Shifting plate type leaf sweeping equipment

Abstract

The invention provides shifting plate type leaf sweeping equipment, and relates to the field of sweeping equipment, the shifting plate type leaf sweeping equipment comprises a walking mechanism and a machine shell with a cavity structure, an inlet is formed in the bottom of the machine shell, an outlet is formed in the rear side of the machine shell, and the inlet is close to the ground in a working state to serve as a suction port; the material storage structure is connected to the outlet, and ventilation meshes are formed in the material storage structure; the shifting plate is arranged in an inner cavity of the machine shell and rotationally connected with the machine shell through a rotating shaft, and the rotating shaft is connected with the power part. In the working state, the inlet is close to the ground to serve as a suction port, the shifting plate rotates along with the rotating shaft to form the pressure difference between the inner cavity of the machine shell and the inlet, and meanwhile centrifugal throwing force for throwing swept objects sucked into the inlet to the outlet is formed to serve as power for sucking materials through the inlet, and adsorption power is formed to be front. According to the working principle, leaf adsorption can be completed under the small air volume, and raised dust is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and particularly relates to a paddle-type leaf cleaning equipment. Background Art

[0002] In urban environmental sanitation cleaning work, the cleaning of leaves, paper sheets, etc. is a common task. Currently, the main machine cleaning method uses street sweepers, which generally have the following problems: The current cleaning method of the sweeper is to use a suction port close to the ground to suck leaves into the storage box under the action of a negative pressure fan, and at the same time, a filter element is configured on the suction pipeline to avoid excessive dust. Among them, the negative pressure fan of the existing technical structure is connected to the middle or rear section of the suction pipeline.

[0003] Based on this situation, in the prior art, if it is desired to achieve negative pressure adsorption of leaves through the suction head, a certain air volume needs to be ensured. If the air volume is too small, the effect of adsorbing leaves will be affected. Although a large air volume has a good adsorption effect on leaves, during the operation process, light objects such as leaves or paper sheets are easily adsorbed on the filter element and cover the filter element. Moreover, even if the filter element is backblown or knocked, it is not easy for the leaves or paper sheets to fall off, which will cause a significant reduction in the air volume at the front negative pressure adsorption port, and thus the suction force decreases, affecting the adsorption of leaves and the suction and cleaning effect deteriorates. Therefore, it is necessary to frequently stop the machine to clean the filter element, which affects the work efficiency. If the filter element structure is not adopted, although it can avoid the negative impact of leaves covering the filter element on the air volume under a large air volume, the negative pressure adsorption of a large air volume will bring very serious dust problems.

[0004] Due to the above-mentioned many problems existing in machine cleaning, as is well known, for the current cleaning of leaves in cities, even in some large cities, the cleaning of leaves still relies on manual cleaning, with a large workload and low efficiency.

[0005] Therefore, how to overcome the contradictions in the above-mentioned technical problems, that is, to ensure the cleaning effect of leaves while avoiding serious dust problems, is the technical problem to be solved by this application. Summary of the Invention

[0006] The present invention provides a paddle-type leaf cleaning equipment for the above-mentioned problems existing in the prior art. By setting a paddle structure at a specific position, the use of a filter element is avoided, and while achieving a good leaf cleaning effect, serious dust can be avoided.

[0007] The technical solution for the present invention to solve the above-mentioned technical problems is as follows: A paddle-type leaf cleaning equipment, which can be a hand-held type or a ride-on type. It includes a traveling mechanism, and is characterized in that it further includes A machine shell with a cavity structure, the bottom of which is provided with an inlet communicating with the inner cavity, and the rear side of which is provided with an outlet communicating with the inner cavity. The inlet is close to the ground during the working state and serves as a suction port. A storage structure is connected to the outlet, and the storage mechanism is provided with breathable meshes. A deflector plate is arranged in the inner cavity of the housing. The deflector plate is rotationally connected to the housing through a rotating shaft, and the rotating shaft is connected to a power unit for driving its rotation. As the deflector plate rotates with the rotating shaft, a pressure difference is formed between the inner cavity of the housing and the inlet, and at the same time, a centrifugal throwing force is formed to throw the cleaning objects sucked through the inlet towards the outlet.

[0008] Further, the cross-section of the inner cavity of the housing is circular to adapt to the rotation trajectory of the deflector plate with the rotating shaft, and the outlet is arranged in the tangential direction of the housing.

[0009] Alternatively, there are two housings, which are arranged left and right. The two housings intersect and the cross-section of the inner cavity is in an "8" shape. The two housings share the same outlet at the intersection and are connected to the guide pipe.

[0010] Further, the deflector plate or a part of the deflector plate forms a preset angle with the horizontal plane.

[0011] In one embodiment of the present invention, the deflector plate is a strip-shaped plate structure, and the side edge thereof is bent upward to form an inclined surface.

[0012] In one embodiment of the present invention, the deflector plate is an inclined plate structure.

[0013] In another embodiment of the present invention, the side edge of the deflector plate is twisted upward by a preset angle.

[0014] Further, a preset distance is left between the bottom end of the deflector plate and the inlet.

[0015] Further, the housing is connected to the traveling mechanism through a lifting mechanism for adjusting the height of the inlet relative to the ground.

[0016] Further, the deflector plate type leaf cleaning device further includes a secondary cleaning brush arranged on the front side of the frame, specifically a disk-shaped cleaning brush, which is connected to the housing through a liftable bracket.

[0017] The beneficial effects of the present invention are as follows: The present invention is provided with a casing having an inner cavity, and an inlet is provided at the bottom thereof as a material suction port. A rotatable baffle structure is provided in the inner cavity of the casing, above the inlet and close to the inlet. In the working state, the inlet is close to the ground as the material suction port. The baffle rotates with the rotating shaft to form a pressure difference between the inner cavity of the casing and the inlet, and at the same time forms a centrifugal throwing force that throws the cleaning objects sucked into the inlet towards the outlet, which serves as the power for sucking the materials through the inlet, forming a preposition of the adsorption power. Under this working principle, it is possible to complete the adsorption of leaves with a smaller air volume, that is, compared with the prior art under the premise of the same leaf adsorption effect, the required air volume is greatly reduced. It can not only achieve a good leaf cleaning effect, but also does not use a filter element, and the reduction of the required air volume for adsorption also greatly reduces the serious dust problem caused by large-air-volume adsorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view structural schematic diagram of Embodiment 1 of the present invention; Figure 2 is Figure 1 the sectional view structural schematic diagram; Figure 3 is the top view structural schematic diagram of Embodiment 1 of the present invention; Figure 4 is the bottom view structural schematic diagram of Embodiment 1 of the present invention; Figure 5 is the sectional view structural schematic diagram of Embodiment 1 of the present invention; Figure 6 is the connection structural schematic diagram of the baffle and the power unit of Embodiment 1 of the present invention; Figure 7 、 Figure 8 is the baffle structural schematic diagram in other embodiments of the present invention; Figure 9 、 Figure 10 is the connection structural schematic diagram of the traveling mechanism and the lifting mechanism of Embodiment 1 of the present invention; Figure 11 is the sectional view structural schematic diagram of the control lever of Embodiment 1 of the present invention; Figure 12 is the three-dimensional structural schematic diagram of Embodiment 2 of the present invention; Figure 13 is the front view structural schematic diagram of Embodiment 2 of the present invention; Figure 14 is the top view structural schematic diagram of Embodiment 2 of the present invention; Figure 15 is the bottom view structural schematic diagram of Embodiment 2 of the present invention; Figure 16 is the sectional view structural schematic diagram of Embodiment 2 of the present invention; In the figure: 1. Frame, 21. Armrest, 22. Driver's seat, 3. Housing, 31. Inlet, 32. Outlet, 33. Feeding pipe, 4. Material storage mechanism, 41. Mesh, 5. Limiting wheel, 6. Power unit, 61. Rotating shaft, 7. Paddle, 71. Inclined surface, 8. Disk cleaning brush, 81. Four-link lifting bracket, 91. Traveling wheel, 911. Front wheel, 912. Rear wheel, 92. Wheel axle, 101. Control lever, 102. Link, 103. Front wheel frame, 104. Rear wheel frame, 105. Adjusting plate, 106. Connecting plate, 107. Push rod, 108. Elastic member, 109. Fastening member, 110. Connecting member, 111. Hinge seat, 112. Card slot. Detailed implementation mode

[0019] The principles and features of the present invention will be described below. The illustrated embodiments are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0020] Embodiment 1 As Figures 1 - 6 shown, the paddle-type leaf cleaning device in this embodiment is a hand-held type, which includes a traveling mechanism and an armrest 21 arranged at the rear side of the frame 1. The traveling mechanism in this embodiment is a traveling wheel 91, including a front wheel 911 and a rear wheel 912. The paddle-type leaf cleaning device further includes: A housing 3 with a cavity structure, the bottom of which is provided with an inlet 31 communicating with the inner cavity, and the rear side of which is provided with an outlet 32 communicating with the inner cavity. The inlet 31 is close to the ground as a material suction port in the working state; A material storage mechanism 4, connected to the outlet 32. The material storage mechanism 4 in this embodiment is a storage bag with breathable mesh 41, that is, a mesh bag structure. In other embodiments, a storage box structure with breathable mesh 41 opened on the side wall can also be used; A power unit 6, arranged above the housing 3. The output shaft of the power unit 6 is connected to the rotating shaft 61 and extends into the inner cavity of the housing 3 through the top. The power unit 6 can adopt existing technical structures such as gasoline engines, drive motors or hydraulic motors; A paddle 7, arranged in the inner cavity of the housing 3. A preset distance is left between the bottom end of the paddle 7 and the inlet 31. The paddle 7 is fixedly connected coaxially with the rotating shaft 61, and is used to form a pressure difference between the inner cavity of the housing 3 and the inlet 31 as the paddle 7 rotates with the rotating shaft 61, and at the same time form a centrifugal throwing force to throw the sucked cleaning objects towards the outlet 32, so as to form a wrapping effect on the leaves and be able to complete the cleaning and collection of the leaves well.

[0021] The leaf cleaning device in this embodiment does not include a dust removal filter element structure installed in the air suction passage.

[0022] During operation, this embodiment is different from the prior art in that it does not use a negative pressure fan connected to the middle or rear section of the air suction pipeline as the power component for leaf adsorption. Instead, a rotatable baffle plate 7 disposed in the inner cavity of the casing, above and near the inlet, is used as the power component for material suction, that is, the material suction power is placed in the front. In the working state, the inlet 31 is close to the ground as the material suction port. The baffle plate 7 rotates with the rotating shaft 61 to form a pressure difference between the inner cavity of the casing and the inlet, specifically a micro-pressure difference. This micro-pressure difference is sufficient to suck the cleaning objects into the inlet, and combined with the movement of the baffle plate 7, a centrifugal throwing force that throws the cleaning objects towards the outlet 32 is formed, which has a wrapping effect on the leaves and finally throws the leaves to the outlet 32 and into the storage mechanism 4. In this way, not only can broad leaves such as plane tree leaves and narrow leaves such as willow leaves be smoothly cleaned and collected into the storage mechanism 4, but also the adsorption of leaves can be completed at the inlet without too much air volume. Moreover, in the case of not using a filter element, the reduction of the air volume required for adsorption also greatly reduces the serious dust problem caused by large-air-volume adsorption.

[0023] In the above embodiment, in addition to the above-mentioned material throwing function, the baffle plate also has the function of breaking the leaves, so that the leaves enter the storage mechanism 4 after being broken, avoiding the accumulation of larger leaves in the storage mechanism 4. The broken leaves are more conducive to the storage mechanism 4 storing more materials and extending the cleaning cycle of the storage mechanism 4.

[0024] Practice shows that using the baffle plate type leaf cleaning equipment of this embodiment can achieve a good cleaning effect on the road surface leaves, and there is no need to set a filter element structure. There is only slight dust at the storage mechanism 4, which has a significant improvement compared with the prior art.

[0025] In this embodiment, as shown in Figure 3 and Figure 4 , the cross-section (horizontal section) of the inner cavity of the casing 3 is circular to adapt to the rotation trajectory of the baffle plate 7 with the rotating shaft 61, and an outlet 32 is provided in the tangential direction of the casing 3, so that the baffle plate 7 directly sends the material to the outlet 32.

[0026] In this embodiment, the baffle plate 7 is of a strip plate structure. As shown in Figure 6 , the side edge thereof is bent upwards to form an inclined surface 71. Specifically, one side edge of one end is bent upwards to form an inclined surface 71, and the other side edge of the other end is bent upwards to form an inclined surface 71. By using this inclined surface, a certain angle is formed between the side edge of the baffle plate 7 and the horizontal plane. During the rotation of the baffle plate 7 with the rotating shaft 61, a pressure difference between the inner cavity of the casing 3 and the inlet 31 can be formed at the baffle plate 7, that is, an upward suction force is generated. At the same time, combined with the movement of the baffle plate 7, a centrifugal throwing force that throws the sucked cleaning objects towards the outlet 32 is formed, and finally the leaves enter the storage mechanism 4 through the outlet 32.

[0027] In addition to the bar-shaped plate structure of the deflector plate structure, in other embodiments, the deflector plate 7 can also be set as an inclined plate structure or a curved plate structure, as shown in Figure 7 and Figure 8 As shown, the middle of the deflector plate 7 is fixedly connected to the rotating shaft 61 through a mounting seat. By using the deflector plate 7 with an inclined plate structure or a curved plate structure, an angle is formed between the side edge of the deflector plate 7 and the horizontal plane. During the rotation of the deflector plate 7 with the rotating shaft 61, a pressure difference can be formed between the inner cavity of the housing 3 and the inlet 31 at the deflector plate 7, that is, an upward suction force is generated. At the same time, combined with the movement of the deflector plate 7, a centrifugal throwing force for throwing the inhaled cleaning objects towards the outlet 32 is formed, and finally the leaves enter the storage mechanism 4 through the outlet 32.

[0028] In the above embodiments, by exemplifying different deflector plate structures, the whole or part of the deflector plate forms a certain angle with the horizontal plane, so that a pressure difference is formed between the inner cavity of the housing 3 and the inlet 31 when the deflector plate rotates with the rotating shaft. However, this is not a limitation on the protection scope of the present invention. Any deflector plate structure that can form a pressure difference between the inner cavity of the housing 3 and the inlet 31 during rotation and thus generate an upward suction effect falls within the protection scope of the present invention.

[0029] Based on the above embodiments, in a preferred embodiment of the present invention, to adjust the height of the inlet 31 relative to the ground, the machine housing 3 is fixed to the frame 1. The frame 1 is connected to the traveling mechanism through a lifting mechanism and is controlled by a control lever 101. Specifically, as shown in the attached drawings, the two front wheels 911 are connected by a front wheel frame 103, and the two rear wheels 912 are connected by a rear wheel frame 104. The lower end of the control lever 101 is hinged to a hinge seat 111 fixed to the frame 1. The lifting mechanism includes a connecting rod 102, and the connecting rod 102 is movably connected to the control lever 101. The connecting rod 102 is respectively connected to the front wheel 911 and the rear wheel 912 through the front wheel frame 103 and the rear wheel frame 104. The front wheel frame 103 and the rear wheel frame 104 each include an adjusting plate 105, a connecting plate 106, and a connecting member 110. The adjusting plate 105 and the connecting plate 106 are connected by the connecting member 110. The connecting member 110 in this embodiment is a rod structure. The outer sides of the adjusting plate 105 and the connecting plate 106 of the front wheel frame 103 are respectively rotatably connected to the two front wheels 911 through wheel axles 92. The outer sides of the adjusting plate 105 and the connecting plate 106 of the rear wheel frame 104 are respectively rotatably connected to the two rear wheels 912 through wheel axles 92. The connecting rod 102 is hinged to the two adjusting plates 105, and the frame 1 is rotatably connected to the adjusting plate 105 through the connecting member 110, and the frame 1 and the connecting member 110 are relatively fixed in the vertical direction. The adjusting plate 105 in this embodiment is arranged in a crank arm structure. The connecting lines between the three connection points of the adjusting plate 105 corresponding to the connecting rod 102, the traveling wheels, and the connecting member 110 form a triangle. The connecting rod 102 can drive the two adjusting plates 105 to rotate around the connecting member 110 under the drive of the control lever 1 to adjust the height of the frame 1 relative to the traveling wheels, that is, to adjust the height of the inlet 31 relative to the ground. The control lever 1 is also connected with a first limiting member for restricting its rotation relative to the frame 1.

[0030] During operation, push the control lever 101 forward, driving the connecting rod 102 to move forward, and then driving the front wheel frame 103 and the rear wheel frame 104 to rotate around the two connecting members 110 respectively. Since the two sets of traveling wheels are always in contact with the ground, during the above rotation process, the connecting member 110 carries the frame 1 and the machine housing 3 to lift as a whole, and the inlet 31 moves away from the ground, which is also convenient for the transfer of the whole machine. On the contrary, operate the control lever 101 in the reverse direction, and the machine housing 3 can be adjusted to fall with the frame 1, and the inlet 31 tends to approach the ground.

[0031] In a specific embodiment, the first limiting member is a clamping member 109 fixed on the control rod 101, and a clamping slot 112 for clamping the clamping member 109 is provided on the hinge seat 111. The clamping slots 112 of different gears can be provided according to specific adjustment requirements, and the clamping slots 112 of different gears are arranged along the rotation direction of the control rod 101 around the hinge seat 111. Specifically, the clamping member 109 is a clamping block structure, which protrudes from the outer wall of the control rod 101 and is slidably connected to the control rod 101. An elastic member 108 for driving the clamping member 109 toward the clamping slot is provided inside the control rod 101 and located at the lower side of the clamping member 109. The elastic member 108 can specifically adopt a spring structure. The clamping member 109 is fixedly connected to the push rod 107. The push rod 107 is axially arranged inside the control rod 101 with the control rod 101 and the end thereof protrudes from the control rod 101. In a natural state, the clamping piece 109 is clamped into the clamping slot 112 by the force of the spring, limiting the rotation of the control rod 101. When the control rod 101 needs to be rotated around the hinge seat 111, the push rod 107 is pressed down to release the clamping piece 109 from the restriction of the clamping slot 112.

[0032] On the basis of the above-mentioned embodiment, in a preferred embodiment of the present invention, the paddle-type leaf cleaning device further includes a disc cleaning brush 8 arranged on the front side of the frame 1, specifically a disc brush located on the outside of the front of the frame 1. The number of disc brushes can be designed to be one according to actual needs, or one on each side. The functions of the disc brush are to clean the leaves near the roadside that are inconvenient for the host to reach, and to concentrate the leaves to the middle just in front of the inlet 31 so that the leaves fall into the adsorption range of the inlet 31. Preferably, the disc cleaning brush 8 can be set to be height-adjustable, put it down during work, and raise it during transfer; specifically, it is connected to the frame 1 through a liftable bracket, such as Figure 1 As shown, the disc cleaning brush 8 is connected to the frame 1 through a four-link lifting bracket 81.

[0033] Example 2 The paddle-type leaf cleaning device of this embodiment is basically the same as that of the first embodiment, except that the present embodiment is a ride-on type machine, which includes a traveling mechanism and a driver's seat 22 connected to the frame 1 and a control mechanism disposed in front of the driver's seat 22. Figures 12 - 16 .

[0034] In order to expand the working area, the housing can be provided with two, and the two housings are arranged on the left and right, the two housings intersect and the inner cavity cross section is an "8" shape, and the two share the same outlet at the intersection and are connected to the guide pipe 33. Similarly, the device does not include a dust filter structure installed on the suction passage.

[0035] To adjust the height of the inlet 31 relative to the ground, the following is an example of the lifting adjustment of the housing 3 in this embodiment: The housing 3 is arranged below the vehicle frame 1. A front connecting rod is hinged to the front side of the housing 3. A front connecting rod seat is fixedly connected to the front end of the front connecting rod 1. The front connecting rod seat is hinged to the vehicle frame 1. On the upper left and right sides of the rear of the housing 3, rear connecting rods are respectively hinged. The front end of the rear connecting rod is hinged to the outside of the vehicle frame 1. The main body of the rear connecting rod is hinged to the housing 3. A rear pull rod is hinged to the rear of the rear connecting rod. The rear end of the rear pull rod is hinged to a hinged pull rod. The main body of the hinged pull rod is hinged to the vehicle frame 1. A control rod 101 is also hinged above the hinged pull rod. The control rod 101 is arranged beside the driver's seat 22. Among them, the rear connecting rod, the rear pull rod, and the hinged pull rod are all left-right symmetric structures, that is, one is provided on each of the left and right sides of the vehicle frame 1, and the hinged pull rods on the left and right sides are connected as a whole and share the same hinge shaft to be hinged to the vehicle frame 1. Pull the control rod to drive the hinged pull rod to rotate around its hinge shaft with the vehicle frame 1, thereby pulling the rear pull rod hinged to the hinged pull rod. Then the rear pull rod pulls the rear connecting rod to drive the housing 3 to lift and lower, and it can quickly lift the housing 3 for quick transfer. In addition, the control rod 101 is also provided with a catch 1, which cooperates with the catch seat 1 to limit the control rod 101 after adjusting the height of the housing 3 to maintain the stability of the housing 3. The catch is fixed to the control rod, and the catch seat is fixed on the frame 1. The catch seat is provided with slots of different gears in the adjustment direction of the control rod. The catch being caught in the slots of different gears represents different heights of the housing 3.

[0036] In addition, in order to prevent the inlet 31 from being adjusted too close to the ground, limit wheels 5 can also be installed at the bottom of the front and rear sides of the housing 3 to control the lower limit.

[0037] Comparative Example 1 The leaf cleaning equipment in this comparative example is basically the same as that in Embodiment 1. The difference is that the storage mechanism 4 in this comparative example has a non-mesh design, and the air inlet of the storage mechanism 4 is communicated with the outlet 32 of the housing 3. A dust removal filter element (which is a prior art) is installed at the air outlet of the storage mechanism, and the output side of the dust removal filter element leads to the atmosphere. The working parameters of the power unit are also the same as those in Embodiment 1.

[0038] The experimental results show that when the power unit is started, it is found that the suction force at the inlet 31 of the housing 3 is not sufficient to suck in the leaves, and the leaves are seriously scattered, that is, the adsorption and cleaning of the leaves on the road surface cannot be achieved.

[0039] Comparative Example 2 The leaf cleaning equipment in this comparative example is basically the same as that in Embodiment 1. The difference is that the deflector structure is installed inside the housing 3, near the outlet 32. The deflector is connected to the power unit through a transmission member, and the working parameters of the power unit are also the same as those in Embodiment 1.

[0040] The experimental results show that when the power unit is started, it is found that the suction force at the inlet 31 of the casing 3 is insufficient to suck in the leaves, and the leaves are seriously scattered, that is, the adsorption and cleaning of the leaves on the road surface cannot be achieved.

Claims

1. The platen type leaf cleaning device, which includes a traveling mechanism, is characterized in that, Further comprising a housing (3) having a cavity structure, with an inlet (31) communicating with the inner cavity provided at the bottom thereof, and an outlet (32) communicating with the inner cavity provided at the rear side thereof, wherein the inlet (31) is close to the ground as a material suction port under working conditions; a material storage mechanism (4) connected to the outlet (32), and the material storage mechanism (4) has breathable mesh holes; a baffle (7) disposed in the inner cavity of the housing (3), the baffle (7) is rotatably connected to the housing (3) through a rotating shaft (61), and the rotating shaft is connected to a power unit (6) for driving its rotation; the baffle (7) rotates with the rotating shaft to form a pressure difference between the inner cavity of the housing (3) and the inlet (31), and at the same time forms a centrifugal throwing force for throwing the cleaning objects sucked through the inlet (31) towards the outlet (32).

2. The leaf sweeping device with a dial plate according to claim 1, characterized in that, The cross-section of the inner cavity of the housing (3) is circular to adapt to the rotation trajectory of the baffle (7) with the rotating shaft (61), and the outlet (32) is provided in the tangential direction of the housing (3).

3. The paddle-type leaf sweeping device according to claim 1, wherein, There are two housings (3), and the two housings (3) are arranged left and right, the two housings (3) intersect and the cross-section of the inner cavity is in the shape of an "8", and they share the same outlet (32) at the intersection and are connected to the guide pipe (33).

4. The leaf sweeping device with a flap plate according to any one of claims 1-3, characterized in that The baffle (7) or a part of the baffle (7) forms a preset angle with the horizontal plane.

5. The paddle-type leaf cleaning device according to claim 4, characterized in that The baffle (7) is a strip-shaped plate structure, and the side edge thereof is bent upwards to form an inclined surface (71).

6. The paddle-type leaf cleaning device according to claim 4, characterized in that, The baffle (7) is an inclined plate structure.

7. The leaf sweeping device with a flap type according to claim 4, characterized in that, The side edge of the baffle (7) is twisted upwards by a preset angle.

8. The paddle-type leaf cleaning device according to any one of claims 1-3, characterized in that, The housing (3) is connected to the traveling mechanism through a lifting mechanism for adjusting the height of the inlet (31) relative to the ground.

9. The paddle-type leaf cleaning device according to any one of claims 1-3, characterized in that, Further comprising a disc-shaped cleaning brush (8) disposed at the front side of the housing (3).

10. The paddle-type leaf cleaning device according to claim 9, characterized in that, The disc-shaped cleaning brush (8) is connected to the housing (3) through a liftable bracket.

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