Fruit tree planting soil excavation device

Abstract

The utility model discloses a fruit tree planting soil excavation device which comprises a machine frame, the machine frame comprises a supporting plate and a supporting column, the supporting column is fixedly installed on the edge of the bottom face of the supporting plate, a push rod is arranged on the edge of one side of the supporting plate, universal wheels are connected to the bottom of the supporting column, and a driving device is installed on the supporting plate. The output end of the driving device is connected with a rotating shaft, the driving device is used for driving the rotating shaft to rotate and move downwards, the rotating shaft is fixedly connected with a spiral blade, the end, away from the motor, of the rotating shaft is connected with a drill bit, and a baffle is arranged on the upper side surface of the end, close to the drill bit, of the spiral blade and rotationally connected with the spiral blade through a pin shaft; a reset mechanism is arranged on the baffle and used for driving the baffle to return to the original position so as to intercept soil sliding down along the surface of the spiral blade. During pit digging, soil is discharged upwards along the spiral blade, and when pit digging is stopped, the soil is blocked by the baffle when sliding downwards along the surface of the spiral blade, so that the soil is effectively prevented from being backfilled to the pit bottom.

Description

TECHNICAL FIELD

[0001] The utility model relates to a planting technical field, especially a fruit tree planting soil excavation device. BACKGROUND

[0002] When planting fruit trees, it is necessary to dig a hole first and then plant the sapling in the hole. Traditional manual digging with a shovel is time-consuming and laborious. Now, a spiral drill bit excavation device is mainly used for mechanical operation.

[0003] Chinese patent CN211745236U discloses a soil loosening device for peach tree planting. A blocking cylinder is sleeved on the outer side of the spiral blade to limit the soil thrown out by the centrifugal force of the spiral blade, so that the loosened soil surrounds the hole, facilitating backfilling of the loosened soil during subsequent planting, saving planting time, and avoiding splashing during soil loosening.

[0004] However, after the hole reaches the required depth, the rotation of the drill bit and the spiral blade is stopped, and the spiral blade is lifted upward. At this time, some soil will slide down along the surface of the spiral blade, causing backfilling of the soil. During subsequent planting of the sapling, the actual planting depth of the sapling does not meet the standard, which is not conducive to the growth of the subsequent sapling. SUMMARY

[0005] In view of the above prior art, the utility model provides a fruit tree planting soil excavation device. A baffle is arranged on the upper side surface of the lower end of the spiral blade. When the soil is excavated downward in a spiral manner, the soil pushes the baffle against the surface of the spiral blade, and the soil is normally lifted and removed along the spiral blade. When the rotation is stopped, there is no soil pressing on the baffle above, and under the action of the elastic force of the torsional spring, the baffle is turned upward, preventing the soil from sliding down along the surface of the spiral blade to the bottom of the hole.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model embodiment is as follows:

[0007] A fruit tree planting soil excavation device includes a rack, the rack includes a support plate and a support column, the support column is fixedly installed at the bottom edge of the support plate, a push rod is arranged at one side edge of the support plate, a universal wheel is connected to the bottom of the support column, a driving device is installed on the support plate, an output end of the driving device is connected to a rotating shaft, the driving device is used to drive the rotating shaft to rotate and move downward, a spiral blade is fixedly connected to the rotating shaft, a drill bit is connected to one end of the rotating shaft away from the motor, a baffle is arranged on the upper side surface of one end of the spiral blade close to the drill bit, the baffle is rotatably connected to the spiral blade through a pin shaft, a reset mechanism is arranged on the baffle, and the reset mechanism is used to drive the baffle to return to the original position to intercept the soil sliding down along the surface of the spiral blade.

[0008] Further, the reset mechanism is a torsion spring reset mechanism, the torsion spring reset mechanism comprises a torsion spring, the torsion spring is sleeved on the pin shaft, and the two arms of the torsion spring are fixedly connected with the baffle and the spiral blade respectively.

[0009] Further, the rotation shaft is provided with a limiting column, and the limiting column is used for limiting the baffle from being excessively opened to protect the torsion spring.

[0010] Further, the reset mechanism is a tension spring reset mechanism, the tension spring reset mechanism comprises a sleeve, a sliding rod is slidably connected in the sleeve, a spring is arranged in the sleeve, and the two ends of the spring are fixedly connected with the sleeve and the sliding rod respectively, the rotation shaft is provided with a convex cross bar, one end of the sleeve away from the sliding rod is rotationally connected with the cross bar, and the other end of the sliding rod away from the sleeve is rotationally connected with the baffle.

[0011] Further, the spiral blade is provided with a groove, and the size and position of the groove are matched with the baffle.

[0012] Further, the axial direction of the pin shaft is arranged along the width direction of the spiral blade, the length of the pin shaft is consistent with the width of the spiral blade, the shape of the side edge of the baffle away from the rotation shaft is consistent with the shape of the outer side edge of the spiral blade, and the side edge of the baffle close to the rotation shaft is perpendicular to the pin shaft.

[0013] Further, the driving device comprises a cylinder, the cylinder is mounted on the supporting plate, a piston rod of the cylinder penetrates through the supporting plate and is slidably connected with the supporting plate, the other end of the piston rod away from the cylinder is fixedly connected with a movable plate, a limiting rod is fixedly connected to the lower side surface of the supporting plate, the limiting rod penetrates through the movable plate and is slidably connected with the movable plate, a motor is mounted on the lower side surface of the movable plate, and the output shaft of the motor is fixedly connected with the rotation shaft.

[0014] The utility model discloses a beneficial effect lies in: the baffle is arranged on the upper side surface of the lower end of the spiral blade, when spirally digging downwards, the soil spiraling upwards pushes the baffle to be close to the surface of the spiral blade, the soil is normally lifted along the spiral blade and is not influenced, when stopping rotating, the soil does not press the baffle, under the action of the reset mechanism, the baffle turns up, the soil sliding along the surface of the spiral blade is blocked by the baffle, the side is blocked by the pit wall, and will not slide to the pit bottom, after lifting the spiral blade out of the pit, the soil on the spiral blade is discharged from the side of the spiral blade, and the soil is effectively prevented from backfilling to the pit bottom and causing the insufficient depth of the dug tree pit. DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the fruit tree planting soil excavation device;

[0016] Figure 2 It is a spiral blade schematic view of the fruit tree planting soil excavation device;

[0017] Figure 3The first reset mechanism schematic view of the fruit tree planting soil excavating device;

[0018] Figure 4 The second reset mechanism schematic view of the fruit tree planting soil excavating device;

[0019] Figure 5 The A area of the utility model Figure 4 enlarged view.

[0020] The number of the drawing is explained: 1, push rod; 2, support plate; 3, air cylinder; 4, limit rod; 5, movable plate; 6, motor; 7, rotating shaft; 8, support column; 9, universal wheel; 10, spiral blade; 11, drill bit; 12, recess; 13, baffle; 14, torsional spring; 15, limit column; 16, cross bar; 17, sleeve; 18, slide bar; 19, spring. Specific implementation

[0021] The technical scheme of the utility model is further described in detail below in combination with the drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as understood by those skilled in the art to which the utility model belongs. The terms used in the specification of the utility model in this document are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0022] Embodiment one

[0023] In combination with the drawings Figures 1 to 4The utility model provides a kind of fruit tree planting soil excavation device, including rack, rack includes support plate 2 and support column 8, support column 8 is fixedly installed in the bottom surface edge of support plate 2, the side edge of support plate 2 is provided with push rod 1, the bottom of support column 8 is connected with universal wheel 9, drive device is installed on support plate 2, the output of drive device is connected with shaft 7, drive device is used to drive shaft 7 rotation and move downward, shaft 7 is fixedly connected with helical blade 10, one end of shaft 7 away from motor 6 is connected with drill bit 11, the upper side surface of one end of helical blade 10 close to drill bit 11 is provided with baffle 13, baffle 13 is rotatably connected with helical blade 10 by pin shaft, reset mechanism is provided on baffle 13, reset mechanism is used to drive baffle 13 to recover to original position to intercept soil that slides along the surface of helical blade 10.In use, excavation device is moved to the position that needs to dig, starts drive device, shaft 7 rotates, drill bit 11 connected at the bottom of shaft 7 is constantly chopped soil under the pressure of downward, in the rotation of helical blade 10, soil moves upward along the upper side surface of helical blade 10, in this process, helical upward soil drives baffle 13 to rotate downward to adhere to helical blade 10, after leaving pit wall, soil spreads around, after digging to the depth required, stop drive device, the soil remaining on helical blade 10 slides downward along the surface of helical blade 10, when sliding to the end of helical blade 10 close to drill bit 11, baffle 13 is no longer pushed by soil, under the action of reset mechanism, baffle 13 rotates upward to recover to original position, and the soil that slides downward is blocked, after helical blade 10 is taken out of pit, the soil that baffle 13 blocks does not need to be cleaned, when excavating another tree pit, when helical blade 10 is on ground, the helical blade 10 that rotates will naturally throw soil out of helical blade 10, without manual cleaning, save time and effort, effectively avoid soil to slide along the surface of helical blade 10 to pit bottom, ensure that the depth of tree pit that excavation device digs does not because soil backfill is not up to standard.

[0024] Preferably, the reset mechanism is a torsional spring reset mechanism, which includes a torsional spring 14, the torsional spring 14 is sleeved on the pin shaft, and the two arms of the torsional spring 14 are fixedly connected with the baffle 13 and the helical blade 10 respectively. When the excavation device is started, the soil moving upward along the helical blade 10 pushes the baffle 13, compresses the torsional spring 14, so that the baffle 13 adheres to the surface of the helical blade 10. When the excavation device stops, the compressed torsional spring 14 returns to the original position, drives the baffle 13 to flip upward and stand up, blocks the sliding soil, and at the same time prevents the baffle 13 from flipping excessively and losing effect.

[0025] Preferably, the shaft 7 is provided with a limiting column 15, which is used to prevent the baffle 13 from opening excessively. When the soil slides downward along the surface of the helical blade 10, the baffle 13 flips upward and opens, and after flipping to a certain angle, it is blocked by the limiting column 15, so that the baffle 13 does not flip too much when too much soil slides downward, and cannot play a role in blocking soil, and also can avoid damaging the torsional spring 14.

[0026] Preferably, the spiral blade 10 is provided with a groove 12, the size and position of which are adapted to the baffle 13. When the excavating device is normally started, the upwardly pushed soil by the spiral blade 10 overturns the baffle 13 downwardly and makes the baffle 13 adhere to the spiral blade 10 until the baffle 13 overturns into the groove 12, the upper surface of the spiral blade 10 forms a smooth inclined curved surface, which constitutes an entirety, and is beneficial to the soil being discharged upwardly along the surface of the spiral blade 10.

[0027] Preferably, the shaft center direction of the pin shaft is arranged along the width direction of the spiral blade 10, the length of the pin shaft is consistent with the width of the spiral blade 10, the shape of the side edge of the baffle 13 away from the rotating shaft 7 is consistent with the shape of the outer side edge of the spiral blade 10, and the side edge of the baffle 13 close to the rotating shaft 7 is perpendicular to the pin shaft. The shape of the side edge of the baffle 13 away from the rotating shaft 7 is consistent with the shape of the outer side edge of the spiral blade 10, so that when the baffle 13 adheres to the spiral blade 10, the edge of the spiral blade 10 in contact with the soil is smooth without protrusions, which will not affect the normal rotation of the spiral blade 10. The length of the pin shaft is consistent with the width of the spiral blade 10, so that the baffle 13 completely blocks the soil sliding in the width direction. The side edge of the baffle 13 close to the rotating shaft 7 is perpendicular to the pin shaft, so that the side edge of the baffle 13 close to the rotating shaft 7 will not be hindered by the surface of the rotating shaft 7 during the overturning process, and will not affect the overturning effect of the baffle 13.

[0028] Preferably, the driving device comprises a cylinder 3, the cylinder 3 is installed on the support plate 2, the piston rod of the cylinder 3 penetrates through the support plate 2 and is in sliding connection with the support plate 2, the end of the piston rod away from the cylinder 3 is fixedly connected with a movable plate 5, the lower surface of the support plate 2 is fixedly connected with a limiting rod 4, the limiting rod 4 penetrates through the movable plate 5 and is in sliding connection with the movable plate 5, the lower surface of the movable plate 5 is installed with a motor 6, and the output shaft of the motor 6 is fixedly connected with the rotating shaft 7. The cylinder 3 pushes the movable plate 5 to move up and down, so that the motor 6 moves up and down, the motor 6 drives the rotating shaft 7 to rotate, so that the drill bit 11 on the rotating shaft 7 and the spiral blade 10 move up and down and rotate to realize the excavation of the soil, and the soil is discharged out of the pit in a spiral manner.

[0029] Embodiment two

[0030] Referring to the drawings Figure 4 and Figure 5The difference from the embodiment one is that the reset mechanism is a tension spring reset mechanism, the tension spring reset mechanism comprises a sleeve 17, a sliding rod 18 is slidably connected in the sleeve 17, a spring 19 is arranged in the sleeve 17, and the two ends of the spring 19 are fixedly connected with the sleeve 17 and the sliding rod 18 respectively, a protruding cross rod 16 is arranged on the rotating shaft 7, one end of the sleeve 17 away from the sliding rod 18 is rotationally connected with the cross rod 16, and the other end of the sliding rod 18 away from the sleeve 17 is rotationally connected with the baffle 13. When the baffle 13 is attached to the spiral blade 10, the spring 19 is in a tension state, after the excavating device is stopped, without the pushing force of the soil, the spring 19 pulls the baffle 13 to return to the original position to block the sliding soil, the axis of the tension spring mechanism is perpendicular to the axis of the pin shaft, and the direction of rotation of the baffle 13 is always adapted to the tension or compression of the tension spring mechanism. Compared with the embodiment one, the spring 19 is arranged in the sleeve 17, so that the spring 19 is prevented from directly contacting the humid soil and being corroded, and the service life of the reset mechanism is prolonged.

[0031] Working principle: in use, the movable plate 5 is pushed downward by the air cylinder 3, and the motor 6 is started, so that the rotating shaft 7 starts to rotate, the drill bit 11 starts to crush the soil and slowly penetrates into the ground under the downward pressure, the spiral blade 10 on the rotating shaft 7 rotates, the soil starts to move upward along the surface of the spiral blade 10, the baffle 13 is pushed to flip to attach to the surface of the spiral blade 10, the soil moves upward along the surface of the spiral blade 10 and is thrown out, after reaching the appropriate depth, the motor 6 is turned off, the rotating shaft 7 stops rotating, and the movable plate 5 is moved upward by the air cylinder 3, so that the spiral blade 10 stops rotating and moves upward, at this time, the soil not thrown out on the spiral blade 10 or the soil falling from the pit wall slides downward along the surface of the spiral blade 10, the baffle 13 is not pressed by the soil, and under the action of the reset mechanism, the baffle 13 flips upward to form a certain angle with the spiral blade 10, so as to block the downward sliding soil, when the excavating device is moved to another position to be excavated, the same operation is continued, when the spiral blade 10 is still rotating on the ground, the baffle 13 blocks the soil thrown out naturally without the obstruction of the pit wall, so that the soil does not need to be manually cleaned separately, and the operation is efficient and convenient.

[0032] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A soil excavation device for fruit tree planting, comprising a frame, the frame comprising a support plate (2) and a support column (8), the support column (8) being fixedly installed on the bottom edge of the support plate (2), a push rod (1) being provided on one side edge of the support plate (2), a caster wheel (9) being connected to the bottom of the support column (8), a drive device being installed on the support plate (2), the output end of the drive device being connected to a rotating shaft (7), the drive device being used to drive the rotating shaft (7) to rotate and move downward, a spiral blade (10) being fixedly connected to the rotating shaft (7), and a drill bit (11) being connected to the end of the rotating shaft (7) away from the motor (6), characterized in that: The spiral blade (10) is provided with a baffle (13) on the upper surface of the end close to the drill bit (11), the baffle (13) is rotatably connected with the spiral blade (10) through a pin shaft, and the baffle (13) is provided with a reset mechanism for driving the baffle (13) to return to the original position to intercept the soil sliding along the surface of the spiral blade (10).

2. A fruit tree planting soil excavating device according to claim 1, characterized in that: The reset mechanism is a torsional spring reset mechanism, the torsional spring reset mechanism comprises a torsional spring (14), the torsional spring (14) is sleeved on the pin shaft, and the two arms of the torsional spring (14) are fixedly connected with the baffle (13) and the spiral blade (10) respectively.

3. A fruit tree planting soil excavating device according to claim 2, characterized in that: The rotating shaft (7) is provided with a limiting column (15) for limiting the baffle (13) from being excessively opened to protect the torsional spring (14).

4. The fruit tree planting soil excavating device according to claim 1, characterized in that: The reset mechanism is a tension spring reset mechanism, the tension spring reset mechanism comprises a sleeve (17), a sliding rod (18) is slidably connected in the sleeve (17), a spring (19) is arranged in the sleeve (17), and two ends of the spring (19) are fixedly connected with the sleeve (17) and the sliding rod (18) respectively.

5. A fruit tree planting soil excavating device according to claim 3 or 4, characterized in that: The rotating shaft (7) is provided with a convex cross bar (16), one end of the sleeve (17) away from the sliding rod (18) is rotatably connected with the cross bar (16), and one end of the sliding rod (18) away from the sleeve (17) is rotatably connected with the baffle (13).

6. A fruit tree planting soil excavating device according to claim 3 or 4, characterized in that: The spiral blade (10) is provided with a groove (12), and the size and position of the groove (12) are matched with those of the baffle (13).

7. The fruit tree planting soil excavating device according to claim 1, characterized in that: The shaft center direction of the pin shaft is arranged along the width direction of the spiral blade (10), the length of the pin shaft is consistent with the width of the spiral blade (10), the shape of the side edge of the baffle (13) away from the rotating shaft (7) is consistent with the shape of the outer side edge of the spiral blade (10), and the side edge of the baffle (13) close to the rotating shaft (7) is perpendicular to the pin shaft. The driving device comprises a cylinder (3), the cylinder (3) is installed on the supporting plate (2), a piston rod of the cylinder (3) penetrates through the supporting plate (2) and is slidably connected with the supporting plate (2), one end of the piston rod away from the cylinder (3) is fixedly connected with a movable plate (5), the lower surface of the supporting plate (2) is fixedly connected with a limiting rod (4), the limiting rod (4) penetrates through the movable plate (5) and is slidably connected with the movable plate (5), and the lower surface of the movable plate (5) is installed with a motor (6), and the output shaft of the motor (6) is fixedly connected with the rotating shaft (7).

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