A garden branch shredder

Abstract

This application relates to the technical field of landscaping, and in particular to a garden branch shredder, comprising a frame, a power mechanism mounted on the frame, and a shredding chamber driven by the power mechanism. The shredding chamber has a feed inlet at its top and a shredding assembly inside. A protective cover is movably mounted at the feed inlet, and a pressing plate reciprocating relative to the inner wall of the protective cover is provided. An elastic reset element is provided between the pressing plate and the inner wall of the protective cover. The protective cover effectively seals the feed inlet, solving the problem of splattering debris and improving operational safety and environmental cleanliness. The pressing plate facilitates the smooth falling of branches into the shredding assembly, preventing branches from "bridging" or "blocking," thereby improving shredding efficiency and continuity.

Description

Technical Field

[0001] This application relates to the technical field of gardening, and in particular to a garden branch shredder. Background Technology

[0002] In garden maintenance, urban greening, and tree pruning, a large amount of green waste such as branches and shrub twigs is generated. These wastes are bulky and take up a lot of space. Direct transportation would be costly and inefficient. Therefore, they usually need to be crushed on-site. The crushed wood chips can be used for composting, mulching, or as biomass fuel, realizing the resource utilization of waste and conforming to the concepts of green environmental protection and circular economy.

[0003] Currently, common garden branch shredders on the market typically include a frame with a power mechanism and a shredding chamber driven by the power mechanism. The top of the shredding chamber has a feed inlet, and the inside is equipped with a set of shredding blades. During operation, workers feed branches into the feed inlet, and the high-speed rotating blades cut and impact them into fragments. This type of equipment has a relatively simple structure and solves the problem of reducing the volume of branches to a certain extent.

[0004] However, existing crushing devices of this type have revealed obvious defects in actual use. First, because the crushing process is open or semi-open, the high-speed rotating blades will cause the material to splash and eject wood chips or small particles from the feed inlet, which poses a risk of injuring operators and pollutes the surrounding environment. In addition, the splashed branches need to be put back in for crushing, which affects efficiency. Utility Model Content

[0005] This application provides a garden branch shredder, which can at least partially solve the above-mentioned technical problems.

[0006] This application provides a garden branch shredding device, which adopts the following technical solution: A garden branch shredding device includes a frame, a power mechanism mounted on the frame, and a shredding chamber driven by the power mechanism. The top of the shredding chamber is provided with a feed inlet, and a shredding assembly is provided inside. A protective cover is movable at the feed inlet. A pressing plate that can reciprocate relative to the inner side wall of the protective cover is provided on the inner side wall. An elastic reset member is provided between the pressing plate and the inner side wall of the protective cover.

[0007] By adopting the above technical solution, during operation, the user puts the branches into the feed inlet of the crushing chamber, and the protective cover is closed on the feed inlet. When the branches come into contact with the pressing plate, the pressing plate moves backward relative to the inner wall of the protective cover under the pushing force of the branches (compressing the elastic reset member), thereby applying a downward pressure to the branches. The elastic reset member (such as a spring) provides a reset force, so that the pressing plate automatically returns to its original position after the branches pass through. The whole process is carried out under the cover of the protective cover to prevent debris from flying.

[0008] The spring reset component is mainly used to move the pressing plate away from the inside of the crushing chamber. After the protective cover is placed over the feed inlet, the pressing plate is manually moved to press the branches.

[0009] The protective cover effectively seals the feed inlet, solving the problem of debris splashing and improving operational safety and environmental cleanliness. The pressure plate helps branches fall smoothly into the crushing component, avoiding the phenomenon of branches "bridging" or "blocking," thereby improving crushing efficiency and continuity.

[0010] Optionally, the protective cover slides on the crushing chamber, and a guide surface is provided at one end.

[0011] By adopting the above technical solution, the protective cover is installed on the crushing chamber by sliding. Users can open or close the feed inlet by pushing and pulling the protective cover to slide along the guide surface. The guide surface guides the movement trajectory of the protective cover to ensure smooth opening and closing. In addition, the guide surface can exert a slight squeezing effect on the surface branches during the closing process, which facilitates the contact between the branches and the crushing components and improves the crushing effect.

[0012] Optionally, the crushing chamber is equipped with an electric push rod, the movable end of which is connected to the protective cover.

[0013] By adopting the above technical solution, the electric actuator is connected to the protective cover. The user starts the electric actuator through a control switch (such as a button or remote control). The movable end of the electric actuator pushes or pulls the protective cover to achieve automatic opening and closing. For example, the electric actuator opens the protective cover when feeding materials and automatically closes it after feeding. The electric actuator realizes the automated control of the protective cover, reduces the intensity of manual operation, and improves the efficiency of operation. It is especially suitable for scenarios with frequent opening and closing. The automated sliding protective cover further enhances the modernization level of the equipment, avoids direct contact between the user and the protective cover, and reduces the operational risk.

[0014] Optionally, a guide block is provided on the crushing chamber, and a guide groove is formed on the guide block. The direction of the guide groove is parallel to the direction of movement of the protective cover. A first slider slides and rotates in the guide groove. The first slider is connected to the protective cover. The movable end of the electric push rod is rotatably connected to the protective cover. A second slider is connected to the end of the protective cover away from the first slider. The second slider slides in the guide groove and can move along the width direction of the guide groove.

[0015] By adopting the above technical solution, the protective cover moves within the guide groove via a first slider and a second slider. The first slider can slide and rotate within the guide groove, allowing the protective cover to finely adjust its angle during movement. The second slider moves along the width direction of the guide groove, providing lateral flexibility. When the electric actuator drives the protective cover, the slider system ensures smooth movement. The slider and guide groove design increases the freedom of movement of the protective cover, preventing jamming caused by processing errors or deformation, and improving the reliability and durability of the equipment. The protective cover can be positioned more precisely under the drive of the electric actuator, ensuring a good seal when closed. The rotation function of the first slider allows the protective cover to adapt to uneven surfaces at the feed inlet or obstacles caused by excessive tree branch protrusions, reducing jamming caused by excessive tree branch protrusions. The width direction movement of the second slider allows the protective cover to automatically align when closed, thereby enhancing the protective effect and operational smoothness.

[0016] Optionally, a correction block is provided on the crushing chamber. The correction block is located on the guide groove of the guide block. The correction block can abut against the side of the second slider away from the first slider, and is used to squeeze the second slider toward the crushing assembly.

[0017] By adopting the above technical solution, when the protective cover is closed, the second slider moves in the guide groove to abut against the correction block. The correction block applies a squeezing force to the second slider in the direction of the crushing component, so that the protective cover fits tightly against the feed inlet. By squeezing the second slider, the correction block ensures the sealing of the protective cover in the closed state, effectively preventing debris from leaking from the gaps, improving the safety protection level, optimizing the final closing position of the protective cover, and enabling the pressing plate to apply pressure to the branches more effectively, thereby improving the feeding effect. It can also drive the protective cover to apply pressure to protruding branches, improving efficiency.

[0018] Optionally, the correction block slides on the guide block, and the sliding direction is parallel to the sliding direction of the first slider. A locking bolt is threaded onto the correction block, and the locking bolt can abut against the guide block.

[0019] By adopting the above technical solution, users can adjust the position of the sliding correction block to adapt to branches of different sizes or wear conditions, and then fix the correction block with locking bolts. During adjustment, the correction block moves in a direction parallel to the sliding direction of the first slider, thereby changing the degree of compression on the second slider. The locking bolts ensure the stability after adjustment and prevent the correction block from shifting. It can also stop the protective cover at different positions, which is convenient for feeding materials without fully opening it, and is suitable for workers with different operating habits.

[0020] Optionally, the pressing plate has multiple anti-slip protrusions on the side surface facing the inside of the crushing chamber.

[0021] By adopting the above technical solution, the anti-slip protrusions significantly improve the gripping force of the pressing plate on the branches, reduce the slippage or rebound of the branches during the feeding process, further avoid the "bridging" phenomenon, enhance the feeding guidance function of the pressing plate, and make the branches fall into the crushing area more smoothly, thereby improving the crushing efficiency and continuity.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The protective cover effectively seals the feed inlet, solving the problem of debris splashing and improving operational safety and environmental cleanliness; the setting of the pressing plate helps branches fall smoothly into the crushing component, avoiding the phenomenon of branches "bridging" or "supporting", thereby improving crushing efficiency and continuity. 2. The correction block ensures the sealing of the protective cover in the closed state by squeezing the second slider, effectively preventing debris from leaking from the gaps, improving the safety protection level, optimizing the final closing position of the protective cover, allowing the pressing plate to apply pressure to the branches more effectively, thereby improving the feeding effect, and can also drive the protective cover to apply pressure to protruding branches, improving efficiency. 3. The anti-slip protrusions significantly improve the gripping force of the pressing plate on the branches, reduce the slippage or rebound of the branches during the feeding process, further avoid the "bridging" phenomenon, enhance the feeding guidance function of the pressing plate, and make the branches fall into the crushing area more smoothly, thereby improving crushing efficiency and continuity. Attached Figure Description

[0023] Figure 1 This is an overall structural diagram of the pulverizing device in the embodiments of this application; Figure 2 This is a diagram illustrating the crushing roller in an embodiment of this application; Figure 3 This is a diagram illustrating the protective cover in an embodiment of this application; Figure 4 yes Figure 3 A magnified view of a portion of region A in the middle; Figure 5 This is a cross-sectional view of the protective cover in an embodiment of this application.

[0024] Reference numerals: 100, frame; 200, power mechanism; 300, crushing chamber; 400, crushing assembly; 410, crushing roller; 420, crushing teeth; 500, protective cover; 510, guide surface; 520, sliding hole; 530, concealed groove; 600, pressing plate; 610, anti-slip protrusion; 620, sliding rod; 700, elastic reset component; 810, electric push rod; 820, guide block; 821, guide groove; 822, adjusting hole; 830, first slider; 840, second slider; 850, correction block; 851, driving surface; 860, locking bolt. Detailed Implementation

[0025] The following combination Figures 1 to 5 This application will be described in further detail.

[0026] The following will describe in detail a specific embodiment of a garden branch shredder in conjunction with the technical solution of this application; it should be understood that the embodiments described herein are intended to explain and illustrate this application, and not to constitute any limitation.

[0027] Reference Figures 1 to 5 The garden branch shredding device provided in this embodiment has a core improvement in the sealing of the feed inlet and the auxiliary feeding structure. The device mainly includes a frame 100, a power mechanism 200, a shredding chamber 300, and a protective cover 500 movably disposed at the feed inlet at the top of the shredding chamber 300. The inner side of the protective cover 500 is provided with a pressing plate 600 that can be reciprocated by an elastic reset member 700. In use, the operator closes the protective cover 500, and the branches are fed into the feed inlet and press against the pressing plate 600. During the process of manually pressing down on the branches or driving the protective cover 500 to close through the mechanism, the pressing plate 600 applies continuous downward pressure to the branches, guiding them smoothly into the interior of the shredding chamber 300. At the same time, the protective cover 500 effectively isolates the splashing of debris during the shredding process.

[0028] The frame 100 of the garden branch shredder provides support for the entire device, and the power mechanism 200 is fixedly mounted on the frame 100. The output shaft of the power mechanism 200 is connected to the shredding component 400 located inside the shredding chamber 300, driving it to rotate at high speed to shred the material. A feed inlet is opened at the top of the shredding chamber 300 for feeding in branches to be processed.

[0029] The crushing assembly 400 includes two crushing rollers 410 rotatably connected in the crushing chamber 300. The crushing rollers 410 are provided with crushing teeth 420. The two crushing rollers 410 are arranged in parallel and the crushing teeth 420 are arranged in an alternating manner. The power mechanism 200 includes two drive motors, each corresponding to one of the two crushing rollers 410.

[0030] In other embodiments, the power mechanism 200 may include a servo motor, a drive gear, and a driven gear. The servo motor is detachably connected to the crushing chamber 300 by bolts. The output shaft of the servo motor is connected to one of the crushing rollers 410. The drive gear is rotatably connected to the crushing chamber 300 and connected to the output shaft of the servo motor. The driven gear is rotatably connected to the crushing chamber 300 and meshes with the drive gear. The driven gear is coaxially connected to the other crushing roller 410.

[0031] To overcome the problem of debris splashing caused by an open feed inlet in existing technologies, a sliding protective cover 500 is installed at the feed inlet. This protective cover 500 engages with a guide block 820 fixed to the outer wall of the crushing chamber 300 via a slider structure at its bottom. Specifically, the guide block 820 has an elongated guide groove 821. One end of the protective cover 500 is connected to a first slider 830, which can slide and slightly rotate within the guide groove 821. The first slider 830 is cylindrical. The other end is connected to a second slider 840, which is square-shaped and its thickness is less than the width of the guide groove 821, and can be slightly adjusted in the width direction of the guide groove 821. This dual-slider design gives the protective cover 500 a certain degree of self-adaptability during opening and closing, preventing jamming caused by component machining errors or obstruction by tree branches.

[0032] To automate the opening and closing of the protective cover 500, an electric actuator 810 is installed on the outer wall of the crushing chamber 300. The cylinder end of the electric actuator 810 is fixed by a support, and its movable end is rotatably connected to the side of the first slider 830 via a rotating shaft. By activating the electric actuator 810 via an external control switch, the protective cover 500 can be driven to open or close stably along the guide groove 821, greatly reducing manual operation and improving work efficiency. An inclined guide surface 510 is also provided at the end of the protective cover 500 facing the inlet. When the protective cover 500 is closed, this guide surface 510 can contact and gather the protruding branches on the surface before the cover body, providing initial guidance and compression in preparation for subsequent crushing.

[0033] To further ensure the sealing of the protective cover 500 when closed and its pressing effect on branches, an adjustable correction block 850 is also provided on the guide block 820. The correction block 850 is located in the guide groove 821, and its installation position corresponds to the location of the second slider 840 when the protective cover 500 is fully closed. When the protective cover 500 is closed by the electric push rod 810, the second slider 840 moves to abut against the correction block 850, and the abutment surface forms an inclined driving surface 851. As the second slider 840 approaches the correction block 850, it causes the protective cover 500 to press down. The correction block 850 applies a squeezing force pointing inward to the crushing chamber 300 to the second slider 840, forcing the entire protective cover 500 to move slightly inward, thereby pressing it more tightly against the edge of the feed inlet and effectively preventing debris from escaping from the gaps. At the same time, this inward pressure is also transmitted through the protective cover 500 to the pressing plate 600 on its inner side, enhancing the downward pressure on the branches.

[0034] In other embodiments, the correction block 850 itself can also slide along a direction parallel to the guide groove 821, thereby adjusting its contact position with the second slider 840. To facilitate the fixing of the correction block 850, a locking bolt 860 is threaded onto the correction block 850, and multiple adjustment holes 822 are provided on the guide groove 821. The locking bolt 860 can enter the adjustment holes 822 to lock the correction block 850. After the position is properly adjusted, the correction block 850 can be firmly locked in the current position by tightening the locking bolt 860 connected to the correction block 850, so that it penetrates into the adjustment hole 822. This allows the equipment to adapt to branches of different diameters or wear of parts after long-term use, allowing the operator to flexibly adjust the final closed position and clamping force of the protective cover 500, and even fix the protective cover 500 in a half-open state to adapt to different feeding habits.

[0035] A sliding hole 520 is provided on the top wall of the protective cover 500. A sliding rod 620 is slidably connected in the sliding hole 520. The pressing plate 600 is fixedly connected to the sliding rod 620 and is slidably connected to the protective cover 500 through the sliding rod 620. The elastic reset member 700 includes a compression spring, is set in the sliding hole 520, and is connected to the sliding rod 620. In order to reduce the interference of the pressing rod with the sliding of the protective cover 500, a hidden groove 530 is provided on the inner wall of the protective cover 500. The pressing plate 600 is located in the hidden groove 530, and the two ends of the pressing plate 600 are provided with arc chamfers. In the natural state, the pressing plate 600 protrudes slightly from the inner edge of the protective cover 500 under the action of the spring, and has the force to drive the pressing plate 600 closer to the inside of the crushing chamber 300. When a branch is inserted and presses against the pressing plate 600, the pressing plate 600 compresses the spring and retracts inward toward the protective cover 500. This process provides a continuous and flexible downward pressure on the branch, effectively preventing the branch from bridging at the feed inlet. To further enhance the guiding effect, several anti-slip protrusions are provided on the surface of the pressing plate 600 facing the inside of the crushing chamber 300. These protrusions increase the friction with the surface of the branch, effectively reducing the slippage or rebound of the branch during the pressing process, ensuring that it is stably fed into the crushing assembly 400.

[0036] In other embodiments, the compression spring is in its natural state, causing the pressing plate 600 to move away from the inside of the crushing chamber 300, and the pressing plate 600 presses the tree branch by manual pressing.

[0037] In operation, the operator activates the electric actuator 810 via the control switch, opens the protective cover 500, and places the branches to be crushed into the feed inlet. Subsequently, the electric actuator 810 drives the protective cover 500 to close. During the closing process, the guide surface 510 of the protective cover 500 first gathers the branches together, and then the protective cover 500, under the combined action of the electric actuator 810 and the correction block 850, is tightly pressed against the feed inlet. At this time, the top of the branches abuts against the pressing plate 600 with anti-slip protrusions, and the operator manually presses down on the pressing plate 600 to help overcome friction with the bin wall and the supporting force generated by its own looseness, allowing it to fall smoothly into the crushing area. The entire crushing process is carried out under the protection of the protective cover 500, effectively blocking the debris generated by the high-speed rotating crushing component 400 within the bin.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A garden branch shredding device, comprising a frame (100), a power mechanism (200) mounted on the frame (100), and a shredding chamber (300) driven by the power mechanism (200), wherein the top of the shredding chamber (300) is provided with a feed inlet, and a shredding assembly (400) is provided inside, characterized in that: A protective cover (500) is movable at the feed inlet. A pressing plate (600) that can reciprocate relative to the inner wall of the protective cover (500) is provided. An elastic reset member (700) is provided between the pressing plate (600) and the inner wall of the protective cover (500).

2. The garden branch shredder according to claim 1, characterized in that: The protective cover (500) slides on the crushing chamber (300), and a guide surface (510) is provided at one end.

3. The garden branch shredder according to claim 2, characterized in that: An electric push rod (810) is provided on the crushing chamber (300), and the movable end of the electric push rod (810) is connected to the protective cover (500).

4. The garden branch shredder according to claim 3, characterized in that: A guide block (820) is provided on the crushing chamber (300), and a guide groove (821) is provided on the guide block (820). The opening direction of the guide groove (821) is parallel to the movement direction of the protective cover (500). A first slider (830) slides and rotates in the guide groove (821). The first slider (830) is connected to the protective cover (500). The movable end of the electric push rod (810) is rotatably connected to the protective cover (500). A second slider (840) is connected to one end of the protective cover (500) away from the first slider (830). The second slider (840) slides in the guide groove (821) and can move along the width direction of the guide groove (821).

5. The garden branch shredder according to claim 4, characterized in that: A correction block (850) is provided on the crushing chamber (300). The correction block (850) is located on the guide groove (821) of the guide block (820). The correction block (850) can abut against the side of the second slider (840) away from the first slider (830) to squeeze the second slider (840) towards the crushing assembly (400).

6. The garden branch shredder according to claim 5, characterized in that: The correction block (850) slides on the guide block (820) and the sliding direction is parallel to the sliding direction of the first slider (830). The correction block (850) is threaded with a locking bolt (860) that can abut against the guide block (820).

7. The garden branch shredder according to any one of claims 1-6, characterized in that: The pressing plate (600) has multiple anti-slip protrusions on the side surface facing the inside of the crushing chamber (300).

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