Kitchen waste crushing blade protection structure

CN224926191UActive Publication Date: 2026-11-03ZAOZHUANG QIANZHOU ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522644866.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-13
Publication Date
2026-11-03
Estimated Expiration
2035-12-13

AI Technical Summary

Technical Problem

Existing food waste shredder blades lack protective structures, which can cause hard objects to get stuck in the blades, leading to blade damage or motor overload.

Method used

An electromagnet is installed between the rotating plates of the shredder blades. When a hard object gets stuck, the overload torque causes the rotating plates to separate, allowing the motor to idle and avoid overload damage. An anti-reset mechanism is used to prevent accidental reset. The pull ring can be pulled to unlock the device during cleaning.

Benefits of technology

It effectively prevents the blades from being damaged by hard objects, reduces the risk of motor overload, ensures safe and stable operation of the equipment, and simplifies the cleaning process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses kitchen garbage smashes the blade protection structure relates to the blade protection technical field, including the smashing frame, the inner fixed connection of smashing frame has the baffle, the upper surface of baffle is established with the round hole, the inside rotation of round hole is connected with the rotating shaft, the upper end fixed connection of rotating shaft has the smashing blade, the inside of smashing frame is provided with first rotating plate, the upper surface fixed connection of first rotating plate has a plurality of second rotating plates, the inside of smashing frame is provided with drive mechanism. The utility model discloses through setting up between first rotating plate and second rotating plate's electromagnet, when hard thing jams the smashing blade, and overload torque makes first, second rotating plate automatic separation, and motor idling avoids overload damage, and the blade is separated from the contact with hard thing, to reduce the risk of collapse deformation.
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Description

Technical Field

[0001] This utility model relates to the field of blade protection technology, specifically to a protective structure for kitchen waste shredder blades. Background Technology

[0002] Traditional Chinese kitchen waste is generally composed of easily perishable and easily broken water-containing fibers such as plant-based and fruit-based materials. Therefore, installing a garbage shredder can directly crush and discharge kitchen waste, reducing pollution caused by garbage storage. A garbage shredder is a machine consisting of a crushing roller system, a bearing housing, a hopper, a power system, and an electronic control system, mainly used for crushing kitchen waste.

[0003] Among them, a blade for processing kitchen waste shredder with announcement number CN222606588U solves the problems mentioned in the background art. It includes a shell, a connector is fixedly connected to the top of the shell, a drain pipe communicating with the inner cavity is connected to the side of the shell, a connecting plate is connected between the shell and the connector, a fixing block is fixedly connected to the bottom of the connecting plate, and a drive motor is fixedly installed in the inner cavity of the fixing block.

[0004] However, existing food waste shredder blades do not have a protective structure. When some hard bone fragments or metal shavings fall into the shredder, the blades will get stuck, which will damage the blades and may even cause the motor to overload and be damaged. Utility Model Content

[0005] In view of the problems existing in the current kitchen waste shredder blades, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a protective structure for the blades of a kitchen waste shredder, which solves the problem that existing kitchen waste shredder blades do not have a protective structure. When some hard bone fragments or metal shavings fall into the inside of the shredder, the blades will be stuck, which will cause damage to the blades and may even cause motor overload damage.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A protective structure for a kitchen waste shredder blade includes a shredder frame. A partition is fixedly connected inside the shredder frame. A circular hole is formed on the upper surface of the partition. A rotating shaft is rotatably connected inside the circular hole. A shredder blade is fixedly connected to the upper end of the rotating shaft. A first rotating plate is arranged inside the shredder frame. Multiple second rotating plates are fixedly connected to the upper surface of the first rotating plate. A driving mechanism is arranged inside the shredder frame. The rotating shaft rotates through the rotating shaft. Electromagnets are fixedly connected to the sides of the first and second rotating plates that are close to each other. Corresponding electromagnets attract each other. A fixing mechanism is symmetrically arranged on the side wall of the shredder frame. The second rotating plates are matched with the fixing mechanisms.

[0008] Preferably, the driving mechanism includes a motor and a insert plate. The motor is fixedly connected to the lower surface of the crushing frame. The output end of the motor passes through the lower surface of the crushing frame and is fixedly connected to the first rotating plate. One end of the rotating shaft is provided with a square groove. The insert plate is inserted into the inside of the square groove and is fixedly connected to the upper surface of the second rotating plate.

[0009] Preferably, the fixing mechanism includes two fixing frames, two inserts, two connecting rods, two springs, and two pull rings. The two fixing frames are symmetrically fixed to both sides of the crushing frame. The sidewalls of the crushing frame are symmetrically provided with square holes. The two inserts are slidably disposed inside the corresponding square holes. Each connecting rod is fixedly connected to one end of the corresponding insert. One end of each connecting rod passes through one side of the corresponding fixing frame and is fixedly connected to the corresponding pull ring. The two springs are slidably sleeved on the rod walls of the corresponding connecting rods.

[0010] Preferably, a first triangular block is symmetrically fixedly connected to the upper surface of the first rotating plate, and a second triangular block is fixedly connected to the lower surface of each second rotating plate, with the inclined surface of each first triangular block respectively fitting with the inclined surface of the corresponding second triangular block.

[0011] Preferably, the outer surface of the second rotating plate is provided with an annular slot.

[0012] Preferably, both of the inserts are trapezoidal, and the bevels at one end of both inserts match the slots.

[0013] Preferably, a slag discharge hole is provided on one side of the crushing frame, a sealing mesh is fixedly connected inside the slag discharge hole, and a slag discharge pipe is fixedly connected to the side of the crushing frame near the slag discharge hole.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. In this utility model, an electromagnet is set between the first rotating plate and the second rotating plate. When a hard object jams the crushing blade, the overload torque causes the first and second rotating plates to automatically separate, and the motor runs idle to avoid overload damage; the blade is separated from the hard object to reduce the risk of blade breakage and deformation.

[0015] 2. In this utility model, through the fixing mechanism set on both sides of the crushing frame, when the rotating plate is separated, the spring pushes the plug to automatically insert into the annular slot of the second rotating plate, preventing the rotating plate from accidentally resetting during equipment operation and causing danger; when cleaning hard objects, it is only necessary to pull the pull ring to unlock. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 For the present utility model Figure 1 A three-dimensional structural diagram of the first rotating plate in the middle; Figure 3 For the present utility model Figure 1 A three-dimensional structural diagram of the second rotating plate in the middle; Figure 4 For the present utility model Figure 1 A three-dimensional structural diagram of the rotating shaft.

[0018] Explanation of reference numerals in the attached figures: 1. Crushing frame, 2. Partition plate, 3. Rotating shaft, 4. Crushing blade, 5. First rotating plate, 6. Second rotating plate, 7. Electromagnet, 8. Motor, 9. Insert plate, 10. Fixing frame, 11. Insert block, 12. Connecting rod, 13. Spring, 14. Pull ring, 15. First triangular block, 16. Second triangular block, 17. Sealing mesh, 18. Slag discharge pipe. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] This utility model embodiment discloses a protective structure for the blade of a kitchen waste shredder.

[0021] This utility model provides, for example Figure 1-3The kitchen waste shredder blade protection structure shown includes a shredder frame 1, a partition 2 fixedly connected inside the shredder frame 1, a circular hole on the upper surface of the partition 2, a rotating shaft 3 rotatably connected inside the circular hole, a shredder blade 4 fixedly connected to the upper end of the rotating shaft 3, a first rotating plate 5 inside the shredder frame 1, a plurality of second rotating plates 6 fixedly connected to the upper surface of the first rotating plate 5, a drive mechanism inside the shredder frame 1, the rotating shaft 3 rotates through the rotating shaft 3, an electromagnet 7 is fixedly connected to the side of the first rotating plate 5 and the second rotating plate 6 that are close to each other, and the corresponding two electromagnets 7 attract each other, a fixing mechanism is symmetrically arranged on the side wall of the shredder frame 1, and the second rotating plates 6 are matched with the fixing mechanism.

[0022] When the electromagnet 7 is energized, it attracts the first rotating plate 5 and the second rotating plate 6, causing the inclined surfaces of the first triangular block 15 and the second triangular block 16 to fit together, thus enhancing the connection stability.

[0023] like Figure 1-4 As shown, the driving mechanism includes a motor 8 and a plate 9. The motor 8 is fixedly connected to the lower surface of the crushing frame 1. The output end of the motor 8 passes through the lower surface of the crushing frame 1 and is fixedly connected to the first rotating plate 5. A square groove is opened at one end of the rotating shaft 3. The plate 9 is inserted into the inside of the square groove. The plate 9 is fixedly connected to the upper surface of the second rotating plate 6. A first triangular block 15 is symmetrically fixedly connected to the upper surface of the first rotating plate 5. A second triangular block 16 is fixedly connected to the lower surface of each second rotating plate 6. The inclined surface of each first triangular block 15 is respectively attached to the inclined surface of the corresponding second triangular block 16. A slag discharge hole is opened on one side of the crushing frame 1. A sealing mesh 17 is fixedly connected inside the slag discharge hole. A slag discharge pipe 17 is fixedly connected to the side of the crushing frame 1 near the slag discharge hole.

[0024] The motor 8 is started, and its output drives the first rotating plate 5 to rotate. Through the fitted rotating plate and the insert plate 9, the rotating shaft and the crushing blade 4 are driven to rotate at high speed to crush the kitchen waste. The crushed waste is filtered through the sealing mesh 17 and discharged from the slag outlet pipe 18. When hard objects such as bone fragments and metal shavings fall into the crushing frame 1 and jam the crushing blade 4, the rotating shaft 3 stops rotating, causing the insert plate 9 and the second rotating plate 6 to bear an instantaneous overload torque. The overload torque causes the first rotating plate 5 and the second rotating plate 6 to separate. The inclined surfaces of the first triangular block and the second triangular block slide against each other, guiding the rotating plate to disengage smoothly. The motor 8 continues to drive the first rotating plate to rotate freely to avoid damage to the motor due to overload, and at the same time to prevent the crushing blade from chipping or deforming due to hard objects jamming.

[0025] like Figure 1 and Figure 3As shown, the fixing mechanism includes two fixing frames 10, two inserts 11, two connecting rods 12, two springs 13, and two pull rings 14. The two fixing frames 10 are symmetrically fixed to both sides of the crushing frame 1. The side wall of the crushing frame 1 is symmetrically provided with square holes. The two inserts 11 are slidably disposed inside the corresponding square holes. Each connecting rod 12 is fixedly connected to one end of the corresponding insert 11. One end of each connecting rod 12 passes through one side of the corresponding fixing frame 10 and is fixedly connected to the corresponding pull ring 14. The two springs 13 are slidably sleeved on the rod wall of the corresponding connecting rod 12. The outer surface of the second rotating plate 6 is provided with an annular slot. Both inserts 11 are trapezoidal, and the inclined surfaces at one end of each insert 11 match the slot.

[0026] When the second rotating plate 6 moves, its edge presses against the inclined surface of the insert block 11. At this time, the insert block 11 presses against the corresponding spring 13. Then, the rebound force of the spring 13 can be used to push the insert block 11 to move into the interior of the annular slot, preventing the second rotating plate 6 from being attracted to the first rotating plate 5 again.

[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A protective structure for the blade of a kitchen waste shredder, comprising a shredding frame (1), characterized in that, The crushing frame (1) is fixedly connected to a partition plate (2). A circular hole is opened on the upper surface of the partition plate (2). A rotating shaft (3) is rotatably connected inside the circular hole. A crushing blade (4) is fixedly connected to the upper end of the rotating shaft (3). A first rotating plate (5) is provided inside the crushing frame (1). A plurality of second rotating plates (6) are fixedly connected to the upper surface of the first rotating plate (5). A driving mechanism is provided inside the crushing frame (1). The rotating shaft (3) rotates through the rotating shaft (3). Electromagnets (7) are fixedly connected to the side of the first rotating plate (5) and the second rotating plate (6) that are close to each other. The two corresponding electromagnets (7) attract each other. A fixing mechanism is symmetrically provided on the side wall of the crushing frame (1). The second rotating plate (6) is matched with the fixing mechanism.

2. The protective structure for the kitchen waste shredder blade according to claim 1, characterized in that, The driving mechanism includes a motor (8) and a plate (9). The motor (8) is fixedly connected to the lower surface of the crushing frame (1). The output end of the motor (8) passes through the lower surface of the crushing frame (1) and is fixedly connected to the first rotating plate (5). One end of the rotating shaft (3) is provided with a square groove. The plate (9) is inserted into the inside of the square groove. The plate (9) is fixedly connected to the upper surface of the second rotating plate (6).

3. The protective structure for the kitchen waste shredder blade according to claim 1, characterized in that, The fixing mechanism includes two fixing frames (10), two inserts (11), two connecting rods (12), two springs (13) and two pull rings (14). The two fixing frames (10) are symmetrically fixed to both sides of the crushing frame (1). The side wall of the crushing frame (1) is symmetrically provided with square holes. The two inserts (11) are slidably disposed inside the corresponding square holes. Each connecting rod (12) is fixedly connected to one end of the corresponding insert (11). One end of each connecting rod (12) passes through one side of the corresponding fixing frame (10) and is fixedly connected to the corresponding pull ring (14). The two springs (13) are slidably sleeved on the rod wall of the corresponding connecting rod (12).

4. The protective structure for the kitchen waste shredder blade according to claim 1, characterized in that, The upper surface of the first rotating plate (5) is symmetrically fixedly connected with a first triangular block (15), and the lower surface of each second rotating plate (6) is fixedly connected with a second triangular block (16). The inclined surface of each first triangular block (15) is respectively attached to the inclined surface of the corresponding second triangular block (16).

5. The protective structure for the kitchen waste shredder blade according to claim 1, characterized in that, The outer surface of the second rotating plate (6) is provided with an annular slot.

6. The protective structure for the kitchen waste shredder blade according to claim 3, characterized in that, Both of the inserts (11) are trapezoidal, and the bevels at one end of both inserts (11) match the slots.

7. The protective structure for the kitchen waste shredder blade according to claim 1, characterized in that, A slag outlet hole is provided on one side of the crushing frame (1), and a sealing mesh (17) is fixedly connected inside the slag outlet hole. A slag outlet pipe (18) is fixedly connected to the side of the crushing frame (1) near the slag outlet hole.

Citation Information

Patent Citations

  • Kitchen garbage crusher blade for treatment

    CN222606588U