A leaf-sucking device

Abstract

The application discloses a leaf suction device, and relates to the technical field of garden cleaning equipment, which comprises a bottom plate, a leaf suction mechanism and a leaf collecting mechanism. The bottom plate is movably arranged. The leaf suction mechanism is arranged on the bottom plate and used for sucking fallen leaves and collecting. The leaf suction mechanism comprises a leaf suction pipe. The leaf suction pipe has a leaf suction port extending to the outside of the bottom plate. There is a gap between the leaf suction port and the ground. The leaf collecting mechanism comprises an air pipe and a blower. There is a gap between the air pipe and the ground. The blower is fixed on the bottom plate and connected with the air pipe. The air pipe is substantially in a U-shaped structure and arranged around the outside of the leaf suction port. The air pipe is provided with air outlets at intervals in the circumferential direction. The air outlets are directed to the lower side of the leaf suction port. In the application, the leaf collecting mechanism is arranged to blow air from multiple directions to collect fallen leaves to the lower side of the leaf suction port, thereby improving the leaf suction efficiency and the working cleaning range. The collecting box is provided with an observation window and a discharge plate. The amount of fallen leaves in the collecting box can be observed. The discharge plate can be opened regularly to clean the fallen leaves.

Description

Technical Field

[0001] This utility model relates to the technical field of garden cleaning equipment, specifically to a leaf suction device. Background Technology

[0002] Currently, horticulturalists often use leaf vacuums in addition to traditional brooms when collecting fallen leaves. However, common leaf vacuums typically have the following drawbacks: 1. The location and diameter of the air suction port are limited, restricting the suction range and requiring operators to frequently move the machine to reposition it, resulting in high workload; 2. During operation, the collection box needs frequent cleaning to prevent it from becoming unusable due to excessive debris. Furthermore, disassembling the collection box often requires specialized tools, making operation difficult and reducing efficiency.

[0003] In response, a leaf-collecting device for garden maintenance disclosed in announcement number CN222834807U uses a collection and cleaning arm to collect fallen leaves on both sides of the device and concentrate them at the suction port, making it easier for the suction port to collect them and thus expanding the suction range. However, this technology has the following drawbacks: 1. The collection mechanism is located below the base plate, and at least four wheels are provided on the left and right edges below the base plate. The wheels limit the width of the collection mechanism, so the range of motion of the collection and cleaning arm added by this technology is limited, and the collection effect is limited; 2. The collection and cleaning arm has high requirements for the flatness of the ground, and its applicability and practicality are poor; 3. This technology uses the collection and cleaning arm to contact the road surface and gather the fallen leaves on both sides to the suction port from the outside to the inside, which has the following problems: (1) It is difficult for the collection and cleaning arms on both sides to contact the road surface simultaneously, accurately, and throughout the entire process, which has a large risk of failure. 1. Work omissions; (2) The collection cleaning arm rubs against the road surface frequently, resulting in significant wear and requiring frequent replacement; (3) The collection cleaning arm rubs against the road surface to collect fallen leaves to the suction port. During the work process, the collection cleaning arm inevitably hits protruding hard objects covered by fallen leaves, causing work interruption or even damage to the instrument; 4. During the operation of the collection cleaning arm, such as unfolding, retracting, and lifting, the operator needs to continuously control the direction and speed, and also needs to frequently switch between unfolding, retracting, and lifting functions, resulting in high labor intensity and low work efficiency; 5. The collection mechanism is located below the base plate, making cleaning and maintenance difficult. Utility Model Content

[0004] Therefore, in order to solve at least one of the above problems, this utility model provides a leaf suction device.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A leaf-collecting device, comprising:

[0007] A base plate, wherein the base plate is movably disposed;

[0008] A leaf-collecting mechanism is arranged on a base plate for sucking up and collecting fallen leaves. The leaf-collecting mechanism includes a leaf-collecting tube with a leaf-collecting port extending to the outside of the base plate, and there is a gap between the leaf-collecting port and the ground.

[0009] The leaf collecting mechanism includes an air duct and a blower. There is a gap between the air duct and the ground. The blower is fixed on the base plate and connected to the air duct. The air duct is generally U-shaped and surrounds the outside of the leaf suction port. The air duct is provided with air outlets at intervals along the circumference, and the air outlets face downwards from the leaf suction port.

[0010] Optionally, the duct includes a first section and a second section. The first section is installed on the edge of the base plate and communicates with the blower. Two second sections are arranged opposite each other and are respectively arranged at both ends of the first section to form a U-shaped structure. The air outlet is arranged on the side wall of the first section and the second section.

[0011] Optionally, the first pipe segment is connected to the blower via a flexible corrugated pipe. The first pipe segment is rotatably connected to the edge of the base plate, and the rotation axis of the first pipe segment is the same as its length direction, so that the second pipe segment has an extended state extending out of the base plate and an retracted state placed on the upper surface of the base plate.

[0012] Optionally, the leaf suction mechanism further includes a leaf suction pump, a crusher box, and a collection box. The leaf suction pump is used to provide suction force to draw fallen leaves from the leaf suction port to the crusher box. The crusher box is used to crush the fallen leaves and has a discharge port. The collection box is connected to the discharge port to receive the crushed leaf particles.

[0013] Optionally, the crusher housing includes an upper housing and a lower housing. The upper housing is connected to the suction pump via a pipe. A rotating shaft and crushing blades arranged on the rotating shaft are rotatably installed inside the upper housing. A drive motor for driving the rotating shaft to rotate is installed outside the upper housing. The lower housing has a hollowed-out interior for placing a collection box, and the collection box is detachably fixed inside the lower housing.

[0014] Optionally, the crusher box further includes a screen, and the discharge port is located at the bottom of the upper box, with the screen arranged at the discharge port.

[0015] Optionally, one side wall of the lower housing is open to form an opening, through which the collection box is installed or removed; the lower housing is operably provided with a first baffle for locking or unlocking the position of the collection box relative to the lower housing.

[0016] Optionally, the collection box is provided with an observation window.

[0017] Optionally, the bottom of the collection box is provided with a discharge pipe extending downwards, and the bottom plate is provided with a clearance notch to accommodate the discharge pipe.

[0018] Optionally, the collection box is operably provided with a discharge plate for opening or closing the discharge pipe.

[0019] The technical solution provided by this utility model has the following beneficial effects:

[0020] 1. Effectively expand the leaf suction range: By setting up a leaf collection mechanism, fallen leaves can be concentrated below the leaf suction port by blowing air from multiple directions, eliminating the need to frequently move the leaf suction device, thereby improving leaf suction efficiency and working cleaning range;

[0021] 2. High adaptability and reliability: The suction port and the leaf collection mechanism are spaced apart from the ground, preventing them from contacting the ground and avoiding collisions with hard objects. This makes them suitable for different ground conditions and extends the service life of the equipment.

[0022] 3. Easy cleaning of the collection box: The collection box is equipped with an observation window and a discharge plate. There is no need to disassemble the entire collection box from the lower box. The fallen leaf particles in the collection box can be cleaned by opening the discharge pipe through the discharge plate, which greatly reduces the difficulty of operation and labor intensity.

[0023] 4. Reasonable overall structure and convenient maintenance: The crusher box and the collection box can be separated for easy maintenance and cleaning;

[0024] 5. Intelligent and user-friendly operation: The crusher box is equipped with a control panel, which can control the operation of various electrical components through buttons, improving the user experience and work efficiency;

[0025] 6. Stable overall structure: Rubber pads are used to buffer the collection box and the first baffle, reducing impact and wear between components and improving the durability and stability of the whole machine. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0027] Figure 2 This is a side view of the duct in the extended state in this embodiment;

[0028] Figure 3 This is a side view of the duct in the receiving state in this embodiment;

[0029] Figure 4 This is an exploded view of the upper and lower boxes in this embodiment;

[0030] Figure 5 This is a schematic diagram of the overall structure from another perspective of this embodiment;

[0031] Figure 6 This is an exploded schematic diagram of the collection box in this embodiment.

[0032] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Clearance notch; 2. Leaf suction mechanism; 21. Leaf suction pipe; 211. Leaf suction port; 22. Leaf suction pump; 23. Crusher housing; 231. Upper housing; 232. Lower housing; 233. Screen; 234. Rotating shaft; 235. Crusher blades; 236. Drive motor; 237. First baffle; 238. Control panel; 239. Push-pull rod; 24. Collection box; 241. Observation window; 242. First handle; 243. Discharge pipe; 244. Unloading plate; 245. Contact plate; 246. Second handle; 247. Second baffle; 3. Leaf collecting mechanism; 31. Air duct; 311. First pipe section; 312. Second pipe section; 32. Blower; 33. Air outlet; 34. Hinge; 35. Corrugated pipe. Detailed Implementation

[0033] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0034] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0035] Reference Figures 1-6 This embodiment provides a leaf-collecting device, including a base plate 1, a leaf-collecting mechanism 2, and a leaf-collecting mechanism 3. The base plate 1 is movably mounted and has rollers at its bottom. The leaf-collecting mechanism 2 is arranged on the base plate 1 for sucking up and collecting fallen leaves. The leaf-collecting mechanism 2 includes a leaf-collecting pipe 21, which has a leaf-collecting port 211 extending to the outside of the base plate 1, and there is a gap between the leaf-collecting port 211 and the ground. The leaf-collecting mechanism 3 includes an air duct 31 and a blower 32. The blower 32 is fixed on the base plate 1 and connected to the air duct 31. There is a gap between the air duct 31 and the ground. The air duct 31 is generally U-shaped and surrounds the leaf-collecting port 211. The air duct 31 has air outlets 33 spaced around it circumferentially, and the air outlets 33 face downwards from the leaf-collecting port 211. It should be noted that it is roughly U-shaped, and the opening of the U-shaped structure can be appropriately expanded at a certain angle; it can also be a V-shaped structure; that is, as long as it is a structure that can blow fallen leaves to the area below the leaf suction port 211 from at least two directions.

[0036] The duct 31 adopts a roughly U-shaped design, surrounding the outside of the suction port 211. This effectively expands the suction range and concentrates fallen leaves below the suction port 211, eliminating the need for frequent movement of the entire suction device and thus improving cleaning efficiency. Furthermore, both the suction port 211 and the duct 31 have gaps between themselves and the ground, preventing wear and tear on the suction port 211 and the duct 31 during movement.

[0037] In this embodiment, the duct 31 includes a first duct section 311 and a second duct section 312. The first duct section 311 is installed on the edge of the base plate 1 and communicates with the blower 32. Two second duct sections 312 are arranged opposite each other and are respectively arranged at both ends of the first duct section 311 in the length direction to form a U-shaped structure. The air outlet 33 is arranged on the side wall of the first duct section 311 and the second duct section 312.

[0038] In this embodiment, the first tube segment 311 is rotatably connected to the edge of the base plate 1, and the rotation axis of the first tube segment 311 is the same as its length direction, so that the second tube segment 312 has an extended state extending out of the base plate 1 and a retracted state placed on the upper surface of the base plate 1. Specifically, the upper edge of the first tube segment 311 can be hinged to the upper edge of the base plate 1 by a hinge 34. The first tube segment 311 is connected to the blower 32 by a flexible corrugated tube 35, and the base plate 1 provides a notch at the connection between the first tube segment 311 and the corrugated tube 35 to allow space. In this way, the entire tube segment can be rotated 180° around the hinge axis of the hinge 34, so that the second tube segment 312 can extend horizontally out of the base plate 1 for operation, or rotate 180° and then be placed horizontally on the upper surface of the base plate 1 for easy storage and space saving.

[0039] In this embodiment, the leaf suction mechanism 2 further includes a leaf suction pump 22, a crusher box 23, and a collection box 24. The leaf suction pump 22 provides suction force to draw fallen leaves from the leaf suction port 211 to the crusher box 23. The crusher box 23 is used to crush the fallen leaves and has a discharge port. The collection box 24 is connected to the discharge port to collect the crushed leaf particles. Crushing the fallen leaves reduces the volume occupied by the leaves, thereby reducing the frequency of regularly cleaning the collection box 24.

[0040] In this embodiment, refer to Figure 4The pulverizer housing 23 includes an upper housing 231 and a lower housing 232. The upper housing 231 is connected to the leaf suction pump 22 via a pipe. A rotating shaft 234 and pulverizing blades 235 are rotatably mounted inside the upper housing 231. A drive motor 236 for driving the rotating shaft 234 is installed outside the upper housing 231. The lower housing 232 has an internal hollow section for housing a collection box 24, which is detachably fixed inside the lower housing 232 for easy removal and thorough cleaning. Specifically, the upper housing 231 and lower housing 232 are arranged in a convex shape, with the drive motor 236 mounted on the upper surface of the lower housing 232 and driving the rotating shaft 234 to pulverize the fallen leaves by rotating the pulverizing blades 235. A control panel 238 is integrated on the side wall of the upper housing 231 for controlling the operation of all electrical components of the entire leaf suction device. A push-pull rod 239 is provided at the upper end of the lower housing 232. The operator can apply force to the push-pull rod 239 to move the entire suction device.

[0041] In this embodiment, the crusher box 23 also includes a screen 233. The discharge port is located at the bottom of the upper box 231. The screen 233 is arranged at the discharge port so that the fallen leaves will only fall into the collection box 24 after they are completely crushed.

[0042] In this embodiment, one side wall of the lower housing 232 is open to form an opening, through which the collection box 24 is installed or removed. The lower housing 232 is operably provided with a first baffle 237 for locking or unlocking the collection box 24 relative to the lower housing 232. Specifically, one side of the first baffle 237 is rotatably mounted on the edge of the opening, and the other side is fixed or detached from the edge of the opening by a snap-fit. In other embodiments, the first baffle 237 can also be inserted into the opening of the lower housing 232 to lock or unlock the collection box 24. The first baffle 237 ensures that the collection box 24 is stably installed inside the lower housing 232, preventing it from detaching during movement. The first baffle 237 is also provided with a rubber pad to abut against the outer wall of the collection box 24, preventing strong impact between the first baffle 237 and the collection box 24 and providing a cushioning effect. Rubber pads can also be provided on the outer periphery of the collection box 24, similarly providing a cushioning effect.

[0043] In this embodiment, the collection box 24 is provided with an observation window 241, and the first baffle 237 is positioned below the observation window 241 of the collection box 24, so that the interior of the collection box 24 can be observed through the observation window 241, so as to facilitate regular cleaning based on the amount of crushed leaf particles inside.

[0044] In this embodiment, a discharge pipe 243 extends downward from the bottom of the collection box 24 to facilitate collection by attaching a collection bag to the outside of the discharge pipe 243. Specifically, a protruding ring is provided on the lower edge of the discharge pipe 243 to prevent the collection bag from falling off when it is attached to the lower end of the discharge pipe 243. The bottom plate 1 is provided with a clearance notch 11 to accommodate the discharge pipe 243, thereby facilitating the installation of the collection box 24 into the lower box 232. A first handle 242 is also provided on the side wall of the collection box 24, allowing the operator to apply force to the first handle 242 to pull the collection box 24 out from inside the lower box 232.

[0045] In this embodiment, refer to Figure 6 The collection box 24 is operably equipped with a discharge plate 244 for opening or closing the discharge pipe 243. Specifically, the discharge plate 244 is horizontally inserted into the bottom of the side wall of the collection box 24. An abutment plate 245 is provided on one side of the discharge plate 244 for abutting against the outer wall of the collection box 24. Furthermore, a second handle 246 is provided on the side of the abutment plate 245 away from the discharge plate 244, so that applying force to the second handle 246 can pull the discharge plate 244 out to open the discharge pipe 243; conversely, pushing the discharge plate 244 in can close the discharge pipe 243. A rubber pad is provided along the circumferential edge of the abutment plate 245 facing the side wall of the collection box 24 to improve the sealing between the abutment plate 245 and the outer wall of the collection box 24. To maintain the stability of the unloading plate 244, a second baffle 247 is rotatably mounted on the outer wall of the collection box 24. One side of the second baffle 247 is rotatably connected to the outer wall of the collection box 24, and the other side is detachably connected to the outer wall of the collection box 24 via a snap fastener. The second baffle 247 has a corresponding perforated portion to allow space for the second handle 246. Thus, when the unloading plate 244 closes the discharge pipe 243, the second baffle 247 blocks the contact plate 245 and is fixedly connected to the outer wall of the collection box 24 via a snap fastener, thus maintaining the stability of the unloading plate 244. When unloading is required, simply open the snap fastener to release the restriction of the second baffle 247 on the contact plate 245, and the second handle 246 can be pulled out, allowing the unloading plate 244 to open the discharge pipe 243.

[0046] Work process:

[0047] 1. Leaf suction operation: Turn on the drive motor 236, leaf suction pump 22 and blower 32. The blower 32 blows the fallen leaves to the area below the leaf suction port 211. The suction force generated by the leaf suction pump 22 is used to pump the fallen leaves below the leaf suction port 211 into the crusher box 23. After being crushed in the upper box 231, the fallen leaves fall from the screen 233 into the collection box 24 in the lower box 232.

[0048] 2. Discharge: The amount of fallen leaf particles inside the collection box 24 can be observed through the observation window 241. When discharge is required, stop the leaf suction operation, attach the collection bag to the discharge pipe 243; open the buckle between the second baffle 247 and the outer wall of the collection box 24 to release the restriction on the contact plate 245, then pull the second handle 246 to pull out the discharge plate 244 and open the discharge pipe 243; the fallen leaf particles in the collection box 24 will then fall into the collection bag. After discharge is completed, insert the discharge plate 244 back into the collection box 24, rotate the second baffle 247 to press against the contact plate 245, and fix it to the outer wall of the collection box 24 with the buckle; then the leaf suction operation can continue.

[0049] 3. Removing the collection box 24: In special circumstances, it is necessary to remove the collection box 24, such as when the fallen leaves are damp and the crushed leaf particles accumulate and adhere to the inside of the collection box 24, requiring thorough cleaning; open the buckle between the first baffle 237 and the lower box 232 to release the restriction of the first baffle 237 on the collection box 24, and the operator can pull out the collection box 24 by applying force to the first handle 242.

[0050] In summary, this embodiment has the following beneficial effects:

[0051] 1. Effectively expand the leaf suction range: By setting up the leaf collection mechanism 3, fallen leaves can be concentrated below the leaf suction port 211 by blowing air from multiple directions, eliminating the need to frequently move the leaf suction device and significantly improving leaf suction efficiency and working cleaning range.

[0052] 2. High adaptability and reliability: The suction port 211 and the leaf collecting mechanism 3 are spaced apart from the ground and do not come into contact with the ground, avoiding collisions with hard objects. They are suitable for different ground conditions and extend the service life of the equipment.

[0053] 3. Easy cleaning of collection box 24: Collection box 24 is equipped with observation window 241 and unloading plate 244. There is no need to disassemble the entire collection box 24 from the lower box 232. The fallen leaf particles in the collection box 24 can be cleaned by opening the discharge pipe 243 through the unloading plate 244, which greatly reduces the difficulty of operation and labor intensity.

[0054] 4. The machine has a reasonable structure and is easy to maintain: the crusher box 23 and the collection box 24 can be separated, which is convenient for maintenance and cleaning.

[0055] 5. Intelligent and user-friendly operation: The crusher housing 23 is equipped with a control panel 238, which can control the operation of various electrical components through buttons, improving user experience and work efficiency.

[0056] 6. Stable overall structure: Rubber pads are used to buffer the collection box 24 and the first baffle 237, reducing the impact and wear between components and improving the durability and stability of the whole machine.

[0057] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A leaf-suction device, characterized in that, include: A base plate, wherein the base plate is movably disposed; A leaf-collecting mechanism is arranged on a base plate for sucking up and collecting fallen leaves. The leaf-collecting mechanism includes a leaf-collecting tube with a leaf-collecting port extending to the outside of the base plate, and there is a gap between the leaf-collecting port and the ground. The leaf collecting mechanism includes an air duct and a blower. There is a gap between the air duct and the ground. The blower is fixed on the base plate and connected to the air duct. The air duct is generally U-shaped and surrounds the outside of the leaf suction port. The air duct is provided with air outlets at intervals along the circumference, and the air outlets face downwards from the leaf suction port.

2. The leaf-suction device according to claim 1, characterized in that: The air duct includes a first section and a second section. The first section is installed on the edge of the base plate and communicates with the blower. Two second sections are arranged opposite each other and are respectively arranged at both ends of the first section to form a U-shaped structure. The air outlet is arranged on the side wall of the first section and the second section.

3. The leaf-suction device according to claim 2, characterized in that: The first pipe segment is connected to the blower via a flexible corrugated pipe. The first pipe segment is rotatably connected to the edge of the base plate, and the rotation axis of the first pipe segment is the same as its length direction, so that the second pipe segment has an extended state extending out of the base plate and an retracted state placed on the upper surface of the base plate.

4. The leaf-suction device according to claim 1, characterized in that: The leaf suction mechanism also includes a leaf suction pump, a crusher box, and a collection box. The leaf suction pump is used to provide suction force to draw fallen leaves from the leaf suction port to the crusher box. The crusher box is used to crush the fallen leaves. The crusher box has a discharge port. The collection box is connected to the discharge port to receive the crushed leaf particles.

5. A leaf-suction device according to claim 4, characterized in that: The crusher housing includes an upper housing and a lower housing. The upper housing is connected to the suction pump via a pipe. A rotating shaft and crushing blades arranged on the rotating shaft are rotatably installed inside the upper housing. A drive motor for driving the rotating shaft is installed outside the upper housing. The lower housing has a hollowed-out interior for placing a collection box, which is detachably fixed inside the lower housing.

6. A leaf-suction device according to claim 5, characterized in that: The crusher box also includes a screen, and the discharge port is located at the bottom of the upper box body, with the screen arranged at the discharge port.

7. A leaf-suction device according to claim 5, characterized in that: The lower housing has an open side wall forming an opening through which the collection box is installed or removed; the lower housing is operably provided with a first baffle for locking or unlocking the collection box relative to the position of the lower housing.

8. A leaf-suction device according to claim 4, characterized in that: The collection box is equipped with an observation window.

9. A leaf-suction device according to claim 4, characterized in that: The bottom of the collection box extends downwards and is provided with a discharge pipe, and the bottom plate is provided with a clearance notch to accommodate the discharge pipe.

10. A leaf-suction device according to claim 9, characterized in that: The collection box is operably equipped with a discharge plate for opening or closing the discharge pipe.

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