A waste disposal apparatus

Abstract

The present application relates to garbage disposal equipment technical field, disclose a kind of garbage disposal equipment, including support box, active delivery part and driven bag breaking part, active delivery part is equipped with by two columns of support shafts with height difference formed receiving surface, for receiving and guiding bagged garbage to tilt and slide;Driven bag breaking part is equipped with bag breaking blade linked with active delivery part, bag breaking blade is passed out from the receiving surface downward to upward with delivery action, and the garbage bag in sliding state is punctured and incised, and when active delivery part resets, it falls back downward, and the formed breach is further torn and promotes bag body to separate.The present application can improve the degree of opening of garbage bag, reduce bag body to hang sword, entangle sword, improve the stability of continuous bag breaking treatment.

Description

Technical Field

[0001] This invention relates to the field of waste treatment equipment technology, and specifically to a waste treatment device. Background Technology

[0002] With the development of centralized collection and sorting technologies for household waste, it is often necessary to break open garbage bags during the transportation and sorting of household waste, kitchen waste, and other solid waste. This releases the contents of the bags, facilitating subsequent screening, sorting, transportation, or other resource recovery processes. If bagged waste enters subsequent processing equipment without being effectively broken open, the bags tend to clump the waste together, hindering proper dispersion and reducing the effectiveness of subsequent screening equipment in identifying, screening, and separating different types of waste.

[0003] Existing garbage bag breaking equipment typically uses blades to cut garbage bags that move with the conveyor mechanism. For example, rotating cutter rollers, reciprocating cutters, or fixed bag-breaking blades can be installed above or to the side of the conveyor belt. The relative movement between the garbage bag and the blades causes the blades to pierce or slice across the surface of the garbage bag, thus creating a tear. Some bag-breaking equipment uses a conveyor mechanism and a blade-carrying mechanism moving in opposite directions to clamp the bagged garbage, and the blades cut open the garbage bag during the transport of the garbage. In addition, for some mixed household waste, equipment such as dual-shaft shredders can be used to directly tear or shred the bagged garbage.

[0004] However, garbage bags are typically made of flexible materials such as plastic film, which are lightweight, soft, and easily deformable. The shape, size, and filling density of the garbage inside the bag vary considerably. When the blade comes into contact with the garbage bag, if the bag is not in a relatively stable tension state, the force applied by the blade can easily cause the bag to dent, wrinkle, or shift synchronously with the blade, making it difficult to form a stable relative cutting motion between the blade and the bag. Therefore, in actual bag-breaking processes, the blade may push the garbage bag forward without effectively cutting into the bag, or only create a small cut in a localized area. This phenomenon is particularly pronounced for garbage bags with low filling density, uneven internal material distribution, or a loose surface, resulting in a large, intact connecting area remaining in the bag after a single break, making it difficult for the garbage inside to fully dissipate.

[0005] To improve bag-breaking efficiency, some existing equipment enhances the crushing effect by increasing the number of blades, increasing blade rotation speed, or extending the blades further into the garbage. However, when the blades continue to rotate or move relative to the garbage bag, the ripped plastic bag can easily become caught on the blades, blade shaft, or other moving parts, leading to entanglement, accumulation, or even jamming. If the punctured garbage bag cannot detach from the blades in time, it may cover subsequent blades or prevent other bagged garbage from entering the bag-breaking area, thus reducing the stability of continuous equipment operation.

[0006] Meanwhile, the size and extent of a tear created by simply piercing or slicing the surface of a garbage bag largely depend on the bag's orientation when it enters the equipment and the contact point between the blade and the bag. When the garbage bag is loose, folded, or partially stacked, even if the blade has pierced the bag, it may only create a few localized perforations or short cuts, which may not be enough to further tear the bag along the cuts. Therefore, the degree of tearing may still be insufficient.

[0007] Furthermore, while using equipment such as dual-shaft shredders to directly and forcibly crush bagged waste increases the probability of bag destruction, it may also simultaneously crush other waste inside the bag. This results in the original, relatively intact plastics, paper, glassware, or other materials being broken into smaller, mixed fragments, which is detrimental to subsequent waste sorting, screening, and resource utilization. Therefore, for processing steps that only require opening the garbage bag and releasing the waste inside, how to ensure that the flexible garbage bag maintains a relatively stable stress state during the breaking process without excessively crushing the material inside, and how to further expand the opening after the blades are applied, while reducing issues such as the bag getting caught on the blades, tangling with the blades, and incomplete breaking, remain technical problems that existing bagged waste breaking equipment needs to further address. Summary of the Invention

[0008] Based on the above description, the present invention provides a waste treatment device that receives and directs bagged waste through an active delivery unit, causing the bagged waste to move along an inclined downward path toward a driven bag-breaking unit. Utilizing the transmission between the active delivery unit and the driven bag-breaking unit, the bag-breaking blade moves upward during the bagged waste delivery process to a position where it can contact the waste bag, thereby piercing and cutting open the slipping waste bag. During the resetting process of the active delivery unit, the bag-breaking blade gradually resets downward, creating further relative displacement between the waste bag pierced or hooked by the blade and the blade itself. This increases the degree of opening of the waste bag and facilitates the detachment of the waste bag from the bag-breaking blade, thereby improving the stability of continuous bag-breaking treatment of bagged waste.

[0009] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A waste treatment device includes a support box with a vertical through opening. An active delivery part and a driven bag-breaking part are arranged sequentially in the vertical direction inside the support box. The active delivery part and the driven bag-breaking part are connected in a driving manner. The active delivery part is used to form a receiving surface with a vertical height difference at the point of contact with the bagged waste. The active delivery plate is used to guide the bagged waste to slide along an inclined downward path to the driven bag-breaking part. The driven bag-breaking part is provided with a bag-breaking blade that is driven by the active delivery part to pass through from the bottom to the top of the receiving surface and to contact the bagged waste in the sliding state. The bag-breaking blade gradually slides downward and resets as the active delivery part resets.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the active delivery unit includes a first rotating shaft for rotatably connecting to the support box. Two rows of support shafts are fixedly connected to the first rotating shaft and arranged in an array along its length direction. The support shafts in the same row are at the same height and the two rows of support shafts have a height difference. The two rows of support shafts are staggered along the length direction of the first rotating shaft.

[0012] Furthermore, the cross-sectional shape of the support shaft is circular, and the end near the bag-breaking blade is set as an arc surface. A reduction servo motor for driving the first rotating shaft to rotate is fixedly connected to the support box.

[0013] Furthermore, the bag-breaking blades are configured as multiple blades facing the gaps between adjacent support shafts and between the support shafts and the walls of the support box. Several bag-breaking blades are arranged in a row and fixedly connected to a second rotating shaft. The bag-breaking blades on the side away from the second rotating shaft are configured as sharp points, and both the sharp points and the two side walls in the width direction of the bag-breaking blades are configured as cutting edges. The second rotating shaft and the first support box are detachably connected.

[0014] Furthermore, the support box is rotatably connected to a drive shaft that is symmetrically arranged and coaxial with the second rotating shaft. The drive shaft located inside the support box has an installation groove for the second rotating shaft to pass through. The drive shaft is provided with an arc-shaped clamping member that is locked by bolts and used to clamp the second rotating shaft.

[0015] Furthermore, in the initial state, the height of the support shaft near the second rotating shaft is higher than that near the first rotating shaft, and the height of the bag-breaking blade near the first rotating shaft is lower than that near the second rotating shaft.

[0016] Furthermore, gears are fixedly connected to the drive shaft protruding from the side of the support box. The driven bag-breaking part also includes a rack that slides vertically and meshes with the gear. The rack includes a toothed section at the bottom and a toothless section at the top. The toothed section and the toothless section are connected. An L-shaped limiting member is fixedly connected to the support box for abutting against the side of the rack away from the teeth. A C-shaped limiting member is fixedly connected to the support box on the top side of the L-shaped limiting member and sleeved on the outside of the toothless section.

[0017] Furthermore, a lap plate is fixedly connected to the top of the rack, a guide square tube is fixedly connected above the lap plate, a sliding square rod protruding from the top of the guide square tube is slidably connected inside the guide square tube, a limiting block for restricting the sliding square rod from sliding vertically upward from the guide square tube is fixedly connected to the bottom of the sliding square rod, an elastic rubber block that abuts against the limiting block and the lap plate is provided inside the guide square tube between the limiting block and the lap plate, a driving lap rod is fixedly connected above the sliding square rod, an active driving rod for applying downward driving force to the driving lap rod and the sliding square rod is fixedly connected to the first rotating shaft, a first connecting plate is fixedly connected to the rack in the toothless section, a second connecting plate directly opposite the first connecting plate is fixedly connected to the side wall of the C-shaped limiting member, a guide rod vertically arranged and slidably connected to the second connecting plate is fixedly connected to the bottom of the first connecting plate, a spring with its two ends in the length direction abutting against the first connecting plate and the second connecting plate respectively is sleeved on the guide rod, and an anti-detachment block is fixedly connected to the bottom of the guide rod below the second connecting plate.

[0018] Furthermore, a guide plate is fixedly connected to the inner wall of the support box above the first and second rotating shafts. A cover plate for covering the gear and rack is detachably connected to the L-shaped limiting member. A first hopper is fixedly connected to the top opening of the support box. A second hopper is fixedly connected to the bottom of the support box. A connecting flange is fixedly connected to the bottom of the second hopper.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0020] 1. This invention does not directly break open bagged garbage in a free state using a fixed or continuously rotating blade. Instead, an active delivery unit first receives the bagged garbage and uses two rows of support shafts with a height difference to change the support state of the garbage bag, causing the bagged garbage to slide towards the driven breaking part. While the garbage bag is sliding directionally, the breaking blade passes from bottom to top above the receiving surface, increasing the probability of effective relative movement between the garbage bag and the breaking blade. This reduces the likelihood of the flexible garbage bag avoiding the blade's force, wrinkling, or moving synchronously with the blade and failing to be effectively cut.

[0021] 2. This invention utilizes an active drive rod, a drive overlap rod, a sliding square rod, an elastic rubber block, a rack, a gear, and a drive shaft on the first rotating shaft to form a mechanical linkage transmission relationship between the active delivery unit and the driven bag-breaking unit. This allows the delivery action of bagged waste to directly trigger the lifting action of the bag-breaking blade. Therefore, there is no need to set up a separate drive source for the bag-breaking blade, which enables a definite motion correlation between the waste delivery process and the bag-breaking process, thus improving the consistency of the timing of their actions.

[0022] 3. Multiple bag-breaking blades are distributed with gaps between adjacent support shafts, allowing the blades to penetrate from inside the support structure that receives the bagged waste. This avoids movement interference between the blades and the support shafts, while allowing them to actively pierce the bag from the bottom or lower side. As the bagged waste slides along an inclined path, the tip of the blades pierces the bag, while the side edges continue to cut the bag, creating a combined effect of "piercing-sliding cutting."

[0023] 4. After the bag-breaking blade completes its upward thrust, the invention does not keep it continuously within the movement area of ​​the bagged waste. Instead, it uses a spring to drive the rack to reset during the resetting of the active delivery unit, and the blade gradually resets downwards via gears, drive shafts, and a second rotating shaft. For garbage bags that have been pierced or partially caught by the blade, the blade's downward movement creates a reverse relative motion with the bag, causing the original piercing point or cut to continue to be stretched, thereby further enlarging the opening in the garbage bag.

[0024] 5. The descent and reset of the bag-breaking blade can also allow the blade to actively withdraw from the area where the garbage bag is located. Compared with the bag-breaking structure where the bag-breaking blade is in a protruding state or continuously rotating, it can reduce the possibility that the already broken garbage bag continues to be attached to the blade. It can also promote the bag to detach by means of the relative action formed by the support shaft, the weight of the garbage itself and the descent of the bag-breaking blade. Therefore, it is beneficial to reduce the probability of flexible plastic bags wrapping around the bag-breaking mechanism.

[0025] 6. An elastic force transmission structure consisting of a sliding square rod, a guide square tube, and an elastic rubber block is set between the active drive rod and the rack. When the bag-breaking blade comes into contact with hard garbage, irregularly shaped objects inside the bag, or when the movement resistance suddenly increases due to garbage accumulation, the elastic rubber block can absorb part of the displacement and impact through its own deformation. This makes the transmission between the active delivery part and the driven bag-breaking part not completely rigid, thereby reducing the possibility of jamming or damage to the transmission components due to instantaneous impact.

[0026] 7. This invention uses a spring to provide a reset force to the rack, so that the driven bag-breaking part can automatically return to its initial position after the active drive rod is disengaged. This allows the working state to be re-established for the delivery of the next bag of garbage and the bag-breaking action, which is beneficial for the continuous and periodic processing of bagged garbage. By detachably installing the second rotating shaft to the drive shaft and locking it with an arc-shaped clamping component, the second rotating shaft and the bag-breaking blade can be completely disassembled for maintenance or replacement when the bag-breaking blade is worn, rolled, or damaged, thereby reducing the maintenance difficulty of the equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 Cross-sectional view of the present invention Figure 1 ;

[0029] Figure 3 Cross-sectional view of the present invention Figure 2 ;

[0030] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 This is a schematic diagram of the structure of the present invention with the cover plate removed. Figure 1 ;

[0032] Figure 6 Cross-sectional view of the present invention Figure 3 ;

[0033] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0034] Figure 8 This is a schematic diagram of the structure of the present invention with the cover plate removed. Figure 2 .

[0035] Reference numerals: 1. Support box; 2. Bag-breaking blade; 3. First rotating shaft; 4. Support shaft; 5. Gear servo motor; 6. Second rotating shaft; 7. Drive shaft component; 8. Mounting groove; 9. Arc-shaped clamping component; 10. Gear; 11. Rack; 12. L-shaped limiting component; 13. C-shaped limiting component; 14. Overlap plate; 15. Guide square tube; 16. Sliding square rod; 17. Limiting block; 18. Elastic rubber block; 19. Drive overlap rod; 20. Active drive rod; 21. First connecting plate; 22. Second connecting plate; 23. Guide rod; 24. Spring; 25. Anti-detachment block; 26. Guide inclined plate; 27. Cover plate; 28. First hopper; 29. ​​Second hopper; 30. Connecting flange component. Detailed Implementation

[0036] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0038] A waste disposal device, reference Figures 1-8 As shown, the device includes a support box 1 with a vertically penetrating opening. The support box 1 is made entirely of steel to ensure sufficient structural strength when subjected to the impact of bagged waste and the working load of the internal moving parts. Inside the support box 1, from top to bottom, are a dynamic delivery unit and a driven bag-breaking unit. The dynamic delivery unit receives bagged waste entering from the top of the support box 1 and can change the support state of the bagged waste during operation, causing it to tilt downwards towards the driven bag-breaking unit. The driven bag-breaking unit and the dynamic delivery unit are connected by a transmission, allowing the dynamic delivery unit to simultaneously drive the driven bag-breaking unit while performing the waste delivery action. The dynamic delivery unit includes a first rotating shaft 3, which extends horizontally and is rotatably connected to the support box 1. The first rotating shaft 3 and the support box 1 are rotatably connected via a shaft hole, and a bearing is provided at the rotatable connection point. One end of the first rotating shaft 3 can be connected to an external... A drive mechanism is connected to drive the first rotating shaft 3 to reciprocate within a specified angle range. Several support shafts 4 are fixedly connected to the first rotating shaft 3. Both the support shafts 4 and the first rotating shaft 3 are made of steel and are fixed together by welding. The support shafts 4 are arranged in an array along the length of the first rotating shaft 3, forming two rows of support structures. Each support shaft 4 in the same row is positioned at the same circumferential location, ensuring a consistent height when the first rotating shaft 3 is in the same rotational state. The two rows of support shafts 4 are staggered circumferentially, creating a predetermined height difference between them. Simultaneously, the two rows of support shafts 4 are also staggered along the length of the first rotating shaft 3, with one row of support shafts corresponding to the positions of two adjacent support shafts 4 in the other row. This creates a relatively continuous support area along the length of the first rotating shaft 3.

[0039] refer to Figures 1-8As shown, the receiving surface for receiving bagged waste is formed by the aforementioned support shafts 4. Due to the height difference between the two rows of support shafts 4, the receiving surface is not completely horizontal, but forms a non-planar receiving structure with height differences, achieving a tightening effect on some loose garbage bags. When bagged waste enters from the top of the support box 1 and falls onto the receiving surface, the bagged waste can be supported by multiple support shafts 4 simultaneously to prevent the bagged waste from falling directly to the driven bag-breaking part. When the first rotating shaft 3 rotates, the two rows of support shafts 4 synchronously change their spatial position with the first rotating shaft 3, causing the receiving surface to change its posture accordingly. This causes the bagged waste to slide towards the driven bag-breaking part along an inclined downward path under its own weight and the pushing action of the support shafts 4. The driven bag-breaking part is located in the active delivery... Below the support box 1, there are multiple bag-breaking blades 2 for cutting open garbage bags. The bag-breaking blades 2 are made of steel. In the initial state, the bag-breaking blades 2 are located below the receiving surface to avoid strong collision between the bagged garbage and the bag-breaking blades 2 when it first enters the support box 1. During the operation of the active delivery unit, the bag-breaking blades 2 are driven to move from bottom to top through the transmission connection between the active delivery unit and the driven bag-breaking unit, so that the bag-breaking blades 2 gradually penetrate above the receiving surface. When the bagged garbage slides towards the driven bag-breaking unit on the receiving surface, the bag-breaking blades 2 that penetrate upward can contact the garbage bag in the sliding state. The bag-breaking blades 2 first pierce into the garbage bag and continue to move along the inclined path with the garbage bag, so that the bag-breaking blades 2 and the garbage bag form a relative displacement, thereby cutting the garbage bag and forming a hole.

[0040] refer to Figures 1-8 As shown, when the active delivery unit completes one delivery action and begins to reset, the driven bag-breaking unit resets synchronously under the transmission action between it and the active delivery unit. The bag-breaking blade 2 gradually moves downward from above the receiving surface. For garbage bags that have been pierced by the bag-breaking blade 2 or partially caught on it, the downward reset direction of the bag-breaking blade 2 is opposite to the upward piercing direction of the previous movement. Therefore, it can create a relative displacement between the bag-breaking blade 2 and the garbage bag again, thereby generating a further pulling effect on the already formed cut, causing the cut to continue to expand outward, thus improving the overall degree of tearing of the garbage bag. At the same time, with... As the bag-breaking blade 2 gradually retracts below the receiving surface, it can reduce the situation where the flexible bag body continues to hang on the bag-breaking blade 2 after the bag is broken. This allows the broken garbage bag and the garbage inside the bag to continue moving downwards under its own gravity. The receiving surface, which can change its posture by rotating with the first rotating shaft 3, is formed by two rows of support shafts 4 with a height difference. This allows the bagged garbage to form a directional sliding motion towards the bag-breaking area while being supported. This delivery action is linked with the lifting and lowering action of the bag-breaking blade 2, so that the bagged garbage goes through the process of receiving, tilting and sliding, blade piercing and cutting, and blade lowering and tearing in sequence.

[0041] refer to Figures 1-8As shown, the support shaft 4 is made entirely of steel with a circular cross-section. The end of the support shaft 4 near the bag-breaking blade 2 is also rounded. By making the support shaft 4 a circular cross-section and providing a rounded transition at the end near the bag-breaking blade 2, the localized snagging and obstruction caused by the support shaft 4 during contact with the garbage bag and during the garbage bag's sliding along the surface of the support shaft 4 can be reduced. This allows the garbage bag to move more smoothly along the receiving area formed by several support shafts 4 towards the direction of the bag-breaking blade 2. Simultaneously, the rounded end also reduces the rigid scraping between the end of the support shaft 4 and the garbage bag. To reduce the probability of wiping and prevent the garbage bag from tearing randomly before reaching the predetermined tearing position, a steel connector is fixedly connected to the outer wall of the support box 1 by welding. The steel connector serves as the mounting base for the geared servo motor 5. The geared servo motor 5 is detachably fixed to the steel connector by bolt locking. The output end of the geared servo motor 5 is connected to the first rotating shaft 3 to drive the first rotating shaft 3 to rotate in a set direction and rotation angle. Using the geared servo motor 5 as the power source for the first rotating shaft 3 can obtain a larger output torque to adapt to bagged garbage. In situations where there are significant differences in the weight and shape of the waste, it is convenient to control the rotation angle, rotation speed, and start / stop position of the first rotating shaft 3. This allows the active delivery unit to drive the support shaft 4 to change its posture according to a predetermined stroke, and to form a stable linkage with the driven bag-breaking unit. The driven bag-breaking unit includes several bag-breaking blades 2, which are arranged in a row along the length of the second rotating shaft 6 and fixedly connected to the second rotating shaft 6. Both the second rotating shaft 6 and the bag-breaking blades 2 are made of steel. The bag-breaking blades 2 are fixedly connected to the second rotating shaft 6 by welding to ensure that the bag-breaking blades 2 are in good working order when subjected to bag pressure. The bag-breaking blades 2 have sufficient connection strength when subjected to the resistance of squeezing, pulling and cutting of garbage. Several bag-breaking blades 2 are respectively positioned to face the gap formed between adjacent support shafts 4 and the gap formed between the outermost support shaft 4 and the support box 1 body wall, so that the bag-breaking blades 2 can pass through the above gaps when rotating with the second rotating shaft 6 without directly interfering with the support shaft 4. Thus, while the support shaft 4 continues to receive and guide the bagged garbage, the bag-breaking blades 2 can pass through from the bottom of the receiving area, so that the bag-breaking blades 2 directly act on the garbage bag that is above the support shaft 4 and slides towards the driven bag-breaking part.

[0042] refer to Figures 1-8As shown, each bag-breaking blade 2 has a pointed tip on the side opposite to the second rotating shaft 6. The pointed tip forms a piercing part for initially penetrating the garbage bag. Simultaneously, the two side walls of the bag-breaking blade 2, positioned opposite each other along its width, are machined with cutting edges. When the bag-breaking blade 2 passes through the gap between adjacent support shafts 4 from bottom to top, the pointed tip of the bag-breaking blade 2 can initially pierce the garbage bag. As the garbage bag continues to slide along the inclined path, or as the bag-breaking blade 2 continues to rotate relative to it, the cutting edges on both sides of the bag-breaking blade 2 can further cut the already formed piercing opening, thereby extending the piercing opening along the bag surface to form a larger opening. Compared to a piercing structure with only a pointed tip, this structure can simultaneously achieve piercing and lateral cutting effects. The second rotating shaft 6 and the support box 1 are detachable. Specifically, the disassembly connection structure includes drive shafts 7 rotatably connected to opposite side walls of the support box 1 via shaft holes. The two drive shafts 7 are symmetrically arranged and coaxial with the second rotating shaft 6. Bearings are installed at the connection points between the drive shafts 7 and the support box 1 to reduce frictional resistance during rotation and improve coaxiality and stability. The drive shafts 7 are made entirely of steel. The end of the drive shaft 7 located inside the support box 1 has a mounting groove 8 for the end of the second rotating shaft 6 to pass through. During installation, both ends of the second rotating shaft 6 are inserted into the corresponding mounting grooves 8 of the drive shaft 7. The drive shaft 7 also has an arc-shaped clamping element 9. The entire assembly is made of steel and is bolted to the drive shaft 7. The arc-shaped clamping member 9 and the mounting groove 8 together form a limiting space for clamping the second rotating shaft 6, thereby radially clamping the second rotating shaft 6. The locking bolt passes through the arc-shaped clamping member 9 and the second rotating shaft 6, and is threadedly connected to the drive shaft 7. After the bolt is tightened, not only can the arc-shaped clamping member 9 exert a radial clamping effect on the second rotating shaft 6, but the through fit between the bolt and the second rotating shaft 6 can also restrict the circumferential rotation and axial movement of the second rotating shaft 6 relative to the drive shaft 7, so that the drive shaft 7 can reliably drive the second rotating shaft 6 to rotate synchronously. When it is necessary to repair or replace the bag-breaking blade 2, it can be done by removing the bolt and the arc-shaped clamping member 9. Tightening member 9 causes the second rotating shaft 6 to retract from the mounting slot 8 of the drive shaft 7, thereby achieving the overall disassembly of the second rotating shaft 6 and multiple bag-breaking blades 2. In the initial state, the height of the support shaft 4 near the second rotating shaft 6 is higher than its height near the first rotating shaft 3, thus creating an initial tilted posture where the support shaft 4 gradually rises from the side near the first rotating shaft 3 towards the side near the second rotating shaft 6. Simultaneously, the height of the bag-breaking blades 2 near the first rotating shaft 3 is lower than their height near the second rotating shaft 6, ensuring that the bag-breaking blades 2 are initially arranged at an angle compatible with the support shaft 4, and that the tip and main cutting edge area of ​​the bag-breaking blades 2 are below the receiving surface formed by the support shaft 4. Through this initial posture setting...When bagged waste enters the equipment from above the support box 1, it preferentially falls onto the receiving area formed by multiple support shafts 4. Subsequently, when the reduction servo motor 5 drives the first rotating shaft 3 to rotate and changes the spatial position of the support shafts 4, the support shafts 4 gradually change their support direction for the bagged waste, causing the bagged waste to slide towards the side where the second rotating shaft 6 is located. At the same time, the driven bag-breaking part, driven by the active delivery part, drives the second rotating shaft 6 to rotate, causing the bag-breaking blade 2 to gradually extend upward through the gap between the support shafts 4. When the bagged waste slides along the receiving area formed by the support shafts 4 to the corresponding position, the upward-extending bag-breaking blade 2 can pierce into the garbage bag from below or diagonally below the bag body, and utilizes the sliding motion of the bagged waste itself to create a relative displacement between the bag-breaking blade 2, thereby completing the piercing and cutting of the garbage bag.

[0043] refer to Figures 1-8As shown, gears 10 are fixedly connected to the two drive shafts 7 protruding from the side wall of the support box 1 by welding. The gears 10 are made of steel to ensure sufficient structural strength during repeated meshing and transmission and to withstand the reaction force generated during the bag-breaking process. The gears 10 and the corresponding drive shafts 7 are coaxially arranged so that when the gears 10 rotate, they can synchronously drive the second rotating shaft 6 to rotate through the drive shafts 7, thereby changing the spatial posture of the several bag-breaking blades 2 fixed on the second rotating shaft 6. The driven bag-breaking part also includes a rack 11 that meshes with the gears 10. The rack 11 is made of steel and is slidably arranged on the outside of the support box 1 in the vertical direction. The rack 11 includes the lower part of the rack. The rack 11 has a toothed section and a toothless section above it, which are integrally connected. The toothed section has teeth on the side near the gear 10 that are adapted to the gear 10. This allows the rack 11 to convert its linear motion into the rotational motion of the gear 10 through the meshing between the toothed section and the gear 10 when it moves vertically. This rotational motion is then driven by the drive shaft 7 to simultaneously rotate the second rotating shaft 6 and the bag-breaking blade 2. The toothless section mainly guides and limits the vertical movement of the rack 11 and provides a mounting position for the rack 11 to connect with the subsequent drive and reset structures. To limit the rack 11 from deviating from the direction of the gear 10 during movement, an L-shaped limiter is fixedly connected to the support box 1 on the side of the rack 11 away from the teeth. The L-shaped limiting member 12 is made entirely of steel and is fixedly connected to the support box 1 by welding. The L-shaped limiting member 12 has a limiting surface that abuts against or maintains a small clearance fit with the side of the rack 11 away from the teeth, preventing the rack 11 from significantly shifting away from the gear 10 when subjected to the meshing reaction force of the gear 10. This allows the toothed section of the rack 11 to maintain a relatively stable meshing state with the gear 10. A C-shaped limiting member 13 is fixedly connected to the support box 1 above the L-shaped limiting member 12. The C-shaped limiting member 13 is also made of steel and fixed to the support box 1 by welding. The C-shaped limiting member 13 is fitted onto the outside of the toothless section of the rack 11, and its interior forms a space for the toothless section to move vertically... The rack 11 passes through and slides within a limited space. The C-shaped limiting member 13 provides lateral constraint on the toothless section, further restricting the rack 11 from swinging horizontally or tilting during vertical reciprocating movement. The L-shaped limiting member 12 and the C-shaped limiting member 13 form a double-guided structure distributed vertically along the length of the rack 11. The L-shaped limiting member 12 primarily supports and limits the rack 11 near the meshing area of ​​the gear 10, while the C-shaped limiting member 13 guides the upper toothless section of the rack 11. This allows the rack 11 to slide stably along a basically vertical trajectory and maintains reliable meshing between the toothed section of the rack 11 and the gear 10. During operation, when the rack 11 is subjected to a vertical force applied by the subsequent driving structure and moves downwards...The toothed segment meshes with the gear 10, causing the gear 10 to rotate in a predetermined direction. The gear 10 further drives the second rotating shaft 6 to rotate via the drive shaft 7, causing multiple bag-breaking blades 2 to gradually swing upwards from their initial positions toward the receiving surface formed by the support shaft 4, and to pass upwards through the gaps between adjacent support shafts 4. When the rack 11 subsequently resets upwards in the opposite direction, the toothed segment drives the gear 10 to rotate in the opposite direction, and the second rotating shaft 6 and the bag-breaking blades 2 swing in the opposite direction, causing the bag-breaking blades 2 to gradually retract below the receiving surface, thus realizing the reciprocating bag-breaking action of the driven bag-breaking section.

[0044] refer to Figures 1-8 As shown, a lap plate 14 is fixedly connected to the top of the rack 11 by welding. The lap plate 14 is made entirely of steel. A guide square tube 15, also made of steel, is fixedly connected to the top of the lap plate 14 by welding. The guide square tube 15 has a cavity extending along its length, with a square cross-sectional shape. Near the top of the cavity, a constriction structure is formed, making the cross-sectional area near the top opening smaller than the cross-sectional area of ​​the cavity below. A sliding square rod 16, extending vertically and passing through the top opening, is slidably connected inside the guide square tube 15. The cross-sectional shape of the sliding square rod 16 matches the shape of the top opening of the guide square tube 15, allowing the sliding square rod 16 to move along the length of the guide square tube 15. The sliding rod 16 slides smoothly in a stable direction, while the fit between the square cross sections restricts the circumferential rotation of the sliding rod 16 relative to the guide tube 15. The bottom of the sliding rod 16 is fixedly connected to the limiting block 17 by welding. Both the sliding rod 16 and the limiting block 17 are made of steel. The cross-sectional shape and cross-sectional area of ​​the limiting block 17 are adapted to the cavity of the guide tube 15 located below the constriction, so that the limiting block 17 can move vertically in this section of the cavity. Since the cross-sectional area at the top opening of the guide tube 15 is smaller than the cross-sectional area of ​​the limiting block 17, when the sliding rod 16 moves upward to the predetermined position, the limiting block 17 can form an axial limit with the constriction position at the top of the guide tube 15, thereby preventing the sliding rod 16 from detaching from the guide tube 15 vertically upward.

[0045] refer to Figures 1-8As shown, an elastic rubber block 18 is installed inside the guide square tube 15 located between the limiting block 17 and the overlapping plate 14. The elastic rubber block 18 is vertically sandwiched between the limiting block 17 and the overlapping plate 14, and abuts against the limiting block 17 and the overlapping plate 14 respectively. The elastic rubber block 18 is made of EPDM rubber material. Utilizing the good elastic recovery performance, fatigue resistance and buffering performance of EPDM rubber, the elastic rubber block 18 can maintain a relatively stable elastic deformation ability during repeated compression. When the sliding square rod 16 is subjected to a downward force, the sliding square rod 16 drives the limiting block 17 to move downward along the guide square tube 15, and further compresses the limiting block 17 located between the limiting block 17 and the overlapping plate 14. The elastic rubber block 18 between the limiting block 17 and the overlapping plate 14 transmits the downward force to the overlapping plate 14 after being compressed, and then from the overlapping plate 14 to the rack 11, causing the rack 11 to slide vertically downward. Since the driving force is indirectly transmitted through the elastic rubber block 18, when the bag-breaking blade 2 is blocked by hard materials inside the bagged garbage, the moving resistance of the rack 11 suddenly increases, or there is an instantaneous impact between the various transmission components, the elastic rubber block 18 can absorb part of the displacement and impact energy through its own compression deformation, thereby reducing the possibility of jamming or impact damage caused by the completely rigid force transmission between the active drive structure and the rack 11.

[0046] refer to Figures 1-8As shown, a driving connecting rod 19 is fixedly connected to the top of the sliding square rod 16. The cross-sectional shape of the driving connecting rod 19 is circular, and it is made entirely of steel. The driving connecting rod 19 is fixedly connected to the top of the sliding square rod 16 by welding. The driving connecting rod 19 is used to receive the driving force transmitted from one side of the first rotating shaft 3, so as to convert the rotational movement of the first rotating shaft 3 into the vertical movement of the sliding square rod 16 and the rack 11. An active driving rod 20 is fixedly connected to the first rotating shaft 3 by welding. The rod 20 is made entirely of steel and rotates synchronously with the first rotating shaft 3. The active drive rod 20, after rotating to a predetermined angle with the first rotating shaft 3, contacts the drive connecting rod 19 and / or the sliding square rod 16, applying a downward driving force. In the initial state of the equipment, before the support shaft 4 causes the bagged waste to tilt or slide downwards, a buffer transition gap is reserved between the active drive rod 20, the drive connecting rod 19, and the sliding square rod 16. By setting this buffer transition gap, the first rotating shaft 3... After initial rotation, the active drive rod 20 does not immediately drive the rack 11 downward. Instead, it allows the first rotating shaft 3 to first rotate multiple support shafts 4 by a certain angle, causing the bearing state formed by the multiple support shafts 4 to change preferentially. This causes the bagged waste to gradually tilt and slide towards the driven bag-breaking section. When the first rotating shaft 3 continues to rotate and the active drive rod 20 crosses the aforementioned buffer transition gap, the active drive rod 20 then contacts the drive overlap rod 19 and / or the sliding square rod 16 and applies a downward force, thereby driving the sliding square rod 16. The rod 16, elastic rubber block 18, overlapping plate 14 and rack 11 move in sequence. Through the above structure, the active delivery part and the driven bag breaking part form a sequential linkage relationship. That is, the support shaft 4 can first adjust the posture and movement direction of the bagged garbage, and then the bag breaking blade 2 is driven by the rack 11 and gear 10 to pass out from the bottom of the receiving surface. This reduces the situation where the bag breaking blade 2 extends too early and obstructs the entry and sliding of the bagged garbage, and improves the stability of the bag breaking blade 2 in contact with the garbage bag in the sliding state.

[0047] refer to Figures 1-8As shown, a first connecting plate 21 is fixedly connected to the toothless section of the rack 11 by welding. The first connecting plate 21 is made entirely of steel. A second connecting plate 22, which is vertically opposite to the first connecting plate 21, is fixedly connected to the side wall of the C-shaped limiting member 13 by welding. The second connecting plate 22 is also made of steel and is fixedly connected to the C-shaped limiting member 13 by welding. A guide rod 23 extending vertically is fixedly connected to the bottom of the first connecting plate 21 by welding. The guide rod 23 is made of steel. The second connecting plate 22 has a through-hole adapted to the guide rod 23. The guide rod 23 passes through the through-hole and can slide vertically relative to the second connecting plate 22. With the sliding fit between the guide rod 23 and the through-hole, the up-and-down movement of the first connecting plate 21 and the rack 11 can be further guided to reduce the deflection of the rack 11 during reciprocating motion. A spring 24 is sleeved on the guide rod 23. The spring 24 is made of spring steel. The upper end of the spring 24 along its length is connected to the first connecting plate 21. Plate 21 abuts against each other, and the lower end of spring 24 along its length abuts against the second connecting plate 22. When the active drive rod 20 pushes the rack 11 downward through the drive connecting rod 19, sliding square rod 16, elastic rubber block 18, and connecting plate 14, the first connecting plate 21 moves downward synchronously with the rack 11, reducing the distance between the first connecting plate 21 and the second connecting plate 22, and compressing the spring 24 sleeved on the guide rod 23, thereby storing elastic potential energy in the spring 24. The guide rod 23 passes through the lower end of the second connecting plate 22 and is fixed. The fixed connection is equipped with an anti-detachment block 25, which is made of steel and is fixedly connected to the guide rod 23 by welding. The cross-sectional area of ​​the anti-detachment block 25 is larger than the cross-sectional area of ​​the guide through hole on the second connecting plate 22. Therefore, the anti-detachment block 25 can form a limiting fit with the second connecting plate 22 when the guide rod 23 moves upward to the limit position, so as to prevent the guide rod 23 from completely detaching from the second connecting plate 22 vertically upward, thereby ensuring that the first connecting plate 21, rack 11 and guide rod 23 are always in a stable assembly state.

[0048] refer to Figures 1-8As shown, when the first rotating shaft 3 completes one active delivery action and begins to reverse reset, the active drive rod 20 gradually moves away from the drive connecting rod 19 along with the first rotating shaft 3, thereby relieving the downward pressure on the sliding square rod 16. At this time, the spring 24, which is in a compressed state, releases its elastic potential energy and pushes the first connecting plate 21 and the rack 11 to reset vertically upward. During the upward movement of the rack 11, its toothed segments drive the corresponding gear 10 to rotate in the opposite direction, which in turn drives the second rotating shaft 6 and several bag-breaking blades 2 to swing in the opposite direction through the drive shaft 7, so that the bag-breaking blades 2 that previously penetrated above the receiving surface gradually retract downward to return to their original positions. Since the bag-breaking blades 2 may have pierced or partially penetrated the garbage bag before, when the bag-breaking blades 2 reset downward, they can form a reverse relative movement with the garbage bag that is still sliding, falling, or restricted by the support shaft 4. The movement of the bag-breaking blade 2 further pulls on the already formed puncture and cut, thereby expanding the tearing range of the garbage bag. At the same time, as the bag-breaking blade 2 gradually retracts below the receiving surface, it also helps the bag hanging on the bag-breaking blade 2 to detach from the blade, reducing the situation where the garbage bag continues to be wrapped around the bag-breaking blade 2. Thus, the active drive rod 20, drive overlap rod 19, sliding square rod 16, elastic rubber block 18, overlap plate 14, rack 11, gear 10, spring 24, and guide rod 23 together constitute the linkage drive and elastic reset structure between the active delivery part and the driven bag-breaking part. This allows the first rotating shaft 3 to sequentially realize the bag garbage posture adjustment, delayed lifting of the bag-breaking blade 2, puncture and cut by the bag-breaking blade 2, elastic buffering of the rack 11, and automatic descent and reset of the bag-breaking blade 2 during one rotation.

[0049] refer to Figures 1-8As shown, a guide ramp 26 is fixedly connected to the inner wall of the support box 1. The guide ramp 26 is located above the first rotating shaft 3 and the second rotating shaft 6. A gap greater than zero is reserved between the first rotating shaft 3 and the second rotating shaft 6 and the adjacent inner wall of the support box 1 to ensure sufficient installation and rotation space for the first rotating shaft 3, the second rotating shaft 6, and related moving components connected to them. The guide ramp 26 is made entirely of steel and is fixedly connected to the box wall of the support box 1 by welding, thus ensuring sufficient structural strength and connection stability when subjected to the impact of falling bagged waste. The guide ramp 26 is inclined towards the effective processing area inside the support box 1 and at least partially blocks the gap formed between the first rotating shaft 3, the second rotating shaft 6, and the inner wall of the support box 1. When bagged waste enters from above the support box 1, the guide ramp 26 can guide the falling direction of the bagged waste, causing it to preferentially move towards the receiving area formed by several support shafts 4, reducing the impact of bagged waste. The possibility of garbage or the edge of the bag directly entering the gap between the first rotating shaft 3, the second rotating shaft 6 and the inner wall of the support box 1 is reduced. On the one hand, this reduces the probability of the flexible garbage bag being caught or entangled in the end of the rotating shaft or between the shaft and the box wall. On the other hand, it also allows the bagged garbage entering the support box 1 to enter the effective range of the active delivery unit in a more concentrated manner, thereby improving the stability of the subsequent delivery and bag breaking process. A cover plate 27 is detachably connected to the L-shaped limiting member 12. The cover plate 27 is used to cover and shield the gear 10 and rack 11 located on the outside of the support box 1. The cover plate 27 is made of steel and is fixedly connected to the L-shaped limiting member 12 by bolt locking. After the cover plate 27 is installed, it can form a protective space on the outside of the gear 10 and rack 11 to reduce the entry of garbage debris, plastic film, dust or other debris into the meshing area of ​​the gear 10 and rack 11, thereby reducing the possibility of debris getting caught in the meshing position and affecting the normal transmission of the gear 10 and rack 11.Meanwhile, the cover plate 27 can also form an external isolation for the gear 10 and rack 11 in motion, reducing the direct contact between external objects and the gear 10 and rack 11 during equipment maintenance or operation. When it is necessary to inspect, clean, or lubricate the gear 10, rack 11 and its surrounding structure, the bolts used to lock the cover plate 27 can be removed, separating the cover plate 27 from the L-shaped limiting member 12, thereby exposing the transmission area of ​​the gear 10 and rack 11 for subsequent maintenance operations. A first hopper 28 is fixedly connected to the top opening of the support box 1. The first hopper 28 is made entirely of steel and is fixedly connected to the box wall of the support box 1 by welding. The upper part of the first hopper 28 A relatively large feed inlet is formed and gradually narrows towards the support box 1 to collect and guide the bagged waste fed into the equipment. After the bagged waste enters through the first hopper 28, it moves downward under its own gravity and further enters the active delivery section inside the support box 1. By setting the first hopper 28, it is easier for the bagged waste transported by the conveyor belt, grab bucket or other upstream feeding mechanism to enter the support box 1. At the same time, it can reduce the situation of bagged waste falling to the outside of the equipment during the process of entering the support box 1. The first hopper 28 is fixed to the support box 1 by welding, which can also improve the overall rigidity of the top feeding structure and make it adaptable to continuous feeding conditions.

[0050] refer to Figures 1-8As shown, a second hopper 29 is fixedly connected to the bottom of the support box 1 by bolts. The second hopper 29 is made entirely of steel and is connected to the bottom opening of the support box 1. Garbage bags processed by the active delivery unit and the driven bag-breaking unit, as well as the garbage released from the bags, can move towards the bottom of the support box 1 under their own gravity and enter the second hopper 29, where they are further collected and guided downwards. The second hopper 29 is detachably connected to the support box 1 by bolts. This ensures the stability of the connection during normal operation and allows the second hopper 29 to be easily removed from the bottom of the support box 1 when garbage accumulates inside or when maintenance of the internal structure of the support box 1 is required, providing more maintenance space. A connecting flange 30 is fixedly connected to the bottom of the second hopper 29 by bolts. The connecting flange 30 is used to connect this waste treatment equipment to external equipment. In practical use, the connecting flange... The discharge end of the second hopper 29 is connected to the inlet end of downstream conveying equipment, screening equipment, sorting equipment, or other waste treatment equipment, so that the waste after bag breaking can directly enter the subsequent processing steps. The connecting flange 30 is used as the external structure at the bottom of the equipment. According to the installation requirements of different waste treatment production lines, the connecting flange 30 can be replaced with one that matches the interface size of the external equipment to realize the connection between the waste treatment equipment and downstream equipment of different specifications, thereby improving the overall installation adaptability of the structure. By setting the guide plate 26 inside the support box 1, the falling path of bagged waste can be constrained and the gap between the rotating shaft and the box wall can be blocked. By setting the detachable cover plate 27, the gear 10 rack 11 transmission mechanism can be shielded and protected. At the same time, in conjunction with the first hopper 28 at the top, the second hopper 29 at the bottom, and the connecting flange 30, the bagged waste can complete the continuous processing process of centralized feeding, guided delivery, bag breaking, collection and discharge, and conveying to downstream equipment in sequence.

[0051] Working principle: During use, bagged garbage enters the support box 1 through the first hopper 28 and falls onto the receiving surface formed by two rows of support shafts 4 with a height difference. This provides a certain degree of support and tension to the loose garbage bag. The reduction servo motor 5 drives the first rotating shaft 3 to rotate, and the support shaft 4 changes its posture accordingly, guiding the bagged garbage along an inclined downward path toward the bag-breaking blade 2. After the first rotating shaft 3 rotates at a certain angle, the active drive rod 20 crosses the reserved buffer gap and presses down to drive the overlapping rod 19, causing the sliding square rod 16 to move downward and compress the elastic rubber block 18. The elastic rubber block 18 drives the rack 11 to move downward through the overlapping plate 14. The rack 11 drives the gear 10 to rotate, and in turn, through the drive shaft 7 and the second rotating shaft 6, drives multiple bag-breaking blades 2 to pass upward through the gap between the support shafts 4. The tip of the bag-breaking blade 2 first pierces into the bag in the sliding state. The garbage bag is then further cut open by the relative movement between the bagged garbage and the bag-breaking blade 2. As the rack 11 moves downward, the first connecting plate 21 synchronously compresses the spring 24. When the first rotating shaft 3 reverses and resets, the active drive rod 20 releases the downward pressure on the drive connecting rod 19. The spring 24 pushes the rack 11 upward and resets, and drives the bag-breaking blade 2 downward through the gear 10, drive shaft 7 and second rotating shaft 6. For garbage bags that have been pierced or hooked by the bag-breaking blade 2, the downward reset of the bag-breaking blade 2 can further pull on the original opening, making the opening larger and promoting the garbage bag to detach from the bag-breaking blade 2. After the bag is broken, the garbage falls into the second hopper 29 under its own gravity and enters the subsequent processing equipment through the connecting flange 30. This completes the process of delivering, piercing, cutting, tearing and discharging bagged garbage.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste disposal device, comprising a support box (1) with a vertical through opening, characterized in that, The support box (1) is provided with an active delivery part and a driven bag breaking part in sequence along the vertical direction. The active delivery part and the driven bag breaking part are connected in a transmission. The active delivery part is used to form a receiving surface with a height difference along the vertical direction at the point of contact with the bagged waste. The active delivery plate is used to guide the bagged waste to slide along the inclined downward path to the driven bag breaking part. The driven bag breaking part is provided with a bag breaking blade (2) that is driven by the active delivery part to pass through from the bottom to the top of the receiving surface and to contact the bagged waste in the sliding state. The bag breaking blade (2) gradually slides down and resets as the active delivery part resets.

2. The waste treatment equipment according to claim 1, characterized in that, The active delivery unit includes a first rotating shaft (3) for rotatably connecting with the support box (1). Two rows of support shafts (4) are fixedly connected to the first rotating shaft (3) and arranged in an array along its length direction. The support shafts (4) in the same row are at the same height and the two rows of support shafts (4) have a height difference. The two rows of support shafts (4) are staggered along the length direction of the first rotating shaft (3).

3. The waste treatment equipment according to claim 2, characterized in that, The cross-sectional shape of the support shaft (4) is circular and the end near the bag-breaking blade (2) is set as an arc surface. A deceleration servo motor (5) for driving the first rotating shaft (3) to rotate is fixedly connected to the support box (1).

4. A waste treatment device according to claim 2, characterized in that, The bag-breaking blades (2) are configured as multiple blades and are positioned to enclose the gaps between adjacent support shafts (4) and between the support shafts (4) and the support box (1). Several bag-breaking blades (2) are arranged in a row and fixedly connected to a second rotating shaft (6). The bag-breaking blades (2) on the side away from the second rotating shaft (6) are configured as sharp points, and the sharp points and the two side walls in the width direction of the bag-breaking blades (2) are configured as cutting edges. The second rotating shaft (6) is detachably connected to the first support box (1).

5. A waste treatment device according to claim 4, characterized in that, The support box (1) is rotatably connected to a drive shaft (7) that is symmetrically arranged and coaxial with the second rotating shaft (6). The drive shaft (7) located inside the support box (1) has an installation groove (8) for the second rotating shaft (6) to pass through. The drive shaft has an arc-shaped clamping member (9) that is locked by bolts and used to clamp the second rotating shaft (6).

6. A waste treatment device according to claim 5, characterized in that, In the initial state, the height of the support shaft (4) near the second rotating shaft (6) is higher than that of the side near the first rotating shaft (3), and the height of the bag-breaking blade (2) near the first rotating shaft (3) is lower than that of the side near the second rotating shaft (6).

7. A waste treatment device according to claim 6, characterized in that, Gears (10) are fixedly connected to the drive shaft (7) protruding from the side of the support box (1). The driven bag-breaking part also includes a rack (11) that slides vertically and meshes with the gear (10). The rack (11) includes a toothed section at the bottom and a toothless section at the top. The toothed section and the toothless section are connected. An L-shaped limiting member (12) is fixedly connected to the support box (1) for abutting against the side of the rack (11) away from the teeth. A C-shaped limiting member (13) sleeved on the outside of the toothless section is fixedly connected to the support box (1) on the top side of the L-shaped limiting member (12).

8. A waste treatment device according to claim 7, characterized in that, A lap plate (14) is fixedly connected to the top of the rack (11), and a guide square tube (15) is fixedly connected above the lap plate (14). A sliding square rod (16) protruding from the top of the guide square tube (15) is slidably connected inside the guide square tube (15). A limiting block (17) for limiting its vertical upward sliding from the guide square tube (15) is fixedly connected to the bottom of the sliding square rod (16). An elastic rubber block (18) abutting against the limiting block (17) and the lap plate (14) is provided inside the guide square tube (15) between the limiting block (17) and the lap plate (14). A driving lap rod (19) is fixedly connected above the sliding square rod (16). A device for driving the lap rod is fixedly connected to the first rotating shaft (3). An active drive rod (20) applies downward driving force to the rod (19) and the sliding square rod (16). A first connecting plate (21) is fixedly connected to the rack (11) in the toothless section. A second connecting plate (22) is fixedly connected to the side wall of the C-shaped limiting member (13) and faces the first connecting plate (21). A guide rod (23) is fixedly connected to the bottom of the first connecting plate (21) and slides with the second connecting plate (22). A spring (24) is sleeved on the guide rod (23) with its two ends in the length direction abutting against the first connecting plate (21) and the second connecting plate (22) respectively. An anti-detachment block (25) is fixedly connected to the bottom of the guide rod (23) below the second connecting plate (22).

9. A waste treatment device according to any one of claims 7, characterized in that, A guide plate (26) is fixedly connected to the inner wall of the support box (1) above the first rotating shaft (3) and the second rotating shaft (6). A cover plate (27) for covering the gear (10) and the rack (11) is detachably connected to the L-shaped limiting member (12). A first hopper (28) is fixedly connected to the top opening of the support box (1). A second hopper (29) is fixedly connected to the bottom of the support box (1). A connecting flange (30) is fixedly connected to the bottom of the second hopper (29).

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