A bow anchor ball structure for a dredging vessel

By using a stainless steel anchor ball structure and a motor-driven support telescopic rod, the problems of tearing and corrosion of nylon rope anchor balls in harsh marine environments have been solved, enabling efficient installation and long service life of the anchor balls and reducing maintenance costs.

CN119348766BActive Publication Date: 2025-12-02CCCC GUANGZHOU DREDGING CO LTD +1
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Patent Information

Application Number
CN202411630803.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-12-02
Estimated Expiration
2044-11-15

AI Technical Summary

Technical Problem

Existing nylon rope anchor balls are prone to tearing and corrosion in harsh marine environments, leading to frequent replacements, high consumption, high costs, and safety hazards.

Method used

The stainless steel anchor ball structure, combined with a motor-driven support telescopic rod and a winding assembly, enables automatic lifting and limiting of the stainless steel anchor ball. Guided by a guide component, it rotates by wind power and has rust removed by a wire brush, reducing installation difficulty and corrosion risk.

Benefits of technology

It extends the anchor ball replacement and maintenance cycle, reduces installation costs and safety hazards, improves installation efficiency, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a bow anchor ball structure for a dredger, belonging to the field of anchor ball technology. The bow anchor ball structure for a dredger includes an installation plate installed at the bow. A support plate is fixed to the top of the installation plate, and a rotating rod is rotatably connected to the support plate. A supporting telescopic rod is fixed to the rotating rod. A first motor for driving the rotating rod to rotate is fixed to the support plate. An upper connecting plate and a lower connecting plate are respectively provided at the top and bottom of the supporting telescopic rod. A guide member is provided between the upper and lower connecting plates, and a stainless steel anchor ball is slidably connected to the guide member. A winding assembly for lifting the stainless steel anchor ball is provided on the installation plate. This invention, by replacing the nylon rope anchor ball with a stainless steel anchor ball, facilitates extending the anchor ball replacement and maintenance cycle, extending the anchor ball's service life, and reducing the anchor ball installation cost. Furthermore, by flipping the supporting telescopic rod and lowering its top end, the installation difficulty of the stainless steel anchor ball is reduced, and the installation efficiency of the anchor ball is improved.
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Description

Technical Field

[0001] This invention relates to the field of anchor ball technology, and more particularly to an anchor ball structure for the bow of a dredging vessel. Background Technology

[0002] When a ship is anchored, regulations require that an anchor ball be hung at the bow to indicate the ship's anchored status. Therefore, the anchor ball must be of reliable quality and durable.

[0003] The anchor balls used by the ship when it was anchored were made of nylon rope. At sea, there are often gale-force winds of level 7-8, and even gale-force winds of level 10-12 or higher during typhoons. The nylon rope anchor balls are easily torn and corroded by wind, sun and such harsh marine weather conditions. They are frequently damaged and need to be replaced, resulting in high consumption and high installation costs. In addition, each maintenance requires climbing to a height, which poses a great safety hazard. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art and to propose a bow anchor ball structure for dredging vessels.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bow anchor ball structure for a dredger includes an installation plate installed at the bow. A support plate is fixedly mounted on the top of the installation plate, and a rotating rod is rotatably connected to the support plate. A supporting telescopic rod is fixedly mounted on the rotating rod. A first motor for driving the rotating rod to rotate is fixedly mounted on the support plate. An upper connecting plate and a lower connecting plate are respectively provided at the top and bottom of the supporting telescopic rod. A guide member is provided between the upper and lower connecting plates, and a stainless steel anchor ball is slidably connected to the guide member. A winding assembly for lifting the stainless steel anchor ball is provided on the installation plate.

[0007] Preferably, the supporting telescopic rod includes a lower tube fixedly connected to the rotating rod, an upper rod slidably connected to the lower tube, and a first elastic element disposed between the upper rod and the lower tube. The upper connecting plate is fixedly connected to the upper rod, the lower connecting plate is fixedly connected to the lower tube, and a positioning component for fixing to the lower tube is disposed in the upper rod.

[0008] Preferably, the positioning component includes a movable groove formed at the bottom of the upper rod, a positioning block slidably connected in the movable groove, a second elastic element provided between the positioning block and the inner wall of the movable groove, and a positioning hole that cooperates with the positioning block formed on the inner wall of the lower tube.

[0009] Preferably, the mounting plate is fixedly provided with an ear plate, and a rotating shaft is rotatably connected to the ear plate. A driven gear and a drum are provided on the rotating shaft. A first pull rope is wound and connected to the drum. The end of the first pull rope away from the drum passes through the lower tube and the upper rod in sequence and is connected to the positioning block. A driving gear that meshes with the driven gear is provided on the rotating rod.

[0010] Preferably, the winding assembly includes a support fixed to the mounting plate, a second motor fixed to the support, an output shaft of the second motor connected to a winding rod rotating on the support, a second pull rope wound around the winding rod, and the end of the second pull rope away from the winding rod passing through the upper connecting plate and connected to a stainless steel anchor ball.

[0011] Preferably, the stainless steel anchor ball includes two circular plates and several stainless steel strips bent into an arc shape. The two ends of the stainless steel strips are respectively welded to the plane of the two circular plates. A reinforcing ring is provided between the several stainless steel strips, and a connecting member that is slidably connected to the guide is provided on the outside of the reinforcing ring.

[0012] Preferably, the guide includes lifting rings respectively disposed on the upper connecting plate and the lower connecting plate, and a positioning rope is disposed between the upper and lower lifting rings.

[0013] Preferably, the connector includes a collar that is slidably connected to the reinforcing ring. The outer wall of the collar is provided with a connecting frame that cooperates with the positioning rope. The inner wall of the connecting frame is fixed with an arc-shaped limiting block that moves against the positioning rope. The end of the connecting frame away from the collar is provided with an opening for the positioning rope to enter. Two elastic locking blocks with inclined surfaces are provided at the opening.

[0014] Preferably, the inner wall of the collar is provided with an annular groove, the outer wall of the reinforcing ring is provided with a limiting seat that cooperates with the annular groove, a connecting pipe sleeved on the outer side of the second pull rope is fixed on the circular plate on the upper side of the stainless steel anchor ball, an air guide plate is provided on the outer side of the connecting pipe, and a rotating block connected to the second pull rope is rotatably provided on the circular plate.

[0015] Preferably, an outer arc-shaped rod is fixed on the outside of the collar, and the outer arc-shaped rod is connected to an inner arc-shaped rod placed inside the stainless steel anchor ball via a connecting rod. Both the outer arc-shaped rod and the inner arc-shaped rod are provided with several rotating cylinders, and the rotating cylinders are provided with wire brushes that move against the stainless steel anchor ball.

[0016] Compared with the prior art, the present invention provides a bow anchor ball structure for dredging vessels, which has the following beneficial effects:

[0017] 1. The bow anchor ball structure of this dredger, by replacing the nylon rope anchor ball with a stainless steel anchor ball, facilitates the extension of the anchor ball replacement and maintenance cycle, extends the service life of the anchor ball, and reduces the anchor ball installation cost. Furthermore, by driving the first motor to rotate the support telescopic rod, the top of the support telescopic rod is moved down, thereby reducing the difficulty of installing the stainless steel anchor ball and improving the installation efficiency of the anchor ball.

[0018] 2. The bow anchor ball structure of this dredger reduces the overall length of the support telescopic rod by simultaneously pulling the first rope down on the upper rod body when the control support telescopic rod is flipped, causing the upper rod body to retract into the lower tube. This reduces the range of operation and movement for workers, further reduces the difficulty of installing the stainless steel anchor ball, and effectively improves the installation efficiency of the anchor ball.

[0019] 3. The bow anchor ball structure of this dredger, by setting a guide component between the upper and lower connecting plates, facilitates the guidance and limiting of the raising and lowering of the stainless steel anchor ball, avoids the stainless steel anchor ball from swinging randomly, and prevents it from colliding and damaging other structures on the bow, thus reducing the ship's maintenance costs.

[0020] 4. The bow anchor ball structure of this dredger allows the stainless steel anchor ball to rotate relative to the guide component, enabling it to rotate automatically under wind force even when its position is restricted. This facilitates the rapid dislodging of seawater carried by wind and waves on the outside of the stainless steel anchor ball under centrifugal force. During this process, rust on the stainless steel anchor ball can be scraped off, effectively delaying corrosion and extending the replacement and maintenance cycle of the stainless steel anchor ball. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A partially enlarged structural diagram of section A in the middle;

[0023] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0024] Figure 4 For the present invention Figure 3 A partially enlarged structural diagram of section B in the middle;

[0025] Figure 5 This is a schematic diagram of the external structure of the stainless steel anchor ball of the present invention;

[0026] Figure 6 For the present invention Figure 5 A partially enlarged structural diagram of section C in the middle;

[0027] Figure 7 This is a schematic diagram of the external structure of the collar of the present invention.

[0028] In the diagram: 1. Mounting plate; 2. Support plate; 201. Rotating rod; 2011. Drive gear; 202. First motor; 3. Support telescopic rod; 301. Lower tube body; 3011. Positioning hole; 302. Upper rod body; 303. First elastic element; 4. Upper connecting plate; 5. Lower connecting plate; 6. Guide component; 7. Stainless steel anchor ball; 701. Circular plate; 7011. Rotating block; 702. Stainless steel strip; 703. Reinforcing ring; 7031. Limiting seat; 8. Movable groove; 801. Positioning block; 802. Second elastic element 9. Sexing element; 901. Ear plate; 902. Rotating shaft; 903. Driven gear; 903. Drum; 9031. First pull rope; 10. Support; 11. Second motor; 111. Winding rod; 112. Second pull rope; 12. Lifting ring; 121. Positioning rope; 13. Loop; 131. Annular groove; 14. Connecting frame; 141. Arc-shaped limit block; 142. Elastic locking block; 15. Connecting pipe; 151. Air guide plate; 16. Outer arc-shaped rod; 161. Inner arc-shaped rod; 162. Rotating drum; 163. Wire brush. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Example: Refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 A bow anchor ball structure for a dredging vessel includes an installation plate 1 installed at the bow. A support plate 2 is fixedly mounted on the top of the installation plate 1. A rotating rod 201 is rotatably connected to the support plate 2. A supporting telescopic rod 3 is fixedly mounted on the rotating rod 201. A first motor 202 for driving the rotating rod 201 to rotate is fixedly mounted on the support plate 2. An upper connecting plate 4 and a lower connecting plate 5 are respectively provided at the top and bottom of the supporting telescopic rod 3. A guide member 6 is provided between the upper connecting plate 4 and the lower connecting plate 5. A stainless steel anchor ball 7 is slidably connected to the guide member 6. A winding assembly for lifting the stainless steel anchor ball 7 is provided on the installation plate 1.

[0033] Specifically, during the installation of the stainless steel anchor ball 7, the operator controls the first motor 202 to operate. The output shaft of the first motor 202 drives the rotating rod 201 to rotate, which in turn drives the support telescopic rod 3 to flip, causing the top of the support telescopic rod 3 to move downward. This reduces the difficulty of installing the stainless steel anchor ball 7 and improves the installation efficiency. Furthermore, by replacing the nylon rope anchor ball with the stainless steel anchor ball 7, the anchor ball replacement and maintenance cycle can be extended, the service life of the anchor ball can be extended, and the installation cost of the anchor ball can be reduced. When the ship needs to anchor, the operation of the winding assembly is controlled, causing the winding assembly to move the stainless steel anchor ball 7 upward along the guide member 6. This facilitates the guidance and limiting of the lifting and lowering of the stainless steel anchor ball 7, preventing the stainless steel anchor ball 7 from swaying randomly and causing it to collide and be damaged with other structures on the bow, thus reducing the ship's maintenance costs.

[0034] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As a preferred technical solution of the present invention, the support telescopic rod 3 includes a lower tube 301 fixedly connected to the rotating rod 201, an upper rod 302 slidably connected inside the lower tube 301, and a first elastic element 303 disposed between the upper rod 302 and the lower tube 301. The upper connecting plate 4 is fixedly connected to the upper rod 302, and the lower connecting plate 5 is fixedly connected to the lower tube 301. A positioning component for fixing to the lower tube 301 is disposed inside the upper rod 302.

[0035] Furthermore, the positioning component includes a movable groove 8 opened at the bottom of the upper rod 302, a positioning block 801 slidably connected in the movable groove 8, a second elastic element 802 provided between the positioning block 801 and the inner wall of the movable groove 8, and a positioning hole 3011 that cooperates with the positioning block 801 opened on the inner wall of the lower tube 301.

[0036] Furthermore, an ear plate 9 is fixed on the mounting plate 1, and a rotating shaft 901 is rotatably connected to the ear plate 9. A driven gear 902 and a drum 903 are provided on the rotating shaft 901. A first pull rope 9031 is wound and connected to the drum 903. The end of the first pull rope 9031 away from the drum 903 passes through the lower tube 301 and the upper rod 302 in sequence and is connected to the positioning block 801. A driving gear 2011 that meshes with the driven gear 902 is provided on the rotating rod 201.

[0037] Specifically, the operator controls the first motor 202 to operate. The output shaft of the first motor 202 drives the rotating rod 201 to rotate. The rotating rod 201 causes the supporting telescopic rod 3 to flip, causing the top of the supporting telescopic rod 3 to move downward. During the rotation of the rotating rod 201, the outer drive gear 2011 meshes with the driven gear 902, causing the driven gear 902 to drive the drum 903 to wind up the first pull rope 9031. The first pull rope 9031 is a steel wire rope. The first pull rope 9031 pulls the positioning block 801, thus positioning it. When block 801 is subjected to force, it moves inward into the movable groove 8 and moves out of the positioning hole 3011, releasing the movement restriction between the upper rod body 302 and the lower tube body 301. As the first pull rope 9031 is continuously wound up, the first pull rope 9031 pulls the upper rod body 302 down through the positioning block 801, causing the upper rod body 302 to retract into the lower tube body 301, thereby reducing the overall length of the support telescopic rod 3, which facilitates the reduction of the operator's operation and movement range, further reduces the installation difficulty of the stainless steel anchor ball 7, and effectively improves the installation efficiency of the anchor ball.

[0038] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As a preferred technical solution of the present invention, the winding assembly includes a support 10 fixed on the mounting plate 1, a second motor 11 fixed on the support 10, the output shaft of the second motor 11 is connected to a winding rod 111 rotating on the support 10, a second pull rope 112 is wound and connected to the winding rod 111, and the end of the second pull rope 112 away from the winding rod 111 passes through the upper connecting plate 4 and is connected to the stainless steel anchor ball 7.

[0039] Furthermore, the stainless steel anchor ball 7 includes two circular plates 701 and several stainless steel strips 702 bent into an arc shape. The two ends of the stainless steel strips 702 are respectively welded to the plane of the two circular plates 701. A reinforcing ring 703 is provided between the several stainless steel strips 702. A connecting member that is slidably connected to the guide member 6 is provided on the outside of the reinforcing ring 703.

[0040] Furthermore, the guide member 6 includes lifting rings 12 respectively disposed on the upper connecting plate 4 and the lower connecting plate 5, and a positioning rope 121 is disposed between the upper and lower lifting rings 12.

[0041] Specifically, when the ship needs to anchor, the control mechanism activates the winding assembly. The second motor 11 drives the winding rod 111 to wind up the second pull rope 112. The second pull rope 112 applies tension to the stainless steel anchor ball 7, causing the stainless steel anchor ball 7 to move upward along the positioning rope 121. This facilitates the guidance and limiting of the raising and lowering of the stainless steel anchor ball 7, preventing it from swaying randomly and colliding with other structures on the bow, thus reducing ship maintenance costs. Furthermore, by replacing the nylon rope anchor ball with the stainless steel anchor ball 7, the anchor ball replacement and maintenance cycle can be extended, increasing the anchor ball's service life and reducing installation costs. It should be noted that both the second pull rope 112 and the positioning rope 121 are made of steel wire rope.

[0042] Reference Figure 5 and Figure 6 As a preferred technical solution of the present invention, the connector includes a collar 13 that is slidably connected to the reinforcing ring 703. The outer wall of the collar 13 is provided with a connecting frame 14 that cooperates with the positioning rope 121. The inner wall of the connecting frame 14 is fixed with an arc-shaped limiting block 141 that moves against the positioning rope 121. The end of the connecting frame 14 away from the collar 13 is provided with an opening for the positioning rope 121 to enter. Two elastic locking blocks 142 with inclined surfaces are provided at the opening.

[0043] Specifically, when the stainless steel anchor ball 7 is connected to the guide member 6, the positioning rope 121 squeezes the inclined surface of the elastic locking block 142, causing the positioning rope 121 to automatically enter the connecting frame 14. The arc-shaped limiting block 141 in the connecting frame 14 further restricts the positioning rope 121, preventing the gap between the positioning rope 121 and the connecting frame 14 from being too large and causing the stainless steel anchor ball 7 to shake randomly.

[0044] Reference Figure 5 , Figure 6 and Figure 7 As a preferred technical solution of the present invention, the inner sidewall of the collar 13 is provided with an annular groove 131, the outer sidewall of the reinforcing ring 703 is provided with a limiting seat 7031 that cooperates with the annular groove 131, the circular plate 701 on the upper side of the stainless steel anchor ball 7 is fixedly provided with a connecting pipe 15 sleeved on the outer side of the second pull rope 112, the outer side of the connecting pipe 15 is provided with a guide vane 151, and a rotating block 7011 connected to the second pull rope 112 is rotatably provided on the circular plate 701.

[0045] Furthermore, an outer arc-shaped rod 16 is fixed on the outside of the collar 13. The outer arc-shaped rod 16 is connected to an inner arc-shaped rod 161 placed inside the stainless steel anchor ball 7 via a connecting rod. Both the outer arc-shaped rod 16 and the inner arc-shaped rod 161 are provided with several rotating cylinders 162. A wire brush 163 is provided on the rotating cylinder 162 to move against the stainless steel anchor ball 7.

[0046] Specifically, a wind guide plate 151 is provided on the outside of the connecting pipe 15, so that the wind guide plate 151 rotates under the wind force when the ship is sailing. The wind guide plate 151 drives the stainless steel anchor ball 7 to rotate through the connecting pipe 15. The stainless steel anchor ball 7 rotates relative to the collar 13 connected to the guide member 6, which facilitates the rapid dislodging of seawater that is often carried by wind and waves on the outside of the stainless steel anchor ball 7 under the action of centrifugal force. During this period, the wire brush 163 provided on the outer arc rod 16 and the inner arc rod 161 can scrape off the rust on the inside and outside of the stainless steel anchor ball 7, effectively delaying the corrosion of the stainless steel anchor ball 7 and extending the replacement and maintenance cycle of the stainless steel anchor ball 7.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A bow anchor ball structure for a dredging vessel, comprising an mounting plate (1) installed at the bow, characterized in that, The top of the mounting plate (1) is fixedly provided with a support plate (2), a rotating rod (201) is rotatably connected to the support plate (2), a supporting telescopic rod (3) is fixedly provided on the rotating rod (201), a first motor (202) for driving the rotating rod (201) to rotate is fixedly provided on the support plate (2), an upper connecting plate (4) and a lower connecting plate (5) are respectively provided at the top and bottom of the supporting telescopic rod (3), a guide member (6) is provided between the upper connecting plate (4) and the lower connecting plate (5), a stainless steel anchor ball (7) is slidably connected on the guide member (6), and a winding assembly for lifting the stainless steel anchor ball (7) is provided on the mounting plate (1).

2. The bow anchor ball structure for a dredger according to claim 1, characterized in that, The supporting telescopic rod (3) includes a lower tube body (301) fixedly connected to the rotating rod (201), an upper rod body (302) slidably connected inside the lower tube body (301), and a first elastic element (303) disposed between the upper rod body (302) and the lower tube body (301). The upper connecting plate (4) is fixedly connected to the upper rod body (302), and the lower connecting plate (5) is fixedly connected to the lower tube body (301). The upper rod body (302) is provided with a positioning component for fixing to the lower tube body (301).

3. The bow anchor ball structure for a dredging vessel according to claim 2, characterized in that, The positioning component includes a movable groove (8) at the bottom of the upper rod (302), a positioning block (801) is slidably connected in the movable groove (8), a second elastic element (802) is provided between the positioning block (801) and the inner wall of the movable groove (8), and a positioning hole (3011) is provided on the inner wall of the lower tube (301) to cooperate with the positioning block (801).

4. The bow anchor ball structure for a dredger according to claim 3, characterized in that, The mounting plate (1) is fixedly provided with an ear plate (9), and a rotating shaft (901) is rotatably connected to the ear plate (9). A driven gear (902) and a drum (903) are provided on the rotating shaft (901). A first pull rope (9031) is wound and connected on the drum (903). The end of the first pull rope (9031) away from the drum (903) passes through the lower tube body (301) and the upper rod body (302) in sequence and is connected to the positioning block (801). A driving gear (2011) that meshes with the driven gear (902) is provided on the rotating rod (201).

5. The bow anchor ball structure for a dredging vessel according to claim 4, characterized in that, The winding assembly includes a support (10) fixed on the mounting plate (1), a second motor (11) fixed on the support (10), the output shaft of the second motor (11) is connected to a winding rod (111) rotating on the support (10), a second pull rope (112) is wound around the winding rod (111), and the end of the second pull rope (112) away from the winding rod (111) passes through the upper connecting plate (4) and is connected to the stainless steel anchor ball (7).

6. The bow anchor ball structure for a dredging vessel according to claim 5, characterized in that, The stainless steel anchor ball (7) includes two circular plates (701) and several stainless steel strips (702) bent into an arc shape. The two ends of the stainless steel strips (702) are respectively welded to the plane of the two circular plates (701). A reinforcing ring (703) is provided between the several stainless steel strips (702). A connecting member that is slidably connected to the guide member (6) is provided on the outside of the reinforcing ring (703).

7. The bow anchor ball structure for a dredging vessel according to claim 6, characterized in that, The guide member (6) includes lifting rings (12) respectively disposed on the upper connecting plate (4) and the lower connecting plate (5), and a positioning rope (121) is disposed between the upper and lower lifting rings (12).

8. The bow anchor ball structure for a dredging vessel according to claim 7, characterized in that, The connector includes a collar (13) that is slidably connected to the reinforcing ring (703). The outer wall of the collar (13) is provided with a connecting frame (14) that cooperates with the positioning rope (121). The inner wall of the connecting frame (14) is fixed with an arc-shaped limiting block (141) that moves against the positioning rope (121). The end of the connecting frame (14) away from the collar (13) is provided with an opening for the positioning rope (121) to enter. Two elastic locking blocks (142) with inclined surfaces are provided at the opening.

9. The bow anchor ball structure for a dredging vessel according to claim 8, characterized in that, The inner wall of the collar (13) is provided with an annular groove (131), and the outer wall of the reinforcing ring (703) is provided with a limiting seat (7031) that cooperates with the annular groove (131). A connecting pipe (15) sleeved on the outer side of the second pull rope (112) is fixed on the circular plate (701) on the upper side of the stainless steel anchor ball (7). A guide vane (151) is provided on the outer side of the connecting pipe (15), and a rotating block (7011) connected to the second pull rope (112) is rotatably provided on the circular plate (701).

10. The bow anchor ball structure for a dredger according to claim 9, characterized in that, An outer arc-shaped rod (16) is fixed on the outside of the collar (13). The outer arc-shaped rod (16) is connected to an inner arc-shaped rod (161) placed inside the stainless steel anchor ball (7) by a connecting rod. Both the outer arc-shaped rod (16) and the inner arc-shaped rod (161) are provided with several rotating cylinders (162). The rotating cylinders (162) are provided with wire brushes (163) that move against the stainless steel anchor ball (7).

Citation Information

Patent Citations

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