Pit digging device for seedling planting

Abstract

The utility model relates to the technical field of pit digging devices, and discloses a pit digging device for seedling planting. Comprising a lifting frame, a machine barrel is fixedly installed on the surface of the lifting frame, a motor is fixedly installed on the circumferential side face of the machine barrel, a drilling barrel is rotationally connected to the inner wall of the machine barrel, a set of regularly-distributed soil discharging holes are formed in the lower portion of the drilling barrel, and a spiral conveying module is installed at the axis position of the drilling barrel; and the drilling barrel, the revolution frame and the spiral conveying module are all driven by a motor, the inner wall of the revolution frame is slidably connected with two symmetrically-arranged digging modules, the outer side of the machine barrel is sleeved with a driving ring, and two vertically-arranged adjusting push rods are installed between the opposite surfaces of the driving ring and the machine barrel. When the pit digging device performs pit digging operation, the pit digging diameter can be adjusted according to actual operation requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of pit digging devices, in particular to a pit digging device for planting seedlings. Background Art

[0002] During existing garden planting, a pit digging device is often needed.

[0003] In the prior art, a patent document with the announcement number CN210745965U discloses a pit digging device for garden planting, including a base, a cart handle fixedly installed on one side of the base, the cart handle is arranged in an inclined manner, a through hole is fixedly provided on the top of the base, and four wheels are respectively installed at the four corners of the bottom of the base, which is characterized in that: two sleeves are symmetrically fixedly installed on both sides of the top of the base, two sliders are respectively slidably connected in the two sleeves, two springs are respectively arranged in the two sleeves, the bottom end of the spring is fixedly connected to the bottom surface of the sleeve, the top end of the spring is fixedly connected to the bottom end of the slider, and the top end of the slider is fixedly connected to a sliding rod The top of the sliding rod passes through the sleeve and is slidably connected with the sleeve, and a mounting plate is arranged directly above the base. The above-mentioned device is provided with a collecting cylinder, and the soil generated when digging the pit is lifted by the auger blades, and the fan-shaped baffle is used to block the fan-shaped groove so that the soil generated when digging the pit is stored in the collecting cylinder, thereby avoiding the splashing of soil and affecting the surrounding environment. However, the pit diameter specifications formed by the above-mentioned pit digging device when digging the pit are relatively limited and the pit diameter cannot be adjusted according to the actual pit digging needs. Based on this, the utility model provides a pit digging device for seedling planting to solve the technical problems raised in the above-mentioned background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a pit digging device for seedling planting, which solves the problem that the pit diameter specifications formed by the existing pit digging device when digging are relatively limited and the pit diameter cannot be adjusted according to the actual pit digging needs. In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A hole digging device for planting seedlings comprises a lifting frame, a barrel is fixedly mounted on the surface of the lifting frame, a motor is fixedly mounted on the peripheral side of the barrel, a drill barrel is rotatably connected to the inner wall of the barrel, a group of regularly distributed soil discharge holes are opened at the lower part of the drill barrel, a spiral conveying module is mounted on the axial position of the drill barrel, a revolving frame is rotatably connected to the peripheral side of the drill barrel, the drill barrel, the revolving frame and the spiral conveying module are all driven by a motor, two symmetrically arranged digging modules are slidably connected to the inner wall of the revolving frame, a driving ring is sleeved on the outer side of the barrel, two vertically arranged adjusting push rods are installed between the driving ring and the relative surface of the barrel, the inner wall of the driving ring is rotatably connected to a guide ring, the surfaces of the two digging modules are both connected to the guide ring, and an inner bevel gear ring connected to the digging module is fixedly mounted on the peripheral side of the drill barrel.

[0006] Preferably, the spiral conveying module includes a conveying shaft rotatably connected to the axis position of the drill barrel, a spiral conveying plate is fixedly installed on the circumferential side surface of the conveying shaft, the circumferential side surface of the spiral conveying plate is rotationally fitted with the drill barrel, a group of discharge holes distributed in a circular array are opened on the upper part of the drill barrel, the circumferential side surface of the barrel and the positions of adjacent discharge holes are fixedly connected with a soil drainage pipe, and the conveying shaft is driven by a motor.

[0007] Preferably, the conveying shaft and the upper part of the drill tube are fixedly mounted with a first driven bevel gear, an output shaft end of the motor is fixedly mounted with a driving bevel gear, the bevel tooth surface of the driving bevel gear is respectively transmission-connected with the two first driven bevel gears, the inner wall of the lifting frame is rotationally connected with a side shaft, the top end of the side shaft and the other output shaft end of the motor are fixedly mounted with a second driven bevel gear, the two second driven bevel gears are meshed with each other, and the peripheral side surface of the side shaft is transmission-connected with the revolving frame via a belt.

[0008] Preferably, the excavation module respectively includes a guide groove opened on the inner wall of the revolving frame and a transmission shaft rotatably connected to the inner wall of the revolving frame, the inner wall of the guide groove is slidably connected with a positioning block, both side surfaces of the positioning block are hinged with connecting rods, the other ends of the two connecting rods are hinged with the guide ring, the inner wall of the positioning block is rotatably connected with the excavation shaft and the driven sleeve, the circumferential side surface of the transmission shaft is transmission-connected and slidably matched with the driven sleeve, the circumferential side surface of the driven sleeve and the top end of the excavation shaft are fixedly installed with a third driven bevel gear, the two third driven bevel gears are meshed with each other, the circumferential side surface of the excavation shaft is fixedly installed with a spiral excavation blade, the tail end of the transmission shaft is fixedly installed with a fourth driven bevel gear, and the bevel tooth surface of the fourth driven bevel gear is transmission-connected with the inner bevel gear ring.

[0009] Preferably, the axes of the driven sleeve and the transmission shaft are perpendicular to the axis of the drill tube, the driven sleeve is fixedly provided with an axis groove with openings at both ends and slidably connected to the transmission shaft, and the cross-sections of the axis groove and the transmission shaft are both regular polygons.

[0010] Preferably, a spiral drill rib is fixedly installed on the peripheral side surface of the drill barrel, a group of drill teeth distributed in a circular array is installed on the bottom end of the drill barrel, and the bottom ends of the conveying shaft and the excavation shaft are both provided with a pointed cone portion.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0012] 1. When performing a pit digging operation, the pit digging device can adjust the pit diameter according to actual operation requirements.

[0013] 2. When the pit digging device is digging, the lifting frame gradually moves downward under the driving action of the external load equipment. During the downward movement of the lifting frame, the motor continuously outputs the rotation speed. After the motor outputs the rotation speed, the spiral conveyor plate transports the soil upward, and the two spiral digging plates dig downward. At the same time, after the motor outputs the rotation speed, the revolution frame drives the two spiral digging plates to revolve at a set speed, thereby forming a circular pit. During the process of the motor outputting the rotation speed, the two adjusting push rods slowly move until the two adjusting push rods drive the guide ring or the positioning block to move to the specified stroke. The waste soil generated during the pit digging process is finally discharged through the soil discharge pipe under the action of the spiral conveyor plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of a pit digging device for seedling planting;

[0015] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0016] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of;

[0017] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0018] Figure 5 for Figure 3 Schematic diagram of the local enlarged structure at point C in the middle.

[0019] Among them: 1. lifting frame; 2. machine barrel; 3. motor; 4. drill barrel; 5. soil discharge hole; 6. revolution frame; 7. drive ring; 8. adjustment push rod; 9. guide ring; 10. inner bevel gear ring; 11. conveying shaft; 12. spiral conveying piece; 13. discharge hole; 14. soil discharge pipe; 15. side shaft; 16. transmission shaft; 17. positioning block; 18. connecting rod; 19. excavation shaft; 20. driven casing; 21. spiral excavation piece; 22. spiral drill rib. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 , a pit digging device for seedling planting, comprising a lifting frame 1;

[0022] When working, the lifting frame 1 is connected to an external load device, and the external load device is used to drive the lifting frame 1 to move up and down;

[0023] A barrel 2 is fixedly mounted on the surface of the lifting frame 1, a motor 3 is fixedly mounted on the peripheral side of the barrel 2, a drill barrel 4 is rotatably connected to the inner wall of the barrel 2, a spiral drill rib 22 is fixedly mounted on the peripheral side of the drill barrel 4, and a group of drill teeth distributed in a circumferential array are mounted on the bottom end of the drill barrel 4;

[0024] A group of regularly distributed soil discharge holes 5 are opened at the lower part of the drill tube 4, a screw conveying module is installed at the axial position of the drill tube 4, and a revolution frame 6 is rotatably connected to the peripheral side of the drill tube 4. The drill tube 4, the revolution frame 6 and the screw conveying module are all driven by a motor 3;

[0025] The spiral conveying module includes a conveying shaft 11 rotatably connected to the axial position of the drill barrel 4, a spiral conveying sheet 12 is fixedly installed on the circumferential side of the conveying shaft 11, the circumferential side of the spiral conveying sheet 12 is rotationally fitted with the drill barrel 4, a group of discharge holes 13 distributed in a circular array are opened on the upper part of the drill barrel 4, and a soil-draining pipe 14 is fixedly connected to the circumferential side of the barrel 2 and the position adjacent to the discharge hole 13, and the conveying shaft 11 is driven by a motor 3.

[0026] The conveying shaft 11 and the upper part of the drill tube 4 are both fixedly installed with a first driven bevel gear, an output shaft end of the motor 3 is fixedly installed with a driving bevel gear, and the bevel tooth surface of the driving bevel gear is respectively connected to the two first driven bevel gears by transmission, and the inner wall of the lifting frame 1 is rotatably connected with a side shaft 15, and the top end of the side shaft 15 and the other output shaft end of the motor 3 are both fixedly installed with a second driven bevel gear, and the two second driven bevel gears are meshed with each other, and the peripheral side surface of the side shaft 15 is connected to the revolution frame 6 by transmission through a belt;

[0027] The inner wall of the revolving frame 6 is slidably connected to two symmetrically arranged earth-moving modules, the outer side of the barrel 2 is sleeved with a driving ring 7, and two vertically arranged adjusting push rods 8 are installed between the driving ring 7 and the relative surfaces of the barrel 2. The inner wall of the driving ring 7 is rotatably connected to a guide ring 9, and the surfaces of the two earth-moving modules are connected to the guide ring 9. The peripheral side of the drill barrel 4 is fixedly installed with an inner bevel gear ring 10 connected to the earth-moving modules.

[0028] The earth-moving module comprises a guide groove provided on the inner wall of the revolution frame 6 and a transmission shaft 16 rotatably connected to the inner wall of the revolution frame 6. A positioning block 17 is slidably connected to the inner wall of the guide groove. Both sides of the positioning block 17 are hinged with connecting rods 18. The other ends of the two connecting rods 18 are hinged to the guide ring 9.

[0029] The inner wall of the positioning block 17 is rotatably connected with the excavation shaft 19 and the driven sleeve 20, and the peripheral side surface of the transmission shaft 16 is transmission-connected and slidingly matched with the driven sleeve 20;

[0030] The axes of the driven sleeve 20 and the transmission shaft 16 are perpendicular to the axis of the drill tube 4. The driven sleeve 20 is provided with an axis groove with two ends open and slidably connected to the transmission shaft 16. The cross sections of the axis groove and the transmission shaft 16 are both regular polygons.

[0031] The side surface of the driven casing 20 and the top of the tunneling shaft 19 are both fixedly mounted with third driven bevel gears, and the two third driven bevel gears are meshed with each other;

[0032] A spiral excavating blade 21 is fixedly mounted on the peripheral side surface of the excavation shaft 19 , and a fourth driven bevel gear is fixedly mounted on the tail end of the transmission shaft 16 . The bevel tooth surface of the fourth driven bevel gear is transmission-connected to the inner bevel gear ring 10 .

[0033] The bottom ends of the conveying shaft 11 and the excavation shaft 19 are both provided with a pointed cone portion.

[0034] When working, the lifting frame 1 is connected to an external load device, and the external load device is used to drive the lifting frame 1 to rise and fall. When in use, under the driving action of the external load device, the device moves to the designated digging position. Before the digging operation, the maximum displacement stroke of the adjustment push rod 8 is set according to the digging hole diameter;

[0035] During the pit digging operation, under the driving action of the external load equipment, the lifting frame 1 gradually moves downward. During the downward movement of the lifting frame 1, the motor 3 continuously outputs the rotation speed. After the motor 3 outputs the rotation speed, the spiral conveying piece 12 transports the soil upward, and the two spiral digging pieces 21 dig downward. At the same time, after the motor 3 outputs the rotation speed, the revolving frame 6 drives the two spiral digging pieces 21 to revolve at a set speed, thereby forming a circular pit. In the process of the motor 3 outputting the rotation speed, the two adjusting push rods 8 slowly move until the two adjusting push rods 8 drive the guide ring 9 or the positioning block 17 to move to the specified stroke. The waste soil generated during the pit digging process is finally discharged through the soil discharge pipe 14 under the action of the spiral conveying piece 12.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pit digging device for seedling planting, comprising a lifting frame (1), characterized in that: A barrel (2) is fixedly mounted on the surface of the lifting frame (1), a motor (3) is fixedly mounted on the peripheral side of the barrel (2), a drill barrel (4) is rotatably connected to the inner wall of the barrel (2), a group of regularly distributed soil discharge holes (5) are opened at the lower part of the drill barrel (4), a screw conveying module is mounted on the axis of the drill barrel (4), a revolution frame (6) is rotatably connected to the peripheral side of the drill barrel (4), and the drill barrel (4), the revolution frame (6) and the screw conveying module are all driven by the motor (3). The inner wall of the revolving frame (6) is slidably connected to two symmetrically arranged earth-moving modules, the outer side of the machine barrel (2) is sleeved with a driving ring (7), and two vertically arranged adjustment push rods (8) are installed between the driving ring (7) and the relative surfaces of the machine barrel (2), the inner wall of the driving ring (7) is rotatably connected to a guide ring (9), the surfaces of the two earth-moving modules are connected to the guide ring (9), and the peripheral side of the drill barrel (4) is fixedly installed with an inner bevel gear ring (10) connected to the earth-moving modules.

2. The seedling planting hole digging device according to claim 1, characterized in that: The screw conveying module comprises a conveying shaft (11) rotatably connected to the axis position of a drill barrel (4); a screw conveying sheet (12) is fixedly mounted on the circumferential side surface of the conveying shaft (11); the circumferential side surface of the screw conveying sheet (12) is rotatably fitted with the drill barrel (4); a group of discharge holes (13) distributed in a circular array are opened on the upper part of the drill barrel (4); a soil drainage pipe (14) is fixedly connected to the circumferential side surface of the barrel (2) and the position of the adjacent discharge holes (13); and the conveying shaft (11) is driven by a motor (3).

3. The seedling planting hole digging device according to claim 2, characterized in that: The conveying shaft (11) and the upper part of the drill tube (4) are both fixedly mounted with a first driven bevel gear, an output shaft end of the motor (3) is fixedly mounted with a driving bevel gear, the bevel tooth surface of the driving bevel gear is respectively connected to the two first driven bevel gears in driving connection, the inner wall of the lifting frame (1) is rotatably connected with a side shaft (15), the top end of the side shaft (15) and the other output shaft end of the motor (3) are both fixedly mounted with a second driven bevel gear, the two second driven bevel gears are meshed with each other, and the peripheral side surface of the side shaft (15) is connected to the revolving frame (6) in driving connection via a belt.

4. The seedling planting hole digging device according to claim 3, characterized in that: The excavation module comprises a guide groove formed on the inner wall of the revolving frame (6) and a transmission shaft (16) rotatably connected to the inner wall of the revolving frame (6); a positioning block (17) is slidably connected to the inner wall of the guide groove; connecting rods (18) are hingedly connected to both sides of the positioning block (17); the other ends of the two connecting rods (18) are hingedly connected to the guide ring (9); the inner wall of the positioning block (17) is rotatably connected to the excavation shaft (19) and the driven sleeve (20); the transmission shaft The circumferential side surface of the driven sleeve (16) is connected to the driven sleeve (20) in a transmission manner and is also slidably matched. The circumferential side surface of the driven sleeve (20) and the top end of the tunneling shaft (19) are both fixedly mounted with third driven bevel teeth, and the two third driven bevel teeth are meshed with each other. The circumferential side surface of the tunneling shaft (19) is fixedly mounted with a spiral excavation blade (21). The tail end of the transmission shaft (16) is fixedly mounted with a fourth driven bevel tooth, and the bevel tooth surface of the fourth driven bevel tooth is connected to the inner bevel gear ring (10) in a transmission manner.

5. The seedling planting hole digging device according to claim 4, characterized in that: The axes of the driven sleeve (20) and the transmission shaft (16) are both perpendicular to the axis of the drill tube (4); an axis groove with two ends open and slidably connected to the transmission shaft (16) is fixedly provided inside the driven sleeve (20); and the cross-sections of the axis groove and the transmission shaft (16) are both regular polygons.

6. The seedling planting hole digging device according to claim 5, characterized in that: A spiral drill rib (22) is fixedly mounted on the peripheral side surface of the drill barrel (4), a group of drill teeth distributed in a circumferential array is mounted on the bottom end of the drill barrel (4), and a pointed cone portion is disposed at the bottom ends of the conveying shaft (11) and the excavation shaft (19).

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