Weeding device of weeding boat

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Through the combined design of the rotating knife and the positioning knife, the staggered setting and the use of passive blades and buffer springs, the problem of low efficiency of the weed boat when aquatic grass is accumulated is solved, and efficient aquatic grass cutting effect is achieved.

CN223168726UActive Publication Date: 2025-08-01HUBEI HENGRONG MACHINERY CO LTD

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Patent Information

Application Number: CN202422351804.8
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-09-26
Publication Date: 2025-08-01
Estimated Expiration: 2034-09-26

AI Technical Summary

Technical Problem

When the water and grass are piled up in existing weed boats, the front and rear positions of the rotating triath blades on the bow are flush, which is easy to push the water and grass to run, affecting the weeding efficiency.

Method used

The combination design of rotating knife and positioning knife is adopted, and the rotating knife and the mounting seat are arranged staggered. The positioning knife includes a passive blade, which is connected by a buffer spring. The rotating knife and the passive blade are used to shear aquatic plants. The gap between the rotating knife and the passive blade is adjustable to avoid damage to hard objects, and the aquatic plants are inserted one after another in time.

Benefits of technology

Improve the efficiency of weeding, prevent aquatic plants from being pushed and run away, and ensure that the rotating knife can effectively cut aquatic plants, especially when aquatic plants accumulate, it does not affect normal operations.

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Abstract

The utility model discloses a weeding device of a weeding boat, which comprises a transmission shaft arranged at the front end of a boat body and a rotary cutter fixedly arranged on the transmission shaft, the surface of the transmission shaft is movably sleeved with at least two mounting seats fixedly arranged at the front end of the boat body, and the mounting seats comprise standard seats and lengthened seats. The two adjacent rotary cutters are arranged in a front-back staggered mode through the standard bases and the lengthened bases, and positioning cutters are installed between the installation bases and the rotary cutters. The rotary cutters rotate at a high speed to cut aquatic plants and are matched with the positioning cutters and the driven blades to shear the aquatic plants, when the rotary cutters shear hard objects, the driven blades are extruded in the circumferential direction to rotate around the transmission shaft in a small range, and the hard objects can conveniently penetrate through the gaps; the rotary blades can be conveniently inserted into aquatic plants accumulated on the water surface in sequence in time, the aquatic plants are prevented from being accumulated together, the rotary blades cannot be inserted into the aquatic plants, and the aquatic plants are pushed by the weeding boat to run, so that the weeding efficiency is improved.

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Description

Technical Field

[0001] The utility model relates to the technical field of weeding boats, in particular to a weeding device for a weeding boat. Background Technique

[0002] A simple weeding boat is a lake cleaning boat that cuts the waterweeds floating on the water surface and does not have a conveying function. The small weeding boat is suitable for operating in small rivers and scenic spots. It is propelled by a tail propeller, has a fast turning speed, only requires one person to operate, and all actions can be easily completed on the driving console, with simple operation.

[0003] In the prior art, for a weeding boat that cuts waterweeds by the high-speed rotation of a three-blade knife at the bow, when cutting waterweeds while traveling on the water surface, when encountering a situation where the waterweeds on the water surface are piled up thickly and abundantly, several three-blade knives with the same front and rear positions are not easy to insert into the waterweeds and are prone to pushing the waterweeds away, affecting the normal weeding efficiency. Content of the Utility Model

[0004] Aiming at the deficiencies existing in the prior art, the utility model provides a weeding device for a weeding boat, which is used to solve the problem that the three-blade knives at the bow of the weeding boat in the prior art are flush with each other in the front and rear positions and are prone to pushing the waterweeds away when the waterweeds are piled up thickly, affecting the normal weeding efficiency.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] A weeding device for a weeding boat includes a transmission shaft arranged at the front end of the hull and a rotary knife fixedly installed on the transmission shaft. The surface of the transmission shaft is movably sleeved with a mounting seat fixedly installed at the front end of the hull. There are at least two mounting seats, including a standard seat and an extended seat. The number of rotary knives is the same as that of the mounting seats, and adjacent rotary knives are arranged with their front and rear positions staggered through the standard seat and the extended seat. The rotary knife is a three-blade knife, and the blades of adjacent rotary knives are staggered. A positioning knife is installed between the mounting seat and the rotary knife. The positioning knife includes a passive blade perpendicular to the transmission shaft and parallel to the blade of the rotary knife.

[0007] Preferably, the length difference between the extended seat and the standard seat is not less than ten centimeters.

[0008] Preferably, when the number of the mounting seats is three or more, the standard seats and the extended seats are arranged at intervals.

[0009] Preferably, the blade of the rotary knife is arc-shaped, the passive blade is the same shape as the blade of the rotary knife or is strip-shaped, and the cutting edge of the rotary knife and the cutting edge of the passive blade are arranged away from each other and in opposite left and right directions.

[0010] Preferably, the positioning knife includes a connection disk fixedly connected to the mounting seat and movably sleeved on the transmission shaft, a disk knife seat movably sleeved on the connection disk, two fixing plates symmetrically and fixedly connected to the inner side wall of the disk knife seat, two support plates symmetrically and fixedly connected to the inner side wall of the connection disk, and a buffer spring installed between the adjacent fixing plate and support plate and located inside the disk knife seat. The passive blade is fixedly connected to the disk knife seat.

[0011] Preferably, there are two to three passive blades, which are fixedly connected to the circumference of the disk knife seat at equal intervals.

[0012] Preferably, the buffer spring is an arc-shaped spring.

[0013] Preferably, positioning protrusions for positioning the buffer spring are provided on the opposite surfaces of the fixing plate and the support plate where the two ends of the buffer spring are oppositely arranged.

[0014] Preferably, the connection disk is provided with an inner sleeve movably sleeved on the transmission shaft, a sealing flange movably inserted inside the disk knife seat and slidably connected to the inner circumferential wall of the disk knife seat, and a fixing groove for installing bolts to connect with the mounting seat.

[0015] Preferably, the disk knife seat is provided with an outer sleeve movably sleeved outside the inner sleeve and supported inside the buffer spring.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The rotary knife of the utility model rotates at a high speed to cut aquatic plants, and cooperates with the positioning knife and the passive blade to shear the aquatic plants. When the rotary knife shears a hard object, the passive blade is subjected to circumferential extrusion and rotates slightly around the transmission shaft. The gap between the rotary knife and the passive blade increases, which is convenient for the hard object to pass through the gap, preventing the hard object from directly damaging the blades of the rotary knife and the passive blade without being able to avoid it. By arranging the adjacent rotary knives in a staggered manner front and back, it is convenient to insert into the aquatic plants piled up on the water surface successively in time, avoiding the aquatic plants piling up together and the rotary blades being unable to insert into the aquatic plants, resulting in the aquatic plants being pushed away by the weed removal boat, thereby improving the weed removal efficiency and solving the problem that the front and rear positions of the rotating three-blade knife at the bow of the weed removal boat in the prior art are flush, which is easy to push the aquatic plants away and affect the normal weed removal efficiency when the aquatic plants are piled up thickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is the utility model Figure 1 structural schematic diagram at the corresponding position of the mounting seat;

[0020] Figure 3 is a partial structural schematic diagram of the bow of the hull of the utility model;

[0021] Figure 4 It is a top view of the bow partial structure of the hull of the present utility model;

[0022] Figure 5 It is a right view of the passive blade and the disc cutter seat of the present utility model;

[0023] Figure 6 It is a left view of the connecting plate of the present utility model;

[0024] Figure 7 It is a schematic diagram of the installation of the buffer spring on the disc cutter seat of the present utility model;

[0025] Figure 8 It is a partial structure cross-sectional view at the corresponding position of the positioning cutter of the present utility model.

[0026] In the figure: 1, hull; 2, transmission shaft; 3, rotary cutter; 4, mounting seat; 401, standard seat; 402, extension seat; 5, positioning cutter; 501, passive blade; 502, connecting plate; 5021, support plate; 5022, inner sleeve; 5023, sealing flange; 5024, fixing groove; 503, disc cutter seat; 5031, fixing plate; 5032, outer sleeve; 504, buffer spring; 505, positioning protrusion. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Such as Figure 1-8As shown in the figure, the present utility model provides a technical solution: a weeding device for a weeding boat, which includes a transmission shaft 2 arranged at the front end of the hull 1 and a rotary knife 3 fixedly installed on the transmission shaft 2. The surface of the transmission shaft 2 is movably sleeved with a mounting seat 4 fixedly installed at the front end of the hull 1. There are at least two mounting seats 4, including a standard seat 401 and an extended seat 402. The number of rotary knives 3 is the same as that of the mounting seats 4, and adjacent two rotary knives 3 are arranged with their front and rear positions staggered through the standard seat 401 and the extended seat 402. The length difference between the extended seat 402 and the standard seat 401 is not less than ten centimeters. When the number of the mounting seats 4 is three or more, the standard seats 401 and the extended seats 402 are arranged at intervals to ensure that adjacent two rotary knives 3 and the corresponding positioning knives 5 are staggered in the front and rear positions. When cutting aquatic plants, one cuts in front and the other cuts behind, which is convenient to insert into the aquatic plants piled up on the water surface successively in terms of time, avoiding the situation that the aquatic plants are piled up together and the rotary blades 3 cannot insert into the aquatic plants, resulting in the aquatic plants being pushed away by the weeding boat, and improving the weeding efficiency;

[0029] The rotary knife 3 is a three-blade knife, and the blade positions of adjacent two rotary knives 3 are staggered. A positioning knife 5 is installed between the mounting seat 4 and the rotary knife 3. The positioning knife 5 includes a passive blade 501 perpendicular to the transmission shaft 2 and parallel to the blade of the rotary knife 3. There are two to three passive blades 501, which are equidistantly and fixedly connected to the circumference of the disc knife seat 503. The blade of the rotary knife 3 is arc-shaped. The passive blade 501 has the same shape as the blade of the rotary knife 3 or is strip-shaped. The cutting edge of the rotary knife 3 and the cutting edge of the passive blade 501 are arranged to face away from each other and in opposite left and right directions. The cutting edge of the rotary knife 3 faces away from the stern of the boat, and the cutting edge of the passive blade 501 faces the stern of the boat, and they cooperate with each other to play a shearing role, which is more efficient and has a better effect than directly rotating the rotary knife 3 to cut aquatic plants;

[0030] The positioning knife 5 includes a connection disk 502 fixedly connected to the mounting seat 4 and movably sleeved on the transmission shaft 2, a disc knife seat 503 movably sleeved on the connection disk 502, two fixing plates 5031 symmetrically and fixedly connected to the inner side wall of the disc knife seat 503, two support plates 5021 symmetrically and fixedly connected to the inner side wall of the connection disk 502, and a buffer spring 504 installed between the adjacent fixing plate 5031 and the support plate 5021 and located inside the disc knife seat 503;

[0031] The buffer spring 504 is an arc-shaped spring. Positioning protrusions 505 for positioning the buffer spring 504 are provided on the opposite surfaces of the fixed plate 5031 and the support plate 5021 which are oppositely arranged at both ends of the buffer spring 504. The passive blade 501 is fixedly connected to the disc cutter seat 503. An inner sleeve 5022 which is movably sleeved on the transmission shaft 2, a sealing flange 5023 which is movably inserted inside the disc cutter seat 503 and slidably connected to the circumferential inner wall of the disc cutter seat 503, and a fixing groove 5024 for installing bolts to connect with the mounting seat 4 are provided on the connecting disc 502. An outer sleeve 5032 which is movably sleeved outside the inner sleeve 5022 and supported inside the buffer spring 504 is provided on the disc cutter seat 503.

[0032] Working principle:

[0033] The rear half part of the positioning knife 5, namely the connecting disc 502, is fixedly installed on the mounting seat 4. The front half part of the positioning knife 5, namely the disc cutter seat 503, is movably sleeved on the inner sleeve 5022. And the buffer spring 504 is clamped and installed between the connecting disc 502 and the disc cutter seat 503 through the support plate 5021 and the fixed plate 5031, so that the disc cutter seat 503 and the passive blade 501 can rotate slightly around the transmission shaft 2.

[0034] During the forward movement of the weeding boat, the internal drive mechanism drives the rotary cutter 3 to rotate at a high speed through the transmission shaft 2 to rotate and cut aquatic plants, and cooperates with the positioning knife 5 and the passive blade 501 to shear the aquatic plants. There is a vertical gap between the rotary cutter 3 and the passive blade 501. When the rotary cutter 3 shears a hard object, the passive blade 501 is squeezed in the circumferential direction and rotates slightly around the transmission shaft 2, and the gap between the rotary cutter 3 and the passive blade 501 increases, which is convenient for the hard object to pass through the gap, preventing the hard object from directly damaging the blades of the rotary cutter 3 and the passive blade 501 without being able to avoid it. By arranging the adjacent rotary cutters 3 in a staggered manner front and back, when cutting the aquatic plants, they cut one after another, which is convenient to insert into the aquatic plants piled up on the water surface successively in terms of time, avoiding the aquatic plants piling up together and the rotary blade 3 being unable to insert into the aquatic plants and causing the aquatic plants to be pushed away by the weeding boat, and improving the weeding efficiency.

[0035] It should be noted that in this text, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weed removal device for a weed removal boat, comprising a transmission shaft (2) arranged at the front end of a hull (1) and a rotary knife (3) fixedly installed on the transmission shaft (2), wherein a mounting seat (4) fixedly installed at the front end of the hull (1) is movably sleeved on the surface of the transmission shaft (2), and the characteristics are as follows: The mounting seats (4) have at least two and include a standard seat (401) and an extended seat (402); the number of the rotating knives (3) is the same as that of the mounting seats (4); and two adjacent rotating knives (3) are staggered in front and back positions through the standard seat (401) and the extended seat (402); the rotating knives (3) are three-leaf knives, and the blade positions of the two adjacent rotating knives (3) are staggered; a positioning knife (5) is installed between the mounting seat (4) and the rotating knife (3); the positioning knife (5) includes a passive blade (501) perpendicular to the transmission shaft (2) and parallel to the blade of the rotating knife (3).

2. The weed removal device of a weed removal ship according to claim 1, characterized in that: The length difference between the extended seat (402) and the standard seat (401) is not less than ten centimeters.

3. The weed removal device of a weed removal boat according to claim 1, characterized in that: When the number of the mounting seats (4) is three or more, the standard seats (401) and the extended seats (402) are arranged at intervals.

4. The weed removal device of a weed removal ship according to claim 1, characterized in that: The blade of the rotating knife (3) is arc-shaped, the passive blade (501) is the same shape as the blade of the rotating knife (3) or is in the shape of an elongated strip, and the blade of the rotating knife (3) and the blade of the passive blade (501) are arranged in opposite directions.

5. The weed removal device of a weed removal boat according to claim 1, characterized in that: The positioning knife (5) comprises a connecting disk (502) fixedly connected to the mounting seat (4) and movably sleeved on the transmission shaft (2), a disc knife seat (503) movably sleeved on the connecting disk (502), two fixed plates (5031) symmetrically fixedly connected to the inner side wall of the disc knife seat (503), two supporting plates (5021) symmetrically fixedly connected to the inner side wall of the connecting disk (502), and a buffer spring (504) installed between adjacent fixed plates (5031) and supporting plates (5021) and located inside the disc knife seat (503). The passive blade (501) is fixedly connected to the disc knife seat (503).

6. The weeding device of a weeding boat according to claim 5, characterized in that: The passive blades (501) are two or three and are fixedly connected to the circumference of the disc blade seat (503) at equal intervals.

7. The weed removal device of a weed removal boat according to claim 5, characterized in that: The buffer spring (504) is an arc-shaped spring.

8. The weed removal device of a weed removal boat according to claim 5, characterized in that: The opposite surfaces of the fixing plate (5031) and the support plate (5021) arranged opposite to each other at both ends of the buffer spring (504) are both provided with positioning protrusions (505) for positioning the buffer spring (504).

9. The weed removal device of a weed removal ship according to claim 5, characterized in that: The connecting disc (502) is provided with an inner sleeve (5022) movably sleeved on the transmission shaft (2), a sealing flange (5023) movably inserted into the inside of the disc cutter seat (503) and slidably connected to the circumferential inner wall of the disc cutter seat (503), and a fixing groove (5024) for connecting the mounting bolt to the mounting seat (4).

10. The weed removal device of a weed removal ship according to claim 9, characterized in that: The disc cutter seat (503) is provided with an outer sleeve (5032) that is movably sleeved on the outside of the inner sleeve (5022) and supported on the inner side of the buffer spring (504).