Isobaric injection type planting seed launching method

Abstract

The invention discloses an isobaric injection type planting seed launching method, which comprises the following steps of: mixing plant seeds and a nutrient medium to prepare a bullet-shaped launcher, and launching the launcher into a bank slope soil body by utilizing air pressure, and is characterized in that an air pressure source with stable pressure is used for supplying air to a launching chamber; interval type continuous eruption of the seed emitter is realized through continuous on-off circulation control of air supply. According to the device, planting and greening of the river bank slope can be completed by launching the launcher containing the plant seeds, the device has the advantages that the seed launching stability is better, the launching speed is easier to control and the service life is longer, river bank abrupt slope limitation can be overcome, bank protection plant seed planting is completed, the manual operation risk is reduced, and river bank slope greening is better achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of bank slope greening, and particularly to an isobaric jet planting seed launching method. Background Art

[0002] In the existing technologies for greening slopes, spraying sowing is a common and efficient greening method. The principle of spraying sowing is to mix plant seeds, water-retaining materials, nutrient substrates, etc., and then use spraying equipment to spray and attach them to the slope surface of the slope. When the plant seeds germinate and grow into vegetation, the slope is greened and protected.

[0003] However, this spraying sowing method is generally more suitable for positions such as road slopes and not for the slopes on both sides of the river. Because the slopes on both sides of the river are often damaged by vegetation due to being washed and eroded by flowing water. If the spraying sowing method is adopted, the substrate of spraying sowing is easily washed away by the water flow when attached to the slope surface, and it is also easy to attach to the surface of existing plants, which instead affects their growth. At the same time, for some relatively steep river sections, it is not easy for ships to dock, and it is difficult to reach the distance requirements for spraying sowing.

[0004] To solve the above problems, the applicant has previously applied for and later published a patent for invention "A Method for Planting Vegetation on River Bank Slopes", and its patent application number is 2025105671636. In this patent, plant seeds and nutrient substrates are mixed to make a bullet-shaped launcher, and then compressed gas is used as the power on a river boat to launch the launcher and embed it into the soil of the river bank slope to achieve vegetation planting. However, in this patent, an engine drives a piston device to reciprocate to provide a cyclic gas pressure and push the launcher to complete the launch. When this device is used, the launch rate of the launcher is determined by the reciprocating rate of the piston device. Therefore, there are defects such as low launch rate, inconvenient adjustment, poor stability of the piston device, and short service life. Summary of the Invention

[0005] In view of the above deficiencies, the technical problem to be solved by the present invention is: how to provide an isobaric jet planting seed launching method with better seed launch stability, easier control of the launch rate, and longer service life. It can overcome the limitation of the steep river bank, complete the planting of bank protection plant seeds, reduce the risk of manual operation, and better realize the greening of the river bank slope.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: An isobaric jet planting seed launching method, in which a bullet-shaped launcher made by mixing plant seeds and nutrient substrates is launched into the bank slope soil by using air pressure, and is characterized in that a stable pressure air source is used to supply gas to the launch chamber, and intermittent continuous spraying of the seed launcher is realized by continuously controlling the on-off cycle of the gas supply.

[0007] In this way, the method uses isobaric injection to control the launch of the seed launcher, so that its launch stability is better and the launch rate is easier to control. The seed launcher is launched and hit onto the river bank slope to achieve the planting of plant seeds, reduce the risk of manual operation, and better achieve the greening of the river bank slope. The seed launcher is a bullet-shaped structure made by mixing plant seeds and nutrient matrix. In this way, the method can well meet the needs of planting vegetation on the river bank slope, especially replanting weak positions of green plants, better achieve or maintain the greening of the river bank slope, realize the greening protection of the environment, and avoid soil erosion.

[0008] Furthermore, the method is implemented by a river bank seed planting vessel, which includes a hull and an isobaric jet seed planting device installed on the hull, the isobaric jet seed planting device including a launching device located at the front end and a constant pressure air source device located at the rear end, the launching device including a launching tube horizontally arranged at the front end, the inner cavity of the launching tube is a launching chamber cavity and the rear end is connected to the air intake pipe backwards, a bullet feed port is arranged on the upper end face of the rear half of the launching tube, a vertical bomb bay is fixedly connected upwardly at the bullet feed port, the bomb bay is used to load a projectile made of a mixture of plant seeds and nutrient matrix, the projectile is in the shape of a bullet with the tip facing forward, and an air intake switch control mechanism is also provided on the air intake pipe and is used to control the air intake pipe to achieve intermittent continuous air intake.

[0009] In this way, the air intake switch control mechanism can control the air intake pipe to achieve intermittent continuous air intake. Since the air intake pipe is connected to a constant pressure air source device, a constant air pressure airflow can be provided each time air is taken in. After the airflow impacts the launch chamber, it acts on the projectile that falls from the bomb bay into the launch tube, completing the spraying and firing of the projectile. The projectile containing plant seeds is launched into the soil of the bank slope, so it will not be easily washed away by the river water. After the seeds germinate and take root and grow into plants, the greening of the bank slope can be achieved.

[0010] Further, the air intake switch control mechanism includes a ball valve, which is installed on a fixed section of the air intake pipe. The ball valve has a rotatable valve core, one end of the valve core's rotating shaft passes through the valve sleeve of the ball valve and is installed with a passive gear. The air intake switch control mechanism also includes a transmission rod that can slide along its own length direction, the transmission rod is provided with an output rack along the length direction and meshes with the passive gear, the transmission rod is also provided with an input rack along the length direction and meshes with an arc-shaped rack on the edge of a fan-shaped toothed disk, the handle of the fan-shaped toothed disk is rotatably installed on a fixed swing shaft, the handle of the fan-shaped toothed disk also extends outward to form a swing handle, the swing handle is provided with a slide groove along its own length direction, a matching slider is slidably engaged on the slide groove, the slider is eccentrically fixed on a turntable, and the turntable is connected to a transmitting motor.

[0011] In this way, the emission motor drives the turntable to rotate. The turntable drives the swing handle to swing back and forth through the cooperation of the slider and the chute. Then, through the meshing of the sector gear disc and the input rack, the transmission rod slides back and forth. Further, through the meshing of the output rack and the passive gear, the valve core rotates reciprocally. This enables the spherical valve to reciprocally achieve the on-off of air intake, realize intermittent continuous air intake, and complete the intermittent continuous ejection of the emitter. It has the characteristics of simple structure, reliable and stable control, and fast emission rate.

[0012] Furthermore, the transmission rod is slidably installed in two limit sliding sleeves, which can better ensure the stability of the back-and-forth sliding of the transmission rod.

[0013] Furthermore, an independent air intake control switch valve is also provided on the air intake pipe, which is convenient for better control.

[0014] Furthermore, an ammunition feeding control mechanism is also provided at the ammunition feeding port of the emitter tube. The ammunition feeding control mechanism includes an emitter baffle horizontally arranged at the lower end of the ammunition magazine. The front half of the emitter baffle is located inside the ammunition feeding port, and the rear half of the emitter baffle is located in a baffle mounting groove formed by the upward protrusion above the rear half of the emitter tube. The rear end of the emitter baffle can horizontally slide out of the baffle mounting groove and is connected to the front end of a pull rope. The fixed section of the air intake pipe and the transmission rod are both arranged along the length direction of the emitter tube. The rear end of the pull rope is fixedly connected to the front end of the transmission rod. A baffle return spring is also provided in the baffle mounting groove, and the baffle return spring acts on the emitter baffle to keep its front half in the ammunition feeding port.

[0015] In this way, every time the transmission rod moves back and forth to enable the air intake pipe to achieve one-time ejection air intake, it also pulls the emitter baffle backward once, so that the emitter in the upper ammunition magazine can fall into the fired emitter chamber, completing the automatic loading of the emitter. In this way, the intermittent continuous ejection of the emitter can be accurately completed, realizing the automation of continuous emission and ensuring the stability of emission.

[0016] Furthermore, in the emission device, there are multiple emitter tubes arranged horizontally in parallel. The front end of the fixed section of the air intake pipe is connected with multiple air intake branch pipes, and the front ends of the air intake branch pipes are connected to the rear ends of the respective emitter tubes. The rear ends of the emitter baffles at the rear of each emitter tube are respectively connected to the front end of the transmission rod through a pull rope.

[0017] In this way, one firing can control the emission of a row of emitters, improving the planting efficiency.

[0018] Furthermore, the front half of the air intake pipe is a flexible pipe. The middle position of the lower surface of the emitter tube is rotatably installed at the upper end of a support, and the front end or the rear end of the lower surface of the emitter tube is installed on a vertically arranged height adjustment mechanism.

[0019] This facilitates controlling and adjusting the vertical angle of the emission direction of the emission tube.

[0020] Further, the height adjustment mechanism includes a plug rod whose upper end is hinged to the emission tube. The lower end of the plug rod is inserted into a vertically arranged slot seat. A vertical row of card slots is also horizontally arranged on the lower side surface of the lower part of the plug rod. A plug pin is horizontally penetrated through the outside of the slot seat and inserted and fixed in the card slots.

[0021] In this way, pull out the plug pin, adjust the height position of the plug rod, and then insert the plug pin into the card slot to fix the plug rod. It has the characteristics of simple structure, convenient height adjustment, and quick, stable fixation after adjustment.

[0022] Further, the constant-pressure air source device includes an inflation chamber that is open upward vertically. A piston plate that can slide up and down is horizontally arranged on the inner side wall of the inflation chamber. A counterweight is placed on the upper surface of the piston plate. The front side of the lower part of the inflation chamber is connected to the rear end of the air inlet pipe. The rear side of the lower part of the inflation chamber is connected to an air pump through an inflation pipe. An air inlet control valve is arranged on the inflation pipe.

[0023] This is because the conventional constant-pressure air source device uses a high-pressure compressed air tank and installs a pressure stabilizing valve in the air outlet pipeline. However, this method has high requirements for the pressure stabilizing valve, and it is difficult to effectively adjust the pressure magnitude. At the same time, when the gas volume in the gas tank decreases, it is easy to cause pressure loss and the stability is poor. In the device of this solution, the inflation chamber is inflated by the air pump inside it, so that the piston is lifted upward. The air pressure magnitude in the inflation chamber is controlled by the size of the counterweight above the piston plate. During the inflation process, the air pressure in the inflation chamber remains stable and is consistent with the weight of the piston plate counterweight. After inflation is completed, the inflation pipe is closed, and an air pressure source is formed in the inflation chamber to supply air to the air inlet pipe. As the air flow is lost, the piston plate gradually moves downward, so that the air pressure in the inflation chamber still remains stable and is consistent with the weight of the piston plate counterweight during the deflation process. In this way, a simple structure is used to achieve stable constant-pressure air supply to the air inlet pipe. Compared with the method of using a compressed air tank matching a pressure stabilizing valve for constant-pressure control, the structure is simpler, the control is more reliable and stable, and the magnitude adjustment control of the pressure can be achieved through the mass adjustment of the counterweight.

[0024] Further, the air inlet control valve is a one-way air inlet valve. In this way, inflation can be achieved when the air pump is turned on, and the inflation pipe will automatically close after it is turned off, and the control is simpler and more convenient.

[0025] Further, a vertical cylindrical airbag sleeve is also arranged in the inner cavity of the inflation chamber. The upper end of the airbag sleeve is hermetically fixed at the peripheral edge position of the lower surface of the piston plate, and the lower end is hermetically fixed along the circumference on the inner side wall of the inflation chamber adjacent to the upper part of the air inlet pipe and the inflation pipe.

[0026] This is because the conventional sealing method of setting a sealing ring around the piston plate not only easily leaks air, but also the friction between the sealing ring and the inner cavity of the inflation chamber will affect the control effect of realizing a constant-pressure air source supply in the inflation chamber. After adopting the above-mentioned airbag sleeve structure in this application, it can be set that the normal height of the airbag sleeve after being straightened is greater than the depth of the inner cavity of the inflation chamber, so that the airbag sleeve can seal the gas in the inflation chamber, and it is always in an unloaded state, which will not affect the up and down sliding of the piston plate and will not affect the constant-pressure effect of the air source supply. Therefore, it better ensures the stability of the constant-pressure air source supply effect, improves the stability of the device and extends the service life.

[0027] Further, a normally open contact inflation switch is provided with an upward protrusion at the bottom of the inner cavity of the inflation chamber. The contact inflation switch is connected to the switch control module of the air pump and is used to realize the opening control of the air pump. One side of the upper end of the piston plate is vertically provided with a push rod upward, and a normally open contact air cut-off switch is correspondingly provided at the upper end of the push rod. The contact air cut-off switch is connected to the switch control module of the air pump and is used to realize the closing control of the air pump.

[0028] In this way, when the air source in the inflation chamber is gradually supplied, the piston plate gradually descends. After contacting the contact inflation switch, it closes and the air pump is opened to inflate the inflation chamber. During inflation, the piston plate gradually rises until the upper end of the push rod touches the contact air cut-off switch, which closes and the air pump is turned off to stop inflation. In this way, the automatic control of the air pump inflation is realized.

[0029] Further, the switch control module of the air pump includes a power supply. A air pump control circuit is formed in series between the power supply and the air pump. A single-pole double-throw switch is installed on the air pump control circuit. The single-pole double-throw switch has two fixed contacts and a conductive contact rod made of iron material. The two fixed contacts are horizontally spaced apart. The lower end of the conductive contact rod is installed between the lower parts of the two fixed contacts through a rotating shaft and its upper end can rotate left and right to connect with the two fixed contacts. The air pump control circuit is connected between one of the fixed contacts and the conductive contact rod; an inflation control electromagnet is provided adjacent to the lower part of the fixed contact connected to the air pump control circuit, and a air cut-off control electromagnet is provided adjacent to the lower part of the other fixed contact. An inflation control circuit is formed by connecting between the power supply and the contact inflation switch, and the inflation control electromagnet is connected in series in the inflation control circuit; a air cut-off control circuit is formed by connecting between the power supply and the contact air cut-off switch, and the air cut-off control electromagnet is connected in series in the air cut-off control circuit.

[0030] In this way, when the air source in the inflation chamber is gradually used up, the piston plate gradually descends. After contacting the contact inflation switch, the contact inflation switch closes, enabling the inflation control circuit to be connected. Consequently, the electromagnet for inflation control operates and attracts the conductive contact rod of the single-pole double-throw switch to rotate towards and contact the fixed contact at one end in that direction, connecting and enabling the air pump control circuit to be connected, and the air pump starts to work for inflation. After the air pump inflates, the piston plate starts to rise and separates from the contact inflation switch, and the contact inflation switch returns to the normally open state. The electromagnet for inflation control is de-energized, and the conductive contact rod still keeps the air pump control circuit connected under its own weight, and the air pump continues to inflate. Then, during inflation, the piston plate gradually rises upwards until the upper end of the ejector rod touches the contact air cut-off switch, and the contact air cut-off switch closes, enabling the air cut-off control circuit to be connected. Consequently, the electromagnet for air cut-off control operates and attracts the conductive contact rod of the single-pole double-throw switch to rotate towards and contact the fixed contact at one end in that direction, disconnecting the air pump control circuit, and the air pump stops working. In this way, relying on the switch control module composed of simple switch devices, the automatic cyclic control of the inflation and shutdown of the air pump can be achieved. It greatly improves the degree of automatic control of the equipment.

[0031] Further, the height position of the contact inflation switch is set higher than the positions of the air inlet pipe and the inflation pipe. This can better ensure the smooth realization of inflation.

[0032] Further, the contact inflation switch includes a pressing block mounting groove protruding from the bottom of the inner cavity of the inflation chamber. A pressing block is installed in the pressing block mounting groove, and the upper end of the pressing block protrudes from the pressing block mounting groove. On both sides of the middle of the pressing block, there are extending arms outward. At the outer ends of the extending arms, there are rollers that are in contact with the inner side wall of the pressing block mounting groove. At the lower end surface of the pressing block, there is a conductive contact block, and correspondingly below the conductive contact block, there are two horizontally spaced conductive contact heads. The two conductive contact heads are connected in the inflation control circuit. Below each of the two side extending arms, there is a pressing block support spring, which is used to keep the conductive contact block and the conductive contact heads in a separated normally open state. The height by which the upper end of the pressing block protrudes from the pressing block mounting groove is greater than the distance between the conductive contact block and the conductive contact heads.

[0033] In this way, after the air volume in the inflation chamber decreases, the piston plate descends and contacts the pressing block and presses it down, enabling the conductive contact block to contact the two conductive contact heads to complete the connection of the inflation control circuit. It has the advantages of stable and reliable structure.

[0034] To sum up, the present invention can complete the planting and greening of the river bank slope by launching the emitter containing plant seeds, and has the advantages of better seed launch stability, easier control of the launch rate, and longer service life. It can overcome the limitation of the steep river bank, complete the planting of the bank protection plant seeds, reduce the risk of manual operation, and better realize the greening of the river bank slope. Description of the Drawings

[0035] Figure 1 The figure is a schematic diagram of a river bank seed planting vessel used in a preferred embodiment of the present invention.

[0036] Figure 2 for Figure 1 Schematic diagram of the structure of a separate isobaric jet seed planting device.

[0037] Figure 3 for Figure 2 A magnified schematic diagram of a single emitter.

[0038] Figure 4 for Figure 2 A schematic diagram showing an enlarged partial structure of a separate launch device.

[0039] Figure 5 for Figure 2 Schematic diagram of the enlarged structure of the separate constant pressure gas source device.

[0040] Figure 6 for Figure 2 An enlarged schematic diagram of a single contact inflation switch. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with specific implementation modes.

[0042] Preferred implementation method: An isobaric jet planting seed launching method, in which plant seeds and nutrient matrix are mixed to form a bullet-shaped projectile and the projectile is launched into the slope soil by air pressure. Its characteristic is that a stable pressure air pressure source is used to supply air to the launching chamber, and intermittent continuous ejection of the seed projectile is achieved by continuous on-off cycle control of the air supply.

[0043] In this way, the method uses isobaric injection to control the launch of the seed launcher, so that its launch stability is better and the launch rate is easier to control. The seed launcher is launched and hit onto the river bank slope to achieve the planting of plant seeds, reduce the risk of manual operation, and better achieve the greening of the river bank slope. The seed launcher is a bullet-shaped structure made by mixing plant seeds and nutrient matrix. In this way, the method can well meet the needs of planting vegetation on the river bank slope, especially replanting weak positions of green plants, better achieve or maintain the greening of the river bank slope, realize the greening protection of the environment, and avoid soil erosion.

[0044] In this embodiment, the method is implemented by a river bank slope seed planting boat, see Figures 1-6The river bank seed planting boat includes a hull 61 and an isobaric jet seed planting device 62 installed on the hull. The isobaric jet seed planting device includes a launching device located at the front end and a constant pressure air source device located at the rear end. The launching device includes a launching tube 1 horizontally arranged at the front end. The inner cavity of the launching tube 1 is a launching chamber cavity and the rear end is connected to the air intake pipe 2 backward. The upper end surface of the rear half of the launching tube 1 is provided with a bullet feed port, and a vertical bomb bay 3 is fixedly connected upward at the bullet feed port. The bomb bay 3 is used to load a projectile 4 made by mixing plant seeds 5 and a nutrient matrix. The projectile 4 is in the shape of a bullet with the tip facing forward. The air intake pipe 2 is also provided with an air intake switch control mechanism and is used to control the air intake pipe to achieve intermittent continuous air intake.

[0045] In this way, the air intake switch control mechanism can control the air intake pipe to realize intermittent continuous air intake. Since the air intake pipe is connected to the constant pressure air source device, it can provide a constant air pressure airflow each time air is taken in. After the airflow impacts the launch chamber, it acts on the projectile that falls from the bomb bay into the launch tube, completing the spraying and firing of the projectile. The projectile containing plant seeds is launched into the soil of the bank slope, so it will not be easily washed away by the river water. After the seeds germinate and take root and grow into plants, the bank slope can be greened. Figure 1 As shown, during implementation, a plurality of isobaric jet seed planting devices 62 can be arranged on one side of the hull 61. In the figure, 63 represents a river channel.

[0046] Among them, the air intake switch control mechanism includes a ball valve 6, which is installed on a fixed section of the air intake pipe. The ball valve 6 has a rotatable valve core, one end of the valve core's rotating shaft passes through the valve sleeve of the ball valve and is installed with a passive gear 7. The air intake switch control mechanism also includes a transmission rod 8 that can slide along its own length direction, an output rack 9 is arranged on the transmission rod along the length direction and meshes with the passive gear 7, an input rack 10 is also arranged on the transmission rod 8 along the length direction and meshes with an arc-shaped rack on the edge of a fan-shaped toothed disk 11, the handle of the fan-shaped toothed disk 11 is rotatably installed on a fixed swing shaft, the handle of the fan-shaped toothed disk 11 also extends outward to form a swing handle, a slide groove 12 is arranged on the swing handle along its own length direction, a matching slider 13 is slidably engaged on the slide groove 12, the slider 13 is eccentrically fixed on a turntable 14, and the turntable 14 is connected to a launch motor 15.

[0047] In this way, the emission motor drives the turntable to rotate. The turntable drives the swing handle to swing back and forth through the cooperation of the slider and the chute. Then, through the meshing of the sector gear disc and the input rack, the transmission rod slides back and forth. Further, through the meshing of the output rack and the passive gear, the valve core rotates reciprocally. This enables the spherical valve to reciprocally achieve the on-off of air intake, realize intermittent continuous air intake, and complete the intermittent continuous ejection of the emitter. It has the characteristics of simple structure, reliable and stable control, and fast emission rate.

[0048] Among them, the transmission rod 8 is slidably installed in two limit sliding sleeves 16, which can better ensure the stability of the back-and-forth sliding of the transmission rod.

[0049] Among them, an independent air intake control switch valve 17 is also provided on the air intake pipe, which is convenient for better control.

[0050] Among them, an ammunition feeding control mechanism is also provided at the ammunition feeding port of the emission tube. The ammunition feeding control mechanism includes an emitter baffle 18 horizontally arranged at the lower end of the ammunition magazine 3. The front half of the emitter baffle 18 is located inside the ammunition feeding port, and the rear half of the emitter baffle is located in a baffle installation groove formed by the upward protrusion above the rear half of the emission tube. The rear end of the emitter baffle can slide horizontally out of the baffle installation groove and is connected to the front end of a pull rope 19. The fixed section of the air intake pipe and the transmission rod are both arranged along the length direction of the emission tube. The rear end of the pull rope 19 is fixedly connected to the front end of the transmission rod; a baffle return spring 20 is also provided in the baffle installation groove, and the baffle return spring 20 acts on the emitter baffle 18 to keep its front half in the ammunition feeding port.

[0051] In this way, every time the transmission rod moves back and forth to cause the air intake pipe to achieve an ejection air intake, it also pulls the emitter baffle backward once, so that the emitter in the upper ammunition magazine can fall into the fired emission chamber, completing the automatic loading of the emitter. In this way, the intermittent continuous ejection of the emitter can be accurately completed, realizing the automation of continuous emission and ensuring the stability of emission.

[0052] Among them, in the emission device, there are multiple emission tubes 1 arranged horizontally in parallel. The front end of the fixed section of the air intake pipe 2 is connected with multiple air intake branch pipes, and the front ends of the air intake branch pipes are connected to the rear ends of the respective emission tubes. The rear ends of the emitter baffles at the rear parts of the respective emission tubes are each connected to the front end of the transmission rod through a pull rope.

[0053] In this way, one firing can control the emission of a row of emitters, improving the planting efficiency.

[0054] Among them, the front half of the air intake pipe 2 is a flexible pipe. The middle position of the lower surface of the emission tube 1 is rotatably installed at the upper end of a support 21, and the front end or the rear end of the lower surface of the emission tube 1 is installed on a vertically arranged height adjustment mechanism.

[0055] This facilitates controlling and adjusting the vertical angle of the emission direction of the emission tube.

[0056] Among them, the height adjustment mechanism includes a plug rod 22 whose upper end is hinged to the emission tube. The lower end of the plug rod is inserted into a vertically arranged slot seat 23. A vertical row of card slots is also horizontally arranged on the lateral surface of the lower part of the plug rod. A plug pin 24 is horizontally penetrated through the outside of the slot seat and inserted and fixed in the card slots.

[0057] In this way, after pulling out the plug pin and adjusting the height position of the plug rod and then inserting the plug pin into the card slots, the fixing of the plug rod is realized. It has the characteristics of simple structure, convenient height adjustment, and quick, stable fixing after adjustment.

[0058] Among them, the constant-pressure air source device includes an inflation chamber 30 that is open upward vertically. A piston plate 31 that can slide up and down is horizontally arranged on the inner side wall of the inflation chamber 30. A counterweight 32 is placed on the upper surface of the piston plate 31. The front side of the lower part of the inflation chamber 30 is connected to the rear end of the air inlet pipe. The rear side of the lower part of the inflation chamber is connected to an air pump 33 through an inflation pipe. An air inlet control valve 34 is arranged on the inflation pipe.

[0059] This is because the conventional constant-pressure air source device uses a high-pressure compressed air tank and installs a pressure stabilizing valve in the air outlet pipeline. However, this method has high requirements for the pressure stabilizing valve, and it is difficult to effectively adjust the pressure magnitude. At the same time, when the gas volume in the gas tank decreases, it is easy to cause pressure loss and the stability is poor. In the device of this solution, the inflation chamber is inflated by the air pump inside it, so that the piston is lifted upward. The air pressure magnitude in the inflation chamber is controlled by the size of the counterweight above the piston plate. During the inflation process, the air pressure in the inflation chamber remains stable and is consistent with the weight of the piston plate counterweight. After inflation is completed, the inflation pipe is closed, and a pressure source is formed in the inflation chamber to supply air to the air inlet pipe. As the air flow is lost, the piston plate gradually moves downward, so that the air pressure in the inflation chamber still remains stable and is consistent with the weight of the piston plate counterweight during the deflation process. In this way, a stable constant-pressure air supply to the air inlet pipe is realized with a simple structure. Compared with the method of using a compressed air tank matching a pressure stabilizing valve for constant-pressure control, the structure is simpler, the control is more reliable and stable, and the adjustment of the pressure magnitude can be realized by adjusting the mass of the counterweight.

[0060] Among them, the air inlet control valve 34 is a one-way air inlet valve. In this way, inflation can be realized when the air pump is turned on, and the inflation pipe automatically closes after it is turned off, and the control is simpler and more convenient.

[0061] Among them, a vertical cylinder-shaped airbag sleeve 35 is also arranged in the inner cavity of the inflation chamber. The upper end of the airbag sleeve is hermetically fixed at the peripheral edge position of the lower surface of the piston plate, and the lower end is hermetically fixed along the circumference on the side wall of the inner cavity of the inflation chamber adjacent to the upper part of the air inlet pipe and the inflation pipe.

[0062] This is because the conventional sealing method of setting a sealing ring around the piston plate not only easily leaks air, but also the friction between the sealing ring and the inner cavity of the inflation chamber will affect the control effect of realizing a constant-pressure air source supply in the inflation chamber. After adopting the structure of the above-mentioned airbag sleeve in this application, it can be set that the normal height of the airbag sleeve after being straightened is greater than the depth of the inner cavity of the inflation chamber, so that the airbag sleeve can seal the gas in the inflation chamber, and it is always in an unloaded state, which will not affect the up and down sliding of the piston plate and will not affect the constant-pressure effect of the air source supply. Therefore, it better ensures the stability of the constant-pressure air source supply effect, improves the stability of the device and extends the service life.

[0063] Wherein, a normally open contact-type inflation switch 36 is provided with an upward protrusion at the bottom of the inner cavity of the inflation chamber. The contact-type inflation switch is connected to the switch control module of the air pump and is used to realize the opening control of the air pump. One side of the upper end of the piston plate is vertically provided with an upwardly extending push rod 37. A normally open contact-type air cut-off switch 38 is correspondingly provided at the upper end of the push rod 37. The contact-type air cut-off switch is connected to the switch control module of the air pump and is used to realize the closing control of the air pump.

[0064] In this way, when the air source in the inflation chamber is gradually supplied, the piston plate gradually descends. After contacting the contact-type inflation switch, it is closed and the air pump is opened to inflate the inflation chamber. During inflation, the piston plate gradually rises until the upper end of the push rod touches the contact-type air cut-off switch, which is closed and the air pump is turned off to stop inflation. In this way, the automatic control of the air pump inflation is realized.

[0065] Wherein, the switch control module of the air pump 33 includes a power supply 40. A air pump control circuit 41 is formed in series between the power supply 40 and the air pump 33. A single-pole double-throw switch 42 is installed on the air pump control circuit. The single-pole double-throw switch 42 has two fixed contacts and a conductive contact rod made of iron material. The two fixed contacts are horizontally spaced apart. The lower end of the conductive contact rod is installed between the lower positions of the two fixed contacts through a rotating shaft and its upper end can rotate left and right to connect with the two fixed contacts. The air pump control circuit 41 is connected between one of the fixed contacts and the conductive contact rod; an inflation control electromagnet 43 is provided adjacent to the lower part of the fixed contact connected to the air pump control circuit, and a air cut-off control electromagnet 44 is provided adjacent to the lower part of the other fixed contact. An inflation control circuit 45 is formed by connecting between the power supply 40 and the contact-type inflation switch 36. The inflation control electromagnet 43 is connected in series in the inflation control circuit 45; a air cut-off control circuit 46 is formed by connecting between the power supply 40 and the contact-type air cut-off switch 38. The air cut-off control electromagnet 44 is connected in series in the air cut-off control circuit 46.

[0066] In this way, when the air source in the inflation chamber is gradually used up, the piston plate gradually descends. After contacting the contact inflation switch, the contact inflation switch closes, enabling the inflation control circuit to be connected. Consequently, the electromagnet for inflation control operates and attracts the conductive contact rod of the single-pole double-throw switch to rotate to one end in the direction, making contact and connection with the fixed contact at this end, thus enabling the air pump control circuit to be connected and the air pump to start working for inflation. After the air pump inflates, the piston plate starts to rise and separates from the contact inflation switch, and the contact inflation switch returns to the normally open state. The electromagnet for inflation control is powered off, and the conductive contact rod still keeps the air pump control circuit connected under its own weight, and the air pump continues to inflate. Then, during inflation, the piston plate gradually rises upward until the upper end of the ejector rod touches the contact air cut-off switch, and the contact air cut-off switch closes, enabling the air cut-off control circuit to be connected. Consequently, the electromagnet for air cut-off control operates and attracts the conductive contact rod of the single-pole double-throw switch to rotate to one end in the direction, disconnecting the air pump control circuit and stopping the air pump from working. In this way, relying on the switch control module composed of simple switch devices, the automatic cyclic control of the inflation and shutdown of the air pump can be achieved, greatly improving the degree of automatic control of the equipment.

[0067] Among them, the height position of the contact inflation switch 36 is set higher than the positions of the air inlet pipe and the inflation pipe, which better ensures the smooth realization of inflation.

[0068] Among them, the contact inflation switch 36 includes a pressure block installation groove 48 protruding from the bottom of the inner cavity of the inflation chamber. A pressure block 49 is installed in the pressure block installation groove. The upper end of the pressure block protrudes from the pressure block installation groove. Arms extend outward from both sides in the middle of the pressure block. Rollers 53 are arranged at the outer ends of the arms and are in contact with the inner side wall of the pressure block installation groove. A conductive contact block 50 is arranged on the lower end face of the pressure block. Two horizontally spaced conductive contact heads 51 are correspondingly arranged below the conductive contact block. The two conductive contact heads are connected in the inflation control circuit. A pressure block support spring 52 is arranged below each of the two arms on both sides. The pressure block support spring is used to keep the conductive contact block and the conductive contact heads in a separated normally open state. The height by which the upper end of the pressure block protrudes from the pressure block installation groove is greater than the distance between the conductive contact block and the conductive contact heads.

[0069] In this way, after the gas volume in the inflation chamber decreases, the piston plate descends and contacts the pressure block and presses it down, enabling the conductive contact block to contact the two conductive contact heads to complete the connection of the inflation control circuit. It has the advantages of stable and reliable structure.

Claims

1. An isobaric jet planting seed launching method, which makes a bullet-shaped emitter by mixing plant seeds and nutrient matrix and uses air pressure to launch it into the bank slope soil body. It is characterized in that, An air pressure source with a stable pressure is used to supply air to the firing chamber, and the intermittent continuous ejection of the seed emitter is achieved by controlling the continuous on-off cycle of the air supply.

2. The isobaric jet planting seed launching method according to claim 1, characterized in that, This method is implemented through a seed planting boat for riverbank slopes. The seed planting boat for riverbank slopes includes a hull, and also includes an isobaric jet seed planting device installed on the hull. The isobaric jet seed planting device includes a firing device at the front end and a constant pressure air source device at the rear end. The firing device includes a firing tube horizontally arranged at the front end. The inner cavity of the firing tube is the firing chamber, and the rear end is connected to an intake pipe backward. An ammunition inlet is arranged on the upper end surface of the rear half of the firing tube. A vertical ammunition magazine is fixedly connected upward at the ammunition inlet. The ammunition magazine is used to load the emitter made of a mixture of plant seeds and nutrient matrix. The emitter is in the shape of a bullet with the tip forward. An air intake switch control mechanism is also arranged on the intake pipe and is used to control the intake pipe to achieve intermittent continuous air intake.

3. The isobaric jet planting seed launching method according to claim 2, characterized in that, The air intake switch control mechanism includes a spherical valve. The spherical valve is installed on a fixed section of the intake pipe. The spherical valve has a rotatable valve core. One end of the rotating shaft of the valve core passes through the valve sleeve of the spherical valve and is installed with a passive gear. The air intake switch control mechanism also includes a transmission rod that can slide along its own length direction. An output rack is arranged along the length direction on the transmission rod and meshes with the passive gear. An input rack is also arranged along the length direction on the transmission rod and meshes with an arc rack on the edge of a sector gear disc. The handle of the sector gear disc is rotatably installed on a fixed swing rotating shaft. The handle of the sector gear disc also extends outward to form a swing handle. A chute is arranged along the length direction on the swing handle. A matching slider is slidably clamped on the chute. The slider is eccentrically fixed on a turntable. The turntable is connected to a firing motor.

4. The isobaric jet planting seed launching method according to claim 3, characterized in that, The transmission rod is slidably installed in two limit sleeves. An independent air intake control switch valve is also arranged on the intake pipe.

5. The isobaric jet planting seed launching method according to claim 3, characterized in that, An ammunition intake control mechanism is also arranged at the ammunition inlet of the firing tube. The ammunition intake control mechanism includes an emitter baffle horizontally arranged at the lower end of the ammunition magazine. The front half of the emitter baffle is located in the ammunition inlet, and the rear half of the emitter baffle is located in a baffle installation groove formed by a convex upward on the upper side of the rear half of the firing tube. The rear end of the emitter baffle can horizontally slide out of the baffle installation groove and is connected to the front end of a pull rope. The fixed section of the intake pipe and the transmission rod are both arranged along the length direction of the firing tube. The rear end of the pull rope is fixedly connected to the front end of the transmission rod. A baffle return spring is also arranged in the baffle installation groove. The baffle return spring acts on the emitter baffle to keep the front half of it in the ammunition inlet.

6. The isobaric jet planting seed launching method according to claim 5, characterized in that, In the firing device, there are multiple firing tubes arranged horizontally in parallel. The front end of the fixed section of the intake pipe is connected with multiple intake branch pipes. The front end of each intake branch pipe is connected to the rear end of each firing tube. The rear ends of the emitter baffles at the rear of each firing tube are respectively connected to the front end of the transmission rod through a pull rope.

7. The isobaric jet planting seed launching method according to claim 5, characterized in that, The front half of the intake pipe is a flexible hose. The middle position of the lower surface of the launch tube is rotatably installed at the upper end of a support, and the front end or the rear end of the lower surface of the launch tube is installed on a vertically arranged height adjustment mechanism. The height adjustment mechanism includes a plug rod whose upper end is hinged to the launch tube. The lower end of the plug rod is inserted into a vertically arranged slot seat. A vertical row of card slots is also horizontally arranged on the lower side surface of the lower part of the plug rod. A plug pin is horizontally and penetratingly arranged on the outside of the slot seat and inserted and fixed in the card slots.

8. The isobaric jet planting seed launching method according to claim 2, characterized in that, The constant pressure air source device includes an inflation chamber which is arranged with an upward opening. A piston plate which can slide up and down is horizontally arranged on the inner side wall of the inflation chamber. A counterweight block is placed on the upper surface of the piston plate. The front side of the lower part of the inflation chamber is connected to the rear end of the intake pipe, and the rear side of the lower part of the inflation chamber is connected to an air pump through an inflation pipe. An intake control valve is arranged on the inflation pipe.

9. The isobaric jet planting seed launching method according to claim 8, characterized in that, The intake control valve is a one-way intake valve. A cylindrical airbag sleeve is also arranged in the inner cavity of the inflation chamber. The upper end of the airbag sleeve is hermetically fixed at the peripheral edge position of the lower surface of the piston plate, and the lower end is hermetically fixed along the circumference on the inner side wall of the inflation chamber adjacent to the upper part of the intake pipe and the inflation pipe.

10. The isobaric jet planting seed launching method according to claim 8, characterized in that, A normally open contact type inflation switch is convexly arranged upward at the bottom of the inner cavity of the inflation chamber. The contact type inflation switch is connected to the switch control module of the air pump and is used to realize the opening control of the air pump. A push rod is vertically arranged upward on one side of the upper end of the piston plate. A normally open contact type air cut-off switch is correspondingly arranged at the upper end of the push rod. The contact type air cut-off switch is connected to the switch control module of the air pump and is used to realize the closing control of the air pump. The switch control module of the air pump includes a power supply. A air pump control circuit is formed in series between the power supply and the air pump. A single-pole double-throw switch is installed on the air pump control circuit. The single-pole double-throw switch has two fixed contacts and a conductive contact rod made of iron material. The two fixed contacts are horizontally spaced apart from each other. The lower end of the conductive contact rod is installed between the lower parts of the two fixed contacts through a rotating shaft and its upper end can rotate left and right to be connected to the two fixed contacts. The air pump control circuit is connected between one of the fixed contacts and the conductive contact rod. A inflation control electromagnet is arranged adjacent to the lower part of the fixed contact connecting the air pump control circuit. A air cut-off control electromagnet is arranged adjacent to the lower part of the other fixed contact. A inflation control circuit is formed in series between the power supply and the contact type inflation switch. The inflation control electromagnet is connected in series in the inflation control circuit. A air cut-off control circuit is formed in series between the power supply and the contact type air cut-off switch. The air cut-off control electromagnet is connected in series in the air cut-off control circuit. The height position of the contact type inflation switch is set higher than the positions of the intake pipe and the inflation pipe. The contact type inflation switch includes a pressure block installation groove protruding from the bottom of the inner cavity of the inflation chamber. A pressure block is installed in the pressure block installation groove, and the upper end of the pressure block protrudes from the pressure block installation groove. On both sides of the middle part of the pressure block, there are extending arms extending outward. The outer ends of the extending arms are provided with rollers that are in contact with the inner side wall of the pressure block installation groove. A conductive contact block is arranged on the lower end surface of the pressure block, and two horizontally spaced conductive contacts are correspondingly arranged below the conductive contact block. The two conductive contacts are connected in the inflation control circuit. A pressure block support spring is arranged below each of the two side extending arms. The pressure block support spring is used to keep the conductive contact block and the conductive contacts in a normally open state with a separation. The height by which the upper end of the pressure block protrudes from the pressure block installation groove is greater than the distance between the conductive contact block and the conductive contacts.

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