Quick-release hanging ring sludge box

By using a spiral pushing mechanism and a quick-release lifting ring design, the problems of uneven sludge loading in the sludge tank and rapid replacement of the lifting rings are solved, achieving uniform sludge distribution and safe and efficient sludge transportation.

CN224241760UActive Publication Date: 2026-05-15SHANGHAI ENVIRONMENTAL SANITATION AUTO TRANSPORTATION OFFICE +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ENVIRONMENTAL SANITATION AUTO TRANSPORTATION OFFICE
Filing Date
2025-05-07
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Uneven loading of sludge in sludge bins during sludge transportation makes it difficult to quickly replace lifting rings and hook-lift truck components, and existing replacement methods are subject to environmental limitations, posing safety hazards.

Method used

A spiral pushing mechanism is used to achieve uniform sludge distribution, and a quick-release lifting ring mechanism is designed to simplify replacement. Combined with hydraulic drive and power transmission components, it realizes uniform sludge pushing in the sludge tank and quick replacement of the lifting ring.

Benefits of technology

The sludge is evenly distributed, extending the life of the lifting rings, simplifying the replacement process, improving safety and equipment lifespan, and reducing maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a quick-release hanging ring sludge box, which comprises a sludge box body, a pushing mechanism in the sludge box body, a quick-release hanging ring mechanism arranged on the sludge box body, a power transmission piece, an air extractor and dust removal equipment, a screw shaft is installed on the upper portion in a sludge box body through a front support, a protective cover, a driving gear box, a diaphragm coupling, a connecting sleeve assembly, a connecting flange and a safety plate, the screw shaft is connected with an external power source through a power transmission piece, a quick-release hanging ring mechanism is arranged on a front plate of the sludge box body, and hanging ring reinforcing plates and hanging ring side bending reinforcing plates are arranged on the two sides of the front plate. The lifting ring shaft is installed between the lifting ring reinforcing plates on the two sides. The utility model has the advantages that the sludge is uniformly distributed in the box body, the loading capacity of the sludge is increased, the abrasion loss of the lifting ring shaft is effectively reduced by the quick-release lifting ring mechanism, the maintenance period is prolonged, the on-site replacement can be realized, the replacement is simple, open fire is not needed, and the site is not limited.
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Description

Technical Field

[0001] This utility model relates to a sludge transport device in environmental protection equipment, and in particular to a quick-release lifting ring sludge box. Background Technology

[0002] The main methods of sludge transportation include pipeline transportation, truck transportation, barge transportation, and combined transportation methods. The choice of method depends on the nature and quantity of the sludge, the sludge treatment method, the transportation distance and cost, and the final disposal and utilization methods. Truck transportation is suitable for small and medium-sized wastewater treatment plants, as it is not limited by the destination and does not require intermediate transshipment. Truck transportation has the advantages of convenience and high flexibility. However, the transport capacity is relatively small, and the transportation cost is relatively high. During transportation, it can generate noise and odor, and sometimes sludge can leak, causing significant environmental impact. Furthermore, in truck transportation, sludge is often loaded and unloaded in a straight line into the container, resulting in uneven sludge loading and causing the sludge to accumulate at an angle, preventing the container from being completely filled. Therefore, a well-sealed, easily automated, closed-loop feeding container is needed to ensure that the sludge is evenly distributed within the container. Another issue is the unique nature of sludge transport by truck. After the sludge containers are loaded, the combined weight of the container itself (4 tons) and the sludge (10 tons) results in a total lifting capacity of approximately 14 tons for the boom. This places a significant load on the lifting rings of the sludge containers. Furthermore, the contact area between the vehicle boom hook and the lifting rings after break-in is relatively concentrated, resulting in a small contact surface and a rigid connection during lifting. This exacerbates wear. While lubrication is used between components, the lifting rings are consumable parts with a short lifespan. Therefore, regular inspection and replacement of the boom hooks and lifting rings are necessary for sludge containers. Vehicles can be inspected daily before operation, but sludge containers are mostly scattered across work sites and storage areas, making periodic inspections difficult and prone to oversight. If damage or breakage of the lifting rings is not detected promptly, it can lead to accidents such as the boom detaching from the container during lifting, unloading, and transport. Furthermore, the current maintenance method involves towing the sludge tank to a repair shop for replacement, which requires on-site operation using open flames and is greatly limited by environmental conditions. Therefore, the sludge truck transportation industry needs a quick-change lifting ring that does not require open flames, specialized personnel, or specific locations for replacement. Thus, the market demands a quick-release lifting ring for sludge tanks. Summary of the Invention

[0003] The purpose of this invention is to address the deficiencies in existing technologies by providing a quick-release sludge container with lifting rings to solve the problem of uneven sludge loading in sludge containers during sludge transportation and to facilitate the rapid replacement of sludge container lifting rings and hook components on hook-lift trucks.

[0004] This utility model includes: a sludge tank, a pushing mechanism inside the sludge tank, a quick-release lifting ring mechanism installed on the sludge tank, a power transmission component, and an air extraction device. The pushing mechanism is a spiral pushing mechanism. This utility model uses a spiral pushing mechanism to push sludge, achieving uniform distribution of sludge within the sludge tank. The spiral pushing mechanism includes: a screw shaft, a front support, a protective cover, a drive gearbox, a diaphragm coupling, a connecting sleeve assembly, a connecting flange, and a safety plate. The quick-release lifting ring mechanism includes: a lifting ring side bending reinforcement plate A, a lifting ring reinforcing plate A, a lifting ring shaft, a top cover plate, a lifting ring reinforcing plate B, a lifting ring side bending reinforcement plate B, a bushing, a side sealing plate, an outer locking bushing, and a reinforcing sleeve. The sludge tank is characterized by being composed of a front plate, two side plates, a top plate, a bottom plate, and a rear door. The top plate has a sludge inlet and a power input port, and a hydraulic cylinder drives the opening and closing of the rear door and the top plate. Driven by a hydraulic cylinder, the rear door rotates upwards, allowing sludge to be unloaded from the sludge tank; conversely, it closes. The sludge tank contains a spiral pushing mechanism. One end of the screw shaft is connected to the front support, and the other end is connected to the protective cover and drive gearbox. A diaphragm coupling, connecting sleeve assembly, connecting flange, and safety plate are installed between the protective cover and the drive gearbox. Multiple diaphragm plates are fitted inside the connecting sleeve assembly and connected to the drive gearbox via the connecting flange. The diaphragm coupling, as the main connecting component of the mechanical transmission, uses rigid or flexible connections to combine the drive shaft and driven shaft, realizing the transmission of rotational motion and torque. It can absorb axial, radial, or angular offsets caused by installation errors, thermal expansion, or load deformation. The drive gearbox operates, causing the connecting sleeve assembly to rotate, with the connecting flange operating synchronously. The safety plate is installed at the end of the screw shaft, serving to adjust and prevent detachment. The pushing mechanism is installed in the upper part of the sludge tank. The screw shaft is installed laterally below the sludge inlet on one side of the sludge tank. The front support is connected to the inner side of the front wall of the sludge tank. The front support is equipped with a bearing seat that cooperates with the bearing on the screw shaft. The screw shaft is connected to the power transmission component via a protective cover and a drive gearbox. The front end of the protective cover is connected to the screw shaft, and the end of the protective cover is equipped with an output shaft bearing seat. The power transmission component is located in the power input port on the top plate.

[0005] The power transmission component features a quick-connect coupling for plug-and-play operation. It connects to an external power source via a power input port. The screw conveyor mechanism uses an external power source (typically a towed hooklift truck), namely a quick-release lifting ring sludge tank, achieving weight reduction while improving operational safety. When sludge falls into the sludge tank from the sludge inlet, the screw shaft rotates, evenly pushing the sludge to the bottom of the tank, ensuring uniform distribution and maximizing the tank's load capacity. The quick-release lifting ring mechanism is located on the front panel of the sludge tank. Lifting ring reinforcement plates A and B, and side-bending reinforcement plates A and B are located on both sides of the front panel of the sludge tank. The lifting ring shaft is installed between the lifting ring reinforcement plates A, B, and side bending reinforcement plates A and B on both sides of the front plate of the sludge tank via bushings. The bushings are installed on both sides of the lifting ring shaft via the upper cover plates, side sealing plates, outer locking bushings, and reinforcing sleeves. The lifting ring shaft can rotate and swing, effectively reducing wear and extending maintenance cycles. The quick-release lifting ring mechanism is designed to connect with the sludge hooklift truck, allowing the truck's hook to engage the lifting ring shaft and pull the sludge tank onto the truck, thus facilitating sludge transfer. The quick-release lifting ring mechanism is easy to replace and can be performed on-site. An air extraction device is installed at the top of the sludge tank.

[0006] The air extraction device located at the top of the sludge tank has an exhaust channel, and the air inlet of the air extraction device is arranged side by side with the sludge inlet.

[0007] The opening and closing of the rear door and top plate of the sludge tank are driven by hydraulic cylinders.

[0008] The sludge tank is equipped with reinforcing ribs on the side panels, top panel, bottom panel, front panel, and rear door.

[0009] The side plates on both sides of the sludge tank are designed as inclined surfaces that slope slightly outward from the bottom plate to the top plate, with the angle between the inclined surface and the vertical line being 0.3° to 0.5°.

[0010] The diaphragm coupling consists of multiple mold plates, which are fitted inside the connecting sleeve assembly.

[0011] The advantages of this invention are that the spiral pushing mechanism in the sludge tank ensures even distribution of sludge within the tank, increasing its load-bearing capacity; the quick-release lifting ring mechanism effectively reduces wear on the lifting ring shaft, extending maintenance cycles. Furthermore, it allows for on-site replacement, is simple, requires no open flame, and is not limited by location. This solves the problem of rapid replacement of sludge container lifting rings and hook-lift truck components, enabling upgrades to existing equipment through retrofitting. Attached Figure Description

[0012] Figure 1 A schematic diagram of the structure of this utility model;

[0013] Figure 2 A schematic diagram of the spiral pushing mechanism of this utility model;

[0014] Figure 3 A schematic diagram of the quick-release lifting ring mechanism of this utility model;

[0015] Figure 4 A schematic diagram of the empty sludge tank structure of this utility model;

[0016] Figure 5 A schematic diagram of the sludge tank full-box right view of this utility model;

[0017] Figure 6 A schematic diagram of the main structure of the sludge tank when it is full;

[0018] Figure 7 A schematic diagram of the connection structure between the hooklift truck and the sludge box of this utility model;

[0019] Figure 8 Structural diagrams of the hydraulic cylinder, rear door, and top plate of this utility model;

[0020] Figure 9 A partially enlarged structural diagram of the protective cover and drive gearbox of this utility model.

[0021] In the diagram: 1. Front support, 2. Screw shaft, 3. Protective cover, 4. Drive gearbox, 5. Diaphragm coupling, 6. Connecting sleeve assembly, 7. Connecting flange, 8. Safety plate, 9. Lifting eye side bending reinforcement plate A, 10. Lifting eye reinforcement plate A, 11. Top cover plate, 12. Lifting eye reinforcement plate B, 13. Lifting eye shaft, 14. Bushing, 15. Side sealing plate, 16. External locking bushing, 17. Reinforcing sleeve, 18. Front plate, 19. Side plate, 20. Top plate, 21. Bottom plate, 22. Rear door, 23. Output shaft end bearing seat, 24. Sludge inlet, 25. Power input port, 26. Drive gearbox bearing, 27. Hydraulic cylinder. Detailed Implementation

[0022] The embodiments of this utility model are further described below with reference to the accompanying drawings.

[0023] See Figures 1-9This embodiment includes: a sludge tank, a pushing mechanism inside the sludge tank, a quick-release lifting ring mechanism installed on the sludge tank, a power transmission component, and an air extraction device. The pushing mechanism is a spiral pushing mechanism; this embodiment uses a spiral pushing mechanism to push the sludge, achieving uniform distribution of the sludge within the sludge tank. The spiral pushing mechanism includes: a screw shaft 2, a front support 1, a protective cover 3, a drive gearbox 4, a diaphragm coupling 5, a connecting sleeve assembly 6, a connecting flange 7, and a safety plate 8. The quick-release lifting ring mechanism includes: a lifting ring side bending reinforcement plate A 9, a lifting ring reinforcement plate A10, a lifting ring shaft 13, an upper cover plate 11, a lifting ring reinforcement plate B12, a lifting ring side bending reinforcement plate B 24, a bushing 14, a side sealing plate 15, an external locking bushing 16, and a reinforcing sleeve 17. The sludge tank consists of a front plate 18, two side plates 19, a top plate 20, a bottom plate 21, and a rear door 23. See also... Figure 1 The side panels 19 of the sludge tank are designed as slightly outward-sloping structures from the bottom plate 21 to the top plate 20, with an angle of 0.3° to 0.5° between the slope and the vertical line; in this embodiment, the outward slope is 0.5°. Reinforcing ribs are provided on the side panels 19, top plate 20, bottom plate, front plate 18, and rear door 22 of the sludge tank. The top plate 20 has a sludge inlet 25 and a power input port 26. A hydraulic cylinder 27 drives the opening and closing of the rear door 23 and the top plate 20. See also... Figure 8 Driven by a hydraulic cylinder, the rear door 23 rotates upwards, allowing the sludge in the sludge tank to be unloaded; conversely, it closes. The sludge tank is equipped with a spiral pushing mechanism, which is described in detail below. Figure 2 , Figure 4 One end of the screw shaft 2 is connected to the front support 1, and the other end is connected to the protective cover 3 and the drive gearbox 4. The diaphragm coupling 5, connecting sleeve assembly 6, connecting flange 7, and safety plate 8 are installed between the rear shaft and the drive gearbox. The diaphragm coupling 5 consists of multiple molded plates. These multiple molded plates are fitted inside the connecting sleeve assembly 6 and connected to the drive gearbox 4 via the connecting flange 7. The safety plate 8 is installed at the end of the screw shaft 2. As the main connecting component of the mechanical transmission, the diaphragm coupling 5 connects the driving shaft and the driven shaft through rigid or flexible connections, realizing the transmission of rotational motion and torque. It can also absorb axial, radial, or angular offsets caused by installation errors, thermal expansion, or load deformation. The drive gearbox 4 operates, driving the connecting sleeve assembly 6 to rotate, and the connecting flange 7 operates synchronously. The safety plate 8, installed at the end of the screw shaft 2, serves to adjust and prevent detachment. See also... Figure 9The pushing mechanism is installed in the upper part of the sludge tank, and the screw shaft 2 is horizontally installed below the sludge inlet 24 on one side of the sludge tank. The screw shaft 2 is connected to the power transmission component via the rear shaft 3 and the drive gearbox 4. The power transmission component is located in the power input port 25 on the top plate. The power transmission component has a quick connector for plug-and-play operation. The power transmission component is connected to an external power source via the power input port 25. The power input of the screw pushing mechanism adopts an external power source, that is, the quick-release lifting ring sludge tank does not contain a power source, which reduces weight and improves safety. The front support 1 has a bearing seat that mates with the bearing on the screw shaft 2. The front support 1 is connected to the inner side of the front wall of the sludge tank. The protective cover 3, the drive gearbox 4 and the power transmission component are connected. The end of the protective cover 3 is equipped with a drive gearbox bearing 26. After the sludge falls into the sludge tank through the sludge inlet 25, the screw shaft 2 rotates to evenly push the sludge, ensuring it falls evenly to the bottom of the sludge tank. This achieves uniform distribution of the sludge within the tank, maximizing its load-bearing capacity. (See also...) Figure 5 , Figure 6 The quick-release lifting ring mechanism is mounted on the front panel 18 of the sludge tank. (See also...) Figure 3 The lifting ring reinforcing plates A10, B12, A9, and B24 are installed on both sides of the front plate 18. The lifting ring shaft 13 is mounted between the lifting ring reinforcing plates A10, B12, A9, and B24 via bushings 14. The bushings 14 are mounted on both sides of the lifting ring shaft 13 via the upper cover plate 11, side sealing plate 15, outer locking bushing 16, and reinforcing sleeve 17. The lifting ring shaft 13 can rotate and swing, effectively reducing wear and extending the maintenance cycle. The quick-release lifting ring mechanism is designed to connect with the sludge hook truck, allowing the sludge container to be pulled onto the sludge truck via the hook hook of the sludge hook truck. This then enables sludge transfer. (See also...) Figure 7 The quick-release lifting ring mechanism is easy to replace, and the replacement operation can be carried out on-site. This embodiment prioritizes safety and extending the equipment's lifespan, enabling existing equipment to be upgraded by adding a pushing mechanism and replacing the lifting ring mechanism.

[0024] The quick-release sludge tank with lifting ring is equipped with an air extraction device and dust removal equipment. The air extraction device located on the top of the sludge tank has an exhaust channel, and the air inlet of the air extraction device is arranged side by side with the sludge inlet 25.

Claims

1. A quick-release sludge tank with lifting rings, comprising: The sludge tank includes a sludge feeding mechanism, a quick-release lifting ring mechanism, a power transmission component, an air extraction device, and a dust removal device. The quick-release lifting ring mechanism is installed on the sludge tank and includes a lifting ring side bending reinforcement plate A, a lifting ring reinforcing plate A, a lifting ring shaft, a top cover plate, a lifting ring reinforcing plate B, a lifting ring side bending reinforcement plate B, a bushing, a side sealing plate, an outer locking bushing, and a reinforcing sleeve. The sludge tank is characterized by a front plate, two side plates, a top plate, a bottom plate, and a rear door. The top plate has a sludge inlet and a power input port. The opening and closing of the rear door and the top plate are driven by a hydraulic cylinder installed on the sludge tank. The sludge tank contains a pushing mechanism, which is a spiral pushing mechanism. One end of the screw shaft is connected to the front support, and the other end is connected to a protective cover and a drive gearbox. A diaphragm coupling, a connecting sleeve assembly, a connecting flange, and a safety plate are installed between the protective cover and the drive gearbox. The pushing mechanism is installed in the upper part of the sludge tank. The shaft is horizontally installed below the sludge inlet on one side of the sludge tank. The front support is connected to the inner side of the front wall of the sludge tank. The front support has a bearing seat that mates with the bearing on the screw shaft. The screw shaft is connected to the power transmission component via a protective cover and a drive gearbox. The front end of the protective cover is connected to the screw shaft, and the end of the protective cover has an output shaft bearing seat. The power transmission component is located in the power input port on the top plate. The power transmission component has a quick connector. The quick-release lifting ring mechanism is located on the outer side of the front plate of the sludge tank. Lifting ring reinforcing plate A, lifting ring reinforcing plate B, lifting ring side bending reinforcing plate A, and lifting ring side bending reinforcing plate B are located on both sides of the front plate of the sludge tank. The lifting ring shaft is installed between the lifting ring reinforcing plates A, B, and B on both sides of the front plate of the sludge tank via bushings. The bushings are installed on both sides of the lifting ring shaft via the upper cover plates, side sealing plates, outer locking bushings, and reinforcing sleeves on both sides. An air extraction device is located at the top of the sludge tank.

2. The quick-release sludge tank with lifting ring according to claim 1, characterized in that... The air extraction device located at the top of the sludge tank has an exhaust channel, and the air inlet of the air extraction device is arranged side by side with the sludge inlet.

3. The quick-release sludge tank with lifting ring according to claim 1, characterized in that... The opening and closing of the rear door and top plate of the sludge tank are driven by hydraulic cylinders.

4. The quick-release sludge tank with lifting ring according to claim 1, characterized in that... The sludge tank is equipped with reinforcing ribs on the side panels, top panel, bottom panel, front panel, and rear door.

5. The quick-release sludge tank with lifting ring according to claim 1, characterized in that... The side plates on both sides of the sludge tank are designed as inclined surfaces that slope slightly outward from the bottom plate to the top plate, with the angle between the inclined surface and the vertical line being 0.3° to 0.5°.

6. The quick-release sludge tank with lifting ring according to claim 1, characterized in that... The diaphragm coupling consists of multiple mold plates, which are fitted inside the connecting sleeve assembly.