Lifting appliance for seabed sand excavation

Abstract

The invention discloses a lifting appliance for seabed sand digging and relates to the technical field of lifting appliances, the lifting appliance comprises a bottom frame and an adjusting assembly, a straight rod is connected to the middle of the bottom frame, a sliding groove is formed in the surface of the straight rod, a movable assembly is arranged in the sliding groove, and an expansion assembly is arranged on the outer surface of the movable assembly; the adjusting assembly is connected to the inner wall of the movable assembly, the movable assembly comprises a connecting shaft, a supporting arm, a coupling shaft, an auxiliary arm, a rotating shaft and a mechanical arm, and the supporting arm is connected to the outer surface of the connecting shaft. According to the lifting appliance, the multiple assemblies are arranged in a matched mode, the expansion mode is adopted, the stability of the lifting appliance is improved, the stability of equipment operation is guaranteed through multiple positioning in the same way, the reinforcing assemblies are combined for opening and locking at the bottom, then the connection rigidity of the equipment is reinforced, and by means of the sliding expansion type design, the stability of the lifting appliance is improved. When the equipment is lifted, the heavier the equipment is, the stability of the lifting appliance can be improved, and a user can use the lifting appliance conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of slings, in particular to a sling for seabed dredging. Background Art

[0002] A dredger is a special machine for mining sand in rivers. It is a floating device that floats the entire device. It is equipped with excavation devices, screening devices, lifting devices, and conveying devices. The bucket is driven by a power device to load materials. Stones are screened and then conveyed by a conveyor belt. Sand is conveyed to a designated location by a conveyor belt. The dredger needs to dig sand and gravel from the seabed and use a sling to pull out the bucket to complete the dredging work.

[0003] The seabed dredging slings on the market are generally connected to the hopper. The bolt connection is not only troublesome to assemble, but also affects the construction efficiency. The bolt connection is time-consuming and laborious to disassemble. When the hopper needs to be replaced, a lot of time is wasted, which affects the processing accuracy. Summary of the invention

[0004] The object of the present invention is to provide a sling for seabed dredging to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A sling for seabed dredging, comprising a base frame and an adjusting component, a straight rod is connected to the middle part of the base frame, and a slide groove is arranged on the surface of the straight rod, a movable component is arranged inside the slide groove, and an expansion component is arranged on the outer surface of the movable component, the adjusting component is connected to the inner wall of the movable component, the movable component comprises a connecting shaft, a support arm, a coupling, an auxiliary arm, a rotating shaft and a mechanical arm, and the support arm is connected to the outer surface of the connecting shaft, the coupling is connected to the bottom of the connecting shaft, and the auxiliary arm is arranged on the outer surface of the coupling, the rotating shaft is connected to the bottom of the coupling, and the mechanical arm is connected to the outer surface of the rotating shaft, and a sliding seat is arranged on the outside of the movable component.

[0006] Furthermore, the expansion assembly includes an expansion frame, a top frame and anti-slip grooves, and the outer surface of the expansion frame is connected to the top frame by screws, and the outer surface of the top frame is provided with the anti-slip grooves.

[0007] Furthermore, the adjustment component includes a sliding sleeve, a slider, a limiting frame and anti-slip rubber, and the slider is arranged on the inner wall of the sliding sleeve, the limiting frame is connected to the bottom of the sliding sleeve, and the anti-slip rubber is installed on the top of the limiting frame.

[0008] Furthermore, the adjustment assembly also includes a hanging ring and a hydraulic telescopic rod, and the hanging ring is fixedly connected to the top of the sliding sleeve, and the top of the sliding sleeve is connected to the hydraulic telescopic rod.

[0009] Furthermore, a reinforcement component is installed at the bottom of the base frame, and the vertical center of the reinforcement component coincides with the vertical center of the base frame.

[0010] Furthermore, the reinforcement assembly includes a placement rod, a connecting piece, a micro telescopic rod and a placement frame, and the surface of the placement rod is connected to the connecting piece, the micro telescopic rod is arranged inside the connecting piece, and the output end of the micro telescopic rod is connected to the placement frame.

[0011] Furthermore, the reinforcement assembly also includes a bracket seat, a wear-resistant seat and an anti-slip pad, and the bracket seat is connected to the inner wall of the mounting frame, the wear-resistant seat is arranged on the outer surface of the bracket seat, and the anti-slip pad is connected to the outer surface of the wear-resistant seat.

[0012] Furthermore, anti-skid components are provided on both sides of the expansion frame, and the anti-skid components are distributed equidistantly in the longitudinal direction, and the anti-skid components are distributed symmetrically about the center position of the expansion frame.

[0013] Furthermore, the anti-slip assembly includes a torsion spring, an anti-slip frame, an external shell and a bending arm, and the anti-slip frame is arranged on the outer surface of the torsion spring, the external shell is arranged on the outer surface of the anti-slip frame, and the bending arm is elastically connected to the left side of the external shell.

[0014] Furthermore, the anti-skid component also includes a connecting block and an anti-skid rubber pad, and the connecting block is connected to the outer surface of the bending arm, and the anti-skid rubber pad is provided on the outer surface of the connecting block.

[0015] The present invention provides a seabed dredging sling, which has the following beneficial effects: the seabed dredging sling, by adopting a mutually coordinated arrangement between a plurality of components and utilizing an expansion method, not only improves the stability of the sling, but also ensures the stability of the equipment operation by utilizing multiple fixations, and is combined with a reinforcement component to be propped open and locked at the bottom, thereby reinforcing the connection rigidity of the equipment and utilizing a sliding expansion design, so that when hoisting the equipment, the heavier the equipment, the more stable the sling can be, and the user is convenient to use; 1. The present invention is configured by mutual cooperation between the movable assembly and the straight rod. The expansion frame is connected to the rotating shaft and the straight rod by means of a connecting shaft and a coupling shaft, and the expansion frame is distributed in a circular shape around the outer surface of the straight rod. When in use, the movable connection between the expansion frame and the straight rod enables the expansion frame to be movably extended to rest against the inner wall of the cylindrical workpiece, thereby achieving the purpose of limiting the position, and the greater the gravity, the tighter the connection, thereby improving the stability of use.

[0016] The cam is provided with a sliding block on the inner wall of the sliding block, so that the sliding block can slide in the sliding groove on the surface of the straight rod, thereby improving the smoothness of the sliding. The limit frame is clamped on the bottom of the sliding seat to improve the firmness of the connection. The anti-skid rubber on the upper surface of the limit frame can improve the friction coefficient between the sliding seat and the sliding seat, thereby further improving the working stability. The top of the sliding block is connected with a hanging ring and a hydraulic telescopic rod, so that the height of the sliding block and the sliding seat on the surface of the straight rod can be controlled under the drive of the hydraulic telescopic rod, thereby completing the control of the expansion angle of the expansion frame and achieving the function of fixing the equipment. The outer surface of the expansion frame is provided with a detachable top frame, which is convenient for the later replacement and maintenance of worn parts. At the same time, the anti-skid pattern can improve the friction coefficient between the sling and the equipment, thereby further improving the firmness of the connection.

[0017] 3. The present invention is arranged through the mutual cooperation between the reinforcement component and the base frame. The reinforcement component is connected to the bottom of the base frame, and is connected with a placement frame by elastically rotating at the bottom of the placement rod. The opening and closing of the placement frame is controlled by a micro-telescopic rod. During installation, the placement frame can be squeezed on the inner wall of the equipment to make it rotate elastically. After the connection, the placement frame elastically resets and opens, and is driven by the micro-telescopic rod to press against the inner wall of the placement frame to enhance the firmness of the connection. The bracket seat, wear-resistant seat and anti-skid pad on the inner wall of the placement frame are used to contact and connect with the equipment, thereby increasing the friction coefficient between the two and further enhancing the firmness of the connection.

[0018] 4. The present invention adopts the mutual coordination setting between the expansion frame and the anti-skid component. The anti-skid component is longitudinally equidistantly distributed on both sides of the surface of the expansion frame. The setting of the torsion spring and the anti-skid frame is used to make the bending arm rotate when entering the inner wall of the equipment, so that the hanging device is not affected when entering the inner wall of the equipment. When the hanging device is lifted during installation, the bending arm is in real time against the inner wall of the equipment to complete the reinforcement. The outer surface of the bending arm is also provided with a connecting block and an anti-skid rubber pad, so that it can contact the inner wall of the equipment to achieve the purpose of re-reinforcement, thereby realizing the stability of the equipment operation.

[0019] 5. The present invention improves the stability of the sling by combining a plurality of limit reinforcement components, and utilizes a combination of expansion and bottom propping to greatly improve the installation efficiency between the sling and the hopper. Different from traditional bolt fixing, the sling can be installed and disassembled quickly and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a seabed dredging device according to the present invention; Figure 2 The invention relates to a sling for seabed dredging. Figure 1The enlarged structural diagram at A in the middle; Figure 3 The invention relates to a sling for seabed dredging. Figure 1 The enlarged structural diagram at B in the middle; Figure 4 This is a schematic diagram of the structure of an adjustment component of a seabed dredging sling according to the present invention; Figure 5 This is a schematic diagram of the structure of a reinforcement component of a seabed dredging sling according to the present invention; Figure 6 It is a schematic diagram of the side structure of an expansion assembly of a seabed dredging device according to the present invention; Figure 7 This is a schematic structural diagram of an anti-skid assembly of a seabed dredging device according to the present invention; Figure 8 The present invention is a schematic diagram of the three-dimensional structure of a connecting block of a seabed dredging lifting device.

[0021] In the figure: 1, bottom frame; 2, straight rod; 3, slide; 4, movable component; 401, connecting shaft; 402, support arm; 403, coupling; 404, auxiliary arm; 405, rotating shaft; 406, mechanical arm; 5, expansion component; 501, expansion frame; 502, top frame; 503, anti-slip pattern; 6, adjustment component; 601, sliding sleeve; 602, slider; 603, limit frame; 604, anti-slip rubber; 60 5. Hanging ring; 606. Hydraulic telescopic rod; 7. Reinforcement assembly; 701. Placement rod; 702. Connector; 703. Micro telescopic rod; 704. Placement frame; 705. Bracket seat; 706. Wear-resistant seat; 707. Anti-skid pad; 8. Anti-skid assembly; 801. Torsion spring; 802. Anti-skid frame; 803. External shell; 804. Bending arm; 805. Connecting block; 806. Anti-skid rubber pad; 9. Sliding seat. DETAILED DESCRIPTION

[0022] See also Figure 1-8 The present invention provides a technical solution: a seabed dredging lifting device, comprising a base frame 1 and an adjusting component 6, a straight rod 2 is connected to the middle of the base frame 1, and a slide groove 3 is arranged on the surface of the straight rod 2, a movable component 4 is arranged inside the slide groove 3, and an expansion component 5 is arranged on the outer surface of the movable component 4, the adjusting component 6 is connected to the inner wall of the movable component 4, the movable component 4 comprises a connecting shaft 401, a support arm 402, a coupling shaft 403, an auxiliary arm 404, a rotating shaft 405 and a mechanical arm 406, and the outer surface of the connecting shaft 401 is connected to the support arm 402, the coupling shaft 403 is connected to the lower part of the connecting shaft 401, and the outer surface of the coupling shaft 403 is provided with an auxiliary arm 404, the rotating shaft 405 is connected to the lower part of the coupling shaft 403, and the outer surface of the rotating shaft 405 is connected to the mechanical arm 406, and a sliding seat 9 is arranged on the outside of the movable component 4; See also Figure 1-3The movable component 4 includes a connecting shaft 401, a support arm 402, a coupling shaft 403, an auxiliary arm 404, a rotating shaft 405 and a mechanical arm 406, and the outer surface of the connecting shaft 401 is connected with the support arm 402, the coupling shaft 403 is connected below the connecting shaft 401, and the outer surface of the coupling shaft 403 is provided with the auxiliary arm 404, the rotating shaft 405 is connected below the coupling shaft 403, and the outer surface of the rotating shaft 405 is connected with the mechanical arm 406; The specific operation is as follows: through the mutual cooperation between the movable assembly 4 and the straight rod 2, the expansion frame 501 is connected with the rotating shaft 405 and the straight rod 2 by using the connecting shaft 401 and the coupling shaft 403, and the expansion frame 501 is distributed in a circular shape around the outer surface of the straight rod 2. When in use, the movable connection between the expansion frame 501 and the straight rod 2 enables the expansion frame 501 to be movably extended to the inner wall of the cylindrical workpiece, thereby achieving the purpose of limiting, and the connection is tighter when the gravity is greater, thereby improving the stability of use; See also Figure 1 and Figure 4 , the expansion component 5 includes an expansion frame 501, a top frame 502 and an anti-slip pattern 503, and the outer surface of the expansion frame 501 is connected to the top frame 502 by screws, and the outer surface of the top frame 502 is provided with an anti-slip pattern 503, the adjustment component 6 includes a sliding sleeve 601, a slider 602, a limit frame 603 and an anti-slip rubber 604, and the inner wall of the sliding sleeve 601 is provided with a slider 602, the limit frame 603 is connected to the bottom of the sliding sleeve 601, and the top of the limit frame 603 is installed with an anti-slip rubber 604, the adjustment component 6 also includes a hanging ring 605 and a hydraulic telescopic rod 606, and the hanging ring 605 is fixedly connected to the top of the sliding sleeve 601, and the top of the sliding sleeve 601 is connected to the hydraulic telescopic rod 606; The specific operation is as follows: through the mutual cooperation between the adjustment component 6 and the sliding seat 9, the sliding sleeve 601 in the adjustment component 6 is connected to the inner wall of the sliding seat 9, and the sliding sleeve 601 is provided with a slider 602 on the inner wall so that it can be embedded in the sliding groove 3 on the surface of the straight rod 2, so that the sliding sleeve 601 can slide up and down along the surface of the straight rod 2, thereby improving the smoothness of the sliding, and the limiting frame 603 is used to be stuck at the bottom of the sliding seat 9 to improve the firmness of the connection, and the anti-slip rubber 604 on the upper surface of the limiting frame 603 can improve the friction coefficient between the sliding seat 9, further In order to improve the stability of the lifting work, the top of the sliding sleeve 601 is connected with a hanging ring 605 and a hydraulic telescopic rod 606, so that the height of the sliding sleeve 601 and the sliding seat 9 on the surface of the straight rod 2 can be controlled under the drive of the hydraulic telescopic rod 606, so as to complete the control of the expansion angle of the expansion frame 501 and achieve the function of fixing the equipment. The outer surface of the expansion frame 501 is provided with a detachable top frame 502, which is convenient for the replacement and maintenance of the worn parts in the later stage. At the same time, the anti-slip pattern 503 can increase the friction coefficient between the sling and the equipment, and further improve the firmness of the connection; See also Figure 1 and Figure 5 , a reinforcement component 7 is installed at the bottom of the base frame 1, and the vertical center of the reinforcement component 7 coincides with the vertical center of the base frame 1, the reinforcement component 7 includes a placement rod 701, a connecting piece 702, a micro telescopic rod 703 and a placement frame 704, and the surface of the placement rod 701 is connected with the connecting piece 702, the micro telescopic rod 703 is arranged inside the connecting piece 702, and the output end of the micro telescopic rod 703 is connected to the placement frame 704, the reinforcement component 7 also includes a bracket seat 705, a wear-resistant seat 706 and an anti-skid pad 707, and the bracket seat 705 is connected to the inner wall of the placement frame 704, the outer surface of the bracket seat 705 is provided with a wear-resistant seat 706, and the outer surface of the wear-resistant seat 706 is connected with an anti-skid pad 707; The specific operation is as follows: through the mutual cooperation between the reinforcement component 7 and the base frame 1, the reinforcement component 7 is connected to the bottom of the base frame 1, and is connected with a placement frame 704 by elastic rotation at the bottom of the placement rod 701, and the micro-telescopic rod 703 is used to control the opening and closing of the placement frame 704. During installation, the placement frame 704 can be squeezed on the inner wall of the equipment to make it rotate elastically, and after the connection, the placement frame 704 is elastically reset and stretched open, and is driven by the micro-telescopic rod 703 to press against the inner wall of the placement frame 704 to enhance the firmness of the connection, and the bracket seat 705, wear-resistant seat 706 and anti-slip pad 707 on the inner wall of the placement frame 704 are used to contact and connect with the equipment, thereby increasing the friction coefficient between the two and further improving the firmness of the connection.

[0023] See also Figure 6 , Figure 7 and Figure 8 , anti-skid components 8 are arranged on both sides of the expansion frame 501, and the anti-skid components 8 are distributed in a longitudinally equidistant manner, and the anti-skid components 8 are symmetrically distributed about the center position of the expansion frame 501, and the anti-skid components 8 include a torsion spring 801, an anti-skid frame 802, an external shell 803 and a bending arm 804, and the outer surface of the torsion spring 801 is provided with an anti-skid frame 802, the outer surface of the anti-skid frame 802 is provided with an external shell 803, and the left side of the external shell 803 is elastically connected to the bending arm 804, the anti-skid component 8 also includes a connecting block 805 and an anti-skid rubber pad 806, and the connecting block 805 is connected to the outer surface of the bending arm 804, and the outer surface of the connecting block 805 is provided with an anti-skid rubber pad 806; The specific operation is as follows: through the mutual coordination between the expansion frame 501 and the anti-slip component 8, the anti-slip component 8 is longitudinally equidistantly distributed on both sides of the surface of the expansion frame 501, and the torsion spring 801 and the anti-slip frame 802 are set, so that the bending arm 804 is forced to rotate when entering the inner wall of the equipment, so that the sling is not affected when entering the inner wall of the equipment, and when the sling is lifted during installation, the bending arm 804 is in real time against the inner wall of the equipment to complete the reinforcement function. The outer surface of the bending arm 804 is also provided with a connecting block 805 and an anti-slip rubber pad 806, so that it can contact the inner wall of the equipment to achieve the purpose of re-reinforcement, thereby realizing the stability of the equipment operation.

[0024] In summary, when using the seabed dredging sling, first, the device is placed inside the cylindrical device. During the entry process, the reinforcement component 7 is set, and the reinforcement component 7 is connected to the bottom of the base frame 1. The placement frame 704 is connected by elastic rotation at the bottom of the placement rod 701, and the opening and closing of the placement frame 704 is controlled by the micro telescopic rod 703. During installation, the placement frame 704 can be squeezed on the inner wall of the device to make it rotate elastically, and after the connection, the placement frame 704 is elastically reset and stretched, and is driven by the micro telescopic rod 703 to press against the inner wall of the placement frame 704 to enhance the firmness of the connection, and the bracket seat 705, wear-resistant seat 706 and anti-slip pad 707 on the inner wall of the placement frame 704 are used to connect with the device. The expansion frame 501 is connected to the rotating shaft 405 and the straight rod 2 by the connection shaft 401 and the coupling shaft 403, and the expansion frame 501 is distributed in a circular shape around the outer surface of the straight rod 2. When in use, the active connection between the expansion frame 501 and the straight rod 2 enables the expansion frame 501 to be movably extended and pressed against the inner wall of the cylindrical workpiece, thereby achieving the purpose of limiting the position, and the connection is tighter when the gravity is greater, and the setting of the adjustment component 6 is utilized. The sliding sleeve 601 in the adjustment component 6 is connected to the inner wall of the sliding seat 9, and the inner wall of the sliding sleeve 601 is provided with a slider 602 so that it can be embedded in the sliding groove 3 on the surface of the straight rod 2, so that the sliding The sleeve 601 can slide up and down along the surface of the straight rod 2 to improve the smoothness of the sliding, and the limit frame 603 is used to clamp the bottom of the sliding seat 9 to improve the firmness of the connection, and the anti-skid rubber 604 on the upper surface of the limit frame 603 can increase the friction coefficient with the sliding seat 9, further improving the stability of the work. The top of the sliding sleeve 601 is connected with a hanging ring 605 and a hydraulic telescopic rod 606, so that the height of the sliding sleeve 601 and the sliding seat 9 on the surface of the straight rod 2 can be controlled under the drive of the hydraulic telescopic rod 606, so as to complete the control of the expansion angle of the expansion frame 501 and achieve the function of fixing the equipment. The outer surface of the expansion frame 501 is provided with a detachable top frame 502, which is convenient for the later repair of the worn parts. Replacement and maintenance of parts, at the same time, the anti-skid pattern 503 can improve the friction coefficient between the hanger and the equipment. Finally, the anti-skid component 8 is arranged, and the anti-skid component 8 is longitudinally equidistantly distributed on both sides of the surface of the expansion frame 501. The torsion spring 801 and the anti-skid frame 802 are arranged so that the bending arm 804 is forced to rotate when entering the inner wall of the equipment, so that the hanger is not affected when entering the inner wall of the equipment. When the hanger is lifted during installation, the bending arm 804 is in real time against the inner wall of the equipment to complete the reinforcement. The outer surface of the bending arm 804 is also provided with a connecting block 805 and an anti-skid rubber pad 806, so that it can contact with the inner wall of the equipment to achieve the purpose of re-reinforcement, thereby realizing the stability of the equipment operation.

[0025] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.

Claims

1. A sling for seabed dredging, characterized in that: The invention comprises a base frame (1) and an adjustment component (6), wherein a straight rod (2) is connected to the middle of the base frame (1), and a slide groove (3) is arranged on the surface of the straight rod (2), a movable component (4) is arranged inside the slide groove (3), and an expansion component (5) is arranged on the outer surface of the movable component (4), the adjustment component (6) is connected to the inner wall of the movable component (4), and the movable component (4) comprises a connecting shaft (401), a support arm (402), a coupling shaft (403), an auxiliary arm (404), a rotating shaft (405), a rotating shaft (406), a rotating shaft (407), a rotating shaft (408), a rotating shaft (409), a rotating shaft (410), a rotating shaft (411), a rotating shaft (412), a rotating shaft (413), a rotating shaft (414), a rotating shaft (415), a rotating shaft (416), a rotating shaft (417), a rotating shaft (418), a rotating shaft (419), a rotating shaft (420), a rotating shaft (421), a rotating shaft (422), a rotating shaft (423), a rotating shaft (424), a rotating shaft (425), a rotating shaft (426), a rotating shaft (427), a rotating shaft (428), a rotating shaft (429), a rotating shaft (430), a rotating shaft (431), a rotating shaft (432), a rotating shaft (433), a rotating shaft (434), a rotating shaft (435), a rotating shaft (436), a rotating shaft (437), a rotating shaft (438), a rotating shaft (439), a rotating shaft (444), a rotating shaft (445), a rotating shaft (446), a rotating shaft (447), a rotating shaft (448), a rotating shaft (449), a rotating shaft (450), a rotating shaft (451), a rotating shaft (4 The connecting shaft (401) is provided with a support arm (402), the coupling shaft (403) is connected below the connecting shaft (401), and the auxiliary arm (404) is provided on the outer surface of the coupling shaft (403), the rotating shaft (405) is connected below the coupling shaft (403), and the mechanical arm (406) is connected on the outer surface of the rotating shaft (405), and a sliding seat (9) is provided on the outside of the movable component (4).

2. A seabed dredging lifting device according to claim 1, characterized in that: The expansion assembly (5) comprises an expansion frame (501), a top frame (502) and anti-slip grooves (503), and the outer surface of the expansion frame (501) is connected to the top frame (502) via screws, and the outer surface of the top frame (502) is provided with the anti-slip grooves (503).

3. A seabed dredging lifting device according to claim 1, characterized in that: The adjustment component (6) comprises a sliding sleeve (601), a sliding block (602), a limiting frame (603) and an anti-slip rubber (604), wherein the sliding block (602) is arranged on the inner wall of the sliding sleeve (601), the limiting frame (603) is connected to the bottom of the sliding sleeve (601), and the anti-slip rubber (604) is installed on the top of the limiting frame (603).

4. A seabed dredging lifting device according to claim 3, characterized in that: The adjustment assembly (6) further comprises a hanging ring (605) and a hydraulic telescopic rod (606), wherein the hanging ring (605) is fixedly connected to the top of the sliding sleeve (601), and the top of the sliding sleeve (601) is connected to the hydraulic telescopic rod (606).

5. The seabed dredging lifting device according to claim 1, characterized in that: A reinforcement component (7) is installed at the bottom of the base frame (1), and the vertical center of the reinforcement component (7) coincides with the vertical center of the base frame (1).

6. A seabed dredging lifting device according to claim 1, characterized in that: The reinforcement assembly (7) comprises a placement rod (701), a connecting piece (702), a micro telescopic rod (703) and a placement frame (704); the surface of the placement rod (701) is connected to the connecting piece (702); the micro telescopic rod (703) is arranged inside the connecting piece (702); and the output end of the micro telescopic rod (703) is connected to the placement frame (704).

7. A seabed dredging lifting device according to claim 6, characterized in that: The reinforcement assembly (7) further comprises a bracket seat (705), a wear-resistant seat (706) and an anti-skid pad (707), wherein the bracket seat (705) is connected to the inner wall of the mounting frame (704), the wear-resistant seat (706) is arranged on the outer surface of the bracket seat (705), and the anti-skid pad (707) is connected to the outer surface of the wear-resistant seat (706).

8. The seabed dredging lifting device according to claim 1, characterized in that: Anti-skid components (8) are arranged on both sides of the expansion frame (501), and the anti-skid components (8) are distributed equidistantly in the longitudinal direction, and the anti-skid components (8) are distributed symmetrically about the center position of the expansion frame (501).

9. A seabed dredging lifting device according to claim 8, characterized in that: The anti-slip assembly (8) comprises a torsion spring (801), an anti-slip frame (802), an external shell (803) and a bending arm (804); the anti-slip frame (802) is arranged on the outer surface of the torsion spring (801); the external shell (803) is arranged on the outer surface of the anti-slip frame (802); and the bending arm (804) is elastically connected to the left side of the external shell (803).

10. A seabed dredging lifting device according to claim 9, characterized in that: The anti-skid assembly (8) further comprises a connecting block (805) and an anti-skid rubber pad (806), wherein the connecting block (805) is connected to the outer surface of the bending arm (804), and the anti-skid rubber pad (806) is provided on the outer surface of the connecting block (805).

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