A hole digger for under-forest cultivation of traditional Chinese medicinal materials

Abstract

The utility model belongs to the field of traditional Chinese medicinal material cultivation technology, concretely relates to a kind of under-forest traditional Chinese medicinal material cultivation hole digger, including drill rod, the top of drill rod is provided with quick clamping device, quick clamping device includes quick clamping sleeve, quick clamping rod, control sleeve, movable plate, movable slot, quick clamping slot and quick clamping frame, movable plate is connected in quick clamping frame one end, movable slot is opened in control sleeve in the structure of variable diameter, quick clamping slot is opened in quick clamping rod outside, quick clamping sleeve outside is equipped with limiting mechanism, limiting mechanism includes reset slot, fixed block, limiting plate, vertical plate, clamping frame, clamping sleeve, reset plate, reset block, clamping slot, reset spring, annular groove and clamping rod, reset spring is connected with reset block and fixed block, reset slot is opened on reset plate, three limiting plates are connected in vertical plate one side, clamping slot is opened in annular groove both ends, clamping rod is installed in clamping frame, the utility model has realized automatic hole digging, and has guaranteed the installation stability of drill rod part while realizing the convenient replacement of drill rod part.

Description

Technical Field

[0001] This utility model belongs to the field of Chinese medicinal herb cultivation technology, specifically relating to a pit-digging device for understory Chinese medicinal herb cultivation. Background Technology

[0002] Against the backdrop of the rapid development of large-scale cultivation of traditional Chinese medicinal herbs under modern forest cover, efficient and convenient hole-drilling equipment plays a crucial role in improving planting efficiency and reducing labor intensity. However, existing hole-drilling devices for cultivating traditional Chinese medicinal herbs under forest cover have many technical defects that urgently need to be addressed. The primary problem is that the operation method is too primitive and outdated. Most hole-drilling devices still rely entirely on manual holding and pressing. This design exhibits obvious efficiency bottlenecks and ergonomic defects when facing the complex soil environment under forest cover: operators need to bend over or kneel for a long time to perform repetitive pressing actions, which not only results in extremely high labor intensity, leading to fatigue and chronic damage to the operator's back muscles, but also causes inconsistent hole depth and diameter due to unstable manual output, affecting the uniformity of subsequent planting specifications. In addition, the efficiency of purely manual hole-drilling is extremely low, significantly increasing planting costs and time cycles, seriously restricting the large-scale development and modernization of the traditional Chinese medicinal herb industry under forest cover, and bringing many adverse effects to planting enterprises, such as low production efficiency and rising labor costs.

[0003] Secondly, existing pit diggers have significant design flaws in the installation and disassembly of the drill rod. They typically require multiple specialized tools such as wrenches, screwdrivers, and Allen wrenches to complete the operation. In actual forest work environments, this design presents numerous practical difficulties: First, tools are inconvenient to carry during fieldwork. Operators often lack suitable tools and cannot promptly replace worn or damaged drill rods. The disassembly and assembly process is cumbersome and time-consuming, significantly reducing work efficiency and even posing a risk of tool loss. This design deficiency increases equipment maintenance costs and greatly reduces operational convenience, failing to meet the demands of modern large-scale, specialized cultivation of medicinal herbs in forests for tools to quickly adapt to different working conditions. This leads to numerous adverse effects for growers, including low work efficiency and difficult equipment maintenance.

[0004] Furthermore, while some manufacturers in the industry have solved the problem of tool-free replacement of drill rods through innovative designs, these improved designs still have significant shortcomings in structural strength and stability. Under the complex conditions of continuous vibration, rotational impact, and soil resistance encountered in actual forest operations, their stability is not high. Especially when encountering hard objects such as rocks and tree roots during pit digging, these simple structures are prone to loosening or even complete detachment due to instantaneous impact or continuous torque. With accumulated use, the drill rod may wobble, shift, or even detach during operation. When the drill rod unexpectedly detaches, it not only interrupts the work process and reduces work efficiency but may also cause damage or loss of the drill rod, increasing equipment maintenance and replacement costs. More seriously, the sudden detachment of the drill rod may pose a safety threat to operators, especially under high-speed rotation. This structural design deficiency severely affects the reliability and durability of the pit digger in practical applications, making it impossible for the equipment to work stably for extended periods under harsh conditions. This brings multiple adverse effects to the large-scale cultivation of medicinal herbs under forest cover, including low equipment reliability, significant safety hazards, and high maintenance costs.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a pit-digging device for cultivating Chinese medicinal herbs under forest cover, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A pit-digging device for cultivating medicinal herbs under forest cover includes:

[0009] A drill rod, the top of which is equipped with a quick-locking device;

[0010] The quick-card device includes a quick-card sleeve, a quick-card rod, a control sleeve, a movable plate, a movable groove, a quick-card slot, and a quick-card frame. The quick-card sleeve is detachably sleeved on the outside of the quick-card rod. The control sleeve is rotatably mounted on the outside of the quick-card sleeve. The movable plate is fixedly connected to one end of the quick-card frame. The outer wall of the movable plate fits against the inner wall of the movable groove. The movable groove has a variable diameter structure and is opened in the control sleeve. The quick-card slot is opened on the outside of the quick-card rod. One end of the quick-card frame is inserted into the quick-card slot. A limit mechanism is installed on the outside of the quick-card sleeve.

[0011] The limiting mechanism includes a reset groove, a fixing block, a limiting plate, a longitudinal plate, a locking frame, a locking sleeve, a reset plate, a reset block, a locking groove, a reset spring, an annular groove, and a locking rod. The reset spring is connected at both ends to the reset block and the fixing block, respectively. The reset groove is located on the reset plate. The fixing block is fixedly installed on the outside of the quick-release sleeve. The longitudinal plate is fixedly connected to one side of the locking sleeve. Three limiting plates are fixedly connected to one side of the longitudinal plate. The locking frame is fixedly installed on one side of the control sleeve. The locking sleeve is slidably installed on the outside of the quick-release sleeve. The reset plate is rotatably installed on the outside of the quick-release sleeve. The reset block is fixedly installed on one side of the reset plate. The locking groove is located at both ends of the annular groove, which is located on the outside of the quick-release sleeve. The depth of the locking groove is greater than the depth of the annular groove. The locking rod is slidably installed in the locking frame, with one end inserted into the locking groove. A pitting device is provided on the outside of the drill rod.

[0012] Furthermore, the hole-drilling device includes a lifting motor, a screw sleeve, a screw rod, a frame, a spiral plate, a connecting block, a connecting sleeve, a slide rod, a movable frame, and a drive motor. The lifting motor is detachably mounted on the top of the frame, the screw sleeve is detachably mounted on the movable frame, the screw rod is rotatably mounted on the inner side of the frame, and the top of the screw rod is connected to the output end of the lifting motor. The spiral plate is fixedly mounted on the outer side of the drill rod, the movable frame is movably mounted on the inner side of the frame, the drive motor is detachably mounted on the top of the movable frame, and the output end of the drive motor is connected to the top of the connecting sleeve. The connecting block is detachably inserted into the connecting sleeve and is fixedly mounted on the top of the drill rod. The slide rod is fixedly mounted on the inner side of the frame, and the movable frame is slidably connected to the slide rod. This structural design realizes the automated operation of the hole-drilling process. The lifting motor drives the screw rod to rotate, causing the movable frame to descend smoothly along the slide rod. The drive motor drives the drill rod and spiral plate to rotate and drill holes, greatly reducing the labor intensity of the operators and avoiding the bad posture of bending over and kneeling for a long time. At the same time, the stable output of the motor ensures the consistency of the hole depth and diameter, improving the uniformity of planting specifications.

[0013] Furthermore, the frame is equipped with casters at the bottom, a support rod is fixed at the bottom of the frame, and a handle is fixed at the top of the frame. This design facilitates flexible movement and positioning of the equipment. Operators only need to control the frame to move to the designated position by the handle and stabilize the equipment with the support rod before automatically digging holes, which significantly improves work efficiency.

[0014] Furthermore, a support spring is connected to one side of the locking sleeve, and a thrust bearing is detachably provided on one side of the reset plate. The other end of the support spring is connected to the thrust bearing. This structural design provides a reliable elastic reset function for the limiting mechanism. The cooperation between the support spring and the thrust bearing ensures the smooth movement of the locking sleeve during the unlocking and locking process, making the operation smoother and more reliable. At the same time, the application of the thrust bearing reduces frictional resistance and extends the service life of the components.

[0015] Furthermore, a sliding block is fixedly provided on the inner side of the retaining sleeve, and a sliding groove is provided on the outer side of the retaining sleeve. The sliding block slides in the sliding groove. This sliding guide structure ensures that the trajectory of the retaining sleeve is accurate and controllable during movement, prevents the retaining sleeve from deviating or rotating, and enhances the stability and reliability of the limiting mechanism.

[0016] Furthermore, a reset rod is connected to one side of the reset block, and a reset hole is provided in the fixed block. One end of the reset rod slides into the reset hole. This design provides precise guidance for the rotation of the reset plate through the sliding cooperation between the reset rod and the reset hole, ensuring that the reset plate and other components remain stable during rotation.

[0017] Furthermore, a push spring is movably sleeved on the outer side of the quick card holder, with both ends of the push spring connected to the movable plate and the quick card sleeve respectively. This elastic support structure ensures that the movable plate always remains in contact with the inner wall of the movable groove, making the quick card holder move smoothly and controllably during unlocking and locking.

[0018] Furthermore, a locking plate is connected to one end of the locking rod, and a connecting spring is movably sleeved on the outside of the locking rod. The two ends of the connecting spring are connected to the locking plate and the locking frame, respectively. This structural design enables the locking rod to have an automatic reset function. The elasticity of the connecting spring ensures that the locking rod can automatically return to its original position and be inserted into the locking groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) This utility model hole-drilling device, through the coordinated work of a lifting motor, screw sleeve, screw rod, frame, spiral plate, connecting block, connecting sleeve, slide rod, movable frame and drive motor, completely solves many shortcomings of traditional manual hole-drilling. The operator only needs to control the frame to move to the designated position by the handle, stabilize the equipment with the support rod, start the drive motor to drive the drill rod and spiral plate to rotate, and at the same time the lifting motor drives the screw rod to rotate. Through the threaded cooperation between the screw sleeve and the screw rod, the movable frame descends smoothly along the slide rod, realizing automated hole-drilling operation, greatly reducing the labor intensity of the operator, avoiding the bad posture of bending over and kneeling for a long time, and effectively preventing back muscle fatigue and chronic injury; at the same time, the stable output of the motor drive ensures the consistency of the depth and diameter of each hole, improving the uniformity of planting specifications; significantly improving hole-drilling efficiency, reducing planting costs and time cycle, and providing strong support for the large-scale development and modernization of the forest-based Chinese medicinal materials industry.

[0021] (2) This new type of quick-clamp device adopts a clever combination of quick-clamp sleeve, quick-clamp rod, control sleeve, movable plate, movable groove, quick-clamp slot and quick-clamp frame, which perfectly solves the technical problem of traditional drill rod replacement requiring professional tools. By simply rotating the control sleeve, the control sleeve drives the movable groove with internal variable diameter design to rotate, realizing the quick disassembly of the drill rod; at the same time, the push spring set on the outside of the quick-clamp frame provides appropriate elastic support to ensure that the movable plate always keeps in contact with the inner wall of the movable groove, making the operation process smoother and more reliable; in addition, the detachable insertion design of the connecting block and the connecting sleeve further improves the convenience of drill rod replacement. The entire disassembly and assembly process does not require any professional tools, which greatly reduces the burden of carrying tools during field operations, solves the risk of tool loss, shortens the disassembly and assembly time, and significantly improves the adaptability and working efficiency of the equipment under different soil conditions.

[0022] (3) The limiting mechanism, through the precise cooperation of multiple components such as the reset groove, fixing block, limiting plate, longitudinal plate, locking frame, locking sleeve, reset plate, reset block, locking groove, annular groove and locking rod, constructs a multi-safety locking system, which fundamentally solves the problem of insufficient stability of quick-release structure in complex working environment. When the device is locked, the inner wall of the locking sleeve limits the outer wall of the locking plate, so that the locking plate and locking rod cannot move outward. At the same time, the cooperation between the locking rod and the locking groove restricts the rotation of the locking frame and the control sleeve, preventing accidental unlocking. The clever cooperation between the longitudinal plate and the limiting plate supports and fixes the locking sleeve. Combined with the guide and limiting of the sliding block and the sliding groove, it ensures the locking. The sleeve maintains a stable position; in addition, the design of multiple sets of elastic reset mechanisms, such as the reset plate and reset block, thrust bearing and support spring, reset rod and reset hole, makes the limit unlocking and locking operations smoother and more reliable. In the locked state, multiple mechanical barriers are formed, which can firmly lock the drill rod even under the conditions of high-speed rotation of the equipment and strong vibration and impact caused by hard objects such as stones and tree roots. This effectively prevents the drill rod from loosening, shifting or falling off, greatly improves the reliability and durability of the equipment under harsh working conditions, eliminates the operation interruption, equipment damage and operator safety threats that may be caused by the accidental fall of the drill rod, and provides a stable and reliable technical guarantee for the large-scale cultivation of Chinese medicinal materials under forest. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the dispersed structure of the drill rod and movable frame of this utility model;

[0025] Figure 3 This is a schematic diagram of the fast-loading device and the limiting mechanism of this utility model;

[0026] Figure 4 A schematic diagram of the dispersed structure of the quick-clamping device and limiting mechanism of this utility model, excluding the quick-clamping rod portion;

[0027] Figure 5 This is a cross-sectional structural diagram of the fast-loading device and the limiting mechanism of this utility model.

[0028] Explanation of key figure labels:

[0029] 1. Drill pipe; 2. Quick-release sleeve; 3. Quick-release rod; 4. Control sleeve; 5. Movable plate; 6. Movable groove; 7. Quick-release groove; 8. Quick-release bracket; 9. Reset groove; 10. Fixing block; 11. Limiting plate; 12. Longitudinal plate; 13. Locking bracket; 14. Locking sleeve; 15. Reset plate; 16. Reset block; 17. Locking groove; 18. Annular groove; 19. Locking rod; 20. Lifting motor; 21. Screw sleeve; 22. 23. Screw; 24. Frame; 25. Spiral plate; 26. Connecting block; 27. Connecting sleeve; 28. Slide rod; 29. ​​Movable frame; 30. Drive motor; 31. Caster wheel; 32. Support rod; 33. Handle; 34. Support spring; 35. Thrust bearing; 36. Sliding block; 37. Sliding groove; 38. Reset rod; 39. Reset hole; 40. Push spring; 41. Locking plate; 50. Connecting spring; 61. Reset spring. Detailed Implementation

[0030] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0031] See appendix Figure 1-5A pit-drilling device for cultivating medicinal herbs under forest cover includes a drill rod 1. A quick-locking device is installed at the top of the drill rod 1. The quick-locking device includes a quick-lock sleeve 2, a quick-lock rod 3, a control sleeve 4, a movable plate 5, a movable groove 6, a quick-lock slot 7, and a quick-lock frame 8. The quick-lock sleeve 2 is detachably fitted onto the outside of the quick-lock rod 3. The control sleeve 4 is rotatably installed on the outside of the quick-lock sleeve 2. The movable plate 5 is fixedly connected to one end of the quick-lock frame 8. The outer wall of the movable plate 5 fits against the inner wall of the movable groove 6. The movable groove 6 has a variable diameter structure and is opened in the control sleeve 4. The quick-lock slot 7 is opened on the outside of the quick-lock rod 3. One end of the quick-lock frame 8 is inserted into the quick-lock slot 7. A limiting mechanism is installed on the outside of the quick-lock sleeve 2. The limiting mechanism includes a reset slot 9, a fixing block 10, a limiting plate 11, a longitudinal plate 12, a locking frame 13, a locking sleeve 14, a reset plate 15, a reset block 16, a locking groove 17, and a reset spring 5. 0. Annular groove 18 and locking rod 19, the two ends of the reset spring are respectively connected to the reset block and the fixed block, the reset groove 9 is opened on the reset plate 15, the fixed block 10 is fixedly installed on the outside of the quick-clamp sleeve 2, the longitudinal plate 12 is fixedly connected to one side of the locking sleeve 14, the three limiting plates 11 are fixedly connected to one side of the longitudinal plate 12, the locking frame 13 is fixedly installed on one side of the control sleeve 4, the locking sleeve 14 is slidably installed on the outside of the quick-clamp sleeve 2, the reset plate 15 is rotatably installed on the outside of the quick-clamp sleeve 2, the reset block 16 is fixedly installed on one side of the reset plate 15, the locking groove 17 is opened at both ends of the annular groove 18, the annular groove 18 is opened on the outside of the quick-clamp sleeve 2, the depth of the locking groove 17 is greater than the depth of the annular groove 18, the locking rod 19 is slidably installed in the locking frame 13, one end of the locking rod 19 is inserted into the locking groove 17, and a pitting device is provided on the outside of the drill rod 1.

[0032] The pit-drilling device includes a lifting motor 20, a screw sleeve 21, a screw 22, a frame 23, a spiral plate 24, a connecting block 25, a connecting sleeve 26, a slide rod 27, a movable frame 28, and a drive motor 29. The lifting motor 20 is detachably mounted on the top of the frame 23. The screw sleeve 21 is detachably mounted on the movable frame 28. The screw 22 is rotatably mounted on the inner side of the frame 23, and its top end is connected to the output end of the lifting motor 20. The spiral plate 24 is fixedly mounted on the outer side of the drill rod 1. The movable frame 28 is movably positioned on the inner side of the frame 23. The drive motor 29 is detachably mounted on the top of the movable frame 28, and its output end is connected to the top of the connecting sleeve 26. The connecting block 25 is detachably inserted into the connecting sleeve 26 and is fixedly positioned on the top of the drill rod 1. The slide rod 27 is fixedly mounted on the inner side of the frame 23, and the movable frame 28 is slidably connected to the slide rod 27.

[0033] The frame 23 is equipped with casters 30 at the bottom, a support rod 31 is fixed at the bottom of the frame 23, and a handle 32 is fixed at the top of the frame 23.

[0034] In this embodiment, when the device is needed, the frame 23 is first tilted by the handle 32, and then pushed or pulled by the handle 32, so that the frame 23 is moved by the universal wheels 30 at the bottom. After moving to the designated position, the handle 32 is released, and the support rod 31 is supported on the ground. Then the drive motor 29 is turned on. The drive motor 29 drives the drill rod 1 and its outer spiral plate 24 to rotate through the cooperation of the connecting sleeve 26 and the connecting block 25. Then the lifting motor 20 is turned on. The lifting motor 20 drives the screw 22 connected to the output end to rotate inside the frame 23. Since the screw sleeve 21 is movably sleeved on the outside of the screw 22 by the thread, the screw sleeve 21 will drive the movable frame 28 to descend along the slide rod 27, so that the movable frame 28 drives the drill rod 1 and spiral plate 24 and other components to descend, so as to realize the pit drilling work.

[0035] In this embodiment, a spring 33 is connected to one side of the retaining sleeve 14, and a thrust bearing 34 is detachably provided on one side of the reset plate 15. The other end of the spring 33 is connected to the thrust bearing 34.

[0036] A sliding block 35 is fixedly provided on the inner side of the locking sleeve 14, and a sliding groove 36 is provided on the outer side of the quick-lock sleeve 2, in which the sliding block 35 slides.

[0037] A reset rod 37 is connected to one side of the reset block 16, and a reset hole 38 is opened in the fixed block 10. One end of the reset rod 37 slides into the reset hole 38.

[0038] A push spring 39 is movably sleeved on the outer side of the quick-release card holder 8, and the two ends of the push spring 39 are connected to the movable plate 5 and the quick-release card holder 2, respectively.

[0039] One end of the locking rod 19 is connected to a locking plate 40, and a connecting spring 41 is movably sleeved on the outside of the locking rod 19. The two ends of the connecting spring 41 are connected to the locking plate 40 and the locking frame 13, respectively.

[0040] When it is necessary to replace or disassemble / repair the drill rod 1, first rotate the reset plate 15 clockwise, causing the reset plate 15 to drive the reset groove 9 to rotate clockwise. This causes the reset plate 15 to drive the thrust bearing 34 installed on one side and the reset block 16 installed on the other side to rotate clockwise. Then, the reset block 16 will drive the reset rod 37 on one side to slide clockwise along the reset hole 38. The reset block 16 will cooperate with the fixing block 10 to press the reset spring 50. When the reset spring 50 is pressed to its limit, the reset groove 9 will rotate to the position corresponding to the limit plate 11. Then, push the locking sleeve 14. The locking sleeve 14 will drive the inner sliding block 35 to slide along the sliding groove 36. The locking sleeve 14 will also drive the longitudinal plate 12 and the limit plate 11 to gradually slide through the reset groove 9, and simultaneously lock them in place. The sleeve 14, in conjunction with the thrust bearing 34, compresses the support spring 33. When the support spring 33 is compressed to its limit, the limiting plate 11 closest to the locking sleeve 14 slides through the reset groove 9 and moves to hold the other side of the reset plate 15. Then, the reset plate 15 is released, and the reset spring 50 pushes the reset block 16 to rotate and reset. The reset block 16 then drives the reset rod 37 on one side to rotate and reset along the reset hole 38. The reset block 16 also drives the reset groove 9 and the thrust bearing 34 to rotate and reset through the reset plate 15, so that the reset groove 9 rotates and resets to a position that does not correspond to the limiting plate 11. At this time, the longitudinal plate 12, in conjunction with the limiting plate 11 closest to the locking sleeve 14, limits the locking sleeve 14 to one side of the reset plate 15, so that the inner wall of the locking sleeve 14 does not limit the outer wall of the locking plate 40. Then, the control sleeve 4 is rotated forward. The control sleeve 4 will drive the locking bracket 13 on one side to rotate forward. The locking bracket 13 will drive the locking rod 19, the locking plate 40, and the connecting spring 41 to rotate forward. Then, the inner wall of the locking groove 17 will press against one end of the locking rod 19. Due to the rounded corner treatment at the connection between the locking groove 17 and the annular groove 18 and the rounded corner design at one end of the locking rod 19, one end of the locking rod 19 will slide out of the locking groove 17 and slide along the annular groove 18. The other end of the locking rod 19 will be stretched outward by the connecting spring 41 driven by the locking plate 40. At the same time, the control sleeve 4 will drive the inner variable diameter movable groove 6 to rotate forward. During this process, the push spring 39 will reset and push the movable plate 5 outward, so that the outer wall of the movable plate 5 is always in contact with the inner wall of the movable groove 6. As the wall aligns, the movable plate 5 causes one side of the quick-release bracket 8 to gradually slide out of the quick-release slot 7. When the quick-release bracket 8 has completely slid out of the quick-release slot 7, the locking bracket 13 drives the locking rod 19, locking plate 40, and connecting spring 41 to rotate to the locking slot 17 connected to the other end of the annular groove 18. Then, the connecting spring 41 resets and pulls the locking plate 40, causing the locking plate 40 to drive the locking rod 19 to slide inward, so that one end of the locking rod 19 is inserted into the locking slot 17. Then, the quick-release sleeve 2 and the quick-release rod 3 are pulled to both sides respectively, so that the quick-release sleeve 2 is removed from the outside of the quick-release rod 3. Then, the drill rod 1 is pulled downward, so that the drill rod 1 drives the connecting block 25 to disengage from the connecting sleeve 26, thus removing the drill rod 1 part. Then, the drill rod 1 part can be replaced.After replacement, re-insert the connecting block 25 connected to the top of the replaced drill rod 1 into the connecting sleeve 26. Then, pass the quick-clamp rod 3 through the connecting sleeve 26 and connecting block 25 from one end, and then fit the quick-clamp sleeve 2 onto the outside of the quick-clamp rod 3 from the other side. Then, rotate the control sleeve 4 in the opposite direction, so that the control sleeve 4 drives the clamping rod 19, clamping plate 40, and connecting spring 41 to rotate in the opposite direction through the clamping bracket 13. Then, the side wall of the clamping groove 17 presses against one end of the clamping rod 19, so that one end of the clamping rod 19 slides out of the clamping groove 17 and enters the annular groove 18 to slide in the opposite direction. The other end of the clamping rod 19 is again stretched outward by the connecting spring 41 through the clamping plate 40. At the same time, the control sleeve 4 drives the inner variable-diameter movable groove 6 to rotate in the opposite direction. Then, the movable groove 6... The wall presses against the outer wall of the movable plate 5, causing the movable plate 5 to slide the quick-release bracket 8 on one side inward. The movable plate 5 also gradually presses against the push spring 39 on one side. When one end of the quick-release bracket 8 is fully inserted into the quick-release groove 7, the locking bracket 13 just causes the locking rod 19 and other components to rotate back to the position corresponding to the original locking groove 17. Then, the connecting spring 41 pulls the locking plate 40 to slide inward, causing the locking plate 40 to drive the locking rod 19 to slide inward and reset, so that one end is re-locked into the original locking groove 17. Then, the reset plate 15 is rotated forward again, causing the reset plate 15 to drive the reset groove 9 to rotate forward again. The reset plate 15 also drives the reset block 16 and the thrust bearing 34 to rotate forward again. Then, the reset block 16 drives the reset rod 37 on one side along the reset groove 37. When the positioning hole 38 rotates in the forward direction, the reset block 16 and the fixing block 10 will cooperate again to press the reset spring 50. When the reset groove 9 rotates again to the position corresponding to the limiting plate 11, the support spring 33 pushes the locking sleeve 14 to slide and reset. Then, the locking sleeve 14 drives the inner sliding block 35 to slide and reset along the sliding groove 36. Then, the locking sleeve 14 drives the three limiting plates 11 to slide and reset through the longitudinal plate 12. When the support spring 33 is fully reset, the other two limiting plates 11 just move to both sides of the reset plate 15. Then, the reset plate 15 is released, and the reset spring 50 pushes the reset block 16 to rotate and reset again. Then, the reset block 16 drives the one-side reset rod 37 to rotate and reset along the reset hole 38. Then, the reset block 16 passes through the reset plate 15. The thrust bearing 34 and the reset groove 9 are rotated and reset. After the reset spring 50 is fully reset, the reset groove 9 rotates and resets again to a position that does not correspond to the limit plate 11. Then, the longitudinal plate 12 and the two limit plates 11 cooperate to support the locking sleeve 14 to one side of the reset plate 15. The sliding block 35 and the sliding groove 36 further limit the locking sleeve 14, preventing it from moving. Then, the inner wall of the locking sleeve 14 further limits the outer wall of the locking plate 40, preventing the locking plate 40 and the locking rod 19 from moving outwards. Finally, the locking rod 19, in conjunction with the locking groove 17, limits the locking frame 13, preventing the locking frame 13 and the control sleeve 4 from rotating. This prevents accidental unlocking, ensures the stability of the installation, and guarantees the stable installation of the drill rod 1.

[0041] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A pit-digging device for cultivating medicinal herbs under forest cover, characterized in that, include: A drill rod, the top of which is equipped with a quick-locking device; The quick-card device includes a quick-card sleeve, a quick-card rod, a control sleeve, a movable plate, a movable groove, a quick-card slot, and a quick-card frame. The movable plate is connected to one end of the quick-card frame. The outer wall of the movable plate fits against the inner wall of the movable groove. The movable groove has a variable diameter structure and is opened in the control sleeve. The quick-card slot is opened on the outside of the quick-card rod. A limit mechanism is installed on the outside of the quick-card sleeve. The limiting mechanism includes a reset groove, a fixing block, a limiting plate, a longitudinal plate, a locking frame, a locking sleeve, a reset plate, a reset block, a locking groove, a reset spring, an annular groove, and a locking rod. The reset spring is connected to the reset block and the fixing block. The reset groove is formed on the reset plate. The longitudinal plate is connected to one side of the locking sleeve. The three limiting plates are connected to one side of the longitudinal plate. The locking frame is installed on one side of the control sleeve. The locking groove is formed at both ends of the annular groove. The annular groove is formed on the outside of the quick-release sleeve. The depth of the locking groove is greater than the depth of the annular groove. The locking rod is installed in the locking frame. A pitting device is provided on the outside of the drill rod.

2. The planting hole digger for understory medicinal herb cultivation according to claim 1, characterized in that, The pit-drilling device includes a lifting motor, a screw sleeve, a screw rod, a frame, a spiral plate, a connecting block, a connecting sleeve, a slide rod, a movable frame, and a drive motor. The lifting motor is detachably mounted on the top of the frame. The screw sleeve is detachably mounted on the movable frame. The screw rod is rotatably mounted on the inner side of the frame, and its top end is connected to the output end of the lifting motor. The spiral plate is fixedly mounted on the outer side of the drill rod. The movable frame is movably disposed on the inner side of the frame. The drive motor is detachably mounted on the top of the movable frame, and its output end is connected to the top of the connecting sleeve. The connecting block is detachably inserted into the connecting sleeve and is fixedly disposed on the top of the drill rod. The slide rod is fixedly mounted on the inner side of the frame, and the movable frame and the slide rod are slidably connected.

3. The planting hole digger for understory medicinal herb cultivation according to claim 2, characterized in that, The frame is equipped with casters at the bottom, a support rod is fixed at the bottom of the frame, and a handle is fixed at the top of the frame.

4. The planting hole digger for understory medicinal herb cultivation according to claim 1, characterized in that, A spring is connected to one side of the retaining sleeve, and a thrust bearing is detachably provided on one side of the reset plate. The other end of the spring is connected to the thrust bearing.

5. The planting hole digger for understory medicinal herb cultivation according to claim 4, characterized in that, A sliding block is fixedly provided on the inner side of the fastening sleeve, and a sliding groove is provided on the outer side of the fastening sleeve, with the sliding block sliding in the sliding groove.

6. The planting hole digger for understory medicinal herb cultivation according to claim 5, characterized in that, A reset rod is connected to one side of the reset block, and a reset hole is opened in the fixed block. One end of the reset rod slides into the reset hole.

7. The planting hole digger for understory medicinal herb cultivation according to claim 1, characterized in that, A push spring is movably sleeved on the outside of the quick-release card holder, and the two ends of the push spring are respectively connected to the movable plate and the quick-release card holder.

8. The planting hole digger for understory medicinal herb cultivation according to claim 6, characterized in that, One end of the locking rod is connected to a locking plate, and a connecting spring is movably sleeved on the outside of the locking rod. The two ends of the connecting spring are respectively connected to the locking plate and the locking frame.

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