Mowing head with multiple tool bits

Abstract

The invention relates to the technical field of mowing heads, in particular to a multi-tool-bit mowing head which comprises a hand frame and a rotating frame fixedly connected to the bottom of the hand frame, the bottom of the rotating frame is connected with a connecting plate, the bottom of the connecting plate is provided with a mowing head, the mowing head comprises a top cover and tool bits which are installed at the top of the mowing head, and a button is installed at the bottom of the mowing head. A spring is fixedly connected to the top of the button, a mounting groove is formed in the mowing head, a stop pin is rotationally connected to the interior of the mounting groove, and a torsional spring is connected to the outer surface of the stop pin. According to the mowing head with the multiple tool bits, the button is pressed downwards, then the tool bits are inserted into the mounting grooves and pushed into the mounting grooves, meanwhile, one ends of the tool bits extrude the through stop pin, the through stop pin is made to rotate downwards, when the positions of the clamping holes of the tool bits exceed the through stop pin, the tool bits are pulled outwards, and meanwhile under the action of the torsional spring, the through stop pin rotates downwards; therefore, the installation of the tool bit is realized, and the operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of mowing heads, in particular to a mowing head with multiple blades. Background Art

[0002] Agricultural planting is a technology that humans have relied on for thousands of years. In agricultural planting, weeds often grow in the fields. These weeds are detrimental to the growth of crops, so they need to be removed. Otherwise, these weeds will consume a large part of the nutrients in the soil, thereby greatly reducing the crop yield. A lawn mower is needed in the weeding process.

[0003] The existing multi-head lawn mower includes: a shell, a left front wheel and a right front wheel arranged at the front end of the shell, a left rear wheel and a right rear wheel arranged at the rear end of the shell, a cutter head assembly for mowing grass housed in the shell, and an operating rod extending backward from the shell. The cutter head assembly includes: a cutter head with two cutter heads, and a power device connected to the cutter head for driving the cutter head to rotate. The shell includes a top for mounting the power device, and a vortex part fixed below the top. When observing from the bottom to the top of the lawn mower, the vortex part includes a front end face located in front of the cutter head, a rear end face located behind the cutter head, and a top plate. The three together enclose an annular space for accommodating the cutter head, and the two cutter heads of the cutter head are symmetrically arranged on the left and right sides along the longitudinal axis of the lawn mower.

[0004] However, the existing multi-head mowers have fixed cutter heads, which makes it inconvenient to replace the cutter heads when they are damaged. Summary of the invention

[0005] The object of the present invention is to provide a mowing head with multiple blades to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a multi-blade mower head, comprising a hand frame and a rotating frame fixedly connected to the bottom of the hand frame, the bottom of the rotating frame is connected to a connecting plate, and the bottom of the connecting plate is provided with a mower head; The mowing head includes a top cover and a cutter head installed on the top of the mowing head, a button is installed at the bottom of the mowing head, a spring is fixedly connected to the top of the button, a mounting groove is opened inside the mowing head, a stop pin is rotatably connected inside the mounting groove, and a torsion spring is connected to the outer surface of the stop pin.

[0007] Preferably, the surface of the cutter head is provided with a through hole whose diameter is larger than the diameter of the stop pin, and the cutter head is provided in three groups and is distributed at equal intervals.

[0008] Preferably, a connecting mechanism is provided at the bottom of the connecting plate, and the connecting mechanism includes a damping rod, a fixed magnetic ring, a movable magnetic ring and a buffer spring, the buffer spring is fixedly connected to the bottom of the connecting plate, the fixed magnetic ring is fixedly connected to the bottom of the connecting plate, the damping rod is fixedly connected to the bottom of the fixed magnetic ring, and the movable magnetic ring is fixedly connected to the outer surface of the damping rod.

[0009] Preferably, the sides of the fixed magnetic ring and the movable magnetic ring that are close to each other attract each other, and the bottoms of the buffer spring and the damping rod are both connected to the top of the top cover.

[0010] Preferably, a retaining frame is connected to a side of the rotating frame, a side of the retaining frame away from the rotating frame is connected to a running wheel, and a side of the retaining frame is rotatably connected to a water tank.

[0011] Preferably, a water inlet pipe is fixedly connected to the top center of the water tank, an observation hole is installed on the top right side of the water tank, a water spray pipe is fixedly connected to the bottom of the water tank, and water outlet holes are opened at equal intervals at the bottom of the water spray pipe.

[0012] Preferably, a partition is fixedly connected to the left side of the inner wall of the water tank, a motor is fixedly installed on the left side of the partition, a mixing rod is connected to the output end of the motor, a side plate is fixedly connected to the outer surface of the mixing rod, and a mixing plate is fixedly connected to the bottom of the side plate.

[0013] Preferably, an annular sleeve is fixedly connected to the outer surface of the mixing rod, a connecting block is fixedly connected to the outer surface of the annular sleeve, and a bottom plate is fixedly connected to the right side of the mixing rod.

[0014] Preferably, a slide groove is provided inside the bottom plate, a fixed block is slidably connected inside the slide groove, a telescopic spring is fixedly connected to the side of the fixed block, a slider is fixedly connected to one end of the telescopic spring away from the fixed block, a fixed plate is fixedly connected to the top of the slider, an elastic rope is fixedly connected to the side of the fixed plate, and a limiting ring is fixedly connected to the right side of the outer surface of the mixing rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. For the mowing head with multiple blades, when the blade head needs to be installed, press the button downward, insert the blade head into the installation slot, and push the blade head into the installation slot. At the same time, squeeze the stop pin at one end of the blade head to rotate the stop pin downward. When the position of the clamping hole of the blade head exceeds the stop pin, pull the blade head outward. At the same time, under the action of the torsion spring, the stop pin is driven to reset and engage with the through hole provided in the blade head to achieve the installation of the blade head. The operation is convenient. When the blade head needs to be disassembled, press the button downward, push the blade head to move inside the mowing head, and then pull the blade head out from the middle position of the mowing head to achieve the disassembly of the blade head.

[0016] 2. For the multi-blade mower head, the water in the water tank will flow to the sprinkler pipe and finally out of the water outlet. The equally spaced water outlets can make the water flow out at a uniform speed. The water drops on the grass after flowing out can moisten the grass. After the moistened grass is cut, the dust dispersion can be reduced, thereby reducing the pollution to the environment during the mowing process.

[0017] 3. During the mowing process, the multi-blade mower head can add herbicide into the water tank through the water inlet pipe, and by starting the motor, the output shaft of the motor drives the mixing rod to rotate, and the mixing rod drives the side plate and the mixing plate to rotate, so as to mix the herbicide inside the water tank and prevent weeds from growing on the grass again. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the travel wheel and the retaining frame of the present invention; Figure 3 It is a schematic diagram of the overall structure of the water tank of the present invention; Figure 4 It is a schematic diagram of the bottom structure of the water tank of the present invention; Figure 5 It is a left side sectional view of the interior of the water tank of the present invention; Figure 6 It is a schematic diagram of the structure of the mixing mechanism inside the water tank of the present invention; Figure 7 for Figure 6 A schematic diagram of the structure enlargement in the middle; Figure 8 It is a schematic diagram of the connection mechanism structure of the present invention; Fig. 9 It is a schematic diagram of the overall structure of the mowing head of the present invention; Fig.10 It is a schematic diagram of the internal structure of the mowing head of the present invention; Fig.11 It is a schematic diagram of the bottom structure of the mowing head of the present invention.

[0020] In the figure: 1, hand frame; 2, rotating frame; 3, connecting plate; 301, damping rod; 302, fixed magnetic ring; 303, movable magnetic ring; 304, buffer spring; 4, mowing head; 401, top cover; 402, button; 403, spring; 404, mounting groove; 405, stop pin; 406, torsion spring; 407, cutter head; 5, walking wheel; 6, retaining frame; 7, water tank; 701, water inlet pipe; 702, 02, observation hole; 703, water spray pipe; 704, water outlet; 705, motor; 7051, mixing rod; 7052, side plate; 7053, mixing plate; 7054, annular sleeve; 7055, connecting block; 7056, bottom plate; 7057, fixing block; 7058, telescopic spring; 7059, slider; 70510, fixing plate; 70511, elastic rope; 70512, limiting ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-Figure 11 , the present invention provides a technical solution: Embodiment 1: A multi-blade mowing head comprises a hand frame 1 and a rotating frame 2 fixedly connected to the bottom of the hand frame 1, the bottom of the rotating frame 2 is connected to a connecting plate 3, the bottom of the connecting plate 3 is provided with a mowing head 4, the side of the rotating frame 2 is connected to a retaining frame 6, the side of the retaining frame 6 away from the rotating frame 2 is connected to a walking wheel 5, and the side of the retaining frame 6 is rotatably connected to a water tank 7.

[0024] The mowing head 4 includes a top cover 401 and a cutter head 407 installed on the top of the mowing head 4. A motor for driving the mowing head 4 to rotate as a whole is installed in the top cover 401. A button 402 is installed at the bottom of the mowing head 4. A spring 403 is fixedly connected to the top of the button 402. A mounting groove 404 is provided inside the mowing head 4. A stop pin 405 is rotatably connected inside the mounting groove 404. A torsion spring 406 is connected to the outer surface of the stop pin 405. A through hole with a diameter larger than the diameter of the stop pin 405 is provided on the surface of the cutter head 407. Three groups of cutter heads 407 are arranged and are distributed at equal intervals.

[0025] When it is necessary to install the cutter head 407, press the button 402 downward, then insert the cutter head 407 into the installation slot 404, and push the cutter head 407 into the installation slot 404. At the same time, one end of the cutter head 407 squeezes the stop pin 405 to rotate the stop pin 405 downward. When the position of the card hole of the cutter head 407 exceeds the stop pin 405, the cutter head 407 is pulled outward again. At the same time, under the action of the torsion spring 406, the stop pin 405 is driven to reset and engage with the through hole provided in the cutter head 407, so as to achieve the installation of the cutter head 407. The operation is convenient. When it is necessary to disassemble the cutter head 407, press the button 402 downward, then push the cutter head 407 to move toward the inside of the mowing head 4, and then pull the cutter head 407 out from the middle position of the mowing head 4 to achieve the disassembly of the cutter head 407.

[0026] A connecting mechanism is provided at the bottom of the connecting plate 3, and the connecting mechanism includes a damping rod 301, a fixed magnetic ring 302, a movable magnetic ring 303 and a buffer spring 304. The buffer spring 304 is fixedly connected to the bottom of the connecting plate 3, the fixed magnetic ring 302 is fixedly connected to the bottom of the connecting plate 3, the damping rod 301 is fixedly connected to the bottom of the fixed magnetic ring 302, and the movable magnetic ring 303 is fixedly connected to the outer surface of the damping rod 301. The fixed magnetic ring 302 and the movable magnetic ring 303 are attracted to each other on their respective sides. Both the fixed magnetic ring 302 and the movable magnetic ring 303 are strong magnets. The bottoms of the buffer spring 304 and the damping rod 301 are connected to the top of the top cover 401.

[0027] When mowing, the bottom of the mowing head 4 will contact the ground, and the bottom of the running wheel 5 will also contact the ground, because the bottom of the mowing head 4 needs to be kept flush with the bottom of the running wheel 5. As the ground is rugged, the mowing head 4 will be lifted up and the overall height will be raised, and the damping rod 301 will be pushed to shrink, and the buffer spring 304 will also shrink, thereby playing a buffering effect during driving. When the mowing head 4 is retracted, the mowing head 4 can be pushed to shrink the damping rod 301 and squeeze the buffer spring 304. When the movable magnetic ring 303 is close to the fixed magnetic ring 302, the fixed magnetic ring 302 and the movable magnetic ring 303 are close to each other. The side will attract each other, so that the overall height of the mowing head 4 is raised and retracted.

[0028] A water inlet pipe 701 is fixedly connected to the center of the top of the water tank 7, an observation hole 702 is installed on the right side of the top of the water tank 7, and a water spray pipe 703 is fixedly connected to the bottom of the water tank 7. Water outlet holes 704 are evenly spaced at the bottom of the water spray pipe 703. When the hand frame 1 is pushed to push the lawn mower to move as a whole, the two ends of the water tank 7 are rotatably connected to the retaining frame 6, so they will always remain in a downward state under the action of gravity. The water inside the water tank 7 will flow to the water spray pipe 703 and finally flow out from the water outlet hole 704. The water outlet holes 704 distributed at equal intervals can make the water flow out at a uniform speed. The water drops on the grass after flowing out can make the grass moist. After the moistened grass is cut, the dispersion of dust can be reduced, thereby reducing the pollution to the environment during the mowing process.

[0029] Embodiment 2: On the basis of embodiment 1, a partition is fixedly connected to the left side of the inner wall of the water tank 7, a motor 705 is fixedly installed on the left side of the partition, a mixing rod 7051 is connected to the output end of the motor 705, a side plate 7052 is fixedly connected to the outer surface of the mixing rod 7051, a mixing plate 7053 is fixedly connected to the bottom of the side plate 7052, an annular sleeve 7054 is fixedly connected to the outer surface of the mixing rod 7051, a connecting block 7055 is fixedly connected to the outer surface of the annular sleeve 7054, and a bottom plate 7056 is fixedly connected to the right side of the mixing rod 7051.

[0030] A sliding groove is provided inside the bottom plate 7056, and a fixed block 7057 is slidably connected inside the sliding groove. A telescopic spring 7058 is fixedly connected to the side of the fixed block 7057, and a slider 7059 is fixedly connected to the end of the telescopic spring 7058 away from the fixed block 7057. A fixed plate 70510 is fixedly connected to the top of the slider 7059, and an elastic rope 70511 is fixedly connected to the side of the fixed plate 70510. The end of the elastic rope 70511 away from the fixed plate 70510 is connected to the bottom of the connecting block 7055, and a limiting ring 70512 is fixedly connected to the right side of the outer surface of the mixing rod 7051.

[0031] During the mowing process, herbicide can be added to the water tank 7 through the water inlet pipe 701, and the motor 705 is started, and the output shaft of the motor 705 drives the mixing rod 7051 to rotate, and the mixing rod 7051 drives the side plate 7052 and the mixing plate 7053 to rotate, so as to mix the herbicide in the water tank 7 and enhance the mixing effect. The mixing rod 7051 drives the bottom plate 7056 to rotate during the rotation, so that the slider 7059 in the bottom plate 7056 generates centrifugal force. Under the action of the centrifugal force, the slider 7059 drives the fixed plate 70510 to slide to the side away from the mixing rod 7051, and at the same time pulls the elastic rope 70511, and the elastic rope 70511 is connected to the connecting block 7055, thereby pulling the annular sleeve 7054 to slide up and down on the surface of the mixing rod 7051, and through its top The bottom of the mixing rod 7051 is scraped off during the mixing process of the herbicide, so as to prevent the herbicide from being attached during the mixing process, which increases the difficulty of cleaning. During the sliding process of the slider 7059, the telescopic spring 7058 on one side is squeezed and the telescopic spring 7058 on the other side is stretched. When the telescopic spring 7058 on one side is squeezed to the maximum compression amount or the telescopic spring 7058 on the other side is stretched to the maximum stretching amount, a reverse force is applied to the slider 7059 under the action of its own restoring force, and under the subsequent centrifugal force, the slider 7059 continuously reciprocates inside the slide groove, and then the annular sleeve 7054 is continuously pulled up and down by the elastic rope 70511 to continuously clean the feed on the outer surface of the mixing rod 7051, thereby further improving the cleaning effect.

[0032] Working principle: when mowing, the bottom of the mowing head 4 will contact the ground, and the bottom of the walking wheel 5 will also contact the ground. By pushing the hand frame 1, the rotating frame 2 and the retaining frame 6 will be driven to move, and the water in the water tank 7 will flow to the water spray pipe 703, and finally flow out from the water outlet 704. The water outlets 704 distributed at equal intervals can make the water flow out at a uniform speed. The water drops on the grass after flowing out can make the grass wet. After the wet grass is cut, the dispersion of dust can be reduced. During the mowing process, herbicide can be added to the water tank 7 through the water inlet pipe 701. By starting the motor 705, the output shaft of the motor 705 drives the mixing rod 7051 to rotate, and the mixing rod 7051 drives the side plate 7052 and the mixing plate 7053 to rotate, so as to mix the herbicide in the water tank 7.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mowing head with multiple blades, comprising a hand frame (1) and a rotating frame (2) fixedly connected to the bottom of the hand frame (1), characterized in that: The bottom of the rotating frame (2) is connected to a connecting plate (3), and the bottom of the connecting plate (3) is provided with a mowing head (4); The mowing head (4) comprises a top cover (401) and a cutter head (407) mounted on the top of the mowing head (4); a button (402) is mounted on the bottom of the mowing head (4); a spring (403) is fixedly connected to the top of the button (402); a mounting groove (404) is provided inside the mowing head (4); a stop pin (405) is rotatably connected inside the mounting groove (404); and a torsion spring (406) is connected to the outer surface of the stop pin (405).

2. A multi-blade mower head according to claim 1, characterized in that: The surface of the cutter head (407) is provided with a through hole having a diameter greater than the diameter of the stop pin (405), and the cutter head (407) is provided in three groups and is distributed at equal intervals.

3. The multi-blade mower head according to claim 1, characterized in that: A connecting mechanism is provided at the bottom of the connecting plate (3), the connecting mechanism comprising a damping rod (301), a fixed magnetic ring (302), a movable magnetic ring (303) and a buffer spring (304), the buffer spring (304) being fixedly connected to the bottom of the connecting plate (3), the fixed magnetic ring (302) being fixedly connected to the bottom of the connecting plate (3), the damping rod (301) being fixedly connected to the bottom of the fixed magnetic ring (302), and the movable magnetic ring (303) being fixedly connected to the outer surface of the damping rod (301).

4. A multi-blade mower head according to claim 3, characterized in that: The fixed magnetic ring (302) and the movable magnetic ring (303) attract each other at their adjacent sides, and the bottoms of the buffer spring (304) and the damping rod (301) are both connected to the top of the top cover (401).

5. The multi-blade mower head according to claim 1, characterized in that: A retaining frame (6) is connected to the side of the rotating frame (2), a side of the retaining frame (6) away from the rotating frame (2) is connected to a running wheel (5), and a side of the retaining frame (6) is rotatably connected to a water tank (7).

6. The multi-blade mower head according to claim 5, characterized in that: A water inlet pipe (701) is fixedly connected to the center of the top of the water tank (7), an observation hole (702) is installed on the right side of the top of the water tank (7), a water spray pipe (703) is fixedly connected to the bottom of the water tank (7), and water outlet holes (704) are arranged at equal intervals at the bottom of the water spray pipe (703).

7. The multi-blade mower head according to claim 6, characterized in that: A partition is fixedly connected to the left side of the inner wall of the water tank (7), a motor (705) is fixedly installed on the left side of the partition, a mixing rod (7051) is connected to the output end of the motor (705), a side plate (7052) is fixedly connected to the outer surface of the mixing rod (7051), and a mixing plate (7053) is fixedly connected to the bottom of the side plate (7052).

8. The multi-blade mower head according to claim 7, characterized in that: An annular sleeve (7054) is fixedly connected to the outer surface of the mixing rod (7051), a connecting block (7055) is fixedly connected to the outer surface of the annular sleeve (7054), and a bottom plate (7056) is fixedly connected to the right side of the mixing rod (7051).

9. The multi-blade mower head according to claim 8, characterized in that: A sliding groove is provided inside the bottom plate (7056), a fixed block (7057) is slidably connected inside the sliding groove, a telescopic spring (7058) is fixedly connected to the side of the fixed block (7057), a sliding block (7059) is fixedly connected to one end of the telescopic spring (7058) away from the fixed block (7057), a fixing plate (70510) is fixedly connected to the top of the sliding block (7059), an elastic rope (70511) is fixedly connected to the side of the fixing plate (70510), and a limiting ring (70512) is fixedly connected to the right side of the outer surface of the mixing rod (7051).

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