Anti-blocking clay rake head device

Abstract

The utility model relates to an anti-blocking clay rake head device which comprises a fixed body, a movable cover, a driving assembly and a buoy box. The movable cover is connected to the front end of the fixed body, and the upper end of the movable cover is connected with the driving assembly; the front end of the fixed body is rotationally connected with the movable cover through a pin shaft hinge, and the upper end of the movable cover is rotationally connected with the driving assembly through a fixed seat; a movable cover water tank is arranged at the lower end in the movable cover, one side of the movable cover water tank passes through a high-pressure flushing rubber hose, and the other side of the movable cover water tank is connected with a plurality of nozzles; the high-pressure flushing rubber hose is communicated with a high-pressure flushing pipe which is communicated with a water source; the lower end of the movable cover water tank is connected with a movable cover grating; the fixed body water tank is arranged below the fixed body; the anti-blocking clay rake head device aims to overcome the defects in the prior art, and the problem that compact clay is prone to being accumulated and blocked in an existing rake head is solved.

Description

Technical Field

[0001] This utility model relates to a device for preventing clay rake head blockage. Background Technology

[0002] A trailing suction hopper dredger is a specialized engineering vessel used for underwater dredging and silt removal, belonging to the suction hopper dredger category. Its working principle involves sucking in mud through drag heads located on both sides or the stern, operating while simultaneously suctioning mud and moving. Trailing suction hopper dredgers are typically equipped with drag head excavators and hydraulic suction devices, enabling them to complete dredging operations while at sea without the need for anchoring, thus improving work efficiency and minimizing impact on waterways.

[0003] In recent years, trailing suction hopper dredgers have seen continuous technological advancements. For example, the successful development of the "New Sturgeon," the world's largest dual-fuel trailing suction hopper dredger, marks a significant breakthrough in environmental protection and energy-saving technologies. This vessel utilizes both liquefied natural gas and diesel fuel, which not only improves environmental performance but also enhances operational efficiency.

[0004] In existing trailing suction hopper dredgers, the rake head is one of the main dredging devices, and different rake head structures have a significant impact on the dredging effect for different soil types. Generally, when dredging dense clay, clay clumps tend to accumulate on the grid, causing the rake head to become clogged and affecting dredging efficiency. Furthermore, after prolonged dredging operations, the sediment can cause severe wear and tear on the rake head's flow channels.

[0005] Therefore, a device for preventing clay rake head blockage is proposed to address the above problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the existing defects and provide an anti-clogging clay rake head device, which improves the problem that existing rake heads are prone to clogging due to the accumulation of dense clay.

[0007] The technical solution to achieve the above objective is: a device for preventing clay clogging, comprising a fixed body, a movable cover, a drive assembly, and a buoy box; the movable cover is connected to the front end of the fixed body, and the upper end of the movable cover is connected to the drive assembly;

[0008] The front end of the fixed body is rotatably connected to the movable cover via a pin hinge, and the upper end of the movable cover is rotatably connected to the drive assembly via a fixed seat; a movable cover water tank is provided at the lower end of the movable cover, and one side of the movable cover water tank is connected to a high-pressure flushing rubber hose, while the other side is connected to multiple nozzles; the high-pressure flushing rubber hose is connected to a high-pressure flushing pipe, which is connected to a water source; the lower end of the movable cover water tank is connected to the movable cover grille; the fixed body water tank is located below the fixed body; a high-pressure flushing pipe is connected above the fixed body water tank, and multiple wear-resistant nozzles are connected below the fixed body water tank.

[0009] Preferably, the drive assembly includes a hydraulic cylinder, which is disposed above the fixed body, and the output end of the hydraulic cylinder is rotatably connected to the fixed base.

[0010] Preferably, the buoy box is connected to the fixed body, a float is provided inside the buoy box, and the movable cover is connected to the float via a connecting rope.

[0011] Preferably, the outer wall above the fixed water tank is provided with a chocolate-colored wear-resistant plate, which is made of high-chromium alloy steel.

[0012] Preferably, the nozzles have two rows, one row facing the movable cover grid, and the other row of nozzles is parallel to the rake teeth.

[0013] Preferably, there can be multiple high-pressure water flushing rubber hoses.

[0014] Preferably, the plurality of nozzles are arranged in a straight line at equal intervals on the movable shroud water tank.

[0015] The beneficial effects of this invention are as follows: This anti-clogging clay rake head device improves the problem of dense clay accumulation and clogging that easily occurs in ordinary rake heads by changing the position of the movable cover grid and the angle of the high-pressure water jet nozzle. Furthermore, the flow field of water diversion through the rake head is improved, thereby increasing the efficiency of dredging operations. In addition, covering the surface of the mud flow channel of the rake head with a chocolate-colored wear-resistant plate enhances the wear resistance of the flow channel, thus extending the service life of the rake head. Attached Figure Description

[0016] Figure 1 This is a side view of the anti-clogging clay rake head device of this utility model;

[0017] Figure 2 This is a top view of the anti-clogging clay rake head device of this utility model;

[0018] Figure 3 This is a front view of the anti-clogging clay rake head device of this utility model;

[0019] Figure 4 This is a schematic diagram illustrating the function of the movable cover grille of this utility model;

[0020] Figure 5 This is a schematic diagram illustrating the application of the nozzle of this utility model;

[0021] Figure 6 This is a schematic diagram illustrating the application of the movable cover grille of this utility model.

[0022] In the diagram: 1. Fixed body; 2. Movable cover; 3. Hydraulic cylinder; 4. High-pressure water jet rubber hose; 5. Buoy box; 6. Pin hinge; 7. Water tank; 8. Nozzle; 9. Movable cover grid; 10. Fixed seat; 11. Fixed body water tank; 12. Wear-resistant block nozzle; 13. High-pressure water jet pipe; 14. Rake teeth. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-6 As shown, an anti-clogging clay rake head device includes a fixed body 1, a movable cover 2, a drive assembly, and a buoy box 5; the movable cover 2 is connected to the front end of the fixed body 1, and the upper end of the movable cover 2 is connected to the drive assembly.

[0026] The front end of the fixed body 1 is rotatably connected to the movable cover 2 via a pin hinge 6. The upper end of the movable cover 2 is rotatably connected to the drive assembly via a fixed seat 10. A movable cover water tank 7 is installed at the lower end inside the movable cover 2. One side of the movable cover water tank 7 is connected to a high-pressure flushing rubber hose 4, and the other side is connected to multiple nozzles 8. The high-pressure flushing rubber hose 4 is connected to a high-pressure flushing pipe 13, and the high-pressure flushing pipe 13 is connected to a water source. The lower end of the movable cover water tank 7 is connected to the movable cover grille 9. The fixed body water tank 11 is located below the fixed body 1. The high-pressure flushing pipe 13 is connected above the fixed body water tank 11, and multiple wear-resistant block nozzles 12 are connected below the fixed body water tank 11.

[0027] Specifically, the drive assembly includes a hydraulic cylinder 3, which is positioned above the fixed body 1, and the output end of the hydraulic cylinder 3 is rotatably connected to the fixed seat 10.

[0028] Specifically, the buoy box 5 is connected to the fixed body 1, and a float is installed inside the buoy box 5. The movable cover 2 is connected to the float via a connecting rope.

[0029] Specifically, the outer wall above the fixed water tank 11 is provided with a chocolate wear-resistant plate. The chocolate wear-resistant plate is made of high chromium alloy steel. It is small in size and easy to cut into different sizes. It can be easily welded to the corners and curved parts of various products that require wear-resistant protection, which can improve the wear resistance of the internal flow channel of the rake head.

[0030] The nozzles 8 are arranged in two rows, one row facing the movable hood grille 9, and the other row parallel to the rake teeth 14. Multiple nozzles 8 are arranged in a straight line at equal intervals on the movable hood water tank 7. Multiple high-pressure flushing rubber hoses 4 are available.

[0031] Specifically, the fixed body 1 and the movable cover assembly 2 are connected by a pin hinge 6. The rake head hydraulic rod controls the angle of the movable cover 2 through a telescopic plunger rod. High-pressure seawater flows into the water tank of the movable cover 2 through the high-pressure flushing rubber hose 4, and then sprays out from the nozzle 8 on the water tank to disperse the clay and dilute the mud.

[0032] Specifically, the movable cover grid 9 is set at the lower end of the water tank 7, and the direction of the movable cover high-pressure water jet nozzle 8 is changed to spray towards the grid and the soil layer, which can both disperse the soil and wash the grid to prevent clay from adhering to the rake head.

[0033] Specifically, when the rake head encounters large, hard clods of soil or rocks, these clods or rocks can easily get stuck in the grid at the rake head's suction inlet, and ordinary rake heads cannot remove them in time. However, the movable grid 9 in this structure can effectively remove hard clods of soil or rocks from the rake head's suction inlet. This improves the situation where the rake head is easily clogged by dense clay.

[0034] The fixed water tank 11 is located below the fixed body 1. A chocolate-patterned abrasion-resistant plate is installed on the upper outer wall of the fixed water tank 11 to improve abrasion resistance and extend the service life of the rake head.

[0035] Specifically, the buoy box 5 is connected to the fixed body 1, and a float is installed inside the buoy box 5. The rake arm on the ship is connected to the float via an anchor chain. When the rake head is impacted or subjected to excessive drag, the bolt connecting the rake head breaks, causing the rake head to fall off. At this time, the buoy box 5 is opened, and the brightly colored float inside, along with its connecting rope, will float to the surface, making it easier to find the lost rake head.

[0036] This anti-clogging clay rake head device improves the problem of dense clay accumulation and clogging that easily occurs in ordinary rake heads by changing the position of the movable cover grid 9 and the angle of the high-pressure water jet nozzle 8. It also improves the flow field of water diversion in the rake head, thereby increasing the efficiency of dredging operations. Furthermore, covering the surface of the mud flow channel of the rake head with a chocolate-colored wear-resistant plate enhances the wear resistance of the flow channel, thus extending the service life of the rake head.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for preventing clay clogging with a rake head, characterized in that, Includes a fixed body (1), a movable cover (2), a drive assembly, and a buoy box (5); The movable cover (2) is connected to the front end of the fixed body (1), and the upper end of the movable cover (2) is connected to the drive assembly; The front end of the fixed body (1) is rotatably connected to the movable cover (2) via a pin hinge (6), and the upper end of the movable cover (2) is rotatably connected to the drive assembly via a fixed seat (10); a movable cover water tank (7) is provided at the lower end inside the movable cover (2), and one side of the movable cover water tank (7) is connected to a high-pressure flushing rubber hose (4), and the other side is connected to multiple nozzles (8); the high-pressure flushing rubber hose (4) is connected to a high-pressure flushing pipe (13), and the high-pressure flushing pipe (13) is connected to a water source; the lower end of the movable cover water tank (7) is connected to the movable cover grille (9); the fixed body water tank (11) is located below the fixed body (1); the upper part of the fixed body water tank (11) is connected to the high-pressure flushing pipe (13), and the lower part of the fixed body water tank (11) is connected to multiple wear-resistant block nozzles (12).

2. The anti-clogging clay rake head device according to claim 1, characterized in that, The drive assembly includes a hydraulic cylinder (3), which is disposed above the fixed body (1), and the output end of the hydraulic cylinder (3) is rotatably connected to the fixed seat (10).

3. The anti-clogging clay rake head device according to claim 1, characterized in that, The buoy box (5) is connected to the fixed body (1), and a float is provided inside the buoy box (5). The movable cover (2) is connected to the float by a connecting rope.

4. The anti-clogging clay rake head device according to claim 1, characterized in that, The outer wall above the fixed water tank (11) is provided with a chocolate wear-resistant plate, which is made of high chromium alloy steel.

5. The anti-clogging clay rake head device according to claim 1, characterized in that, The nozzles (8) have two rows, one row facing the movable cover grid (9), and the other row of nozzles is parallel to the rake teeth (14).

6. The anti-clogging clay rake head device according to claim 1, characterized in that, The high-pressure water flushing rubber hose (4) can be multiple.

7. The anti-clogging clay rake head device according to claim 1, characterized in that, Multiple nozzles (8) are arranged in a straight line at equal intervals on the movable cover water tank (7).

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