Low lawn grass seed harvesting device

Abstract

The utility model belongs to the technical field of agricultural planting instruments, particularly relates to a low lawn grass seed harvesting device, and provides the following scheme aiming at the problem that seeds harvested by an existing device contain a large number of spike stems and unsmashed seed spikes, and consequently the seeds need to be screened subsequently. Comprising a base, a power source, a circular cutting knife, a conveying assembly, a grass seed combing, brushing and screening assembly and a discharging assembly, a lawn continuously rolls and moves on the surface of a sieve plate through shaking of the sieve plate, grass seeds in the lawn can make contact with sieve holes from different angles, and separation of the grass seeds is better facilitated; through the connection of a telescopic sliding rod and a first reset spring, the sieve plate can be adaptively adjusted according to the actual conditions of the lawn and the grass seeds, when many impurities exist in the lawn or the sizes of the grass seeds are different, the sieve plate can shake at the appropriate amplitude and frequency, the grass seeds smoothly pass through sieve holes, large impurities are left on the sieve plate, and the service life of the sieve plate is prolonged. Therefore, the precision of seed and impurity separation is improved.

Description

Technical Field

[0001] This utility model relates to a harvesting device, specifically a low-growing turfgrass seed harvesting device, belonging to the field of agricultural planting machinery technology. Background Technology

[0002] Harvesting low-growing turfgrass seeds is an extremely challenging task in the modern turfgrass maintenance and seed breeding industry. With the acceleration of urbanization, turfgrass is increasingly used in urban landscapes, garden design, and many other fields, leading to a growing demand for high-quality turfgrass seeds.

[0003] In the prior art, such as the hand-operated wild forage seed harvesting device disclosed in CN207560801U, the purpose is to realize the harvesting technology of forage ears under complex terrain conditions in high-altitude areas. This solves the problem that the harvesting of forage ears growing in complex terrain conditions in high-altitude areas is entirely dependent on manual labor, reduces labor, improves work efficiency, and has the value of promotion and application. However, although the prior art can achieve the harvesting and processing of grass seeds, the collected seeds contain a large number of stalks and unbroken ears of grass, resulting in a lot of impurities in the harvested seeds. This leads to the need for subsequent seed screening, which is time-consuming and labor-intensive, and cannot achieve efficient harvesting of grass seeds. Utility Model Content

[0004] This invention provides a low-growing turfgrass seed harvesting device to address the problem that existing devices harvest seeds containing a large number of stalks and uncrushed seed ears, requiring subsequent seed screening.

[0005] This utility model achieves the above-mentioned objectives through the following technical solution: a low-growing turfgrass seed harvesting device, comprising a base, a power supply, a push handle, a circular cutter, a shock-absorbing wheel, and a mowing motor. The shock-absorbing wheel is disposed on the bottom surface of the base, and the shock-absorbing wheel is positioned at the four corners of the bottom surface of the base. The push handle is fixedly connected to one side surface of the base. The power supply is fixedly installed on the surface of the base, and the connection position of the power supply is close to the push handle. The mowing motor is fixedly connected to the surface of the base, and the connection position of the mowing motor is far away from the power supply. The output end of the mowing motor is fixedly connected to a circular cutter, and the circular cutter is located below the base.

[0006] The base surface is provided with a conveying assembly, which includes a conveying cover, a limiting plate and a lawn conveying unit. The conveying cover is fixedly connected to the upper surface of the base, the limiting plate is symmetrically fixedly connected to the inner wall of the conveying cover, and the lawn conveying unit is located inside the conveying cover.

[0007] A grass seed combing and screening assembly is provided between the conveyor hood and the base. The grass seed combing and screening assembly includes a screening frame, a strip plate and a grass seed screening unit. The screening frame is fixedly connected to the outlet position of the conveyor hood. The screening frame and the base are fixedly connected. The strip plate is symmetrically fixedly connected inside the screening frame. The grass seed screening unit is set inside the screening frame.

[0008] The screening frame is also equipped with a discharge assembly, which includes a screw, a discharge motor and a pusher unit. The screw is rotatably connected to the inner wall of the screening frame, the discharge motor is fixedly connected to the surface of the screening frame, the output end of the discharge motor is coaxially fixedly connected to the screw, and the pusher unit is located inside the screening frame.

[0009] As a further embodiment of this utility model: the lawn conveying unit includes a conveying rod, a sprocket, a chain, and conveying strips. The conveying rod is rotatably connected between two limiting plates at equal intervals. Each conveying rod is symmetrically fitted with a sprocket, and the sprocket is located near both ends of the conveying rod. The three sprockets on the same side are connected by chain drive. Multiple conveying strips are fixedly connected at equal intervals on the surface of the chain on both sides.

[0010] As a further embodiment of this utility model: the grass seed screening unit includes a sieve plate, a telescopic slide rod and a first return spring. There is a height difference between the two strip plates, and multiple telescopic slide rods are fixedly connected at equal intervals on the surface of each strip plate. The sieve plate is fixedly connected to the top of the telescopic slide rod. The sieve plate is inclined relative to the strip plate. The first return spring is fixedly connected at equal intervals between the sieve plate and the strip plate. The first return spring is sleeved on the rod of the telescopic slide rod.

[0011] As a further embodiment of this utility model: a mounting groove is provided on the surface of the conveying cover, and a rectangular frame is fixedly connected in the mounting groove. A first rotating rod is rotatably connected to the inner wall of the rectangular frame. A drive motor is fixedly installed on the surface of the rectangular frame. The end of the first rotating rod is coaxially and fixedly connected to the output shaft of the drive motor. A cam is coaxially and fixedly sleeved on the body of the first rotating rod. A T-shaped rod is slidably connected to the inner bottom surface of the rectangular frame. The bottom end of the T-shaped rod extends to the lower side of the rectangular frame, and a comb is fixedly connected to the T-shaped rod. The comb is positioned directly above the screening frame. A second return spring is sleeved on the body of the T-shaped rod. The upper end of the second return spring abuts against the top of the T-shaped rod, and the lower end of the second return spring abuts against the inner bottom surface of the rectangular frame.

[0012] As a further improvement of this utility model, each insert of the comb is fixedly connected to an elastic bristle at its bottom end.

[0013] As a further embodiment of this utility model: one end of the first rotating rod passes through the rectangular frame, and the other end of the first rotating rod extends to the outside of the rectangular frame. The end of the first rotating rod extending to the outside of the rectangular frame is coaxially fixedly connected to a first pulley. A U-shaped plate is rotatably connected to the surface of the first rotating rod. The U-shaped plate and the conveying cover are fixedly connected. One end of the conveying rotating rod is coaxially fixedly connected to a second pulley. A belt is connected between the wheel bodies of the second pulley and the first pulley.

[0014] As a further improvement of this utility model: hydraulic cylinders are fixedly installed at the four corners of the lower surface of the base, and the hydraulic cylinders are arranged in a one-to-one correspondence with the shock-absorbing wheels, and the output end of the hydraulic cylinder is fixedly connected to the shock-absorbing wheel.

[0015] As a further embodiment of this utility model: the pushing unit includes a fixed block, a pushing plate and a rubber stopper plate. A seed discharge groove is opened on one side surface of the screening frame, and a fixed block is fixedly connected in the seed discharge groove. A screw is rotatably connected between the fixed block and the screening frame. The pushing plate is threadedly sleeved on the shaft of the screw. The pushing plate and the screening frame are slidably connected, and the size of the pushing plate is adapted to the screening frame. A rubber stopper plate is detachably connected in the seed discharge groove opened on the surface of the screening frame.

[0016] As a further embodiment of this utility model: a sealing baffle is slidably connected to a discharge port opened on one side of the screening frame at the lower side of the sieve plate, a pull rod is fixedly connected to one side of the sealing baffle, a T-shaped iron block is fixedly connected to the surface of the pull rod, and magnets are symmetrically fixedly connected to a rectangular groove on the surface of the base that matches the T-shaped iron block.

[0017] The beneficial effects of this utility model are:

[0018] This utility model is equipped with a conveying component. On the one hand, the centrifugal force generated by the rotation of the circular cutter allows the cut lawn to smoothly enter the conveying hood and then be conveyed to the screening box by the conveyor strip. This achieves a seamless connection from harvesting to initial transportation, eliminating the need for manual handling of the cut lawn, reducing interruptions in the operation process, making the entire seed harvesting process more compact and efficient, helping to process more lawns per unit time, and improving overall work efficiency.

[0019] On the other hand, it can quickly transport the cut lawn away, avoiding the lawn from piling up in place and reducing seed loss.

[0020] This utility model, by setting up a screening frame, a sieve plate, a telescopic slide bar and a return spring, utilizes the shaking of the sieve plate to make the lawn continuously roll and move on its surface, allowing grass seeds to have more opportunities to pass through the sieve holes. The grass seeds in the lawn can come into contact with the sieve holes from different angles, which is more conducive to the separation of grass seeds, thereby improving the efficiency of seed screening.

[0021] Through the connection of the telescopic slide bar and the first return spring, the sieve plate can shake regularly, allowing it to adapt to the actual conditions of the lawn and grass seeds. When there are many impurities in the lawn or the grass seeds are of different sizes, the sieve plate can shake at a suitable amplitude and frequency, allowing the grass seeds to pass through the sieve holes smoothly, while larger impurities remain on the sieve plate, thereby improving the accuracy of seed and impurity separation.

[0022] 3. This utility model, by setting up a drive motor, a first rotating rod, a cam, a T-shaped rod, and a comb, achieves several advantages. First, the comb can penetrate deeper into the harvested lawn. As the comb moves up and down, it can better penetrate the lawn layer, effectively combing the grass seeds off the stems and greatly improving seed separation efficiency. Second, the reciprocating motion of the comb creates a continuous combing effect on the lawn, stimulating the grass seeds multiple times in a short period of time, causing them to fall off the stems quickly and accelerating the overall seed collection process. Third, the rotation speed of the cam can be changed by adjusting the speed of the drive motor, thereby controlling the up-and-down movement frequency of the T-shaped rod and the comb. The working intensity of the comb can be flexibly adjusted according to the density of the lawn grass, the firmness of the grass seeds, and other actual conditions, making it better adaptable to different types and growth stages of lawn, achieving the best seed combing effect.

[0023] 4. This utility model, by setting a hydraulic cylinder, can adjust the vertical position of the circular cutter according to the actual height of the lawn, and has a wide range of applications. The discharge component can promptly discharge the collected seeds and the remaining lawn stems and leaves on the sieve plate from the sieve frame. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the structure of the base of this utility model. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the structure of the base of this utility model. Figure 2 ;

[0028] Figure 5 This is a cross-sectional structural diagram of the conveyor cover in this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the herbal seed combing and screening component of this utility model. Figure 1 ;

[0030] Figure 7 This is a schematic diagram of the structure of the herbal seed combing and screening component of this utility model. Figure 2 ;

[0031] Figure 8 This is a schematic diagram of the conveying component in this utility model;

[0032] Figure 9 This is a schematic diagram of the connection structure between the T-shaped rod and the comb in this utility model;

[0033] Figure 10 This is a schematic diagram of the sealing baffle in this utility model;

[0034] Figure 11 This is a schematic diagram of the connection structure of the sieve plate in this utility model.

[0035] In the diagram: 1. Base, 2. Power supply, 3. Push handle, 4. Circular cutter, 5. Hydraulic cylinder, 6. Shock-absorbing wheel, 7. Conveying assembly, 71. Conveying cover, 72. Limiting plate, 73. Conveying rotating rod, 74. Sprocket, 75. Chain, 76. Conveying strip, 77. Mounting slot, 8. Grass seed combing and screening assembly, 81. Second pulley, 82. First pulley, 83. Belt, 84. Rectangular frame, 85. First rotating rod, 86. U-shaped plate, 87. Drive motor 88. Machine, cam, 89. T-shaped rod, 810. Second return spring, 811. Comb, 812. Elastic bristles, 813. Screening frame, 814. Strip plate, 815. Screen plate, 816. Telescopic slide rod, 817. First return spring, 9. Discharge assembly, 91. Fixed block, 92. Screw, 93. Push plate, 94. Discharge motor, 95. Sealing baffle, 96. Pull rod, 97. T-shaped iron block, 98. Magnet, 99. Rubber stopper plate. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0037] like Figures 1 to 11As shown, a low-growing turfgrass seed harvesting device includes a base 1, a power supply 2, a push handle 3, a circular cutter 4, a shock-absorbing wheel 6, and a mowing motor 10. The shock-absorbing wheel 6 is located on the bottom surface of the base 1, and the shock-absorbing wheel 6 is positioned at the four corners of the bottom surface of the base 1. The push handle 3 is fixedly connected to one side surface of the base 1. The power supply 2 is fixedly installed on the surface of the base 1, and the connection position of the power supply 2 is close to the push handle 3. The mowing motor 10 is fixedly connected to the surface of the base 1, and the connection position of the mowing motor 10 is far away from the power supply 2. The output end of the mowing motor 10 is fixedly connected to the circular cutter 4, and the circular cutter 4 is located below the base 1, enabling it to harvest low-growing turfgrass.

[0038] The surface of the base 1 is provided with a conveying assembly 7, which includes a conveying cover 71, a limiting plate 72 and a lawn conveying unit. The conveying cover 71 is fixedly connected to the upper surface of the base 1, and the limiting plate 72 is symmetrically fixedly connected to the inner wall of the conveying cover 71. The lawn conveying unit is located inside the conveying cover 71 and can use the cutting centrifugal force of the circular cutter 4 to convey the harvested lawn to the screening frame 813 via the conveying strip 76. There is no need for manual handling of the cut lawn, which reduces the interruption of the operation and makes the entire seed harvesting process more compact and efficient. It helps to process more lawns per unit time and improves the overall work efficiency.

[0039] A grass seed combing and screening assembly 8 is provided between the conveyor hood 71 and the base 1. The grass seed combing and screening assembly 8 includes a screening frame 813, a strip plate 814 and a grass seed screening unit. The screening frame 813 is fixedly connected to the outlet position of the conveyor hood 71 and the base 1. The strip plate 814 is symmetrically fixedly connected inside the screening frame 813. The grass seed screening unit is set inside the screening frame 813. It can use the shaking of the sieve plate 815 to make the lawn roll and move continuously on its surface, allowing grass seeds to have more opportunities to pass through the sieve holes. Grass seeds in the lawn can contact the sieve holes from different angles, which is more conducive to the separation of grass seeds, thereby improving the efficiency of seed screening.

[0040] The screening frame 813 is also equipped with a discharge assembly 9, which includes a screw 92, a discharge motor 94 and a pusher unit. The screw 92 is rotatably connected to the inner wall of the screening frame 813, the discharge motor 94 is fixedly connected to the surface of the screening frame 813, the output end of the discharge motor 94 is coaxially fixedly connected to the screw 92, and the pusher unit is located inside the screening frame 813. Example 2

[0041] Improvements based on Example 1:

[0042] like Figures 1 to 11As shown, the lawn conveying unit includes a conveying rod 73, a sprocket 74, a chain 75, and conveying strips 76. The conveying rod 73 is rotatably connected between two limiting plates 72 at equal intervals. Each conveying rod 73 has a sprocket 74 symmetrically fixedly sleeved on its body, and the sprocket 74 is located near both ends of the conveying rod 73. The three sprockets 74 on the same side are connected by a chain 75. Multiple conveying strips 76 are fixedly connected at equal intervals on the surface of the chain 75 on both sides, which can quickly convey the cut lawn away, avoid the lawn from piling up in place, and reduce seed loss.

[0043] Furthermore, one end of the first rotating rod 85 passes through the rectangular frame 84, and the other end of the first rotating rod 85 extends to the outside of the rectangular frame 84. The end of the first rotating rod 85 extending to the outside of the rectangular frame 84 is coaxially fixedly connected to the first pulley 82. The surface of the first rotating rod 85 is rotatably connected to the U-shaped plate 86, and the U-shaped plate 86 is fixedly connected to the conveyor cover 71. The end of one of the conveying rotating rods 73 is coaxially fixedly connected to the second pulley 81. A belt 83 is connected between the wheel bodies of the second pulley 81 and the first pulley 82, which can indirectly drive the conveyor strip 76 for conveying using the power of the drive motor 87, thus saving energy.

[0044] Furthermore, the grass seed screening unit includes a sieve plate 815, a telescopic slide bar 816, and a first return spring 817. There is a height difference between the two strip plates 814, and multiple telescopic slide bars 816 are fixedly connected at equal intervals on the surface of each strip plate 814. The sieve plate 815 is fixedly connected to the top of the telescopic slide bar 816. The sieve plate 815 is inclined relative to the strip plate 814. The first return spring 817 is fixedly connected at equal intervals between the sieve plate 815 and the strip plate 814. The first return spring 817 is sleeved on the rod of the telescopic slide bar 816 to facilitate the screening of grass seeds in the harvested lawn.

[0045] Furthermore, the surface of the conveyor cover 71 is provided with a mounting groove 77, and a rectangular frame 84 is fixedly connected in the mounting groove 77. A first rotating rod 85 is rotatably connected to the inner wall of the rectangular frame 84. A drive motor 87 is fixedly mounted on the surface of the rectangular frame 84. The end of the first rotating rod 85 is coaxially and fixedly connected to the output shaft of the drive motor 87. A cam 88 is coaxially and fixedly sleeved on the body of the first rotating rod 85. A T-shaped rod 89 is slidably connected to the inner bottom surface of the rectangular frame 84, and the bottom end of the T-shaped rod 89 extends to the lower side of the rectangular frame 84. Furthermore, a comb 811 is fixedly connected to the T-shaped rod 89. The comb 811 is positioned directly above the screening frame 813. A second return spring 810 is sleeved on the body of the T-shaped rod 89. The upper end of the second return spring 810 abuts against the top of the T-shaped rod 89, and the lower end of the second return spring 810 abuts against the inner bottom surface of the rectangular frame 84, allowing it to penetrate deeper into the lawn. When the comb 811 moves up and down, it can better penetrate the lawn grass layer and effectively comb the grass seeds off the grass stems, greatly improving the seed separation efficiency.

[0046] Furthermore, each insert of the comb 811 is fixedly connected to an elastic bristle 812 at its bottom end. The elastic bristle 812 is curved at a specific arc, which is designed according to the growth pattern of low-growing turfgrass. It can penetrate the turfgrass layer just right and gently comb the grass seeds off the grass stems without damaging them.

[0047] Furthermore, hydraulic cylinders 5 are fixedly installed at the four corners of the lower surface of the base 1. The hydraulic cylinders 5 are arranged one-to-one with the shock-absorbing wheels 6, and the output end of the hydraulic cylinder 5 is fixedly connected to the shock-absorbing wheels 6. This allows the vertical position of the circular cutter 4 to be adjusted according to the actual height of the lawn, making it widely applicable.

[0048] Furthermore, the feeding unit includes a fixing block 91, a feeding plate 93, and a rubber stopper plate 99. A seed discharge groove is provided on one side surface of the screening frame 813, and a fixing block 91 is fixedly connected inside the seed discharge groove. A screw 92 is rotatably connected between the fixing block 91 and the screening frame 813. The feeding plate 93 is threadedly sleeved on the shaft of the screw 92. The feeding plate 93 and the screening frame 813 are slidably connected, and the size of the feeding plate 93 is adapted to the size of the screening frame 813. A rubber stopper plate 99 is detachably connected inside the seed discharge groove on the surface of the screening frame 813 to facilitate the removal of the screened seeds from the screening frame 813.

[0049] Furthermore, a sealing baffle 95 is slidably connected to a discharge port opened on one side of the screening frame 813 at a position lower than the sieve plate 815. A pull rod 96 is fixedly connected to one side of the sealing baffle 95. A T-shaped iron block 97 is fixedly connected to the surface of the pull rod 96. Magnets 98 are symmetrically fixedly connected to a rectangular groove on the surface of the base 1 that matches the T-shaped iron block 97, so as to facilitate the removal of grass from the sieve plate 815 from the screening frame 813.

[0050] Working principle: When using this seed harvesting device, first push the push handle 3 to push the whole device to the vicinity of the lawn to be harvested. Then, according to the actual height of the lawn, start the hydraulic cylinder 5 at the same time. Use the hydraulic cylinder 5 to adjust the height of the base 1 from the lawn, thereby changing the cutting position of the circular cutter 4. After preparation, the user can start the mowing motor 10 and the drive motor 87 at the same time.

[0051] During this process, the mowing motor 10 drives the circular cutter 4 to rotate at high speed to cut the low lawn. During the cutting process, the centrifugal force generated by the rotation of the circular cutter 4 causes the cut lawn to be thrown into the conveyor hood 71.

[0052] At the same time, the drive motor 87 can drive the first rotating rod 85 to rotate, the first rotating rod 85 then drives the first pulley 82 to rotate, the first pulley 82 then drives the second pulley 81 to rotate via the belt 83, the second pulley 81 then drives the conveying rod 73 to rotate, the conveying rod 73 then drives the sprocket 74 on its surface to rotate, the sprocket 74 then drives the other sprockets 74 to rotate synchronously via the chain 75, and the chains 75 on both sides drive the conveyor bars 76 to move synchronously, thereby conveying the lawn that has entered the conveyor cover 71 towards the screening frame 813;

[0053] During this process, the lawn is conveyed to the screening frame 813 by the conveyor bar 76 and falls onto the surface of the screen plate 815. The drive motor 87 starts and drives the first rotating rod 85 to rotate. The cam 88 on the first rotating rod 85 rotates accordingly. The rotation of the cam 88 causes the T-shaped rod 89 in contact with it to slide up and down in the rectangular frame 84. The comb 811 connected to the bottom end of the T-shaped rod 88 moves up and down in the cooperation of the second return spring 810. The elastic bristles of the comb 811 comb the lawn during the conveying process, causing the grass seeds to fall off the grass stems.

[0054] At the same time, the reciprocating squeezing of the sieve plate 815 by the comb 811 can increase the vibration amplitude of the sieve plate 815, allowing grass seeds to have more opportunities to pass through the sieve holes. Grass seeds in the lawn can come into contact with the sieve holes from different angles, which is more conducive to the separation of grass seeds, thereby improving the efficiency of seed screening. The filtered seeds fall into the bottom of the screening frame 813 under the action of gravity, while the stems and leaves remain on the surface of the sieve plate 815.

[0055] When it is necessary to discharge the screened grass seeds in the screening frame 813, open the rubber stopper plate 99 and start the discharge motor 94. The discharge motor 94 drives the screw 92 to rotate, and the pusher plate 93, which is threaded onto the screw 92, slides inside the screening frame 813, pushing the seeds out from the seed discharge groove on one side of the screening frame 813. Meanwhile, impurities on the sieve plate 815 can be cleaned out from the impurity discharge port by pulling the sealing baffle 95. When not being cleaned, the sealing baffle 95 is kept closed by the attraction between the T-shaped iron block 97 and the magnet 98 on the base 1.

[0056] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A low-growing turfgrass seed harvesting device, comprising a base (1), a power supply (2), a push handle (3), a circular cutter (4), a shock-absorbing wheel (6), and a mowing motor (10), characterized in that: The shock-absorbing wheel (6) is set on the bottom surface of the base (1), and the shock-absorbing wheel (6) is located at the four corners of the bottom surface of the base (1). The push handle (3) is fixedly connected to one side surface of the base (1). The power supply (2) is fixedly installed on the surface of the base (1), and the connection position of the power supply (2) is close to the push handle (3). The lawn mowing motor (10) is fixedly connected to the surface of the base (1), and the connection position of the lawn mowing motor (10) is far away from the power supply (2). The output end of the lawn mowing motor (10) is fixedly connected to a circular cutter (4), and the circular cutter (4) is located below the base (1). The base (1) is provided with a conveying assembly (7) on its surface. The conveying assembly (7) includes a conveying cover (71), a limiting plate (72) and a lawn conveying unit. The conveying cover (71) is fixedly connected to the upper surface of the base (1). The limiting plate (72) is symmetrically fixedly connected to the inner wall of the conveying cover (71). The lawn conveying unit is located inside the conveying cover (71). A grass seed combing and screening assembly (8) is provided between the conveyor hood (71) and the base (1). The grass seed combing and screening assembly (8) includes a screening frame (813), a strip plate (814), and a grass seed screening unit. The screening frame (813) is fixedly connected to the outlet position of the conveyor hood (71). The screening frame (813) is fixedly connected to the base (1). The strip plate (814) is symmetrically fixedly connected inside the screening frame (813). The grass seed screening unit is set inside the screening frame (813). The screening frame (813) is also provided with a discharge assembly (9). The discharge assembly (9) includes a screw (92), a discharge motor (94), and a pusher unit. The screw (92) is rotatably connected to the inner wall of the screening frame (813). The discharge motor (94) is fixedly connected to the surface of the screening frame (813). The output end of the discharge motor (94) is fixedly connected to the screw (92) on the same axis. The pusher unit is located inside the screening frame (813).

2. The low-growing turfgrass seed harvesting device according to claim 1, characterized in that: The lawn conveying unit includes a conveying rod (73), a sprocket (74), a chain (75), and conveying strips (76). The two limiting plates (72) are equidistantly rotatably connected to the conveying rod (73). Each conveying rod (73) has a sprocket (74) symmetrically fixedly sleeved on its shaft. The sprocket (74) is located near both ends of the conveying rod (73). The three sprockets (74) on the same side are connected by a chain (75). Multiple conveying strips (76) are equidistantly fixedly connected to the surfaces of the chains (75) on both sides.

3. The low-growing turfgrass seed harvesting device according to claim 2, characterized in that: The grass seed screening unit includes a sieve plate (815), a telescopic slide bar (816), and a first return spring (817). There is a height difference between the two strip plates (814), and multiple telescopic slide bars (816) are fixedly connected at equal intervals on the surface of each strip plate (814). The top end of the telescopic slide bar (816) is fixedly connected to the sieve plate (815). The sieve plate (815) is inclined relative to the strip plate (814). The first return spring (817) is fixedly connected at equal intervals between the sieve plate (815) and the strip plate (814). The first return spring (817) is sleeved on the rod of the telescopic slide bar (816).

4. The low-growing turfgrass seed harvesting device according to claim 3, characterized in that: The conveyor cover (71) has an installation slot (77) on its surface, and a rectangular frame (84) is fixedly connected in the installation slot (77). A first rotating rod (85) is rotatably connected to the inner wall of the rectangular frame (84). A drive motor (87) is fixedly installed on the surface of the rectangular frame (84). The end of the first rotating rod (85) is coaxially fixedly connected to the output shaft of the drive motor (87). A cam (88) is coaxially fixedly sleeved on the rod body of the first rotating rod (85). The inner bottom surface of the rectangular frame (84) A T-shaped rod (89) is slidably connected, the bottom end of the T-shaped rod (89) extends to the lower side of the rectangular frame (84), and a comb (811) is fixedly connected to the T-shaped rod (89). The comb (811) is set directly above the screening frame (813). A second return spring (810) is sleeved on the body of the T-shaped rod (89). The upper end of the second return spring (810) abuts against the top of the T-shaped rod (89), and the lower end of the second return spring (810) abuts against the inner bottom surface of the rectangular frame (84).

5. The low-growing turfgrass seed harvesting device according to claim 4, characterized in that: Each insert of the comb (811) is fixedly connected to an elastic bristle (812) at the bottom end.

6. The low-growing turfgrass seed harvesting device according to claim 5, characterized in that: One end of the first rotating rod (85) passes through the rectangular frame (84), and one end of the first rotating rod (85) extends to the outside of the rectangular frame (84). The end of the first rotating rod (85) extending to the outside of the rectangular frame (84) is coaxially fixedly connected to a first pulley (82). A U-shaped plate (86) is rotatably connected to the surface of the first rotating rod (85). The U-shaped plate (86) and the conveying cover (71) are fixedly connected. One end of the conveying rotating rod (73) is coaxially fixedly connected to a second pulley (81). A belt (83) is connected between the wheel bodies of the second pulley (81) and the first pulley (82).

7. The low-growing turfgrass seed harvesting device according to claim 1, characterized in that: Hydraulic cylinders (5) are fixedly installed at the four corners of the lower surface of the base (1). The hydraulic cylinders (5) and the shock absorbers (6) are arranged in a one-to-one correspondence, and the output end of the hydraulic cylinder (5) is fixedly connected to the shock absorber (6).

8. The low-growing turfgrass seed harvesting device according to claim 1, characterized in that: The feeding unit includes a fixed block (91), a feeding plate (93), and a rubber stopper plate (99). A seed discharge groove is provided on one side surface of the screening frame (813), and a fixed block (91) is fixedly connected in the seed discharge groove. A screw (92) is rotatably connected between the fixed block (91) and the screening frame (813). The feeding plate (93) is threaded onto the shaft of the screw (92). The feeding plate (93) is slidably connected to the screening frame (813), and the size of the feeding plate (93) is adapted to the size of the screening frame (813). A rubber stopper plate (99) is detachably connected in the seed discharge groove provided on the surface of the screening frame (813).

9. The low-growing turfgrass seed harvesting device according to claim 8, characterized in that: A sealing baffle (95) is slidably connected to the discharge port opened on one side of the screening frame (813) at the lower side of the sieve plate (815). A pull rod (96) is fixedly connected to one side of the sealing baffle (95). A T-shaped iron block (97) is fixedly connected to the surface of the pull rod (96). Magnets (98) are symmetrically fixedly connected to the rectangular groove opened on the surface of the base (1) that matches the T-shaped iron block (97).

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