Air guide device for sweeper and sweeper with high cleaning efficiency

Abstract

The utility model relates to an air guide device for a sweeper and the sweeper with high cleaning efficiency, the air guide device comprises a connecting piece connected with a power assembly, the connecting piece is provided with an air guide port, and the air guide device comprises an air direction groove communicated with the air guide port and an air guide cavity communicated with a garbage bin. The air direction groove and the air guide cavity are connected through multiple sets of air guide channels for air circulation, and air circulation generated by the power assembly enters the air direction groove through the air guide port, changes the air circulation direction and enters the air guide channels. The air direction groove is formed in the first air guide channel, the independent air direction channel is arranged at the lower end of the air direction groove and communicates with the first air guide channel, and therefore the air circulation direction is changed, and the air circulation speed is increased. And the circulation speed of air entering the air guide cavity is increased, negative pressure is formed in the garbage bin, dust cleaned by the cleaning assembly is sucked into the garbage bin, and the cleaning efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the field of air guiding devices and floor sweepers for floor sweepers, in particular to an air guiding device for a floor sweeper and a floor sweeper with high cleaning efficiency. Background Art

[0002] In recent years, with the development of social economy and the improvement of living standards, home cleaning has gradually entered the era of intelligence. Among them, the floor sweeper is a cleaning machine suitable for floor cleaning and taking away garbage, dust, etc. from the site, with the advantages of environmental protection, energy saving, high efficiency, etc. The cleaning concept of replacing manual labor with machinery has been deeply rooted in people's hearts. At the same time, the floor sweeper is a device configured to perform cleaning tasks while moving in any area without user control, and is usually used to clean the garbage and stains on the ground. In life, it is necessary to mop the floor frequently to ensure indoor cleanliness, especially in large public places such as stations. Manual sweeping requires a large amount of work. Existing automatic floor sweepers are basically driven by electricity and have a fan to generate negative pressure for cleaning to replace manual sweeping. However, the wind speed of existing floor sweepers is small when in use. Too small wind speed will directly affect the mopping efficiency and cleaning degree. At the same time, since the negative pressure generated by the fan is directly connected to the garbage bin, only an isolation net is usually set at the connection. Although the isolation net can block large particle garbage, dust may still pass through the isolation net and enter the fan through the air guiding channel, thus affecting the performance of the fan.

[0003] Chinese Patent Publication No. CN218852591U relates to a cleaning module for a cleaning machine and a cleaning machine. A cleaning module for a cleaning machine includes a housing with an air guiding channel extending along the left-right direction inside, and a dirt suction port with an opening facing downwards and communicating with the air guiding channel at the bottom; a rotary brush rotatably arranged in the air guiding channel, including a roller shaft extending along the left-right direction and at least two brush strips arranged at intervals along the circumferential direction of the roller shaft, and the brush strips extend along the length direction of the roller shaft; a water storage box located above the housing, and the inner cavity is in fluid communication with the air guiding channel; a water splashing strip is arranged between adjacent two brush strips of the rotary brush, the water splashing strip extends along the length direction of the brush strip, and the width of the water splashing strip along the radial direction of the roller shaft is smaller than the width of the brush strip along the radial direction of the roller shaft. During the rotation of the rotary brush, the water splashing strip disperses the water in the length direction of the air guiding channel, which can ensure that the water on the rotary brush is more evenly distributed and improve the cleaning effect. This patent only improves the cleaning efficiency from the cleaning rotary brush. However, when the air flow speed generated by the fan is small, it is also impossible to completely suck the cleaned dust, etc. into the water storage box and the dust collection chamber. And simply increasing the wind speed of the fan to improve the cleaning efficiency not only has higher requirements for the performance of the fan, but also requires a large amount of working energy consumption.

[0004] Chinese patent publication number CN217137951U discloses a sweeping robot, including a sweeping robot body and an air guide component, wherein a dust suction port is provided at the bottom of the sweeping robot body, the air guide component is provided on the sweeping robot body, the air guide component is hollow inside to form an air guide channel, the air guide component is provided with an air inlet and an air outlet respectively connected to the air guide channel, the air outlet is connected to the dust suction port, and the air inlet faces the forward direction of the sweeping robot body. The utility model can improve the dust collection efficiency. No isolation member is provided between the chamber and the fan assembly of the patent, and dust or granular objects can easily enter the fan and affect the performance and service life of the fan. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing sweeping machine has a low wind speed when in use, which will directly affect the mopping efficiency and cleaning degree; at the same time, because the negative pressure generated by the fan is directly connected to the garbage bin, an isolation net is often only set at the connection. Although the isolation net can block large particles of garbage, dust may still pass through the isolation net and enter the fan through the air guide channel, thereby affecting the performance of the fan. In view of the above-mentioned defects of the prior art, an air guide device for a sweeping machine and a sweeping machine with high cleaning efficiency are provided.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A wind guide device for a sweeping machine is constructed, the wind guide device is used to connect the garbage bin of the sweeping machine with a power component, and transmit the negative pressure generated by the power component to the garbage bin through the wind guide device for dust collection and cleaning. The wind guide device includes a connecting piece connected to the power component, and an air guide port is arranged on the connecting piece. The wind guide device includes a wind direction slot connected to the air guide port, and an air guide cavity for air circulation with the garbage bin. The wind direction slot and the air guide cavity are connected through multiple groups of air guide ducts for air circulation. The air circulation generated by the power component enters the wind direction slot through the air guide port, and then changes the air circulation direction and enters the air guide duct.

[0008] Preferably, the air guide duct includes a first air guide duct connected to a wind direction slot, and the wind direction slot extends toward the first air guide duct and is provided with multiple groups of baffle walls to form multiple groups of wind direction channels, and the baffle walls separate the multiple groups of wind direction channels and are independent of each other and do not affect each other when air flows. After passing through the wind direction slot, the air enters the wind direction channel and changes its wind direction under the action of the baffle walls to enter the first air guide duct.

[0009] Preferably, the air guide duct further includes a second air guide duct connected to the first air guide duct, and the air flows through the first air guide duct, enters the second air guide duct, and then enters the air guide cavity.

[0010] Preferably, the first air duct is frustum-shaped, with the larger area side connected to the first air duct and larger than the area of the first air duct, the smaller area side connected to the air guide cavity, and the lowermost end of the first air duct extending into the second air duct.

[0011] Preferably, multiple groups of vertical grooves are provided on the peripheral wall of the first air duct, and the vertical grooves increase the area of the first air duct and the air flow velocity.

[0012] Preferably, an air flow port is provided on the power device, and the air flow port and the air guide port are arranged offset in the vertical direction to form a height difference.

[0013] Construct a floor sweeper with high cleaning efficiency, including a bottom shell, a cleaning component arranged on the bottom shell for cleaning, a control board connected to the cleaning component, a power component connected to the control board and arranged in the bottom shell, and a dust bin for storing cleaning waste connected to the power component. The dust bin is connected to the cleaning component through a dust suction channel. The power component is communicated with the storage space to generate negative pressure in the storage space. The cleaning component conveys the cleaned sundries to the storage space through the dust suction channel under the action of negative pressure. An air guide device as described above is arranged between the power component and the dust bin for air circulation.

[0014] Preferably, a top shell is further provided on the bottom shell. The front cover includes an upper front cover and a lower front cover inserted and fixed to the upper front cover. The upper front cover is connected to the top shell through a first clamping structure, and the lower front cover is connected to the bottom shell through a second clamping structure. A groove is provided on the upper front cover, and at least one set of tongues is provided on the top shell corresponding to the groove. The tongues in the groove enable the front shell to move only in the direction perpendicular to the top shell. At least one set of teeth is provided on the lower front cover, and a clamping hole is provided on the bottom shell corresponding to the teeth. The teeth in the clamping hole enable the bottom shell to move only in the direction perpendicular to the bottom shell. An insertion hole is provided on the lower front cover, and an insertion post inserted into the insertion hole is provided on the upper front cover.

[0015] Preferably, the cleaning component includes a motor and a cleaning part for driving the motor to rotate. The cleaning part is used for cleaning work. A roller assembly is further provided at the bottom of the floor sweeper. The roller assembly includes a driving wheel, a driven wheel, and a universal wheel for changing the forward direction of the floor sweeper. A top cover for opening or closing the storage space is further provided on the top shell. A gap is provided on the side of the top shell, and the gap is connected to the top cover to facilitate taking out the top cover from the top shell. A battery is further provided in the bottom shell, and multiple groups of induction components are provided around the bottom shell. The induction components sense the distance between the floor sweeper and obstacles. One side of the bottom shell is square.

[0016] Preferably, a gearbox is arranged between the motor and the cleaning part. The gearbox enables the rotational speed of the cleaning part to be higher than that of the motor. Multiple groups of cleaning fins are provided on the cleaning part, and the cleaning fins are eccentric.

[0017] The beneficial effects of the present utility model are as follows: By providing a wind direction groove on the first air duct, and providing an independent wind direction channel at the lower end of the wind direction groove to communicate with the first air duct, the air flow direction is changed and the air flow speed is increased. A frustum-shaped second air duct is provided below the first air duct, so that the air flow in the first air duct completely passes through the second air duct and then enters the air guide cavity, and the air flow speed entering the air guide cavity is mentioned. Finally, a negative pressure is formed in the dust bin to suck the dust cleaned by the cleaning component into the dust bin, with higher cleaning efficiency. And because the air flow direction is changed multiple times, it also avoids dust passing through the isolation member and entering the air guide channel and then into the fan, which affects the service life and use efficiency of the fan. The misalignment setting of the air guide port and the fan port in the vertical direction also has a certain protective effect on the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will further illustrate the present utility model in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0019] Figure 1 Schematic perspective view of a floor sweeper according to a preferred embodiment of the present utility model;

[0020] Figure 2 Schematic bottom perspective view of a floor sweeper according to a preferred embodiment of the present utility model;

[0021] Figure 3 Schematic perspective view of the lower front cover according to a preferred embodiment of the present utility model;

[0022] Figure 4 Schematic perspective view of the upper front cover according to a preferred embodiment of the present utility model;

[0023] Figure 5 Schematic axonometric view of the top shell according to a preferred embodiment of the present utility model;

[0024] Figure 6 Schematic axonometric view of the top shell according to a preferred embodiment of the present utility model;

[0025] Figure 7 Schematic axonometric view of the bottom shell according to a preferred embodiment of the present utility model;

[0026] Figure 8 Schematic view of the structure of the floor sweeper (removing the top shell and the front cover) according to a preferred embodiment of the present utility model;

[0027] Figure 9Schematic diagram of partial three-dimensional structure of a floor sweeper according to a preferred embodiment of the present utility model;

[0028] Figure 10 Schematic diagram of the structure of a cleaning assembly according to a preferred embodiment of the present utility model;

[0029] Figure 11 Schematic diagram of the three-dimensional structure of a garbage bin and a blower according to a preferred embodiment of the present utility model;

[0030] Figure 12 Schematic diagram of the three-dimensional structure of a garbage bin according to a preferred embodiment of the present utility model;

[0031] Figure 13 In a preferred embodiment of the present utility model Figure 12 Cross-sectional schematic diagram of the garbage bin in;

[0032] Figure 14 Schematic diagram of the structure of a garbage bin cover according to a preferred embodiment of the present utility model;

[0033] Figure 15 Axonometric structure schematic diagram of a garbage bin according to a preferred embodiment of the present utility model;

[0034] Figure 16 Bottom view structure schematic diagram of a garbage bin according to a preferred embodiment of the present utility model;

[0035] Figure 17 Schematic diagram of the three-dimensional structure of a second air duct according to a preferred embodiment of the present utility model. Detailed implementation manners

[0036] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0037] A wind guiding device for a floor sweeper and a floor sweeper with high cleaning efficiency according to a preferred embodiment of the present utility model; as Figure 1-2 and Figure 8-9As shown in the figure, it includes a bottom shell 10 and a top shell 11 provided on the bottom shell. One side of the bottom shell and the top shell is fixedly connected by threads, and the other side is fixedly connected by a front shell 13. The bottom shell consists of a partial circle and a direction. The main part of the top shell 11 is also circular in design, while the front cover part is mainly square in design. The circular design has better aesthetics, but it cannot clean corners and other places. Therefore, a square part is provided to facilitate cleaning corners and other places, making the usage scenarios more diverse. At the same time, to prevent the square edge from colliding with the wall and damaging the sweeper when moving, multiple groups of induction components 15 are provided on the side of the bottom shell. The distance between the sweeper and the obstacle is sensed through the induction components to prevent the sweeper from hitting the obstacle and causing malfunctions. A cleaning component 17 is provided 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 enter the garbage bin 110 through the dust suction port for storage. A fan 21 connected to the garbage bin is also provided on the bottom shell. The rotation of the fan creates a negative pressure in the garbage bin, thereby generating air circulation in the dust suction channel to suck the garbage and dust on the cleaning component into the garbage bin. A control board 20 for controlling the operation of the fan is also provided on the bottom shell, as well as a battery 19 for powering the control board. A charging interface 18 connected to the battery is provided on the housing to facilitate charging the battery. It is also possible to directly connect the power supply to the control board through the charging interface without setting a battery to make the sweeper work. At this time, the working range of the sweeper is relatively limited. 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 and backward movement and turning of the sweeper, thereby realizing the 360-degree non-dead-angle rotation of the sweeper for cleaning work.

[0038] Specifically, as Figure 11-13 shown, the garbage bin 22 includes a garbage bin bottom shell 222 provided on the bottom shell. A dust suction port 220 is provided on the garbage bin. The garbage can is connected to the cleaning component through a dust suction channel. The dust suction channel includes a dust suction channel cover 23 provided on the bottom shell. A sealing ring can be provided between the dust suction channel cover and the bottom shell to increase the sealing performance. A dust suction channel is formed between the dust suction channel cover and the bottom shell, and the garbage bin is connected to the cleaning component through the dust suction channel, and the garbage and dust cleaned by the cleaning component enter the garbage bin through the dust suction channel. The garbage bin also includes a garbage bin cover 220 covering the upper part of the garbage bin. The garbage bin 22 is connected to the fan 21 through a fan connecting piece 211. A wind guiding channel is provided between the fan connecting piece and the garbage bin to make the negative pressure generated by the fan enter the garbage bin through the wind guiding channel, and then suck the garbage cleaned by the cleaning component into the garbage bin through the dust suction channel. To prevent garbage or dust from entering the wind guiding channel, measures such as a separation net can be set between the wind guiding channel and the garbage bin for isolation. At the same time, the fan outlet and the air guiding port of the fan are arranged in a vertical offset, which further prevents dust and the like from entering the fan.

[0039] Furthermore, as Figure 13-17As shown in the figure, the air guiding channel includes an air guiding port 210 communicated with the fan connecting piece. Multiple groups of first air guiding ducts 224 are arranged in the air guiding port. The lower end of the first air guiding duct is connected to a second air guiding duct 225, and the second air guiding duct is connected to an air guiding cavity 226. The isolation component is arranged at the common part of the garbage bin and the air guiding cavity. The negative pressure generated by the fan enters the garbage bin through the air guiding cavity and forms a negative pressure in the garbage bin, so as to suck dust or garbage into the garbage bin and clean the ground clean.

[0040] Furthermore, as Figure 13-17 shown in the figure, in order to enhance the intensity of the negative pressure, a wind direction groove 221 is arranged above the first air guiding duct 224. The wind direction groove is connected to the air guiding port 210, and multiple groups of wind direction channels 2210 are arranged on the garbage bin cover corresponding to the wind direction groove. Each group of wind direction channels corresponds to the first air guiding duct 224, and a retaining wall 2211 is arranged around the wind direction channel. The retaining wall makes multiple groups of wind direction channels independent of each other. The negative pressure generated by the fan enters the wind direction channel after passing through the wind direction groove, and moves downward under the action of the retaining wall 2211 and enters the first air guiding duct 224, thereby enhancing the wind speed. And because the wind direction channels are all independent of each other, the influence of the wind speed on each other is avoided, making the negative pressure effect of the fan more obvious. The lower end of each group of first air guiding ducts is provided with a second air guiding duct 225. The second air guiding duct is in a frustum shape, and its larger area side corresponds to the first air guiding duct, and its smaller area side is connected to the air guiding cavity, so that the wind speed is further enhanced after the first air guiding duct enters the second air guiding duct. And because the upper radius of the second air guiding duct is larger than the radius of the first air guiding duct, the wind in the first air guiding duct can also completely enter the second air guiding duct, and the wind speed is increased at the lower part of the second air guiding duct and then enters the air guiding cavity, making the negative pressure effect further enhanced, and then improving the further cleaning efficiency. Multiple vertical grooves 2240 are formed in the first air guiding duct in the vertical direction. The vertical grooves increase the air volume of the wind entering the first air guiding duct. Compared with the traditional circular air duct, more wind can enter, and the vertical grooves can also increase the wind speed to a certain extent, and the cleaning effect is better. In the present utility model, in order to improve the air circulation effect, multiple groups of first air guiding ducts are arranged side by side in two rows, so that the air circulation between each group of first air guiding ducts does not affect each other. It should be noted that in this application, the two rows of first air guiding ducts are arranged in parallel, and it is also possible to choose non-parallel arrangement or staggered arrangement, or arrange three rows, etc. For the air circulation between the first air guiding ducts does not affect each other, as long as only the arrangement design of the first air guiding ducts is changed and no substantial change is generated, it should fall within the protection scope of the present utility model.

[0041] Furthermore, as Figure 3-7As shown in the figure, the lower front cover 131 is arranged on the front side of the lower end of the bottom shell, and multiple groups of teeth 1310 extending in the vertical direction are arranged on the lower front cover. Multiple groups of support ribs 1311 are arranged between the teeth and the inner wall of the lower front cover. A lower flange 101 corresponding to the support ribs is arranged on the bottom shell, and a card hole 102 corresponding to the teeth is arranged on the lower flange. The teeth are inserted into the card holes to prevent the bottom shell from moving back and forth relative to the lower front cover. At the same time, the lower flange placed on the support ribs also reduces the extension height of the lower flange, improving the strength of the bottom shell. The lower front cover wraps the bottom shell from three sides, with only one side completely wrapped and the other two sides only partially wrapped. A jack 1312 is also arranged on the lower front cover 131. The upper front cover is arranged above the upper front cover and is connected to the upper front cover. An insertion post 13000 corresponding to the jack is arranged on the upper front cover. The upper front cover is fixed to the lower front cover by inserting the insertion post into the jack and then using a screw to pass through the jack, which is more convenient for the alignment and assembly of the lower front cover and the upper front cover. An upper step 1313 is arranged on the lower front cover, and a lower step 13002 corresponding to the lower end of the upper front cover is arranged. The use of steps not only facilitates the assembly of the upper front cover and the lower front cover, but also increases the waterproofness of the product, preventing water stains from entering the inside of the sweeper through the connection seam during the use of the sweeper and affecting the components of the sweeper. A sealing structure such as a sealing ring can also be arranged at the connection to increase the sealing performance of the connection.

[0042] Furthermore, as Figure 3-7 shown, the upper front cover 130 includes a lower part 1300 of the upper front cover connected to the lower front cover and an upper part 1301 of the upper front cover connected to the top shell 11. The two ends of the upper part and the lower part of the upper front cover are connected by a connecting part 1303, forming a hollow part 1302 between the upper part and the lower part of the upper front cover. A card slot 13010 is arranged on the upper part 1301 of the upper front cover, and multiple groups of ribs 13011 are arranged in the card slot. A limiting area 13013 is formed between every two groups of ribs. A convex tongue 114 corresponding to the limiting area is arranged on the top shell 11. The convex tongue is placed in the limiting area and forms a clamping structure with the card slot to connect the top shell and the upper front cover. Since the upper front cover and the lower front cover are locked, the top shell and the bottom shell can be connected and fixed, facilitating the assembly of the product. It should be noted that the width of the limiting area should be the same as or basically the same as the width of the convex tongue to prevent the top shell from rotating and also facilitate alignment during assembly. A support platform 13012 is also arranged on the upper part of the upper front cover, and a notch 112 corresponding to the support platform is arranged on the top shell. A concave part 113 corresponding to the support platform is also arranged on the top shell. When the lower front cover is connected to the top shell, the support platform is inserted into the notch and located at the concave part, providing support force for the top shell. Due to the existence of the insertion post 13000, in order to facilitate the connection between the front cover and the bottom shell, an arc-shaped concave cavity 103 corresponding to the front cover is arranged on the bottom shell. The upper end of the insertion post should be lower than the top end of the arc-shaped concave cavity, so that the arc-shaped concave cavity also has a certain limiting effect on the insertion post, improving the limiting performance of the assembly and making the assembly more convenient. In order to enhance the sensing ability of the sensing component, a sensing component window 13001 corresponding to the sensing component is arranged on the front cover, enabling the sensing component to directly transmit and receive signals.

[0043] Furthermore, if 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 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 are connected through an air guide channel 210 so that the garbage bin generates negative pressure under the action of the fan, and the garbage attached to the cleaning component 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 and affecting the use of the fan.

[0044] 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.

[0045] Furthermore, if Figure 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.

[0046] 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.

[0047] It should be understood that the present utility model is described by some embodiments. Those skilled in the art will know that, without departing from the spirit and scope of the present utility model, various changes or equivalent substitutions can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model 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 utility model.

Claims

1. An air guide device for a sweeping machine, the air guide device is used to connect the garbage bin of the sweeping machine with a power assembly, and transmit the negative pressure generated by the power assembly to the garbage bin through the air guide device for dust collection and cleaning, the air guide device includes a connecting piece connected to the power assembly, an air guide port is arranged on the connecting piece, the air guide device includes a wind direction slot connected to the air guide port, and an air guide cavity for air circulation with the garbage bin, characterized in that: The wind direction slots and the air guide cavity are connected through a plurality of groups of air guide ducts for air circulation. The air generated by the power assembly enters the wind direction slots through the air guide ports and then changes the air circulation direction to enter the air guide ducts.

2. The air guide device according to claim 1, characterized in that: The air guide duct includes a first air guide duct connected to a wind direction groove, and the wind direction groove is extended toward the first air guide duct to form a plurality of wind direction channels. The baffle walls separate the plurality of wind direction channels and make them independent of each other and do not affect each other when air flows. After passing through the wind direction groove, the air enters the wind direction channel and changes its wind direction under the action of the baffle walls to enter the first air guide duct.

3. The air guide device according to claim 2, characterized in that: The air guide channel also includes a second air guide channel connected to the first air guide channel. The air flows through the first air guide channel, enters the second air guide channel, and then enters the air guide cavity.

4. The air guide device according to claim 3, characterized in that: The first air guide channel is truncated cone-shaped, and the side with a larger area is connected to the first air guide channel and is larger than the first air guide channel, and the side with a smaller area is connected to the air guide cavity, and the lowermost end of the first air guide channel extends into the second air guide channel.

5. The air guide device according to claim 2, characterized in that: The peripheral wall of the first air guide channel is provided with a plurality of groups of vertical grooves, and the vertical grooves increase the area of ​​the first air guide channel and increase the air circulation speed.

6. The air guide device according to claim 5, characterized in that: The power device is provided with an air circulation port, and the air circulation port and the air guide port are staggered in the vertical direction to form a height difference.

7. A high cleaning efficiency sweeper, comprising a bottom shell, a cleaning assembly arranged on the bottom shell for cleaning, a control panel connected to the cleaning assembly, a power assembly connected to the control panel, and a garbage bin for storing cleaned objects connected to the power assembly, the garbage bin is connected to the cleaning assembly through a dust suction channel, the power assembly is connected to a storage space and generates negative pressure in the storage space, the cleaning assembly transports cleaned debris to the storage space through the dust suction channel under the action of negative pressure, and is characterized in that: An air guide device as described in any one of claims 1 to 6 is arranged between the power assembly and the garbage bin for air circulation.

8. The sweeping machine according to claim 7, characterized in that: A top shell is also provided on the bottom shell, and 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 and the top shell are connected by a first clamping structure, and the lower front cover and the bottom shell are connected by a second clamping structure, the upper front cover is provided with a groove, and at least one group of tongues are provided on the top shell corresponding to the groove, and the tongues enable the front shell to move only in a direction perpendicular to the top shell in the groove, at least one group of latch teeth are provided on the lower front cover, and latch holes are provided on the bottom shell corresponding to the latch teeth, and the latch teeth in the latch holes enable the bottom shell to move only in a direction perpendicular to the bottom shell, the lower front cover is provided with a plug hole, and the upper front cover is provided with a plug column inserted into the plug hole.

9. The sweeping machine according to claim 8, characterized in that: The cleaning component includes a motor and a cleaning part that drives the motor to rotate, and the cleaning part is used for cleaning. A roller component is also provided at the bottom of the sweeper, and the roller component includes a driving wheel and a driven wheel, and a universal wheel that changes 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 the removal of 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: 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.

Images