Digging Device for Deep Root Chinese Medicinal Materials

Abstract

The present invention discloses a digging device for deep-rooted Chinese medicinal materials in the technical field of deep-rooted Chinese medicinal material digging, which includes a bracket, two main plow blades fixed on the left and right sides of the bracket, and two auxiliary plow blades located below the bracket. A driving group is arranged on the bracket, and a support frame is slidably connected to the bottom of the bracket. The two auxiliary plow blades are respectively fixedly connected to the left and right sides of the bottom of the support frame. In the present invention, when the driving plate rises, the side plates will first unfold to complete the pre-lifting of the soil and burdock, so that the burdock and the soil can be tightly held together, thereby avoiding the loosening of the soil on both sides of the burdock, resulting in insufficient force when the burdock is conveyed upward or the burdock directly tilting. Furthermore, the force when the auxiliary plow blades rise for lifting is increased, so that the distance between the auxiliary plow blades does not need to be adjusted, avoiding interference with the burdock due to too small a distance and insufficient lifting force due to too large a distance.

Description

Technical Field

[0001] The present invention relates to the technical field of deep root Chinese herbal medicine excavation, and specifically to an excavation device for deep root Chinese herbal medicines. Background Art

[0002] Burdock is an underground deep root crop. Its root is long, rod-shaped, and vertically deep into the soil. At present, the mechanization level of burdock harvesting in China is relatively low. Most of them are carried out in the form of manual operation. The labor intensity and difficulty of excavation are very high, time-consuming and laborious, and the production efficiency is extremely low. Moreover, it is easy to cause damage or breakage of the roots of burdock. When using mechanical harvesting, two inclined plow blades are driven by a driving group to vibrate up and down, so as to "lift" the soil and burdock upward to convey the burdock upward.

[0003] In actual use, when the plow blades vibrate up and down to lift the burdock, there is often a situation where the lifting force is insufficient. Since the burdock is located between the two plow blades, and the magnitude of this lifting force is related to the distance between the bottom ends of the plow blades and the misalignment angle between the upper and lower ends of the plow blades, that is, the smaller the distance between the bottom ends of the plow blades (or the larger the misalignment distance between the bottom end and the top end), the greater the lifting force that can be achieved during upward movement. However, the distance between the plow blades is generally fixed. Although there are types that can adjust the distance, if the distance between the plow blades is too small, it is easy to interfere with the burdock during movement. If it is too large, it is easy to cause insufficient lifting force, making it difficult for the burdock to be smoothly conveyed upward when the plow blades vibrate up and down to lift the burdock.

[0004] Based on this, the present invention designs an excavation device for deep root Chinese herbal medicines to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an excavation device for deep root Chinese herbal medicines to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An excavation device for deep root Chinese herbal medicines, including a bracket, two main plow blades fixed on the left and right sides of the bracket, and two sub-plow blades located below the bracket. A driving group is arranged on the bracket. The bottom of the bracket is slidably connected with a support frame. The two sub-plow blades are respectively fixedly connected to the left and right sides of the bottom of the support frame. The support frame is slidably connected with a driving plate. The driving group is used to drive the driving plate to vibrate up and down. The left and right sides of the driving plate are both slidably connected with push rods. The inner parts of the sub-plow blades are respectively provided with sliding grooves. The push rods are respectively located inside the two sliding grooves. The side walls of the sliding grooves are respectively rotatably connected with side plates. The bottom ends of the two push rods are respectively rotatably connected with support rods. The top ends of the two support rods are respectively rotatably connected to the side plates.

[0007] As a further solution of the present invention, two first positioning holes and second positioning holes are provided on both the left and right sides of the driving plate. The second positioning holes are located below the first positioning holes. Positioning rods are arranged inside the first positioning holes. The positioning rods are all slidably connected to the side wall of the support frame. First springs are fixedly connected between the side walls of the positioning rods and the inner wall of the support frame. Contact rods are arranged on the side walls of the positioning rods. Wedge blocks are arranged below one side of each contact rod. The wedge blocks are used to push the contact rods to drive the positioning rods to slide.

[0008] As a further solution of the present invention, the contact rod is rotatably connected to the positioning rod.

[0009] As a further solution of the present invention, two wedge-shaped support blocks are fixedly connected to each sub-plow blade. Baffles are rotatably connected to the bottom ends of the side plates. Slide rods are rotatably connected to the bottom ends of the baffles. The slide rods are respectively slidably connected to the two sub-plow blades.

[0010] As a further solution of the present invention, second springs are fixedly connected between the left and right side walls of the push rod and the driving plate.

[0011] As a further solution of the present invention, rollers are arranged above and below the end of the driving plate. The rollers are rotatably connected to the inner side wall of the push rod.

[0012] As a further solution of the present invention, the driving group includes a crankshaft and a support shaft. The support shaft is rotatably connected to the top of the driving plate. The support shaft is rotatably connected to the crankshaft. The crankshaft is fixedly connected to a driving motor. The driving motor is fixedly connected to the bracket.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] In the present invention, when the driving plate rises, the side plates will first unfold to complete the pre-lifting of the soil and burdock, so that the burdock and the soil can be tightly held, thereby avoiding the loosening of the soil on both sides of the burdock, which may cause insufficient force when the burdock is conveyed upward or the burdock is directly tilted. Furthermore, it increases the force when the sub-plow blades rise for lifting, so that the distance between the sub-plow blades does not need to be adjusted, avoiding interference with the burdock when the distance is too small and insufficient lifting force when the distance is too large. Then, the sub-plow blades rise to complete the upward conveyance of the soil and burdock. After that, when the side plates are completely retracted, the sub-plow blades descend, avoiding the increase in resistance when the side plates in the unfolded state descend. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a schematic diagram of the connection relationship between the support frame and the sub-plow blades of the present invention;

[0017] Figure 3 Schematic diagram of the positional relationship between the driving board and the support frame of the present invention;

[0018] Figure 4 Schematic diagram of the chute and the secondary plow blade of the present invention;

[0019] Figure 5 Schematic diagram of the connection relationship between the side plate, the baffle plate and the sliding rod of the present invention;

[0020] Figure 6 Schematic diagram of the positional relationship between the chute, the side plate and the support rod of the present invention;

[0021] Figure 7 Schematic diagram of the positional relationship between the bracket, the crankshaft and the positioning rod of the present invention;

[0022] Figure 8 Schematic diagram of the positional relationship between the driving board, the push rod and the roller of the present invention;

[0023] Figure 9 is Figure 8 Partial enlarged view of location A in

[0024] In the attached drawings, the components represented by each reference numeral are listed as follows:

[0025] 1. Bracket; 2. Main plow blade; 3. Secondary plow blade; 4. Support frame; 5. Driving board; 6. Push rod; 7. Chute; 8. Side plate; 9. Support rod; 10. First positioning hole; 11. Second positioning hole; 12. Positioning rod; 13. First spring; 14. Contact rod; 15. Wedge block; 16. Support block; 17. Baffle plate; 18. Sliding rod; 19. Second spring; 20. Roller; 21. Crankshaft; 22. Support shaft; 23. Driving motor. Detailed implementation manners

[0026] Please refer to Figures 1-9 , the present invention provides a technical solution: a digging device for deep-rooted Chinese medicinal materials, including a bracket 1, two main plow blades 2 fixed on the left and right sides of the bracket 1, and two secondary plow blades 3 located below the bracket 1. A driving group is arranged on the bracket 1. A support frame 4 is slidably connected to the bottom of the bracket 1. The two secondary plow blades 3 are respectively fixedly connected to the left and right sides of the bottom of the support frame 4. A driving board 5 is slidably connected to the support frame 4. The driving group is used to drive the driving board 5 to vibrate up and down. Push rods 6 are slidably connected to both the left and right sides of the driving board 5. Chutes 7 are respectively opened inside the two secondary plow blades 3. The push rods 6 are respectively located inside the two chutes 7. Side plates 8 are rotatably connected to the side walls of the chutes 7. The bottom ends of the two push rods 6 are rotatably connected to support rods 9. The top ends of the two support rods 9 are rotatably connected to the side plates 8.

[0027] As Figures 1-6 shown:

[0028] The support frame 1 is connected to the tractor and driven by the tractor to move forward, and the lifting of the support frame 1 is completed by the hydraulic group at the rear end of the tractor. When harvesting burdock, after the support frame 1 descends, it moves along with the tractor, so that the main plow blade 2 and the sub-plow blade 3 enter the ground together to break the soil. During the soil-breaking process, the driving plate 5 moves up and down through the driving group;

[0029] Process of the driving plate 5 rising:

[0030] During the rising process of the driving plate 5, it drives the push rod 6 to slide upward inside the chute 7. At this time, the push rod 6 will maintain an upward trend and slide along the end of the driving plate 5 to both sides. When the push rod 6 rises, it will push the side plate 8 to gradually unfold inside the chute 7 through the support rod 9. At this time, the soil and burdock in the middle of the side plate 8 will be squeezed on both sides, enabling the soil to hold the burdock tightly. When the bottom end of the push rod 6 contacts the side wall of the chute 7, the push rod 6 will directly pull the sub-plow blade 3 and the support frame 4 to rise together with the driving plate 5. At this time, the support frame 4 slides upward along the support frame 1. At this time, the sub-plow blade 3 and the side plate 8 will simultaneously "lift" the burdock and the soil around it, and through the side plate 8, while increasing the lifting force, it can squeeze the soil on both sides of the burdock, thus preventing the soil on both sides of the burdock from loosening, resulting in insufficient force when the burdock is conveyed upward or the burdock tilting directly. Moreover, in this way, the distance between the two sub-plow blades 3 does not need to be adjusted, thus avoiding interference with the burdock due to too small a distance and insufficient lifting force due to too large a distance;

[0031] After the driving plate 5 rises to the highest position, the burdock will be conveyed to the upper layer at the back of the soil and then directly picked out by hand. Then the driving plate 5 starts to descend;

[0032] Process of the driving plate 5 descending:

[0033] When the driving plate 5 descends, it drives the support frame 4 to slide down along the support frame 1. At this time, the push rod 6 slides downward along the chute 7. At this time, the push rod 6 will move along the end of the driving plate 5 towards the direction close to the driving plate 5, and the side plate 8 will also be gradually pulled in by the support rod 9 until the push rod 6 and the sub-plow blade 3 descend to the initial position and then the next rising operation can be carried out;

[0034] The harvesting of burdock is completed through the multiple rising and falling of the sub-plow blade 3 and the multiple unfolding and folding processes of the side plate 8.

[0035] On both the left and right sides of the driving plate 5, two first positioning holes 10 and second positioning holes 11 are provided. The second positioning holes 11 are located below the first positioning holes 10. Positioning rods 12 are arranged inside the first positioning holes 10. The positioning rods 12 are all slidably connected to the side wall of the support frame 4. A first spring 13 is fixedly connected between the side wall of the positioning rod 12 and the inner wall of the support frame 4. Contact rods 14 are arranged on the side walls of the positioning rods 12. Below one side of each contact rod 14, a wedge-shaped block 15 is provided. The wedge-shaped block 15 is used to push the contact rod 14 to drive the positioning rod 12 to slide.

[0036] The contact rod 14 is rotatably connected to the positioning rod 12.

[0037] As Figure 2 、 Figure 3 and Figure 7 shown:

[0038] When the driving plate 5 does not rise, the positioning rod 12 is inside the first positioning hole 10. At this time, the positioning rod 12 will limit the support frame 4 by inserting into the first positioning hole 10, avoiding the support frame 4 and the secondary plow blade 3 from rising at the initial stage of the driving plate 5 rising;

[0039] When the driving plate 5 rises:

[0040] The driving plate 5 will slide upward along the support frame 4. At this time, the wedge-shaped block 15 will approach the positioning rod 12 from below. At this time, the push rod 6 will slide upward inside the chute 7 and the push rod 6 will slide along the driving plate 5. At this time, the support rod 9 will push the side plate 8 to unfold. After the side plate 8 is unfolded, the wedge-shaped block 15 will rise to a height higher than the positioning rod 12. During the process of the wedge-shaped block 15 rising to a height higher than the positioning rod 12, the side wall of the wedge-shaped block 15 will contact the contact rod 14. At this time, the contact rod 14 will rotate and drive the positioning rod 12 to slide along the bracket 1 under the push of the wedge-shaped block 15 and compress the first spring 13. At this time, the positioning rod 12 will move out of the first positioning hole 10. At this time, the positioning rod 12 will release the restriction on the support frame 4. Then the push rod 6 will unfold the side plate 8 through the support rod 9. And at this time, the push rod 6 will drive the secondary plow blade 3 and the support frame 4 to rise together. At this time, the wedge-shaped block 15 passes over the positioning rod 12. At this time, the positioning rod 12 will contact the side wall of the support frame 4 under the reset action of the first spring 13. At this time, the secondary plow blade 3 and the side plate 8 will hold up and convey the soil and burdock upward while rising;

[0041] After the driving plate 5 rises to the highest position, the positioning rod 12 will enter the second positioning hole 11. At this time, the downward trend of the support frame 4 and the secondary plow blade 3 will be stopped. At this time, the driving plate 5 will descend;

[0042] When the driving plate 5 descends:

[0043] At this time, the wedge block 15 will descend, the push rod 6 will slide down along the chute 7 and close the side plates 8 through the support rod 9. When the side plates 8 are completely closed, the wedge block 15 will contact the contact rod 14 during the descending process, and then drive the positioning rod 12 to move out of the second positioning hole 11 through the contact rod 14. Then, the support frame 4 and the sub-plow 3 will descend until the positioning rod 12 enters the first positioning hole 10 after reaching the limit of descent.

[0044] That is, through the cooperation of the wedge block 15, the positioning rod 12, the contact rod 14 and the first spring 13, when the driving plate 5 rises, the side plates 8 will first unfold to complete the pre-lifting of the soil and burdock, so that the burdock and the soil can be tightly held, thereby increasing the force when the sub-plow 3 rises for lifting. Then, the sub-plow 3 can rise. When the driving plate 5 descends, the burdock has been transported to the ground. At this time, the side plates 8 will first close. After the closing is completed and the restriction on the support frame 4 and the sub-plow 3 is released, the sub-plow 3 can descend. By this method, it can be avoided that the side plates 8 are blocked by the soil when the sub-plow 3 and the already unfolded side plates 8 descend together.

[0045] Two wedge-shaped support blocks 16 are fixedly connected to each of the sub-plows 3. The bottom ends of the side plates 8 are rotatably connected to baffles 17. The bottom ends of the baffles 17 are rotatably connected to slide rods 18. The slide rods 18 are respectively slidably connected to the two sub-plows 3.

[0046] As Figures 4-6 shown:

[0047] When the side plates 8 are pushed by the support rod 9 to unfold, the side walls of the side plates 8 will contact the support blocks 16. Through the support blocks 16, it can be avoided that soil enters the inside of the side plates 8 and the chutes 7. When the side plates 8 unfold, the baffles 17 will rotate with the side plates 8 and their bottom ends will rotate on the slide rods 18 while pulling the slide rods 18 to slide along the sub-plows 3. The side walls of the baffles 17 also contact the support blocks 16, thereby avoiding the generation of gaps for soil to enter.

[0048] Second springs 19 are fixedly connected between the left and right side walls of the push rod 6 and the driving plate 5.

[0049] Rollers 20 are arranged above and below the end of the driving plate 5. The rollers 20 are respectively rotatably connected to the inner side walls of the push rod 6.

[0050] As Figure 8 and Figure 9 shown:

[0051] When the driving plate 5 moves up and down, the push rod 6 slides up and down inside the chute 7. At this time, the push rod 6 will slide along the concave position at the end of the driving plate 5 through the rollers 20, thereby reducing the friction. The compression and relaxation of the second spring 19 can play a role in resetting the push rod 6.

[0052] The driving group includes a crankshaft 21 and a support shaft 22. The support shaft 22 is rotatably connected to the top of the driving plate 5. The support shaft 22 is rotatably connected to the crankshaft 21. The crankshaft 21 is fixedly connected to a driving motor 23, and the driving motor 23 is fixedly connected to the bracket 1.

[0053] As Figure 2 and Figure 7 shown:

[0054] When the driving motor 23 works, it drives the crankshaft 21 to rotate, and then drives the driving plate 5 to complete lifting through the crankshaft 21 and the support shaft 22. The lifting mode of the driving plate 5 can also be various in the prior art.

Claims

1. An excavation device for deep-rooted Chinese medicinal materials, comprising a bracket (1), two main plow blades (2) fixed on the left and right sides of the bracket (1), and two auxiliary plow blades (3) located below the bracket (1). A drive group is arranged on the bracket (1), and it is characterized in that: A support frame (4) is slidably connected to the bottom of the bracket (1). Two auxiliary plow blades (3) are respectively fixedly connected to the left and right sides of the bottom of the support frame (4). The support frame (4) is slidably connected to a driving plate (5). The driving group is used to drive the driving plate (5) to vibrate up and down. Push rods (6) are slidably connected to both the left and right sides of the driving plate (5). Chute grooves (7) are respectively formed inside the auxiliary plow blades (3). The push rods (6) are respectively located inside the two chute grooves (7). Side plates (8) are rotatably connected to the side walls of the chute grooves (7). The bottom ends of the two push rods (6) are rotatably connected to support rods (9). The top ends of the two support rods (9) are rotatably connected to the side plates (8). Two first positioning holes (10) and second positioning holes (11) are respectively formed on both the left and right sides of the driving plate (5). The second positioning holes (11) are located below the first positioning holes (10). Positioning rods (12) are respectively arranged inside the first positioning holes (10). The positioning rods (12) are all slidably connected to the side walls of the support frame (4). First springs (13) are fixedly connected between the side walls of the positioning rods (12) and the inner walls of the support frame (4). Contact rods (14) are arranged on the side walls of the positioning rods (12). Wedge-shaped blocks (15) are arranged below one sides of the contact rods (14). The wedge-shaped blocks (15) are used to push the contact rods (14) to drive the positioning rods (12) to slide. Two wedge-shaped support blocks (16) are respectively fixedly connected to the auxiliary plow blades (3). The bottom ends of the side plates (8) are rotatably connected to baffle plates (17). The bottom ends of the baffle plates (17) are rotatably connected to sliding rods (18). The sliding rods (18) are respectively slidably connected to the two auxiliary plow blades (3). Second springs (19) are fixedly connected between the left and right side walls of the push rods (6) and the driving plate (5). The driving group includes a crankshaft (21) and a support shaft (22). The support shaft (22) is rotatably connected to the top of the driving plate (5). The support shaft (22) is rotatably connected to the crankshaft (21). The crankshaft (21) is fixedly connected to a driving motor (23). The driving motor (23) is fixedly connected to the bracket (1).

2. The digging device for deep-rooted Chinese medicinal materials according to claim 1, characterized in that: The contact rods (14) are rotatably connected to the positioning rods (12).

3. The excavating device for deep-rooted Chinese medicinal materials according to claim 1, wherein: Rollers (20) are respectively arranged above and below the end of the driving plate (5). The rollers (20) are rotatably connected to the inner side walls of the push rods (6).

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