Introduction and cultivation device of fruit-bearing Korean pine based on Maowusu sandy land

Abstract

The invention relates to the technical field related to the introduction and cultivation of Korean pine, and discloses an introduction and cultivation device for Korean pine for fruit based on Maowusu sandy land and a cultivation process thereof. By utilizing a special introduction and cultivation device, a cutting is driven to rotate and intermittently enter a nutrient solution, thereby ensuring that the cutting can be fully infiltrated, avoiding the problem of hypoxia caused by the cutting being immersed in water for a long time, and improving the rooting speed of the cutting. At the same time, the root system grown in the air is also superior to the root system of pure hydroponics, and is easier to transfer to soil and transplant. At the same time, the lower end of the cutting is sealed with wax, and the upper end is pressurized to pass the nutrient solution, so that the cutting can absorb the nutrient solution from the upper end, and the part intermittently immersed in the nutrient solution from the lower end takes root, so that the rooting part of the cutting is not easily infected by harmful bacteria, and the risk of cutting rot and black stem is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of introduction and cultivation of Korean pine, in particular to an introduction and cultivation device for Korean pine for fruit use based on Maowusu sandy land and a cultivation process thereof. Background Art

[0002] Korean pine, also known as fruit pine and Korean pine, is an evergreen five-needle pine species of the Pinaceae family. It is a good timber species for industrial and domestic use. Korean pine is strong and abundant, and because Korean pine seeds are rich in oil, large in size, taste good when eaten, and have certain therapeutic effects, there is a large social demand for it at home and abroad, and it has high economic value. Therefore, in the national economic construction, Korean pine not only provides timber and protects the ecology, but is also an important economic tree species. However, due to the wide range of uses of Korean pine wood, it has been over-logged, and natural Korean pine forests have been almost completely logged. The germination rate of Korean pine seeds is relatively low, which makes it difficult to propagate Korean pine. Cutting propagation technology is an effective way to solve this problem.

[0003] There are two methods of cutting cultivation: soil cultivation and hydroponics. Soil cultivation is to insert the cuttings into the soil, using the nutrients and water in the soil to promote the rooting of the cuttings. Hydroponics is to soak the cuttings directly in water, using the nutrients and oxygen in the water to promote the rooting of the cuttings. The difference between hydroponics and soil cultivation is that hydroponics directly roots from the buds and other parts that are in contact with water, and the rooting is faster, while soil cultivation requires callus tissue to be generated at the wound first, and then the root system is differentiated from the callus tissue. Therefore, hydroponic cuttings can expand the population faster, but the specialized roots generated by hydroponics are not easy to survive when transferred to the soil and transplanted to the nursery.

[0004] In addition, during hydroponics, the wounds of the branches are immersed in water for a long time, and it is not easy to generate callus tissue in hydroponics, so the wounds are easily invaded by harmful bacteria, which in turn causes the cuttings to rot and blacken the stems. However, the cuttings need fresh wounds to absorb water and nutrients from the substrate, so the risk of infection by harmful bacteria is difficult to avoid. Summary of the invention

[0005] The purpose of the present invention is to provide a fruit pine introduction and cultivation device based on Maowusu sandy land and its cultivation process, so as to solve the problem that the current traditional introduction and cultivation method is difficult to avoid rot and black stems caused by harmful bacteria infection as mentioned in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical scheme: a fruit-bearing Korean pine introduction and cultivation device based on Maowusu sandy land, comprising a culture tank, a protective cover rotatably connected to the top of the culture tank through a hinge, a circulating water immersion pipe rotatably connected to the culture tank through a bearing, one end of the circulating water immersion pipe is fixedly connected to a servo motor, the servo motor is fixedly installed at one end of the culture tank, a cutting fixing pipe is fixedly connected to the circulating water immersion pipe, a sealing rubber plug is fixedly connected to the cutting fixing pipe, a cutting is inserted into the sealing rubber plug, and a cleaning nozzle is also provided on the circulating water immersion pipe;

[0007] One end of the circulating immersion pipe is fixedly connected to a reducing connecting pipe, the reducing connecting pipe is fixedly connected to a first gear, the first gear is meshed with a second gear, a third gear is arranged on one side of the second gear, the second gear and the third gear are connected in a one-way transmission through a ratchet drive mechanism, a piston cylinder is arranged on one side of the third gear, a reciprocating screw rod passes through the right side of the piston cylinder, the reciprocating screw rod is fixedly connected to the third gear, the reciprocating screw rod is connected in transmission with a reciprocating piston, a filter cylinder is arranged on the left side of the piston cylinder, a spiral scraper is arranged in the filter cylinder, and the spiral The scraper blade is fixedly connected to the second gear through a scraper connecting rod, and the scraper connecting rod passes through the third gear. A first water pumping pipe is fixedly connected to the lower middle section of the piston cylinder, and the other end of the first water pumping pipe is connected to the bottom of the culture tank. A first one-way valve is arranged in the first water pumping pipe. The upper left side of the piston cylinder is connected to the variable diameter connecting pipe through a low-speed rotating connecting valve, and the upper right end of the piston cylinder is connected to the variable diameter connecting pipe through a high-speed rotating connecting valve. A second water pumping pipe is connected to the lower right end of the piston cylinder, and the second water pumping pipe is connected to a faucet or a water pump to receive external cleaning water.

[0008] Furthermore, the opening direction of the strip fixing tube is consistent with the tangent direction of the cross-sectional circle of the circulating immersion pipe at the corresponding position, so that when the circulating immersion pipe rotates, there is an angle between the direction of the centrifugal force and the direction of the strip insertion, which can prevent the strip from being thrown out. A through hole is opened in the sealing rubber plug, and the through hole is closed under the action of its own elastic force when the strip is not inserted. When the strip is inserted, one end of the strip is tightly wrapped under the action of the elastic force, which can ensure the sealing of the strip and the strip fixing tube, and also ensure the stability of the strip insertion.

[0009] Furthermore, the cutting fixing tube and the cleaning nozzle are distributed in a ring shape around the outer side of the circulating immersion pipe, and the cutting fixing tube and the cleaning nozzle are distributed alternately with each other, so that each cutting can be fully rinsed and cleaned. At the same time, when the circulating immersion pipe rotates, the cuttings fixed in a ring shape can be immersed in the nutrient solution in turn and leave again.

[0010] Furthermore, the ratchet drive mechanism includes a limit column, the right side of the third gear is fixedly connected to the limit column, the outer sleeve of the limit column is provided with a first one-way ratchet disk, the left side of the second gear is fixedly connected to a second one-way ratchet disk, a pressure spring is provided on the left side of the first one-way ratchet disk, the pressure spring is located between the third gear and the first one-way ratchet disk, and a rotation limit strip is processed on the outer side of the limit column, the rotation limit strip is engaged with the first one-way ratchet disk, so that the second gear can drive the third gear to rotate in one direction, and when the rotation speed of the third gear is faster than that of the second gear, the second gear cannot be driven to rotate in reverse.

[0011] Furthermore, both ends of the filter cartridge are open, and both ends of the filter cartridge are tightly fitted with the inner wall of the piston cylinder, and the diameter of the middle section of the filter cartridge is smaller than the diameter of the piston cylinder. In this way, when the nutrient solution containing impurities flows through the filter cartridge to the low-speed rotating connecting valve, the impurities will be trapped inside the filter cartridge, thereby preventing contamination of the nutrient solution or clogging of the cleaning nozzle.

[0012] Furthermore, a tensioning sealing cover is provided at the opening at the left end of the piston cylinder, and a tensioning rod is fixedly connected to the right side of the tensioning sealing cover, the tensioning rod is inserted into the left end of the scraper connecting rod, one end of the tensioning rod is fixedly connected to the tensioning sealing cover, and the other end of the tensioning rod is fixedly connected to a spring stopper, and a tensioning spring is sleeved on the outer side of the tensioning rod, and the tensioning spring is located between the end contraction of the scraper connecting rod and the spring stopper. The tensioning spring tightens the tensioning sealing cover to the right, so that the tensioning sealing cover blocks the opening at the left end of the piston cylinder. In this way, when the inserted strip is cleaned, the low-speed rotation connecting valve is closed, and the pressure on the left side of the piston cylinder cannot be released, so the tensioning sealing cover will be pushed open, so that the cleaning water can flush out the filter residue accumulated at the tensioning sealing cover on the left side of the piston cylinder to avoid clogging the filter cylinder.

[0013] Furthermore, the low-speed rotating connecting valve includes a first rotating sealing disk, which is rotatably connected to the variable diameter connecting tube through a mechanical seal, the lower end of the first rotating sealing disk is connected to the piston cylinder through a first drain pipe, a second one-way valve is arranged in the first drain pipe, four first rotating tubes are fixedly connected around the variable diameter connecting tube, a first sliding sleeve is slidably connected in the first rotating tube, a first spring is arranged on the outside of the first sliding sleeve, a first connecting hole is opened on the outer wall of the first rotating tube, and the first connecting hole is opened at the first spring. In this way, when the rotating speed of the variable diameter connecting tube is low, that is, 5r / min, the first sliding sleeve will be located close to one end of the variable diameter connecting tube under the pressure of the first spring, and then the first connecting hole remains open for nutrient solution to pass through. Once the rotating speed reaches 100r / min, the centrifugal force of the first sliding sleeve will compress the first spring to slide outward to block the first connecting hole, thereby achieving the effect of connection at low speed and closing at high speed.

[0014] Furthermore, the high-speed rotating connecting valve includes a second rotating sealing disk, which is rotatably connected to the variable diameter connecting tube through a mechanical seal, and the lower end of the second rotating sealing disk is connected to the piston cylinder through a second drain pipe, and a third one-way valve is arranged in the second drain pipe, and four second rotating tubes are fixedly connected around the variable diameter connecting tube, and a second sliding sleeve is slidably connected in the second rotating tube, and a second spring is arranged on the outside of the second sliding sleeve, and a second connecting hole is opened on the outer wall of the second rotating tube, and the second connecting hole is opened at the second sliding sleeve, which is similar to the structure of the low-speed rotating connecting valve, but the second connecting hole of the high-speed rotating connecting valve is located at the second sliding sleeve, so that when the rotation speed is low, the second sliding sleeve will close the second connecting hole, and when the rotation speed is high, the second connecting hole will be opened.

[0015] Furthermore, a fourth gear is provided on the left side of the first gear, the fourth gear comprising a rotating disk, the rotating disk being fixedly connected to the variable diameter connecting tube, the outer side of the rotating disk being rotatably connected to a rotating gear ring via a bearing, the rotating gear ring (2302) and the third gear (11) being meshed with each other, a telescopic groove is provided in the rotating disk, a metal pin is slidably connected in the telescopic groove, a pin hole is provided on the inner side of the rotating gear ring, a tension spring is fixedly connected to the inner side of the metal pin, one end of the tension spring is fixedly connected to an adjustment block, the rotating disk is provided with an adjustment groove, the adjustment block is fixedly connected to an adjustment bolt via a thread, the adjustment bolt passes through the adjustment groove, and can be adjusted along the adjustment bolt. The position of the adjusting block is moved along the adjusting groove, and then the position of the metal pin is adjusted. In this way, when the rotating speed of the variable diameter connecting pipe is low, the metal pin is adjusted to retract into the telescopic groove under the pull of the tension spring, and the rotating disk and the rotating gear ring rotate with each other. The rotating speed of the rotating disk is consistent with that of the first gear, and the rotating speed of the third gear is consistent with that of the second gear. At this time, the rotating gear ring is driven by the third gear, and the rotating speed of the rotating disk is greater than that of the rotating gear ring. When the rotating speed of the variable diameter connecting pipe is high, the metal pin is embedded in the pin hole under the action of centrifugal force, so that the rotating disk and the first gear are engaged with each other, so that the rotating gear ring is driven by the rotating disk, and the third gear is in turn driven by the rotating gear ring, and the rotating speed of the third gear will be greater than that of the second gear.

[0016] The present invention provides another technical solution: a fruit-bearing Korean pine introduction and cultivation process based on Maowusu sandy land, comprising the following steps:

[0017] S1. Introduction of cuttings: Select healthy and strong branches with full buds and no pests and diseases from the Korean pine mother tree, and cut a section of the branch containing the buds. Since the rooting of the cuttings in this scheme does not need to rely entirely on the nutrients of the branch itself, there is no need to cut longer branches. A cutting length of about 10-15 cm can meet the needs. This way, more usable cuttings can be cut. When cutting, use sharp scissors or pruning knives to ensure a smooth incision and reduce damage to the cutting tissue, which is conducive to wound healing and the secretion of rooting hormones.

[0018] S2. Pretreatment: The lower end of the cuttings transported to the cultivation site over a long distance is preliminarily rinsed and cleaned to remove the soil and branches and leaves adhering to the cuttings. Then, sharp scissors or pruning knives are used to cut fresh wounds at the upper and lower ends of the cuttings. The upper end of the cuttings is cut obliquely, and the lower end of the cuttings is cut straightly. After the cutting is completed, the upper end of the cuttings is inserted into the cutting fixing tube on the circulating immersion pipe, so that the upper end opening of the cuttings passes through the sealing rubber plug. The cuttings are retained about 10 cm outside the cutting fixing tube to ensure that the cuttings will not collide with the culture tank when the circulating immersion pipe rotates. Subsequently, the second water pump is connected to the faucet or water pump to supply cleaning water, and then the servo motor is started to drive the circulating immersion pipe to rotate at a speed of 100r / min, so that the cuttings are finely rinsed and centrifuged through the jet sprayed by the cleaning nozzle, and the bud points and wound positions on the outer surface of the cuttings are cleaned. At the same time, the pathogens that may invade the wound at the lower end of the cuttings through the fiber tube are centrifuged and removed. After cleaning is completed, the cleaning water is drained.

[0019] S3. Wax sealing: immerse the lower end of the cleaned cuttings into melted wax oil to a depth of 1-1.5cm, and then wait for the wax oil to solidify. Wax sealing is to prevent and reduce the invasion of pathogens. Because hydroponic cuttings do not first generate callus tissue and then differentiate rhizomes from the callus tissue like soil-cultured cuttings, but directly take root from buds or fiber tubes. Therefore, wax sealing will not affect the normal rooting of the cuttings. On the contrary, wax sealing is conducive to the accumulation of rooting hormones and the initiation of the rooting process.

[0020] S4. Immersion culture: After the wax seal is completed, inject nutrient solution into the culture tank, adjust the servo motor, and drive the circulating immersion pipe to rotate at a speed of 5r / min, so that the cuttings are immersed in the culture solution in turn, and then leave the culture solution. Use the intermittent immersion culture method to promote rapid rooting of the cuttings. At the same time, use the circulating immersion pipe to pressurize and transport nutrient solution to the upper end of the cuttings to make up for the wax seal at the lower end of the cuttings, which cannot absorb water and nutrients. After dense roots grow on the cuttings, take them out of the culture tank and transplant them to the forest land.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The invention is based on the fruit-bearing Korean pine introduction and cultivation process in Maowusu sandy land. By utilizing a special introduction and cultivation device, the cuttings are driven to rotate and intermittently enter the nutrient solution, thereby ensuring that the cuttings can be fully infiltrated and avoiding the problem of hypoxia caused by the cuttings being immersed in water for a long time, and also improving the rooting speed of the cuttings. At the same time, the root system grown in the air is also better than the root system of pure hydroponics, and is easier to transfer to soil and transplant. At the same time, the lower end of the cutting is sealed with wax and the upper end is pressurized to pass the nutrient solution, so that the cuttings can absorb the nutrient solution from the upper end, and the part intermittently immersed in the nutrient solution from the lower end takes root, so that the rooting part of the cuttings is not easily infected by harmful bacteria, and the risk of cutting rot and black stem is reduced.

[0023] 2. The present invention is based on the fruit-bearing Korean pine introduction and cultivation process in Maowusu sandy land. By utilizing the centrifugal effect generated when the circulating immersion pipe rotates and the liquid pressure at the upper end of the cutting, the wound at the lower end of the cutting, which is easily invaded by the bacteria, is cleaned and removed, thereby further reducing the risk. At the same time, nutrients can also be enriched at the lower end of the lower end of the cutting, which is conducive to rooting.

[0024] 3. The fruit-bearing Korean pine introduction and cultivation device of the present invention is based on the Maowusu sandy land. Through the low-speed rotating connecting valve and the high-speed rotating connecting valve, the rotation speed difference of the circulating immersion pipe in the cutting cleaning stage and the cultivation stage is utilized to switch between the external circulation of the cleaning water and the internal circulation of the nutrient solution. When the circulating immersion pipe rotates at a high speed, the low-speed rotating connecting valve is closed and the high-speed rotating connecting valve is opened, so that the reciprocating piston will pump the external cleaning water into the circulating immersion pipe and spray it out from the cleaning nozzle at a high speed to clean the cuttings and the inner wall of the cultivation tank. At the same time, the fourth gear and the third gear also switch the driving mode under the action of centrifugal force, so as to increase the transmission ratio of the reciprocating screw, improve the moving speed of the reciprocating piston, and then increase the injection pressure of the cleaning nozzle, and improve the flushing effect. In addition, when the circulating immersion pipe rotates at a low speed for cultivation, the high-speed rotating connecting valve is closed and the low-speed rotating connecting valve is opened, so as to realize the internal circulation of the nutrient solution.

[0025] 4. The fruit pine introduction and cultivation device of the present invention is based on the Maowusu sandy land. Through the design of the filter cylinder and the tightening sealing cover, when the nutrient solution circulates, the filter cylinder can filter the nutrient solution to remove impurities, so as to prevent the impurities from contaminating the nutrient solution and clogging the cleaning nozzle. At the same time, the spiral scraper rotates to push the filter residue on the inner wall of the filter cylinder to the left side to the inside of the tightening sealing cover. When cleaning is performed, the connecting valve is rotated at a low speed to be closed, and the pressure on the left side of the piston cylinder has nowhere to be released, so the tightening sealing cover will be pushed open. At this time, the cleaning water will clean the filter cylinder and flush out the filter residue together. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the cultivation device of the present invention;

[0027] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0028] Figure 3 This is a schematic diagram of the structure of the insert fixing tube of the present invention;

[0029] Figure 4 It is a schematic diagram of the combined structure of the piston cylinder, the low-speed rotating connecting valve, the high-speed rotating connecting valve, the first gear and the second gear of the present invention;

[0030] Figure 5 is a schematic diagram of the longitudinal section structure of the fourth gear of the present invention;

[0031] Figure 6 is a schematic cross-sectional structure diagram of the fourth gear of the present invention;

[0032] Figure 7 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0033] Figure 8 It is a schematic diagram of the structure of the ratchet drive mechanism of the present invention;

[0034] Fig. 9 This is a schematic diagram of the structure of the low-speed rotating connecting valve of the present invention;

[0035] Fig.10 It is a schematic diagram of the structure of the high-speed rotating connecting valve of the present invention.

[0036] Numbers in the figure: 1, culture tank; 2, protective cover; 3, circulating immersion pipe; 301, servo motor; 4, cutting strip fixing pipe; 5, sealing rubber plug; 6, cutting strip; 7, cleaning nozzle; 8, variable diameter connecting pipe; 9, first gear; 10, second gear; 11, third gear; 12, ratchet drive mechanism; 1201, limit column; 1202, first one-way ratchet disk; 1203, second one-way ratchet disk; 1204, pressure spring; 1205, rotation limit strip; 13, piston cylinder; 14, reciprocating screw rod; 15, reciprocating piston; 16, filter cartridge; 17, spiral scraper; 18, scraper connecting rod; 19, first pumping pipe; 1901, first one-way valve; 20, low-speed rotating connecting valve; 2001, first rotating sealing disk; 2002, first drain pipe; 2003, second one-way valve ; 2004, the first rotating tube; 2005, the first sliding sleeve; 2006, the first spring; 2007, the first connecting hole; 21, the high-speed rotating connecting valve; 2101, the second rotating sealing disk; 2102, the second drain pipe; 2103, the third one-way valve; 2104, the second rotating tube; 2105, the second sliding sleeve; 2106, the second spring; 2107, the second connecting hole; 22, the second pumping pipe; 23, the fourth gear; 2301, the rotating disk; 2302, the rotating gear ring; 2303, the telescopic groove; 2304, the metal pin; 2305, the pin hole; 2306, the tension spring; 2307, the adjusting block; 2308, the adjusting groove; 2309, the adjusting bolt; 24, the tightening sealing cover; 2401, the tightening rod; 2402, the spring stopper; 2403, the tightening spring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0038] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0039] like Figure 1-Figure 10 As shown, a fruit-bearing Korean pine introduction and cultivation device based on Maowusu sandy land includes a culture tank 1, a protective cover 2 is rotatably connected to the top of the culture tank 1 through a hinge, a circulating water immersion pipe 3 is rotatably connected to the inside of the culture tank 1 through a bearing, a servo motor 301 is fixedly connected to one end of the circulation water immersion pipe 3, and the servo motor 301 is fixedly installed at one end of the culture tank 1, a cutting fixing pipe 4 is fixedly connected to the circulation water immersion pipe 3, a sealing rubber plug 5 is fixedly connected to the inside of the cutting fixing pipe 4, and cuttings 6 are inserted into the sealing rubber plug 5, and a cleaning nozzle 7 is also provided on the circulation water immersion pipe 3, and the cutting fixing pipe 4 and the cleaning nozzle 7 are distributed in a ring shape around the outer side of the circulation water immersion pipe 3, and the cutting fixing pipe 4 and the cleaning nozzle 7 are staggered with each other, so that each cutting 6 can be fully rinsed and cleaned, and at the same time, when the circulation water immersion pipe 3 rotates, the cuttings 6 fixed in a ring shape can be immersed in the nutrient solution in turn and leave again.

[0040] The opening direction of the strip fixing tube 4 is consistent with the tangent direction of the cross-sectional circle of the circulating immersion pipe 3 at the corresponding position. In this way, when the circulating immersion pipe 3 rotates, there is an angle between the direction of the centrifugal force and the insertion direction of the strip 6, which can prevent the strip 6 from being thrown out. A through hole is opened in the sealing rubber plug 5, and the through hole is closed under the action of its own elastic force when the strip 6 is not inserted. When the strip 6 is inserted, one end of the strip 6 is tightly wrapped under the action of the elastic force, which can ensure the sealing of the strip 6 and the strip fixing tube 4, and also ensure the stability of the insertion of the strip 6.

[0041] One end of the circulating immersion pipe 3 is fixedly connected to a reducing connecting pipe 8, and a first gear 9 is fixedly connected to the reducing connecting pipe 8. The first gear 9 is meshed with a second gear 10, and a third gear 11 is arranged on one side of the second gear 10. The second gear 10 and the third gear 11 are connected in a one-way transmission through a ratchet drive mechanism 12. The ratchet drive mechanism 12 includes a limit column 1201, and the limit column 1201 is fixedly connected to the right side of the third gear 11. The outer sleeve of the limit column 1201 is provided with a first one-way ratchet disc 1202, and the left side of the second gear 10 is fixedly connected to the limit column 1201. It is connected to a second one-way ratchet disk 1203, and a pressure spring 1204 is arranged on the left side of the first one-way ratchet disk 1202, and the pressure spring 1204 is located between the third gear 11 and the first one-way ratchet disk 1202. A rotation limit strip 1205 is processed on the outer side of the limit column 1201, and the rotation limit strip 1205 and the first one-way ratchet disk 1202 are interlocked with each other, so that the second gear 10 can drive the third gear 11 to rotate in one direction, and when the rotation speed of the third gear 11 is faster than that of the second gear 10, the second gear 10 cannot be driven to rotate in the reverse direction.

[0042] A fourth gear 23 is arranged on the left side of the first gear 9, and the fourth gear 23 includes a rotating disk 2301, and the rotating disk 2301 is fixedly connected to the variable diameter connecting pipe 8. A rotating gear ring 2302 is rotatably connected to the outer side of the rotating disk 2301 through a bearing, and a telescopic groove 2303 is arranged in the rotating disk 2301, and a metal pin 2304 is slidably connected in the telescopic groove 2303. A pin hole 2305 is provided on the inner side of the rotating gear ring 2302, and a tension spring 2306 is fixedly connected to the inner side of the metal pin 2304, and an adjusting block 2307 is fixedly connected to one end of the tension spring 2306. An adjusting groove 2308 is provided on the rotating disk 2301, and an adjusting bolt 2309 is fixedly connected to the adjusting block 2307 through a thread, and the adjusting bolt 2309 passes through the adjusting groove 2308, and the position of the adjusting block 2307 can be moved along the adjusting groove 2308 by the adjusting bolt 2309, so as to adjust The position of the metal pin 2304 is adjusted so that when the speed of the variable diameter connecting tube 8 is low, the metal pin 2304 is adjusted to retract into the telescopic groove 2303 under the pull of the tension spring 2306, and the rotating disk 2301 and the rotating gear ring 2302 rotate with each other. The speed of the rotating disk 2301 is consistent with that of the first gear 9, and the speed of the third gear 11 is consistent with that of the second gear 10. At this time, the rotating gear ring 2302 is driven by the third gear 11, and the speed of the rotating disk 2301 is greater than that of the rotating gear ring 2302. When the speed of the variable diameter connecting tube 8 is high, the metal pin 2304 is embedded in the pin hole 2305 under the action of centrifugal force, so that the rotating disk 2301 and the first gear 9 are interlocked with each other, so that the rotating gear ring 2302 is driven by the rotating disk 2301, and the third gear 11 is in turn driven by the rotating gear ring 2302, and the speed of the third gear 11 will be greater than that of the second gear 10.

[0043] A piston cylinder 13 is provided on one side of the third gear 11, and a reciprocating screw 14 passes through the right side of the piston cylinder 13. The reciprocating screw 14 is fixedly connected to the third gear 11, and the reciprocating screw 14 is transmission-connected to the reciprocating piston 15. A filter cylinder 16 is provided on the left side of the piston cylinder 13, and both ends of the filter cylinder 16 are opened. Both ends of the filter cylinder 16 are tightly fitted with the inner wall of the piston cylinder 13, and the diameter of the middle section of the filter cylinder 16 is smaller than the diameter of the piston cylinder 13. In this way, when the nutrient solution containing impurities flows through the filter cylinder 16 to the low-speed rotating connecting valve 20, the impurities will be trapped inside the filter cylinder 16 to prevent the nutrient solution from being contaminated or clogging the cleaning nozzle 7. A spiral scraper 17 is provided in the filter cylinder 16, and the spiral scraper 17 is fixedly connected to the second gear 10 through a scraper connecting rod 18, and the scraper connecting rod 18 passes through the third gear 11.

[0044] A tensioning plugging cover 24 is provided at the opening of the left end of the piston cylinder 13, and a tensioning rod 2401 is fixedly connected to the right side of the tensioning plugging cover 24. The tensioning rod 2401 is inserted into the left end of the scraper connecting rod 18, and one end of the tensioning rod 2401 is fixedly connected to the tensioning plugging cover 24, and the other end of the tensioning rod 2401 is fixedly connected to a spring stopper 2402. A tensioning spring 2403 is sleeved on the outer side of the tensioning rod 2401, and the tensioning spring 2403 is located at the end of the scraper connecting rod 18. The tensioning spring 2403 tightens the tensioning sealing cover 24 to the right between the opening and the spring stopper 2402, so that the tensioning sealing cover 24 blocks the opening at the left end of the piston cylinder 13. In this way, when the insert 6 is cleaned, the connecting valve 20 is closed at a low speed, and the pressure on the left side of the piston cylinder 13 cannot be released, so the tensioning sealing cover 24 will be pushed open, so that the cleaning water can flush out the filter residue accumulated at the tensioning sealing cover 24 on the left side of the piston cylinder 13 to avoid clogging the filter cylinder 16.

[0045] like Fig. 9As shown, the low-speed rotating connecting valve 20 includes a first rotating sealing disk 2001, which is rotatably connected to the variable diameter connecting pipe 8 through a mechanical seal, and the lower end of the first rotating sealing disk 2001 is connected to the piston cylinder 13 through a first drain pipe 2002, and a second one-way valve 2003 is arranged in the first drain pipe 2002, and four first rotating tubes 2004 are fixedly connected around the variable diameter connecting pipe 8, and a first sliding sleeve 2005 is slidably connected in the first rotating tube 2004, and a first spring 2006 is arranged on the outer side of the first sliding sleeve 2005, and a first rotating tube 2004 is provided on the outer wall. A connecting hole 2007, the first connecting hole 2007 is opened at the first spring 2006, so that when the rotation speed of the variable diameter connecting tube 8 is low, that is, 5r / min, the first sliding sleeve 2005 will be located close to one end of the variable diameter connecting tube 8 under the pressure of the first spring 2006, and then the first connecting hole 2007 remains open for the nutrient solution to pass through. Once the rotation speed reaches 100r / min, the centrifugal force of the first sliding sleeve 2005 will compress the first spring 2006 to slide outward, thereby blocking the first connecting hole 2007, thereby achieving the effect of connecting at low rotation speed and closing at high rotation speed.

[0046] The high-speed rotating connecting valve 21 includes a second rotating sealing disk 2101, which is rotatably connected to the variable diameter connecting pipe 8 through a mechanical seal, and the lower end of the second rotating sealing disk 2101 is connected to the piston cylinder 13 through a second drain pipe 2102, and a third one-way valve 2103 is arranged in the second drain pipe 2102. Four second rotating pipes 2104 are fixedly connected around the variable diameter connecting pipe 8, and a second sliding sleeve 2105 is slidably connected in the second rotating pipe 2104. The second sliding sleeve 2105 is connected to the second rotating pipe 2104. A second spring 2106 is provided on the outside of 105, and a second connecting hole 2107 is opened on the outer wall of the second rotating tube 2104. The second connecting hole 2107 is opened at the second sliding sleeve 2105, which is similar to the structure of the low-speed rotating connecting valve 20, but the second connecting hole 2107 of the high-speed rotating connecting valve 21 is located at the second sliding sleeve 2105, so that when the rotation speed is low, the second sliding sleeve 2105 will close the second connecting hole 2107, and when the rotation speed is high, the second connecting hole 2107 will open.

[0047] A first water pumping pipe 19 is fixedly connected to the lower middle section of the piston cylinder 13, and the other end of the first water pumping pipe 19 is connected to the bottom of the culture tank 1. A first one-way valve 1901 is arranged in the first water pumping pipe 19. The upper left side of the piston cylinder 13 is connected to the variable diameter connecting pipe 8 through a low-speed rotating connecting valve 20, and the upper right end of the piston cylinder 13 is connected to the variable diameter connecting pipe 8 through a high-speed rotating connecting valve 21. A second water pumping pipe 22 is connected to the lower right end of the piston cylinder 13, and the second water pumping pipe 22 is connected to a faucet or a water pump to receive external cleaning water.

[0048] The introduction and cultivation technology of fruit-bearing Korean pine based on Maowusu sandy land includes the following steps:

[0049] 1. Introduction of cuttings 6: Select healthy and strong branches with full buds and no diseases or insect pests from the Korean pine mother tree, and cut a section of branches containing buds. Since the rooting of the cuttings 6 in this scheme does not need to rely entirely on the nutrients of the branches themselves, there is no need to cut longer branches. A cutting length of about 10-15 cm can meet the needs, so that more usable cuttings 6 can be cut out. When cutting, sharp scissors or pruning knives should be used to ensure a smooth incision, reduce damage to the cutting 6 tissue, and facilitate wound healing and the secretion of rooting hormones.

[0050] 2. Pretreatment: Preliminary rinse and clean the lower end of the cuttings 6 transported to the cultivation site over a long distance, remove the soil and branches and leaves adhering to the cuttings 6, and then use sharp scissors or pruning knives to cut fresh wounds at the upper and lower ends of the cuttings 6. The upper end of the cuttings 6 is cut obliquely, and the lower end of the cuttings 6 is cut straight. After the cutting is completed, the upper end of the cuttings 6 is inserted into the cutting fixing tube 4 on the circulating immersion pipe 3, so that the upper end opening of the cuttings 6 passes through the sealing rubber plug 5, and the cuttings 6 are kept about 10 cm outside the cutting fixing tube 4 to ensure circulating immersion. When the tube 3 rotates, the cutting 6 will not collide with the culture tank 1. Then, the second water pumping pipe 22 is connected to a faucet or a water pump to supply cleaning water, and then the servo motor 301 is started to drive the circulating immersion pipe 3 to rotate at a speed of 100r / min, so that the cutting 6 is finely rinsed and centrifuged through the jet sprayed by the cleaning nozzle 7, and the bud points and wound positions on the outer surface of the cutting 6 are cleaned. At the same time, the bacteria that may invade the wound at the lower end of the cutting 6 through the fiber tube are centrifuged and removed. After cleaning, the cleaning water is drained.

[0051] 3. Wax sealing: Immerse the lower end of the cleaned cuttings 6 into melted wax oil to a depth of 1-1.5 cm, and then wait for the wax oil to solidify. Wax sealing is to prevent and reduce the invasion of pathogens. Because hydroponic cuttings do not first generate callus tissue and then differentiate rhizomes from the callus tissue like soil-cultured cuttings, but directly take root from buds or fiber tubes, wax sealing will not affect the normal rooting of the cuttings 6. On the contrary, wax sealing is conducive to the accumulation of rooting hormones and the initiation of the rooting process.

[0052] 4. Immersion culture: After the wax seal is completed, nutrient solution is injected into the culture tank 1, and the servo motor 301 is adjusted to drive the circulating immersion pipe 3 to rotate at a speed of 5r / min, so that the cuttings 6 are immersed in the culture solution in turn, and then leave the culture solution. The intermittent immersion culture method is used to promote the rapid rooting of the cuttings 6. At the same time, the circulating immersion pipe 3 is used to pressurize and transport nutrient solution to the upper end of the cuttings 6 to make up for the wax seal at the lower end of the cuttings 6, which cannot absorb water and nutrients. After a dense root system grows on the cuttings 6, they are taken out of the culture tank 1 and transplanted to the forest land.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fruit-bearing Korean pine cultivation device based on Maowusu sandy land, characterized in that: The culture tank (1) comprises a culture tank (1), wherein a protective cover (2) is rotatably connected to the top of the culture tank (1) via a hinge, a circulating water immersion pipe (3) is rotatably connected to the inside of the culture tank (1) via a bearing, one end of the circulating water immersion pipe (3) is fixedly connected to a servo motor (301), the servo motor (301) is fixedly installed on one end of the culture tank (1), a cutting fixing pipe (4) is fixedly connected to the circulating water immersion pipe (3), a sealing rubber plug (5) is fixedly connected to the inside of the cutting fixing pipe (4), a cutting (6) is inserted into the sealing rubber plug (5), and a cleaning nozzle (7) is also provided on the circulating water immersion pipe (3); A reducing connecting pipe (8) is fixedly connected to one end of the circulating water immersion pipe (3), a first gear (9) is fixedly connected to the reducing connecting pipe (8), the first gear (9) is meshed with a second gear (10), a third gear (11) is arranged on one side of the second gear (10), the second gear (10) and the third gear (11) are connected in one-way transmission via a ratchet drive mechanism (12), a piston cylinder (13) is arranged on one side of the third gear (11), a reciprocating screw rod (14) passes through the right side of the piston cylinder (13), the reciprocating screw rod (14) is fixedly connected to the third gear (11), the reciprocating screw rod (14) is transmission-connected to a reciprocating piston (15), a filter cylinder (16) is arranged on the left side of the piston cylinder (13), a spiral scraper (17) is arranged in the filter cylinder (16), and the spiral scraper (17) is arranged in the filter cylinder (16). The scraper plate (17) is fixedly connected to the second gear (10) via a scraper connecting rod (18), and the scraper connecting rod (18) passes through the third gear (11). A first pumping pipe (19) is fixedly connected to the lower middle section of the piston cylinder (13), and the other end of the first pumping pipe (19) is connected to the bottom of the culture tank (1). A first one-way valve (1901) is arranged in the first pumping pipe (19). The upper left side of the piston cylinder (13) is connected to the variable diameter connecting pipe (8) via a low-speed rotating connecting valve (20), and the upper right end of the piston cylinder (13) is connected to the variable diameter connecting pipe (8) via a high-speed rotating connecting valve (21). A second pumping pipe (22) is connected to the lower right end of the piston cylinder (13), and the second pumping pipe (22) is connected to a faucet or a water pump to receive external cleaning water.

2. The fruit-bearing Korean pine introduction and cultivation device based on Maowusu sandy land according to claim 1 is characterized in that: The insert fixing pipe (4) and the cleaning nozzle (7) are distributed in a ring shape around the outer side of the circulating water immersion pipe (3), and the insert fixing pipe (4) and the cleaning nozzle (7) are distributed in an interlaced manner.

3. The fruit-bearing Korean pine introduction and cultivation device based on Maowusu sandy land according to claim 1 is characterized in that: The opening direction of the insert fixing pipe (4) is consistent with the tangent direction of the cross-section circle of the circulating water immersion pipe (3) at a corresponding position, and a through hole is opened in the sealing rubber plug (5).

4. The fruit-bearing Korean pine introduction and cultivation device based on Maowusu sandy land according to claim 1 is characterized in that: The ratchet drive mechanism (12) comprises a limit column (1201), the right side of the third gear (11) is fixedly connected to the limit column (1201), the outer sleeve of the limit column (1201) is provided with a first one-way ratchet disc (1202), the left side of the second gear (10) is fixedly connected to the second one-way ratchet disc (1203), a pressure spring (1204) is provided on the left side of the first one-way ratchet disc (1202), the pressure spring (1204) is located between the third gear (11) and the first one-way ratchet disc (1202), and a rotation limit strip (1205) is processed on the outer side of the limit column (1201), and the rotation limit strip (1205) and the first one-way ratchet disc (1202) are interlocked.

5. The fruit-bearing Korean pine introduction and cultivation device based on Maowusu sandy land according to claim 1 is characterized in that: The filter cylinder (16) has openings at both ends, the two ends of the filter cylinder (16) are tightly fitted to the inner wall of the piston cylinder (13), and the diameter of the middle section of the filter cylinder (16) is smaller than the diameter of the piston cylinder (13).

6. The fruit-bearing Korean pine introduction and cultivation device based on Maowusu sandy land according to claim 1 is characterized in that: A tensioning plugging cover (24) is provided at the opening at the left end of the piston cylinder (13), and a tensioning rod (2401) is fixedly connected to the right side of the tensioning plugging cover (24). The tensioning rod (2401) is inserted into the left end of the scraper connecting rod (18), and one end of the tensioning rod (2401) is fixedly connected to the tensioning plugging cover (24), and the other end of the tensioning rod (2401) is fixedly connected to a spring stopper (2402). A tensioning spring (2403) is sleeved on the outer side of the tensioning rod (2401), and the tensioning spring (2403) is located between the end constriction of the scraper connecting rod (18) and the spring stopper (2402). The tensioning spring (2403) tightens the tensioning plugging cover (24) to the right, so that the tensioning plugging cover (24) blocks the opening at the left end of the piston cylinder (13).

7. The fruit-bearing Korean pine introduction and cultivation device based on Maowusu sandy land according to claim 1 is characterized in that: The low-speed rotating connecting valve (20) comprises a first rotating sealing disk (2001), the first rotating sealing disk (2001) is rotatably connected to the variable diameter connecting tube (8) via a mechanical seal, the lower end of the first rotating sealing disk (2001) is connected to the piston cylinder (13) via a first drainage tube (2002), a second one-way valve (2003) is arranged in the first drainage tube (2002), four first rotating tubes (2004) are fixedly connected around the variable diameter connecting tube (8), a first sliding sleeve (2005) is slidably connected in the first rotating tube (2004), a first spring (2006) is arranged on the outside of the first sliding sleeve (2005), a first connecting hole (2007) is opened on the outer wall of the first rotating tube (2004), and the first connecting hole (2007) is opened at the first spring (2006).

8. The fruit-bearing Korean pine introduction and cultivation device based on Maowusu sandy land according to claim 1 is characterized in that: The high-speed rotating connecting valve (21) comprises a second rotating sealing disc (2101), the second rotating sealing disc (2101) is rotatably connected to the variable diameter connecting pipe (8) via a mechanical seal, the lower end of the second rotating sealing disc (2101) is connected to the piston cylinder (13) via a second drainage pipe (2102), a third one-way valve (2103) is arranged in the second drainage pipe (2102), four second rotating tubes (2104) are fixedly connected around the variable diameter connecting pipe (8), a second sliding sleeve (2105) is slidably connected in the second rotating tube (2104), a second spring (2106) is arranged outside the second sliding sleeve (2105), a second connecting hole (2107) is opened on the outer wall of the second rotating tube (2104), and the second connecting hole (2107) is opened at the second sliding sleeve (2105).

9. The fruit-bearing Korean pine introduction and cultivation device based on Maowusu sandy land according to claim 1, characterized in that: A fourth gear (23) is arranged on the left side of the first gear (9), and the fourth gear (23) comprises a rotating disk (2301), the rotating disk (2301) is fixedly connected to the variable diameter connecting pipe (8), a rotating gear ring (2302) is rotatably connected to the outer side of the rotating disk (2301) via a bearing, the rotating gear ring (2302) and the third gear (11) are meshed with each other, and a telescopic groove (2303) is arranged inside the rotating disk (2301), and a metal The rotating disk (2301) is provided with an adjusting groove (2308), and the adjusting block (2307) is fixedly connected to one end of the adjusting groove (2308). The adjusting block (2307) is fixedly connected to the adjusting groove (2308) via a thread. The adjusting bolt (2309) passes through the adjusting groove (2308).

10. The cultivation process of the fruit-bearing Korean pine introduction and cultivation device based on Maowusu sandy land according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Cutting introduction: Select healthy and strong branches with full buds and no pests and diseases from the Korean pine mother tree, and cut a section of the branch including the bud point with sharp scissors, with a length of 10-15 cm; S2. Pretreatment: The lower end of the cutting (6) transported over a long distance to the cultivation site is initially rinsed and cleaned to remove the soil and branches and leaves adhering to the cutting (6). Then, a sharp pair of scissors is used to cut an inclined wound at the upper end of the cutting (6) and a straight wound at the lower end of the cutting (6). After the cutting is completed, the upper end of the cutting (6) is inserted into the cutting fixing tube (4) on the circulating immersion pipe (3), so that the upper end opening of the cutting (6) passes through the sealing rubber plug (5). The cutting (6) is kept 10 cm outside the cutting fixing tube (4) to ensure that the circulating immersion pipe (3) When rotating, the cutting (6) will not collide with the culture tank (1), and then the second water pumping pipe (22) is connected to the faucet to supply cleaning water, and then the servo motor (301) is started to drive the circulating immersion pipe (3) to rotate at a speed of 100 r / min, and the cutting (6) is finely rinsed and centrifuged by spraying a jet through the cleaning nozzle (7), so that the bud point and the wound position on the outer surface of the cutting (6) are cleaned, and at the same time, the pathogens that invaded the wound at the lower end of the cutting (6) are centrifuged and removed, and after the cleaning is completed, the cleaning water is drained; S3 wax closure: The lower end of the cleaned cuttings (6) is immersed in melted wax oil to a depth of 1-1.5cm, and then the wax oil solidifies; S4. Immersion culture: After the wax seal is completed, a nutrient solution is injected into the culture tank (1), and the servo motor (301) is adjusted to drive the circulating immersion pipe (3) to rotate at a speed of 5 r / min, so that the cuttings (6) are immersed in the culture solution in turn, and then leave the culture solution. The intermittent immersion culture method is used to promote the rapid rooting of the cuttings (6). At the same time, the circulating immersion pipe (3) is used to pressurize and transport the nutrient solution to the upper end of the cuttings (6) to compensate for the wax seal at the lower end of the cuttings (6) and the problem of being unable to absorb water and nutrients. After the cuttings (6) have grown dense roots, they are taken out of the culture tank (1) and transplanted to the forest land.

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