Special duckbilled well cellar device for tobacco seedling transplanter

Abstract

The utility model relates to the technical field of tobacco planting, in particular to a special duckbilled well cellar device for a tobacco seedling transplanter, which is arranged on the tobacco seedling transplanter, is used for being inserted into and pushing open soil to form a well cellar, and comprises a mounting foundation, a shear fork assembly and a duckbilled half shell. The left and right sides of the front end of the mounting base are respectively provided with a fixed rotating shaft; the scissor fork assembly comprises a left scissor arm and a right scissor arm; the number of the duckbilled half shells is two, and the left scissor arm and the right scissor arm are each provided with one duckbilled half shell. According to the duckbilled well cellar device, the driven pull rod pulls the right scissor arm to swing upwards on the right side, then the driving circular shaft and the strip-shaped groove hole are matched to drive the left scissor arm to swing upwards on the left side, and finally the two duckbilled half shells are opened reversely at equal angles.

Description

Technical Field

[0001] This application relates to the field of tobacco planting technology, specifically to a duckbill-type well-cellar device for tobacco seedling transplanters. Background Technology

[0002] The duckbill-type well-cellar device is a core component of the tobacco seedling transplanter. Through hydraulic or mechanical linkage, the duckbill closes when inserted into the soil (reducing resistance) and opens after reaching the set depth, forming a "well-cellar" structure that is wider at the top and narrower at the bottom. Furthermore, the unique duckbill shape allows for lateral compression of the soil, preventing soil loosening caused by traditional drills, keeping the cellar walls compact, and facilitating moisture retention.

[0003] Existing well-pit devices have the following problems: the scissor mechanism used to control the opening angle of the duckbill portion inserted into the soil has a fork arm with a hinge shaft and an insertion arm with a strip-shaped hole that swings in opposite directions at equal angles. However, the maximum swing angle cannot be limited by the length of the strip-shaped hole, making it unsuitable for different working environments. Therefore, it is necessary to design a duckbill-type well-pit device that can adjust the maximum swing angle of the fork arm, i.e., the maximum opening and closing angle of the duckbill portion. Summary of the Invention

[0004] A special duckbill-type well-cellar device for tobacco seedling transplanters is installed on the tobacco seedling transplanter to insert and dig up the soil to form a well-cellar. It includes an installation foundation, a scissor assembly, and a duckbill half-shell.

[0005] The mounting base has a fixed rotating shaft on the left and right sides of its front end;

[0006] The scissor lift assembly includes a left scissor arm and a right scissor arm; the left scissor arm includes a left arm body, a left arm pivot hole located on the right side of the left arm body and hinged to a fixed pivot shaft located on the right side, and a strip-shaped slot hole located on the left arm body; the right scissor arm includes a right arm body, a right arm pivot hole located on the left side of the right arm body and hinged to a fixed pivot shaft located on the left side, a drive shaft located on the right arm body and inserted into the strip-shaped slot hole, and a driven pull rod located on the right side of the right arm body; the left arm body includes a first left arm portion located on the right side and a second left arm portion located on the left side, the second left arm portion being deflected counterclockwise relative to the first left arm portion; the right arm body includes a first right arm portion located on the left side and a second right arm portion located on the right side, the second right arm portion being deflected clockwise relative to the first right arm portion.

[0007] Two duckbill half-shells are provided, with one duckbill half-shell on each of the left and right scissor arms.

[0008] As a further implementation plan:

[0009] The left scissor arm is also provided with an opening limiter for adjusting the opening on the right side of the strip slot;

[0010] The opening limiter includes:

[0011] The outer casing is fixedly mounted on the left arm body;

[0012] A limiting slide plate is slidably disposed within the fixed housing. The limiting slide plate slides to the left and covers the strip-shaped slot.

[0013] The fixed outer shell includes a rectangular shell and an inner through hole provided in the rectangular shell. Limit lock holes are distributed at equal intervals along the upper and lower edges of the inner through hole. An upper through hole is also provided above the inner through hole.

[0014] The limiting slide plate includes a slide plate body that is slidably disposed within the through hole in the shell, a rotating circular hole disposed within the slide plate body, and an upper slide plate hole connected above the rotating circular hole. A locking lower hole is provided below the upper slide plate hole in the front and rear directions respectively. A planar threaded disc is rotatably disposed within the rotating circular hole. A torsion shaft is disposed above the planar threaded disc, passing through the upper slide plate hole and the upper through hole. A return torsion spring is wound on the torsion shaft. A driven locking rod is slidably disposed within the locking lower hole. A driven insert is provided on the driven locking rod that engages with the planar threaded disc.

[0015] Beneficial effects:

[0016] The duckbill-type well-hole device described in this case uses a driven lever to pull the right scissor arm to swing upwards to the right, which in turn drives the left scissor arm to swing upwards to the left through the cooperation between the driving shaft and the strip-shaped slot, ultimately achieving the equal-angled and opposite opening of the two duckbill half-shells.

[0017] The duckbill-type well-hole device described in this case is equipped with an opening limiter. By adjusting the position of the limiting slide plate on the fixed shell, the degree to which the strip-shaped slot is covered by the limiting slide plate is adjusted, thereby adjusting the effective distance that the right side of the strip-shaped slot can accommodate the sliding of the drive shaft, and finally adjusting the opening and closing angle of the scissor assembly and the duckbill half shell. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one embodiment of the duckbill-type well pit device.

[0019] Figure 2 This is a side view of one embodiment of the duckbill-type well sinker.

[0020] Figure 3 This is a front view of one embodiment of the duckbill-type well pit device.

[0021] Figure 4 This is a schematic diagram of one embodiment of the scissor lift assembly.

[0022] Figure 5 This is a schematic diagram of another embodiment of the scissor assembly.

[0023] Figure 6 This is a schematic diagram of one embodiment of the opening limiter.

[0024] Figure 7 yes Figure 6 Sectional view of section A-A.

[0025] In the picture:

[0026] 9. Install the foundation; 91. Fix the shaft;

[0027] 8. Scissor lift assembly; 81. Left scissor arm; 811. Left arm body; 812. Left arm pivot hole; 813. Strip slot hole; 82. Right scissor arm; 821. Right arm body; 822. Right arm pivot hole; 823. Drive shaft; 824. Driven pull rod;

[0028] 6. Duckbill half-shell;

[0029] 7. Opening limiter;

[0030] 71. Fixed outer shell; 711. Rectangular shell; 712. Internal through hole; 713. Limiting lock hole; 714. Top through hole;

[0031] 72. Limiting slide plate; 721. Slide plate body; 722. Rotating circular hole; 723. Upper hole of slide plate; 724. Lower locking hole; 725. Flat threaded disc; 726. Torsion shaft; 727. Return torsion spring; 728. Driven locking rod; 729. Driven insert block. Detailed Implementation

[0032] A special duckbill-type well-cellar device for tobacco seedling transplanters is installed on the tobacco seedling transplanter to insert and dig up the soil to form a well-cellar. It includes an installation base 9, a scissor assembly 8, and a duckbill half-shell 6.

[0033] The mounting base 9 has a fixed rotating shaft 91 on the left and right front ends, respectively.

[0034] The scissor lift assembly 8 includes a left scissor arm 81 and a right scissor arm 82. The left scissor arm 81 includes a left arm body 811, a left arm pivot hole 812 located on the right side of the left arm body 811 and hinged to a fixed pivot 91 located on the right side, and a strip-shaped slot 813 located on the left arm body 811. The right scissor arm 82 includes a right arm body 821, a right arm pivot hole 822 located on the left side of the right arm body 821 and hinged to a fixed pivot 91 located on the left side, and a strip-shaped slot 813 located on the right arm body 811. The drive shaft 823 is inserted into the slot 813 on the right arm body 821, and the driven pull rod 824 is located on the right side of the right arm body 821; the left arm body 811 includes a first part of the left arm located on the right side and a second part of the left arm located on the left side, the second part of the left arm being deflected counterclockwise relative to the first part of the left arm; the right arm body 821 includes a first part of the right arm located on the left side and a second part of the right arm located on the right side, the second part of the right arm being deflected clockwise relative to the first part of the right arm.

[0035] Two duckbill half-shells 6 are provided, and one duckbill half-shell 6 is provided on each of the left scissor arms 81 and the right scissor arms 82.

[0036] As a further implementation plan:

[0037] The left scissor arm 81 is also provided with an opening limiter 7 for adjusting the opening on the right side of the strip slot 813;

[0038] The opening limiter 7 includes:

[0039] The outer casing 71 is fixedly mounted on the left arm body 811;

[0040] The limiting slide plate 72 is slidably disposed inside the fixed housing 71. The limiting slide plate 72 slides to the left and covers the strip-shaped slot 813.

[0041] The fixed outer shell 71 includes a rectangular shell 711 and an inner through hole 712 provided in the rectangular shell 711. Limiting lock holes 713 are distributed at equal intervals on the upper and lower edges of the inner through hole 712. An upper through hole 714 is also provided above the inner through hole 712.

[0042] The limiting slide plate 72 includes a slide plate body 721 slidably disposed within the through hole 712 in the shell, a rotating circular hole 722 disposed within the slide plate body 721, and a slide plate upper hole 723 communicating with the rotating circular hole 722. A locking lower hole 724 is provided below the slide plate upper hole 723 in the front and rear directions respectively. A planar threaded disk 725 is rotatably disposed within the rotating circular hole 722. A torsion shaft 726 is disposed above the planar threaded disk 725, passing through the slide plate upper hole 723 and the upper through hole 714. A return torsion spring 727 is wound around the torsion shaft 726. A driven locking rod 728 is slidably disposed within the locking lower hole 724. A driven insert 729 is provided on the driven locking rod 728 that engages with the planar threaded disk 725.

[0043] The fixed outer shell 71 is welded and fixed to the left arm body 811.

[0044] The fixed outer shell 71 is fixed to the left arm body 811 by bolts.

[0045] The duckbill-type pit excavator described in this case is driven downward by a tobacco seedling transplanter and inserted into the soil. Then, the scissor assembly 8 drives the two duckbill halves 6 to open and close, thus excavating a pit-type hole in the soil.

[0046] The driven pull rod 824 is pulled by the corresponding longitudinal pull rod of the tobacco seedling transplanter, which in turn drives the right scissor arm 82 to swing in an upward posture on the right side. The driving round shaft 823 acts on the strip-shaped slot hole 813, which in turn drives the left scissor arm 81 to swing in an upward posture on the left side. The right scissor arm 82 and the left scissor arm 81 respectively drive the corresponding duckbill half shell 6 to open.

[0047] The opening limiter 7 described in this case can limit the extreme position of the drive shaft 823 to the right within the slot 813, thereby limiting the opening size of the two duckbill half-shells 6:

[0048] The torsion shaft 726 and the flat threaded disc 725 are twisted to overcome the damping of the return torsion spring 727 and rotate.

[0049] The planar threaded disc 725 acts on the driven insert 729, thereby driving a pair of driven locking rods 728 to move closer to each other;

[0050] The driven locking rod 728 is pulled out from the limiting locking hole 713, the sliding freedom of the limiting slide plate 72 is unlocked, and the position of the limiting slide plate 72 relative to the fixed shell 71 is adjusted.

[0051] When the torsion shaft 726 is released, the reset torsion spring 727 drives the planar threaded disk 725 to rotate in the opposite direction, ultimately achieving the goal of moving a pair of driven locking rods 728 away from each other and inserting them into the limiting locking hole 713 to complete the fixation.

Claims

1. A duckbill-type well-cellar device specifically for tobacco seedling transplanters, installed on the tobacco seedling transplanter, used to insert and dig up the soil to form a well-cellar, characterized in that: include: The mounting base (9) has a fixed rotating shaft (91) on the left and right front ends respectively; The scissor lift assembly (8) includes a left scissor arm (81) and a right scissor arm (82); The left scissor arm (81) includes a left arm body (811), a left arm pivot hole (812) located on the right side of the left arm body (811) and hinged to a fixed pivot (91) located on the right side, and a strip-shaped slot hole (813) located on the left arm body (811). The right scissor arm (82) includes a right arm body (821), a right arm pivot hole (822) located on the left side of the right arm body (821) and hinged to a fixed pivot (91) located on the left side, a drive shaft (823) located on the right arm body (821) and inserted into a strip-shaped slot hole (813), and a driven pull rod (824) located on the right side of the right arm body (821). Two duckbill half-shells (6) are provided, one duckbill half-shell (6) is provided on the left scissor arm (81) and the right scissor arm (82); The left scissor arm (81) is also provided with an opening limiter (7) for adjusting the opening on the right side of the strip slot (813); The opening limiter (7) includes: The outer casing (71) is fixedly mounted on the left arm body (811); A limiting slide plate (72) is slidably disposed inside the fixed housing (71). The limiting slide plate (72) slides to the left and covers the strip-shaped slot (813).

2. The duckbill-type well-cellar device for tobacco seedling transplanters according to claim 1, characterized in that: The fixed outer shell (71) includes a rectangular shell (711) and an inner through hole (712) provided in the rectangular shell (711). Limit lock holes (713) are distributed at equal intervals on the upper and lower edges of the inner through hole (712). An upper through hole (714) is also provided above the inner through hole (712). The limiting slide plate (72) includes a slide plate body (721) slidably disposed in the through hole (712) inside the shell, a rotating circular hole (722) disposed in the slide plate body (721), and a slide plate upper hole (723) connected above the rotating circular hole (722). A locking lower hole (724) is provided below the upper hole (723) in the front and rear directions respectively. A flat threaded disc (725) is rotatably disposed in the rotating circular hole (722). A torsion shaft (726) is provided above the flat threaded disc (725) and passing through the upper hole (723) and the upper through hole (714). A reset torsion spring (727) is wound on the torsion shaft (726). A driven locking rod (728) is slidably disposed in the locking lower hole (724). A driven insert (729) that engages with the flat threaded disc (725) is provided on the driven locking rod (728).

3. The duckbill-type well-cellar device for tobacco seedling transplanters according to claim 2, characterized in that: The left arm body (811) includes a first part of the left arm located on the right and a second part of the left arm located on the left, the second part of the left arm being deflected counterclockwise relative to the first part of the left arm.

4. The duckbill-type well-cellar device for tobacco seedling transplanters according to claim 3, characterized in that: The right arm body (821) includes a first part of the right arm located on the left and a second part of the right arm located on the right, the second part of the right arm being rotated clockwise relative to the first part of the right arm.

5. The duckbill-type well-cellar device for tobacco seedling transplanters according to claim 4, characterized in that: The fixed outer shell (71) is welded and fixed to the left arm body (811).

6. The duckbill-type well-cellar device for tobacco seedling transplanters according to claim 5, characterized in that: The fixed outer shell (71) is fixed to the left arm body (811) by bolts.

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