Reseeding device for ecological restoration and treatment of degraded grassland grassland
By designing a re-sowing device with spiral plates, the problem of grass damage during re-sowing of star-spotted degraded grasslands in the prior art is solved, the precise placement and coverage of grass seeds is achieved, and the efficiency of grass restoration and grasslands are improved. germination rate of species.
Patent Information
- Application Number
- CN202411776915.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-02-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When resoiling star-spotted grasslands, existing resoil devices can easily cause damage to the surrounding grasslands, resulting in further degradation of the grasslands.
A re-sowing device for ecological restoration and management of degraded grasslands was designed. The spiral plate moved downward through the outer pipe. The spiral plate drove the outer pipe into the soil to avoid turning the grassland and achieve accurate placement and coverage of grass seeds.
The device can perform grass seed resoil without turning the grass, reduce damage to the surrounding grassland, prevent further degradation of grassland, and increase the germination rate of grassland.
Smart Images
Figure CN119422537A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of grassland sowing equipment, and in particular to a reseeding device for ecological restoration and management of degraded grasslands. Background Art
[0002] Grassland degradation refers to the phenomenon that the vegetation coverage of grassland decreases due to natural and human factors. From the perspective of vegetation, the number of high-quality grass plants in the grassland decreases, and the grassland surface is exposed in a large area or in a star-shaped pattern. At this time, it is necessary to reseed the degraded grassland in time to prevent further degradation. Using a reseeding device to assist in grassland reseeding can improve the efficiency of reseeding.
[0003] The core components of the existing overseeding device include a hopper and a plow. The plow is first used to turn over a planting ditch at the defective part of the turf, and then the hopper is used to put grass seeds into the planting ditch, and then the plow is used to cover the grass seeds in the planting ditch with soil, thereby completing the grass seed overseeding.
[0004] However, the above-mentioned overseeding device can only be used for overseeding work when large-scale grassland degradation occurs. When overseeding grassland with star-spotted degradation, the plow can easily cause damage to the grassland around the overseeding area when turning the grassland. The grass plants around the overseeding area are relatively fragile, which can easily lead to further degradation of the grassland. Summary of the invention
[0005] The purpose of the present invention is to overcome the problems in the prior art and provide a reseeding device for ecological restoration and management of degraded grassland. When reseeding the defective positions on the degraded grassland, there is no need to turn the grassland, thereby avoiding damage to the surrounding grassland caused by the reseeding of grass seeds and preventing further degradation of the grassland.
[0006] The present invention provides a reseeding device for ecological restoration and management of degraded grasslands, comprising a vehicle body and a hopper, wherein the hopper is arranged on the top of the vehicle body and is used for placing grass seeds, and further comprising:
[0007] An outer pipe is vertically arranged, and the outer pipe is pivotally connected to the vehicle body;
[0008] The spiral plate is arranged outside the outer pipe. When the bottom end of the spiral plate is inserted into the soil, the outer pipe is driven to rotate, and the soil can drive the outer pipe to move downward through the spiral plate.
[0009] An inner pipe is arranged in the outer pipe, the pipe hole of the inner pipe is connected with the hopper opening of the hopper, a first material passing hole is arranged on the side wall of the bottom end of the inner pipe, and the pipe hole of the inner pipe is connected with the pipe hole of the outer pipe through the first material passing hole;
[0010] A cone is disposed at the bottom end of the inner pipe, the cone is inverted, the large end surface of the cone is connected to the inner pipe, and the large end surface of the cone can fit with the bottom end of the pipe hole of the outer pipe to close the bottom end of the pipe hole of the outer pipe;
[0011] The lifting mechanism is connected to the top end of the inner pipe, and is used to drive the inner pipe to move in a vertical direction relative to the outer pipe.
[0012] Preferably, the outer wall of the outer pipe is provided with an external thread, the external thread is arranged above the spiral plate, the vehicle body is provided with a sleeve, the inner wall of the sleeve is provided with an internal thread, the internal thread is threadedly connected with the external thread, when the outer pipe rotates, under the action of the internal thread and the external thread, the outer pipe drives the cone at its lower end to move downward until the bottom end of the spiral plate is inserted into the soil, and the external thread is disconnected from the internal thread.
[0013] Preferably, a first gear is provided outside the outer pipe, the first gear is toothed with a power device, the first gear is provided with a through hole, the outer wall of the outer pipe is slidably connected to the through hole, the outer wall of the outer pipe is provided with a vertical limiting groove, a limiting slider is slidably connected in the limiting groove, the limiting slider is fixedly connected to the inner wall of the through hole of the first gear, the limiting groove and the limiting slider are used to limit the rotation of the first gear relative to the outer pipe, the outer wall of the outer pipe is provided with a retaining ring, a spring is provided between the retaining ring and the first gear, and the spring is used to apply a vertical upward elastic force to the outer pipe.
[0014] Preferably, the lifting mechanism includes a cylinder body and a piston, the cylinder body is vertically arranged outside the inner pipe, the cylinder body is fixedly connected to the outer wall of the inner pipe, the inner pipe passes through the inner cavity of the cylinder body, the piston is connected to the top end of the outer pipe, the piston is slidably connected to the inner cavity of the cylinder body, and a sealed cavity is formed between the inner wall of the cylinder body, the outer wall of the inner pipe and the piston, and the sealed cavity is connected to a hydraulic control circuit.
[0015] Preferably, a throttling mechanism is provided between the hopper mouth of the hopper and the tube hole of the inner pipe, and the throttling mechanism includes a sleeve and a rotating shaft. The sleeve is horizontally arranged below the hopper mouth, the sleeve is fixedly connected to the vehicle body, and the side wall of the sleeve is provided with a second material passing hole and a third material passing hole. The rotating shaft is pivotally connected in the sleeve, and the side wall of the rotating shaft is provided with a groove. The groove can be connected to the hopper mouth through the second material passing hole, and the groove can be connected to the tube hole of the inner pipe through the third material passing hole.
[0016] Preferably, the cylinder body is connected with a connecting plate, the connecting plate is provided with a vertical rack, the rotating shaft is provided with a second gear, the second gear is gear-connected with the rack, when the outer pipe drives the cone to move upward to above the ground through the inner pipe, the inner pipe drives the rotating shaft to rotate through the connecting plate, the rack and the second gear until the groove is connected to the third material through hole, and when the cone moves downward to be inserted into the soil, the rotating shaft rotates to the groove to be connected to the second material through hole.
[0017] Preferably, a wedge block is provided on the large end face of the cone, and the wedge block is used to guide the grass seeds when the large end face of the cone loses contact with the bottom end of the tube hole of the outer pipe, so that the grass seeds can slide off the large end face of the cone.
[0018] Preferably, the spiral plate has multiple specifications, and the spiral plates of each specification have different helicity.
[0019] Preferably, the outer wall of the cone is provided with a wear-resistant coating.
[0020] Preferably, the inner pipe is detachably connected to the outer pipe.
[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: a reseeding device for ecological restoration and management of degraded grasslands of the present invention drives the spiral plate outside thereof to move downward through an outer pipe until the bottom end of the spiral plate is inserted into the soil, and the outer pipe drives the spiral plate to rotate forward, and the soil can drive the outer pipe to move downward through the spiral plate, thereby screwing the spiral plate and the outer pipe into the soil, and when the cone reaches a predetermined depth in the soil, the lifting mechanism drives the inner pipe to move downward relative to the outer pipe, and the pipe hole of the inner pipe is connected to the outside through the first material passing hole and the pipe hole of the outer pipe. Then the outer pipe reverses with the spiral plate, and the grass seeds flow out of the outer pipe through the first feeding hole and the tube hole of the outer pipe. When the spiral plate reverses, the soil will apply a vertical upward thrust to the spiral plate and the outer pipe, thereby selecting the outer pipe and the spiral plate out of the soil, and the grass seeds are left in the soil. As the spiral plate rotates in the direction, the soil can be loosened under the action of the spiral plate, and the loose soil will slide down to cover the grass seeds, thereby avoiding turning over the grass when inserting the grass seeds, thereby avoiding damage to the surrounding grass during the process of reseeding the grass seeds and preventing further degradation of the grass.
[0022] By setting external threads and internal threads, after the bottom end of the spiral plate is inserted into the soil, the downward force applied by the soil to the spiral plate can be switched in time to drive the outer pipe to move downward, thereby preventing the spiral plate from compacting the soil, thereby ensuring that the soil can normally slide down to cover the grass seeds and ensure the germination rate of the reseeded grass seeds. The cylinder of the lifting mechanism moves downward relative to the piston. Since the cylinder is fixedly connected to the outer wall of the inner pipe, the inner pipe is driven to move downward. The inner pipe moves downward relative to the outer pipe, so that the pipe hole of the inner pipe is connected to the outside through the first feed hole and the pipe hole of the outer pipe, thereby releasing the grass seeds into the deep soil, achieving accurate placement of the grass seeds and ensuring the germination rate of the inserted grass seeds. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of the present invention;
[0024] Figure 2 It is a structural schematic diagram of the AA surface of the present invention;
[0025] Figure 3 It is a structural schematic diagram of the BB surface of the present invention;
[0026] Figure 4 It is a structural schematic diagram of the throttling mechanism of the present invention.
[0027] Description of reference numerals:
[0028] 101. Car body, 102. Hopper, 103. External pipe, 104. Spiral plate, 105. Internal pipe, 106. First feeding hole, 107. Conical body, 108. Lifting mechanism, 201. External thread, 202. Casing, 301. First gear, 302. Power device, 303. Limiting slide groove, 304. Limiting slider, 305. Retaining ring, 306. Spring, 401. Cylinder body, 402. Piston, 403. Sealing chamber, 501. Bushing, 502. Rotating shaft, 503. Second feeding hole, 504. Third feeding hole, 505. Groove, 601. Connecting plate, 602. Rack, 603. Second gear, 7. Wedge block. DETAILED DESCRIPTION
[0029] The following is combined with Figure 1-Figure 4 , the specific implementation of the present invention is described in detail, but it should be understood that the protection scope of the present invention is not limited by the specific implementation. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0030] like Figure 1-Figure 4As shown, the overseeding device for ecological restoration and management of degraded grassland provided by the present invention includes a vehicle body 101 and a hopper 102. The hopper 102 is arranged on the top of the vehicle body 101. The hopper 102 is used to put grass seeds. It also includes: an outer pipe 103, a spiral plate 104, an inner pipe 105, a cone 107 and a lifting mechanism 108. The outer pipe 103 is vertically arranged, and the outer pipe 103 is pivotally connected to the vehicle body 101; the spiral plate 104 is arranged outside the outer pipe 103. When the bottom end of the spiral plate 104 is inserted into the soil, the outer pipe 103 is driven to rotate, and the soil can drive the outer pipe 103 to move downward through the spiral plate 104; the inner pipe 105 is arranged inside the outer pipe 103, and the inner pipe 105 is arranged inside the outer pipe 103. The tube hole of the pipe 105 is connected with the hopper mouth of the hopper 102, and the bottom end side wall of the inner pipe 105 is provided with a first material passing hole 106, and the tube hole of the inner pipe 105 is connected with the tube hole of the outer pipe 103 through the first material passing hole 106; a cone 107 is provided at the bottom end of the inner pipe 105, and the cone 107 is inverted, and the large end surface of the cone 107 is connected with the inner pipe 105, and the large end surface of the cone 107 can fit with the bottom end of the tube hole of the outer pipe 103 to close the bottom end of the tube hole of the outer pipe 103; a lifting mechanism 108 is connected to the top end of the inner pipe 105, and the lifting mechanism 108 is used to drive the inner pipe 105 to move in the vertical direction relative to the outer pipe 103.
[0031] The working principle of the above embodiment is briefly described:
[0032] When the device is in use, the vehicle body 101 is pushed to the degraded defective position on the grass, and then the outer pipe 103 is pressed down. Since the bottom end of the pipe hole of the outer pipe 103 fits with the large end surface of the cone 107, the outer pipe 103 pushes the cone 107 at its bottom to move downward, and the cone 107 will be inserted into the soil at the defective position. At the same time, the outer pipe 103 will move downward with the spiral plate 104 outside it until the bottom end of the spiral plate 104 is inserted into the soil, and then the outer pipe 103 will be driven to rotate forward. The outer pipe 103 drives the spiral plate 104 to rotate forward, and the soil can drive the outer pipe 103 to move downward through the spiral plate 104, thereby screwing the spiral plate 104 and the outer pipe 103 into the soil. When the cone 107 reaches a predetermined depth in the soil, the lifting mechanism 108 is controlled to operate, and the lifting mechanism 108 drives the inner pipe 105 to move downward relative to the outer pipe 103, so that the bottom end of the pipe hole of the outer pipe 103 is out of contact with the large end surface of the cone 107. At this time, the pipe hole of the inner pipe 105 is connected with the pipe hole of the outer pipe 103 through the first material passing hole 106, and the pipe hole of the outer pipe 103 is connected with the outside. Then the outer pipe 103 is driven to reverse, and the outer pipe 103 reverses with the spiral plate 104, and the grass seeds flow out of the hopper 102, then flow into the tube hole of the inner pipe 105, and then flow out of the outer pipe 103 through the first material hole 106 and the tube hole of the outer pipe 103. When the spiral plate 104 reverses, the soil will apply a vertical upward thrust to the spiral plate 104 and the outer pipe 103, so that the outer pipe 103 and the spiral plate 104 are selected out of the soil, and the grass seeds are left in the soil, and as the spiral plate 104 rotates in the direction, the soil can be loosened under the action of the spiral plate 104, and the loose soil will slide down to cover the grass seeds, thereby completing the reseeding of the grass seeds.
[0033] The overseeding device for ecological restoration and management of degraded grassland of the present invention does not need to turn the grassland when overseeding the defective positions on the degraded grassland, thereby reducing the impact on the surrounding grassland, avoiding damage to the surrounding grassland caused by the overseeding of grass seeds, and preventing further degradation of the grassland.
[0034] On the basis of the above embodiment, in order to prevent the spiral plate 104 from compacting the soil, it is ensured that the soil can slide normally to cover the grass seeds and ensure the germination rate of the reseeded grass seeds.
[0035] like Figure 1 and Figure 2As shown, the outer wall of the outer pipe 103 is provided with an external thread 201, and the external thread 201 is arranged above the spiral plate 104. The vehicle body 101 is provided with a sleeve 202, and the inner wall of the sleeve 202 is provided with an internal thread, and the internal thread is threadedly connected with the external thread 201. When the outer pipe 103 rotates, under the action of the internal thread and the external thread 201, the outer pipe 103 drives the cone 107 at its lower end to move downward until the bottom end of the spiral plate 104 is inserted into the soil, and the external thread 201 is disconnected from the internal thread.
[0036] When the cone 107 is inserted into the soil, the outer pipe 103 is rotated forwardly. Since the outer thread 201 of the outer pipe 103 is threadedly connected with the inner thread of the inner wall of the sleeve 202, the outer pipe 103 is driven to move downward under the action of the inner thread and the outer thread 201. The outer pipe 103 drives the cone 107 at its lower end to move downward, thereby inserting the cone 107 into the soil until the bottom end of the spiral plate 104 on the outer pipe 103 is inserted into the soil, and the outer thread 201 is disconnected from the inner thread. At this time, when the outer pipe 103 is driven to rotate, the spiral plate 104 is automatically screwed into the soil. By setting the outer thread 201 and the inner thread, after the bottom end of the spiral plate 104 is inserted into the soil, it can be switched in time to the downward force applied by the soil to the spiral plate 104 to drive the outer pipe 103 to move downward, thereby preventing the spiral plate 104 from compacting the soil, thereby ensuring that the soil can normally slide down to cover the grass seeds and ensure the germination rate of the reseeded grass seeds.
[0037] As a preferred solution, Figure 1-Figure 3As shown, the outer pipe 103 is provided with a first gear 301 outside, the first gear 301 is toothed with a power device 302, the first gear 301 is provided with a through hole, the outer wall of the outer pipe 103 is slidably connected in the through hole, the outer wall of the outer pipe 103 is provided with a vertical limiting groove 303, the limiting groove 303 is slidably connected with a limiting slider 304, the limiting slider 304 is fixedly connected to the inner wall of the through hole of the first gear 301, the limiting groove 303 and the limiting slider 304 are used to limit the rotation of the first gear 301 relative to the outer pipe 103, the outer wall of the outer pipe 103 is provided with a retaining ring 305, a spring 306 is provided between the retaining ring 305 and the first gear 301, and the spring 306 is used to apply a vertical upward elastic force to the outer pipe 103. The power device 302 drives the first gear 301 to rotate, and the first gear 301 drives the outer pipe 103 to rotate through the limiting slide groove 303 and the limiting slider 304, thereby driving the spiral plate 104 to rotate, and the thrust applied by the soil to the spiral plate 104 drives the outer pipe 103 to move downward, and the limiting slider 304 slides in the limiting slide groove 303, and the retaining ring 305 moves in the direction close to the first gear 301, thereby squeezing the spring 306, thereby ensuring that the power device 302 can continuously drive the outer pipe 103 to rotate during the process of the spiral plate 104 driving the outer pipe 103 to move downward. When the power device 302 drives the outer pipe 103 to reverse and the spiral plate 104 is screwed out of the soil, under the action of the elastic force of the spring 306, the external thread 201 outside the outer pipe 103 can be offset against the internal thread inside the sleeve 202. At this time, as the power device 302 drives the outer pipe 103 to reverse, the external thread 201 can be reconnected with the internal thread, so that the entire device can achieve continuous grass seeding in small defective areas.
[0038] As a preferred solution, Figure 1 , Figure 2 and Figure 4As shown, the lifting mechanism 108 includes a cylinder body 401 and a piston 402, the cylinder body 401 is vertically arranged outside the inner pipe 105, the cylinder body 401 is fixedly connected to the outer wall of the inner pipe 105, the inner pipe 105 passes through the inner cavity of the cylinder body 401, the piston 402 is connected to the top end of the outer pipe 103, the piston 402 is slidably connected to the inner cavity of the cylinder body 401, and a sealed cavity 403 is formed between the inner wall of the cylinder body 401, the outer wall of the inner pipe 105 and the piston 402, and the sealed cavity 403 is connected to a hydraulic control circuit. Initially, the cylinder 401 is filled with hydraulic oil, and the piston 402 is at the bottom of the cylinder 401. When the lifting mechanism 108 drives the inner pipe 105 to move downward relative to the outer pipe 103, the hydraulic control circuit is controlled to operate, and the hydraulic control circuit sucks hydraulic oil from the cylinder 401. Since the spiral plate 104 outside the outer pipe 103 has also been screwed into the soil at this time, the outer pipe 103 is fixed under the action of the resistance applied by the soil to the spiral plate 104, and the piston 402 connected to the outer pipe 103 is fixed. Therefore, the cylinder 401 moves downward relative to the piston 402. Since the cylinder 401 is fixedly connected to the outer wall of the inner pipe 105, the inner pipe 105 is driven to move downward. The inner pipe 105 moves downward relative to the outer pipe 103, so that the tube hole of the inner pipe 105 is connected to the outside through the first material hole 106 and the tube hole of the outer pipe 103, so that the grass seeds are released into the deep soil, the grass seeds are accurately placed, and the germination rate of the inserted grass seeds is guaranteed.
[0039] As a preferred solution, Figure 1 , Figure 2 and Figure 4As shown, a throttling mechanism is provided between the hopper mouth of the hopper 102 and the tube hole of the inner pipe 105, and the throttling mechanism includes a sleeve 501 and a rotating shaft 502. The sleeve 501 is horizontally arranged below the hopper mouth, the sleeve 501 is fixedly connected to the vehicle body 101, and the side wall of the sleeve 501 is provided with a second material passing hole 503 and a third material passing hole 504. The rotating shaft 502 is pivotally connected in the sleeve 501, and the side wall of the rotating shaft 502 is provided with a groove 505. The groove 505 can be connected with the hopper mouth through the second material passing hole 503, and the groove 505 can be connected with the tube hole of the inner pipe 105 through the third material passing hole 504. When the outer pipe 103 and the inner pipe 105 are inserted into the soil, the rotating shaft 502 is rotated until the groove 505 on the rotating shaft 502 is connected with the hopper port of the hopper 102 through the second feeding hole 503 on the sleeve 501, and the grass seeds in the hopper 102 enter the groove 505 of the rotating shaft 502 through the hopper port and the second feeding hole 503; and when the outer pipe 103 and the inner pipe 105 are not inserted into the soil, and the side wall of the outer pipe 103 closes the first feeding hole 106 on the inner pipe 105, the rotating shaft 502 is rotated until the groove 505 on the rotating shaft 502 is connected with the tube hole of the inner pipe 105 through the third feeding hole 504, and the grass seeds in the groove 505 flow through the tube hole of the inner pipe 105 to the upper end surface of the cone 107, thereby ensuring the continuity of grass seed feeding when the device is continuously inserted.
[0040] As a preferred solution, Figure 1 , Figure 2 and Figure 4As shown, the cylinder body 401 is connected with a connecting plate 601, and a vertical rack 602 is provided on the connecting plate 601. A second gear 603 is provided on the rotating shaft 502, and the second gear 603 is gear-engaged with the rack 602. When the outer pipe 103 drives the cone 107 to move upward to above the ground through the inner pipe 105, the inner pipe 105 drives the rotating shaft 502 to rotate to the groove 505 and communicate with the third material hole 504 through the connecting plate 601, the rack 602 and the second gear 603. When the cone 107 moves downward to be inserted into the soil, the rotating shaft 502 rotates to the groove 505 and communicates with the second material hole 503. By providing the connecting plate 601 and the rack 602, when the spiral plate 104 drives the outer pipe 103 to move downward, the outer pipe 103 drives the cylinder 401 to move downward through the piston 402, thereby driving the connecting plate 601 to move downward, thereby driving the rack 602 to move downward, and the rack 602 drives the second gear 603 to rotate forward, thereby driving the rotating shaft 502 to rotate forward. When the outer pipe 103 moves to a predetermined depth in the soil, the rack 602 drives the rotating shaft 502 to rotate until the groove 505 on the rotating shaft 502 is connected to the hopper port of the hopper 102 through the second material passing hole 503, so that When the outer pipe 103 drives the inner pipe 105 to rise, the outer pipe 103 drives the connecting plate 601 and the rack 602 to move upward, thereby driving the second gear 603 to reverse, thereby driving the rotating shaft 502 to rotate in the opposite direction. When the inner pipe 105 rises to the top of the inner pipe 105 and abuts against the shaft sleeve 501, the groove 505 on the rotating shaft 502 rotates to be connected with the third material passing hole 504. The grass seeds in the groove 505 can be accurately delivered into the tube hole of the inner pipe 105 to complete the material discharge. In this process, the grass seeds can be prevented from scattering, thereby further ensuring the germination rate of the grass seeds.
[0041] As a preferred solution, Figure 1 and Figure 1 As shown, a wedge block 7 is provided on the large end surface of the cone 107, and the wedge block 7 is used to guide the grass seeds when the large end surface of the cone 107 is out of contact with the bottom end of the tube hole of the outer pipe 103, so that the grass seeds can slide off the large end surface of the cone 107. By providing the wedge block 7, when the large end surface of the cone 107 is out of contact with the bottom end of the tube hole of the outer pipe 103, the conical surface of the cone 107 can guide the grass seeds on the large end surface of the cone 107, so that the grass seeds in the inner pipe 105 can smoothly slide off the large end surface of the cone 107, thereby ensuring the normal operation of the entire device.
[0042] As a preferred solution, Figure 1 and Figure 2As shown, the spiral plate 104 has multiple specifications, and each specification of the spiral plate 104 has a different degree of helicity. The spiral plate 104 is set to multiple specifications. Since each specification of the spiral plate 104 has a different degree of helicity, when the outer pipe 103 rotates at the same angle, under the action of the spiral plates 104 with different degrees of helicity, the outer pipe 103 is inserted into the soil to different depths, thereby adapting to the insertion of grass seeds with different planting depth requirements, thereby improving the applicability of the entire device.
[0043] As a preferred solution, Figure 1 As shown, the outer wall of the cone 107 is provided with a wear-resistant coating. By providing the wear-resistant coating on the outer wall of the cone 107, the wear resistance of the cone 107 can be improved, thereby improving the service life of the entire device.
[0044] As a preferred solution, Figure 1 As shown, the inner pipe 105 is detachably connected to the outer pipe 103. By arranging the inner pipe 105 and the outer pipe 103 as a detachable connection, the outer pipe 103 can be easily disassembled and assembled, thereby facilitating maintenance of the device.
[0045] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.
Claims
1. A reseeding device for ecological restoration and management of degraded grassland, comprising a vehicle body (101) and a hopper (102), wherein the hopper (102) is arranged on the top of the vehicle body (101), and the hopper (102) is used to put grass seeds, characterized in that: Also includes: An outer pipe (103) is arranged vertically, and the outer pipe (103) is pivotally connected to the vehicle body (101); The spiral plate (104) is arranged outside the outer pipe (103). When the bottom end of the spiral plate (104) is inserted into the soil, the outer pipe (103) is driven to rotate, and the soil can drive the outer pipe (103) to move downward through the spiral plate (104); An inner pipe (105) is arranged in the outer pipe (103), the pipe hole of the inner pipe (105) is connected to the hopper opening of the hopper (102), a first material passing hole (106) is arranged on the side wall of the bottom end of the inner pipe (105), and the pipe hole of the inner pipe (105) is connected to the pipe hole of the outer pipe (103) through the first material passing hole (106); A cone (107) is disposed at the bottom end of the inner pipe (105). The cone (107) is inverted, and the large end surface of the cone (107) is connected to the inner pipe (105). The large end surface of the cone (107) can fit with the bottom end of the tube hole of the outer pipe (103) to seal the bottom end of the tube hole of the outer pipe (103); A lifting mechanism (108) is connected to the top end of the inner pipe (105), and the lifting mechanism (108) is used to drive the inner pipe (105) to move in a vertical direction relative to the outer pipe (103).
2. The overseeding device for ecological restoration and management of degraded grassland as claimed in claim 1, characterized in that: The outer wall of the outer pipe (103) is provided with an external thread (201), and the external thread (201) is arranged above the spiral plate (104). The vehicle body (101) is provided with a sleeve (202), and the inner wall of the sleeve (202) is provided with an internal thread, and the internal thread is threadedly connected with the external thread (201). When the outer pipe (103) rotates, under the action of the internal thread and the external thread (201), the outer pipe (103) drives the cone (107) at its lower end to move downward until the bottom end of the spiral plate (104) is inserted into the soil, and the external thread (201) is disconnected from the internal thread.
3. The overseeding device for ecological restoration and management of degraded grassland as claimed in claim 2, characterized in that: The outer pipe (103) is provided with a first gear (301) on the outside, the first gear (301) is gear-connected with a power device (302), the first gear (301) is provided with a through hole, the outer wall of the outer pipe (103) is slidably connected to the through hole, the outer wall of the outer pipe (103) is provided with a vertical limit slide groove (303), the limit slide groove (303) is slidably connected with a limit slider (304), the limit slider (304) is fixedly connected to the inner wall of the through hole of the first gear (301), the limit slide groove (303) and the limit slider (304) are used to limit the first gear (301) from rotating relative to the outer pipe (103), the outer wall of the outer pipe (103) is provided with a retaining ring (305), a spring (306) is provided between the retaining ring (305) and the first gear (301), and the spring (306) is used to apply a vertical upward elastic force to the outer pipe (103).
4. The overseeding device for ecological restoration and management of degraded grassland as claimed in claim 1, characterized in that: The lifting mechanism (108) comprises a cylinder body (401) and a piston (402). The cylinder body (401) is vertically arranged outside the inner pipe (105). The cylinder body (401) is fixedly connected to the outer wall of the inner pipe (105). The inner pipe (105) passes through the inner cavity of the cylinder body (401). The piston (402) is connected to the top end of the outer pipe (103). The piston (402) is slidably connected to the inner cavity of the cylinder body (401). A sealed cavity (403) is formed between the inner wall of the cylinder body (401), the outer wall of the inner pipe (105) and the piston (402). The sealed cavity (403) is connected to a hydraulic control circuit.
5. The overseeding device for ecological restoration and management of degraded grassland as claimed in claim 4, characterized in that: A throttling mechanism is provided between the hopper opening of the hopper (102) and the tube hole of the inner pipe (105), and the throttling mechanism comprises a shaft sleeve (501) and a rotating shaft (502). The shaft sleeve (501) is horizontally arranged below the hopper opening, the shaft sleeve (501) is fixedly connected to the vehicle body (101), a second material passing hole (503) and a third material passing hole (504) are provided on the side wall of the shaft sleeve (501), the rotating shaft (502) is pivotally connected in the shaft sleeve (501), a groove (505) is provided on the side wall of the rotating shaft (502), the groove (505) can be communicated with the hopper opening through the second material passing hole (503), and the groove (505) can be communicated with the tube hole of the inner pipe (105) through the third material passing hole (504).
6. The overseeding device for ecological restoration and management of degraded grassland as claimed in claim 5, characterized in that: The cylinder body (401) is connected to a connecting plate (601), and a vertical rack (602) is provided on the connecting plate (601). A second gear (603) is provided on the rotating shaft (502), and the second gear (603) is gear-engaged with the rack (602). When the outer pipe (103) drives the cone (107) to move upward to above the ground through the inner pipe (105), the inner pipe (105) drives the rotating shaft (502) to rotate to the groove (505) and communicate with the third material passage hole (504) through the connecting plate (601), the rack (602) and the second gear (603). When the cone (107) moves downward to be inserted into the soil, the rotating shaft (502) rotates to the groove (505) and communicates with the second material passage hole (503).
7. The overseeding device for ecological restoration and management of degraded grassland as claimed in claim 1, characterized in that: A wedge block (7) is provided on the large end surface of the cone (107). The wedge block (7) is used to guide the grass seeds when the large end surface of the cone (107) is out of contact with the bottom end of the tube hole of the outer pipe (103), so that the grass seeds can slide off the large end surface of the cone (107).
8. The overseeding device for ecological restoration and management of degraded grassland as claimed in claim 1, characterized in that: The spiral plate (104) has a variety of specifications, and the spiral plate (104) of each specification has a different degree of spirality.
9. The overseeding device for ecological restoration and management of degraded grassland as claimed in claim 1, characterized in that: The outer wall of the cone (107) is provided with a wear-resistant coating.
10. The overseeding device for ecological restoration and management of degraded grasslands according to claim 1, characterized in that: The inner pipe (105) is detachably connected to the outer pipe (103).
Citation Information
Cited By
Dry land millet film side furrow sowing film mulching device
CN119866703A