Dust collection device for collecting fallen leaves and motor sweeper

Abstract

The invention belongs to the technical field of road sweeping equipment, and particularly relates to a dust collection device for collecting fallen leaves and a sweeping vehicle. The dust suction device comprises a lifting connecting frame and a suction cup, the lifting connecting frame is connected with the suction cup, the suction cup is provided with a suction port used for being connected with an air pipe, a suction and pickup cavity is formed in the suction cup and communicated with a dust suction port, and a flow guide pressing plate is arranged on the suction cup. The height of the suction cup can be adjusted through the lifting connecting frame, fallen leaves are downwards squeezed into the suction and picking cavity in cooperation with the design of the height and the inclination angle of the flow guide pressing plate, and leaves conveniently enter the suction and picking cavity of the suction cup. And the situation that the fallen leaves cannot enter the sucking and picking cavity under the condition that the fallen leaves are too many and stacked high is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of road cleaning equipment, and in particular relates to a dust suction device for collecting fallen leaves and a cleaning vehicle. Background Art

[0002] When the road sweeper is performing road sweeping operations, the garbage is gathered through the cleaning device and the garbage is sucked up through the dust suction device.

[0003] To ensure high sealing, the vacuum device needs to be close to the ground during operation, and the overall height of the front end of the device is relatively low. When sucking up large, irregular, and lightweight garbage such as fallen leaves and branches, on the one hand, due to the small opening of the rubber plate at the front end of the suction cup, the accumulated fallen leaves will be pushed by the front rubber plate, which is not conducive to the entry of the fallen leaves. Even if the opening of the front rubber plate of the suction cup is increased, when encountering road conditions with a large number of fallen leaves and high accumulation, the fallen leaves will still leak out from the top of the suction cup and cannot completely enter the suction cup. On the other hand, the suction cup of a conventional sweeper has a small diameter, and the air duct is easily stuck and blocked by fallen leaves and branches, causing the suction cup to be unable to be used normally.

[0004] For this reason, it is necessary to design a dust suction device for a sweeper that can effectively suck the fallen leaves on the ground into a trash bin. Summary of the invention

[0005] In view of the above problems existing in the prior art, the present invention provides a dust suction device and a sweeper for picking up fallen leaves, which can clean up the accumulated leaves.

[0006] To achieve the above object, the technical solution provided by the present invention is as follows:

[0007] In a first aspect, the present application provides a dust suction device for picking up fallen leaves, comprising a lifting connecting frame and a suction cup, wherein the lifting connecting frame is connected to the suction cup, the suction cup is provided with a suction port for connecting to an air duct, a suction cavity is formed in the suction cup, and the suction cavity is connected to the suction port.

[0008] Optionally, a guide pressure plate is provided on the suction cup, the guide pressure plate forms an angle of 40°-80° with the ground, and the height between the top of the guide plate and the ground is not less than 200 mm.

[0009] Optionally, the lifting connecting frame includes a mounting frame, a flip frame and a connecting rod, one end of the flip frame and the connecting rod is hinged to the mounting frame, and the other end of the flip frame and the connecting rod is hinged to the suction cup, a parallelogram connecting rod structure is formed between the mounting frame, the flip frame, the connecting rod and the suction cup, and a telescopic assembly is provided on the mounting frame, and the telescopic end of the telescopic assembly is connected to a position of the connecting rod structure other than the mounting frame.

[0010] Optionally, the suction port is trumpet-shaped, and the cross-sectional area of ​​the end where the suction port is connected to the air duct is smaller than the cross-sectional area of ​​the end where the suction port is connected to the suction cup.

[0011] Optionally, the suction cup is provided with walking wheels.

[0012] Optionally, in the suction state, the bottom of the suction cup is 5mm-15mm above the ground.

[0013] Optionally, the telescopic end of the telescopic assembly is connected to a connecting rod.

[0014] In a second aspect, the present application further provides a sweeper, comprising the above-mentioned dust suction device for picking up fallen leaves, wherein the mounting frame of the dust suction device for picking up fallen leaves is fixed on a garbage bin, and the air duct is connected to the garbage collection bin.

[0015] Optionally, the sweeper is also provided with a roller brush type dust suction device.

[0016] Compared with the prior art, this application has at least the following beneficial effects:

[0017] The height of the suction cup can be adjusted by lifting the connecting frame, and the height and inclination angle of the guide pressure plate can be designed to squeeze the fallen leaves downward into the suction cavity, making it convenient for the leaves to enter the suction cavity of the suction cup; avoiding the situation where the fallen leaves cannot enter the suction cavity when there are many fallen leaves and the accumulation is high. The cleaning vehicle of the present invention is equipped with a dust suction device for collecting fallen leaves and a roller brush dust suction device at the same time, which is suitable for various working conditions and can achieve good cleaning effects under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic structural diagram of a dust collection device for collecting fallen leaves in an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the suction cup structure in an embodiment of the present application;

[0021] Figure 3 for Figure 2 Side view of the middle sucker;

[0022] Figure 4 A schematic structural diagram of a sweeper in an embodiment of the present application;

[0023] Figure 5 This is a schematic diagram of the suction cup in use in the embodiment of the present application;

[0024] Figure 6This is a schematic diagram of a use status of a sweeper in an embodiment of the present application;

[0025] Description of reference numerals:

[0026] 1. Lifting connecting frame; 11. Mounting frame; 12. Flipping frame; 13. Connecting rod; 14. Telescopic assembly; 2. Suction cup; 21. Guide pressure plate; 22. Fixed frame; 23. Travel wheel; 24. Rear rubber plate; 3. Suction port; 4. Air duct; 41. Connecting seat; 42. Air duct connecting port; 5. Chassis; 6. Power system; 7. Subframe; 8. Cleaning device; 9. Roller brush type dust suction device; 10. Garbage bin; 11. Dust suction device for picking up fallen leaves. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use.

[0028] Example 1

[0029] like Figure 1 As shown, a dust collection device for collecting fallen leaves includes a lifting connecting frame 1 and a suction cup 2. The lifting connecting frame 1 is connected to the suction cup 2. The suction cup 2 is provided with a suction port 3 for connecting to an air duct 4. A suction cavity is formed in the suction cup 2, and the suction cavity is communicated with the suction port 3.

[0030] The height of the suction cup 2 can be adjusted by lifting the connecting frame 1, and the fallen leaves can be squeezed downward into the suction cavity by cooperating with the guide pressure plate 21, so as to facilitate the leaves to enter the suction cavity of the suction cup 2; and avoid the situation that the fallen leaves cannot enter the suction cavity when there are many fallen leaves and the accumulation is high.

[0031] Example 2

[0032] The difference between this embodiment and embodiment 1 is that: Figure 2 and Figure 3 As shown, a guide plate 21 is provided on the suction cup 2, and the guide plate 21 forms an angle of 40°-80° with the ground. The height between the top of the guide plate and the ground is not less than 200mm. The angle and height design of the guide plate 21 facilitates the fallen leaves to enter the suction chamber.

[0033] The lifting connection frame 1 includes a mounting frame 11, a flip frame 12 and a connecting rod 13. One end of the flip frame 12 and the connecting rod 13 is hinged to the mounting frame 11. A fixing frame 22 is provided at the top of the guide plate 21 on the suction cup 2. The other ends of the flip frame 12 and the connecting rod 13 are hinged to the fixing frame 22. A parallelogram connecting rod structure is formed between the mounting frame 11, the flip frame 12, the connecting rod 13 and the fixing frame 22. A telescopic component 14 is provided on the mounting frame 11. The telescopic end of the telescopic component 14 is connected to the connecting rod 13 except for the mounting frame 11. In this embodiment, the telescopic end of the telescopic component 14 is connected to the connecting rod 13. The telescopic component 14 is extended and retracted to drive the connecting rod 13 to lift, thereby adjusting the position of the suction cup 2 to facilitate the alignment of the suction chamber and the fallen leaves. The telescopic component 14 can adopt a telescopic rod or any telescopic structure.

[0034] The suction port 3 is trumpet-shaped, and the cross-sectional area of ​​the connection end of the suction port 3 and the air duct 4 is smaller than the cross-sectional area of ​​the connection end with the suction cup 2.

[0035] The suction cup 2 is provided with a walking wheel 23 for assisting the suction cup 2 to move along with the sweeper.

[0036] The suction cup 2 is a frame structure, including rigid parts on both sides, a guide pressure plate 21 on the front side, and a rear rubber plate 24 on the rear side. The rigid parts, the guide pressure plate 21, and the rear rubber plate 24 enclose a suction cavity. The rigid parts and the rear rubber plate 24 are both 5mm-15mm above the ground to maintain the sealing of the suction area below the left and right sides of the suction cup 2; the suction port 3 is located at the top of the suction cup 2; the air duct 4 adopts a large-caliber design of ≥300mm; when in the suction state, the bottom of the suction cup 2 is 5mm-15mm above the ground.

[0037] The air duct 4 is provided with a connection seat 41 for connecting to a garbage bin on the cleaning vehicle.

[0038] When cleaning fallen leaves, first connect the connecting seat 41 to the docking air duct on the trash bin. Control the telescopic assembly 14 to extend, and the flip frame 12 and the connecting rod 13 to rotate downward, driving the suction cup 2 to move downward and close to the ground. Figure 5 and Figure 6 As shown, after the walking wheel 23 of the suction cup 2 is in contact with the ground, the sweeper moves forward and drives the suction cup 2 forward. After the fallen leaves on the ground enter the inner cavity of the suction cup 2, they move upward under the action of the airflow of the pneumatic system, and the fallen leaves enter the garbage bin through the suction port 3 and the air duct 4, completing the suction and collection of the fallen leaves.

[0039] When the suction cup 2 encounters fallen leaves with a high pile height, the slope of the guide plate 21 and the weight of the suction cup 2 will squeeze the fallen leaves downward to the height range of the inner cavity of the suction cup 2, so that all the accumulated fallen leaves can enter the suction cavity of the suction cup 2. The trumpet shape of the suction port 3, which is small at the top and large at the bottom, ensures a wide suction range of the suction cup 2 while gradually increasing the speed of the fallen leaves moving upward, avoiding the phenomenon of fallen leaves stagnating and piling up in the pipe due to reduced speed. The suction port 3 is connected to the air duct 4 through the air duct connection port 42, and the large-diameter air duct 4 also avoids the problem that the air duct is easily stuck or blocked by fallen leaves and branches.

[0040] like Figure 4 As shown, when the sweeper finishes its operation, the telescopic assembly 14 retracts, the flip frame 12 and the connecting rod 13 rotate upward, driving the suction cup 2 to move upward to a retracted state, and the connecting seat 41 is separated from the garbage bin.

[0041] On the second aspect, the present application also provides a sweeper, which includes the above-mentioned dust suction device 11 for picking up fallen leaves, the mounting frame 11 on the dust suction device 11 for picking up fallen leaves is fixed on the garbage bin, and the air duct 4 is connected to the garbage collection bin.

[0042] The sweeper is also provided with a roller brush type dust suction device 9, which can adopt the suction cup of the sweeping type sweeper in CN117403578A or other roller brush type dust suction devices 9 with good cleaning ability for fine dust. The roller brush type dust suction device 9 is targeted at roads without fallen leaves, and has a high degree of suction and cleaning; thus, the corresponding dust suction device can be selected according to different working conditions to enhance the applicability of the whole vehicle. The sweeper also includes a chassis 5, a power system 6, a subframe 7 for placing the power system 6, and a cleaning device 8.

[0043] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0044] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A dust collecting device for collecting fallen leaves, characterized in that: The utility model comprises a lifting connection frame and a suction cup, wherein the lifting connection frame is connected to the suction cup, the suction cup is provided with a suction port for connecting with an air duct, a suction cavity is formed in the suction cup, and the suction cavity is connected with the suction port.

2. The dust collecting device for collecting fallen leaves according to claim 1, characterized in that: The suction cup is provided with a guide pressure plate, the guide pressure plate forms an angle of 40°-80° with the ground, and the height between the top of the guide plate and the ground is not less than 200 mm.

3. The dust collecting device for collecting fallen leaves according to claim 1, characterized in that: The lifting connecting frame includes a mounting frame, a flip frame and a connecting rod, one end of the flip frame and the connecting rod is hinged to the mounting frame, and the other end of the flip frame and the connecting rod is hinged to the suction cup, and a parallelogram connecting rod structure is formed between the mounting frame, the flip frame, the connecting rod and the suction cup. A telescopic component is provided on the mounting frame, and the telescopic end of the telescopic component is connected to a position of the connecting rod structure other than the mounting frame.

4. The dust collecting device for collecting fallen leaves according to claim 1, characterized in that: The suction port is trumpet-shaped, and the cross-sectional area of ​​the end where the suction port is connected to the air duct is smaller than the cross-sectional area of ​​the end where the suction port is connected to the suction cup.

5. The dust collecting device for collecting fallen leaves according to claim 1, characterized in that: The suction cup is provided with walking wheels.

6. The dust collecting device for collecting fallen leaves according to claim 1, characterized in that: In the suction state, the bottom of the suction cup is 5mm-15mm above the ground.

7. The dust collecting device for collecting fallen leaves according to claim 1, characterized in that: The telescopic end of the telescopic assembly is connected to the connecting rod.

8. A sweeper, characterized in that: The utility model comprises the dust collecting device for picking up fallen leaves as claimed in any one of claims 1 to 7, wherein the mounting frame of the dust collecting device for picking up fallen leaves is fixed on a garbage bin, and the air duct is connected to the garbage collection bin.

9. The cleaning vehicle according to claim 8, characterized in that: The sweeper is also provided with a roller brush type dust suction device.

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