Aperture-adjustable planting perforating device

Abstract

The utility model discloses a planting perforating device with adjustable aperture, which relates to the technical field of planting perforating devices, and comprises a device body, a threaded rod and a bottom plate, the outer wall of the bottom end of the device body is provided with a locking sleeve, the inner wall of the device body is movably provided with the threaded rod, the bottom end of a lifting rod is connected with a mounting rod, and the bottom end of the lifting rod is connected with a lifting rod. Expansion rods are evenly and movably installed on the outer wall of the lower portion of the installation rod, and the bottom end of the installation rod is connected with a bottom plate. The adjusting knob is rotated to enable the second bevel gear to rotate, the second bevel gear is meshed with the first bevel gear, so that the first bevel gear drives the threaded rod to rotate at the same time, the lifting rod can move upwards or downwards through threaded fit, and the lifting rod drives the mounting rod to move upwards or downwards at the same time. The installation rod descends to enable the expansion rod to inwards reduce the angle, the installation rod upwards enables the expansion rod to outwards expand the angle, and the problem that the hole diameter cannot be adjusted is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of planting hole-drilling devices, specifically a planting hole-drilling device with adjustable hole diameter. Background Technology

[0002] A planting hole-drilling device is a tool specifically designed for seed planting and soil treatment. Its principle is to use force to compress the soil to form holes, then place the seeds directly into the holes for rapid planting and improved planting efficiency. The drilling device penetrates the soil through a drill bit. In some areas, hard objects such as stones can easily cause wear and deformation of the drill bit, affecting subsequent drilling operations. Currently, the drill bit is generally fixedly connected to the drilling device; if the drill bit is damaged, the entire device becomes unusable, resulting in losses. Furthermore, the fixed drilling diameter leads to poor applicability, as the drilling diameter cannot be adjusted as needed, causing inconvenience. Therefore, in light of these issues, this case was developed through in-depth research. Utility Model Content

[0003] The purpose of this utility model is to provide an adjustable aperture planting hole device to solve the problem mentioned in the background art that the existing adjustable aperture planting hole device does not have adjustable aperture and is easy to disassemble and replace.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-diameter planting drilling device, comprising a device body, a threaded rod, and a base plate. A handle is installed at the top of the device body, a positioning block is installed on the inner side of the bottom of the device body, and a drill bit is connected to the bottom of the positioning block. A locking sleeve is installed on the outer wall of the bottom of the device body, a threaded rod is movably installed on the inner wall of the device body, and a lifting rod is installed on the outer wall below the threaded rod. An installation rod is connected to the bottom of the lifting rod, and an expansion rod is movably installed uniformly on the outer wall below the installation rod. The bottom of the installation rod is connected to the base plate.

[0005] Preferably, a return spring is installed on both outer walls of the bottom end of the device body, and a locking rod is installed on the inner side of each return spring. The outer wall of each positioning block is provided with a locking groove that cooperates with the locking rod.

[0006] Preferably, the inner wall above the locking sleeve is provided with an internal thread, and the outer wall at the bottom of the device body is provided with an external thread, forming a threaded connection structure between the locking sleeve and the device body.

[0007] Preferably, the inner wall of the lifting rod is provided with internal threads, and a threaded connection structure is formed between the lifting rod and the threaded rod.

[0008] Preferably, the inner walls on both sides of the device body are provided with internal threads, and the outer walls on both sides of the lifting rod are movably connected to the limiting groove through limiting blocks.

[0009] Preferably, an adjustment knob is installed on one side of the outer wall above the device body, and a second bevel tooth is connected to one side of the adjustment knob. A first bevel tooth is engaged with the outer wall of the threaded rod above the second bevel tooth.

[0010] Preferably, the outer wall below the device body is uniformly provided with through holes, and the inner wall of each through hole is equipped with a rotating shaft. The outer wall of each expansion rod is provided with a limiting hole, and the rotating shaft passes through the inner side of the limiting hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model provides a locking sleeve, a return spring, and a locking groove. By rotating the locking sleeve and engaging the threaded connection, the locking sleeve moves upward. After the return spring disengages from the inner side of the locking sleeve, it returns to its original position, causing the locking rod to move away from the locking groove. This facilitates the disassembly and replacement of the drill bit and solves the problem of inconvenient disassembly and replacement.

[0013] This utility model provides an adjustment knob, a mounting rod, and a lifting rod. Rotating the adjustment knob causes the second bevel gear to rotate, which in turn meshes with the first bevel gear, causing the first bevel gear to drive the threaded rod to rotate simultaneously. The threaded engagement allows the lifting rod to move up or down. The lifting rod, in turn, drives the mounting rod to move up or down simultaneously. When the mounting rod descends, the expansion rod narrows inward, and when the mounting rod moves upward, the expansion rod widens outward, thus solving the problem of the non-adjustable bore diameter. Attached Figure Description

[0014] Figure 1 This is a cross-sectional structural diagram of the device body of this utility model;

[0015] Figure 2 This is a top view of the mounting rod structure of this utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the lifting rod of this utility model;

[0017] Figure 4 This is a cross-sectional view of the locking sleeve of this utility model;

[0018] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Locking sleeve; 2. Lifting rod; 3. Device body; 4. First bevel gear; 5. Handle; 6. Adjustment knob; 7. Second bevel gear; 8. Threaded rod; 9. Drill bit; 10. Mounting rod; 11. Expansion rod; 12. Locking rod; 13. Return spring; 14. Locking groove; 15. Positioning block; 16. Through hole; 17. Base plate; 18. Rotating shaft; 19. Limiting hole. Detailed Implementation

[0020] 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.

[0021] Example 1: Please refer to Figures 1-5 An adjustable aperture planting drilling device includes a device body 3, a threaded rod 8 and a base plate 17. A handle 5 is installed at the top of the device body 3. A positioning block 15 is installed on the inner side of the bottom of the device body 3, and a drill bit 9 is connected to the bottom of the positioning block 15. A locking sleeve 1 is installed on the outer wall of the bottom of the device body 3. The threaded rod 8 is movably installed on the inner wall of the device body 3, and a lifting rod 2 is installed on the outer wall below the threaded rod 8. An installation rod 10 is connected to the bottom of the lifting rod 2, and an expansion rod 11 is evenly and movably installed on the outer wall below the installation rod 10. The bottom of the installation rod 10 is connected to the base plate 17.

[0022] Both sides of the bottom of the device body 3 are equipped with a return spring 13, and a locking rod 12 is installed on the inner side of the return spring 13. The outer wall of the positioning block 15 is provided with a locking groove 14 that cooperates with the locking rod 12.

[0023] The inner wall of the upper part of the locking sleeve 1 is provided with an internal thread, and the outer wall of the bottom end of the device body 3 is provided with an external thread, forming a threaded connection structure between the locking sleeve 1 and the device body 3.

[0024] Specifically, such as Figure 1 and Figure 4 As shown, when using this structure, by rotating the locking sleeve 1, the threaded engagement causes the locking sleeve 1 to move upward. After the return spring 13 disengages from the inner side of the locking sleeve 1, the return spring 13 resets, causing the locking rod 12 to move away from the locking groove 14, which facilitates the disassembly and replacement of the drill bit 9.

[0025] Example 2: The inner wall of the lifting rod 2 is provided with internal threads, and a threaded connection structure is formed between the lifting rod 2 and the threaded rod 8;

[0026] The inner walls on both sides of the device body 3 are provided with internal threads, and the outer walls on both sides of the lifting rod 2 are movably connected to the limiting groove through the limiting block;

[0027] An adjustment knob 6 is installed on one side of the outer wall above the device body 3, and a second bevel tooth 7 is connected to one side of the adjustment knob 6. A first bevel tooth 4 is engaged with the outer wall of the threaded rod 8 above the second bevel tooth 7.

[0028] The outer wall below the device body 3 is uniformly provided with through holes 16, and the inner wall of each through hole 16 is equipped with a rotating shaft 18. The outer wall of each expansion rod 11 is provided with a limiting hole 19, and the rotating shaft 18 passes through the inner side of the limiting hole 19.

[0029] Specifically, such as Figure 1 , Figure 2 and Figure 5 As shown, when using this structure, rotating the adjustment knob 6 causes the second bevel tooth 7 to rotate. The second bevel tooth 7 meshes with the first bevel tooth 4, causing the first bevel tooth 4 to drive the threaded rod 8 to rotate simultaneously. The threaded engagement allows the lifting rod 2 to move up or down. The lifting rod 2 drives the mounting rod 10 to move up or down simultaneously. When the mounting rod 10 descends, it causes the expansion rod 11 to shrink inward at a smaller angle. When the mounting rod 10 ascends, it causes the expansion rod 11 to expand outward at a larger angle, making the drilling diameter adjustable.

[0030] Working principle: When using this device, the user first holds the handle 5 to position the drill bit 9 at the planting position, and then presses down on the soil to make holes for planting;

[0031] Implementation steps for the first innovation point:

[0032] Step 1: Rotate the adjustment knob 6 to make the second bevel gear 7 rotate. The second bevel gear 7 meshes with the first bevel gear 4, causing the first bevel gear 4 to drive the threaded rod 8 to rotate simultaneously. The threaded engagement allows the lifting rod 2 to move up or down.

[0033] Step 2: The lifting rod 2 drives the mounting rod 10 to move up or down simultaneously. When the mounting rod 10 descends, it causes the expansion rod 11 to shrink inward at a smaller angle. When the mounting rod 10 rises, it causes the expansion rod 11 to expand outward at a larger angle. The drilling diameter can be reduced or expanded.

[0034] Implementation steps for the second innovation point:

[0035] By rotating the locking sleeve 1, the threaded engagement causes the locking sleeve 1 to move upward. After the return spring 13 disengages from the inner side of the locking sleeve 1, the return spring 13 returns to its original position, causing the locking rod 12 to move away from the locking groove 14. Then the drill bit 9 can be removed for replacement.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable aperture planting drilling device, comprising a device body (3), a threaded rod (8), and a base plate (17), characterized in that: A handle (5) is installed at the top of the device body (3). A positioning block (15) is installed on the inner side of the bottom of the device body (3), and a drill bit (9) is connected to the bottom of the positioning block (15). A locking sleeve (1) is installed on the outer wall of the bottom of the device body (3). A threaded rod (8) is movably installed on the inner wall of the device body (3), and a lifting rod (2) is installed on the outer wall below the threaded rod (8). An installation rod (10) is connected to the bottom of the lifting rod (2), and an expansion rod (11) is evenly and movably installed on the outer wall below the installation rod (10). A base plate (17) is connected to the bottom of the installation rod (10).

2. The planting hole-drilling device with adjustable aperture according to claim 1, characterized in that: The device body (3) has a return spring (13) installed on both sides of the bottom outer wall, and a locking rod (12) is installed on the inner side of the return spring (13). The positioning block (15) has a locking groove (14) that cooperates with the locking rod (12) on its outer wall.

3. The planting hole-drilling device with adjustable aperture according to claim 1, characterized in that: The inner wall above the locking sleeve (1) is provided with an internal thread, and the outer wall at the bottom of the device body (3) is provided with an external thread, forming a threaded connection structure between the locking sleeve (1) and the device body (3).

4. The planting hole-drilling device with adjustable aperture according to claim 1, characterized in that: The inner wall of the lifting rod (2) is provided with internal threads, and a threaded connection structure is formed between the lifting rod (2) and the threaded rod (8).

5. The planting hole-drilling device with adjustable aperture according to claim 1, characterized in that: The inner walls on both sides of the device body (3) are provided with internal threads, and the outer walls on both sides of the lifting rod (2) are movably connected to the limiting groove through the limiting block.

6. The planting hole-drilling device with adjustable aperture according to claim 1, characterized in that: An adjustment knob (6) is installed on one side of the outer wall above the device body (3), and a second bevel tooth (7) is connected to one side of the adjustment knob (6). A first bevel tooth (4) is engaged with the outer wall of the threaded rod (8) above the second bevel tooth (7).

7. The planting hole-drilling device with adjustable aperture according to claim 1, characterized in that: The outer wall of the device body (3) is uniformly provided with through holes (16), and the inner wall of each through hole (16) is equipped with a rotating shaft (18). The outer wall of each expansion rod (11) is provided with a limiting hole (19), and the rotating shaft (18) passes through the inner side of the limiting hole (19).

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