Drip irrigation and laying dual-purpose wheat seeder

Abstract

The invention discloses a dual-purpose wheat seeder for drip irrigation and laying, and relates to the technical field of agricultural machinery. The drip irrigation and laying dual-purpose wheat seeding machine comprises a seeding device and a drip irrigation and laying device arranged behind the seeding device, and the drip irrigation and laying device comprises a mounting box; the furrow opener is positioned below the mounting box and is used for furrowing the drip irrigation tape; the tensioning wheel assembly is located in the mounting box, and the drip irrigation belt passes through the tensioning wheel assembly from top to bottom; a pinch roller; the moving structure is mounted on one side of the mounting box and used for adjusting the position of the tensioning wheel assembly, so that the tensioning degree of the drip irrigation tape is reduced within a short time; according to the dual-purpose wheat seeder for drip irrigation and laying, a drip irrigation tape can be laid in a large farmland, and when the drip irrigation tape reaches the laying position of the main pipe, the redundant drip irrigation tape is released, so that the situation that the drip irrigation tape is easily damaged due to overlarge stress is avoided, and the tightness of connection between the drip irrigation tape and the tee joint can be ensured.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a wheat seeder that can be used for both drip irrigation and paving. Background Art

[0002] Wheat is a major grain crop in my country, ranking among the top in terms of both yield and cultivated area. However, with the continuous advancement of agricultural technology, the potential for wheat yields has reached a bottleneck. Integrated drip irrigation and fertilization is a key component in increasing wheat yields, enabling the reduction of ridges and the expansion of land, while also ensuring precise water and fertilizer supply and efficient utilization.

[0003] Patent application number CN202411012729.0 proposes a seeder that integrates drip tape laying and fertilization. This equipment integrates drip tape laying, fertilization and sowing to form a new agricultural equipment; however, the drip tape in this equipment can only be laid on the shallow surface, and the drip tape exposed to the farmland is easily damaged by wind and sun.

[0004] The patent application number CN202411127030.9 proposes an automatic laying device for the terminal drip irrigation tape of a seeding machine. A covering plate is provided in the device, so that the covering plate can be used to cover the drip irrigation tape with soil after laying, thereby avoiding damage to the drip irrigation tape.

[0005] When laying smaller farmland pipelines, the thicker main pipe is generally laid at the edge of the farmland, and then multiple drip irrigation tapes are laid in the farmland. After laying is completed, an opening is made on the main pipe, and a two-way valve is assembled, and finally the drip irrigation tape is assembled on the two-way valve.

[0006] However, for larger farmland, if only a main pipe is installed at the end of the field, the water pressure is insufficient and the drip irrigation effect is poor. Therefore, another main pipe is usually laid in the middle of the farmland, such as Figure 1 As shown, the drip irrigation tape 10 is laid longitudinally, and the main pipe is laid horizontally perpendicular to it. After the drip irrigation tape is laid, the main pipe is laid. The connection method between the drip irrigation tape and the main pipe in the middle section of the farmland is: cut the drip irrigation tape, and assemble a three-way valve on the main pipe, and the other two ends of the three-way valve are respectively connected to the cut drip irrigation tape.

[0007] However, when the drip irrigation tape is laid, its tightness generally does not change much, and there is no redundancy at the junction with the main pipe to connect it to the three-way valve. In practice, it is found that the lack of redundancy in the drip irrigation tape will cause the connecting section to be in a taut state when it is connected. On the one hand, this state will cause the drip irrigation tape to be subjected to excessive stress for a long time and cause it to be damaged. On the other hand, excessive stress will also cause the connection between it and the three-way valve to be loose, which is prone to leakage. Summary of the Invention

[0008] In response to the deficiencies in the prior art, the present invention provides a wheat seeder that can be used for both drip irrigation and laying, which solves the problem that the tightness of the drip tape generally does not change when it is laid, and there is no redundancy at the junction with the main pipe to connect with the three-way valve, resulting in the connecting section being in a taut state when it is connected. On the one hand, this state will cause the drip tape to be subjected to excessive stress for a long time, resulting in damage to it. On the other hand, excessive stress will also cause the connection between it and the three-way valve to be loose.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wheat seeder with both drip irrigation and paving, comprising a sowing device and a drip irrigation and paving device arranged behind the sowing device, wherein the drip irrigation and paving device comprises: Installation box; A furrow opener is located below the installation box and is used to open a furrow for the drip irrigation tape; A tension wheel assembly, the tension wheel assembly is located in the installation box, and the drip irrigation belt passes through the tension wheel assembly from top to bottom; A soil covering plate is located behind the furrow opener and is rotatably mounted on the furrow opener via a pin on the head of the connecting frame; A pressure wheel is located at the tail of the furrow opener and is used to press the drip irrigation belt passing through the tensioning wheel assembly into the furrow; A movable structure is installed on one side of the installation box and is used to adjust the position of the tension wheel assembly so that the tension of the drip irrigation belt can be reduced in a short time; A lifting assembly is provided on the installation box and is used for lifting the soil covering plate when the tension of the drip irrigation belt is reduced.

[0010] Furthermore, an acceleration component is provided between the center axis of the pressure wheel and the pin axis to accelerate the laying of the drip irrigation tape when the tension of the drip irrigation tape is reduced in a short time, so as to form a state where redundant drip irrigation tape is laid on the required paving section and the redundant drip irrigation tape is not covered with soil.

[0011] Furthermore, the lifting assembly includes a steel rope body and a steel rope reel. The steel rope reel is arranged in the installation box. The steel rope reel reels the steel rope body to make the connecting frame rotate on the connecting frame through the pin shaft to lift the covering plate.

[0012] Furthermore, the lifting assembly also includes a winding gear, which is installed on the central axis of the steel rope winding wheel, and a rack plate is engaged above the winding gear. The rack plate is connected to the tensioning wheel assembly, so that the tensioning wheel assembly drives the rack plate to move as the moving structure moves.

[0013] Furthermore, the lifting assembly further includes: An inner core is fixed at the center of the steel rope reel, and the axial direction of the steel rope reel is in the same direction as the moving direction of the tension wheel assembly; A moving rod moves along with the movement of the tension wheel assembly, and the moving rod passes through the inner core. The inner cavity of the inner core is provided with a slider, and the moving rod is provided with a spiral groove adapted to the slider.

[0014] Furthermore, the acceleration component includes: A sector gear is provided on one side of the connecting frame head and is concentric with the pin shaft; Acceleration gear 1, the acceleration gear 1 is located on one side of the sector gear, the acceleration gear 1 and the sector gear can be engaged or not engaged, the acceleration gear 1 is also provided with a coaxial gear 2, one side of the gear 2 is engaged with a gear 3, the lower part of the gear 3 is engaged with a gear 4, and the gear 4 is fixed to one end of the central axis of the pressure wheel; After the connecting frame is lifted by the lifting assembly by 2°-4°, the sector gear and the acceleration gear begin to mesh.

[0015] Furthermore, a limit block is provided on the side edge of the other side of the head of the connecting frame, and an unlocking component is also provided in the installation box. The unlocking component is used to limit the connecting frame to have the required deflection freedom when the connecting frame is not lifted, so that the covering plate can avoid hard objects in the soil, and is used to no longer limit its deflection angle when the connecting frame is lifted.

[0016] Furthermore, the unlocking component includes: A C-shaped frame, which is located on the side of the connecting frame head near the limit block. When the connecting frame is not lifted, the C-shaped frame controls the deflection angle of the connecting frame by limiting the position of the limit block; A pressure rod is fixed on the tension wheel assembly and moves synchronously with the tension wheel assembly. A force-bearing plate is provided on the moving path of the tension wheel assembly in the installation box. A pressure plate is provided between the force-bearing plate and the C-shaped frame, and the force-bearing plate has an inclined surface; Spring 2, the spring 2 is used to connect the load-bearing plate and the bottom surface of the installation box.

[0017] Furthermore, a tension spring is installed between the connecting frame and the installation box, so as to reset the connecting frame after losing its lifting force.

[0018] Furthermore, a front guide wheel is provided at the upper part of the installation box, and a rear guide wheel is provided at the lower part of the installation box, and the drip irrigation belt forms a V-shaped structure between the front guide wheel, the tensioning wheel assembly and the rear guide wheel.

[0019] The present invention has the following beneficial effects: (1) The drip irrigation tape laying and dual-purpose wheat planter can lay drip irrigation tape on a larger farmland, and when the drip irrigation tape reaches the laying position of the main pipe, the redundant drip irrigation tape is released, and the covering plate is raised at this stage, so that it is convenient for the operator to cut the drip irrigation tape and have enough length to connect it to the main pipe, so as to avoid the drip irrigation tape being in a taut state when connected, and avoid the drip irrigation tape being easily damaged due to excessive stress, and also ensure the tightness of the connection between the drip irrigation tape and the tee.

[0020] (2) The wheat planter can lay the drip irrigation tape in two ways by actively rotating the pressure wheel and accelerating the rotation when in use, so as to quickly lay the released drip irrigation tape and ensure the formation of redundant sections, so as to reserve the required length for cutting and assembling the drip irrigation tape on the three-way valve of the main pipe.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a diagram of laying out the main pipe and drip irrigation tape in a larger farmland according to the present invention; Figure 2 It is an overall diagram of the present invention; Figure 3 It is a schematic diagram of the position of the U-shaped frame of the present invention; Figure 4 This is an appearance diagram of the installation box of the present invention; Figure 5 This is a first perspective view of the internal structure of the installation box of the present invention; Figure 6 For the present invention Figure 5 Orthographic projection of Figure 7 This is a schematic structural diagram of a lifting assembly in Embodiment 1 of the present invention; Figure 8 This is a disassembled diagram of the acceleration component of the present invention; Figure 9 For the present invention Figure 8 A magnified view of area A; Figure 10 A schematic diagram of disassembling one of the soil covering plates of the present invention; Figure 11 Another perspective view of the internal structure of the installation box of the present invention; Figure 12 This is a schematic structural diagram of a lifting assembly in the second embodiment of the present invention; Figure 13 For the present invention Figure 12 Magnified view of area B in .

[0023] In the figure, 1. sowing device; 2. pressure wheel; 3. drip irrigation reel support frame; 4. drip irrigation reel; 5. U-shaped frame; 51. installation box; 6. tension wheel assembly; 61. tension wheel body; 62. auxiliary wheel 1; 63. side frame; 64. connecting plate; 65. tension spring; 66. guide rod; 67. limit plate; 7. lifting assembly; 71. steel rope body; 72. steel rope guide roller; 73. steel rope reel; 74. reeling gear; 75. rack plate; 76. inner core; 77. moving rod; 78. spiral groove; 8. Acceleration assembly; 81. Sector gear; 82. Acceleration gear one; 83. Gear two; 84. Gear three; 85. Gear four; 9. Unlocking assembly; 91. Force plate; 92. Pressure plate; 93. C-shaped frame; 94. Spring two; 95. Pressure rod; 10. Drip irrigation tape; 11. Moving structure; 12. Covering plate; 13. Connecting frame; 131. Pin shaft; 132. Limit block; 14. Tension spring; 15. Front guide wheel; 16. Furrow opener; 17. Pressure wheel; 171. Auxiliary wheel two; 18. Rear guide wheel; 19. Smoothing frame. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] The following is based on Figures 1-13 The invention provides a dual-purpose wheat seeder capable of both drip irrigation and paving, as provided in an embodiment of the invention.

[0027] Example 1 See also Figure 2 and Figure 3 An embodiment of the present invention provides a technical solution, a wheat seeder that can be used for both drip irrigation and laying, including a sowing device 1, a drip irrigation laying device arranged behind the sowing device 1, and a pressing wheel 2 arranged behind the drip irrigation tape laying device. The device is assembled on a vehicle, the sowing device 1 is used for sowing while the vehicle is moving, the drip irrigation laying device is used for laying the drip irrigation tape 10 while the vehicle is moving, and the pressing wheel 2 is used for compacting the soil.

[0028] Combine Figure 2-Figure 7 The drip irrigation laying device shown includes a drip irrigation roll support frame 3 and a drip irrigation reel 4 arranged on the drip irrigation roll support frame 3. The drip irrigation roll support frame 3 is mounted on the whole machine frame. A U-shaped frame 5 is also provided on the frame for assembling a furrow opener 16 thereunder. The furrow opener 16 is used to gradually furrow the soil in the direction of the vehicle. An installation box 51 is also provided on the U-shaped frame 5. In order to enable the drip irrigation belt 10 to enter the furrow formed by the furrow opener 16 during the driving of the vehicle, a front guide wheel 15 is provided at the upper part of the installation box 51, a rear guide wheel 18 is provided at the lower part of the installation box 51, a tensioning wheel assembly 6 is provided on one side of the middle part of the installation box 51, and a pressure wheel 17 is provided at the tail end of the furrow opener 16. The drip irrigation belt unwound from the drip irrigation reel 4 passes through the front guide wheel 15, the tensioning wheel assembly 6, the rear guide wheel 18 and the pressure wheel 17 in sequence, and is pressed into the furrow by the pressure wheel 17.

[0029] Preferably, an auxiliary wheel 2 171 is provided on a side of the pressure wheel 17 close to the drip irrigation tape 10 .

[0030] Furthermore, an openable door is provided on the installation box 51 to facilitate operators to pass the drip irrigation tape 10 through each wheel.

[0031] Preferably, a smoothing frame 19 is further provided on the frame. After the drip irrigation belt 10 is released from the drip irrigation reel 4, it can pass through the smoothing frame 19 so that the smoothing frame 19 smoothes it. The smoothing frame 19 includes a steel pipe with a rotatable PVC plastic pipe.

[0032] The reason for setting the tension wheel assembly 6 is that the vehicle does not travel at a constant speed during driving, and there will inevitably be uneven driving speeds. The tension wheel assembly 6 can be used to compensate for this speed difference, thereby preventing the drip irrigation tape 10 from being laid too tight or too loose.

[0033] Since a large farmland needs to lay a main pipeline in the middle of the farmland, the drip irrigation belt 10 needs to be cut in the area where the main pipeline is laid in the middle. In order to facilitate the operator to cut the drip irrigation belt 10 and reserve sufficient installation length, the drip irrigation belt 10 in the present invention forms a V-shaped structure between the front guide wheel 15, the tensioning wheel assembly 6 and the rear guide wheel 18, and a mobile structure 11 is provided. The mobile structure 11 is installed on one side of the installation box 51 and is used to adjust the position of the tensioning wheel assembly 6, so that the tension of the drip irrigation belt is reduced in a short time. Therefore, when the vehicle drives to the area in the middle of the farmland where the main pipeline needs to be assembled, the driver can control the mobile structure 11 to move Figure 6 As shown in the perspective, it moves to the left, so that the tension of the tensioning wheel assembly 6 on the drip irrigation tape 10 is reduced as a whole. At this time, more drip irrigation tape 10 is released, thereby providing sufficient connection length for the cut drip irrigation tape 10, avoiding the operator pulling the drip irrigation tape 10 hard to assemble it on the three-way valve of the main pipe, causing the already laid drip irrigation tape 10 to be too tight.

[0034] Optionally, the movable structure 11 is a pneumatic cylinder, a hydraulic cylinder or an electric telescopic rod.

[0035] like Figure 5 and Figure 7 As shown, the tensioning wheel assembly 6 mentioned above also has a certain tensioning performance when the mobile structure 11 does not drive it to move. Specifically, the tensioning wheel assembly 6 includes a tensioning wheel body 61 and an auxiliary wheel 62 provided on one side of the tensioning wheel body 61. The drip irrigation belt 10 can pass through the tensioning wheel body 61 and the auxiliary wheel 62. A side frame 63 is provided at the end of the tensioning wheel body 61 and the auxiliary wheel 62. The side frame 63 can move on the inner wall of the installation box 51 along the driving direction of the mobile structure 11. A guide rod 66 is provided in the side frame 63 to guide A limit plate 67 is provided at one end of the rod 66, and a connecting plate 64 is provided at the other end. A tensioning spring 65 is provided between the connecting plate 64 and the side frame 63. The other side of the connecting plate 64 is connected to the mobile structure 11. When the mobile structure 11 does not drive the connecting plate 64 to move, the connecting plate 64 locks the approximate position of the entire tensioning wheel assembly 6. At this time, the tension of the drip irrigation belt 10 can be adjusted by the tensioning spring 65. When the mobile structure 11 is working, the connecting plate 64 will first drive the guide rod 66 to move, and then drag the entire tensioning wheel assembly 6 to move together.

[0036] Combine Figures 6-10 As shown, in order to reduce the impact of external weathering on the drip irrigation belt 10, the drip irrigation belt 10 entering the soil groove is covered with soil. Therefore, a covering plate 12 is also provided here. The covering plate 12 is two circular plates. The two circular plates are located behind the furrow opener 16 and on both sides of the furrow. They are used to re-cover the soil generated when the furrow opener 16 opens the furrow on the drip irrigation belt 10.

[0037] Preferably, the two discs are rotatably mounted on the furrow opener 16 via the pin 131 at the head of the connecting frame 13, so that they can move along with the furrow opener 16 and can produce a certain angle of deflection on the furrow opener 16 to avoid being damaged when encountering hard materials in the soil.

[0038] Combine Figure 7 and Figure 10As shown, it should be noted that when the vehicle reaches the area where the drip irrigation belt 10 needs to be connected to the main pipe, the tensioning wheel assembly 6 releases the drip irrigation belt 10. At this time, there is no need to cover the released redundant drip irrigation belt 10 with soil. Therefore, a lifting assembly 7 is provided here. The lifting assembly 7 is provided on the installation box 51, and is used to lift the covering plate 12 when the tension of the drip irrigation belt is reduced. At this time, the covering plate 12 no longer covers the soil, thereby achieving the desired purpose. The desired purpose is that when the drip irrigation belt 10 reaches the area connected to the main pipe, the redundant drip irrigation belt 10 is released and the redundant drip irrigation belt 10 is no longer covered with soil, so as to facilitate the operator to cut the drip irrigation belt 10 and have sufficient length to connect it to the main pipe, thereby avoiding the drip irrigation belt 10 being in a tightened state when connected.

[0039] Therefore, the dual-purpose wheat seeder for drip irrigation and laying provided in an embodiment of the present invention can lay the drip irrigation tape 10 on a larger farmland, and when the drip irrigation tape 10 reaches the laying position of the main pipe, the redundant drip irrigation tape 10 is released, and the covering plate 12 is lowered and raised at this stage, so as to facilitate the operator to cut the drip irrigation tape 10 and have sufficient length to connect it to the main pipe, thereby avoiding the drip irrigation tape 10 being in a taut state when connected.

[0040] During actual operation, although the tensioning wheel assembly 6 can quickly release the drip irrigation tape 10, the pressure wheel 17 cannot quickly lay it down. Therefore, in this embodiment, an acceleration assembly 8 is also provided between the center axis of the pressure wheel 17 and the pin shaft 131, so that when the drip irrigation tape 10 is released in a short time, the pressure wheel 17 can accelerate the laying of the drip irrigation tape 10, forming a state in which redundant drip irrigation tapes 10 are laid on the required paving section, and the redundant drip irrigation tapes are not covered with soil.

[0041] Specifically, the lifting assembly 7 includes a steel rope body 71 and a steel rope reel 73. The steel rope reel 73 is arranged in the installation box 51. The steel rope reel 73 reels the steel rope body 71 to make the connecting frame 13 rotate on the connecting frame 13 through the pin shaft 131 to lift the covering plate 12.

[0042] In this embodiment, the steel rope body 71 is fixed between the steel rope reel 73 and the connecting frame 13. Therefore, when the steel rope reel 73 reels the steel rope body 71, the steel rope body 71 can pull the connecting frame 13, causing it and the pin shaft 131 to rotate on the furrow opener 16, thereby lifting it.

[0043] Preferably, a tension spring 14 is installed between the connecting frame 13 and the installation box 51, so that after the connecting frame 13 loses its lifting force, it can still be stably reset downward to the groove opened by the trench opener 16 to perform soil covering operations.

[0044] In addition, in order to ensure that the covering disc 12 does not perform the covering operation when the tensioning wheel assembly 6 is released, a winding gear 74 is also provided here. The winding gear 74 is installed on the central axis of the steel rope winding wheel 73, and a rack plate 75 is engaged above the winding gear 74. The rack plate 75 is connected to the tensioning wheel assembly 6, so that the tensioning wheel assembly 6 drives the rack plate 75 to move as the moving structure 11 moves. When the rack plate 75 moves and passes through the winding gear 74, the winding gear 74 can drive the steel rope winding wheel 73 to rotate and reel in the steel rope body 71.

[0045] Reference Figure 7-10 As shown, the aforementioned acceleration assembly 8 includes a sector gear 81 and an acceleration gear 1 82 .

[0046] Specifically, the sector gear 81 is arranged on the head side of the connecting frame 13 and is concentric with the pin shaft 131. The acceleration gear 1 82 is located on one side of the sector gear 81. The acceleration gear 1 82 can be engaged or not engaged with the sector gear 81. When the sector gear 81 rotates 2°-4°, the sector gear 81 can be engaged with the acceleration gear 1 82. The acceleration gear 1 82 is also provided with a coaxial gear 2 83. One side of the gear 2 83 is engaged with the gear 3 84, and the gear 4 85 is engaged below the gear 3 84, and the gear 4 85 is fixed to one end of the central axis of the pressure wheel 17.

[0047] In this embodiment, when the connecting frame 13 is lifted by the lifting component 7 by 2°-4°, the sector gear 81 begins to engage with the acceleration gear 1 82 and drives the acceleration gear 1 82 to rotate. The rotation of the acceleration gear 1 82 can drive the rotation of gear 2 83, and then the gear 2 83 can drive the gear 3 84 to rotate, and further accelerate the gear 3 84. The gear 3 84 can drive the gear 4 85 to rotate, so that the pressure wheel 17 can rotate. The gear 3 84 here also plays a steering role, so that the rotation direction of the pressure wheel 17 is the direction of pulling the released drip irrigation tape 10, so that the pressure wheel 17 actively and quickly lays the drip irrigation tape 10, thereby forming a redundant drip irrigation tape 10.

[0048] The reason why the sector gear 81 starts to engage with the acceleration gear 82 only after the connecting frame 13 is lifted 2°-4° by the lifting component 7 is that when the connecting frame 13 is not lifted, the connecting frame 13 and the covering plate 12 should also have a certain degree of rotational freedom. This degree of freedom is to avoid the situation where the covering plate 12 is blocked and cannot cover the soil and move forward when it touches a hard structure in the soil. When the connecting frame 13 rotates within this degree of freedom (2°-4° in each direction), the pressure wheel 17 will not rotate actively, nor will it accelerate the laying of the drip irrigation tape 10. It only travels in the groove due to the movement of the vehicle.

[0049] Preferably, the central angle of the sector gear 81 is 45°-70°.

[0050] like Figure 11 In order to avoid the situation where the covering plate 12 is unable to cover the soil due to excessive deflection when the redundant drip irrigation belt 10 is not released, a limit block 132 is provided on the side edge of the other side of the head of the connecting frame 13, and an unlocking component 9 is also provided in the installation box 51. The unlocking component 9 is used to limit the required deflection freedom of the connecting frame 13 when it is not lifted, so that the covering plate 12 can avoid hard objects in the soil, and is used to no longer limit its deflection angle when the connecting frame 13 is lifted, thereby achieving the purpose of allowing the connecting frame 13 to deflect 2°-4° in both directions in the unlifted stage, and deflect to the required angle in the lifted stage.

[0051] For details, please refer to Figure 11 As shown, the unlocking assembly 9 includes a C-shaped frame 93, a pressure rod 95 and a spring 94.

[0052] The C-shaped frame 93 is located on the side of the head of the connecting frame 13 close to the limit block 132 . When the connecting frame 13 is not lifted, the C-shaped frame 93 controls the deflection angle of the connecting frame 13 by limiting the position of the limit block 132 .

[0053] The pressure rod 95 is fixed on the tensioning wheel assembly 6 (fixed under one of the side frames 63) and moves synchronously with the tensioning wheel assembly 6. A force plate 91 is provided on the moving path of the tensioning wheel assembly 6 in the installation box 51, and a pressure plate 92 is provided between the force plate 91 and the C-shaped frame 93. The force plate 91 has an inclined surface.

[0054] In this embodiment, when the movable structure 11 drives the tensioning wheel assembly 6 to release the drip irrigation tape 10, the side frame 63 can drive the pressure rod 95 to move, the pressure rod 95 moves on the inclined surface, and pushes the pressure plate 92 downward, so that the C-shaped frame 93 moves downward, so that the lower side of the C-shaped frame 93 loses the restriction on the limit block 132, and at this time the connecting frame 13 can be deflected at a larger angle.

[0055] Preferably, a second spring 94 is further provided, which is used to connect the force-bearing plate 91 and the bottom surface of the installation box 51 , and is used to restore the pressure plate 92 to its original height after losing the pressure of the pressure rod 95 .

[0056] When in use (working), the driver drives the vehicle to drive the device to move in the farmland, and the sowing device 1 can perform sowing operations. The drip irrigation tape laying device is used to lay the drip irrigation tape 10. The process of laying the drip irrigation tape 10 is as follows: as the vehicle moves, the drip irrigation tape 10 is unwound by the drip irrigation reel 4, and the drip irrigation tape unwound from the drip irrigation reel 4 passes through the front guide wheel 15, the tensioning wheel assembly 6, the rear guide wheel 18 and the pressure wheel 17 in sequence. At the same time, as the vehicle moves, the furrow opener 16 can furrow the soil, and the drip irrigation tape 10 is pressed into the furrow by the pressure wheel 17. The tensioning spring 65 in the tensioning wheel assembly 6 can automatically adjust the tension of the drip irrigation tape 10. At the same time, the covering plate 12 is used to re-cover the soil generated when the furrow opener 16 furrows the drip irrigation tape 10, so as to achieve shallow burial of the drip irrigation tape 10. In this process, the connecting frame 13 and the pin shaft 131 can be deflected to a certain extent on the furrow opener 16 to avoid hard structures in the soil.

[0057] When the vehicle reaches the area in the middle of the farmland where the main pipe is to be laid, it can drive the mobile structure 11 to work, thereby driving the connecting plate 64 to move. At this time, the connecting plate 64 will first drive the guide rod 66 to move, and then drag the entire tensioning wheel assembly 6 to move together, so that the tensioning wheel assembly 6 can release the drip irrigation belt 10. At the same time, the tensioning wheel assembly 6 drives the rack plate 75 to move. When the rack plate 75 moves and passes through the winding gear 74, the winding gear 74 can drive the steel rope winding wheel 73 to rotate and wind up the steel rope body 71, so that the connecting frame 13 can deflect. When it is lifted, the covering plate 12 is raised and no longer covered with soil, and due to the action of the unlocking component 9, the connecting frame 13 can now deflect without restriction. When the connecting frame 13 deflects, it drives the sector gear 81 to rotate. After the sector gear 81 rotates 2°-4°, the sector gear 81 can engage with the acceleration gear 1 82, and through the acceleration and steering action of the acceleration gear 1 82, gear 2 83, gear 3 84, and gear 4 85, the pressure wheel 17 is accelerated to rotate actively, and the drip irrigation belt 10 is laid to form a redundant, non-soil-covered drip irrigation belt 10, thereby facilitating its connection with the main pipe.

[0058] After the laying of the redundant section is completed (in fact, the laying time of the redundant section is very short, that is, after the mobile structure 11 pulls the tensioning wheel assembly 6, the laying of the redundant section is completed, and the pressing wheel 2 presses the redundant section to the bottom surface), the mobile structure 11 drives the tensioning wheel assembly 6 to reset, and the tensioning wheel assembly 6 pulls the drip irrigation tape 10 above, so that the drip irrigation reel 4 is quickly unwound until the tensioning wheel assembly 6 is completely reset and the unwinding of the drip irrigation tape 10 is restored to balance, and then the drip irrigation tape 10 is continuously laid.

[0059] Example 2 Combine Figure 12 and Figure 13As shown, the difference between this embodiment and the first embodiment is that the rotation mode of the steel rope reel 73 is different, and an inner core 76 moving rod 77 is provided here.

[0060] The inner core 76 is fixed at the center of the steel rope winding wheel 73, and the axial direction of the steel rope winding wheel 73 is in the same direction as the moving direction of the tensioning wheel assembly 6. The moving rod 77 is fixed on the connecting plate 64 and can move with the movement of the tensioning wheel assembly 6. The moving rod 77 passes through the inner core 76. A slider is provided in the inner cavity of the inner core 76, and a spiral groove 78 adapted to the slider is provided on the moving rod 77.

[0061] This embodiment is only capable of, when the tensioning wheel assembly 6 moves, it can drive the moving rod 77 to move axially in the inner cavity of the inner core 76, so that the slider can slide in the spiral groove 78, pushing the steel rope winding wheel 73 to rotate.

[0062] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0063] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A wheat seeder with both drip irrigation and paving functions, comprising a sowing device (1) and a drip irrigation and paving device arranged behind the sowing device (1), characterized in that: The drip irrigation laying device includes: Installation box (51); A furrow opener (16), the furrow opener (16) being located below the mounting box (51) and being used for opening furrows for the drip irrigation belt; A tension wheel assembly (6), the tension wheel assembly (6) being located in the installation box (51), and the drip irrigation belt passing through the tension wheel assembly (6) from top to bottom; A soil covering plate (12), the soil covering plate (12) is located behind the furrow opener (16) and is rotatably mounted on the furrow opener (16) via a pin (131) at the head of the connecting frame (13); A pressure wheel (17), the pressure wheel (17) is located at the tail end of the furrow opener (16), and is used to press the drip irrigation belt passing through the tension wheel assembly (6) into the furrow; A movable structure (11), the movable structure (11) being installed on one side of the installation box (51) and being used to adjust the position of the tension wheel assembly (6) so as to reduce the tension of the drip irrigation belt in a short time; A lifting assembly (7) is provided on the installation box (51) and is used to lift the soil covering plate (12) when the tension of the drip irrigation belt is reduced.

2. The wheat seeder with both drip irrigation and paving according to claim 1, characterized in that: An acceleration assembly (8) is provided between the center axis of the pressure wheel (17) and the pin (131) to accelerate the laying of the drip irrigation tape when the tension of the drip irrigation tape is reduced in a short period of time, thereby forming a state where redundant drip irrigation tape is laid on the required paving section, and the redundant drip irrigation tape is not covered with soil.

3. The wheat seeder with both drip irrigation and paving according to claim 2, characterized in that: The lifting assembly (7) includes a steel rope body (71) and a steel rope reel (73). The steel rope reel (73) is arranged in the installation box (51). The steel rope reel (73) reels the steel rope body (71) to enable the connecting frame (13) to rotate on the connecting frame (13) through the pin shaft (131) to lift the covering plate (12).

4. The wheat seeder with both drip irrigation and paving according to claim 3, characterized in that: The lifting assembly (7) also includes a winding gear (74), which is installed on the central axis of the steel rope winding wheel (73), and a rack plate (75) is engaged above the winding gear (74), and the rack plate (75) is connected to the tensioning wheel assembly (6), so that the tensioning wheel assembly (6) drives the rack plate (75) to move when the moving structure (11) moves.

5. The wheat seeder with both drip irrigation and paving according to claim 3, characterized in that: The lifting assembly (7) further comprises: An inner core (76), wherein the inner core (76) is fixed at the center of the steel rope winding wheel (73), and the axial direction of the steel rope winding wheel (73) is in the same direction as the moving direction of the tension wheel assembly (6); A moving rod (77) moves along with the movement of the tension wheel assembly (6), and the moving rod (77) passes through the inner core (76). The inner cavity of the inner core (76) is provided with a slider, and the moving rod (77) is provided with a spiral groove (78) adapted to the slider.

6. A wheat seeder for drip irrigation and paving according to any one of claims 1 to 5, characterized in that: The acceleration component (8) comprises: A sector gear (81), the sector gear (81) being provided on one side of the head of the connecting frame (13) and being concentric with the pin (131); An acceleration gear (82) is located on one side of the sector gear (81). The acceleration gear (82) and the sector gear (81) can be engaged or not engaged. The acceleration gear (82) is also provided with a coaxial gear (83). One side of the gear (83) is engaged with a gear (84). The lower portion of the gear (84) is engaged with a gear (85). The gear (85) is fixed to one end of the central axis of the pressure wheel (17). After the connecting frame (13) is lifted by the lifting assembly (7) by 2°-4°, the sector gear (81) and the acceleration gear 1 (82) begin to mesh.

7. The wheat seeder for drip irrigation and paving according to claim 6, characterized in that: A limit block (132) is provided on the side edge of the other side of the head of the connecting frame (13), and an unlocking component (9) is also provided in the installation box (51). The unlocking component (9) is used to limit the connecting frame (13) to have the required deflection freedom when the connecting frame (13) is not lifted, so that the covering plate (12) avoids hard objects in the soil, and is used to no longer limit the deflection angle of the connecting frame (13) when the connecting frame (13) is lifted.

8. The wheat seeder for drip irrigation and paving according to claim 6, characterized in that: The unlocking component (9) comprises: A C-shaped frame (93), the C-shaped frame (93) being located on a side of the head of the connecting frame (13) close to the limit block (132), and the C-shaped frame (93) controlling the deflection angle of the connecting frame (13) by limiting the position of the limit block (132) when the connecting frame (13) is not lifted; A pressure rod (95), the pressure rod (95) is fixed on the tension wheel assembly (6) and moves synchronously with the tension wheel assembly (6), a force plate (91) is provided in the installation box (51) on the moving path of the tension wheel assembly (6), a pressure plate (92) is provided between the force plate (91) and the C-shaped frame (93), and the force plate (91) has an inclined surface; Spring 2 (94), the spring 2 (94) is used to connect the force-bearing plate (91) and the bottom surface of the installation box (51).

9. A wheat seeder for both drip irrigation and paving according to claim 7 or 8, characterized in that: A tension spring (14) is installed between the connecting frame (13) and the installation box (51) for resetting the connecting frame (13) after it loses its lifting force.

10. A wheat seeder for both drip irrigation and paving according to any one of claims 1 to 5, characterized in that: A front guide wheel (15) is provided at the upper portion of the installation box (51), and a rear guide wheel (18) is provided at the lower portion of the installation box (51). The drip irrigation belt (10) forms a V-shaped structure between the front guide wheel (15), the tension wheel assembly (6), and the rear guide wheel (18).

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