Scissor type seed output opening and closing device of sowing machine and electric sowing machine

Abstract

The utility model discloses a shears-fork type seed output opening and closing device of a sowing machine and an electric sowing machine, the shears-fork type seed output opening and closing device comprises a shears-fork type opening and closing assembly, a connecting rod control assembly and an elastic recovery assembly, a mounting shell is provided with a storage bin with a discharge port, the shears-fork type opening and closing assembly comprises two opening and closing discharge plates which can rotate relatively, the two opening and closing discharge plates are arranged in an X shape, and the connecting rod control assembly is connected with the elastic recovery assembly. Comprising a head portion and a tail portion, the head portions of the two opening and closing discharging plates are located under a discharging port, the connecting rod control assembly sequentially comprises a starting handle, a straight connecting rod and a pushing and rotating control piece from top to bottom, and the pushing and rotating control piece penetrates through the portion between the tail portions of the two opening and closing discharging plates and can move up and down. And the two opening and closing discharging plates are pushed to rotate relatively to be opened through two inclined surface ends on the opening and closing discharging plates. According to the utility model, the connecting rod control assembly is integrally in a vertical regular shape, and can directly control the opening and closing of the scissor-type opening and closing assembly through vertical movement without the help of other transmission parts, so that the structure of the device is greatly simplified, the installation is compact, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of seeder technology, specifically to a scissor-type seed output opening and closing device for a seeder and an electric seeder. Background Technology

[0002] To improve sowing efficiency and effectiveness, and to alleviate farmers' fatigue during sowing, many farmers now purchase handheld electric seeders for auxiliary sowing.

[0003] Existing handheld electric seeders are relatively mature, typically including a hopper for storing seeds, a conveying device for controlling the delivery of seeds out of the hopper, and a spreading component for quantitatively and evenly sowing the seeds onto the ground. The conveying device is usually implemented through a linkage structure of multiple links. The linkage mechanism pushes a plate located below the hopper outlet, aligning the window on the plate with the outlet, thus allowing the seeds to fall out and achieve sowing. The pushing and pulling directions of the linkage mechanism and the baffle are usually at a certain angle, generally 90 degrees. Therefore, to achieve the pushing of the baffle by the linkage mechanism, it is inevitable to set up a transmission component that can change the direction of force transmission, such as a hinge. As a result, the linkage structure is usually still relatively complex and difficult to simplify.

[0004] For example, the existing patent with publication number CN218587622U discloses a seeding start-stop mechanism for a seeder. This start-stop mechanism has many connecting rod components, and the shapes of the connecting rods are mostly irregular, which increases the production cost and lengthens the assembly time. Its control of opening or closing the discharge port is also achieved by converting the longitudinal movement of the second connecting rod into the lateral movement of the baffle through a rotatable hinge structure. This causes the baffle to block the discharge port of the hopper or align the channel of the baffle with the discharge port to control the seed delivery. Therefore, the structure of this start-stop mechanism is still relatively complex. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a scissor-type seed output opening and closing device for a seed spreader and an electric seed spreader. By setting an X-shaped scissor-type opening and closing component, a regularly shaped linkage control component can be directly driven by up-and-down movement to rotate and open the scissor-type opening and closing component, thereby opening the discharge port and greatly simplifying the structure of the conveying device.

[0006] To solve the above problems, the present invention adopts the following solution:

[0007] A scissor-type seed output opening and closing device for a seed spreader and an electric seed spreader are disclosed. The seed spreader is installed within a housing and includes a scissor-type opening and closing assembly, a linkage control assembly, and an elastic recovery assembly. The housing has a handle and a storage bin. A discharge port is located at the bottom of the storage bin, and a seed spreading device is positioned below the discharge port. The scissor-type opening and closing assembly includes two hinged, rotatable opening and closing discharge plates arranged in an X-shape, each including a head and a tail. The heads of the two discharge plates are located directly below the discharge port. The linkage control assembly includes, from top to bottom, a start handle, a linear linkage, and a push-rotate control component connected longitudinally in sequence. The start handle is movably mounted on the handle and partially exposed outside the handle. The linear linkage drives the push-rotate control component to pass between the tails of the two opening and closing discharge plates and move up and down. The push-rotate control component has at least one guide inclined end that movably abuts against the tail of the opening and closing discharge plate. The up and down movement of the guide inclined end pushes the tail of the opening and closing discharge plate to rotate around its hinge part and drives the heads of the two opening and closing plates to rotate relative to each other to open and realize seed output.

[0008] In the above scheme, pressing the start handle causes the start handle to move the linear connecting rod, which in turn causes the push-rotate control component and its upper guide inclined end to move. The up-and-down movement of the guide inclined end pushes the tail of the opening and closing discharge plate to rotate around its hinge part, and causes the heads of the two opening and closing plates to rotate relative to each other and open, thereby realizing seed output and outputting the seeds to the sowing device for seed sowing.

[0009] Preferably, the push-turn control component has two guide inclined ends, which are symmetrically arranged and combined to form a shape that is smaller at the top and larger at the bottom.

[0010] Therefore, as the push-rotate control component moves upward, the two guide inclined ends of the push-rotate control component gradually open the tails of the two opening and closing discharge plates, thereby causing the two opening and closing discharge plates to rotate and open their heads and form a space communicating with the discharge port. Thus, the seeds fall from the discharge port through the opening and closing discharge plates and are output to the sowing device.

[0011] Preferably, the two guide slope ends of the push-rotation control component are continuously provided with limiting guide grooves.

[0012] A limiting guide groove is provided to increase the contact stability between the push control component and the opening and closing discharge plate. When the push control component stops, the opening and closing discharge plate is restricted in the limiting guide groove and is not easy to slide at will, thereby ensuring the opening and closing stability of the scissor-type opening and closing assembly.

[0013] Preferably, the tail end of the opening and closing discharge plate is provided with a guide push plate, which is arc-shaped, and the two guide inclined ends of the push control component can be separated and abutted against the convex arc surfaces of the two guide push plates respectively.

[0014] A guide plate is provided to facilitate the smooth sliding of the control component between the tails of the two opening and closing discharge plates, and to gradually open the tails of the two opening and closing discharge plates, thereby rotating and opening the scissor-type opening and closing assembly.

[0015] Preferably, the elastic recovery assembly includes a first recovery spring and a recovery torsion spring. The first recovery spring is connected between the upper end of the start handle and the mounting housing, and the recovery torsion spring is installed in the hinge part of the two opening and closing discharge plates.

[0016] In the above configuration, after pressing the start handle upwards to open the scissor-type opening and closing assembly, the first restoring spring is compressed and generates a downward rebound force. After releasing the handle, the first restoring spring pushes the start handle downwards, thereby pushing the push-rotate control component downwards. This causes the smaller upper end of the push-rotate control component to gradually move down between the two opening and closing discharge plates, leaving space for the rotation and closing of the scissor-type opening and closing assembly. Under the rebound force of the restoring torsion spring, the scissor-type opening and closing assembly rotates in the opposite direction, causing the heads of the two opening and closing discharge plates to come together and close, thereby blocking the connection between the discharge port and the spreading device.

[0017] Preferably, the elastic recovery assembly further includes a second recovery spring, and the straight connecting rod and the mounting housing form a mounting sliding groove. The lower end of the mounting sliding groove is located on the straight connecting rod, and the upper end of the mounting sliding groove is located on the mounting housing. The second recovery spring is longitudinally installed in the mounting sliding groove.

[0018] A second restoring spring is further added to increase the restoring force of the elastic restoring component. After the start handle is released, the linkage control component can quickly and accurately return to its original state, ensuring that the control of the scissor-type opening and closing control component can be accurately and quickly transmitted to the target position, while also ensuring the service life of the electric seeder. In addition, the second restoring spring is set at the straight linkage, so that the position of the linkage control component with elastic restoring function is evenly distributed, further ensuring the restoring effect and efficiency of the elastic restoring component.

[0019] Preferably, the mounting housing is further provided with an opening adjustment structure for adjusting the opening degree of the scissor-type opening and closing component, which is implemented in conjunction with the linkage control component.

[0020] Preferably, the opening adjustment structure includes a polygonal adjustment block and an operating wheel for controlling the rotation of the polygonal adjustment block. The operating wheel is inserted into the polygonal adjustment block, and the distance between each side of the polygonal adjustment block and its rotation center is not the same. A longitudinal adjustment plate is provided on the straight connecting rod, and the adjustment plate is located directly below the polygonal adjustment block.

[0021] The above setup, by rotating the opening adjustment structure, adjusts the distance between the lowest point of the polygonal adjustment block and the upper point of the adjustment plate, thereby limiting the upward movement distance of the adjustment plate, that is, the upward movement distance of the linear connecting rod, and thus controlling the opening degree of the scissor-type opening and closing assembly.

[0022] Preferably, a stabilizing stopping structure is provided between the link control assembly and the mounting housing. The stabilizing stopping structure includes a limiting abutment block provided in the mounting housing and a protruding limiting block provided on the side wall of the straight link. When the elastic recovery assembly is in the initial state, the protruding limiting block abuts against the upper end of the limiting abutment block.

[0023] The above settings limit the lower limit position of the linkage control assembly, ensuring that the conveying device remains stable even when not in use, and will not sway up and down due to the weight of the conveying device itself or other factors.

[0024] Preferably, the upper end of the limiting block is also provided with an elastic sheet, which deforms when the protruding limiting block abuts against the upper end of the elastic sheet.

[0025] An elastic plate is installed so that the linkage control assembly is subjected to force even when it is not in use, ensuring that the linkage control assembly is always in a compact installation state, thereby improving reliability and lifespan.

[0026] Preferably, the mounting housing has longitudinally distributed sliding channels, the straight connecting rod clearance is installed in the sliding channels, and the stable stopping structure is also located in the sliding channels.

[0027] A sliding channel is provided to further compress the installation of the linkage control assembly and improve the reliability of the assembly.

[0028] This utility model also provides an electric seed spreader, which includes the scissor-type seed output opening and closing device of the seed spreader as described above.

[0029] The beneficial effects of this utility model are as follows:

[0030] In this invention, the linkage control assembly is designed as a vertical, regular shape, which simplifies the structure for controlling seed delivery and improves reliability. Furthermore, the linkage control assembly can directly control the opening and closing of the scissor-type opening and closing assembly by moving up and down, without the need for other transmission components. This further simplifies the structure of the conveying device, making the assembly compact, reducing production and assembly costs, and also reducing the failure rate to some extent.

[0031] This invention, by setting an elastic plate with a stable stopping structure, ensures that the linkage control assembly is subjected to a rebound force whether it is in use or not, thereby ensuring that the linkage control assembly is always in a compact installation state, improving its reliability and service life. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this utility model applied to an electric seeder;

[0033] Figure 2 This is a schematic diagram of the internal structure of an electric seeder with the scissor-type opening and closing component of this utility model in the closed state.

[0034] Figure 3 This is a schematic diagram of the scissor-type opening and closing component of this utility model when closed and in cooperation with other components;

[0035] Figure 4 A schematic diagram of the scissor-type opening and closing component of this utility model when it is opened and cooperates with other components;

[0036] Figure 5 for Figure 2 A magnified view of a section at point I;

[0037] Figure 6 This is a schematic diagram of the polygonal adjustment block of this utility model.

[0038] Reference numerals: Mounting housing 10, scissor-type opening and closing assembly 20, linkage control assembly 30, elastic recovery assembly 40, opening adjustment structure 50, stabilizing stopping structure 60, spreading device 70, handle 11, storage bin 12, sliding channel 13, discharge port 121, opening and closing discharge plate 21, head 211, tail 212, guide push plate 213, start handle 31, linear linkage 32, push and turn control component 33, adjusting plate 321, guide inclined end 331, limit guide groove 332, first recovery spring 41, second recovery spring 43, mounting sliding groove 431, polygonal adjusting block 51, operating wheel 52, limit abutment block 61, protruding limit block 62, elastic sheet 611, motor drive assembly 71, fan blade spreading assembly 72. Detailed Implementation

[0039] Example 1:

[0040] refer to Figures 1-2 This embodiment provides a scissor-type seed output opening and closing device for a seeder and an electric seeder, which greatly simplifies the linkage mechanism for opening the discharge port 121 of the storage bin 12, making the installation compact, improving the reliability of use, reducing the probability of failure of the handheld electric seeder, and also reducing production and assembly costs.

[0041] The scissor-type seed conveyor is installed inside the mounting housing 10 and includes a scissor-type opening and closing assembly 20, a linkage control assembly 30, and an elastic recovery assembly 40. The mounting housing 10 has a handle 11 at the top for gripping and a storage bin 12 below the handle 11 for storing seeds. The storage bin 12 has a discharge port 121 at the bottom, and a seed spreading device 70 for sowing seeds is located below the discharge port 121. The seed spreading device 70 includes a motor drive assembly 71 and a fan-blade spreading assembly 72 connected to the motor drive assembly 71 and arranged in a circumferential direction. The fan-blade spreading assembly 72 is exposed outside the mounting housing 10 and communicates with the outside. When seeds fall from the discharge port 121, they fall into the fan-blade spreading assembly 72. The fan-blade spreading assembly 72 rotates under the drive of the motor drive assembly 71, causing the seeds to move centrifugally, thereby sowing the seeds into the soil. (Since the motor drive assembly and the fan blade spreading assembly are existing technologies and not the innovative points of this utility model, their structures will not be described in detail.)

[0042] refer to Figures 2-5 The scissor-type opening and closing assembly 20 is used to control the connection between the discharge port 121 and the spreading device 70. It includes two opening and closing discharge plates 21 that can be rotated and hinged relative to each other. The intersection of the heads of the two opening and closing discharge plates 21 is provided with an opening and closing hinge hole. A hinge shaft is inserted into the opening and closing hinge hole to realize rotational hinge. The two opening and closing discharge plates 21 are arranged in an X shape, including a head 211 and a tail 212. The head 211 of the two opening and closing discharge plates 21 is located directly below the discharge port 121.

[0043] The linkage control assembly 30 is used to drive the scissor-type opening and closing assembly 20 to rotate and open. It includes, from top to bottom, a start handle 31, a straight link 32, and a push-rotation control component 33 connected longitudinally in sequence. The start handle 31 is movably installed on the handle part 11 and partially exposed outside the handle part 11. The straight link 32 drives the push-rotation control component 33 to pass between the tails 212 of the two opening and closing discharge plates 21 and move up and down. The push-rotation control component 33 has two guide inclined ends 331 and is arranged in a symmetrical shape with a smaller upper part and a larger lower part. The up and down movement of the two guide inclined ends 331 pushes the tails 212 of the two opening and closing discharge plates 21 to rotate around their hinge parts, thereby causing the head parts 211 of the two opening and closing discharge plates 21 to rotate relative to each other and open.

[0044] The elastic recovery component 40 is used to drive the linkage control component 30 and the scissor-type opening and closing component 20 back to the initial state. It includes a first recovery spring 41 and a recovery torsion spring (the recovery torsion spring is not shown in the figure). The first recovery spring 41 is connected between the upper end of the start handle 31 and the mounting housing 10. The recovery torsion spring is installed in the hinge part of the two opening and closing discharge plates 21.

[0045] Furthermore, the elastic recovery component 40 also includes a second recovery spring 43, and the straight connecting rod 32 and the mounting housing 10 form a mounting sliding groove 431. The lower end of the mounting sliding groove 431 is located on the straight connecting rod 32, and the upper end of the mounting sliding groove 431 is located on the mounting housing 10. The second recovery spring 43 is longitudinally installed in the mounting sliding groove 431.

[0046] By setting a second restoring spring 43 to increase the restoring force of the elastic restoring component 40, the linkage control component 30 can quickly and accurately return to its original state after the start handle 31 is released, ensuring that the control of the scissor-type opening and closing control component can be accurately and quickly transmitted to the target position, while also ensuring the service life of the electric seeder; and by setting a second restoring spring 43 at the straight linkage 32, the position of the linkage control component 30 with elastic restoring function is evenly distributed, further ensuring the restoring effect and efficiency of the elastic restoring component 40.

[0047] Therefore, the specific working process of the conveying device outputting seeds to the sowing device 70 is as follows:

[0048] By pressing the start handle 31 upwards, the start handle 31 drives the linear connecting rod 32 to move upwards. The linear connecting rod 32 drives the push-rotate control component 33 to move upwards. As the push-rotate control component 33 moves upwards, the two guide inclined ends 331 of the push-rotate control component 33 gradually open the tails 212 of the two opening and closing discharge plates 21, thereby causing the two opening and closing discharge plates 21 to rotate and open their heads 211 to form a space communicating with the discharge port 121. Thus, the seeds fall from the discharge port 121 through the opening and closing discharge plates 21 into the sowing device 70, realizing seed sowing.

[0049] During the operation of opening the scissor-type opening and closing assembly 20, the start handle 31 moves upward to compress the first restoring spring 41, and the lower end of the mounting sliding groove 431 compresses the second restoring spring 43 as the straight connecting rod 32 moves upward. The scissor-type opening and closing assembly 20 rotates and stretches the restoring torsion spring. Therefore, when the start handle 31 is released, under the action of the first restoring spring 41 and the second restoring spring 43, both the start handle 31 and the straight connecting rod 32 are subjected to the rebound force and move downward, thereby pushing the push-rotation control component 33 downward. The smaller upper end of the push-rotation control component 33 gradually moves down between the two opening and closing discharge plates 21, leaving space for the rotation and closing of the scissor-type opening and closing assembly 20. Under the rebound force of the restoring torsion spring, the scissor-type opening and closing assembly 20 rotates in the opposite direction, causing the heads 211 of the two opening and closing discharge plates 21 to come together and close, thereby blocking the connection between the discharge port 121 and the spreading device 70.

[0050] refer to Figure 5To increase the contact stability between the push-rotate control component 33 and the opening / closing discharge plate 21, and to prevent relative sliding between the opening / closing discharge plate 21 and the guide slope end 331 of the push-rotate control component 33 when the push-rotate control component 33 stops, thus ensuring the stable opening and closing of the scissor-type opening and closing assembly 20, the two guide slope ends 331 of the push-rotate control component 33 are continuously provided with limiting guide grooves 332.

[0051] refer to Figure 5 To ensure that the push-rotate control component 33 can be smoothly inserted between the tails 212 of the two opening and closing discharge plates 21, and that the tails 212 of the two opening and closing discharge plates 21 can be opened smoothly, the tails 212 of the opening and closing discharge plates 21 are provided with guide push plates 213. The guide push plates 213 are arc-shaped, and the gap between the two guide push plates 213 from top to bottom is regularly distributed with varying sizes. This facilitates the smooth insertion of the push-rotate control component 33 between the two opening and closing discharge plates 21. The two guide inclined ends 331 of the push-rotate control component 33 can be separated and abutted against the protruding arc surfaces of the two guide push plates 213, so the contact surface is a smooth arc surface, which makes the push-rotate control component 33 move relatively smoothly during the up and down movement and is not easy to get stuck.

[0052] refer to Figures 2-4 , Figure 6 To adjust the opening size of the scissor-type opening and closing assembly 20, thereby controlling the seed output, the mounting housing 10 also includes an opening adjustment structure 50 that cooperates with the linkage control assembly 30.

[0053] Specifically, the opening adjustment structure 50 includes a polygonal adjustment block 51 and an operating wheel 52. The operating wheel 52 is used to control the rotation of the polygonal adjustment block 51. It is inserted into the polygonal adjustment block 51. The distance between each side of the polygonal adjustment block 51 and its rotation center is not the same. A longitudinal adjustment plate 321 is provided on the straight connecting rod 32. The adjustment plate 321 is located directly below the polygonal adjustment block 51.

[0054] Therefore, by rotating the opening adjustment structure 50, the distance between the lowest end of the polygonal adjustment block 51 and the upper end of the adjustment plate 321 can be adjusted, thereby limiting the upward movement distance of the adjustment plate 321, that is, the upward movement distance of the linear connecting rod 32, thus controlling the opening degree of the scissor-type opening and closing assembly 20.

[0055] refer to Figures 3-5To ensure the conveying device remains stable even when not in use, preventing it from swaying due to its own weight or other factors, the lower limit position of the linkage control assembly 30 is also limited. A stabilizing stopping structure 60 is also provided between the linkage control assembly 30 and the mounting housing 10. The stabilizing stopping structure 60 includes a limiting abutment block 61 located within the mounting housing 10 and a protruding limiting block 62 located on the side wall of the straight connecting rod 32. When the elastic recovery assembly 40 is in its initial state, the protruding limiting block 62 abuts against the upper end of the limiting abutment block 61.

[0056] Furthermore, to ensure that the linkage assembly can be subjected to a force even when not in use, and to ensure that the linkage control assembly 30 is always in a compact installation state, thus guaranteeing reliable operation, the upper end of the limiting abutment block 61 is also provided with an elastic sheet 611. When the protruding limiting block 62 abuts against the upper end of the elastic sheet 611, the elastic sheet 611 is pressed down and deformed.

[0057] refer to Figure 2 , Figure 5 The mounting housing 10 has a longitudinally spaced sliding channel 13. The straight connecting rod 32 is installed in the sliding channel 13 with a small gap. The stable stopping structure 60 is also located in the sliding channel 13. Therefore, the straight connecting rod 32 is installed compactly in the mounting housing 10, which improves the reliability of the assembly.

Claims

1. A scissor type seed output opening and closing device of a seed sowing machine, which is installed in a mounting housing (10) formed with a handle portion (11) and a storage bin (12) provided with a discharge port (121) at the bottom thereof, characterized in that, The system includes a scissor-type opening and closing assembly (20) and a linkage control assembly (30). The scissor-type opening and closing assembly (20) includes two opening and closing discharge plates (21) that can be rotatably hinged to each other. The two opening and closing discharge plates (21) are arranged in an X shape, including a head (211) and a tail (212). The head (211) of the two opening and closing discharge plates (21) is located directly below the discharge port (121). The linkage control assembly (30) includes a starter handle connected longitudinally in sequence. 31) Straight connecting rod (32) Push-rotation control component (33) The push-rotation control component (33) passes between the tails (212) of the two opening and closing discharge plates (21). The push-rotation control component (33) has at least one guide slope end (331) that movably abuts against the tail (212) of the opening and closing discharge plate (21). The up and down movement of the guide slope end (331) drives the heads (211) of the two opening and closing discharge plates (21) to rotate relative to each other and open to realize seed output.

2. The spreader's scissor-type seed output opening and closing device according to claim 1, characterized in that, The push-turn control component (33) has two guide inclined ends (331), which are symmetrically arranged and combined to form a shape that is smaller at the top and larger at the bottom.

3. A skid steer seed output opening and closing device according to claim 2, wherein, The two guide slope ends (331) of the push control component (33) are continuously provided with limiting guide grooves (332).

4. The spreader's scissor-type seed output opening and closing device according to claim 2, characterized in that, The tail (212) of the opening and closing discharge plate (21) is provided with a guide push plate (213). The guide push plate (213) is arc-shaped. The two guide inclined surfaces (331) of the push control component (33) can be separated and abutted against the protruding arc surfaces of the two guide push plates (213).

5. The spreader's scissor-type seed output opening and closing device according to claim 1, characterized in that, It also includes an elastic recovery component (40), which includes a first recovery spring (41) and a recovery torsion spring. The first recovery spring (41) is connected between the upper end of the start handle (31) and the mounting housing (10), and the recovery torsion spring is installed in the hinge part of the two opening and closing discharge plates (21).

6. A spreader scissor-type seed output opening and closing device according to claim 5, characterized in that The elastic recovery component (40) also includes a second recovery spring (43), and the straight connecting rod (32) and the mounting housing (10) form a mounting sliding groove (431). The lower end of the mounting sliding groove (431) is located on the straight connecting rod (32), and the upper end of the mounting sliding groove (431) is located on the mounting housing (10). The second recovery spring (43) is longitudinally installed in the mounting sliding groove (431).

7. The spreader's scissor-type seed output opening and closing device according to claim 1, characterized in that, The start handle (31) is movably mounted on the handle (11) and partially exposed outside the handle (11).

8. The scissor-type seed output opening and closing device of the seeder according to claim 1, characterized in that, The mounting housing (10) is also provided with an opening adjustment structure (50) for adjusting the opening degree of the scissor-type opening and closing assembly (20). The opening adjustment structure (50) includes a polygonal adjustment block (51) and an operating wheel (52) for controlling the rotation of the polygonal adjustment block (51). The operating wheel (52) is inserted into the polygonal adjustment block (51). The distance between each side of the polygonal adjustment block (51) and its rotation center is not the same. A longitudinal adjustment plate (321) is provided on the straight connecting rod (32). The adjustment plate (321) is located directly below the polygonal adjustment block (51).

9. The spreader's scissor-type seed output opening and closing device according to claim 1, characterized in that, A stabilizing stop structure (60) is also provided between the linkage control assembly (30) and the mounting housing (10). The stabilizing stop structure (60) includes a limiting abutment block (61) provided in the mounting housing (10) and a protruding limiting block (62) provided on the side wall of the straight linkage (32). When the elastic recovery assembly (40) is in the initial state, the protruding limiting block (62) abuts against the upper end of the limiting abutment block (61).

10. The spreader's scissor-type seed output opening and closing device according to claim 9, characterized in that, The upper end of the limiting block (61) is also provided with an elastic sheet (611). When the protruding limiting block (62) abuts against the upper end of the elastic sheet (611), the elastic sheet (611) is pressed down and deformed.

11. An electrically powered broadcaster characterized by, Includes the scissor-type seed output opening and closing device of the seeder according to any one of claims 1-10.

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