Rake head for seabed dredging and mud suction

By designing the flip-open inner rod assembly and hook tooth structure on the rake head of the dredging sludge suction under the seabed, as well as the elastic push plate and adaptive flip-over rake tooth structure, the problems of secondary pollution of polluted waste and vulnerability of rake tooth structure are solved, and more efficient pollution control and longer service life are achieved.

CN222822388UActive Publication Date: 2025-05-02SHANDONG HAISHUN PORT & SHIPPING ENG CO LTD
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Patent Information

Application Number
CN202421822810.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-30
Publication Date
2025-05-02
Estimated Expiration
2034-07-30

AI Technical Summary

Technical Problem

When the existing rake heads of dredged mud absorbing mud discharge debris, they will bring out polluted waste, resulting in secondary pollution in the seawater. The rake tooth structure is easily damaged after collision, making it difficult to replace and install.

Method used

A rake head is designed. After opening at the flow port position, the inner rod assembly is flipped and opened. The hook tooth structure hooks the contaminated waste to prevent it from floating in sea water. It also elastically pushes the plate structure and the adaptively flipped rake tooth structure to reduce collision damage and facilitate replacement.

Benefits of technology

It effectively avoids polluted waste floating in seawater, causing secondary pollution, improves the collision resistance of the rake tooth structure, extends the service life, and simplifies the replacement and installation process of the rake tooth structure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222822388U_ABST
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Abstract

The utility model provides a drag head for seabed dredging and mud suction, and relates to the field of drag heads. The internal part structure is welded and fixed in the rake head body, the bottom of the internal part structure is rotationally connected with the rake tooth structure through the connector structure, and the two pushing plate structures are fixed above the rear end of the rake tooth structure. After the rake tooth structure is collided, self-adaptive overturning is achieved through the fixing rod, the rake tooth structure makes contact with the bottom of the connector structure through the pushing plate structure at the same time, by means of the elasticity of the pushing plate structure, collision force is eliminated, damage and influence on the rake tooth structure are reduced, and after the rake tooth structure is damaged, fixing of the fixing rod is relieved, and the fixing rod is pulled and taken out. The fixing of the rake tooth structure is relieved, the rake tooth structure is convenient and fast to replace, and the problems that after a common rake head for seabed dredging and mud suction is damaged or lost, replacement and installation are strenuous, and after the rake tooth structure is collided, the damage probability is large are solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of rake heads, in particular to a rake head used for seabed dredging and mud suction. Background Art

[0002] Seabed dredging is a complex process involving seabed excavation, filling and mining. In this process, the rake head, as an important dredging tool, plays a key role. The design and use of the rake head enables the dredger to effectively collect sediment on the seabed, which is of great significance for increasing the water depth of the sea area, improving the conditions of the waterway, and promoting the construction and development of ports and docks. Especially in the dredging of waterways for ships to enter and leave the port, the rake head is more widely used. By removing part of the sediment on the seabed or removing the rock layer on the seabed through underwater blasting and reef blasting, the water depth of the sea area is increased to ensure the safe passage of ships. Some projects for laying submarine pipelines also require submarine dredging, and the rake head also plays an indispensable role at this time. The mud or rocks collected by the rake head should be thrown into the selected and approved areas to ensure the environmental protection and safety of the dredging process. The rake head for submarine dredging and suction is a specially designed tool for submarine dredging and suction. The outer end of the rake head is usually provided with a flow port with a controllable closing angle to allow water and other debris to pass through, which is used to adjust the resistance. The common rake heads for submarine dredging and suction on the market will discharge the debris on the seabed through the flow port, but some polluted waste will also be discharged together and float in the seawater, causing secondary pollution. In addition, the rake head tooth structure is relatively cumbersome to fix. After being damaged or lost, it is more likely to be replaced and installed. In addition, the rake tooth structure is more likely to be damaged after a collision. Utility Model Content

[0003] The disclosed embodiment relates to a drag head for seabed dredging and mud suction, wherein after the flip plate assembly is opened at the circulation port position, the flip plate assembly drives the inner rod assembly to flip and open together, and after opening, the inner rod assembly is evenly arranged inside the circulation port, so that during the movement of the drag head body, debris and polluted waste can flow together, and since hook teeth are provided inside the inner rod assembly, when it contacts the polluted waste, the polluted waste can be hooked and fixed, so that after the drag head body is lifted up and taken out, the polluted waste can be lifted up and taken out together, so as to prevent the polluted waste from floating in the sea water after passing through the circulation port and causing secondary pollution.

[0004] According to a first aspect of the present disclosure, there is provided a rake head for seabed dredging and mud suction, specifically comprising: a rake head body; the left end of the rake head body is connected to a suction tube, a flip plate assembly is installed on the right side of the rake head body through a flow port, a sealing plate made of rubber is provided at the bottom of the flip plate assembly, an evenly arranged inner rod assembly is fixed at the bottom of the flip plate assembly, and evenly arranged hook teeth are provided inside the inner rod assembly of an arc structure; an inner part structure; the inner part structure is welded and fixed inside the rake head body, the bottom of the inner part structure is rotatably connected to the rake tooth structure through a connecting head structure, two push plate structures are fixed above the rear end of the rake tooth structure, and the top of the push plate structure made of elastic metal is a circular structure and contacts with the bottom of the connecting head structure.

[0005] In at least some embodiments, a circulation port is opened on the right side of the rake head body, the interior of the circulation port is connected to the interior of the rake head body, and a support assembly is fixed to the upper right side of the rake head body through a support plate; the support assembly is rotatably connected to the top of the pushing assembly, and the bottom end of the freely retractable pushing assembly is rotatably connected to the connecting rod assembly; the connecting rod assembly is fixedly connected to the reinforcing assembly, and the reinforcing assembly is welded and fixed to the top of the flip plate assembly, and three connecting block assemblies are fixed on the inner side of the flip plate assembly, and the connecting block assembly is rotatably connected to the side of the rake head body.

[0006] In at least some embodiments, the top of the inner part structure is provided with evenly arranged top grooves, which are an inclined structure; the bottom of the inner part structure is welded and fixed with evenly arranged connecting head structures, and the bottom end of the connecting head structure is an inclined structure; an inner groove is provided above the front end of the connecting head structure, a through hole is provided through the connecting head structure, the interior of the inner groove is connected with the interior of the through hole, a fixing rod is inserted through the through hole and the interior of the rake tooth structure, and a groove is provided at the top of the fixing rod; a block structure made of elastic metal material is fixed inside the inner groove, the bottom end of the block structure is embedded in the interior of the groove and limits the fixing rod, a connecting groove is provided at the top of the rake tooth structure, a connecting head structure is inserted into the interior of the connecting groove, and an inclined groove is provided on the side of the connecting groove.

[0007] The utility model provides a rake head for seabed dredging and mud suction, which has the following beneficial effects:

[0008] After the flip plate assembly is opened at the flow port position, it drives the inner rod assembly to flip and open together. After opening, the inner rod assembly is evenly arranged inside the flow port, so that during the movement of the rake head body, debris and polluted waste flow together. Since the inner rod assembly is provided with hook teeth inside, when it comes into contact with the polluted waste, the polluted waste is hooked and fixed, so that after the rake head body is lifted up and taken out, the polluted waste is also lifted up and taken out, so as to prevent the polluted waste from floating in the sea water after passing through the flow port and causing secondary pollution.

[0009] The rake tooth structure is located at the bottom of the rake head body for use. During the movement of the rake head body, if the rake tooth structure encounters a collision, it can be adaptively flipped through the fixing rod. The rake tooth structure simultaneously contacts the bottom of the connecting head structure through the pushing plate structure. With the help of the elasticity of the pushing plate structure, the collision force is eliminated, thereby reducing damage and impact on the rake tooth structure. When the rake tooth structure is damaged, the elastic metal block structure can be directly pulled to tilt it so that it can detach from the inside of the groove, release the fixation of the fixing rod, pull the fixing rod out, release the fixation of the rake tooth structure, and facilitate the replacement of the rake tooth structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0011] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0012] In the attached picture:

[0013] Figure 1 A three-dimensional structural schematic diagram of the present application is shown;

[0014] Figure 2 A bottom-up structural schematic diagram of the present application is shown;

[0015] Figure 3 The figure shows the exploded bottom view structure diagram of the present application;

[0016] Figure 4 The schematic diagram of the exploded three-dimensional structure of the drag head body of the present application is shown;

[0017] Figure 5 The schematic diagram of the exploded three-dimensional structure of the internal structure of the present application is shown;

[0018] Figure 6 The schematic diagram of the internal component structure of the present application is shown as an exploded bottom view;

[0019] Reference numerals list

[0020] 1. Rake head body; 101. Flow port; 102. Support assembly; 103. Push assembly; 104. Connecting rod assembly; 105. Reinforcement assembly; 106. Turning plate assembly; 107. Connecting block assembly; 108. Inner rod assembly;

[0021] 2. Internal structure; 201. Top groove; 202. Connector structure; 203. Inner groove; 204. Fixing rod; 205. Block structure; 206. Rake tooth structure; 207. Connecting groove; 208. Push plate structure. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figures 1 to 6 :

[0024] The utility model proposes a rake head for seabed dredging and mud suction, comprising: a rake head body 1; the left end of the rake head body 1 is connected to a suction pipe, a flip plate assembly 106 is installed on the right side of the rake head body 1 through a flow port 101, a sealing plate made of rubber is provided at the bottom of the flip plate assembly 106 to control the size of the flow port 101, to facilitate the control of the flow of debris, and to adjust the flow resistance at the same time, an evenly arranged inner rod assembly 108 is fixed at the bottom of the flip plate assembly 106, and evenly arranged hook teeth are provided inside the inner rod assembly 108 of an arc structure, and the inner rod assembly 108 drives the hook teeth to contact with polluted waste, collects the polluted waste, and avoids secondary pollution; internal parts Structure 2; the inner structure 2 is welded and fixed inside the rake head body 1, and the bottom of the inner structure 2 is rotatably connected to the rake tooth structure 206 through the connecting head structure 202. Two push plate structures 208 are fixed above the rear end of the rake tooth structure 206. The top of the push plate structure 208 made of elastic metal material is a circular structure and contacts with the bottom of the connecting head structure 202, so that the rake tooth structure 206 can be easily replaced and disassembled through the connecting head structure 202. At the same time, after the rake tooth structure 206 encounters a collision, it drives the push plate structure 208 to rotate together, so that the push plate structure 208 can eliminate the collision force with the help of elasticity, reduce the probability of damage to the rake tooth structure 206, and improve the service life.

[0025] In the present disclosure, Figure 3 and Figure 4As shown, a flow port 101 is opened on the right side of the rake head body 1, and the interior of the flow port 101 is connected to the interior of the rake head body 1, and a support assembly 102 is fixed to the upper right side of the rake head body 1 through a support plate; the support assembly 102 is rotatably connected to the top of the pushing assembly 103 to support the use of the pushing assembly 103, and the bottom end of the freely retractable pushing assembly 103 is rotatably connected to the connecting rod assembly 104, which can adaptively flip when retracting; the connecting rod assembly 104 is fixedly connected to the reinforcing assembly 105, and the reinforcing assembly 105 is welded and fixed to the top of the flip plate assembly 106 to generate a force to control the rotation of the flip plate assembly 106, and three connecting block assemblies 107 are fixed on the inner side of the flip plate assembly 106, and the connecting block assembly 107 is rotatably connected to the side of the rake head body 1, so that the flip plate assembly 106 can rotate freely around the connecting block assembly 107.

[0026] In the present disclosure, Figure 5 and Figure 6 As shown, the top of the inner structure 2 is provided with evenly arranged top grooves 201 to control the diversion of seawater or debris. The top grooves 201 are inclined structures. The bottom of the inner structure 2 is welded and fixed with evenly arranged connector structures 202 for connecting with the rake tooth structure 206. The bottom end of the connector structure 202 is an inclined structure for sliding contact with the top of the push plate structure 208. An inner groove 203 is provided above the front end of the connector structure 202. A through hole is provided through the connector structure 202. The interior of the inner groove 203 is connected to the interior of the through hole. The through hole and the interior of the rake tooth structure 206 are inserted through the through hole. There is a fixing rod 204, which connects the connector structure 202 and the rake tooth structure 206 together, and at the same time makes the rake tooth structure 206 slightly rotate around the fixing rod 204, and a groove is provided at the top of the fixing rod 204; a block structure 205 made of elastic metal material is fixed inside the inner groove 203, and the bottom end of the block structure 205 is embedded in the inside of the groove and limits the fixing rod 204, and a connecting groove 207 is provided at the top of the rake tooth structure 206, and the connector structure 202 is inserted into the connecting groove 207, and an inclined groove is provided on the side of the connecting groove 207, so as to facilitate the tilting of the block structure 205 by pulling the inclined groove.

[0027] The working principle of this embodiment is as follows: when it is necessary to dredge and suck mud from the seabed, the rake head body 1 can be controlled to be connected to the mud suction pipeline, and the rake head body 1 and the pipeline can be controlled to be placed on the seabed together, so that the bottom of the rake head body 1 contacts the seabed, and the rake tooth structure 206 is inserted into the seabed, and then the rake head body 1 is driven to move and displace. During the displacement process, the mud is sucked, and at the same time, the seawater and debris are discharged through the circulation port 101 to reduce the resistance. After passing through the circulation port 101, the waste pollutants in the debris contact with the inner rod assembly 108 and the hook teeth, so that the polluted waste is hooked, which is convenient for later cleaning and avoids polluting waste. Abandoned objects float in the sea water, causing secondary pollution. After the rake tooth structure 206 encounters a collision, the fixed rod 204 can be slightly rotated to force the push plate structure 208 to slide in contact with the bottom of the connecting head structure 202, and the collision force can be eliminated with the help of elasticity. If the rake tooth structure 206 is damaged, the block structure 205 can be directly pulled to tilt slightly and detach from the inside of the groove, and the fixed rod 204 can be pulled to move horizontally to release the connection with the rake tooth structure 206, and then the new rake tooth structure 206 can be controlled to be installed, and the fixed rod 204 can be reinstalled, so that the rake tooth structure 206 can be quickly and conveniently replaced.

[0028] In this article, there are a few points to note:

[0029] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0030] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0031] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A drag head for seabed dredging and mud suction, characterized in that: include: A rake head body (1); the left end of the rake head body (1) is connected to a suction tube, a flip plate assembly (106) is installed on the right side of the rake head body (1) through a flow port (101), a sealing plate made of rubber is provided at the bottom of the flip plate assembly (106), an evenly arranged inner rod assembly (108) is fixed at the bottom of the flip plate assembly (106), and evenly arranged hook teeth are provided inside the inner rod assembly (108) with an arc structure; an inner component structure (2); the inner component structure (2) is welded and fixed inside the rake head body (1), the bottom of the inner component structure (2) is rotatably connected to the rake tooth structure (206) through a connector structure (202), two push plate structures (208) are fixed above the rear end of the rake tooth structure (206), and the top of the push plate structure (208) made of elastic metal is a circular structure and contacts the bottom of the connector structure (202).

2. A drag head for seabed dredging and mud suction according to claim 1, characterized in that: The right side of the drag head body (1) is provided with a circulation port (101), the interior of the circulation port (101) is communicated with the interior of the drag head body (1), and a support assembly (102) is fixed above the right side of the drag head body (1) via a support plate.

3. A drag head for seabed dredging and mud suction according to claim 2, characterized in that: The support component (102) is rotatably connected to the top end of the pushing component (103), and the bottom end of the freely retractable pushing component (103) is rotatably connected to the connecting rod component (104).

4. A drag head for seabed dredging and mud suction according to claim 3, characterized in that: The connecting rod assembly (104) is fixedly connected to the reinforcing assembly (105), and the reinforcing assembly (105) is welded and fixed to the top of the flip plate assembly (106). Three connecting block assemblies (107) are fixed on the inner side of the flip plate assembly (106), and the connecting block assembly (107) is rotatably connected to the side of the rake head body (1).

5. A drag head for seabed dredging and mud suction according to claim 4, characterized in that: The top of the inner structure (2) is provided with evenly arranged top grooves (201), the top grooves (201) are an inclined structure, and the bottom of the inner structure (2) is welded and fixed with evenly arranged connecting head structures (202), the bottom end of which is an inclined structure.

6. A drag head for seabed dredging and mud suction according to claim 5, characterized in that: An inner groove (203) is provided above the front end of the connector structure (202), a through hole is provided through the connector structure (202), the interior of the inner groove (203) is connected to the interior of the through hole, a fixing rod (204) is inserted through the through hole and the interior of the rake tooth structure (206), and a groove is provided at the top end of the fixing rod (204).

7. A drag head for seabed dredging and mud suction according to claim 6, characterized in that: A block structure (205) made of elastic metal material is fixed inside the inner groove (203), the bottom end of the block structure (205) is embedded in the groove and limits the fixing rod (204), a connecting groove (207) is provided at the top end of the rake tooth structure (206), a connector structure (202) is inserted into the connecting groove (207), and an inclined groove is provided on the side of the connecting groove (207).