Nursery stock planting pit digging device

Abstract

The utility model discloses a nursery stock planting pit digging device, which relates to the technical field of nursery stock planting and comprises a shovel plate, a force application rod is fixed at the top of the shovel plate, the top end of the force application rod is in threaded connection with a measuring rod, an annular columnar recess is arranged on the surface of the force application rod, and threaded teeth are arranged on the surface of the annular columnar recess. The surface of the annular columnar recess is in threaded connection with a positioning nut, and the surface of the annular columnar recess movably penetrates through the bearing and is connected with a steering limiting structure. The trimming shovel is connected to the surface of the force application rod, so that after the planting pit is excavated, the trimming shovel can be used for leveling and trimming the inner wall of the planting pit, and the condition that the root system is split, bent or upwarped due to the fact that the bottom area of the planting pit is smaller than the opening area is avoided; the risk that normal growth of the seedlings is affected due to nonstandard shapes of the planting pits can be effectively reduced, and seedling survival is promoted.

Description

Technical Field

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

[0002] For seedling planting, the quality of the planting pit has a great impact on the planting quality and the future growth status of the seedlings. Therefore, the specifications of the pit must be strictly required. When digging the planting pit, a circle must be drawn with the specified hole diameter, and the pit must be dug downward along the edge of the circle. The topsoil and subsoil must be placed separately according to unified regulations, and the hole wall must be continuously straightened to the specified depth, so that the upper edge of the hole is vertical to the bottom edge and the size is consistent.

[0003] However, existing pit digging tools are usually shovel-shaped structures with a certain curvature, which can easily dig the pit into a cone or pot-bottom shape with a larger top and a smaller bottom, which can easily cause the roots to split, curl or warp when planting, causing the roots to be unable to stretch and affecting the growth of the tree. To this end, we propose a seedling planting pit digging device that can ensure the verticality and flatness of the pit wall. Utility Model Content

[0004] The utility model aims to provide a seedling planting pit digging device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seedling planting pit digging device, including a shovel plate, the shovel plate is used to dig the planting pit, a force rod is fixed on the top of the shovel plate, the top of the force rod is threadedly connected with a measuring rod, the measuring rod can not only measure the depth of the pit but also serve as the force end of the force rod, the surface of the force rod is provided with an annular columnar depression, the surface of the annular columnar depression is provided with threaded teeth, the surface of the annular columnar depression is threadedly connected with a positioning nut, the surface of the annular columnar depression is movably connected with a steering limit structure through the bearing, and the steering limit structure The structure rotates around the center line of the force applying rod, and the positioning nut is used to lock the connection angle of the steering limiting structure. A moving rod is penetrated inside the steering limiting structure, and a trimming shovel is welded to the lower end of the moving rod. The moving rod pulls the trimming shovel to move in the vertical direction, and the trimming shovel trims the inner wall of the excavated planting pit. A telescopic spring is fixedly connected inside the steering limiting structure, and the top of the telescopic spring and the bottom of the moving rod are respectively fixed to the bottom of the sliding ring. The sliding ring serves as a limiting structure of the moving rod, and maintains and limits the moving path of the moving rod by sliding along the inner wall of the slide.

[0006] As a further solution of the utility model: the shovel plate is a curved steel plate with a chamfered surface at the lower end, and the concave surface of the shovel plate is welded or integrally formed with a crushing edge, and the side of the crushing edge is formed with a crushing slope, which can crush the soil blocks in the process of digging the planting pit with the shovel plate, thereby avoiding the compaction of the soil after backfilling.

[0007] As a further solution of the utility model: the surface of the measuring rod is engraved with centimeter scale lines, the measuring rod is a T-shaped rod, and the measuring rod can measure the depth of the planting pit, so as to improve the accuracy of the planting pit size.

[0008] As a further solution of the utility model: a strip level is welded on the surface of the force application rod, and the strip level can provide a trimming direction reference for the trimming shovel when trimming the inner wall of the planting pit.

[0009] As a further solution of the utility model: the steering limit structure includes a steering tube and a limit tube, one end of the steering tube is welded and fixed to the side of the limit tube, a slide is welded on the side of the limit tube, the length of the slide is less than the length of the limit tube, and the slide limits the sliding ring to maintain the moving path of the moving rod.

[0010] As a further solution of the utility model: the annular columnar depression is symmetrically opened with respect to the bisecting plane of the force applying rod, and the surfaces of the two annular columnar depressions are respectively connected to the limit tube through the steering tube, and the symmetrical annular columnar depressions can improve the stability of the limit tube connection by increasing the number of connections of the steering tube.

[0011] As a further solution of the utility model: the two ends of the sliding ring are respectively tangent to the slideway, a handle is welded on the top of the sliding ring, and the sliding ring is a semicircular ring, which serves as a limiting structure for the movement of the moving rod.

[0012] As a further solution of the utility model: the trimming shovel is a straight steel plate, and the surface of the force rod is movably connected with a protective cover adapted for the trimming shovel, and the protective cover can store the trimming shovel to prevent the trimming shovel from accidentally injuring people.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model connects a trimming shovel to the surface of the force-applying rod. When the planting pit is excavated, the inner wall of the planting pit can be leveled by the trimming shovel to avoid the root system from splitting, curling or warping when the plant is stepped on due to the bottom area of ​​the planting pit being smaller than the opening area. This can effectively reduce the risk of affecting the normal growth of seedlings due to the irregular shape of the planting pit, and is beneficial to promoting the survival of seedlings.

[0015] 2. The utility model welds a crushing edge on the concave surface of the shovel plate, and the side of the crushing edge forms a crushing slope, which can crush the soil blocks in the process of digging the planting pit with the shovel plate to avoid the compaction of the soil after backfilling. By welding a sliding ring on the top of the moving rod, the sliding ring can serve as a limiting structure for the movement of the moving rod to maintain the moving path of the moving rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0017] Figure 2 For this utility model Figure 1 A magnified view of middle;

[0018] Figure 3 It is a side view of the utility model;

[0019] Figure 4 This is a structural diagram of the utility model from the back side.

[0020] In the figure: 1. Shovel plate; 2. Crushing edge; 3. Force rod; 4. Strip level; 5. Measuring rod; 6. Centimeter scale line; 7. Annular columnar depression; 8. Positioning nut; 9. Steering tube; 10. Limiting tube; 11. Slide; 12. Moving rod; 13. Sliding ring; 14. Handle; 15. Telescopic spring; 16. Dressing shovel; 17. Protective cover. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 4 The utility model provides a technical solution: a seedling planting pit digging device, including a shovel plate 1, the shovel plate 1 is used to dig a planting pit, a force rod 3 is fixed on the top of the shovel plate 1, and a measuring rod 5 is threadedly connected to the top of the force rod 3. In addition to being able to measure the depth of the pit, the measuring rod 5 can also serve as the force end of the force rod 3. An annular columnar recess 7 is provided on the surface of the force rod 3, and thread teeth are provided on the surface of the annular columnar recess 7. A positioning nut 8 is threadedly connected to the surface of the annular columnar recess 7. A steering limiting structure is movably connected to the surface of the annular columnar recess 7 through the bearing. The steering limiting structure includes a steering tube 9 and a limiting tube 10. One end of the steering tube 9 is welded and fixed to the side of the limiting tube 10. A slideway 11 is welded to the side of the limiting tube 10. The length of the slideway 11 is less than the length of the limiting tube 10. The slideway 11 limits the sliding ring 13, thereby maintaining the moving path of the moving rod 12.

[0023] The steering limiting structure rotates around the center line of the force applying rod 3, and the positioning nut 8 is used to lock the connection angle of the steering limiting structure. The internal movement of the steering limiting structure is penetrated by a moving rod 12, and a trimming shovel 16 is welded to the lower end of the moving rod 12. The moving rod 12 pulls the trimming shovel 16 to move in the vertical direction, and the trimming shovel 16 trims the inner wall of the excavated planting pit. The steering limiting structure is fixedly connected to the inside with a telescopic spring 15, and the top of the telescopic spring 15 and the bottom of the moving rod 12 are respectively fixed to the bottom of the sliding ring 13. The sliding ring 13 serves as a limiting structure for the moving rod 12, and maintains and limits the moving path of the moving rod 12 by sliding along the inner wall of the slide 11.

[0024] Preferably, Figure 1 As shown, the shovel plate 1 is a curved steel plate with a chamfered surface at the lower end. The concave surface of the shovel plate 1 is welded or integrally formed with a crushing edge 2, and the side of the crushing edge 2 is formed with a crushing slope, which can crush the soil blocks during the process of digging the planting pit with the shovel plate 1, thereby avoiding the compaction of the soil after backfilling.

[0025] Preferably, Figure 1 or Figure 4 As shown, the surface of the measuring rod 5 is engraved with centimeter scale lines 6, and the measuring rod 5 is a T-shaped rod. The measuring rod 5 can measure the depth of the planting pit, so as to improve the accuracy of the planting pit size.

[0026] Preferably, Figure 1 As shown, a strip level 4 is welded on the surface of the force application rod 3, and the strip level 4 can provide a trimming direction reference for the trimming shovel 16 when trimming the inner wall of the planting pit.

[0027] Preferably, Figure 3 As shown, the annular columnar recesses 7 are symmetrically opened with respect to the bisecting plane of the force applying rod 3, and the surfaces of the two annular columnar recesses 7 are respectively connected to the limiting tube 10 through the steering tube 9. The symmetrical annular columnar recesses 7 can improve the stability of the connection of the limiting tube 10 by increasing the number of connections of the steering tube 9.

[0028] Preferably, Figure 3 As shown, the two ends of the sliding ring 13 are tangential to the slideway 11 respectively, and a handle 14 is welded on the top of the sliding ring 13. The sliding ring 13 is a semicircular ring and serves as a limiting structure for the movement of the moving rod 12.

[0029] Preferably, Figure 4 As shown, the trimming shovel 16 is a straight steel plate, and a protective cover 17 adapted for the trimming shovel 16 is movably connected to the surface of the force application rod 3. The protective cover 17 can store the trimming shovel 16 to prevent the trimming shovel 16 from accidentally injuring people.

[0030] Working principle: When in use, the planting pit is excavated through the shovel plate 1. During the excavation process, the depth of the planting pit can be measured by the centimeter scale line 6 on the surface of the measuring rod 5. The measuring rod 5 is connected to the top of the force rod 3 and can be used as the hand grip of the force rod 3 to facilitate the application of digging pressure on the force rod 3. After the planting pit is initially excavated and formed, the force rod 3 is kept in a vertical direction, and the vertical placement of the force rod 3 is maintained by observing the strip level 4. At this time, the shovel surface of the trimming shovel 16 is perpendicular to the bottom surface of the planting pit, and through The downward pressing handle 14 applies downward pressure to the moving rod 12, pulling the trimming shovel 16 downward to cut the excess soil on the inner wall of the planting pit to avoid the bottom area of ​​the planting pit being smaller than the opening area, thereby effectively avoiding the root system from splitting, curling or warping after the soil is compacted. Loosen the positioning nut 8, the steering tube 9 and the protective cover 17 can rotate around the center line of the force rod 3, thereby adjusting the protective cover 17 and the trimming shovel 16 to the side position of the shovel plate 1 to avoid affecting the shovel plate 1 in digging the planting pit.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although 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 of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seedling planting pit digging device, comprising a shovel plate (1), characterized in that: A force rod (3) is fixed on the top of the shovel plate (1), a measuring rod (5) is threadedly connected to the top of the force rod (3), an annular columnar depression (7) is provided on the surface of the force rod (3), a positioning nut (8) is threadedly connected to the surface of the annular columnar depression (7), a steering limit structure is movably connected to the surface of the annular columnar depression (7) and the bearing, a moving rod (12) is movably connected to the inside of the steering limit structure, a trimming shovel (16) is welded to the lower end of the moving rod (12), a telescopic spring (15) is fixedly connected to the inside of the steering limit structure, and the top of the telescopic spring (15) and the bottom of the moving rod (12) are respectively fixed to the bottom of the sliding ring (13).

2. A seedling planting pit digging device according to claim 1, characterized in that: The shovel plate (1) is a curved steel plate with a chamfered surface at the lower end. A crushing edge (2) is welded or integrally formed on the concave surface of the shovel plate (1), and a crushing inclined surface is formed on the side surface of the crushing edge (2).

3. A seedling planting pit digging device according to claim 1, characterized in that: The surface of the measuring rod (5) is engraved with centimeter scale lines (6), and the measuring rod (5) is a T-bar.

4. The seedling planting pit digging device according to claim 1, characterized in that: A strip level (4) is welded on the surface of the force application rod (3).

5. The seedling planting pit digging device according to claim 1, characterized in that: The steering limiting structure comprises a steering tube (9) and a limiting tube (10), one end of the steering tube (9) is welded and fixed to the side of the limiting tube (10), a slideway (11) is welded to the side of the limiting tube (10), and the length of the slideway (11) is less than the length of the limiting tube (10).

6. A seedling planting pit digging device according to claim 5, characterized in that: The annular columnar recess (7) is symmetrically formed with respect to a bisecting plane of the force application rod (3), and the surfaces of the two annular columnar recesses (7) are respectively connected to the limiting tube (10) via a steering tube (9).

7. The seedling planting pit digging device according to claim 1, characterized in that: The two ends of the sliding ring (13) are respectively tangential to the slideway (11), and a handle (14) is welded to the top of the sliding ring (13).

8. The seedling planting pit digging device according to claim 1, characterized in that: The trimming shovel (16) is a straight steel plate, and the surface of the force application rod (3) is movably connected through a protective cover (17) adapted to the trimming shovel (16).

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