170), the second chain (170) is arranged around the second fixed pulley (140) and the third fixed pulley (150), and the other end of the second chain (170) is connected to the vibration reduction assembly (180).

2. The synchronous lifting mechanism for a sweeping machine according to claim 1, characterized in that: The side brush device comprises a front side brush mechanism (300), wherein the front side brush mechanism (300) comprises two groups, the two groups of the front side brush mechanisms (300) are connected via a first connecting rod (310), and the vibration reduction assembly (180) is arranged on the first connecting rod (310).

3. The synchronous lifting mechanism for a sweeping machine according to claim 2, characterized in that: The vibration reduction assembly (180) comprises an elastic member (181) and a first fixed rod (182); two ends of the elastic member (181) are respectively connected to the first fixed rod (182) and the first connecting rod (310); a second fixing ear is provided on the upper end surface of the first fixed rod (182); the other end of the second chain (170) is fixed on the second fixing ear; and the first connecting rod (310) moves synchronously with the roller brush device (200).

4. The synchronous lifting mechanism for a sweeping machine according to claim 2, characterized in that: The front brush mechanism (300) comprises a first connecting rod (320), a first elastic anti-collision component (340), a second connecting rod (350) and a first brush head (360) which are connected in sequence, wherein the first connecting rod (310) is fixedly connected to the first connecting rod (320), the first connecting rod (320) is arranged on the frame, the first connecting rod (320) is rotatably connected to the frame, the first connecting rod (320) is connected to the first elastic anti-collision component (340) via a first hinge seat (330), the first elastic anti-collision component (340) is fixedly connected to the second connecting rod (350), and the second connecting rod (350) is connected to the first brush head (360).

5. The synchronous lifting mechanism for a sweeping machine according to claim 4, characterized in that: A second driving member is provided on the first connecting rod (310), and a driving end of the second driving member is connected to the first hinge seat (330). The second driving member drives the first hinge seat (330) to drive the first elastic anti-collision component (340), the second connecting rod (350) and the first brush head (360) to swing in a second plane.

6. The synchronous lifting mechanism for a sweeping machine according to claim 1, characterized in that: The side brush device comprises a rear side brush mechanism (400), the rear side brush mechanism (400) comprises two groups, the two groups of the rear side brush mechanism (400) are connected via a second connecting rod (410), the second connecting rod (410) is fixed on the roller brush device (200), and the rear side brush mechanism (400) moves synchronously with the roller brush device (200).

7. The synchronous lifting mechanism for a sweeping machine according to claim 1, characterized in that: The roller brush device (200) comprises a dust collecting shell (210) and a roller brush head (250) arranged in the dust collecting shell (210), and both ends of the roller brush head (250) are rotatably arranged on the dust collecting shell (210).

8. The synchronous lifting mechanism for a sweeping machine according to claim 7, characterized in that: A fixing block is provided on the dust collecting shell (210), the end of the first chain (160) not connected to the first driving member (120) is fixed on the fixing block, and the first fixing ear (2202) is fixed on the fixing block.

9. The synchronous lifting mechanism for a sweeping machine according to claim 7, characterized in that: The roller brush device (200) comprises a third driving member (230) and a belt transmission assembly (240), wherein the third driving member (230) is arranged on the dust collecting shell (210), the output end of the third driving member (230) is connected to the input end of the belt transmission assembly (240), and the output end of the belt transmission assembly (240) is connected to the roller brush head (250).

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