Multifunctional film mulching seeder

Abstract

The utility model belongs to the technical field of film mulching seeding machines, and particularly relates to a multifunctional film mulching seeding machine which comprises a crawler head, a fixing frame is fixedly arranged on the tail portion of the crawler head, and two supporting wheels are symmetrically arranged on the two sides of the tail portion of the fixing frame. A traction frame which is driven by a hydraulic cylinder to swing up and down at the rear end is hinged to the middle of the fixing frame. The land leveling mechanism, the film breaking mechanism for cutting off the mulching film and lifting the cut-off head of the mulching film and the two soil covering mechanisms for covering soil on the cut-off head of the mulching film are only driven by one hydraulic cylinder instead of additionally arranged hydraulic equipment, so that the purpose of reducing the equipment cost is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of film-covering seeders, and in particular relates to a multifunctional film-covering seeder. Background Art

[0002] Ground film covering has the functions of increasing soil temperature, suppressing soil temperature, improving fertilizer utilization rate and preventing fertilizer loss, improving soil physical properties, retaining water and moisture, and increasing light effect.

[0003] At present, the existing mulching seeders on the market all have the functions of mulching, covering with soil, and sowing. When laying the film, the whole bundle of mulch needs to be hung on the film hanging mechanism, and the main frame is pulled by a tractor. One person pulls out the head of the mulch and covers the head with soil to press and fix the head of the mulch, and then starts the tractor to lay the film. During the film laying process, the edges of both sides of the mulch are automatically covered with soil, and sowing is automatically completed during the film laying process. After a section of film laying is completed, the person following behind cuts the mulch and covers the end of the mulch with soil, and then repeats the above process to start laying and sowing the next section of mulch. During the process of mulching and sowing, the equipment cannot automatically cut off the mulch, and it needs to be done manually, which has high labor intensity and low efficiency.

[0004] The published "A fully automatic fertilizing, film laying, and sowing machine" with application number "201711267467.2" can solve the above problems. However, the film cutting mechanism for cutting the ground film and the film clamping mechanism for clamping the cut head of the ground film in the "A fully automatic fertilizing, film laying, and sowing machine" with application number 201711267467.2 are both controlled by a separate dedicated hydraulic cylinder as a driving structure, resulting in a high equipment cost.

[0005] The soil storage box in the "A fully automatic fertilization, film laying and sowing machine" with application number "201711267467.2" will continue to transport soil upward after storing a certain amount of soil. Although the excess soil that continues to be transported upward will be transferred to the edges of both sides of the film in the form of covering soil, serious dust will be caused in the process, causing the various operating structures of the equipment to be covered with soil, affecting the operating effect.

[0006] In addition, the existing mulching seeder is applicable to a limited width of mulch film, and is only suitable for laying mulch films of conventional width and covering the edges with soil on both sides, but cannot be used for laying mulch films of wider or narrower width and covering the edges with soil on both sides. Summary of the invention

[0007] In order to solve the above defects in the prior art, the present invention discloses a multifunctional film covering seeder, which is realized by adopting the following technical scheme.

[0008] A multifunctional film covering seeder comprises a crawler head, a fixed frame is fixedly installed at the rear of the crawler head, two supporting wheels are symmetrically installed on both sides of the rear of the fixed frame, a traction frame is hinged at the middle of the fixed frame, and the rear end swings up and down under the drive of a hydraulic cylinder, and two left-right symmetrical film covering mechanisms are installed on the second cross bar at the movable end of the traction frame, and the two film covering mechanisms are used to lay the ground film on the ground surface and cover the two side edges and the middle of the ground film with soil, a No. 1 support leg is arranged in the middle of the No. 2 cross bar, and two No. 1 film pressing wheels in contact with the ground film are rotatably arranged at the lower end of the No. 1 support leg, and the No. 1 film pressing wheel is circumferentially provided with a A plurality of spikes are arranged, and two sowing mechanisms are installed on the No. 1 cross bar at the tail of the fixed frame, and the two sowing mechanisms correspond to the front film covering mechanism one by one, and the film covering mechanism is connected to the corresponding sowing mechanism through a pulling mechanism, and the two sowing mechanisms are used to pierce the ground film on both sides of the ground film for sowing, and a winding disk is rotatably arranged above the fixed frame, and a film dripping tube is wound on the winding disk, and the movable end of the film dripping tube is located below the middle part of the ground film under the guidance of the guide sleeve, and a film cutting mechanism is installed on the fixed frame, and the film cutting mechanism is located between the film covering mechanism and the sowing mechanism, and the film cutting mechanism is used to cut off the ground film and the film dripping tube After the ground film and the film drip tube are cut off, the cut heads of the ground film and the film drip tube are lifted off the ground surface. Two soil covering mechanisms are installed on the fixed frame. The two soil covering mechanisms respectively take soil from both sides of the fixed frame in a quantitative manner and store the taken soil above the front and rear sides of the film cutting mechanism respectively. The soil above the rear side of the film cutting mechanism is triggered to fall when the film cutting mechanism cuts off the ground film and the film drip tube, and the soil above the front side of the film cutting mechanism is triggered to fall after the traction frame drives the film covering mechanism to swing down and fall to the ground. A leveling mechanism is arranged at the front end of the fixed frame. The leveling mechanism is used to level the ground surface before laying the ground film and to open a water storage groove on the ground surface corresponding to the middle of the ground film. The leveling mechanism, two soil covering mechanisms, two sowing mechanisms and film cutting mechanism all establish mechanical linkage with the traction frame driven by a hydraulic cylinder. The two ends of the hydraulic cylinder are respectively hinged to the fixed frame and the No. 2 support on the traction frame. The hinge point of the hydraulic cylinder and the fixed frame is located in front of the hinge point of the traction frame and the fixed frame. The winding disk is installed on the disk shaft, and the disk shaft is installed in the slot on the No. 1 support. The No. 1 support is fixed to the fixed frame. The film reel is installed on the film reel. The two ends of the film reel are inserted into the slots of the two film covering mechanisms. The two ends of the film reel are threaded with nuts, and the nuts are used to position the film reel.

[0009] The invention can be applied to the laminating mechanism to cover the soil on the corresponding side edge of the ground film by means of the threaded hole on the wall of the No. 1 sliding sleeve, and the No. 1 bracket is installed on the No. 1 sliding sleeve, and the No. 1 bracket is provided with a slot for installing the film roll, and the side end of the No. 1 sliding sleeve is provided with a No. 2 film pressing wheel in contact with the corresponding side edge of the ground film through the No. 2 supporting leg, and a No. 4 guide sleeve is installed on the No. 1 sliding sleeve, and a No. 3 supporting leg is installed in the No. 4 guide sleeve, and the lower end of the No. 3 supporting leg is connected to a No. 1 scraper plate through a special-shaped connecting rod, and the No. 1 scraper plate is used to cover the soil on the corresponding side edge of the ground film from the rear and outer side of the No. 2 film pressing wheel, and the No. 4 guide sleeve is provided with a bolt in the threaded hole on the wall of the No. 4 guide sleeve, and the No. 1 sliding sleeve is hinged with two swing arms, and the No. 1 sliding sleeve is provided with A No. 1 limit rod cooperates with the rocker arm, and the movable ends of the two rocker arms are rotatably connected to the Y frames at both ends of the drum respectively. The drum is laterally opposite to the No. 1 scraper plate, and three coaxial spiral sheets are arranged in the circumferential direction of the drum. A No. 5 guide sleeve and a No. 6 guide sleeve are installed on the No. 1 bracket, and a No. 4 support leg is installed in the No. 5 guide sleeve, and a No. 2 scraper plate is installed at the lower end of the No. 4 support leg, and a bolt is threadedly connected in the wall threaded hole of the No. 5 guide sleeve. The No. 2 scraper plate is located on the inner side of the front of the slot and is opposite to the No. 2 film pressing wheel front and back, the No. 5 support leg is installed in the No. 6 guide sleeve, and a No. 3 scraper plate is installed at the lower end of the No. 5 support leg, and a bolt is threadedly connected in the wall threaded hole of the No. 6 guide sleeve, and the No. 3 scraper plate is located on the inner side of the No. 2 scraper plate and is opposite to the corresponding side sowing mechanism front and back.

[0010] Furthermore, a No. 1 rack is installed on the No. 1 sliding sleeve, the No. 1 rack is meshed with a No. 4 gear on the No. 2 crossbar, and the No. 1 rack slides in a No. 3 guide sleeve on the adjacent No. 1 sliding sleeve.

[0011] Furthermore, the leveling mechanism includes a herringbone guide arc plate, a shovel head is provided on the lower middle side of the guide arc plate, two left-right symmetrically distributed No. 2 racks are fixedly installed on the rear side of the guide arc plate, the No. 2 racks vertically slide in the No. 2 guide sleeve at the front end of the fixed frame and mesh with the No. 1 gear on the fixed frame, the No. 2 gear on the shaft where the No. 1 gear is located meshes with the No. 3 gear on the fixed frame, the No. 1 sprocket on the shaft where the No. 3 gear is located is connected to the No. 2 sprocket fixed on the traction frame through a chain, and the No. 2 sprocket is coaxial with the hinge shaft of the traction frame and the fixed frame.

[0012] Furthermore, the pitch circle diameter of the No. 1 gear is larger than the pitch circle diameter of the No. 2 gear, the transmission ratio of the No. 2 gear to the No. 3 gear is larger than 1, and the pitch circle diameter of the No. 1 sprocket is smaller than the pitch circle diameter of the No. 2 sprocket, thereby ensuring that the guide arc plate and the shovel head in the leveling mechanism have a large distance from the ground surface after being swung on the traction frame without affecting the walking of the present invention during non-film-covered sowing.

[0013] Furthermore, the soil covering mechanism includes a No. 1 rotating shaft, the No. 1 rotating shaft is parallel to the axis of the supporting wheel, the No. 1 rotating shaft is rotatably arranged in a No. 1 rotating seat on one side of the fixed frame, a long strip side plate is installed on the No. 1 rotating shaft, a No. 2 spring is connected between the side rod and the vertical rod on the corresponding side of the fixed frame to make the lower end of the side plate swing down, and two No. 2 limit swing blocks for limiting the swing amplitude of the side plate are arranged on the fixed frame, two transmission rollers are installed on the side plate through roller shafts, and transmission belts are installed on the two transmission rollers, and convex strips parallel to the roller shafts are evenly arranged on the transmission belts, the roller shafts are connected to the motor transmission on the side plates, a shovel plate is installed at the lower end of the side plates, and the side plates are connected to the soil storage box through the No. 2 bracket, The soil storage box is located above the front side or the rear side of the film breaking mechanism, and the upper end of the side wall of the soil storage box is provided with a No. 1 guide groove that guides the soil falling from the upper end of the conveyor belt to the soil storage box. The bottom of the soil storage box is hinged with a bottom cover by two hinge pins parallel to the axis of the supporting wheel, and the bottom cover is fixedly connected to the hinge pins, and side rods and No. 1 shift rods are respectively installed on the hinge pins on both sides of the bottom cover, and a No. 1 spring and a damper are connected between the side rods and the side walls of the soil storage box, and the No. 1 shift rod is correspondingly matched with a No. 2 shift rod, and the No. 2 shift rod is hinged with a No. 3 bracket installed on the traction frame, and a vortex spring is connected between the No. 2 shift rod and the No. 3 bracket, and a No. 1 limit swing block matching the No. 2 shift rod is provided on the No. 3 bracket.

[0014] Furthermore, the two ends of the damper are respectively hinged to the side rod and the side wall of the soil storage box, the two ends of the No. 1 spring are respectively connected to the No. 1 rotating sleeve hinged on the side rod and the soil storage box, and the two ends of the No. 2 spring are respectively connected to the No. 1 rotating sleeve hinged on the vertical rod and the side plate.

[0015] Furthermore, the sowing mechanism includes a No. 2 sliding sleeve, the No. 2 sliding sleeve is sleeved on the No. 1 cross bar at the tail of the fixed frame, a telescopic rod is hinged between the No. 2 sliding sleeve and the corresponding No. 1 sliding sleeve, two No. 3 rotating seats are arranged on the No. 2 sliding sleeve, and a No. 2 rotating shaft parallel to the axis of the No. 2 film pressing wheel is arranged in the two No. 3 rotating seats, the No. 2 rotating shaft can rotate circumferentially and slide axially in the No. 3 rotating seat, the No. 2 rotating shaft is rotatably connected to the No. 2 rotating seat on the No. 1 cross bar, and two slip rings are slidably arranged on the No. 2 rotating shaft, The two slip rings are located on both sides of the two No. 3 rotating seats and are in contact with the No. 3 rotating seats. The inner wall of the slip ring has two guide bars, and the guide bars slide in the No. 2 guide groove on the No. 2 rotating shaft. The two slip rings are connected with the No. 4 bracket. A hole seeder opposite to the front and back of the corresponding No. 3 scraper plate is installed in the No. 4 bracket. The tail of the No. 4 bracket is hinged with the No. 5 bracket. The movable end of the No. 5 bracket is provided with a pressure roller corresponding to the front and back of the hole seeder. The No. 4 bracket is provided with a No. 2 limit rod for limiting the downward swing of the No. 5 bracket.

[0016] Furthermore, the film cutting mechanism includes a No. 3 cross bar, two left-right symmetrical rod sleeves are installed at both ends of the No. 3 cross bar, an inner rod is vertically slidable in the rod sleeve, a No. 3 spring for resetting the inner rod is arranged in the rod sleeve, a hoop is provided at the lower end of the inner rod, a negative pressure tube connected to a negative pressure pump is installed in the two hoop rings, suction holes are evenly opened at the bottom of the negative pressure tube, a No. 4 spring is sleeved on the negative pressure tube, and the two ends of the No. 4 spring are respectively connected to the two hoops, two left-right symmetrical guide rods are installed on the No. 3 cross bar, the guide rod is slidably arranged in a No. 1 guide sleeve on the fixed frame, a No. 3 rack is installed on the No. 3 cross bar, and the No. 3 rack is connected to the No. 1 cross bar. The gear No. 5 of the rod is meshed, the gear No. 6 on the shaft where the gear No. 5 is located is meshed with the gear No. 7 on the cross bar No. 1, the gear No. 7 is meshed with the gear No. 8 on the rotating shaft No. 2, the cross bar No. 3 is connected to the cross bar No. 5 through the right-angle rod No. 2, two pull rods are symmetrically hinged at both ends of the cross bar No. 5, a pneumatic rod is hinged between the pull rod and the cross bar No. 5, an electric heating wire is connected between the lower ends of the two pull rods, the electric heating wire is located at the rear side of the negative pressure tube, the two inner rods are connected through the cross bar No. 4, the cross bar No. 4 is connected to the plate seat through the right-angle rod No. 1, the plate seat is located in front of the negative pressure tube, and the lower surface of the plate seat is evenly provided with pins, and the pins are provided with barbs.

[0017] The pitch circle diameter ratio of the No. 6 gear and the No. 5 gear is less than 1, the No. 7 gear is meshed with the No. 8 gear on the No. 2 rotating shaft, and the transmission ratio of the No. 8 gear and the No. 6 gear is less than 1, which can ensure that the film cutting mechanism has a large distance from the ground surface when it falls on the ground surface under the film covering mechanism and the sowing mechanism to work without affecting the walking of the present invention. At the same time, it can ensure that the film cutting mechanism can quickly cut the ground film when it is freed from the ground surface on the film covering mechanism and the sowing mechanism.

[0018] Furthermore, the pulling mechanism includes a No. 3 support and a No. 4 support, and the No. 3 support and the No. 4 support are respectively installed on the No. 1 sliding sleeve and the No. 2 sliding sleeve, and the No. 1 pulley and the No. 2 pulley are installed on the No. 4 support, and the No. 1 pulley and the No. 2 pulley are wound with steel wire ropes in an S shape, and No. 2 rotating sleeves are installed at both ends of the steel wire ropes, and the two No. 2 rotating sleeves are rotatably set on the No. 4 support and the No. 3 support respectively.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention integrates film covering and sowing, saves labor, and effectively improves the efficiency of film covering and sowing.

[0021] 2. The film covering mechanism of the present invention can be installed with film rolls of different widths and can effectively cover the two side edges of ground films of different widths with soil.

[0022] 3. The ground leveling mechanism, the film cutting mechanism for cutting the ground film and lifting the cut head of the ground film, and the two soil covering mechanisms for covering the cut head of the ground film with soil in the present invention are driven by only one hydraulic cylinder in the present invention rather than by additional hydraulic equipment, thereby achieving the purpose of reducing equipment costs.

[0023] 4. The present invention uses the electric heating wire in the film cutting mechanism to replace the cutting knife in the prior art to cut the ground film and the thin film drip tube. The electric heating wire can more easily cut the ground film and the thin film drip tube completely without the phenomenon of "broken lotus roots and lingering threads", and the film cutting efficiency is high; the negative pressure tube and the insertion needle in the film cutting mechanism can lift the cut heads of the ground film and the thin film drip tube, avoiding the ends of the floor drain tube and the ground film from being hooked on the ground straw or ridged soil blocks and being torn due to drooping on the ground during the transfer process of the present invention to the next row.

[0024] 5. The present invention covers the initial and terminal ends of the ground film and the film dripping pipe on the ridge with soil through two covering mechanisms, so that the initial ends of the ground film and the film dripping pipe in the present invention are effectively fixed at the beginning stage of laying the ground film, saving labor and improving the film covering efficiency. At the same time, the initial and terminal ends of the ground film and the film dripping pipe are covered with soil to ensure that the ground film on each ridge is covered and compacted on all sides, further achieving the purpose of moisture conservation in the ridge under the ground film. In addition, the covering mechanism will not continue to transport soil upwards after storing a certain amount of soil, avoiding a large amount of dust.

[0025] 6. During the film covering process, the film covering mechanism of the present invention effectively covers the soil on both side edges of the ground film through two No. 1 scraper boards and covers the soil on the middle part of the ground film through two rollers, ensuring that the laid ground film is more stable and will not be blown away by strong winds; the two No. 2 scraper boards in the film covering mechanism can scrape grooves in the soil below the two side edges of the ground film, so that the soil scraped by the No. 1 scraper boards on the two side edges of the ground film are pressed tightly in the grooves, ensuring that the laying of the ground film is more stable. At the same time, the two No. 1 film pressing wheels in the middle of the traction frame will pierce uniform holes in the middle part of the ground film, which is conducive to rainwater infiltrating into the soil under the ground film through the holes and irrigating and moistening the soil under the ground film to a certain extent.

[0026] 7. The leveling mechanism in the present invention can properly level the surface soil before covering the film, which is convenient for leveling the film, and the excess soil on the leveled surface will be guided by the two guide arc plates to the conveyor belts of the two covering mechanisms and transmitted to the soil storage box without forming an accumulation under the head of the crawler vehicle. At the same time, the shovel head in the middle of the two guide arc plates in the leveling mechanism will form a groove on the surface covered by the middle part of the ground film, which is convenient for the middle part of the ground film to be compacted in the groove by the soil from the two rollers and form a barrier to the groove wall, so that rainwater can be accumulated in the groove and penetrate into the soil under the ground film through the holes in the middle part of the ground film pierced by the spurs on the No. 1 film pressing wheel.

[0027] 8. The two No. 3 scraper plates of the mulching mechanism in the present invention will scrape the dry soil on the surface corresponding to the two sowing mechanisms to ensure that the soil to be sown under the mulch is in a wet soil state, and ensure that the seeds sown in the soil have a high-moisture growth environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall appearance of the present invention;

[0029] Figure 2 is an overall side sectional view of the present invention;

[0030] Figure 3 is an overall top sectional view of the present invention;

[0031] Figure 4 It is a schematic diagram of the distribution of the film covering mechanism, the film cutting mechanism and the sowing mechanism in the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the fixing frame and the traction frame in the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the No. 1 film pressing wheel in the present invention;

[0034] Figure 7 It is a structural schematic diagram of the film covering mechanism and the corresponding sowing mechanism in the present invention;

[0035] Figure 8 It is a schematic diagram of the transmission connection between the film covering mechanism and the corresponding sowing mechanism in the present invention;

[0036] Fig. 9 is a cross-sectional view of a roller of the laminating mechanism of the present invention;

[0037] Fig.10 It is a cross-sectional view of the locking structure of the No. 3 leg on the laminating mechanism of the present invention;

[0038] Fig.11 It is a partial cross-sectional view of the laminating mechanism in the present invention;

[0039] Fig.12 It is a schematic diagram of the spacing adjustment structure of the two laminating mechanisms in the present invention;

[0040] Fig.13 It is a cross-sectional view of a film reel installed on the film laminating mechanism of the present invention;

[0041] Fig.14 It is a cross-sectional view of the transmission connection between the leveling mechanism and the traction frame in the present invention;

[0042] Fig.15 It is a schematic diagram of the guide arc plate structure of the leveling mechanism in the present invention;

[0043] Fig.16 It is a schematic diagram of the relative position distribution of two soil covering mechanisms in the present invention;

[0044] Fig.17 is a cross-sectional view of the conveyor belt structure of the soil covering mechanism in the present invention;

[0045] Fig.18 It is a partial schematic diagram of the conveyor belt of the soil covering mechanism in the present invention;

[0046] Fig.19 It is a partial schematic diagram of the soil covering mechanism in the present invention;

[0047] Fig. 20 It is a schematic diagram of the soil storage box structure of the soil covering mechanism in the present invention;

[0048] Fig.21 It is a cross-sectional view of the trigger structure of the front soil covering mechanism in the present invention;

[0049] Fig. 22 It is a cross-sectional view of the trigger structure of the rear covering mechanism of the present invention;

[0050] Fig.23 It is a schematic diagram of the reset structure of the soil covering mechanism in the present invention;

[0051] Fig.24 This is a schematic diagram of the interruption membrane mechanism of the present invention;

[0052] Fig.25 is a cross-sectional view of the interrupted membrane mechanism of the present invention;

[0053] Fig.26 It is a schematic diagram of the pin insertion of the film cutting mechanism of the present invention;

[0054] Fig. 27 is a cross-sectional view of a telescopic rod of the interrupted membrane mechanism of the present invention;

[0055] Fig.28 It is a cross-sectional view of the transmission connection between the interrupted film mechanism and the sowing mechanism of the present invention;

[0056] Fig.29 It is a cross-sectional view of the cooperation between the No. 2 rotating shaft of the sowing mechanism and the slip ring on the No. 4 bracket in the present invention;

[0057] Name of the label in the figure:

[0058] 1. Crawler head; 2. Fixed frame; 3. Vertical rod; 4. No. 1 crossbar; 5. No. 1 guide sleeve; 6. No. 1 support; 7. Slot; 8. No. 2 guide sleeve; 9. No. 1 swivel seat; 10. Traction frame; 11. No. 2 crossbar; 12. No. 2 support; 13. Hydraulic cylinder; 14. Guide sleeve; 15. No. 1 outrigger; 17. No. 1 film pressing wheel; 18. Spike; 19. Support wheel;

[0059] 20. Laminating mechanism; 2001. Sliding sleeve No. 1; 2002. Rack No. 1; 2003. Guide sleeve No. 3; 2004. Bracket No. 1; 2005. Slot; 2006. Leg No. 2; 2007. Pressing wheel No. 2; 2008. Guide sleeve No. 4; 2009. Leg No. 3; 2010. Connecting rod; 2011. Scraping board No. 1; 2012. Swing rod; 2013. Y frame; 2014. Roller; 2015. Spiral sheet; 2016. Limiting rod No. 1; 2017. Guide sleeve No. 5; 2018. Leg No. 4; 2019. Scraping board No. 2; 2020. Guide sleeve No. 6; 2021. Leg No. 5; 2022. Scraping board No. 3;

[0060] 21. Leveling mechanism; 2101. No. 2 rack; 2102. Guide arc plate; 2103. Shovel head; 2104. No. 1 gear; 2105. No. 2 gear; 2106. No. 3 gear; 2107. No. 1 sprocket; 2108. Chain; 2109. No. 2 sprocket;

[0061] 22. disk shaft; 23. winding disk; 24. film drip tube;

[0062] 25. Soil covering mechanism; 2501. No. 1 rotating shaft; 2502. Side plate; 2503. Roller; 2504. Transmission roller; 2505. Transmission belt; 2506. Raised strip; 2507. Motor; 2508. Shovel plate; 2509. No. 2 bracket; 2510. Soil storage box; 2511. No. 1 guide groove; 2512. Bottom cover; 2513. Side rod; 2514. Damper; 2515. No. 1 rotating sleeve; 2516. No. 1 spring; 2517. No. 1 lever; 2518. No. 3 bracket; 2520. No. 2 lever; 2521. Vortex spring; 2522. No. 1 limit swing block; 2523. No. 2 spring; 2524. No. 2 limit swing block;

[0063] 26. film reel; 27. nut; 28. film reel; 29. ​​ground film;

[0064] 30. Pulling mechanism; 3002. Support No. 3; 3003. Rotary sleeve No. 2; 3004. Wire rope; 3005. Pulley No. 1; 3006. Pulley No. 2; 3007. Support No. 4;

[0065] 31. Seeding mechanism; 3101. Sliding sleeve No. 2; 3102. Rotating shaft No. 2; 3103. Bracket No. 4; 3104. Seeder; 3105. Limiting rod No. 2; 3106. Bracket No. 5; 3107. Pressing roller; 3108. Telescopic rod; 3109. Rotating seat No. 2; 3110. Rotating seat No. 3; 3111. Slip ring; 3112. Guide bar; 3113. Guide groove No. 2;

[0066] 32. Gear No. 4; 33. Bolt;

[0067] 34. Film cutting mechanism; 3401. Crossbar No. 3; 3402. Guide rod; 3403. Rod sleeve; 3404. Inner rod; 3405. Spring No. 3; 3406. Crossbar No. 4; 3407. Negative pressure tube; 3408. Air suction hole; 3409. Spring No. 4; 3410. Right-angle rod No. 1; 3411. Plate seat; 3412. Insert pin; 3413. Barb; 3414. Right-angle rod No. 2; 3415. Crossbar No. 5; 3416. Pull rod; 3417. Electric heating wire; 3418. Pneumatic rod; 3419. Rack No. 3; 3420. Gear No. 5; 3421. Gear No. 6; 3422. Gear No. 7; 3423. Gear No. 8. DETAILED DESCRIPTION

[0068] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0069] The serial numbers of the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0070] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0071] like Figure 1-29As shown, a multifunctional film-covering seeder comprises a crawler head 1, a fixed frame 2 is fixedly mounted at the rear of the crawler head 1, two supporting wheels 19 are symmetrically mounted on both sides of the rear of the fixed frame 2, a traction frame 10 is hinged at the middle of the fixed frame 2 and the rear end thereof swings up and down under the drive of a hydraulic cylinder 13, two left-right symmetrical film-covering mechanisms 20 are mounted on a No. 2 cross bar 11 at the movable end of the traction frame 10, the two film-covering mechanisms 20 are used to lay a ground film 29 on the ground surface and cover the two side edges and the middle of the ground film 29 with soil, a No. 1 support leg 15 is arranged at the middle of the No. 2 cross bar 11, two No. 1 film-pressing wheels 17 in contact with the ground film 29 are rotatably mounted at the lower end of the No. 1 support leg 15, and a No. 1 film-pressing wheel 17 is circumferentially arranged on the rim of the No. 1 film-pressing wheel 17 A plurality of thorns 18, two sowing mechanisms 31 are installed on the No. 1 cross bar 4 at the tail of the fixed frame 2, and the two sowing mechanisms 31 correspond to the front film covering mechanism 20 one by one. The film covering mechanism 20 is connected with the corresponding sowing mechanism 31 through the pulling mechanism 30, and the two sowing mechanisms 31 are used to pierce the ground film 29 on both sides of the ground film 29 for sowing, and a winding disk 23 is rotatably arranged above the fixed frame 2, and a film dripping tube 24 is wound on the winding disk 23, and the movable end of the film dripping tube 24 is located below the middle part of the ground film 29 under the guidance of the guide sleeve 14, and a film cutting mechanism 34 is installed on the fixed frame 2, and the film cutting mechanism 34 is located between the film covering mechanism 20 and the sowing mechanism 31, and the film cutting mechanism 34 is used to cut off the ground film 29 and The film drip tube 24 lifts the cut-off heads of the ground film 29 and the film drip tube 24 off the ground surface after it cuts off the ground film 29 and the film drip tube 24. Two soil covering mechanisms 25 are installed on the fixed frame 2. The two soil covering mechanisms 25 respectively take soil from both sides of the fixed frame 2 in a quantitative manner and store the taken soil above the front and rear sides of the film cutting mechanism 34. The soil above the rear side of the film cutting mechanism 34 is triggered to fall when the film cutting mechanism 34 cuts off the ground film 29 and the film drip tube 24. The soil above the front side of the film cutting mechanism 34 is triggered to fall after the traction frame 10 drives the film covering mechanism 20 to swing down and fall to the ground. A leveling mechanism 21 is provided at the front end of the fixed frame 2. The leveling mechanism 21 is used to level the ground surface before laying the ground film 29 and to open a water storage hole on the ground surface corresponding to the middle of the ground film. The groove, the leveling mechanism 21, the two covering mechanisms 25, the two sowing mechanisms 31 and the film cutting mechanism 34 are all mechanically linked with the traction frame 10 driven by the hydraulic cylinder 13, the two ends of the hydraulic cylinder 13 are respectively hinged with the fixed frame 2 and the second support 12 on the traction frame 10, the hinge point of the hydraulic cylinder 13 and the fixed frame 2 is located in front of the hinge point of the traction frame 10 and the fixed frame 2, the winding disk 23 is installed on the disk shaft 22, the disk shaft 22 is installed in the slot 7 on the first support 6, the first support 6 is fixed on the fixed frame 2, the film reel 28 is installed on the film reel 26, the two ends of the film reel 26 are inserted into the slots 2005 of the two film covering mechanisms 20, and the two ends of the film reel 26 are threadedly connected with nuts 27,The nut 27 is used to position the film reel 26.

[0072] like Figure 7 , 9 As shown in Figures 10 and 12, the coating mechanism 20 includes a No. 1 sleeve 2001, which is mounted on a No. 2 cross bar 11. A bolt 33 is threadedly connected to a threaded hole on the wall of the No. 1 sleeve 2001. A No. 1 bracket 2004 is installed on the No. 1 sleeve 2001. A slot 2005 for mounting a film reel 28 is provided on the No. 1 bracket 2004. A No. 2 film pressing wheel 2007 in contact with the corresponding side edge of the ground film 29 is installed at the side end of the No. 1 sleeve 2001 through a No. 2 leg 2006. A No. 4 guide sleeve 2008 is installed on the No. 1 sleeve 2001. A No. 3 support leg 2009 is installed in the No. 3 guide sleeve 2008, and the lower end of the No. 3 support leg 2009 is connected to a No. 1 scraper board 2011 through a special-shaped connecting rod 2010. The No. 1 scraper board 2011 is used to cover the corresponding side edge of the ground film 29 from the rear outer side of the No. 2 film pressing wheel 2007. The wall threaded hole of the No. 4 guide sleeve 2008 is threadedly connected with a bolt 33. Two swing rods 2012 are hinged on the No. 1 sliding sleeve 2001. A No. 1 limit rod 2016 cooperating with the swing rod 2012 is provided on the No. 1 sliding sleeve 2001. The movable ends of the two swing rods 212 are respectively connected to the two ends of the roller 214 The Y frame 2013 is rotatably connected, the roller 2014 is horizontally opposite to the No. 1 scraper board 2011, and three coaxial spiral sheets 2015 are arranged in the circumferential direction of the roller 2014. The No. 1 bracket 2004 is installed with a No. 5 guide sleeve 2017 and a No. 6 guide sleeve 2020, and the No. 4 support leg 2018 is installed in the No. 5 guide sleeve 2017. The No. 2 scraper board 2019 is installed at the lower end of the No. 4 support leg 2018. The wall threaded hole of the No. 5 guide sleeve 2017 is threadedly connected with a bolt 33. The No. 2 scraper board 2019 is located on the inner side of the front of the slot 2005 and is connected to the No. 2 film pressing wheel 2007 in front and behind. Correspondingly, the No. 5 support leg 2021 is installed in the No. 6 guide sleeve 2020, and the No. 3 scraper plate 2022 is installed at the lower end of the No. 5 support leg 2021. The wall threaded hole of the No. 6 guide sleeve 2020 is threadedly connected with a bolt 33. The No. 3 scraper plate 2022 is located on the inner side of the No. 2 scraper plate 2019 and is opposite to the front and back of the corresponding side sowing mechanism 31. The No. 1 slide sleeve 2001 is installed with a No. 1 rack 2002, and the No. 1 rack 2002 is meshed with the No. 4 gear 32 on the No. 2 cross bar 11. The No. 1 rack 2002 slides in the No. 3 guide sleeve 2003 on the adjacent No. 1 slide sleeve 2001.

[0073] like Figure 3 , 14As shown in Figures 15 and 16, the leveling mechanism 21 includes a herringbone guide arc plate 2102, the lower middle side of the guide arc plate 2102 has a shovel head 2103, the rear side of the guide arc plate 2102 is fixed with two left-right symmetrically distributed No. 2 racks 2101, the No. 2 racks 2101 vertically slide in the No. 2 guide sleeve 8 at the front end of the fixed frame 2 and mesh with the No. 1 gear 2104 on the fixed frame 2, the No. 2 gear 2105 on the shaft where the No. 1 gear 2104 is located is meshed with the No. 3 gear 2106 on the fixed frame 2, and the No. 1 sprocket 2107 on the shaft where the No. 3 gear 2106 is located is connected to the No. 1 sprocket 2108 through the chain 2108. It is connected to the No. 2 sprocket 2109 fixed on the traction frame 10, the No. 2 sprocket 2109 is coaxial with the hinge axis of the traction frame 10 and the fixed frame 2, the pitch circle diameter of the No. 1 gear 2104 is larger than the pitch circle diameter of the No. 2 gear 2105, the transmission ratio of the No. 2 gear 2105 to the No. 3 gear 2106 is larger than 1, the pitch circle diameter of the No. 1 sprocket 2107 is smaller than the pitch circle diameter of the No. 2 sprocket 2109, to ensure that the guide arc plate 2102 and the shovel head 2103 in the leveling mechanism 21 have a large distance from the ground surface after being swung on the traction frame 10 without affecting the walking of the present invention during non-film sowing.

[0074] like Figure 16-23As shown, the soil covering mechanism 25 includes a No. 1 rotating shaft 2501, which is parallel to the axis of the supporting wheel 19. The No. 1 rotating shaft 2501 is rotatably arranged in the No. 1 rotating seat 9 on one side of the fixed frame 2. A long strip side plate 2502 is installed on the No. 1 rotating shaft 2501. A No. 2 spring 2523 for causing the lower end of the side plate 2502 to swing downward is connected between the side rod 2513 and the vertical rod 3 on the corresponding side of the fixed frame 2. Two No. 2 limiting swing blocks 2524 for limiting the swing amplitude of the side plate 2502 are arranged on the fixed frame 2. Two No. 2 limiting swing blocks 2524 for limiting the swing amplitude of the side plate 2502 are installed on the side plate 2502 through the roller shaft 2503. There are two transmission rollers 2504, and transmission belts 2505 are installed on the two transmission rollers 2504. The transmission belts 2505 are evenly provided with convex strips 2506 parallel to the roller shaft 2503. The roller shaft 2503 is connected to the motor 2507 on the side plate 2502. A shovel plate 2508 is installed at the lower end of the side plate 2502. The side plate 2502 is connected to a soil storage box 2510 through a second bracket 2509. The soil storage box 2510 is located above the front side or the rear side of the film cutting mechanism 34. The upper end of the side wall of the soil storage box 2510 is provided with a The soil under the soil storage box 2510 is guided to the No. 1 guide groove 2511 of the soil storage box 2510. The bottom of the soil storage box 2510 is hinged with a bottom cover 2512 through two hinge pins parallel to the axis of the support wheel 19. The bottom cover 2512 is fixedly connected to the hinge pins. Side rods 2513 and No. 1 levers 2517 are respectively installed on the hinge pins on both sides of the bottom cover 2512. A No. 1 spring 2516 and a damper 2514 are connected between the side rods 2513 and the side walls of the soil storage box 2510. The No. 1 lever 2517 is correspondingly matched with a No. 2 lever 2520. The No. 2 lever 2520 is installed on the traction frame 10. The No. 3 bracket 2518 is hinged, a vortex spring 2521 is connected between the No. 2 lever 2520 and the No. 3 bracket 2518, and the No. 3 bracket 2518 is provided with a No. 1 limit swing block 2522 that cooperates with the No. 2 lever 2520. The two ends of the damper 2514 are respectively hinged to the side rod 2513 and the side wall of the soil storage box 2510, and the two ends of the No. 1 spring 2516 are respectively connected to the side rod 2513 and the No. 1 rotating sleeve 2515 hinged on the soil storage box 2510, and the two ends of the No. 2 spring 2523 are respectively connected to the vertical rod 3 and the No. 1 rotating sleeve 2515 hinged on the side plate 2502.

[0075] like Figure 7 , 8As shown, the sowing mechanism 31 includes a No. 2 sliding sleeve 3101, which is sleeved on the No. 1 cross bar 4 at the tail of the fixed frame 2, and a telescopic rod 3108 is hinged between the No. 2 sliding sleeve 3101 and the corresponding No. 1 sliding sleeve 2001. Two No. 3 rotating seats 3110 are arranged on the No. 2 sliding sleeve 3101, and a No. 2 rotating shaft 3102 parallel to the axis of the No. 2 film pressing wheel 2007 is arranged in the two No. 3 rotating seats 3110. The No. 2 rotating shaft 3102 can rotate circumferentially and slide axially in the No. 3 rotating seat 3110, and the No. 2 rotating shaft 3102 is rotatably connected with the No. 2 rotating seat 3109 on the No. 1 cross bar 4, and two slip rings 3111 are slidably arranged on the No. 2 rotating shaft 3102. The two slip rings 3111 are slidably arranged on the No. 2 rotating shaft 3102. 11 is located on both sides of the two No. 3 swivel seats 3110 and is in contact with the No. 3 swivel seat 3110, the inner wall of the slip ring 3111 has two guide bars 3112, the guide bars 3112 slide in the No. 2 guide groove 3113 on the No. 2 rotating shaft 3102, the two slip rings 3111 are connected with the No. 4 bracket 3103, the No. 4 bracket 3103 is installed with a hole seeder 3104 opposite to the corresponding No. 3 scraper plate 2022, the tail of the No. 4 bracket 3103 is hinged with the No. 5 bracket 3106, the movable end of the No. 5 bracket 3106 is provided with a pressure roller 3107 corresponding to the front and back of the hole seeder 3104, and the No. 4 bracket 3103 is provided with a No. 2 limit rod 3105 for limiting the downward swing amplitude of the No. 5 bracket 3106.

[0076] like Figure 24-28As shown, the film cutting mechanism 34 includes a No. 3 cross bar 3401, two rod sleeves 3403 symmetrically distributed on the left and right sides are installed at the two ends of the No. 3 cross bar 3401, an inner rod 3404 is vertically slid in the rod sleeve 3403, and a No. 3 spring 3405 for resetting the inner rod 3404 is arranged in the rod sleeve 3403, and a hoop is provided at the lower end of the inner rod 3404, and a negative pressure pipe 3407 connected to a negative pressure pump is installed in the two hoop rings, and suction pipes 3407 are evenly provided at the bottom of the negative pressure pipe 3407. The air hole 3408, the negative pressure tube 3407 is provided with a No. 4 spring 3409, the two ends of the No. 4 spring 3409 are respectively connected to two hoops, the No. 3 crossbar 3401 is provided with two left-right symmetrical guide rods 3402, the guide rods 3402 are slidably arranged in the No. 1 guide sleeve 5 on the fixed frame 2, the No. 3 crossbar 3401 is provided with a No. 3 rack 3419, the No. 3 rack 3419 is meshed with the No. 5 gear 3420 installed on the No. 1 crossbar 4, the No. 5 gear The sixth gear 3421 on the shaft where the gear 3420 is located is meshed with the seventh gear 3422 on the first crossbar 4, and the seventh gear 3422 is meshed with the eighth gear 3423 on the second rotating shaft 3102. The third crossbar 3401 is connected to the fifth crossbar 3415 through the second right-angle rod 3414. Two pull rods 3416 are symmetrically hinged at both ends of the fifth crossbar 3415. A pneumatic rod 3418 is hinged between the pull rod 3416 and the fifth crossbar 3415. The two An electric heating wire 3417 is connected between the lower ends of the pull rod 3416, and the electric heating wire 3417 is located at the rear side of the negative pressure tube 3407. The two inner rods 3404 are connected by a No. 4 cross bar 3406, and the No. 4 cross bar 3406 is connected to the plate seat 3411 through a No. 1 right-angle rod 3410. The plate seat 3411 is located in front of the negative pressure tube 3407. The lower surface of the plate seat 3411 is evenly provided with pins 3412, and the pins 3412 are provided with barbs 3413. The pitch circle diameter ratio of the sixth gear 3421 and the fifth gear 3420 is less than 1, the seventh gear 3422 is meshed with the eighth gear 3423 on the second rotating shaft 3102, and the transmission ratio of the eighth gear 3423 and the sixth gear 3421 is less than 1, which can ensure that the film cutting mechanism 34 has a large distance from the ground surface when it falls on the ground under the film covering mechanism 20 and the sowing mechanism 31 to work without affecting the walking of the present invention. At the same time, it can ensure that the film cutting mechanism 34 can quickly cut the ground film 29 when it breaks away from the ground on the film covering mechanism 20 and the sowing mechanism 31.

[0077] like Figure 7 , 8As shown, the pulling mechanism 30 includes a No. 3 support 3002 and a No. 4 support 3007, and the No. 3 support 3002 and the No. 4 support 3007 are respectively installed on the No. 1 slide sleeve 2001 and the No. 2 slide sleeve 3101, and the No. 4 support 3007 is installed with a No. 1 pulley 3005 and a No. 2 pulley 3006, and the No. 1 pulley 3005 and the No. 2 pulley 3006 are wound with a steel wire rope 3004 in an S shape, and both ends of the steel wire rope 3004 are installed with a No. 2 rotating sleeve 3003, and the two No. 2 rotating sleeves 3003 are respectively rotatably set on the No. 4 support 3103 and the No. 3 support 3002.

[0078] The operation process of the present invention is as follows:

[0079] In the initial state, the soil storage boxes 2510 of the two soil covering mechanisms 25 are filled with a certain amount of soil, the lower shovel plates 2508 of the two conveyor belts 2505 are separated from the ground surface and have a certain distance from the ground surface, the two side plates 2502 are against the rear No. 2 limit swing blocks 2524 on the corresponding sides of the fixed frame 2, the two No. 2 springs 2523 are in a stretched state, the bottom covers 2512 at the bottom of the two soil storage boxes 2510 are in a closed state under the pull of the corresponding No. 1 springs 2516, and the two dampers 2514 are in the most extreme state.

[0080] In the initial state, the movable end of the traction frame 10 is swung up to the highest state, the two No. 2 levers 2520 on the No. 3 bracket 2518 are both located above the No. 1 lever 2517 on the side wall of the corresponding soil storage box 2510, the two No. 2 levers 2520 are both against the corresponding No. 1 limit swing block 2522 and the two vortex springs 2521 are both in a compressed state, the two coating mechanisms 20 and the two sowing mechanisms 31 are both in an upward state and separated from the ground, and the wire ropes 3004 in the two pulling mechanisms 30 are both in a taut state.

[0081] In the initial state, the two swing rods 2012 in the coating mechanism 20 abut against the corresponding No. 1 limit rod 2016 to ensure that the roller 2014 can swing adaptively when reaching the ground surface without interfering with the falling of the traction frame 10.

[0082] In the initial state, the No. 5 bracket 3106 in the sowing mechanism 31 abuts against the No. 2 limit rod 3105 on the corresponding No. 4 bracket 3103 to ensure that the pressure roller 3107 does not press against the hole seeder 3104 and cause damage to the hole seeder 3104, and the film breaking mechanism 34 is separated from the ground and is at a certain distance from the ground.

[0083] In the initial state, the negative pressure tube 3407 in the membrane breaking mechanism 34 is in a straight state under the action of the No. 4 spring 3409, and the No. 4 spring 3409 is in a stretched state. There is a certain distance between the pin 3412, the negative pressure tube 3407 and the electric heating wire 3417 and the ground surface.

[0084] In the initial state, the guide arc plate 2102 in the leveling mechanism 21 and the shovel head 2103 on the guide arc plate 2102 are separated from the ground surface and have a large distance from the ground surface.

[0085] When the present invention is used for film covering sowing, the lateral spacing between the two film covering mechanisms 20 and the lateral spacing between the two sowing mechanisms 31 are first adjusted according to the width of the film reel 28 used, and the adjustment process is as follows:

[0086] First, loosen the bolts 33 on the two No. 1 sliding sleeves 2001, and then push the two No. 1 sliding sleeves 2001 to slide toward or away from each other on the No. 2 cross bar 11 of the traction frame 10 for a certain range. During the sliding process, the two No. 1 sliding sleeves 2001 will drive the No. 2 gear 2105 on the No. 2 cross bar 11 to rotate through the corresponding No. 1 rack 2002, ensuring that the sliding distances of the two No. 1 sliding sleeves 2001 on the No. 2 cross bar 11 are equal. The two No. 1 sliding sleeves 2001 respectively drive the corresponding No. 2 sliding sleeves 3101 to slide synchronously through the corresponding telescopic rods 3108, and the two No. 2 sliding sleeves 3101 move synchronously with the No. 1 sliding sleeve 2001, thereby realizing the spacing adjustment of the two coating mechanisms 20 and the two sowing mechanisms 31, and the pulling mechanism 30 connecting the sowing mechanism 31 and the coating mechanism 20 moves synchronously with the sowing mechanism 31 or the coating mechanism 20. When the two sowing mechanisms 31 move toward or away from each other, the fourth bracket 3103 and the second sleeve 3101 in the sowing mechanism 31 slide axially with the second rotating shaft 3102. The two film coating mechanisms 20 and the two sowing mechanisms 31 move toward or away from each other at equal distances to ensure that the two film coating mechanisms 20 and the two sowing mechanisms 31 always maintain a left-right symmetrical state.

[0087] After the spacing adjustment of the two film covering mechanisms 20 and the two sowing mechanisms 31 is completed, tighten the bolts 33 on the two No. 1 sleeves 2001 to lock the No. 1 sleeves 2001. At this time, the spacing between the hole seeders 3104 in the two sowing mechanisms 31 matches the width of the ground film 29 on the film reel 28, and the spacing between the two rollers 2014 in the two film covering mechanisms 20, the spacing between the two No. 1 scraper plates 2011, the spacing between the two No. 2 film pressing wheels 2007, the spacing between the two No. 2 scraper plates 2019, the spacing between the two No. 3 scraper plates 2022 and the spacing between the two slots 2005 all match the width of the ground film 29 on the film reel 28.

[0088] After the spacing between the two film covering mechanisms 20 is adjusted, the height of the two No. 1 scraper boards 2011 is adjusted up and down according to the amount of soil covering on both sides of the ground film 29 as needed, the height of the two No. 2 scraper boards 2019 is adjusted up and down according to the corresponding groove depth required for covering the soil on both sides of the ground film 29, and the height of the two No. 3 scraper boards 2022 is adjusted up and down according to the surface dryness of the soil.

[0089] After the adjustment of the two film coating mechanisms 20 is completed, the film reel 28 is installed on the two film coating mechanisms 20 by inserting the film reel 26 into the two slots 2005. The two ends of the film reel 26 are respectively threaded with nuts 27. The winding disk 23 wrapped with the film drip tube 24 is installed on the No. 1 support 6 through the disk shaft 22 in the slot 7 on the No. 1 support 6. Then, the ground film 29 is pulled out from the film reel 28, and the ground film drives the film reel 28 to rotate. After the ground film 29 passes through the two No. 1 film pressing wheels 17 and the two No. 2 film pressing wheels 18, the ground film 29 is pulled out from the film reel 28. The ground film drives the film reel 28 to rotate. After the ground film 29 passes around the two No. 1 film pressing wheels 17 and the two No. 2 film pressing wheels 18, the ground film 29 is pulled out from the film reel 28. After the ground film 29 passes through ... The film wheel 2007 and the two rollers 2014 then adsorb the free end of the ground film 29 onto the negative pressure tube 3407 in the film cutting mechanism 34 and detach it from the ground surface. At the same time, the free end of the film dripping tube 24 passes through the guide sleeve 14 and is pulled from under the ground film 29 toward the film cutting mechanism 34. Then, the film dripping tube 24 and the free ends of the ground film 29 are inserted into the insertion pin 3412 of the film cutting mechanism 34. The barbs 3413 on the insertion pin 3412 can ensure that the film dripping tube 24 will not fall and keep the film dripping tube 24 away from the ground surface.

[0090] Then, the present invention measures the area of ​​the cultivated land through GPS signal positioning and performs autonomous operations according to the actual cultivated area. The crawler head 1 starts and drives the fixed frame 2 to move to the destination. The two support wheels 19 at the rear end of the fixed frame 2 support the fixed frame 2 during the movement of the fixed frame 2.

[0091] After the film cutting mechanism 34 reaches the beginning of the ridge, the hydraulic cylinder 13 is started to extend, and the hydraulic cylinder 13 drives the traction frame 10 to swing down. The two traction frames 10 drive the two film covering mechanisms 20 to swing down to the ground surface. The first scraper plate 2011, the second scraper plate 2019 and the third scraper plate 2022 in the film covering mechanism 20 are inserted into the surface soil to a certain depth. The two second film pressing wheels 2007 press the two sides of the ground film 29 to the surface of the two sides of the ridge, and the two rollers 2014 press the middle of the ground film 29 to the surface of the middle of the ridge. The rocker arms 2012 on both sides of the two rollers 2014 are separated from the No. 1 limit rod 2016, and the No. 4 bracket 3103 in the two sowing mechanisms 31 swings down to the ground surface around the No. 2 rotating shaft 3102 as the two film-covering mechanisms 20 swing down and the wire rope 3004 loosens due to the swinging of the film-covering mechanisms 20. The No. 2 rotating shaft 3102 rotates driven by the No. 4 bracket 3103, and the sowing nozzles of the two seed drills 3104 in the sowing mechanism 31 are inserted into the soil, and the two pressure rollers 3107 are pressed against the ground surface and separated from the No. 2 limit rod 3105.

[0092] During the downward swing of the sowing mechanism 31, the second rotating shaft 3102 drives the entire film cutting mechanism 34 to move upward through the eighth gear 3423, the seventh gear 3422, the sixth gear 3421, the fifth gear 3420 and the third rack 3419, and the film cutting mechanism 34 drives the film drip tube 24 and the free end of the ground film 29 to move synchronously, and the second lever 2520 located at the front side of the film cutting mechanism 34 drives the bottom cover 2512 of the soil storage box 2510 in front of the film cutting mechanism 34 to open quickly through the first lever 2517 under the action of the corresponding first limit swing block 2522, and the soil storage box 2510 with the bottom cover 2512 opened is opened. The side wall No. 1 spring 2516 is stretched, and the damper 2514 is stretched quickly. When the No. 2 lever 2520 is separated from the No. 1 lever 2517, the bottom cover 2512 is closed under the reset action of the No. 1 spring 2516. However, the bottom cover 2512 closes very slowly due to the existence of the damper 2514 and does not close the soil storage box 2510 quickly. The soil in the soil storage box 2510 flows to the front of the film breaking mechanism 34 through the opened bottom and covers the free ends of the ground film 29 and the film dripping tube 24 on the ground surface. The ground film 29 and the film dripping tube 24 are forcibly separated from the pin 3412 and the negative pressure tube 3407 under the heavy pressure of the soil. The bottom cover 2512 at the bottom of the soil storage box 2510 is slowly closed after the soil in it is completely discharged due to the combined action of the spring and the damper 2514. The shovel plate 2508 end of the soil covering mechanism 25 where the soil storage box 2510 for discharging soil is located swings down to the ground surface under the action of the No. 2 spring 2523, and the side plate 2502 of the soil covering mechanism 25 swings from one No. 2 limit swing block 2524 to another No. 2 limit swing block 2524.

[0093] At the same time, the No. 2 lever 2520 located at the rear side of the film breaking mechanism 34 swings upward under the action of the corresponding No. 1 lever 2517 to make way and disengage from the corresponding No. 1 limit swing block 2522, the corresponding vortex spring 2521 is compressed to store energy, and the corresponding bottom cover 2512 remains closed to the bottom of the soil storage box 2510 because its upward swing is restricted, and the soil in the soil storage box 2510 will not be discharged.

[0094] During the downward swing of the traction frame 10, the traction frame 10 drives the two No. 2 sprockets 2109 to rotate, and the two No. 2 sprockets 2109 respectively drive the guide arc plate 2102 to move vertically downward to the ground surface through the corresponding chain 2108, the No. 1 sprocket 2107, the No. 3 gear 2106, the No. 2 gear 2105, the No. 1 gear 2104, and the No. 2 rack 2101, and the shovel head 2103 in the middle of the guide arc plate 2102 is inserted into the soil.

[0095] Next, the crawler head 1 drives the fixed frame 2 to move forward, and the fixed frame 2 drives the leveling mechanism 21, the film covering mechanism 20, the soil covering mechanism 25 and the sowing mechanism 31 to move forward synchronously. At the same time, the motors 2507 in the two soil covering mechanisms 25 are started, and the two motors 2507 respectively drive the corresponding transmission belts 2505 to operate.

[0096] When the crawler vehicle head 1 drives the leveling mechanism 21, the film covering mechanism 20, the soil covering mechanism 25 and the sowing mechanism 31 to move forward synchronously, the shovel head 2103 in the leveling mechanism 21 located at the front shovels a water storage groove in the middle position of the surface to be covered by the ground film 29, and the herringbone guide arc plate 2102 of the leveling mechanism 21 levels the surface and guides the excess soil to the lower end shovel plate 2508 of the two conveyor belts 2505 of the two soil covering mechanisms 25 to avoid soil accumulation.

[0097] The shovel plate 2508 located on the surface guides the soil from the guide arc plate 2102 or the soil on the surface to the conveyor belt 2505, and the convex strip 2506 on the conveyor belt 2505 carries the soil to the top. The soil reaching the top falls into the corresponding No. 1 guide groove 2511 under the action of its own weight as the conveyor belt 2505 moves. The soil falling into the No. 1 guide groove 2511 falls into the soil storage box 2510 under the guidance of the No. 1 guide groove 2511. When the soil in the soil storage box 2510 reaches a certain weight, the torque generated by the soil storage box 2510 will overcome the torque generated by the No. 2 spring 2523, and the soil storage box 2510 swings down to the extreme position around the corresponding No. 1 rotating shaft 2501, and the No. 1 lever 2517 at the bottom of the soil storage box 2510 is located above the corresponding No. 2 lever 2520 without interacting with the No. 2 lever 2520.

[0098] Because the free ends of the ground film 29 and the film drip tube 24 are covered by the soil and the two sides of the ground film 29 are pressed by the two No. 2 film pressing wheels 2007 respectively, the film reel 28 and the winding disk 23 rotate and release the ground film 29 and the film drip tube 24 respectively under the traction of the ground film 29 and the film drip tube 24, and the two No. 2 scraper plates 2019 located in front of the film reel 28 shovel out grooves on the route where the two No. 2 film pressing wheels 2007 are about to pass, so that the two sides of the ground film 29 are covered with soil in a concave state. The two No. 3 scraper plates 2022 located in front of the film reel 28 remove the surface dry soil on the route where the two hole seeders 3104 are about to pass, so that the seeds entering the soil from the hole seeders 3104 have a better moisture environment. At the same time, the two No. 1 scraper blades 2011 located at the rear side of the two No. 2 film pressing wheels 2007 shovel the soil from both sides of the ground film 29 to the top of the edges of the two sides of the ground film 29 and push the soil into the outer ports of the two rollers 2014. While the two rollers 2014 rotate, the spiral blades 2015 therein transfer the incoming soil to the top of the middle part of the ground film 29 and the middle part of the ground film 29 is amplitude-pressed. The middle part of the ground film 29 and the film drip tube 24 are pressed into the water storage groove shoveled out by the shovel head 2103 under the pressure of the soil in the roller 2014, so that the ground film is After the middle part of 29 is laid, a depression is formed to facilitate the storage of rainwater and the film drip tube 24 will not move sideways and maintain drip irrigation from the middle position to both sides. Before the middle part of the ground film 29 is covered by the soil in the roller 2014, the two No. 1 film pressing wheels 17 located in front of the two rollers 2014 rotate, and the spurs 18 on the No. 1 film pressing wheels 17 evenly pierce leakage holes in the middle part of the ground film 29. After the leakage holes are pierced, the middle part of the ground film 29 is covered by the soil coming out of the roller 2014. The leakage holes facilitate rainwater to enter the water storage groove and then seep into the soil under the ground film 29.

[0099] After the hole seeder 3104 in the two sowing mechanisms completes covering the middle and both sides of the ground film 29, it pierces the ground film 29 at the wet soil part scraped by the No. 3 scraper board 2022 and completes sowing. After the hole seeder 3104 completes sowing, the two pressing rollers 3107 in the sowing mechanism 31 moderately compact the soil where the seeds are located.

[0100] When the present invention reaches the end of the ridge, the hydraulic cylinder 13 is started to drive the traction frame 10 to swing up to the limit, and the traction frame 10 drives the two soil covering mechanisms 25 to synchronously get rid of the ground surface, and the two soil covering mechanisms 25 respectively drive the No. 4 bracket 3103 in the two sowing mechanisms 31 to get rid of the ground surface around the No. 2 rotating shaft 3102 through the corresponding pulling mechanism 30, and the guide arc plate 2102 and the shovel head 2103 in the leveling mechanism 21 move vertically upward to the limit and get away from the ground surface. At the same time, the No. 2 rotating shaft 3102 in the sowing mechanism 31 drives the No. 3 cross bar 3401, the No. 4 cross bar 3406 and the No. 5 cross bar 3415 to move downward to the limit synchronously through a series of transmissions. After the electric heating wire 3417 reaches the ground, it is pressed against the ground. When the film 29 and the film drip tube 24 are cut off, the lower ends of the pull rods 3416 at both ends of the electric heating wire 3417 swing inward and compress the pneumatic rod, so that the electric heating wire 3417 can adapt to the ridge and complete the complete cutting of the ground film 29 and the film drip tube 24. At the same time, the negative pressure tube 3407 adapts to the ridge to produce moderate bending and adsorbs the cut head of the ground film 29, and the No. 4 spring 3409 produces corresponding deformation. The two inner rods 3404 shrink into the corresponding rod sleeves 3403 under the pressure of the ground and compress the No. 3 spring 3405. The pin 3412 on the plate seat 3411 penetrates the ground film 29 and pierces the cut head of the film drip tube 24. Because the pin 3412 has barbs 3413, the film drip tube 24 will not easily detach.

[0101] During the process of the electric heating wire 3417 cutting off the ground film 29 and the film drip tube 24, the No. 3 bracket 2518 connected to the traction frame 10 drives the two No. 2 levers 2520 to swing up to the limit position synchronously. During the swinging up process of the No. 3 bracket 2518, the No. 2 lever 2520 in front of the film cutting mechanism 34 swings down to give way and disengage from the corresponding No. 1 limit swing block 2522 under the action of the No. 1 lever 2517 at the bottom of the corresponding soil storage box 2510, and the corresponding vortex spring 2521 is compressed. The swinging of the bottom cover 2512 at the bottom of the soil storage box 2510 in front of the film cutting mechanism 34 is restricted and the soil storage box 2510 is kept closed. After the No. 2 lever 2520 is separated from the No. 1 lever 2517, it swings back and resets under the action of the vortex spring 2521, and the No. 2 lever 2520 at the rear of the film cutting mechanism 34 is No swinging down to give way occurs, and the No. 2 lever 2520 behind the film cutting mechanism 34 drives the bottom cover 2512 at the bottom of the corresponding soil storage box 2510 to swing down and open through the corresponding No. 1 lever 2517. During the opening process, the bottom cover 2512 of the soil storage box 2510 on the rear side of the film cutting mechanism 34 stretches the corresponding No. 1 spring 2516 and the damper 2514. After the No. 1 lever 2517 disengages from the No. 2 lever 2520, the bottom cover 2512 of the soil storage box 2510 slowly closes under the combined action of the damper 2514 and the No. 1 spring 2516, and the soil in the soil storage box 2510 quickly falls to the rear side of the film cutting mechanism 34 and covers the cut head of the ground film 29 laid on the ridge with soil. After the soil in the soil storage box 2510 is completely discharged, the bottom cover 2512 is closed under the action of the No. 1 spring 2516.

[0102] The bottom covers 2512 at the bottom of the two soil storage boxes 2510 will guide the soil falling in the soil storage boxes 2510 away from the film cutting mechanism 34 after opening, ensuring that the soil in the soil storage boxes 2510 will not bury the film cutting mechanism 34 after falling and affect the cutting of the ground film 29 and the film drip tube 24 by the film cutting mechanism 34.

[0103] When the soil in the soil storage box 2510 at the rear side of the film cutting mechanism 34 is completely discharged, the shovel plate 2508 end of the conveyor belt 2505 of the corresponding soil covering mechanism 25 swings down to the ground surface under the action of the corresponding No. 2 spring 2523.

[0104] Then, the hydraulic cylinder 13 is started to drive the traction frame 10 to swing down to the height position of the initial state away from the ground surface, and the two No. 2 levers 2520 are both located above the corresponding No. 1 lever 2517. The traction frame 10 drives the film cutting mechanism 34 to move upward as a whole by a certain amplitude to the height position of the initial state away from the ground surface through the film covering mechanism 20, the pulling mechanism 30 and the sowing mechanism 31. The negative pressure tube 3407 absorbs and lifts the cut head of the ground film 29 away from the ground surface, and the pin 3412 on the plate seat 3411 lifts the film drip tube 24 away from the ground surface.

[0105] Next, the present invention moves to the next adjacent ridge and completes the cutting of the ground film 29 and the film drip tube 24. The head is located at the beginning of the ridge, the crawler head 1 is in the front and the fixed frame 2 is in the back. During the ridge changing process of the present invention, the shovel plate 2508 in the covering mechanism 25 that covers the soil behind the film cutting mechanism 34 will guide the soil to the corresponding conveyor belt 2505, and the conveyor belt 2505 will transfer the soil to the corresponding No. 1 guide groove 2511 and finally into the soil storage box 2510. When the soil in the soil storage box 2510 reaches the required amount, the soil storage box 2510 will overcome the elastic force of the corresponding No. 1 spring 2516 and swing down around the No. 1 rotating shaft 2501 to the height position of the initial state, and then the spring is further stretched to store energy.

[0106] Repeat the above process to carry out film covering and sowing of the second row of ridges, and repeat this process to complete the film covering and sowing of the entire land.

Claims

1. A multifunctional film-covering seeder, comprising a crawler head (1), a fixed frame (2) fixedly mounted at the rear of the crawler head (1), two support wheels (19) symmetrically mounted on both sides of the rear of the fixed frame (2), a traction frame (10) hinged at the middle of the fixed frame (2) for swinging up and down at the rear end under the drive of a hydraulic cylinder (13), characterized in that: Two symmetrical film covering mechanisms (20) are installed on the second cross bar (11) at the movable end of the traction frame (10). The two film covering mechanisms (20) are used to lay a ground film (29) on the ground surface and cover the two side edges and the middle of the ground film (29) with soil. A first leg (15) is arranged in the middle of the second cross bar (11). Two first film pressing wheels (17) in contact with the ground film (29) are rotatably arranged at the lower end of the first leg (15). A plurality of spurs (18) are circumferentially arranged on the rim of the first film pressing wheel (17). Two sowing mechanisms are installed on the first cross bar (4) at the tail of the fixed frame (2). (31), the two sowing mechanisms (31) correspond to the front film covering mechanism (20) one by one, the film covering mechanism (20) is connected to the corresponding sowing mechanism (31) through the pulling mechanism (30), the two sowing mechanisms (31) are used to pierce the ground film (29) on both sides of the ground film (29) for sowing, a winding disk (23) is rotatably arranged above the fixed frame (2), a film dripping tube (24) is wound on the winding disk (23), the movable end of the film dripping tube (24) is located below the middle part of the ground film (29) under the guidance of the guide sleeve (14), and a film cutting mechanism (34) is installed on the fixed frame (2), The film cutting mechanism (34) is located between the film covering mechanism (20) and the sowing mechanism (31). The film cutting mechanism (34) is used to cut the ground film (29) and the film dripping tube (24) and lift the cut heads of the ground film (29) and the film dripping tube (24) off the ground surface after the ground film (29) and the film dripping tube (24) are cut. Two soil covering mechanisms (25) are installed on the fixed frame (2). The two soil covering mechanisms (25) respectively take soil quantitatively from both sides of the fixed frame (2) and store the taken soil above the front and rear sides of the film cutting mechanism (34). The soil above the rear side of the film cutting mechanism (34) is stored in the film cutting mechanism (3 4) When the ground film (29) and the film dripping pipe (24) are cut, they are triggered to fall down, and the soil above the front side of the film cutting mechanism (34) is triggered to fall down after the traction frame (10) drives the film covering mechanism (20) to swing down and fall to the ground. The front end of the fixed frame (2) is provided with a leveling mechanism (21), and the leveling mechanism (21) is used to level the ground surface before laying the ground film (29) and to open a water storage groove on the ground surface corresponding to the middle of the ground film (29). The leveling mechanism (21), the two soil covering mechanisms (25), the two sowing mechanisms (31) and the film cutting mechanism (34) are all mechanically linked with the traction frame (10) driven by the hydraulic cylinder (13).

2. A multifunctional film covering seeder according to claim 1, characterized in that: The coating mechanism (20) comprises a No. 1 sliding sleeve (2001), the No. 1 sliding sleeve (2001) being sleeved on a No. 2 cross bar (11), a bolt (33) being threadedly connected to a threaded hole on the wall of the No. 1 sliding sleeve (2001), a No. 1 bracket (2004) being mounted on the No. 1 sliding sleeve (2001), a slot (2005) being provided on the No. 1 bracket (2004) for mounting a film reel (28), a No. 2 film pressing wheel (2007) being mounted on the side end of the No. 1 sliding sleeve (2001) through a No. 2 leg (2006) and being in contact with the corresponding side edge of the ground film (29), the No. 1 sliding sleeve (2001 ) is installed with a No. 4 guide sleeve (2008), a No. 3 support leg (2009) is installed in the No. 4 guide sleeve (2008), the lower end of the No. 3 support leg (2009) is connected to a No. 1 scraper board (2011) through a special-shaped connecting rod (2010), the No. 1 scraper board (2011) is used to cover the corresponding side edge of the ground film (29) from the rear outer side of the No. 2 film pressing wheel (2007), the wall threaded hole of the No. 4 guide sleeve (2008) is threadedly connected with a bolt (33), the No. 1 sliding sleeve (2001) is hinged with two swing rods (2012), and the No. 1 sliding sleeve (2001) is provided with a swing rod (2011) connected to the swing rod (2011). 12) is matched with a No. 1 limit rod (2016), the movable ends of the two swing rods (2012) are respectively rotatably connected to the Y frames (2013) at both ends of the roller (2014), the roller (2014) is laterally opposite to the No. 1 scraper board (2011), three coaxial spiral sheets (2015) are arranged in the inner circumference of the roller (2014), the No. 5 guide sleeve (2017) and the No. 6 guide sleeve (2020) are installed on the No. 1 bracket (2004), the No. 4 support leg (2018) is installed in the No. 5 guide sleeve (2017), and the No. 2 scraper board (2019) is installed at the lower end of the No. 4 support leg (2018). ), the threaded hole on the wall of the No. 5 guide sleeve (2017) is threadedly connected with a bolt (33), the No. 2 scraper plate (2019) is located on the inner side in front of the slot (2005) and is opposite to the No. 2 film pressing wheel (2007) in front and back, the No. 5 support leg (2021) is installed in the No. 6 guide sleeve (2020), and the No. 3 scraper plate (2022) is installed at the lower end of the No. 5 support leg (2021), the threaded hole on the wall of the No. 6 guide sleeve (2020) is threadedly connected with a bolt (33), and the No. 3 scraper plate (2022) is located on the inner side of the No. 2 scraper plate (2019) and is opposite to the corresponding side sowing mechanism (31) in front and back.

3. A multifunctional film covering seeder according to claim 2, characterized in that: A rack (2002) is mounted on the first sliding sleeve (2001), the rack (2002) is meshed with a gear (32) on the second crossbar (11), and the rack (2002) slides in a guide sleeve (2003) on the adjacent first sliding sleeve (2001).

4. The multifunctional film covering seeder according to claim 1, characterized in that: The leveling mechanism (21) comprises a herringbone-shaped guide arc plate (2102), the middle lower side of the guide arc plate (2102) having a shovel head (2103), the rear side of the guide arc plate (2102) being fixed with two left-right symmetrically distributed No. 2 racks (2101), the No. 2 racks (2101) vertically sliding in a No. 2 guide sleeve (8) at the front end of the fixed frame (2) and meshing with a No. 1 gear (2104) on the fixed frame (2), the No. 2 gear (2105) on the shaft where the No. 1 gear (2104) is located meshing with a No. 3 gear (2106) on the fixed frame (2), the No. 2 gear (2106) on the fixed frame (2) being arranged on the shaft of the No. 1 gear (2104 ... The first sprocket (2107) on the shaft where the third gear (2106) is located is connected to the second sprocket (2109) fixed on the traction frame (10) through a chain (2108); the second sprocket (2109) is coaxial with the hinge axis of the traction frame (10) and the fixed frame (2); the pitch circle diameter of the first gear (2104) is greater than the pitch circle diameter of the second gear (2105); the transmission ratio of the second gear (2105) to the third gear (2106) is greater than 1; and the pitch circle diameter of the first sprocket (2107) is smaller than the pitch circle diameter of the second sprocket (2109).

5. The multifunctional film covering seeder according to claim 2, characterized in that: The two ends of the hydraulic cylinder (13) are respectively hinged to the second support (12) on the fixed frame (2) and the traction frame (10); the hinge point between the hydraulic cylinder (13) and the fixed frame (2) is located in front of the hinge point between the traction frame (10) and the fixed frame (2); the winding disk (23) is installed on the disk shaft (22); the disk shaft (22) is installed in the slot (7) on the first support (6); the first support (6) is fixed on the fixed frame (2); the film reel (28) is installed on the film reel (26); the two ends of the film reel (26) are inserted into the slots (2005) of the two film coating mechanisms (20); the two ends of the film reel (26) are threadedly connected with nuts (27); the nuts (27) are used to position the film reel (26).

6. The multifunctional film covering seeder according to claim 1, characterized in that: The soil covering mechanism (25) comprises a No. 1 rotating shaft (2501), the No. 1 rotating shaft (2501) is parallel to the axis of the supporting wheel (19), the No. 1 rotating shaft (2501) is rotatably arranged in a No. 1 rotating seat (9) on one side of the fixing frame (2), a long strip side plate (2502) is installed on the No. 1 rotating shaft (2501), a No. 2 spring (2523) for causing the lower end of the side plate (2502) to swing downward is connected between the side rod (2513) and the vertical rod (3) on the corresponding side of the fixing frame (2), and two No. 2 swing limiters (2523) for limiting the swing amplitude of the side plate (2502) are arranged on the fixing frame (2). The side plate (2502) is provided with two transmission rollers (2504) through roller shafts (2503), and the two transmission rollers (2504) are provided with transmission belts (2505), and the transmission belts (2505) are evenly provided with convex strips (2506) parallel to the roller shafts (2503), and the roller shafts (2503) are transmission-connected to the motor (2507) on the side plate (2502), and the lower end of the side plate (2502) is provided with a shovel plate (2508), and the side plate (2502) is connected to a soil storage box (2509) through a second bracket (2509). 510), the soil storage box (2510) is located above the front side or the rear side of the film cutting mechanism (34), the upper end of the side wall of the soil storage box (2510) is provided with a first guide groove (2511) for guiding the soil falling from the upper end of the conveyor belt (2505) to the soil storage box (2510), the bottom of the soil storage box (2510) is hinged with a bottom cover (2512) through two hinge pins parallel to the axis of the support wheel (19), the bottom cover (2512) is fixedly connected to the hinge pins, and the hinge pins on both sides of the bottom cover (2512) are respectively fixed with side rods (2513) and a first lever (2511). 517), a first spring (2516) and a damper (2514) are connected between the side rod (2513) and the side wall of the soil storage box (2510), the first lever (2517) is matched with a second lever (2520), the second lever (2520) is hinged with a third bracket (2518) installed on the traction frame (10), a vortex spring (2521) is connected between the second lever (2520) and the third bracket (2518), and the third bracket (2518) is provided with a first swing limit block (2522) matched with the second lever (2520).

7. The multifunctional film covering seeder according to claim 6, characterized in that: The two ends of the damper (2514) are respectively hinged to the side rod (2513) and the side wall of the soil storage box (2510), the two ends of the No. 1 spring (2516) are respectively connected to the side rod (2513) and the No. 1 rotating sleeve (2515) hinged on the soil storage box (2510), and the two ends of the No. 2 spring (2523) are respectively connected to the vertical rod (3) and the No. 1 rotating sleeve (2515) hinged on the side plate (2502).

8. The multifunctional film covering seeder according to claim 2, characterized in that: The sowing mechanism (31) comprises a No. 2 sliding sleeve (3101), the No. 2 sliding sleeve (3101) is sleeved on a No. 1 cross bar (4) at the tail of the fixed frame (2), a telescopic rod (3108) is hinged between the No. 2 sliding sleeve (3101) and the corresponding No. 1 sliding sleeve (2001), and two No. 3 rotating seats (3110) are arranged on the No. 2 sliding sleeve (3101), and the two No. 3 rotating seats (3110) are provided with A second rotating shaft (3102) is arranged parallel to the axis of the second film pressing wheel (2007); the second rotating shaft (3102) can rotate circumferentially and slide axially in the third rotating seat (3110); the second rotating shaft (3102) is rotationally connected to the second rotating seat (3109) on the first cross bar (4); two slip rings (3111) are slidably arranged on the second rotating shaft (3102); the two slip rings (3111) ) are located on both sides of the two No. 3 rotating seats (3110) and are in contact with the No. 3 rotating seats (3110), the inner wall of the slip ring (3111) has two guide bars (3112), and the guide bars (3112) slide in the No. 2 guide groove (3113) on the No. 2 rotating shaft (3102), the two slip rings (3111) are connected with the No. 4 bracket (3103), the No. 4 bracket (3103) is equipped with a hole seeder (3104) which is opposite to the corresponding No. 3 scraper plate (2022) in front and back, the tail of the No. 4 bracket (3103) is hinged with the No. 5 bracket (3106), the movable end of the No. 5 bracket (3106) is provided with a pressure roller (3107) which is opposite to the front and back of the hole seeder (3104), and the No. 4 bracket (3103) is provided with a No. 2 limit rod (3105) which limits the swing amplitude of the No. 5 bracket (3106).

9. The multifunctional film-covering seeder according to claim 8, characterized in that: The film cutting mechanism (34) comprises a No. 3 cross bar (3401), two rod sleeves (3403) symmetrically distributed on the left and right sides are installed at both ends of the No. 3 cross bar (3401), an inner rod (3404) is vertically slid in the rod sleeve (3403), a No. 3 spring (3405) for resetting the inner rod (3404) is arranged in the rod sleeve (3403), a hoop is provided at the lower end of the inner rod (3404), a negative pressure tube (3407) connected to a negative pressure pump is installed in the two hoop rings, suction holes (3408) are evenly opened at the bottom of the negative pressure tube (3407), and the negative pressure tube (3407) is sleeved A No. 4 spring (3409) is installed, and the two ends of the No. 4 spring (3409) are respectively connected to two hoops. The No. 3 crossbar (3401) is equipped with two left-right symmetrical guide rods (3402), and the guide rods (3402) are slidably arranged in a No. 1 guide sleeve (5) on the fixed frame (2). The No. 3 crossbar (3401) is equipped with a No. 3 rack (3419), and the No. 3 rack (3419) is meshed with a No. 5 gear (3420) installed on the No. 1 crossbar (4). The No. 6 gear (3421) on the shaft where the No. 5 gear (3420) is located is meshed with a No. 7 gear (3421) on the No. 1 crossbar (4). The gear (3422) is meshed with the gear (3421) of the sixth gear and the gear (3420) of the fifth gear, the ratio of the pitch circle diameter of the gear (3421) to the gear (3420) of the fifth gear is less than 1, the gear (3422) is meshed with the gear (3423) of the eighth gear on the second rotating shaft (3102), the transmission ratio of the gear (3423) to the gear (3421) of the sixth gear is less than 1, the cross bar (3401) of the third gear is connected to the cross bar (3415) of the fifth gear through the right angle rod (3414), the two ends of the cross bar (3415) are symmetrically hinged with two pull rods (3416), and the pull rods (3416) are hinged with the cross bar (3415) of the fifth gear. A movable rod (3418), an electric heating wire (3417) is connected between the lower ends of the two pull rods (3416), the electric heating wire (3417) is located at the rear side of the negative pressure tube (3407), the two inner rods (3404) are connected by a No. 4 cross bar (3406), the No. 4 cross bar (3406) is connected to a plate seat (3411) by a No. 1 right-angle rod (3410), the plate seat (3411) is located in front of the negative pressure tube (3407), and the lower surface of the plate seat (3411) is evenly provided with pins (3412), and the pins (3412) are provided with barbs (3413).

10. The multifunctional film covering seeder according to claim 8, characterized in that: The pulling mechanism (30) comprises a No. 3 support (3002) and a No. 4 support (3007), wherein the No. 3 support (3002) and the No. 4 support (3007) are respectively mounted on a No. 1 sliding sleeve (2001) and a No. 2 sliding sleeve (3101), wherein a No. 1 pulley (3005) and a No. 2 pulley (3006) are mounted on the No. 4 support (3007), and a steel wire rope (3004) is wound around the No. 1 pulley (3005) and the No. 2 pulley (3006) in an S shape, and No. 2 rotating sleeves (3003) are mounted at both ends of the steel wire rope (3004), and the two No. 2 rotating sleeves (3003) are respectively rotatably arranged on the No. 4 support (3103) and the No. 3 support (3002).

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