A pulverizing device

Abstract

The application discloses a kind of pulverizing device, especially foldable storage pulverizing device, solve the problem that further compact and small of pulverizing device in prior art is difficult to achieve due to the limitation of support frame.The pulverizing device provided by the application comprises a pulverizing assembly, a support assembly and a frame assembly.The pulverizing assembly includes a motor, a power supply compartment, a feeding part, a cutter body and a discharging part.The support assembly is connected to the pulverizing assembly.The frame assembly is fixedly connected to the support assembly to support the pulverizing assembly.An open space is formed in front of the support assembly.The pulverizing assembly can rotate along a first axis X1 passing through the support assembly in the open space.The pulverizing assembly has a first position in a working state and a second position in a storage state, and can be switched between the two positions.In the working state, the cutter body rotates with the motor, the feed enters from the feeding part, and the discharge part discharges after being pulverized by the cutter body.

Description

Technical Field

[0001] This invention relates to the field of pulverizing devices, and in particular to foldable and retractable pulverizing devices. Background Technology

[0002] Garden shredders are typically tall and bulky, making them inconvenient to transport and store. Existing technology provides a shredder whose shredding components can be folded and stored in a collection box, partially solving the problem of the large size of the shredder when stored, as illustrated in Chinese invention patent application CN 202110306249.5.

[0003] However, existing technologies have many problems. For example, in the working state, the discharge port of the crushing component is blocked by the collection part, making it impossible to observe the discharge situation and the collection of crushed material in the collection part. Secondly, the support part of the crushing device is usually a frame structure. The crushing component can rotate along one end of the support part, and in the storage state, the crushing component is fixed to the other end to lock the storage state. However, this design needs to avoid interference between the crushing component and the frame structure of the support part to prevent the crushing component from colliding with the support part during rotation and storage. As a result, the crushing component is subject to the above-mentioned limitations. Furthermore, while maintaining the existing performance, it is difficult to make the layout design of the internal components of the crushing component more compact, and thus it is difficult to make the shape of the crushing component more compact. Moreover, some crushing devices use the method of removing the battery to reduce the external size of the crushing component when stored, thereby achieving a more compact layout and smaller size of the crushing component on the basis of rotation and folding. However, this solution greatly reduces the ease of use of the crushing device. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a crushing device to solve at least one of the above problems.

[0005] To achieve the above technical objectives, the present invention provides a pulverizing device, comprising:

[0006] The crushing assembly includes a motor, power supply compartment, feeding section, blade body, and discharge section;

[0007] A support component is connected to the crushing component; and,

[0008] A frame assembly is fixedly connected to the support assembly to support the crushing assembly;

[0009] An open space is formed in front of the support component, and the crushing component can rotate in the open space along a first axis X1 passing through the support component.

[0010] The crushing component has a first position in the working state and a second position in the storage state, and can switch between the two.

[0011] In operation, the blade rotates with the motor, and the material enters through the feeding section, is crushed by the blade, and is discharged through the discharge section.

[0012] Preferably, the frame assembly includes a bottom and a support portion extending upward from the bottom, the support assembly being fixedly connected to the end of the support portion, and an open storage space being formed between the bottom and the support portion below the first axis X1;

[0013] In the working state, at least a portion of the material discharge section is placed and exposed in the storage space;

[0014] When folded, the blade is placed in the storage space.

[0015] Preferably, in the working state, the orthographic projections of the motor and the blade body on the bottom are located within the contour range of the bottom;

[0016] In the stowed state, the orthographic projections of the motor and the power supply compartment onto the bottom are within the outline of the bottom.

[0017] Preferably, the support portion has a clearance notch, and in the retracted state, at least a portion of the discharge portion passes through the clearance notch.

[0018] Preferably, in the working state, the motor is located on the side close to the first axis X1, the power supply compartment is located on the same side as the motor, and the blade body is located on the side away from the first axis X1.

[0019] Preferably, the support assembly includes a support base, the crushing assembly is fixedly connected to the support base, and the support base is rotatable along the first axis X1.

[0020] Preferably, the support assembly is provided with a locking element for locking the crushing assembly when the crushing assembly is in a first position or a second position.

[0021] Preferably, the support assembly is also equipped with an unlocking switch. When the crushing assembly is locked in the first position, the unlocking switch powers on the crushing device to put the crushing device into standby mode or to start working.

[0022] Preferably, the material discharge section is provided with a hook for suspending the collection bag.

[0023] Preferably, the vertical distance from the discharge end of the material discharge section to the lower end face of the blade body is L4, where 50mm≤L4≤300mm.

[0024] By adopting the above technical solution, the present invention has the following beneficial effects.

[0025] 1. The present invention provides a crushing device, which forms an open space in front of the support component, and the crushing component can rotate in the open space without interfering with the support component. Therefore, the crushing component can be reasonably arranged according to the size and function of each component to make the internal layout of the crushing component more compact, and the shape of the crushing component can be further made smaller, so that the overall size of the crushing device in the working state and the storage state can be further reduced.

[0026] 2. The frame component includes a bottom and a support extending upwards from the bottom, forming a stable pyramid-like structure. This structure can effectively support the operation of the crushing component and maintain its stability and reliability. An open storage space is formed below the first axis X1 between the bottom and the support. The open storage space can store the crushing component in the stored state and facilitates observation of the material discharge and collection in the working state.

[0027] 3. In the working state, the orthographic projections of the motor and blade on the bottom are located within the bottom contour range. In the stored state, the orthographic projections of the motor and power supply compartment on the bottom are also located within the bottom contour range. This ensures that the center of gravity of the crushing components falls within the bottom contour range, thereby improving the stability of the crushing device in both the working and stored states. It also reduces the probability of the crushing device shaking due to vibrations caused by the rotation of the motor and blade in the working state, and reduces the probability of tipping over when the operator moves the crushing device in the stored state.

[0028] 4. The material dropping section needs to be long enough to concentrate the material and prevent it from scattering. By forming a clearance gap on the support section, at least part of the material dropping section passes through the clearance gap in the stored state, so as to avoid the longer material dropping section from touching and interfering with the support section in the stored state, thus affecting the storage effect.

[0029] 5. By placing the motor on the side closer to the first axis X1, the power supply compartment on the same side as the motor, and the blade body on the side farther from the first axis X1, the crushing assembly can form a near-square structure. This results in a more compact internal layout and a smaller overall size for the crushing assembly. Furthermore, it avoids the need for increased structural strength in the support assembly due to the crushing assembly's center of gravity being too far from the first axis X1, thus reducing weight and cost. Shifting the center of gravity towards the first axis X1 reduces the pressure load on the support assembly, lowering its weight and production costs.

[0030] 6. By setting a support base on the support component, the crushing component is fixedly connected to the support base, so that crushing components of different specifications and models can use the same support component, thereby reducing the cost of product design and development and the selling price of the product, and also facilitating the disassembly, maintenance and replacement of the crushing component.

[0031] 7. Through the design of the first rotating shaft and locking component in the support assembly, as well as the supporting base and mating component that cooperate with it, the stable locking of the crushing component position and convenient position switching are achieved.

[0032] 8. By configuring an unlocking switch on the support component, the safety risks caused by accidental operation can be prevented when the crushing device is not in the first position of operation.

[0033] 9. By using hooks to suspend the collection bags, the large-sized collection boxes in existing technologies are eliminated, reducing production processes, saving production costs, lowering product prices, and achieving energy conservation and emission reduction. At the same time, it also avoids the need for operators to carry and move heavy collection boxes when dumping waste, reducing the workload of operators, improving their work comfort and product user experience.

[0034] 10. By controlling the vertical distance from the discharge end of the material feeding section to the lower end face of the blade body within a reasonable range, it is possible to avoid the operator accidentally putting their hand or tool into the blade body when turning over the debris in the collection bag or cleaning the debris stuck to the discharge end of the material feeding section during operation, thus avoiding safety risks.

[0035] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the working state of a pulverizing device according to an embodiment of the present invention;

[0037] Figure 2 This is a cross-sectional view of a crushing device in operation according to an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of the storage state of a crushing device in an embodiment of the present invention;

[0039] Figure 4 This is an exploded view of a crushing device according to an embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram of the combination of support components and frame components in an embodiment of the present invention;

[0041] Figure 6 This is an exploded view of the support component and the frame component in an embodiment of the present invention;

[0042] Figure label:

[0043] 100. Crushing assembly; 110. Housing; 120. Motor; 130. Power supply compartment; 131. Battery interface; 132. Battery pack; 140. Blade body; 141. Lower end face of blade body; 150. Feeding section; 160. Discharge section; 161. Hook; 162. Bag clamp; 163. Discharge end.

[0044] 200, Support component; 201, Open space; 202, First pivot; 203, Locking component; 210, Support base; 211, Mating component; 2111, First locking slot; 2112, Second locking slot; 212, Unlocking switch; 213, First damping component; 214, Second damping component.

[0045] 300. Frame component; 301. Bottom; 302. Support; 303. Connecting reinforcement; 304. Clearance gap; 310. Storage space. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0047] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" or "a number" means two or more, unless otherwise expressly defined.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] In the prior art, the support structure at the bottom of the crushing device is usually a closed structure, such as Chinese invention patent application CN 202110306249.5. However, the prior art has many problems. For example, in the working state, the discharge port of the crushing component is blocked by the collection part, making it impossible to observe the discharge situation and the collection of crushed material in the collection part; the support part of the crushing device is usually a frame structure, and the crushing component can rotate along one end of the support part. In the storage state, the crushing component is fixed to the other end to lock the storage state. The design of the crushing component needs to avoid interference with the frame structure of the support part to prevent the crushing component from colliding with the support part during rotation and storage. Therefore, the design of the crushing component is limited by the above-mentioned limitations, making it difficult to make the layout of the internal components of the crushing component compact enough, and consequently, it is also difficult to make the shape of the crushing component small.

[0052] Example 1:

[0053] A pulverizing device proposed in the embodiments of the present invention, such as Figures 1 to 3 As shown, the device includes a crushing assembly 100, a support assembly 200, and a frame assembly 300. The support assembly 200 is connected to the crushing assembly 100, and the frame assembly 300 is fixedly connected to the support assembly 200 to support the crushing assembly 100. An open space 201 is formed in front of the support assembly 200, and the crushing assembly 100 can rotate freely in the open space 201 along a first axis X1 passing through the support assembly 200. The crushing assembly 100 includes a housing 110, a motor 120, a power supply compartment 130, a blade 140, a feeding section 150, and a discharge section 160. The motor 120, the power supply compartment 130, and the blade 140 are housed in the housing 110. The power supply compartment 130 includes a battery interface 131 and a cavity for accommodating a battery pack 132, which provides power to the crushing device.

[0054] The crushing component 100 can rotate relative to the supporting component 200 along the first axis X1. When the crushing component 100 is flipped upward along the first axis X1 to the first position, the crushing component 100 is in the working state, with most of the crushing component 100 positioned above the first axis X1. The feeding part 150, the blade body 140, and the discharge part 160 are arranged sequentially from top to bottom. The motor 120 drives the blade body 140 to rotate along the second axis X2, which is approximately horizontal. The material to be crushed is fed into the feeding part 150, and after being cut and crushed by the rotating blade body 140, it is discharged from the discharge part 160. When the crushing component 100 is flipped downward along the first axis X1 to the second position, the crushing component 100 is in the retracted state, with the second axis X2 approximately vertical. Most of the crushing component 100 is positioned below the first axis X1, with the blade body 140 also positioned below the first axis X1, significantly reducing the height of the crushing device.

[0055] By forming an open space 201 in front of the support component 200, and allowing the crushing component 100 to rotate within the open space 201, the crushing component 100 will not interfere with the support component 200. Therefore, the crushing component 100 can be rationally arranged according to the size and function of each component to make the internal layout of the crushing component 100 more compact. Consequently, the shape of the crushing component 100 can be further made smaller, so that the overall size of the crushing device can be further reduced in both the working state and the storage state.

[0056] In some other embodiments, the crushing assembly 100 is also equipped with a fixed blade. The material is fed into the blade body 140 and the fixed blade, and is cut and squeezed into fragments by the relative movement of the two.

[0057] In some other embodiments, the crushing assembly 100 is also provided with a material removal shaft, which is close to the lower part of the blade body 140 and is used to remove the crushed material wrapped around the blade body 140.

[0058] In some other embodiments, the motor 120 drives the cutter body 140 to rotate via a transmission mechanism at a reduced speed. Preferably, a transmission mechanism with a large transmission ratio is used, and thus the motor 120 can be a high-speed motor 120. More preferably, the transmission mechanism is a planetary gear set.

[0059] In this preferred embodiment, a hook 161 is provided on the outer wall of the material discharge section 160 for hanging the collection bag. By using the hook 161 to hang the collection bag, the large-sized collection box in the prior art is eliminated, reducing production process steps, saving production costs, lowering product prices, and achieving energy conservation and emission reduction effects. At the same time, it also avoids the need for operators to carry and move heavy collection boxes when dumping waste, reducing the workload of operators, improving operator comfort and product user experience.

[0060] In this preferred embodiment, the longitudinal cross-sectional profile of the material dropping section 160 is wider at the top and narrower at the bottom, so that the crushed material can be collected more concentratedly during the falling process, reducing the probability of the crushed material scattering.

[0061] In this preferred embodiment, the vertical distance from the discharge end 163 of the discharge section 160 to the lower end face 141 of the blade body is L4, where 50mm ≤ L4 ≤ 300mm. By controlling the vertical distance from the discharge end 163 of the discharge section 160 to the lower end face 141 of the blade body within a reasonable range, it is possible to avoid the safety risk caused by operators accidentally inserting their hands or tools into the blade body 140 when turning over the debris in the collection bag or cleaning the debris adhering to the discharge end 163 of the discharge section 160 during operation.

[0062] In some other embodiments, a bag clip 162 is provided at the bottom 301 of the housing 110, and an accommodating space is formed between the housing 110 and the bag clip 162 to accommodate unused collection bags. Operators can access the collection bags at any time, thereby improving the operator's user experience.

[0063] Example 2:

[0064] like Figures 1 to 5 As shown, based on the above embodiments, in this embodiment, the frame assembly 300 includes a bottom 301 and a support portion 302. The support portion 302 extends upward from the bottom 301, and the bottom 301 is used to install foot pads and / or casters. The support assembly 200 is fixedly connected to the end of the support portion 302, and an open storage space 310 is formed between the bottom 301 and the support portion 302 below the first axis X1.

[0065] In the working state, at least a portion of the material discharge section 160 is placed and exposed in the storage space 310. Specifically, the material discharge section 160 includes a discharge port located at the end of the material discharge section 160, and the discharge port is placed and exposed in the storage space 310.

[0066] In the stored state, most of the crushing components 100 are placed in the storage space 310. Specifically, the blade 140, the feeding section 150 and the discharge section 160 are placed in the storage space 310, and at least part of the motor 120 and at least part of the power supply compartment 130 are placed in the storage space 310.

[0067] Specifically, the frame assembly 300 consists of two steel pipes processed by bending and several connecting reinforcements 303. The two steel pipes are mirror-symmetrical in shape. The straight parts of the two steel pipes and the connecting reinforcements 303 are fixedly connected to form the bottom 301 of the frame assembly 300. The upward-curving parts of the two steel pipes and the connecting reinforcements 303 form the support part 302 of the frame assembly 300. The support part 302 also includes cantilevered parts at the ends of the steel pipes. The support assembly 200 is fixedly connected to the cantilevered parts of the steel pipes, thereby enabling the frame assembly 300 to support the crushing assembly 100. The two steel pipes form an open storage space 310 below the first axis X1. The straight parts of the two steel pipes roughly constitute the length of the storage space 310, the upward-curving parts of the two steel pipes roughly constitute the height of the storage space 310, and the distance between the two steel pipes roughly constitutes the width of the storage space 310.

[0068] In some other embodiments, the frame assembly 300 may also adopt an A-frame structure.

[0069] In some other embodiments, the bottom 301 of the frame assembly 300 may also be a single piece of sheet material.

[0070] In some other embodiments, the support 302 may also be formed from a steel pipe, steel beam or other structure.

[0071] The frame assembly 300 includes a bottom 301 and a support portion 302 extending upward from the bottom 301, forming a stable pyramid-like structure. This structure can effectively support the operation of the crushing assembly 100 and maintain its stability and reliability. An open storage space 310 is formed between the bottom 301 and the support portion 302 below the first axis X1. The open storage space 310 can store the crushing assembly 100 in the stored state and facilitates observation of the material discharge from the discharge section 160 and the material collection during operation.

[0072] Example 3:

[0073] like Figures 1 to 3As shown in Embodiment 2, in this embodiment, during operation, the orthographic projections of the motor 120 and the blade 140 on the bottom 301 are located within the outline of the bottom 301. This ensures that the center of gravity of the crushing component 100 falls within the outline of the bottom 301, thereby improving the stability of the crushing device during operation and reducing the likelihood of shaking caused by vibrations from the rotation of the motor 120 and the blade 140. In the stowed state, the orthographic projections of the motor 120 and the power supply compartment 130 on the bottom 301 are located within the outline of the bottom 301. This ensures that the center of gravity of the crushing component 100 falls within the outline of the bottom 301, thereby improving the stability of the crushing device in the stowed state and reducing the likelihood of tipping over when the operator moves the crushing device in the stowed state.

[0074] Example 4:

[0075] like Figures 1 to 3 As shown in Embodiment 2, in this embodiment, a clearance notch 304 is formed on the support portion 302. In the retracted state, at least a portion of the discharge portion passes through the clearance notch 304. The discharge portion 160 needs to have sufficient length to concentrate the discharge and prevent it from scattering. By forming a clearance notch 304 on the support portion 302, at least a portion of the discharge portion 160 passes through the clearance notch 304 in the retracted state, thus avoiding the longer discharge portion 160 from touching and interfering with the support portion 302 in the retracted state, which would affect the retracting effect.

[0076] Example 5:

[0077] like Figures 1 to 2 As shown, based on the above embodiments, in this embodiment, the motor 120 is located on the side close to the first axis X1, the power supply compartment 130 is located on the same side as the motor 120, and the blade 140 is located on the side away from the first axis X1. With this design, the power supply compartment 130 and the motor 120 are located on one side of the crushing assembly 100, while the feed section 150, the blade 140, and the discharge section are located on the other side of the crushing assembly 100. The crushing assembly 100 can form a nearly square structure, thereby making the internal layout of the crushing assembly 100 more compact and the external dimensions of the crushing assembly 100 smaller. Furthermore, since the battery pack 132 and motor 120 are relatively heavy, in order to avoid the center of gravity of the crushing component 100 being too far from the first axis X1, which would require the support component 200 to have a correspondingly higher structural strength and thus increase the weight and cost of the support component 200, the center of gravity of the crushing component 100 can be effectively shifted towards the first axis X1 by setting the motor 120 on the side close to the first axis X1, the power supply compartment 130 on the same side as the motor 120, and the blade 140 on the side away from the first axis X1. This can effectively reduce the pressure burden on the support component 200 and lower its weight and production cost.

[0078] Example 6:

[0079] like Figures 1 to 4 As shown, based on the above embodiments, in this embodiment, the support component 200 includes a support base 210, which is rotatable along a first axis X1. The crushing component 100 is fixedly connected to the support base 210, thereby allowing the crushing component 100 to rotate relative to the support component 200 along the first axis X1. By providing the support base 210 on the support component 200 and fixing the crushing component 100 to the support base 210, crushing components 100 of different specifications and models can use the same support component 200, thereby reducing the cost of product design and development and the selling price of the product. It also facilitates the disassembly, maintenance, and replacement of the crushing component 100.

[0080] Example 7:

[0081] like Figures 1 to 6 As shown in Embodiment Six, in this embodiment, the support assembly 200 includes a first rotating shaft 202 and a locking member 203. The first rotating shaft 202 is mounted on the support portion 302 along the first axis X1. The support base 210 is sleeved on the first rotating shaft 202 and can rotate along the first axis X1. The support assembly 200 is provided with the locking member 203, and the support base 210 is fixed with a mating member 211. The mating member 211 is provided with a first locking groove 2111 corresponding to the first position and a second locking groove 2112 corresponding to the second position. When the crushing assembly 100 is in the first position, the locking member 203 can pass through the first locking groove 2111, and the support base 210 is limited by the first rotating shaft 202 and the locking member 203 and cannot move, thereby locking the crushing assembly 100 in the first position. When the crushing component 100 is in the second position, the locking member 203 can pass through the second locking groove 2112, and the support base 210 is limited and cannot move by the first rotating shaft 202 and the locking member 203, thereby locking the crushing component 100 in the second position. Through the design of the first rotating shaft 202 and the locking member 203 in the support component 200, as well as the supporting base 210 and the mating member 211 that cooperate with them, the stable locking of the position of the crushing component 100 and the convenient position switching are achieved.

[0082] In this preferred embodiment, the locking member 203 also includes a reset unit. After the operator pulls out the locking member 203, the crushing component 100 can be rotated. When the crushing component 100 completes the position switching, the locking member 203 can automatically reset to complete the locking.

[0083] In this preferred embodiment, the support component 200 is also equipped with an unlocking switch 212. When the crushing component 100 is locked in the first position, at least a portion of the locking member 203 passes through the first locking groove 2111 to contact and trigger the unlocking switch 212, thereby energizing the crushing device so that the crushing device is in standby mode or in operation.

[0084] By configuring an unlocking switch 212 on the support component 200, the safety risks caused by accidental operation of the crushing component 100 are prevented when the crushing device is not in the first position of working state.

[0085] In this preferred embodiment, the support component is further provided with a first damping element, which is pressed against the mating component. The first damping element provides damping force during the rotation of the crushing component to counteract part of the gravity when the crushing component rotates downward, thereby reducing the labor burden on the operator.

[0086] In this preferred embodiment, the support assembly is further provided with a second damping element. The second damping element is pressed into the support base and provides damping force during the rotation of the crushing assembly to counteract part of the gravity when the crushing assembly rotates downward, thereby reducing the labor burden on the operator.

[0087] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. A pulverizing device, characterized in that, include: The crushing assembly includes a motor, power supply compartment, feeding section, blade body, and discharge section; A support assembly is connected to the crushing assembly. The support assembly includes a support base and a first rotating shaft. The crushing assembly is fixedly connected to the support base. and, A frame assembly, connected to the support assembly to support the crushing assembly, the frame assembly including a bottom and a support portion extending upward from the bottom, the support base being rotatably connected to the end of the support portion via a first pivot and rotating in a vertical space along a first axis passing through the first pivot axis, an open storage space being formed between the bottom and the support portion below the first axis; An open space is formed in front of the support component, and the crushing component can rotate in the open space along the first axis; The crushing component has a first position in the working state and a second position in the storage state, and can switch between the two. In operation, the blade rotates with the motor. Material enters through the feeding section, is crushed by the blade, and exits through the discharge section. At least a portion of the discharge section is placed in and exposed within the receiving space. The orthographic projections of the motor and the blade onto the bottom are within the outline of the bottom. The motor is positioned closer to the first axis, the power supply compartment is positioned on the same side as the motor, and the blade is positioned away from the first axis. In the stowed state, the blade is placed in the storage space, and the orthographic projections of the motor and the power supply compartment on the bottom are located within the outline of the bottom.

2. The pulverizing device as described in claim 1, characterized in that, The support portion has a clearance notch, and in the retracted state, at least a portion of the material discharge portion passes through the clearance notch.

3. The pulverizing device as described in claim 1, characterized in that, The support component is equipped with a locking element, which is used to lock the crushing component when the crushing component is in a first position or a second position.

4. The pulverizing device as described in claim 3, characterized in that, The support component is also equipped with an unlocking switch, and the locking element activates the unlocking switch when the crushing component is locked in the first position.

5. The pulverizing device as described in claim 1, characterized in that, The material discharge section is equipped with hooks for suspending the material collection bags.

6. The pulverizing device as described in claim 1, characterized in that, The vertical distance from the discharge end of the material discharge section to the lower end face of the cutter body is L4, where 50mm≤L4≤300mm.

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