Deep scarification fertilization land preparation machine
By designing integrated deposit boxes, bottom boxes, spiral shafts, rectification, and auxiliary scraping mechanism, the deep pine fertilizer rectification machine, solving the problem of the lack of integration of rectification in the existing technologies, the lack of rectification and fertilization in the existing technology, and realized the loosening The efficient combination of soil and fertilization has improved soil fertility and operating efficiency.
Patent Information
- Application Number
- CN202411959700.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-01-24
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing deep-pulverized floor preparation machine lacks the integrated function of land preparation and fertilization, resulting in low fertilizer utilization and redundant operation procedures. The fertilizer spills out a wide range during fertilization, and some fertilizers cannot be turned into the soil.
A deep pine fertilizer rectification machine is designed, which integrates the deposit box, bottom box, spiral axis, rectification and auxiliary scraping mechanism. Drives the fertilizer in the bottom box by driving the spiral axis through walking, to achieve loose soil and fertilization application. Synchronous operations and clear the debris on the road through the auxiliary scratching mechanism.
Achieve automatic stirring to prevent fertilizer from blocking fertilizer and ensure smooth fertilization; effectively loose soil during the marching process to improve soil permeability; realize the efficient combination of loose soil and fertilizer, improve soil fertility; Continuousness.
Smart Images

Figure CN119344015A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of soil preparation machines, in particular to a deep loosening and fertilizing soil preparation machine. Background Art
[0002] Deep soil loosening involves using a subsoiler to loosen the plow base layer 5 to 15 centimeters below the tillage layer, loosening the soil and increasing its depth. As a key soil tillage technique, deep loosening is gaining increasing attention both domestically and internationally. Long-term plowing or stubble removal can cause the plow base layer to rise, shallowing the tillage layer. This ultimately leads to increased soil erosion and soil degradation. The more degraded the soil, the lower farmers' incomes and production efficiency.
[0003] The traditional method involves using a high-horsepower tractor to drive a plow or heavy harrow, followed by one or two leveling passes with a rotary tiller, and finally a deep trencher to create deep trenches. This approach is not only inefficient and energy-intensive, but existing deep tillage machines typically only provide deep tillage and lack integrated fertilization and preparation functions. Consequently, fertilizer applied later is often left on the surface and needs to be worked into the soil, resulting in low fertilizer utilization and redundant operating procedures. Furthermore, during late-application fertilizer application, the fertilizer falls widely, with some remaining on the surface and unable to be incorporated into the soil. Summary of the Invention
[0004] The lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of The lower end surface of the No. 1 fixed plate is equipped with an auxiliary scraping mechanism, and both sides of the lower end surface of the No. 2 fixed plate are fixed with a No. 1 connecting plate, and the two No. 1 connecting plates are slidably embedded with a No. 1 inner plate inside, and the two No. 1 inner plates are provided with a rolling roller that rotates relative to one end; The auxiliary scraping mechanism includes a scraping plate, and a second inner plate is fixedly provided on both sides of the upper end surface of the scraping plate, and a second connecting plate is slidably sleeved on the outer sides of the two second inner plates, and the upper end of the second connecting plate is fixedly connected to the lower end of the first fixed plate, and a guide arc plate is fixedly provided on the opposite side of the two second connecting plates, and a guide roller is rotatably provided on the opposite side of the two second inner plates, and the guide roller is located between the guide arc plate and the scraping plate; The land block comprises a block body, two connecting pipes are fixedly provided on the inner side of the block body, and one end of the connecting pipe away from the block body is fixedly provided on the lower end surface of the bottom box.
[0005] Preferably, both sides of the upper end surface of the material storage box are provided with feed ports, and the lower end of the material storage box is provided with two discharge ports, and the two discharge ports are respectively located at the openings of the upper ends of the two bottom boxes.
[0006] Preferably, a No. 1 transmission wheel is fixedly provided at one end of the two No. 1 transmission shafts away from the bottom box, and two No. 2 transmission wheels are fixedly sleeved on one end of the two No. 2 transmission shafts away from the bottom box, and a No. 2 transmission wheel on the No. 2 transmission shaft on the same side is connected to the No. 1 transmission wheel on the No. 1 transmission shaft on the same side through a No. 2 transmission belt, and a mounting plate is fixedly provided on the lower end surfaces of the two support plates, and a walking assembly is rotatably provided on the opposite side of the two mounting plates.
[0007] Preferably, the walking assembly includes a walking wheel, which is rotatably set on the mounting plate through a walking shaft, wherein a linkage wheel is fixedly sleeved on one end of the walking shaft away from the mounting plate, and the linkage wheel located on the same side is connected to another No. 2 transmission wheel on the No. 2 transmission shaft on the same side through a No. 1 transmission belt.
[0008] Preferably, the lower end surfaces of the two bottom boxes are each provided with a plurality of communication openings, and the plurality of communication openings are respectively connected to a plurality of communication pipes.
[0009] Preferably, the front end surfaces of the two No. 1 connecting plates are each provided with a plurality of No. 1 sockets, and the two No. 1 connecting plates are provided with a No. 1 sliding groove on one side close to the rolling roller, and the two ends of the rolling roller are respectively located in the two No. 1 sliding grooves, and the front ends of the two No. 1 inner plates are each provided with a No. 1 fixing groove, and a No. 1 pin is embedded in the No. 1 socket and the No. 1 pin is embedded in the No. 1 fixing groove to complete the clamping and fixation of the No. 1 inner plate.
[0010] Preferably, the rear end faces of the two No. 2 connecting plates are each provided with a plurality of No. 2 sockets, the two No. 2 connecting plates are provided with a No. 2 sliding groove on one side close to the guide roller, the two ends of the guide roller are respectively located in the two No. 2 sliding grooves, and the front ends of the two No. 2 inner plates are each provided with a No. 2 fixing groove, the No. 2 sockets are embedded with a No. 2 pin and the No. 2 pin is embedded in the No. 2 fixing groove to complete the clamping and fixation of the No. 2 inner plate.
[0011] Working principle: When in use, the driving assembly (including tractors and other power traction equipment) is used to achieve walking. At this time, the walking wheel at the lower end moves, and the movement of the walking wheel drives the linkage wheel to move. The linkage wheel drives the No. 2 transmission shaft to rotate using the No. 1 transmission belt. Then the No. 2 transmission wheel on the No. 2 transmission shaft drives the No. 1 transmission wheel to rotate using the No. 2 transmission belt, so as to realize the rotation of the No. 1 transmission shaft. When the No. 1 transmission shaft and the No. 2 transmission shaft rotate, they will drive the inner connected spiral shaft to rotate. During the rotation process, the spiral shaft can stir the fertilizer and other materials inside the bottom box, thereby avoiding the inability to discharge materials due to internal blockage; When the land leveling machine is towed, the land leveling block at the lower end will loosen the soil. Since the auxiliary scraping mechanism is located at the front end of the travel route, that is, at the front end of the land leveling block, it will push the debris (including straw, etc.) on the road ahead during the travel. During the pushing process, due to continuous accumulation, the debris will move forward along the guide roller and the guide arc plate, thereby ensuring the smooth progress of the auxiliary scraping work; at the same time, when the land leveling block is used to loosen the soil and move forward, the fertilizer and other materials in the storage box at the upper end will extend the connecting pipe and fall, thereby realizing the synchronous operation of loosening the soil and fertilizing, and improving soil fertility. Subsequently, the rolling roller at the rear end will assist in pressing down and leveling the loosened and arched soil.
[0012] The present invention provides a deep tillage and fertilization machine, which has the following beneficial effects: The present invention provides a deep loosening and fertilizing land preparation machine. When the land preparation machine is in use, it only needs to move and pull to complete the automatic stirring function, that is, the automatic rotation of the spiral shaft is realized to stir the fertilizer in the bottom box, so as to prevent material blockage and ensure smooth fertilization. At the same time, the land preparation block at the lower end can effectively loosen the soil during the movement, improve soil permeability, and create good conditions for subsequent fertilization and plant growth. While preparing the land, the fertilizer in the storage box falls synchronously through the connecting pipe, so as to realize the efficient combination of loosening the soil and fertilizing, and improve soil fertility. The auxiliary scraping mechanism arranged at the front end of the land preparation block can clear away debris on the road ahead, so as to ensure that the land preparation and fertilization processes are not disturbed. At the same time, the rolling roller at the rear end helps to compact and level the loosened soil, so as to improve the ground quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the shaft side structure of the present invention; Figure 2 It is an axonometric schematic diagram of another perspective of the present invention; Figure 3 It is a schematic diagram of the local structure of the present invention; Figure 4 It is a schematic diagram of a partial top view of the structure of the present invention; Figure 5 It is a structural schematic diagram of the material storage box of the present invention; Figure 6 Schematic diagram of the top view of the bottom box of the present invention; Figure 7 This is another schematic top view of the bottom box of the present invention; Figure 8 It is a side view structural schematic diagram of the land preparation block of the present invention.
[0014] Among them, 1. Storage box; 2. Feeding port; 3. Side plate; 4. Drive wheel No. 1; 5. Drive shaft No. 1; 6. Fixed plate No. 1; 7. Mounting plate; 8. Travel assembly; 801. Travel wheel; 802. Linkage wheel; 9. Connecting plate No. 1; 10. Inner plate No. 1; 11. Socket No. 1; 12. Pin No. 1; 13. Rolling roller; 14. Fixed plate No. 2; 15. Bracket; 16. Bottom box; 17. Pin No. 2; 18. Socket No. 2; 19. Auxiliary scraper Separation mechanism; 1901, scraper plate; 1902, guide arc plate; 1903, guide roller; 1904, No. 2 inner plate; 1905, No. 2 connecting plate; 20, No. 1 transmission belt; 21, support plate; 22, No. 2 transmission shaft; 23, No. 2 transmission wheel; 24, No. 2 transmission belt; 25, No. 1 fixed seat; 26, leveling block; 2601, connecting pipe; 2602, block body; 27, No. 2 fixed seat; 28, connecting port; 29, screw shaft. DETAILED DESCRIPTION
[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0016] Example: like Figure 1-8 As shown, the embodiment of the present invention provides a deep tillage machine for fertilizing and soil preparation, including a bracket 15, side panels 3 are fixedly provided on both sides of the upper end surface of the bracket 15, a storage box 1 is fixedly provided on the upper end surfaces of the two side panels 3, a feeding port 2 is provided on both sides of the upper end surface of the storage box 1, two discharge ports are provided at the lower end of the storage box 1, and the two discharge ports are respectively located at the openings at the upper ends of the two bottom boxes 16, bottom boxes 16 are fixedly provided at the front and rear ends of the lower end of the storage box 1, and a plurality of communication ports 28 are provided on the lower end surfaces of the two bottom boxes 16, and the plurality of communication ports 28 are respectively connected to a plurality of communication pipes 2601 correspondingly; A No. 1 transmission shaft 5 and a No. 2 transmission shaft 22 are rotatably provided on both sides of the outer walls of the two bottom boxes 16, and a screw shaft 29 is fixedly provided on the opposite ends of the two No. 1 transmission shafts 5 and the opposite ends of the two No. 2 transmission shafts 22. Support plates 21 are fixedly provided on the outer walls of both sides of the bracket 15. The front ends of the two support plates 21 are fixedly provided with a No. 1 fixing plate 6 and the rear ends of the two support plates 21 are fixedly provided with a No. 2 fixing plate 14. A plurality of No. 1 fixing seats 25 are fixedly provided on the side of the lower end surface of the bracket 15 close to the No. 2 fixing plate 14, and a No. 2 fixing seat 27 is fixedly provided on the side of the lower end surface of the bracket 15 close to the No. 1 fixing plate 6. A whole block 26 is fixedly provided on the lower end surfaces of the plurality of No. 1 fixing seats 25 and the No. 2 fixing seats 27. The whole block 26 includes a block body 2602, and two connecting pipes 2601 are fixedly provided on the inner side of the block body 2602, and the end of the connecting pipe 2601 away from the block body 2602 is fixedly provided on the lower end surface of the bottom box 16; Specifically, during use, fertilizer can be placed in the storage box 1 as needed, and the fertilizer is poured into the interior along the feed port 2, and the fertilizer placed in the storage box 1 is collected into the bottom box 16 along the discharge port at the lower end. Since the connecting port 28 at the lower end of the bottom box 16 is connected to the connecting pipe 2601, and a valve is provided on the connecting pipe 2601, when it is necessary to loosen the soil and apply fertilizer, the land preparation machine is driven to move by utilizing traction equipment. At this time, the multiple land preparation blocks 26 at the lower end will loosen the soil and move the land. At this time, the valve at the connecting pipe 2601 at the upper end is opened, and the fertilizer inside the bottom box 16 is injected into the soil reclaimed by the block body 2602 along the connecting pipe 2601 to complete the fertilization, so as to enhance the soil fertility.
[0017] Reference Figures 1-8 , an auxiliary scraping mechanism 19 is installed on the lower end surface of the No. 1 fixed plate 6, and a No. 1 connecting plate 9 is fixed on both sides of the lower end surface of the No. 2 fixed plate 14. A No. 1 inner plate 10 is slidably embedded in the two No. 1 connecting plates 9, and a rolling roller 13 is rotatably provided on the two No. 1 inner plates 10 at one end; a plurality of No. 1 plug holes 11 are provided on the front end surfaces of the two No. 1 connecting plates 9, and a No. 1 sliding groove is provided on the side of the two No. 1 connecting plates 9 close to the rolling roller 13. The two ends of the rolling roller 13 are respectively located in the two No. 1 sliding grooves, and a No. 1 fixing groove is provided on the front end of the two No. 1 inner plates 10. A No. 1 latch 12 is embedded in the No. 1 plug hole 11 and the No. 1 latch 12 is embedded in the No. 1 fixing groove to complete the clamping and fixing of the No. 1 inner plate 10; Specifically, when in use, according to the required height, the No. 1 pin 12 is first pulled out from the No. 1 socket 11, and then the No. 1 inner plate 10 located inside the No. 1 connecting plate 9 is pulled downward. At this time, the rolling roller 13 on one side of the No. 1 inner plate 10 moves downward, and the No. 1 sliding grooves on both sides of the rolling roller 13 move up and down. After the height adjustment of the rolling roller 13 is completed, the No. 1 pin 12 is inserted into the corresponding No. 1 socket 11 to complete the auxiliary fixing effect of the No. 1 inner plate 10; Reference Figures 1-8 The auxiliary scraping mechanism 19 includes a scraping plate 1901, and a No. 2 inner plate 1904 is fixedly provided on both sides of the upper end surface of the scraping plate 1901. The outer sides of the two No. 2 inner plates 1904 are slidably sleeved with a No. 2 connecting plate 1905, and the upper end of the No. 2 connecting plate 1905 is fixedly connected to the lower end of the No. 1 fixed plate 6. A guide arc plate 1902 is fixedly provided on the opposite side of the two No. 2 connecting plates 1905, and a guide roller 1903 is rotatably provided on the opposite side of the two No. 2 inner plates 1904. The guide roller 1903 is located between the guide arc plate 1902 and the scraping plate 1901; Specifically, when the land leveling machine is towed by a traction device during use, the land leveling block 26 at the lower end will loosen the soil, and since the auxiliary scraping mechanism 19 is located at the front end of the travel route, that is, at the front end of the land leveling block 26, the scraping plate 1901 at the front end will push the debris on the road ahead, including straw, etc., during the travel process. During the pushing process, due to continuous accumulation, the debris first contacts the guide roller 1903 and plays an auxiliary rolling pushing effect during the upward movement, and the guide arc plate 1902 at the upper end provides the pushing direction, so that the debris moves forward along the guide roller 1903 and the guide arc plate 1902, thereby ensuring the smooth progress of the auxiliary scraping work.
[0018] The rear end faces of the two No. 2 connecting plates 1905 are each provided with a plurality of No. 2 sockets 18, and the two No. 2 connecting plates 1905 are provided with a No. 2 sliding groove on one side close to the guide roller 1903. The two ends of the guide roller 1903 are respectively located in the two No. 2 sliding grooves, and the front ends of the two No. 2 inner plates 1904 are each provided with a No. 2 fixing groove, and the No. 2 sockets 18 are embedded with No. 2 pins 17, and the No. 2 pins 17 are embedded in the No. 2 fixing grooves to complete the clamping and fixing of the No. 2 inner plates 1904, that is, when in use, the height of the scraping plate 1901 at the lower end can be adjusted by inserting the No. 2 pins 17 into the No. 2 sockets 18 at different positions.
[0019] Reference Figure 1 and Figure 2, the two No. 1 transmission shafts 5 are fixedly provided with a No. 1 transmission wheel 4 at one end away from the bottom box 16, and the two No. 2 transmission shafts 22 are fixedly sleeved with two No. 2 transmission wheels 23 at one end away from the bottom box 16. The No. 2 transmission wheel 23 on the No. 2 transmission shaft 22 on the same side is connected to the No. 1 transmission wheel 4 on the No. 1 transmission shaft 5 on the same side by a No. 2 transmission belt 24. The lower end surfaces of the two support plates 21 are fixedly provided with mounting plates 7, and the opposite sides of the two mounting plates 7 are rotatably provided with walking components 8. The walking component 8 includes a walking wheel 801, which is rotatably set on the mounting plate 7 through a walking shaft, wherein the end of the walking shaft away from the mounting plate 7 is fixedly sleeved with a linkage wheel 802, and the linkage wheel 802 on the same side is connected to the other No. 2 transmission wheel 23 on the No. 2 transmission shaft 22 on the same side by a No. 1 transmission belt 20. Specifically, when in use, the traction equipment is used to drive the land leveling machine to move, and the walking wheel 801 at the lower end moves during the movement of the walking wheel 801, and the interlocking wheel 802 moves during the movement. The interlocking wheel 802 drives the No. 2 transmission shaft 22 to rotate using the No. 1 transmission belt 20, and then the No. 2 transmission wheel 23 on the No. 2 transmission shaft 22 drives the No. 1 transmission wheel 4 to rotate using the No. 2 transmission belt 24, so as to realize the rotation of the No. 1 transmission shaft 5. When the No. 1 transmission shaft 5 and the No. 2 transmission shaft 22 rotate, the inner connected spiral shaft 29 will be driven to rotate, thereby completing the stirring of the fertilizer principle inside the bottom box 16 and reducing blockage accidents.
[0020] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A deep tillage and fertilization machine, comprising a support (15), characterized in that: Side plates (3) are fixedly arranged on both sides of the upper end surface of the bracket (15), and a material storage box (1) is fixedly arranged on the upper end surfaces of the two side plates (3). A bottom box (16) is fixedly arranged at the front and rear ends of the lower end of the material storage box (1). A first transmission shaft (5) and a second transmission shaft (22) are rotatably arranged on both sides of the outer walls of the two bottom boxes (16). The opposite ends of the two first transmission shafts (5) and the opposite ends of the two second transmission shafts (22) are fixedly arranged with a spiral shaft (29). The outer walls of both sides of the bracket (15) are fixedly arranged with A support plate (21) is provided, a first fixing plate (6) is fixedly provided at the front ends of the two support plates (21), and a second fixing plate (14) is fixedly provided at the rear ends of the two support plates (21), a plurality of first fixing seats (25) are fixedly provided on a side of the lower end surface of the support (15) close to the second fixing plate (14), a second fixing seat (27) is fixedly provided on a side of the lower end surface of the support (15) close to the first fixing plate (6), and a land leveling block (26) is fixedly provided on the lower end surfaces of the plurality of first fixing seats (25) and the second fixing seats (27); An auxiliary scraping mechanism (19) is installed on the lower end surface of the No. 1 fixed plate (6); a No. 1 connecting plate (9) is fixedly provided on both sides of the lower end surface of the No. 2 fixed plate (14); a No. 1 inner plate (10) is slidably embedded in the two No. 1 connecting plates (9); and a rolling roller (13) is rotatably provided on the two No. 1 inner plates (10) at one end thereof. The auxiliary scraping mechanism (19) comprises a scraping plate (1901), wherein a second inner plate (1904) is fixedly arranged on both sides of the upper end surface of the scraping plate (1901), a second connecting plate (1905) is slidably sleeved on the outer sides of the two second inner plates (1904), and the upper end of the second connecting plate (1905) is fixedly connected to the lower end of the first fixed plate (6), a guide arc plate (1902) is fixedly arranged on the opposite side of the two second connecting plates (1905), and a guide roller (1903) is rotatably arranged on the opposite side of the two second inner plates (1904), and the guide roller (1903) is located between the guide arc plate (1902) and the scraping plate (1901); The land preparation block (26) comprises a block body (2602), two connecting pipes (2601) are fixedly arranged inside the block body (2602), and one end of the connecting pipe (2601) away from the block body (2602) is fixedly arranged on the lower end surface of the bottom box (16).
2. A deep tillage and fertilization machine according to claim 1, characterized in that: The upper end surface of the material storage box (1) is provided with material feed ports (2) on both sides, and the lower end of the material storage box (1) is provided with two material discharge ports, and the two material discharge ports are respectively located at the openings at the upper ends of the two bottom boxes (16).
3. A deep tillage and fertilization machine according to claim 1, characterized in that: The ends of the two No. 1 transmission shafts (5) away from the bottom box (16) are both fixedly provided with a No. 1 transmission wheel (4), and the ends of the two No. 2 transmission shafts (22) away from the bottom box (16) are both fixedly sleeved with two No. 2 transmission wheels (23), and a No. 2 transmission wheel (23) on the No. 2 transmission shaft (22) on the same side is connected to the No. 1 transmission wheel (4) on the No. 1 transmission shaft (5) on the same side via a No. 2 transmission belt (24), and the lower end surfaces of the two support plates (21) are both fixedly provided with a mounting plate (7), and the opposite side of the two mounting plates (7) is provided with a walking assembly (8) rotatably.
4. A deep tillage and fertilization machine according to claim 3, characterized in that: The walking assembly (8) comprises a walking wheel (801), the walking wheel (801) being rotatably arranged on the mounting plate (7) via a walking shaft, wherein a linkage wheel (802) is fixedly sleeved on one end of the walking shaft away from the mounting plate (7), and the linkage wheel (802) located on the same side is connected to another No. 2 transmission wheel (23) on the No. 2 transmission shaft (22) on the same side via a No. 1 transmission belt (20).
5. The deep tillage and fertilization machine according to claim 1, characterized in that: The lower end surfaces of the two bottom boxes (16) are each provided with a plurality of communication openings (28), and the plurality of communication openings (28) are respectively connected to a plurality of communication pipes (2601) correspondingly.
6. The deep tillage and fertilization machine according to claim 1, characterized in that: The front end surfaces of the two No. 1 connecting plates (9) are each provided with a plurality of No. 1 insertion holes (11); a No. 1 sliding groove is provided on one side of the two No. 1 connecting plates (9) close to the rolling roller (13); the two ends of the rolling roller (13) are respectively located in the two No. 1 sliding grooves; the front ends of the two No. 1 inner plates (10) are each provided with a No. 1 fixing groove; a No. 1 plug pin (12) is embedded in the No. 1 insertion hole (11) and the No. 1 plug pin (12) is embedded in the No. 1 fixing groove to complete the clamping and fixing of the No. 1 inner plate (10).
7. The deep tillage and fertilization machine according to claim 1, characterized in that: The rear end surfaces of the two No. 2 connecting plates (1905) are each provided with a plurality of No. 2 insertion holes (18); a No. 2 sliding groove is provided on one side of the two No. 2 connecting plates (1905) close to the guide roller (1903); both ends of the guide roller (1903) are respectively located in the two No. 2 sliding grooves; the front ends of the two No. 2 inner plates (1904) are each provided with a No. 2 fixing groove; a No. 2 plug pin (17) is embedded in the No. 2 insertion hole (18) and the No. 2 plug pin (17) is embedded in the No. 2 fixing groove to complete the clamping and fixing of the No. 2 inner plate (1904).
Citation Information
Patent Citations
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