Low-noise fan assembly and sweeper with same

Abstract

The fan assembly is used for generating negative pressure in the sweeper and comprises a fan and a fan connecting piece connected with the fan, the fan connecting piece is connected with the sweeper, an air guide opening is formed in the fan connecting piece, and the fan connecting piece is connected with the sweeper through the air guide opening. The draught fan further comprises a draught fan box connected with the draught fan connecting piece, an air inlet is formed in the draught fan box, an air circulation channel is formed between the air inlet and the air guide opening, the draught fan is sleeved with a noise reduction assembly, and air outlet holes are formed in the noise reduction assembly. The noise reduction sleeve is arranged outside the draught fan in a sleeving mode so that noise generated when the draught fan works can be reduced, the air outlet holes are formed in the noise reduction sleeve so that air can be discharged conveniently when the draught fan works, meanwhile, the air outlet holes extend outwards and have a certain height, the noise generated by the draught fan can be further reduced while air is discharged, and the noise reduction effect is better. Meanwhile, the height difference exists between the air guide opening and the air inlet, dust is prevented from directly penetrating through the air inlet through the air guide opening and entering the fan, and the use performance of the fan is improved.

Description

Technical Field

[0001] The utility model relates to the field of a fan assembly and a sweeper, in particular to a low-noise fan assembly and a sweeper with the fan assembly. Background Art

[0002] Cleaning devices, such as floor scrubbers and sweeping robots, have gradually become cleaning tools in people's daily lives. The working principle of a floor scrubber is as follows: a large vacuum is generated at the inlet (static pressure greater than 4.5kpa), a mixture of water and garbage is sucked in, and the garbage is collided and separated in the sewage bucket, so the medium needs to overcome a large flow resistance. This requires the fan to have a large vacuum in a smaller design size space, and the air volume is greater than 0.6m3 / min, and the efficiency is greater than 50% to ensure high endurance. This will bring great challenges and difficulties to the design of the fan.

[0003] The dust collection system inside the sweeper is usually an internal circulation, that is, the airflow generated by the fan is discharged from the air outlet of the fan and then transported to the air inlet of the sweeper through a pipe. After the airflow enters the dust box of the sweeper, it can stir the debris in the dust box of the sweeper and blow the debris to the air outlet of the sweeper. At this time, it is only necessary to assemble a dust bag at the air outlet of the sweeper to collect the debris in the dust box of the sweeper. At the same time, the air outlet of the sweeper can also be connected to the air inlet of the fan. When the fan is working, the fan can absorb the debris at the air outlet of the sweeper while maintaining the air supply to the air inlet of the sweeper to blow the debris. Although such a structure has a good dust collection effect, the overall cost is relatively high, the structure is complex, and the relative cost performance is low. The fan of the existing sweeper often produces a large noise when in use, and the physical inspection is poor during use; at the same time, the fan assembly of the sweeper is connected to the garbage bin, and the dust in the garbage bin is easy to enter the fan. Long-term use will cause dust to accumulate at the fan mouth or dust in the fan, thereby affecting the service life of the fan.

[0004] Chinese patent publication number CN220505412U discloses a fan and a cleaning device using the fan, the fan includes an outer shell and an inner shell arranged in intervals in the outer shell, along the gas flow direction, the outer shell is provided with a moving impeller, a first-stage stator blade and a second-stage stator blade in sequence from upstream to downstream, the first-stage stator blade and the second-stage stator blade are arranged on the periphery of the inner shell; the space between the outer shell and the inner shell forms a first-stage stator blade duct corresponding to the first-stage stator blade and a second-stage stator blade duct corresponding to the second-stage stator blade; the second-stage stator blade duct is a duct that gradually diffuses from upstream to downstream. Compared with the prior art, the utility model has the advantages that: by forming a diffused duct, the vortex intensity and airflow kinetic pressure energy in the duct are reduced, the vibration generated during operation is reduced, and the fundamental frequency noise is reduced; and the wind speed in the duct can be reduced, the airflow impact noise is reduced, and the noise sound pressure level is reduced in the full frequency band. The patent adopts multi-stage stator blades for noise reduction, and the noise reduction cost is high, which increases the cost during use and replacement.

[0005] Chinese patent publication number CN215272501 U discloses a noise reduction body for a floor scrubber, comprising: a body, a positioning cylinder; a foam aluminum sleeve is installed inside the body, a guide sleeve is provided at the lower end of the foam aluminum sleeve, the positioning cylinder is located inside the foam aluminum sleeve, a support fin is fixedly installed on the positioning cylinder, the support fin is spirally coiled on the side wall of the positioning cylinder, the outer end side of the support fin is fixed on the inner side wall of the foam aluminum sleeve, a mounting frame is fixed on the inner end side of the support fin, a motor is fixed on the mounting frame, an impeller is fixed at the output end of the motor, the impeller is located in the guide sleeve, an end cover is provided on the body at the upper part of the foam aluminum sleeve, and an exhaust hole is provided on the end cover. When the airflow passes through the gap between the foam aluminum sleeve and the positioning cylinder, the noise generated will be absorbed by the porous foam aluminum sleeve to achieve a noise reduction effect. However, there is no isolation measure between the fan and the body, and the airflow generated by the fan during operation is easy to suck dust into the fan, affecting the long-term use of the fan. Utility Model Content

[0006] The technical problem to be solved by the utility model is that the fan of the existing sweeping machine often produces a large noise when in use, and the physical inspection is poor during use; at the same time, the fan assembly of the sweeping machine is connected to the garbage bin, and the dust in the garbage bin easily enters the fan. Long-term use will cause dust to accumulate at the fan port or dust in the fan, thereby affecting the service life of the fan. In view of the above-mentioned defects of the prior art, a low-noise fan assembly and a sweeping machine having the fan assembly are provided.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A low-noise fan assembly is constructed, which is used to generate negative pressure in a sweeping machine. The fan assembly includes a fan and a fan connector connected to the fan, and is connected to the sweeping machine through the fan connector. The fan connector is provided with an air guide port. The fan is characterized in that: the fan also includes a fan box connected to the fan connector, the fan box is provided with an air inlet, an air circulation channel is formed between the air inlet and the air guide port, the fan jacket is provided with a noise reduction assembly, and the noise reduction assembly is provided with an air outlet.

[0009] Preferably, the noise reduction component is a noise reduction sleeve mounted on the outside of the fan, a wiring hole is provided at the bottom of the silicone sleeve, a wiring hole is provided at the bottom of the noise reduction sleeve, and the connecting wire at the bottom of the fan is connected through the wiring hole.

[0010] Preferably, a plurality of groups of air outlet holes are arranged on the noise reduction sleeve, and a limiting block is arranged on the side of the noise reduction sleeve, and the limiting block fixes the fan assembly in the sweeper.

[0011] Preferably, the air outlet hole extends outward from the surface of the noise reduction sleeve to form a silencer hole with a height, the airflow in the fan is discharged through the silencer hole, and the silencer hole reduces the sound level when the fan is working.

[0012] Preferably, filter cotton is arranged in the air circulation channel, and the air guide port and the air inlet are placed at different horizontal planes to prevent dust from entering the air inlet through the air guide port.

[0013] A low-noise sweeper is constructed, including a bottom shell, a cleaning component arranged on the bottom shell for cleaning, a control board connected to the cleaning component, a low-noise fan component as described above connected to the control board is also arranged in the bottom shell, and a storage space for storing cleaned objects connected to the fan component, the storage space is connected to the cleaning component through a dust suction channel, the fan component is connected to the storage space and generates negative pressure in the storage space, and the cleaning component transports cleaned debris to the storage space through the dust suction channel under the action of negative pressure.

[0014] Preferably, the bottom shell and one side of the top shell are fixed by snapping together the front cover, and the cleaning assembly includes a motor and a cleaning member that drives the motor to rotate, and the cleaning member is used for cleaning.

[0015] Preferably, a gear box is provided between the motor and the cleaning member, and the gear box makes the rotation speed of the cleaning member higher than the rotation speed of the motor. The cleaning member is provided with a plurality of groups of cleaning wings, and the cleaning wings are eccentric.

[0016] Preferably, a roller assembly is also provided at the bottom of the sweeper, and the roller assembly includes a driving wheel and a driven wheel, as well as a universal wheel for changing the forward direction of the sweeper. A top cover for opening or closing the storage space is also provided on the top shell, and a gap is provided on the side of the top shell, and the gap is connected to the top cover to facilitate removing the top cover from the top shell. A battery is also provided in the bottom shell, and a plurality of groups of sensing components are provided around the bottom shell, and the sensing components sense the distance between the sweeper and obstacles. One side of the bottom shell is square.

[0017] Preferably, two groups of fan limit grooves are provided on the bottom shell, and the limit blocks are placed in the fan limit grooves to fix the fan assembly on the bottom shell. The front cover includes an upper front cover and a lower front cover plugged and fixed with the upper front cover. The upper front cover is connected to the top shell by a first clamping structure, and the lower front cover is connected to the bottom shell by a second clamping structure.

[0018] The beneficial effects of the utility model are as follows: a silicone sleeve is provided on the outside of the fan to reduce the noise generated when the fan is working, and an air outlet is provided on the silicone sleeve to facilitate the air outlet when the fan is working. At the same time, the air outlet is extended outward and has a certain height, which can further reduce the noise generated by the fan while discharging air, and the noise reduction effect is better. At the same time, the air guide port and the air inlet are provided with a height difference to prevent dust from directly passing through the air inlet through the air guide port and entering the fan, and the filter cotton provided also absorbs the dust blowing into the air guide port, thereby improving the performance of the fan. At the same time, the cleaning component uses a gear box to increase the speed, which saves the workmanship of the motor and the working efficiency of the cleaning part can also meet the cleaning requirements, saving battery digestion and reducing the working energy consumption of the control panel. Induction components are provided around the sweeper to prevent the sweeper from colliding with obstacles, and one side of the sweeper is provided in a square shape, thereby reducing the cleaning blind spot and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a sweeping machine according to a preferred embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of a sweeping machine in a preferred embodiment of the utility model when viewed from above;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the lower front cover of a preferred embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the upper front cover of a preferred embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the axial structure of the top shell of a preferred embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the axial structure of the top shell of a preferred embodiment of the utility model;

[0026] Figure 7 This is a schematic diagram of the axial structure of the bottom shell of a preferred embodiment of the utility model;

[0027] Figure 8 This is a structural schematic diagram of a sweeping machine (excluding the top shell and the front cover) of a preferred embodiment of the utility model;

[0028] Fig. 9 It is a partial three-dimensional structural schematic diagram of a sweeping machine according to a preferred embodiment of the utility model;

[0029] Fig.10 This is a schematic diagram of the structure of a cleaning component of a preferred embodiment of the utility model;

[0030] Fig.11 This is a schematic diagram of the three-dimensional structure of a fan assembly of a preferred embodiment of the utility model;

[0031] Fig.12 This is a schematic diagram of the exploded structure of a fan assembly of a preferred embodiment of the utility model;

[0032] Fig.13 This is a schematic diagram of the back three-dimensional structure of a fan assembly of a preferred embodiment of the utility model;

[0033] Fig.14 The figure is a schematic cross-sectional structure diagram of a fan assembly according to a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be combined with the technical solution in the embodiments of the utility model for a clear and complete description. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0035] A low-noise fan assembly and a sweeper having the fan assembly according to a preferred embodiment of the utility model; Figure 1-2 and Figure 8-9As shown, it includes a bottom shell 10, and a top shell 11 arranged on the bottom shell, and the bottom shell and the top shell are connected and fixed on one side by a thread and the other side is connected and fixed by a front shell 13. The bottom shell is composed of a circular part and a direction, wherein the main part of the top shell 11 is also circular in design, and the front cover part is mainly square in design. The circular design is more aesthetically pleasing, but it cannot clean corners and other places, so a square part is set to facilitate cleaning corners and other places, and the use scenarios are more abundant. At the same time, in order to avoid the square edge colliding with the wall when moving and damaging the sweeper, multiple groups of sensing components 15 are arranged on the side of the bottom shell, and the distance between the sweeper and the obstacle is sensed by the sensing component to avoid the sweeper hitting the obstacle and causing a malfunction. A cleaning component 17 is arranged on the bottom shell, as well as a dust suction channel 100 and a dust suction port 116 connected to the cleaning component. The garbage and debris cleaned by the cleaning component pass through the dust suction channel and then pass through the dust suction port into the garbage bin 110 for storage. The bottom shell is also provided with a fan assembly 21 connected to the garbage bin. The fan assembly creates negative pressure in the garbage bin, thereby generating air circulation in the dust suction channel to suck the garbage and dust on the cleaning assembly into the garbage bin. The bottom shell is also provided with a control panel 20 for controlling the operation of the fan assembly, and a battery 19 for powering the control panel. The housing is provided with a charging interface 18 connected to the battery for convenient battery charging. Alternatively, the sweeper can be operated by directly connecting the power supply to the control panel through the charging interface without providing a battery. In this case, the working range of the sweeper is relatively limited. In order to facilitate the movement of the sweeper, a roller assembly 16 is provided at the lower end of the bottom shell to control the forward, backward and turning movement of the sweeper, thereby realizing a 360-degree rotation of the sweeper without dead angles for cleaning.

[0036] Specifically, Figure 5-6 As shown, the top shell 11 is provided with a battery compartment 111 for fixing the battery, and a garbage bin 110 for storing the cleaned garbage, and also includes a fan port 115 connected to the garbage bin, and the fan assembly is placed at the fan port to provide negative pressure for the garbage bin. In order to prevent the garbage in the garbage bin from entering the fan, an air guide port 210 is provided between the garbage bin and the fan, and the air guide port and the fan assembly are connected through an air guide channel 210 so that the garbage bin generates negative pressure under the action of the fan assembly, and the garbage attached to the cleaning assembly is sucked into the garbage bin through the dust suction channel 110 for storage. An isolation device such as an isolation net (not shown in the figure) can also be provided between the air guide channel and the garbage bin to prevent garbage from entering the fan assembly and affecting the use of the fan.

[0037] Furthermore, if Figure 11-14As shown, the fan assembly includes a fan 213 and a silicone sleeve 214 sleeved outside the fan, the silicone sleeve is provided with multiple groups of air inlet holes 2140, the fan outlet is connected to a fan box 212, a fan port 2120 is provided on the fan box, and the fan box is connected to the garbage bin through a fan connector 211, so that the air between the garbage bin and the fan box is connected. A sealing ring 216 is provided between the fan box 212 and the fan connector 211 to increase the sealing of the connection, and a filter cotton 217 is provided to prevent dust and the like from entering the fan through the garbage bin and affecting the use of the fan. An air guide port 210 is provided at the upper end of the fan connector, and an air guide cavity 218 is provided between the air guide port and the air inlet. Negative pressure enters the air guide cavity through the air guide port and then enters the fan port, and the air guide port and the fan port are placed between different planes, thereby enhancing the negative pressure effect when the fan is working. At the same time, the staggered arrangement of the air guide port and the fan port can also prevent dust from directly entering the air inlet through the air guide port and then entering the fan. The multiple groups of air inlet holes 2140 on the silicone sleeve extend from the surface of the silicone sleeve along the outer wall to form holes with a certain height, and the negative pressure generated by the fan passes through the air inlet holes to perform negative pressure circulation. And because the air inlet holes are arranged on the surface of the silicone sleeve, it can also produce a certain noise reduction effect, reducing the noise when the fan is working. The silicone sleeve is used for noise reduction in the utility model, and other wrapping sleeves with noise reduction materials can also be used to be arranged on the outside of the fan to reduce the noise when the fan is working. In order to facilitate the installation of the fan assembly, two groups of limit blocks 215 are provided on the surface of the silicone sleeve, and corresponding fan limit grooves 104 are provided on the bottom shell 10 to fix the fan assembly. Fan limit holes 2141 are provided at the bottom of the silicone sleeve, and multiple groups of fan fixing columns 2130 are provided at the bottom of the fan to fix the fan on the silicone sleeve to prevent the fan from shaking.

[0038] Furthermore, if Figure 3-7As shown, the lower front cover 131 is arranged at the front side of the lower end of the bottom shell, and the lower front cover is provided with multiple groups of latch teeth 1310 extending in the vertical direction, and multiple groups of support ribs 1311 are arranged between the latch teeth and the inner wall of the lower front cover, and the bottom shell is provided with a lower flange 101 corresponding to the support ribs, and the lower flange is provided with a latch hole 102 corresponding to the latch teeth, and the latch teeth are inserted into the latch hole to prevent the bottom shell from moving forward and backward relative to the lower front cover, and at the same time, the lower flange is placed on the support ribs, which also reduces the extension height of the lower flange and improves the strength of the bottom shell. The lower front cover surrounds the bottom shell from three sides, of which only one side is completely surrounded, and the other two sides are only partially surrounded. A socket 1312 is also provided on the lower front cover 131, and the upper front cover is arranged above the upper front cover and connected to the upper front cover. A plug post 13000 is provided on the upper front cover corresponding to the socket. The plug post is inserted into the socket, and then the upper front cover and the lower front cover are fixed with screws passing through the socket, which is more convenient for aligning and assembling the lower front cover and the upper front cover. An upper step 1313 is provided on the lower front cover, and a lower step 13002 is correspondingly provided at the lower end of the upper front cover. The step method not only facilitates the assembly of the upper front cover and the lower front cover, but also increases the waterproofness of the product, thereby preventing water stains from entering the interior of the sweeper through the connecting seam when the sweeper is in use and affecting the components of the sweeper. Sealing structures such as sealing rings may also be provided at the connection to increase the sealing of the connection.

[0039] Furthermore, if Figure 3-7 As shown, the upper front cover 130 includes an upper front cover lower part 1300 connected to the lower front cover, and an upper front cover upper part 1301 connected to the top shell 11. The upper front cover upper part and the lower front cover upper part are connected at both ends by a connecting part 1303, so that a hollow part 1302 is formed between the upper front cover upper part and the lower front cover. The upper front cover upper part 1301 is provided with a card slot 13010, and a plurality of groups of ribs 13011 are provided in the card slot, and a limiting area 13013 is formed between every two groups of ribs. A tongue 114 is provided on the top shell 11 corresponding to the limiting area. The tongue is placed in the limiting area and forms a clamping structure with the card slot to connect the top shell with the upper front cover. The locking of the upper front cover and the lower front cover can make the top shell and the bottom shell connected and fixed, which is convenient for the assembly of the product. It should be noted that the width of the limiting area should be the same or substantially the same as the width of the tongue to prevent the top shell from rotating, and also facilitate the alignment during assembly. A support platform 13012 is also provided on the upper part of the upper front cover, a notch 112 corresponding to the support platform is provided on the top shell, and a recess 113 corresponding to the support platform is also provided on the top shell. When the lower front cover is connected to the top shell, the support platform is inserted into the notch and is located at the recess, thereby providing support for the top shell. Due to the presence of the plug-in column 13000, in order to facilitate the connection between the front cover and the bottom shell, an arc-shaped cavity 103 is provided on the bottom shell corresponding to the front cover, and the upper end of the plug-in column should be lower than the top of the arc-shaped cavity, so that the arc-shaped cavity also has a certain limiting effect on the plug-in column, thereby improving the limiting property of the assembly and facilitating assembly. In order to enhance the sensing ability of the sensing component, a sensing component window 13001 is provided on the front cover corresponding to the sensing component, so that the sensing component can directly transmit and receive signals.

[0040] Furthermore, if Figure 1 and Figure 8-9 As shown, in order to facilitate the disposal of garbage in the garbage bin, the garbage bin includes a garbage bin cover 1100 and a top cover 12 arranged on top of the top shell. The top cover and the top shell are detachably connected, and a plurality of slits are arranged on the side of the top shell to facilitate removing the top cover from the top shell. Then, the garbage bin cover can be opened to dispose of the garbage in the garbage bin.

[0041] Furthermore, if Fig.10 As shown, the cleaning assembly 17 includes a cleaning member 172 disposed on the bottom shell, and a motor 170 for driving the cleaning member to rotate. The motor and the cleaning member are driven by a gear box 171, so that the low speed of the motor can drive the cleaning member to rotate at a high speed, thereby improving the cleaning effect. The cleaning member is provided with multiple groups of cleaning wings 1720, which are eccentrically designed to improve the cleaning effect, and the cleaning member is fixed to the bottom shell in the form of a buckle and connected to the gear box, thereby facilitating the replacement of the cleaning member.

[0042] Furthermore, if Figure 2 As shown, the roller assembly 16 includes two sets of driven wheels 160 arranged at the front end of the bottom shell, and two sets of driving wheels 161 arranged at the rear end of the bottom shell. The radius of the driving wheel is larger than that of the driven wheel, and the driven wheel can be driven to move by driving the driving wheel through a motor or other means. The roller assembly also includes a universal wheel 162 arranged on the bottom shell, and the moving direction of the driving wheel is changed by turning the universal wheel, thereby changing the moving direction of the sweeper, so as to realize 360-degree rotation of the sweeper without dead angles.

[0043] It should be understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A low-noise fan assembly, which is used to generate negative pressure in a sweeping machine, and the fan assembly includes a fan and a fan connector connected to the fan, and is connected to the sweeping machine through the fan connector, and the fan connector is provided with an air guide port, characterized in that: The fan also includes a fan box connected to the fan connector, an air inlet is arranged on the fan box, an air circulation channel is formed between the air inlet and the air guide port, a noise reduction component is arranged on the fan jacket, and an air outlet is arranged on the noise reduction component.

2. The fan assembly according to claim 1, characterized in that: The noise reduction component is a noise reduction sleeve that is sleeved on the outside of the fan. A wiring hole is provided at the bottom of the noise reduction sleeve, and the bottom connecting wire of the fan is connected through the wiring hole.

3. The fan assembly according to claim 2, characterized in that: The noise reduction sleeve is provided with a plurality of groups of air outlet holes, and a limiting block is provided on the side of the noise reduction sleeve, and the limiting block fixes the fan assembly in the sweeping machine.

4. The fan assembly according to claim 3, characterized in that: The air outlet hole extends outward from the surface of the noise reduction sleeve to form a silencer hole with a height, and the airflow in the fan is discharged through the silencer hole, and the silencer hole reduces the sound volume when the fan is working.

5. The fan assembly according to claim 1, characterized in that: Filter cotton is arranged in the air circulation channel, and the air guide port and the air inlet are placed at different horizontal planes to prevent dust from entering the air inlet through the air guide port.

6. A low-noise sweeper, comprising a bottom shell, a cleaning assembly disposed on the bottom shell for cleaning, and a control panel connected to the cleaning assembly, characterized in that: The bottom shell is also provided with a low-noise fan assembly as described in any one of claims 1-5 connected to the control panel, and a storage space for storing clean objects connected to the fan assembly, the storage space is connected to the cleaning assembly through a dust suction channel, the fan assembly is connected to the storage space and generates negative pressure in the storage space, and the cleaning assembly transports the cleaned debris to the storage space through the dust suction channel under the action of negative pressure.

7. The sweeping machine according to claim 6, characterized in that: The bottom shell and one side of the top shell are fixed by clamping the front cover. The cleaning assembly includes a motor and a cleaning member driving the motor to rotate. The cleaning member is used for cleaning.

8. The sweeping machine according to claim 7, characterized in that: A gear box is arranged between the motor and the cleaning member, and the gear box makes the rotation speed of the cleaning member higher than the rotation speed of the motor. The cleaning member is provided with a plurality of groups of cleaning wings, and the cleaning wings are eccentric.

9. The sweeping machine according to claim 7, characterized in that: A roller assembly is also provided at the bottom of the sweeper, and the roller assembly includes a driving wheel and a driven wheel, as well as a universal wheel for changing the forward direction of the sweeper. A top cover for opening or closing the storage space is also provided on the top shell, and a gap is provided on the side of the top shell, and the gap is connected to the top cover to facilitate removing the top cover from the top shell. A battery is also provided in the bottom shell, and multiple groups of sensing components are provided around the bottom shell, and the sensing components sense the distance between the sweeper and obstacles. One side of the bottom shell is square.

10. The sweeping machine according to claim 9, characterized in that: Two groups of fan limit grooves are arranged on the bottom shell, and the limit blocks are placed in the fan limit grooves to fix the fan assembly on the bottom shell. The front cover includes an upper front cover and a lower front cover plugged and fixed with the upper front cover. The upper front cover is connected to the top shell by a first clamping structure, and the lower front cover is connected to the bottom shell by a second clamping structure.

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