A water weed cutting boat

Abstract

The utility model relates to a kind of waterweeds cutting boat, belong to river cleaning technical field.The waterweeds cutting boat includes hull and cutting assembly on hull;Cutting assembly includes cutting motor, connecting rod and several quick-release parts, the top end of connecting rod is drivenly cooperated with cutting motor and bottom end is provided with cutting knife, connecting rod is equipped with connecting bearing;Quick-release part includes swing arm and snap ring, two ends of swing arm are respectively hinged with hull and snap ring, and several snap rings are enclosed into annular fixed ring, any two adjacent snap rings are buckled, and connecting bearing is rotatably supported in fixed ring.The waterweeds cutting boat provided by the utility model can be suspended on water surface, thereby supporting cutting assembly, quick-release part can fix connecting rod, and connecting rod can be driven to rotate by cutting motor, thereby enabling cutting assembly to cut waterweeds, and multiple snap rings can quickly lock or unlock connecting rod by buckling, without using tools, easy to operate.

Description

Technical Field

[0001] This utility model belongs to the field of river cleaning technology, specifically relating to a weed cutting boat. Background Technology

[0002] Aquatic weed cutters are mainly used to cut and clean underwater weeds in rivers or lakes to maintain water quality.

[0003] Referring to the invention patent application CN202411797511.0, entitled "A Device for Clearing Aquatic Plants in Urban Landscape Rivers and Lakes," aquatic plant cutting boat generally comprises a hull, a drive assembly, and a rotating rod assembly. The drive assembly is mounted on the hull, and the rotating rod assembly is connected to the drive assembly. The rotating rod assembly typically includes a connecting rod and a cutting blade. To cut aquatic plants in deeper waters, the connecting rod is usually quite long. Therefore, the rotating rod assembly and the drive assembly or the hull are often separate structures, installed and used on-site.

[0004] However, the existing method of connecting the swivel assembly to the drive assembly or hull is usually to use threaded fasteners, which is cumbersome, time-consuming and labor-intensive. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a weed cutting boat that can be quickly assembled, saving time and effectively improving work efficiency.

[0006] The technical solution of this utility model is as follows: This utility model provides a weed cutting boat, including a hull and a cutting assembly located on the hull; the cutting assembly includes a cutting motor, a connecting rod and several quick-release parts, the top end of the connecting rod is driven by the cutting motor and the bottom end is provided with a cutting blade, and a connecting bearing is sleeved on the connecting rod; the quick-release parts include a rotating arm and a buckle, the two ends of the rotating arm are respectively hinged to the hull and the buckle, the several buckles form a ring-shaped fixed ring, any two adjacent buckles are fastened together, and the connecting bearing is rotatably supported within the fixed ring.

[0007] As an optional solution, the inner side of the fixing ring is provided with an embedding groove, and the outer ring of the connecting bearing is embedded in the embedding groove.

[0008] As an optional solution, the buckle includes a ring body and a fastener, the ring body is provided with a fastening part, the fastener is hinged to the ring body, and the fastener and the fastening part of two adjacent buckles are hooked together.

[0009] As an optional solution, the top end of the connecting rod is provided with a first connecting seat, and the output end of the cutting motor is provided with a second connecting seat. The adjacent sides of the first connecting seat and the second connecting seat are respectively provided with a driving groove and a driving protrusion.

[0010] As an optional solution, the top of the rotating arm is provided with a support arm, and the support arm is provided with a plurality of balls; when the fixing ring covers the connecting bearing, the balls roll into contact with the bottom surface of the first connecting seat.

[0011] As an alternative, the rotating arm is tilted towards the center in the top-to-bottom direction.

[0012] Alternatively, the connecting rod can be telescopic to change its length.

[0013] As an optional solution, the cutting assembly also includes a fixing seat, the hull is provided with a vertically penetrating fixing groove, the fixing seat is embedded in the fixing groove and the two can be separated, the cutting motor is mounted on the fixing seat, and the top end of the rotating arm is hinged to the fixing seat.

[0014] As an optional solution, the hull also includes a locking block and a locking spring. The bottom end of the fixing groove is provided with a support block and the top end is provided with a locking hole. The locking block is slidably disposed in the locking hole, and the locking spring causes the locking block to have a tendency to extend outward.

[0015] Alternatively, the top surface of the locking block can be a slope.

[0016] As an optional feature, the rotating rod assembly also includes a protective cover, with the cutting blade located inside the protective cover.

[0017] As an optional solution, the protective cover includes a connecting frame and several baffles. The connecting frame is located above the cutting blade, and the several baffles are arranged vertically and distributed around the connecting frame.

[0018] As an optional solution, the connecting rod includes a return spring and two rods, the two rods being hinged together, and the return spring causing the two rods to tend to be coaxially aligned; when the resistance at the bottom of the cutting assembly exceeds a preset resistance threshold, the two rods can rotate relative to each other.

[0019] The beneficial effects of this utility model are: The aquatic plant cutting boat provided by this utility model can float on the water surface to support the cutting component. The quick-release part can fix the connecting rod and the connecting rod can be driven to rotate by the cutting motor, so that the cutting component can cut aquatic plants. The multiple buckles can quickly lock or unlock the connecting rod through the fastening method. The operation is simple and convenient, saving time and effort. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The above and other objects, features, and advantages of this utility model will become clearer through the drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not intentionally drawn to scale to actual dimensions; the focus is on illustrating the main idea of ​​this utility model.

[0021] Figure 1 Schematic diagram of the structure of the weed cutter provided in the first embodiment of this utility model Figure 1 ; Figure 2 Schematic diagram of the structure of the weed cutter provided in the first embodiment of this utility model Figure 2 ; Figure 3 A schematic diagram of the hull structure of the weed cutter provided in the first embodiment of this utility model. Figure 1 ; Figure 4 A schematic diagram of the hull structure of the weed cutter provided in the first embodiment of this utility model. Figure 2 ; Figure 5 Schematic diagram of the drive assembly of the weed cutter boat provided in the first embodiment of this utility model Figure 1 ; Figure 6 Schematic diagram of the drive assembly of the weed cutter boat provided in the first embodiment of this utility model Figure 2 ; Figure 7 A schematic diagram of the drive assembly (with part of the fixing seat removed) of the weed cutter provided in the first embodiment of this utility model; Figure 8 for Figure 7 A magnified view of part A; Figure 9 A schematic diagram of the fixing ring of the weed cutting boat provided in the first embodiment of this utility model; Figure 10 for Figure 9 AA section view; Figure 11 Schematic diagram of the rotating rod assembly of the weed cutter boat provided in the first embodiment of this utility model Figure 1 ; Figure 12Schematic diagram of the rotating rod assembly of the weed cutter boat provided in the first embodiment of this utility model Figure 2 ; Figure 13 A schematic diagram of a partial structure (rotating arm, buckle, etc.) of the weed cutting boat provided in the second embodiment of this utility model; Figure 14 A schematic diagram of the structure of the weed cutter provided in the third embodiment of this utility model.

[0022] Icons: 10-Seaweed cutting boat; 11-Hull; 12-Drive assembly; 16-Rotating rod assembly; 110-Fixing groove; 111-Support block; 112-Locking block; 120-Fixing seat; 121-Cutting motor; 122-Quick release piece; 130-First connecting seat; 131-Drive protrusion; 140-Rotating arm; 141-Support arm; 142-Ball bearing; 150-Snap ring; 151-Ring body; 152-Fastener; 160-Connecting rod; 161-Cutting blade; 162-Connecting bearing; 163-Second connecting seat; 164-Drive groove; 170-Protective cover; 171-Connecting frame; 172-Stop bar. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0027] First embodiment: Please refer to Figure 1 , Figure 2As shown, the first embodiment of this utility model provides a waterweed cutting boat 10, which is mainly used to clean waterweeds in rivers or lakes, thereby maintaining the cleanliness of the water in rivers or lakes.

[0028] First, it should be noted that the directions such as "up" and "down" in this embodiment refer to the orientation when the weed cutter 10 is placed on the water surface. The orientation terms may change depending on the placement method of the weed cutter 10.

[0029] The weed cutting boat 10 mainly consists of a hull 11 and a cutting assembly, with the cutting assembly installed on the hull 11.

[0030] The primary function of the hull 11 is to enable the weed cutter 10 to float on the water surface. The shape and structure of the hull 11 are not limited and can adopt existing technologies. For example, the cross-section of the hull 11 can be rectangular, triangular, irregular, or other shapes. The hull 11 can be a powered vessel, meaning it can have its own power mechanism, such as a motor or diesel engine. Alternatively, it can be a non-powered hull 11, which has a simpler structure, requiring only that it floats. Even a floating cylindrical structure is acceptable. The type and style of the motor are not limited, including stepper motors, reversible motors, unidirectional motors, and other types.

[0031] Preferably, in order to control the working area and forward direction of the weed cutter 10, in this embodiment, please combine Figure 3 , Figure 4 As shown, the hull 11 may include the main body and the propeller. The number and position of the propeller can be set as needed. For example, there may be two propellers located on both sides behind the main body. The propeller can be driven by a power motor. The output shaft of the power motor is connected to the shaft of the propeller. The connection method is not limited.

[0032] Furthermore, the movement control method of the hull 11 is not limited. For example, it can be remotely controlled by a remote controller or automatically planned by a built-in program. These control methods are all existing technologies.

[0033] For example, if the hull 11 is remotely controlled via a remote controller, then the hull 11 is equipped with a first signal receiver and a first signal transmitter, while the remote controller is equipped with a second signal receiver and a second signal transmitter. Operators can send command signals by pressing buttons on the remote controller. Upon receiving the command signals from the second signal transmitter, the first signal receiver can control the speed and direction of the power motor, thereby changing the propeller's speed or direction. Furthermore, the first signal transmitter can also transmit the status of the hull 11 or the cutting components back to the second signal receiver, allowing operators to monitor the status of the weed cutter 10 in real time.

[0034] The cutting assembly is located on hull 11 and is mainly used for cutting and cleaning underwater aquatic plants.

[0035] The connection method between the cutting component and the hull 11 is not limited, such as by threaded fasteners, welding, etc. In this embodiment, the cutting component and the hull 11 are connected by a detachable connection.

[0036] Specifically, the cutting assembly includes a drive assembly 12 and a rotating rod assembly 16, with the drive assembly 12 used to drive the rotating rod assembly 16 to rotate.

[0037] Please combine Figures 5-7 As shown, the drive assembly 12 includes a mounting base 120, a cutting motor 121, and several quick-release components 122. The mounting base 120 is used to connect to the hull 11, the cutting motor 121 is mounted on the mounting base 120, and the quick-release components 122 are mounted on the bottom end of the mounting base 120 and used to fix the rotating rod assembly 16. Of course, in some embodiments, the drive assembly 12 may not include the mounting base 120. In this case, the cutting motor 121 is mounted on the hull 11, and the quick-release components 122 are connected to the hull 11.

[0038] The connection method between the fixed seat 120 and the hull 11 is not limited, such as welding, snap-fit, or connection by threaded fasteners. In this embodiment, the following scheme can be adopted, but is not limited to: the hull 11 is provided with a fixing groove 110, the fixed seat 120 is embedded in the fixing groove 110 and the two can be separated.

[0039] The shape of the fixing groove 110 is not limited, such as a rectangular, circular, or irregular cross-section. The fixing groove 110 runs through the hull 11 in the vertical direction. A support block 111 is provided at the bottom of the fixing groove 110. After the fixing seat 120 is embedded in the fixing groove 110, the fixing seat 120 is supported on the support block 111. The fixing seat 120 and the fixing groove 110 can be fixed by other structures, or they can be supported on the support block 111 by the weight of the cutting component itself.

[0040] Preferably, the hull 11 also includes a locking block 112 and a locking spring.

[0041] The top of the fixing groove 110 is provided with a locking hole. The structure and shape of the locking hole are not limited. For example, the locking hole can be a through hole, a blind hole, etc., and the shape of the locking hole can be circular, rectangular, irregular, etc. The locking block 112 is slidably disposed in the locking hole. The shapes of the locking hole and the locking block 112 match, and the locking block 112 can retract into the locking hole or extend out of the locking hole. It should be noted that the locking block 112 generally cannot detach from the locking hole. This can be achieved by setting a limiting mechanism or designing the locking block 112 as a stepped structure, etc. This structure is a relatively conventional prior art and will not be described in detail here.

[0042] A locking spring (not shown in the figure) causes the locking block 112 to tend to extend outward. The type of locking spring is not limited and can be a compression spring, tension spring, torsion spring, leaf spring, etc. In this embodiment, a compression spring is used. The locking spring is located inside the locking hole, with one end abutting the bottom of the locking hole and the other end abutting the locking block 112. When the locking block 112 is compressed, the locking spring can be compressed and shortened; when the locking block 112 is not compressed, the locking spring can push the locking block 112 to return to its original position.

[0043] Furthermore, to facilitate the insertion of the fixing seat 120 from above the fixing groove 110, the top surface of the locking block 112 can be designed as a slope. When the fixing seat 120 needs to be inserted into the fixing groove 110, simply ensure that the fixing seat 120 remains stationary, push the fixing seat 120 downwards, and the bottom end of the fixing seat 120 will abut against the slope, thereby causing the locking block 112 to retract into the locking hole. After the fixing seat 120 is installed in place, the locking spring will push out the locking block 112, and the locking block 112 will lock the fixing seat 120, preventing the fixing seat 120 from detaching from the fixing groove 110. When the fixing seat 120 needs to be removed from the fixing groove 110, the operator needs to manually press the locking block 112 to retract it into the locking hole, and then remove the fixing seat 120. After the operator releases the pressure, the locking spring will push the locking block 112 out.

[0044] The model and style of the cutting motor 121 are not limited, such as stepper motors, forward and reverse motors, unidirectional motors, and other types. The cutting motor 121 can be controlled remotely via a remote control or through a program set inside the weed cutter 10, which will not be elaborated here.

[0045] The number of quick-release parts 122 is not limited, such as two, three, four, etc. In this embodiment, the number of quick-release parts 122 is four.

[0046] The quick-release component 122 mainly consists of a rotating arm 140 and a retaining ring 150, and its function is to quickly fix the cutting assembly.

[0047] The top end of the rotating arm 140 is hinged to the fixed base 120 and the bottom end is hinged to the buckle 150, that is, the rotating arm 140 can rotate relative to the fixed base 120 and the buckle 150 can rotate relative to the rotating arm 140. The rotation center line of the rotating arm 140 and the rotation center line of the buckle 150 can be parallel or not parallel, preferably they are parallel and horizontally arranged.

[0048] Several buckles 150 are arranged in a ring to form a fixed ring. The shape of the fixed ring is not limited and can be a circular ring, a square ring, etc. A connecting bearing 162 is sleeved on the connecting rod 160, and the connecting bearing 162 is rotatably supported in the fixed ring. An embedding groove is provided on the inner side of the fixed ring, and the outer ring of the connecting bearing 162 is embedded in the embedding groove.

[0049] Any two adjacent buckles 150 can be fastened together. The style and fastening method of the buckles 150 are unrestricted, and the following schemes can be used, but are not limited to: Please combine... Figures 8-10 As shown, the buckle 150 includes a ring body 151 and a fastener 152. The ring body 151 is provided with a fastening part, and the fastener 152 is hinged to the ring body 151. The fasteners 152 and fastening parts of two adjacent buckles 150 are hooked together. The fastener 152 is provided with a hook-shaped part, and the fastening part is provided with a fastening hole or a fastening protrusion. The hook-shaped part can hook onto the fastening hole or fastening protrusion.

[0050] In other embodiments, adjacent buckles 150 may also be fastened using other existing structural fastening techniques.

[0051] The rotating rod assembly 16 is connected to the cutting motor 121 for transmission, and its function is to cut aquatic plants. Please refer to... Figure 11 , Figure 12 As shown, the rotating rod assembly 16 includes a connecting rod 160 and a cutting blade 161, with the cutting blade 161 located at the bottom end of the connecting rod 160.

[0052] The connecting rod 160 is a rod-shaped or tubular structure, such as a round rod, square rod, round tube, square tube, etc., and the connecting rod 160 extends vertically.

[0053] The length of the connecting rod 160 can be fixed or adjustable, preferably adjustable. Specifically, it can be implemented in, but is not limited to, the following ways: The connecting rod 160 includes at least two rods, the number of which is not limited. Taking two rods as an example, one rod slides through the other rod. The two rods can be locked together by bolts. For example, the first rod has a fixing hole, and the bolt passes through the fixing hole with a threaded fit. The bolt can extend into the first rod and abut against the second rod. When the bolt is tightened, the friction between the bolt and the second rod locks the two rods together. When the bolt is loosened, the first and second rods can be pulled relative to each other, thereby changing the length of the connecting rod 160.

[0054] The connecting rod 160 is telescopic, thereby changing its length so that the cutting blade 161 can be at different heights, enabling the weed cutting boat 10 to cut weeds at different depths.

[0055] The top end of the connecting rod 160 is in drive engagement with the cutting motor 121. The connection method is not limited; for example, it can be achieved through a spline connection or a plug-in connection. In this embodiment, the top end of the connecting rod 160 is provided with a first connecting seat 130, and the output end of the cutting motor 121 is provided with a second connecting seat 163. Adjacent sides of the first connecting seat 130 and the second connecting seat 163 are respectively provided with a driving groove 164 and a driving protrusion 131. That is, the first connecting seat 130 is provided with a driving groove 164 and the second connecting seat 163 is provided with a driving protrusion 131, or the first connecting seat 130 is provided with a driving protrusion 131 and the second connecting seat 163 is provided with a driving groove 164. The driving protrusion 131 can be embedded within the driving groove 164, and the cutting motor 121 can drive the connecting rod 160 to rotate through the driving groove 164 and the driving protrusion 131. This structure allows the first connecting seat 130 and the second connecting seat 163 to be fixed together without any other means of fixing. The rotating rod assembly 16 can be supported by the fixing ring and the connecting bearing 162, and the cutting motor 121 can drive the rotating rod assembly 16 to rotate. This makes installation and disassembly more convenient, saving time and effort.

[0056] After the retaining ring secures the connecting bearing 162, the rotating arms 140 are inclined towards the center in the top-to-bottom direction, meaning that the area occupied by the top of the multiple rotating arms 140 is larger than the area occupied by the bottom. This arrangement allows the rotating rod assembly 16 to be smoothly inserted into or pulled out from among the multiple rotating arms 140.

[0057] The cutting blade 161 can be of any style, including blade-shaped, serrated, or rope-shaped blades, allowing operators to choose according to their needs. The connection method between the cutting blade 161 and the connecting rod 160 is also unrestricted, including welding, plugging, or connection via threaded fasteners.

[0058] The method of using the weed cutter 10 provided in this embodiment is as follows: Remove the hull 11, drive assembly 12 and lever assembly 16; Install the drive assembly 12 to the hull 11. Specifically, align the mounting base 120 with the mounting groove 110 and press it down. The mounting base 120 can abut against the top slope of the locking block 112 and squeeze the locking block 112, thereby causing the locking block 112 to retract into the locking hole. The locking spring is compressed until the mounting base 120 is fully embedded in the mounting groove 110. Without external force, the locking spring pushes the locking block 112 out and abuts against the mounting base 120, so that the mounting base 120 and the mounting groove 110 are locked. The first connecting seat 130 is docked with the second connecting seat 163, and the driving protrusion 131 is embedded in the driving groove 164. Rotate the rotating arm 140 and the buckle 150 to splice the buckle 150 into a fixed ring and fit the connecting bearing 162, and fasten any two adjacent buckles 150 together to lock the fixed ring. Place the weed cutter 10 on the water surface and manually or remotely control the weed cutter 10 to move and cut weeds.

[0059] The above steps can be added, removed, modified, or their order adjusted as needed. For example, if the drive component 12 and the hull 11 are a single unit, then there is no need to assemble the hull 11 and the drive component 12.

[0060] Second Embodiment: The second embodiment of this utility model provides a weed cutter 10, which is a further improvement on the first embodiment. The main improvement lies in the structure of the swing arm 140. Other parts not mentioned can be referred to the first embodiment or the prior art.

[0061] Please refer to Figure 13 As shown, a support arm 141 is provided at the top of the rotating arm 140. The connection method between the rotating arm 140 and the support arm 141 is not limited, such as integral molding, fixed connection or detachable connection. It should be noted that the support arm 141 can be provided on all rotating arms 140, or only on some rotating arms 140.

[0062] The shape of the support arm 141 is not limited, such as rod-shaped, plate-shaped, block-shaped, etc. The support arm 141 is provided with a number of balls 142, and the number of balls 142 is not limited, such as one, two, three, etc.

[0063] When the rotating arm 140 rotates until the fixed ring fits the connecting bearing 162, the ball 142 rolls into contact with the bottom surface of the first connecting seat 130.

[0064] This configuration allows the drive assembly 12 to apply external support force to the rotating rod assembly 16, reducing the pressure at the connecting bearing 162 and making the rotating rod assembly 16 less likely to fall off.

[0065] Third embodiment: Please refer to Figure 14 As shown, the third embodiment of this utility model provides a weed cutter 10, which is a further improvement on the first or second embodiment. The main improvements are in the protective structure for the cutting blade 161. Other parts not mentioned can be referred to the first or second embodiment or the prior art.

[0066] The rotating rod assembly 16 also includes a protective cover 170, within which the cutting blade 161 is located.

[0067] The protective cover 170 includes a connecting frame 171 and several baffles 172. The number of baffles 172 is not limited, but is generally three or more, such as three, five, or ten.

[0068] The connecting frame 171 is located above the cutting blade 161. The structure of the connecting frame 171 is not limited, such as plate-shaped or radial, and its main function is to support the baffle 172.

[0069] Multiple baffles 172 are vertically arranged and distributed around the connecting frame 171, extending downwards from the connecting frame 171. The baffles 172 generally need to have a certain strength, and their material is not limited, such as metal, hard plastic, or hard rubber. The cutting blade 161 is located within the cutting area enclosed by the multiple baffles 172. When the weed cutting boat 10 does not encounter any obstacles, weeds can enter the cutting area through the gaps between the baffles 172, and the cutting blade 161 can cut the weeds. When the weed cutting boat 10 encounters an obstacle, the baffles 172 first contact the obstacle and can push it away. If the obstacle cannot be pushed away, the baffles 172 can prevent the cutting blade 161 from contacting the obstacle, effectively protecting the cutting blade 161.

[0070] In addition, in some embodiments, other methods can be used to prevent damage to the cutting blade 161. For example, the connecting rod 160 includes a return spring and two rods, which are hinged together. The return spring tends to make the two rods coaxial. When the resistance at the bottom of the cutting assembly exceeds a preset resistance threshold, the two rods can rotate relative to each other. Of course, the above two solutions can exist independently or simultaneously.

[0071] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A weed cutter boat, characterized in that, The device includes a hull and a cutting assembly located on the hull. The cutting assembly includes a cutting motor, a connecting rod, and several quick-release parts. The top end of the connecting rod is driven by the cutting motor, and the bottom end is provided with a cutting blade. A connecting bearing is sleeved on the connecting rod. The quick-release parts include a rotating arm and a buckle. The two ends of the rotating arm are respectively hinged to the hull and the buckle. Several buckles form a ring-shaped fixed ring. Any two adjacent buckles are fastened together. The connecting bearing is rotatably supported within the fixed ring.

2. The weed cutter boat according to claim 1, characterized in that, The buckle includes a ring body and a fastener. The ring body is provided with a fastening part, and the fastener is hinged to the ring body. The fasteners and fastening parts of two adjacent buckles are hooked together.

3. The weed cutter boat according to claim 1, characterized in that, The top end of the connecting rod is provided with a first connecting seat, and the output end of the cutting motor is provided with a second connecting seat. The adjacent sides of the first connecting seat and the second connecting seat are respectively provided with a driving groove and a driving protrusion.

4. The weed cutter boat according to claim 3, characterized in that, The top of the rotating arm is provided with a support arm, and the support arm is provided with a plurality of balls; when the fixing ring covers the connecting bearing, the balls roll into contact with the bottom surface of the first connecting seat.

5. The weed cutter boat according to claim 1, characterized in that, The rotating arm is tilted towards the center in the top-to-bottom direction.

6. The weed cutter boat according to claim 1, characterized in that, The connecting rod is telescopic to change its length.

7. The weed cutter boat according to claim 1, characterized in that, The cutting assembly also includes a fixing seat, the hull is provided with a vertically penetrating fixing groove, the fixing seat is embedded in the fixing groove and the two can be separated, the cutting motor is mounted on the fixing seat, and the top end of the rotating arm is hinged to the fixing seat.

8. The weed cutter boat according to claim 7, characterized in that, The hull also includes a locking block and a locking spring. The bottom end of the fixing groove is provided with a support block and the top end is provided with a locking hole. The locking block is slidably disposed in the locking hole, and the locking spring causes the locking block to have a tendency to extend outward.

9. The weed cutter boat according to claim 1, characterized in that, The cutting assembly also includes a protective cover, and the cutting blade is located inside the protective cover.

10. The weed cutter according to claim 9, characterized in that, The protective cover includes a connecting frame and several baffles. The connecting frame is located above the cutting blade, and the several baffles are arranged vertically and distributed around the connecting frame.

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