Air suction duckbill

Abstract

The utility model discloses an air suction duckbill, which belongs to the technical field of seeding machines and comprises a duckbill planting frame and a pressing plate rotatably arranged on one side of the duckbill planting frame, a storage bin is arranged in the center of the duckbill planting frame, and a fixed blade is mounted at the bottom end of the side wall of the duckbill planting frame. An elastic hinge mechanism is arranged between the duckbilled seeding frame and the pressing plate, a movable blade is obliquely fixed to the bottom end of the pressing plate, a bottom plate is fixedly installed at the top end of the duckbilled seeding frame, a through hole is formed in the side wall of the bottom plate, and the elastic hinge mechanism comprises a hinge and a rotating shaft rotationally arranged in the hinge; the air suction duckbill drives the movable blade to slide on the surface of a mulching film along with the movement of the duckbill seeding frame after being in contact with the ground through the pressing plate, and the mulching film is secondarily cut in the sliding process, so that the mulching film is double cut and ripped, and the situation that the mulching film fails to be broken is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of seeder technology, specifically relating to an air-suction duckbill. Background Technology

[0002] Mulching is a major feature of peanut production in my country and has been widely promoted in major peanut-producing areas. Currently, most of the seed metering devices for planters developed and manufactured in the domestic market are mechanical internal seed filling types. During sowing, over-sowing or missed sowing is serious, and the surface of the kernels is easily damaged, affecting the emergence rate. Although mulching after sowing can basically meet the agronomic requirements of peanut sowing, the manual breaking of the film and removing the seedlings later is time-consuming and laborious. Traditional mechanical seed metering devices are prone to uneven sowing depth, resulting in uneven emergence, which in turn affects the increase of peanut yield.

[0003] Patent application number 201510214039.8 discloses a duckbill seed metering device for a peanut planter, including a seed tray, a pressure plate, a duckbill tube, a fixing pin, a movable valve, a blocking plate, a seed metering shaft, an air intake chamber, a seed suction chamber, a return spring, a roller disc, and a seed scraper. The inner side of the roller disc has a seed channel welded to support seed rotation and is fitted onto the seed tray. The seed tray is rotatably and detachably fitted onto the seed metering shaft. The seed tray completely separates the air intake chamber and the seed suction chamber. The duckbill tube is located on the outer side of the roller disc. The pressure plate and the movable valve are integrated and hinged together by the fixing pin and the duckbill tube. The return spring connects the pressure plate and the roller disc, keeping the duckbill in a normally closed state. The seed suction chamber contains a seed scraper and a blocking plate, which is fitted onto the seed metering shaft and has one end against the seed tray. The air intake chamber is connected to a fan via an air intake hose, and the seed suction chamber is connected to a seed box via a pipe.

[0004] The above technical solution uses a pressure plate and a return spring to break the film with the duckbill tube for planting. However, due to the small size of the duckbill tube, it only makes brief contact with the film during rotation, which causes the film to move downward when squeezed, resulting in failure to break the film. The seeds will fall onto the surface of the film, resulting in poor film planting effect. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an air-suction duckbill. The air-suction duckbill aims to solve the technical problem that, due to the small size of the duckbill tube, it only makes brief contact with the film during rotation, which causes the film to move downward when squeezed, resulting in failure to break the film and the seeds falling onto the surface of the film, thus resulting in poor film-mulched planting effect.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides an air-suction duckbill, which includes a duckbill planting frame and a pressure plate rotatably disposed on one side of the duckbill planting frame. A storage compartment is provided at the center of the duckbill planting frame, and a fixed blade is installed at the bottom of the side wall of the duckbill planting frame. An elastic hinge mechanism is provided between the duckbill planting frame and the pressure plate, and a movable blade is fixedly inclined at the bottom of the pressure plate.

[0009] When using this technical solution, a pressure plate is installed on the side wall of the duckbill seeding frame via a flexible hinge mechanism. The duckbill seeding frame cuts and delivers seeds to the film through a fixed blade at its bottom. Simultaneously, after the pressure plate contacts the ground, it moves with the duckbill seeding frame, causing the movable blade to slide on the surface of the film and perform a secondary cut on the film during the sliding process. This facilitates double cutting and greatly reduces the possibility of film breakage failure. Hinges and pivots are respectively installed on the side wall of the duckbill seeding frame. The connecting plate on the hinge is fixed to the pressure plate with bolts. When the pressure plate is compressed, it drives the baffle and the movable blade to move synchronously. During the movement, the baffle opens the seed outlet, allowing the seeds to fall into the cut film, thus improving the seed sowing effect.

[0010] Preferably, a base plate is fixedly installed at the top of the duckbill seeding rack, and through holes are provided on the side wall of the base plate.

[0011] Furthermore, the elastic hinge mechanism includes a hinge and a rotating shaft rotatably disposed in the hinge. The rotating shaft is fixedly connected to the duckbill seeding frame, and a torsion spring is installed between the rotating shaft and the hinge.

[0012] Furthermore, a connecting plate is fixedly installed on the side wall of the hinge, and the pressure plate has a U-shaped structure that fits into the connecting plate.

[0013] Furthermore, bolts are symmetrically installed at the bottom end of the pressure plate, and the top ends of the bolts are threaded into the connecting plate.

[0014] Furthermore, the side wall of the duckbill seeding rack is provided with a protrusion, and the fixed blade is fixedly connected to the protrusion.

[0015] Furthermore, the bottom of the storage chamber is provided with a seed outlet, and the top of the pressure plate is fixed with a baffle for sealing the seed outlet.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention features a pressure plate installed on the side wall of a duckbill seeding frame via an elastic hinge mechanism. The duckbill seeding frame cuts and delivers seeds to the film using a fixed blade at its bottom. Simultaneously, after the pressure plate contacts the ground, it moves along with the duckbill seeding frame, causing the movable blade to slide on the surface of the film. During this sliding process, the film is cut a second time, facilitating double cutting and greatly reducing the chance of the film breaking.

[0019] By installing hinges and pivots on the side walls of the duckbill seeding rack, the connecting plates on the hinges are fixed to the pressure plates by bolts. When the pressure plates are squeezed, they drive the baffles and movable blades to move synchronously. During the movement, the baffles open the seed outlet, allowing the seeds to fall into the cut film, thus improving the seed sowing effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model from another angle;

[0023] Figure 3 This is a cross-sectional view of the duckbill seeding frame in this utility model;

[0024] Figure 4 This utility model Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0025] The labels in the attached diagram are as follows: 1. Duckbill seeder; 2. Hinge; 3. Connecting plate; 4. Pressure plate; 5. Movable blade; 6. Fixed blade; 7. Rotating shaft; 8. Storage compartment; 9. Bolt; 10. Protrusion; 11. Base plate; 12. Through hole; 13. Seed outlet; 14. Baffle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This specific embodiment is an air-sucking duckbill, the structural diagram of which is shown below. Figure 1 and Figure 2 As shown, the air-suction duckbill includes a duckbill planting frame and a pressure plate 4 rotatably mounted on one side of the duckbill planting frame 1. A storage compartment 8 is provided at the center of the duckbill planting frame 1, and a fixed blade 6 is installed at the bottom of the side wall of the duckbill planting frame 1. An elastic hinge mechanism is provided between the duckbill planting frame 1 and the pressure plate 4, and a movable blade 5 is fixedly mounted at the bottom of the pressure plate 4.

[0028] A base plate 11 is fixedly installed at the top of the duckbill seeding frame 1. A through hole 12 is opened on the side wall of the base plate 11. The elastic hinge mechanism includes a hinge 2 and a rotating shaft 7 rotatably installed in the hinge 2. The rotating shaft 7 is fixedly connected to the duckbill seeding frame 1, and a torsion spring is installed between the rotating shaft 7 and the hinge 2. A connecting plate 3 is fixedly installed on the side wall of the hinge 2. The pressure plate 4 has a U-shaped structure and fits against the connecting plate 3. The torsion spring deforms during the process of the baffle 14 being pressed against the ground, and drives the baffle 14 to return to its original position after the duckbill seeding frame 1 rotates. The duckbill seeding frame 1 cuts the film and transports seeds through the fixed blade 6 at its bottom end. At the same time, after the pressure plate 4 contacts the ground, it drives the movable blade 5 to slide on the surface of the film as the duckbill seeding frame 1 moves. During the sliding process, the film is cut twice, and the film is cut open twice, which greatly reduces the situation of film breakage failure.

[0029] like Figure 3 and Figure 4 As shown, bolts 9 are symmetrically installed at the bottom of the pressure plate 4, and the top of the bolts 9 are threaded into the connecting plate 3. The side wall of the duckbill seeding rack 1 is provided with a protrusion 10, and the fixed blade 6 is fixedly connected to the protrusion 10. The bottom of the storage chamber 8 is provided with a seed outlet 13. The top of the pressure plate 4 is inclinedly fixed with a baffle 14 for sealing the seed outlet 13. The connecting plate 3 on the hinge 2 is fixed to the pressure plate 4 by bolts 9. When the pressure plate 4 is squeezed, it drives the baffle 14 and the movable blade 5 to move synchronously. During the movement, the baffle 14 opens the seed outlet 13, allowing the seeds to fall into the cut film, thus improving the seed sowing effect.

[0030] Another structural diagram of the air-sucking duckbill is shown below. Figure 2 As shown, the cross-sectional structural diagram of its duckbill seeding frame 1 is as follows: Figure 3 As shown, its Figure 3 An enlarged schematic diagram of the structure at point A is shown below. Figure 4 As shown.

[0031] Working principle: When using the device of this technical solution, the blade 6 fixed at the bottom of the duckbill seeding frame 1 cuts the film and conveys the seeds. At the same time, after the pressure plate 4 comes into contact with the ground, it drives the movable blade 5 to slide on the surface of the film as the duckbill seeding frame 1 moves. During the sliding process, the film is cut twice, and the film is cut open twice, which greatly reduces the possibility of the film breaking and failing. The connecting plate 3 on the hinge 2 is fixed to the pressure plate 4 by bolts 9. When the pressure plate 4 is squeezed, it drives the baffle 14 and the movable blade 5 to move synchronously. During the movement, the baffle 14 opens the seed output port 13, allowing the seeds to fall into the cut film, thus improving the seed sowing effect.

[0032] All technical features in this embodiment can be freely combined according to actual needs.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pneumatic duckbill, comprising a duckbill planting frame and a pressure plate (4) rotatably disposed on one side of the duckbill planting frame (1), characterized in that, A storage compartment (8) is provided at the center of the duckbill seeding rack (1), and a fixed blade (6) is installed at the bottom of the side wall of the duckbill seeding rack (1). An elastic hinge mechanism is provided between the duckbill seeding rack (1) and the pressure plate (4), and a movable blade (5) is fixed at the bottom of the pressure plate (4) at an incline.

2. The air-sucking duckbill according to claim 1, characterized in that, The top of the duckbill seeding rack (1) is fixedly installed with a base plate (11), and the side wall of the base plate (11) is provided with a through hole (12).

3. The air-sucking duckbill according to claim 1, characterized in that, The elastic hinge mechanism includes a hinge (2) and a rotating shaft (7) rotatably disposed in the hinge (2). The rotating shaft (7) is fixedly connected to the duckbill seeding frame (1), and a torsion spring is installed between the rotating shaft (7) and the hinge (2).

4. The air-sucking duckbill according to claim 3, characterized in that, A connecting plate (3) is fixedly installed on the side wall of the hinge (2), and the pressure plate (4) is U-shaped and fits against the connecting plate (3).

5. The air-sucking duckbill according to claim 4, characterized in that, Bolts (9) are symmetrically installed at the bottom end of the pressure plate (4), and the top end of the bolts (9) is threaded into the connecting plate (3).

6. The air-sucking duckbill according to claim 1, characterized in that, The side wall of the duckbill seeding rack (1) is provided with a protrusion (10), and the fixed blade (6) is fixedly connected to the protrusion (10).

7. The air-sucking duckbill according to claim 1, characterized in that, The bottom of the storage chamber (8) is provided with a seed outlet (13), and the top of the pressure plate (4) is fixed with a baffle (14) for sealing the seed outlet (13).

Images