Grass seed spreading device for vegetation restoration

Abstract

The present application relates to the technical field of agricultural equipment, in particular to a grass seed sowing device for vegetation restoration, which comprises a machine box, a material tank installed on the machine box, a sowing mechanism arranged in the machine box and used for sowing grass seeds, a discharging pipe arranged in the machine box below a discharging port of the material tank and used for feeding the grass seeds in the material tank into the sowing mechanism, and a feeding mechanism arranged in the machine box between the material tank and the discharging pipe. The present application converts the rotation of the sowing mechanism into the reciprocating translation of the baffle by the cooperation of the feeding mechanism, the linkage mechanism, the electromagnet base and the magnetic metal piece, forms a feeding channel by the periodic coincidence of the discharging port and the discharging port of the material tank, realizes the intermittent feeding of the grass seeds, avoids uneven sowing, controls the power-off of the electromagnet base when encountering complex terrain, resets the baffle to block the discharging port under the action of the spring, cuts off the feeding without stopping the sowing mechanism, avoids the retention and accumulation of the grass seeds, saves the restart time, and improves the work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural equipment, in particular to a grass seed sowing device for vegetation restoration. BACKGROUND

[0002] Vegetation restoration refers to the use of scientific methods to carry out targeted ecological restoration work on vegetation areas damaged or degraded by natural factors or human activities. By selecting suitable plant species and using scientific planting and reasonable management and protection measures, vegetation community structure is reconstructed, vegetation coverage is improved, and the self-regulating ability of the ecological system is enhanced, thereby improving the regional ecological environment. Grass seed sowing is a common restoration method in vegetation restoration. By uniformly sowing suitable grass seeds on damaged or degraded land, the ground can be quickly covered, soil erosion can be reduced, and a foundation for vegetation restoration can be laid. At the same time, herbaceous plants grow rapidly, which can improve soil structure and promote the gradual succession of vegetation communities and the restoration and stability of the ecological system.

[0003] In this technical field, a sowing machine is usually used to sow grass seeds. Common centrifugal sowing machines on the market mainly consist of a tank, a rotating disc, and a driving unit. Grass seeds are fed from the bottom of the tank through the feed port to the rotating disc, and the rotating disc is driven to rotate by the driving unit to uniformly throw out the grass seeds, thereby achieving uniform sowing of the grass seeds.

[0004] The traditional sowing machine does not have start-stop control effect for feeding. When encountering a sowing area with terrain undulations, large changes in slope, or local obstacles, in order to avoid waste of grass seeds, the rotating disc can only be stopped to stop sowing of the grass seeds. However, when the rotating disc is not rotating, grass seeds still fall from the bottom of the tank through the feed port to the rotating disc. Some of the grass seeds fall from the rotating disc to the ground, causing waste. At the same time, most of the grass seeds will accumulate in the narrow space between the feed port and the rotating disc, which is prone to blockage. When sowing next time, the grass seeds need to be cleared by shaking or using tools to pick and loosen, which is time-consuming and laborious. SUMMARY

[0005] The present application aims to provide a grass seed sowing device for vegetation restoration with controllable grass seed feeding start-stop, to solve the technical problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions.

[0007] The utility model provides a grass seed sowing device for vegetation restoration, which comprises a machine box, a material tank installed on the machine box, a sowing mechanism arranged in the machine box and used for sowing grass seeds, a discharging pipe arranged in the machine box and below a discharging port of the material tank and used for feeding the grass seeds in the material tank into the sowing mechanism, a feeding mechanism arranged in the machine box and between the material tank and the discharging pipe, the feeding mechanism comprising a pair of sliding rails installed in the machine box and a baffle installed between the two sliding rails and having a discharging port thereon, a linkage mechanism arranged in the machine box and used for converting the rotation of the sowing mechanism into horizontal movement and driving the baffle to reciprocatingly translate and adjust, forming a feeding channel when the discharging port of the baffle and the discharging port of the material tank coincide, achieving periodic feeding, the linkage mechanism being provided with an electromagnet seat, the side of the baffle being provided with a magnetic metal part that magnetically attracts the electromagnet seat to realize the connection between the baffle and the linkage mechanism, the electromagnet seat being separated from the magnetic metal part when the power supply of the electromagnet seat is cut off, the baffle being in a reset state and continuously blocking the discharging port of the material tank to stop feeding.

[0008] Preferably, a water tank is installed on the machine box, a flow guide mechanism is arranged in the machine box and below the water tank, and a nozzle is arranged at the bottom of the machine box and in communication with the flow guide mechanism, so that the water in the water tank is continuously supplied to the nozzle under the driving action of the reciprocating translation of the linkage mechanism.

[0009] Preferably, the feeding mechanism further comprises a side plate and a spring, the side plate being fixed to one end of the two sliding rails, and the spring being horizontally arranged between the side plate and the end of the baffle away from the magnetic metal part, one end of the spring being fixed to the side plate and the other end being fixed to the baffle.

[0010] Preferably, the sowing mechanism comprises a cover body, a rotating disc, a baffle and a driving device, the cover body being fixed in the machine box, the outer peripheral wall of the cover body having a sowing port for throwing grass seeds, the rotating disc being rotatably installed at the bottom of the cover body, a circular boss being fixed to the top of the rotating disc and in the cover body, a plurality of baffles being annularly arranged on the outer peripheral wall of the boss, and a temporary storage cavity being formed between adjacent two baffles, the driving device being arranged below the rotating disc to drive the rotating disc to rotate.

[0011] Preferably, the top of the discharging pipe has a normal funnel-shaped portion, the bottom of the discharging pipe has an inverted funnel-shaped portion, the baffle is arranged between the normal funnel-shaped portion and the discharging port of the material tank and is in sliding fit with the top end of the normal funnel-shaped portion and the end of the discharging port of the material tank, respectively, the normal funnel-shaped portion is sufficient to cover the feeding channel, the inverted funnel-shaped portion is fixedly communicated with the cover body, the top of the boss is fixed with a blocking body that has a diameter decreasing upward, the blocking body extends into the inverted funnel-shaped portion and is used for uniformly guiding the grass seeds into each temporary storage cavity.

[0012] Preferably, an air inlet cylinder that is in communication with the cover body is fixed to the cover body at a position corresponding to the sowing port, a fan is installed in the air inlet cylinder, the fan is used for guiding external air into the temporary storage cavity close to the sowing port and blowing the air out of the sowing port, and a filter screen is installed above the fan in the air inlet cylinder.

[0013] Preferably, the driving device comprises a driving motor, a driving gear and a gear ring, the driving motor is fixed in the cabinet, the driving gear is fixed on the end of the output shaft of the driving motor, and the gear ring is fixed on the bottom of the rotating disc and is engaged with the driving gear.

[0014] Preferably, the linkage mechanism comprises a disc, a traction rod, a frame-shaped sleeve plate and a traction frame, the bottom of the rotating disc is fixed with a vertically extending first shaft rod, the bottom end of the first shaft rod is connected with a second shaft rod through a speed reduction gear set, the disc is fixed on the bottom end of the second shaft rod, the traction rod is fixed eccentrically on the lower surface of the disc, the frame-shaped sleeve plate is sleeved on the traction rod in a limiting mode, the extending direction of the frame-shaped sleeve plate is perpendicular to the translation direction of the baffle, the cabinet is slidingly installed with a connecting arm, one end of the connecting arm is fixed perpendicularly with the frame-shaped sleeve plate, the other end of the connecting arm is installed with a vertically extending traction frame, the side of the traction frame is fixed with a horizontally extending connecting rod connected with the flow guide mechanism, and the electromagnet base is fixed on the top end of the traction frame.

[0015] Preferably, the flow guide mechanism comprises a cylinder, a piston, a liquid inlet pipe, a three-way joint A, a liquid outlet pipe and a three-way joint B, the cylinder is fixed in the cabinet, the piston is matched and installed in the cylinder, a guide rod is fixed on one side of the piston and slidingly penetrates to the outside of the cylinder in a horizontal mode and is fixedly connected with the connecting rod, the top of the two ends of the cylinder is respectively communicated with the liquid inlet pipes, the two output ports of the three-way joint A are respectively communicated with the two liquid inlet pipes, the input port of the three-way joint A is communicated with the bottom of the water tank through a connecting pipe A, the liquid inlet one-way valves are installed in the two liquid inlet pipes close to the cylinder, the bottom of the two ends of the cylinder is respectively communicated with the liquid outlet pipes, the two input ports of the three-way joint B are respectively communicated with the two liquid outlet pipes, the output port of the three-way joint B is communicated with the spray head through a connecting pipe B, and the liquid outlet one-way valves are installed in the two liquid outlet pipes close to the cylinder.

[0016] Preferably, the side of the baffle is fixed with a U-shaped seat, a micro electric push cylinder extending along the sliding direction of the baffle is fixed on the U-shaped seat.

[0017] Compared with the prior art, the application has the following beneficial effects:

[0018] Through the cooperation of the feeding mechanism, the linkage mechanism, the electromagnet base and the magnetic metal piece, the rotation of the sowing mechanism is converted into the reciprocating translation of the baffle, the periodic coincidence of the feeding opening and the outlet opening of the material tank forms a feeding channel, intermittent feeding of the grass seeds is realized, uneven sowing is avoided, when encountering complex terrain, the electromagnet base is controlled to be powered off, the baffle is reset to block the outlet under the action of the spring, the feeding can be cut off without stopping the sowing mechanism, the grass seeds are prevented from being retained, accumulated and blocked, the restart time is saved, and the work efficiency is improved.

[0019] When the sowing mechanism rotates, the seeds in the temporary storage cavity are thrown out of the sowing opening by centrifugal force, and the fan introduces air to blow out from the sowing opening to form an air flow aid, so that the sowing range is expanded and uniformly distributed by double action. The conical structure of the blocking body guides the seeds to each temporary storage cavity, and the design of the ring array of the partition plate is evenly divided to avoid uneven feeding and gap retention.

[0020] The linkage mechanism converts the rotation of the sowing mechanism into horizontal reciprocating movement of the traction frame through the first shaft rod, the speed reduction gear set, the traction rod, and the frame-shaped sleeve plate, and synchronously drives the baffle feeding and the water pumping of the flow guide mechanism without additional driving. The flow guide mechanism adopts a double-channel structure to realize continuous water supply through the inlet one-way valve and the outlet one-way valve, avoiding intermittent spraying.

[0021] The position of the magnetic metal part is adjusted by the U-shaped seat and the micro electric push cylinder to change the overlapping area of the material outlet of the baffle reciprocating movement and the material outlet of the tank to realize stepless adjustment of the single feeding amount. When high-density sowing is required, the feeding channel is expanded, and when low-density sowing is required, the feeding channel is reduced, without the need to stop the machine to adapt to different sowing needs. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic view of the overall structure of the application.

[0023] Figure 2 It is Figure 1 another view of the structure shown.

[0024] Figure 3 It is a schematic view of the internal structure of the case in the application.

[0025] Figure 4 It is a schematic view of the structure shown. Figure 1

[0026] Figure 5 It is a schematic view of the feeding mechanism structure in the application.

[0027] Figure 6 It is Figure 5 an enlarged schematic view of the structure at A in the application.

[0028] Figure 7 It is Figure 4 a schematic view of the local structure of the structure shown.

[0029] Figure 8 It is Figure 7 another view of the structure shown.

[0030] Figure 9 It is a schematic view of the sowing mechanism structure in the application.

[0031] Figure 10 It is Figure 9 a cross-sectional schematic view of the structure shown.​

[0032] Figure 11 For Figure 9 Figure 2 is a schematic view of the structure cross section;

[0033] Figure 12 Figure 3 is a schematic view of the structure of the flow guide mechanism in the present application;

[0034] Figure 13 Figure 4 is a schematic view of the feeding channel formed by the bottom discharge port and the discharge port of the hopper.

[0035] In the figure: 1, machine case; 11, hopper; 12, water tank; 13, discharge pipe; 131, upright funnel-shaped part; 132, inverted funnel-shaped part; 14, spray head;

[0036] 2, feeding mechanism; 21, slide rail; 22, baffle; 23, discharge port; 231, feeding channel; 24, side plate; 25, spring;

[0037] 3, sowing mechanism; 31, cover body; 32, sowing port; 33, rotating disc; 34, boss; 341, blocking body; 35, partition plate; 36, temporary storage cavity; 37, driving device; 371, driving motor; 372, driving gear; 373, gear ring;

[0038] 4, linkage mechanism; 41, first shaft rod; 42, speed reduction gear set; 43, second shaft rod; 44, disc; 45, traction rod; 46, frame-shaped sleeve plate; 47, connecting arm; 48, traction frame; 49, connecting rod;

[0039] 5, flow guide mechanism; 51, cylinder body; 52, piston; 53, guide rod; 54, liquid inlet pipe; 541, liquid inlet one-way valve; 55, three-way joint A; 56, connecting pipe A; 57, liquid outlet pipe; 571, liquid outlet one-way valve; 58, three-way joint B; 59, connecting pipe B;

[0040] 6, air inlet cylinder; 61, fan; 62, filter screen;

[0041] 7, electromagnet base;

[0042] 8, magnetic metal part; 81, U-shaped base; 82, micro electric push cylinder. DETAILED DESCRIPTION

[0043] Please refer to Figures 1-13 The present application provides a grass seed sowing device for vegetation repair, which is described below in combination with the drawings of the embodiments of the present application.

[0044] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "connect", "mount", should be interpreted broadly, for example, "connect" can be detachable connection, but also can be non-detachable connection, can be direct connection, but also can be indirect connection through intermediate medium. In addition, "communication" can be direct communication, but also can be indirect communication through intermediate medium. Among them, "fixed" refers to the relative position relationship of each other after connection does not change. The orientation language mentioned in the embodiments of the present application, such as "inner", "outer", "top", "bottom", etc., is only the direction of the drawing, therefore, the orientation language used is for better, more clearly illustrate and understand the embodiments of the present application, and is not indicative or implied that the device or element referred to must have a particular orientation, constructed and operated in a particular orientation, therefore, can not be understood as a limitation on the embodiments of the present application.

[0045] In the embodiments of the present application, the terms "first", "second" are only for descriptive purposes, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0046] In the embodiments of the present application, "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0047] In this specification, the reference "one embodiment" or "some embodiments" means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in other some embodiments" and the like appearing in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0048] The herb seed scattering device comprises a machine box 1 and a material tank 11 installed on the machine box 1, the machine box 1 is provided with a scattering mechanism 3 for scattering the herb seeds, a discharging pipe 13 is arranged below the discharging port of the material tank 11 in the machine box 1, and is used for feeding the herb seeds in the material tank 11 into the scattering mechanism 3, and a feeding mechanism 2 is arranged between the material tank 11 and the discharging pipe 13 in the machine box 1, wherein the feeding mechanism 2 comprises a pair of slide rails 21 fixed in the machine box 1 through supports and a baffle 22 installed between the two slide rails 21 and provided with a discharging port 23.

[0049] The machine box 1 is provided with a linkage mechanism 4 for converting the rotation of the scattering mechanism 3 into horizontal movement, and for driving the baffle 22 to reciprocatingly translate and adjust, as shown in the drawings, when the discharging port 23 overlaps with the discharging port of the bottom of the material tank 11, a feeding channel 231 is formed to realize periodic feeding. Figure 13

[0050] During the specific herb seed scattering, the herb seeds are fed into the material tank 11, the linkage mechanism 4 is used for converting the rotating action in the scattering mechanism 3 into reciprocating horizontal linear motion, thereby driving the baffle 22 to reciprocatingly translate and adjust along the slide rails 21, the position of the discharging port 23 changes constantly during the reciprocating movement of the baffle 22, and the position changes constantly between overlapping with the discharging port of the bottom of the material tank 11 and not overlapping with the discharging port of the bottom of the material tank 11, when the discharging port 23 overlaps with the discharging port of the bottom of the material tank 11, the feeding channel 231 is formed, the herb seeds in the material tank 11 fall into the discharging pipe 13 through the feeding channel 231, and are fed into the scattering mechanism 3 through the discharging pipe 13, thereby realizing feeding, and the scattering mechanism 3 centrifugally throws the herb seeds to realize the scattering of the herb seeds.

[0051] When the discharging port 23 does not overlap with the discharging port of the bottom of the material tank 11, the baffle 22 blocks the discharging port of the bottom of the material tank 11, and the herb seeds in the material tank 11 cannot fall into the discharging pipe 13, that is, the feeding of the scattering mechanism 3 is stopped, thereby realizing periodic feeding of the herb seeds by means of the reciprocating movement of the baffle 22, and realizing interval feeding, which is suitable for the scattering of the scattering mechanism 3, avoids the over-accumulation of the herb seeds caused by continuous feeding, and ensures the uniformity of the scattering of the herb seeds.

[0052] As shown in the drawings, the feeding mechanism 2 further comprises a side plate 24 and a spring 25, the side plate 24 is fixed at one end of the two slide rails 21, and the spring 25 is horizontally arranged between the end of the baffle 22 away from the magnetic metal piece 8 and the side plate 24, one end of the spring 25 is fixed with the side plate 24, and the other end is fixed with the baffle 22. Figure 5 Figure 6

[0053] ​​​The linkage mechanism 4 is provided with an electromagnet base 7, and the side of the baffle plate 22 is provided with a magnetic metal piece 8 which is magnetically attracted to the electromagnet base 7 to realize the connection of the baffle plate 22 and the linkage mechanism 4. When the power supply of the electromagnet base 7 is controlled to be turned off, the electromagnet base 7 is separated from the magnetic metal piece 8, the baffle plate 22 is in a reset state, and the bottom discharge port of the material tank 11 is continuously blocked to stop the feeding.

[0054] When the power supply of the electromagnet base 7 is controlled to be turned on, the linkage mechanism 4 is connected with the baffle plate 22 under the magnetic attraction of the electromagnet base 7 and the magnetic metal piece 8. When the spreading mechanism 3 operates, the baffle plate 22 is reciprocally moved by the linkage mechanism 4 to realize periodic feeding. The magnetic attraction of the electromagnet base 7 is sufficient to overcome the resistance of the baffle plate 22 when sliding. When the baffle plate 22 moves to the side away from the side plate 24 along the slide rail 21, the spring 25 is elastically stretched. When the baffle plate 22 slides to the side of the side plate 24 to reset, the spring 25 is also reset at the same time.

[0055] When the terrain is uneven, the slope changes greatly, or there are local obstacles, etc., the staff controls the power supply of the electromagnet base 7 to be turned off. At this time, the magnetic force of the electromagnet base 7 disappears and cannot be magnetically attracted to the magnetic metal piece 8. Further, the linkage mechanism 4 cannot move the baffle plate 22. In addition, under the restraint of the spring 25, the baffle plate 22 is continuously in a reset state and blocks the bottom discharge port of the material tank 11 to stop the feeding of the spreading mechanism 3, thereby avoiding the waste of grass seeds. In addition, the spreading mechanism 3 does not need to be stopped, thereby saving the waiting time of restarting after stopping and improving the efficiency.

[0056] After leaving the abnormal area, the power supply of the electromagnet base 7 is controlled to be turned on again. The magnetic attraction between the electromagnet base 7 and the magnetic metal piece 8 drives the baffle plate 22 to continue to reciprocally move, thereby resuming the periodic feeding work.

[0057] As shown in Figure 9 and Figure 10 , the bottom of the discharge pipe 13 has an inverted funnel-shaped portion 132, and the baffle plate 22 is arranged between the upright funnel-shaped portion 131 and the bottom discharge port of the material tank 11 and is in sliding fit with the top end of the upright funnel-shaped portion 131 and the end of the bottom discharge port of the material tank 11, respectively. This avoids the existence of gaps between the baffle plate 22 and the upright funnel-shaped portion 131 and between the baffle plate 22 and the bottom discharge port of the material tank 11, thereby preventing the grass seeds from leaking out. In addition, the upright funnel-shaped portion 131 is sufficient to cover the feeding channel 231, thereby preventing the grass seeds discharged from the feeding channel 231 from falling to a place outside the upright funnel-shaped portion 131 and causing the grass seeds to leak out.

[0058] As shown in Figure 2 , Figure 3 and Figure 4The water tank 12 is arranged on the case 1, and a flow guide mechanism 5 is arranged below the water tank 12 in the case 1. A spray head 14 is arranged at the bottom of the case 1 and is in communication with the flow guide mechanism 5. The flow guide mechanism 5 is triggered to operate under the reciprocating translation driving of the linkage mechanism 4, so as to continuously supply the water in the water tank 12 to the spray head 14, and realize the spraying of water after the grass seeds are scattered.

[0059] It is worth mentioning that the grass seed scattering device can be loaded on an agricultural vehicle, and moves with the agricultural vehicle to realize mobile operation. In addition, the grass seed scattering device can also be loaded on a hand-held self-driven trolley, and moves through the hand of a worker to realize mobile operation. The specific loading mode adopts the prior art, and will not be described in detail herein.

[0060] Please refer to Figures 7-11 The scattering mechanism 3 includes a cover body 31, a rotating disc 33, a baffle 35, and a driving device 37. The cover body 31 is fixed in the case 1 through a support. The outer peripheral wall of the cover body 31 is provided with a scattering port 32 for throwing the grass seeds. The inverted funnel-shaped part 132 is fixedly communicated with the cover body 31. The rotating disc 33 is rotatably arranged at the bottom of the cover body 31. The rotating disc 33 is provided with a circular boss 34 at the top and in the cover body 31. The side of the case 1 is provided with an opening corresponding to the position of the cover body 31, so that the grass seeds can be thrown out of the case 1.

[0061] The outer peripheral wall of the boss 34 is arranged with a plurality of baffles 35 in an annular array. The adjacent two baffles 35 form a temporary storage cavity 36. The driving device 37 is arranged below the rotating disc 33 to drive the rotating disc 33 to rotate.

[0062] The driving device 37 includes a driving motor 371, a driving gear 372, and a gear ring 373. The driving motor 371 is fixed in the case 1 through a support. The driving gear 372 is fixed on the output shaft end of the driving motor 371. The gear ring 373 is fixed at the bottom of the rotating disc 33 and is in meshing correspondence with the driving gear 372.

[0063] When the scattering mechanism 3 operates, the driving motor 371 works, the output shaft drives the driving gear 372 to rotate, the rotating driving gear 372 drives the gear ring 373 and the rotating disc 33 to rotate. The grass seeds in the feeding pipe 13 fall into each temporary storage cavity 36 in the cover body 31. When the rotating disc 33 rotates, each baffle 35 pushes the grass seeds to rotate synchronously. When the temporary storage cavity 36 is aligned with the scattering port 32, the grass seeds are thrown out of the scattering port 32 under the action of centrifugal force, the grass seeds are scattered, and the scattering range of the grass seeds is fan-shaped.

[0064] The outer peripheral wall of the rotating disc 33 is movably attached to the inner edge wall of the cover body 31 to avoid the existence of a gap between the outer peripheral wall of the rotating disc 33 and the inner edge wall of the cover body 31, which can cause the grass seeds to fall through. Meanwhile, the end of the partition plate 35 is flush with the outer peripheral wall of the rotating disc 33, and the top of each partition plate 35 is fixed to the inner top wall of the cover body 31 to avoid the flow of the grass seeds between the temporary storage cavities 36, which can cause uneven distribution.

[0065] As shown in Figure 10 , the top of the boss 34 is fixed with a blocking body 341 which has a diameter that decreases upward. The blocking body 341 has a bullet shape, and extends into the inverted funnel-shaped portion 132. When the grass seeds in the feeding pipe 13 fall into the cover body 31, the top arc slope of the blocking body 341 can uniformly guide the flow of the grass seeds into each temporary storage cavity 36, so as to ensure that the amount of the grass seeds is as evenly distributed as possible in each temporary storage cavity 36.

[0066] As shown in Figure 9 and Figure 10 , the top of the cover body 31 is fixed with an air inlet cylinder 6 which is in communication with the cover body 31 at a position corresponding to the spreading port 32. The air inlet cylinder 6 is provided with a fan 61. The fan 61 is used to guide the external air into the temporary storage cavity 36 near the spreading port 32, and blow out from the spreading port 32. The air inlet cylinder 6 is provided with a filter screen 62 above the fan 61.

[0067] Through the operation of the filter screen 62, the external air is sucked into the air inlet cylinder 6, and is guided into the cover body 31, and is finally blown out from the spreading port 32 to form a fan-shaped wind field. The fan-shaped wind field serves as a compensation for the centrifugal throwing of the grass seeds, and realizes a combined spreading effect of the centrifugal airflow acceleration of the grass seeds. The combined spreading effect not only ensures the uniformity of the spreading, but also improves the spreading coverage. In addition, the centrifugal force generated by the rotation of the rotating disc 33 throws the grass seeds outward, and the acceleration of the airflow is beneficial to the exhaustion of the grass seeds in each temporary storage cavity 36.

[0068] Please refer to FIGS. 1, 2 and Figure 8 , the linkage mechanism 4 includes a disc 44, a traction rod 45, a frame-shaped sleeve plate 46 and a traction frame 48. The bottom of the rotating disc 33 is fixed with a vertical first shaft 41. The bottom end of the first shaft 41 is transmissionally connected with a second shaft 43 through a reduction gear set 42. Specifically, the reduction gear set 42 is a planetary gear set with a housing, and is fixed in the machine box 1 through a support. The bottom end of the first shaft 41 is fixed with the input part of the reduction gear set 42, and the top end of the second shaft 43 is fixed with the output part of the reduction gear set 42. The planetary gear set is used as the reduction gear set 42, which can ensure that the first shaft 41 and the second shaft 43 can be coaxially arranged, and further ensure the stability during transmission.

[0069] The disc 44 is fixed on the bottom end of the second shaft 43. The traction rod 45 is eccentrically fixed on the lower surface of the disc 44. The frame-shaped sleeve plate 46 is limitingly sleeved on the traction rod 45. The extension direction of the frame-shaped sleeve plate 46 is perpendicular to the translation direction of the baffle 22.

[0070] The cabinet 1 is slidably mounted with a connecting arm 47 through a support, one end of the connecting arm 47 is fixed with the frame-shaped sleeve plate 46 in a vertical manner, the other end is mounted with a vertical extension traction frame 48, the traction frame 48 is fixed with a horizontal extension connecting rod 49 connected with the flow guide mechanism 5, the connecting rod 49 is slidably mounted in the cabinet 1, and the electromagnet base 7 is fixed on the top end of the traction frame 48.

[0071] When the rotating disc 33 rotates, the first shaft rod 41 rotates synchronously, the first shaft rod 41 drives the second shaft rod 43 and the disc 44 to rotate at a low speed under the deceleration of the deceleration gear set 42, with the rotation of the disc 44, the position of the traction rod 45 changes periodically, under the limiting cooperation of the traction rod 45 and the frame-shaped sleeve plate 46 and the sliding limiting action of the connecting arm 47, the traction rod 45 can drive the frame-shaped sleeve plate 46, the connecting arm 47 and the traction frame 48 to reciprocatingly move as a whole, so as to convert the rotation of the rotating disc 33 into reciprocating horizontal movement, thereby providing driving for the sliding adjustment of the baffle 22.

[0072] Please refer to Figure 4 and Figure 12 , the flow guide mechanism 5 includes a cylinder body 51, a piston 52, a liquid inlet pipe 54, a three-way joint A 55, a liquid outlet pipe 57 and a three-way joint B 58, the cylinder body 51 is fixed in the cabinet 1 through a support, the piston 52 is matchedly installed in the cylinder body 51, a guide rod 53 is fixed on one side of the piston 52 and slidably penetrates to the outside of the cylinder body 51 in a horizontal manner and is fixedly connected with the connecting rod 49, the cylinder body 51 is respectively communicated with the liquid inlet pipe 54 at the top of both ends, the two output ports of the three-way joint A 55 are respectively communicated with the two liquid inlet pipes 54, the input port of the three-way joint A 55 is communicated with the bottom of the water tank 12 through a connecting pipe A 56, and the liquid inlet one-way valve 541 is installed in each of the two liquid inlet pipes 54 close to the cylinder body 51.

[0073] The cylinder body 51 is respectively communicated with the liquid outlet pipe 57 at the bottom of both ends, the two input ports of the three-way joint B 58 are respectively communicated with the two liquid outlet pipes 57, the output port of the three-way joint B 58 is communicated with the spray head 14 through a connecting pipe B 59, the liquid outlet one-way valve 571 is installed in each of the two liquid outlet pipes 57 close to the cylinder body 51, and each of the two output ports of the three-way joint A 55 has a one-way valve with a flow direction from the three-way joint A 55 to the liquid inlet pipe 54, and each of the two input ports of the three-way joint B 58 has a one-way valve with a flow direction from the liquid outlet pipe 57 to the three-way joint B 58.

[0074] As shown by corresponding arrows, Figure 12 the flow directions of the two liquid inlet one-way valves 541 are from the liquid inlet pipe 54 to the cylinder body 51, and the flow directions of the two liquid outlet one-way valves 571 are from the cylinder body 51 to the liquid outlet pipe 57.

[0075] When the traction frame 48 reciprocates, the guide rod 53 and the liquid inlet pipe 54 are driven to reciprocate synchronously by the connecting rod 49, when the piston 52 moves from one side of the cylinder 51 to the other side, the water in the water tank 12 can be sequentially sucked into the cylinder 51 on one side of the piston 52 through the connecting pipe A 56, the three-way joint A 55 and the liquid inlet pipe 54, at the same time, the water in the cylinder 51 on the other side of the piston 52 is pressed into the spray head 14 through the liquid outlet pipe 57, the three-way joint B 58 and the connecting pipe B 59, realizing the water supply by spraying.

[0076] Wherein, the two liquid inlet pipes 54, the two liquid inlet one-way valves 541 and the connecting pipe A 56 form a double-channel water inlet pipeline, and the two liquid outlet pipes 57, the two liquid outlet one-way valves 571 and the three-way joint B 58 form a double-channel water outlet pipeline, in a reciprocating cycle of the piston 52, no matter which side the piston 52 moves to, the water can be supplied to the spray head 14, thereby realizing the continuous spraying of the spray head 14, avoiding the existence of spraying gap, and improving the effect of water supply by spraying. In addition, the spray head 14 adopts a scattering type spray head, which scatters the sprayed water to all directions, forming a rain umbrella-like spraying effect, with large spraying coverage and uniform water supply.

[0077] The linkage mechanism 4 converts the rotation of the rotating disc 33 into reciprocating linear motion, which is used as the driving force for the reciprocating translation adjustment of the baffle 22 and the piston 52, without the need to set multiple drives, thereby reducing the cost investment.

[0078] Please refer to Figure 6 and Figure 13 The baffle 22 is fixed with a U-shaped seat 81 on the side, and the U-shaped seat 81 is fixed with a micro electric cylinder 82 extending along the sliding direction of the baffle 22. The magnetic metal piece 8 is fixed on the end of the telescopic rod of the micro electric cylinder 82. The magnetic metal piece 8 can be moved by the telescopic work of the micro electric cylinder 82, so that the distance between the traction frame 48 and the baffle 22 can be adjusted. In the case that the moving amount of the traction frame 48 is unchanged, the relative position of the baffle 22 is adjusted, so that the size of the feeding channel 231 is different, and the single feeding amount is adjusted to meet the needs of different density of grass seeds.

[0079] It is worth mentioning that the power supply, control mode and circuit connection of the driving motor 371, the electromagnet seat 7 and the micro electric cylinder 82 in the present application all adopt existing technologies. The control mode can adopt remote control and switch and the like, which is high in convenience. The specific structure, model and coefficient index of all components in the present application are self-contained technologies, which can be implemented as long as the beneficial effects can be achieved, so no more description is given. In addition, all the brackets involved in the present application are existing technologies, which are not marked in the specification, and a maintenance opening is provided on the case 1 to facilitate the maintenance of the internal components.

[0080] It will be obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments but can be implemented in other embodiments without departing from the scope of the application.

Claims

1. A grass seeding device for vegetation restoration, comprising a housing and a material tank mounted on the housing, characterized in that, Also includes: A seeding mechanism installed inside the casing is used to disperse grass seeds; A feed pipe located inside the machine housing and below the discharge port of the feed tank is used to feed grass seeds from the feed tank into the spreading mechanism. A feeding mechanism is provided inside the machine housing between the material tank and the feeding pipe. The feeding mechanism includes a pair of slide rails installed inside the machine housing and a baffle installed between the two slide rails and having a material discharge port thereon. A linkage mechanism is provided inside the casing. The linkage mechanism is used to convert the rotation of the spreading mechanism into horizontal movement, and to drive the baffle to reciprocate and adjust. When the material inlet and the material outlet at the bottom of the tank overlap, a feeding channel is formed to realize periodic feeding. The linkage mechanism is provided with an electromagnet base, and the side of the baffle is provided with a magnetic metal part that magnetically engages with the electromagnet base to realize the connection between the baffle and the linkage mechanism. The electromagnet base is de-energized, the electromagnet base separates from the magnetic metal part, the baffle is in the reset state, and the discharge port at the bottom of the material tank is continuously blocked to stop the material supply; A water tank is installed on the chassis, and a flow guiding mechanism is provided inside the chassis below the water tank; The bottom of the chassis is equipped with a nozzle that communicates with the flow guiding mechanism; The flow guiding mechanism is triggered by the reciprocating translational drive of the linkage mechanism to continuously supply water from the water tank to the nozzle; The spreading mechanism includes a cover, a turntable, a partition, and a driving device; The cover is fixed inside the machine housing, and the outer peripheral wall of the cover has a sowing port for throwing grass seeds. The turntable is rotatably mounted at the bottom of the cover, and a circular boss is fixed on the top of the turntable and inside the cover. Several partitions are arranged in a ring array on the outer peripheral wall of the boss. A temporary storage cavity is formed between two adjacent partitions; The driving device is located below the turntable to drive the turntable to rotate; The linkage mechanism includes a disc, a traction rod, a frame-shaped sleeve, and a traction frame; The bottom of the turntable is fixed with a vertically extending first shaft, and the bottom end of the first shaft is connected to a second shaft through a reduction gear set. The turntable is fixed on the bottom end of the second shaft. The traction rod is eccentrically fixed to the lower surface of the disc, and the frame-shaped sleeve is fitted onto the traction rod for limiting. The extending direction of the frame-shaped sleeve is perpendicular to the translation direction of the baffle. The chassis is slidably mounted with a connecting arm, one end of which is vertically fixed to the frame-shaped sleeve plate, and the other end is mounted with a vertically extending traction frame. The traction frame has a horizontally extending connecting rod fixed to its side and connected to the flow guiding mechanism. The electromagnet base is fixed to the top of the traction frame; The flow guiding mechanism includes a cylinder, a piston, a guide rod, an inlet pipe, a three-way connector A, an outlet pipe, and a three-way connector B; The cylinder is fixed inside the housing, and the piston is fitted inside the cylinder. The guide rod is fixed to one side of the piston and slides horizontally through the outside of the cylinder, and is fixedly connected to the connecting rod; The upper ends of the cylinder are respectively connected to liquid inlet pipes, the two output ports of the three-way connector A are respectively connected to the two liquid inlet pipes, and the input port of the three-way connector A is connected to the bottom of the water tank through connecting pipe A; Both of the aforementioned inlet pipes are equipped with inlet check valves near the cylinder body; The lower ends of the cylinder are respectively connected to liquid outlet pipes, the two inlet ports of the three-way connector B are respectively connected to the two liquid outlet pipes, and the outlet port of the three-way connector B is connected to the nozzle through the connecting pipe B; Both of the aforementioned liquid outlet pipes are equipped with a liquid outlet check valve near the cylinder.

2. The grass seeding device for vegetation restoration according to claim 1, characterized in that: The feeding mechanism also includes a side plate and a spring; The side plate is fixed to one end of both slide rails; The spring is horizontally positioned between the end of the baffle away from the magnetic metal part and the side plate; One end of the spring is fixed to the side plate, and the other end is fixed to the baffle.

3. The grass seeding device for vegetation restoration according to claim 1, characterized in that: The top of the feeding pipe has an upright funnel-shaped part, and the bottom has an inverted funnel-shaped part; The baffle is disposed between the upright funnel-shaped part and the bottom outlet of the material tank, and slides against the top of the upright funnel-shaped part and the end of the bottom outlet of the material tank, respectively. The upright funnel-shaped part is sufficient to cover the feeding channel. The inverted funnel-shaped part is fixedly connected to the cover body, and a baffle with a diameter that decreases towards the top is fixed on the top of the boss. The baffle extends into the inverted funnel-shaped part and is used to guide the grass seeds evenly into each of the temporary storage cavities.

4. The grass seeding device for vegetation restoration according to claim 1, characterized in that: An air inlet duct communicating with the inside of the hood is fixed at the position corresponding to the position of the dispensing port on the top of the hood. A fan is installed inside the air inlet duct. The fan is used to introduce outside air into the temporary storage chamber adjacent to the dispensing port and blow it out from the dispensing port. A filter screen is installed inside the air inlet duct above the fan.

5. The grass seeding device for vegetation restoration according to claim 1, characterized in that: The driving device includes a drive motor, a drive gear, and a gear ring; The drive motor is fixed inside the chassis, and the drive gear is fixed on the end of the output shaft of the drive motor; The gear ring is fixed to the bottom of the turntable and meshes with the drive gear.

6. The grass seeding device for vegetation restoration according to claim 1, characterized in that: A U-shaped seat is fixed to the side of the baffle, and a miniature electric push cylinder extending along the sliding direction of the baffle is fixed on the U-shaped seat; The magnetic metal component is fixed to the end of the telescopic rod of the miniature electric cylinder.

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