阅读说明：本技术 一种后置增压与泄压的水肥一体化装置 (Water and fertilizer integrated device with rear pressurization and pressure relief ) 是由 汪鲁才 钟峰 李禹� 唐晨光 张毅恒 曾红成 杨帆 于 2020-10-30 设计创作，主要内容包括：本发明公布了一种后置增压与泄压的水肥一体化装置,属于农业器械领域,包括底箱,所述底箱的顶部固定设置存储罐和混合箱,所述存储罐内设置若干个存储腔,所述存储罐的顶部设置有通向所述存储腔内的投料口,通过设置的封闭板,使已经被输送出来的水肥继续保持在输送的管道内,防止被清空,通过将要配置的肥料存储在存储罐内,便于管理,同时便于对配比的量的控制,在进行输送肥料的时候,通过设置毛细管和保护罩,防止因为输送的水流的压力过大而导致肥料或者水向输肥管内回流,对毛细管的出水口进行保护,还会由于保护罩外侧的流速快,将肥料从毛细管中吸出来,进入到扩展管道内的肥料和水在流动运输的状态下进行混合均匀。(The invention discloses a water and fertilizer integrated device with rear pressurization and pressure release, belonging to the field of agricultural instruments and comprising a bottom box, wherein a storage tank and a mixing box are fixedly arranged at the top of the bottom box, a plurality of storage cavities are arranged in the storage tank, a feed inlet leading to the storage cavities is arranged at the top of the storage tank, the transported water and fertilizer is continuously kept in a transportation pipeline through an arranged sealing plate to prevent the transported water and fertilizer from being emptied, the fertilizer to be configured is stored in the storage tank to facilitate management and control of the amount of proportioning, when the fertilizer is transported, the backflow of the fertilizer or water into a fertilizer transportation pipe due to the overlarge pressure of the transported water flow is prevented through arranging a capillary tube and a protective cover, the water outlet of the capillary tube is protected, and the fertilizer is sucked out from the capillary tube due to the fast flow speed outside the protective cover, the fertilizer and the water entering the expansion pipeline are uniformly mixed in a flowing and transporting state.)

1. The utility model provides a liquid manure integrated device of rearmounted pressure boost and pressure release, includes under casing (10), the top of under casing (10) is fixed to be set up storage jar (11) and mixing box (12), its characterized in that: a plurality of storage cavities (13) are arranged in the storage tank (11), a feed opening leading to the storage cavities (13) is arranged at the top of the storage tank (11), a plurality of sliding cavities (14) communicated with the storage cavity (13) are arranged in the storage tank (11), a conveying piece (15) is arranged in the sliding cavity (14) in a sliding manner in the up-down direction, the conveying piece (15) is divided into an upper part and a lower part, wherein the lower part is cup-shaped and a side wall remote from the storage chamber (13) is removed, a sealing door (16) which can stretch up and down is arranged on the bottom wall of one storage chamber (13) in a sliding way, a draw hook (17) for pushing the closing door (16) to contract downwards is fixedly arranged at the lower side part of the transportation piece (15), the top of the storage tank (11) is provided with a driving mechanism for driving the transportation piece (15) to move up and down singly or simultaneously;

the sliding cavity (14) is communicated with the inner cavity of the mixing box (12) through a pipeline, a first stirring blade (18) is arranged in the inner cavity of the mixing box (12), and the bottom of the mixing box (12) is communicated with a fertilizer conveying pipe (19);

a mixing mechanism is arranged in the inner cavity of the bottom box (10), the mixing mechanism comprises a water conveying pipe (20) arranged in the bottom box (10), a plurality of capillary tubes (21) which are communicated are arranged between the fertilizer conveying pipe (19) and the water conveying pipe (20), the capillary tubes (21) extend into the water conveying pipe (20), the end part of the water delivery pipe (20) is fixedly connected with a material outlet head (22), the outer side of the material outlet head (22) is fixedly provided with a protective cover (23) which surrounds the material outlet head (22), the upstream surface of the protective cover (23) is a tip, one side of the protective cover, which is not the upstream surface, is provided with an opening, one end of the water pipe (20) is communicated with an expansion pipeline (24), a second stirring blade (25) driven by water flow is rotatably arranged in the expansion pipeline (24), and the second stirring blade (25) is stirred and mixed when rotating;

an outlet pipeline connected with the expansion pipeline (24) is communicated with a constant pressure delivery pump (26), and a pressure relief valve (27) is arranged on the pipeline connected with the constant pressure delivery pump.

2. The integrated water and fertilizer device with the functions of post pressurization and pressure relief as claimed in claim 1, wherein: the drive mechanism comprises a winding drum (28) rotatably disposed on the top surface of the storage tank (11), a pulling rope (29) is wound on the winding drum (28), one end of the pulling rope (29) is connected with the top end of the transport piece (15), the other end of the transmission piece is connected with the bottom end of the transportation piece (15), a transmission gear (31) is connected with one end of the rotating shaft of the winding drum (28) in the central axis direction of the storage tank (11), the transmission gear (31) can slide relative to the rotating shaft of the winding drum (28), a top seat (30) is fixedly arranged on the top surface of the bottom box (10), a motor is fixedly arranged on the top seat (30), gears which can be respectively meshed with the transmission gear (31) are arranged on the output shaft of the motor, and a control component for driving the transmission gear (31) to be meshed with the gear is arranged at the top of the bottom box (10).

3. The integrated device of post-pressurizing and pressure-releasing for water and fertilizer as claimed in claim 2, characterized in that: the control assembly comprises a transmission gear (31) fixedly arranged on the top surface of the bottom box (10), sliding rods (33) which are mutually rotatably connected with the transmission gear (31) are arranged on the top surface of the bottom box (10) in a sliding mode, and permanent magnets attracted and repelled with the electromagnets (32) are fixedly arranged at the end portions of the sliding rods (33).

4. The integrated water and fertilizer device with the functions of post pressurization and pressure relief as claimed in claim 1, wherein: the mixing mechanism further comprises a rotating shaft (34) which is fixedly arranged in the water conveying pipe (20) in a rotating mode, a plurality of fan blades (35) are fixedly arranged on the rotating shaft (34), the rotating shaft (34) extends into the extension pipeline (24) and is fixedly connected with the second stirring blades (25), the rotating shaft (34) extends towards one side, far away from the extension pipeline (24), of the extension pipeline and penetrates through the water conveying pipe (20), and a flywheel is fixedly arranged at the end portion of the rotating shaft.

5. The integrated water and fertilizer device with the functions of post pressurization and pressure relief as claimed in claim 1, wherein: connect flabellum (35) on the delivery outlet of constant voltage delivery pump (26), the vertical pipeline internal rotation of flabellum (35) sets up closing plate (36), the fixed connecting box (37) that sets up on the trailing flank of flabellum (35), be provided with the cavity in connecting box (37), the axis of rotation of closing plate (36) extends backward and enters into in the cavity in connecting box (37), enter into fixed contact block (38) that sets up in the axis of rotation in connecting box (37) cavity, the cavity internal rotation of connecting box (37) sets up worm wheel (39), worm wheel (39) one side set up can with one section arc contact strip (40) that contact block (38) contacted, contact block (38) with arc contact strip (40) connect respectively in control relief valve (27) with on the circuit of constant voltage delivery pump (26), worm wheel (39) are by rotating the setting worm (41) in connecting box (37) carry out the drive regulation, the axis of rotation of worm (41) extends to the lateral surface of under casing (10).

6. The integrated water and fertilizer device with the functions of post pressurization and pressure relief as claimed in claim 1, wherein: the utility model discloses a blow-down pipe, including wash tank (12), raceway (20) are located set up rather than the blow off pipe (42) that communicate in the cavity of under casing (10) on raceway (20), set up the control valve on blow off pipe (42), set up on raceway (20) with the pipeline that mixing box (12) are linked together sets up the ooff valve on the pipeline of its connection, the pressure release pipeline of relief valve (27) with communicate between blow off pipe (42).

7. The integrated water and fertilizer device with the functions of post pressurization and pressure relief as claimed in claim 1, wherein: a separation net (43) is arranged in the mixing box (12), the separation net (43) is tightly pressed by a sealing cover fixedly arranged at the top of the mixing box (12), and the first stirring blade (18) is arranged on the upper side of the separation net (43).

8. The integrated water and fertilizer device with the functions of post pressurization and pressure relief as claimed in claim 1, wherein: and a bent pipe (44) is arranged on a pipeline connected between the expansion pipeline (24) and the pressure relief valve (27).

Technical Field

The invention belongs to agricultural equipment, and particularly relates to a water and fertilizer integrated device with post pressurization and pressure relief.

Background

Irrigation of liquid manure obtains extensive application in plain area, but to the area of hilly mountain, liquid manure irrigation still is difficult to go on, because the particularity of mountain region, lead to needing bigger pressure when carrying liquid manure, therefore can lead to the increase of cost, the area that liquid manure irrigates is general very wide, it is very troublesome all to need artifical the configuration when supplying fertile at every turn, and because the route of carrying is far away, delivery pressure is big, the inhomogeneous phenomenon of mixing appears very easily in the time of carrying fertilizer, when carrying fertilizer and water and mixing, because pipeline pressure is different between the two, probably should be for the pipeline pressure of carrying fertilizer is little, and lead to the pipeline backward flow of water to carrying fertilizer, thereby can not accomplish the mixture and the transport to water and fertilizer.

Because the pipeline of mountain region arranges that many all are the slope setting, easily after the delivery pump stop work, the liquid fertilizer of existence in the pipeline is emptied completely, and on the other hand, when the pressure that the pump provided is not enough or the delivery pump stop work after, still there is the residual pressure in the pump, and it is extravagant also can produce a large amount of costs to obtain the effect that does not need.

Disclosure of Invention

The invention aims to solve the problems and provides a water and fertilizer integrated device with post pressurization and pressure relief, which can automatically transport and configure fertilizers, ensure uniform mixing during fertilizer transportation and prevent backflow.

In order to realize the purpose, the invention adopts the technical scheme that: a rear-mounted pressurization and pressure release water and fertilizer integrated device comprises a bottom box, wherein a storage tank and a mixing box are fixedly arranged at the top of the bottom box, a plurality of storage cavities are arranged in the storage tank, a feed opening leading to the storage cavities is formed in the top of the storage tank, a plurality of sliding cavities communicated with the storage cavities are formed in the storage tank, a transportation piece is arranged in the sliding cavities in a sliding mode in an up-and-down direction and is divided into an upper part and a lower part, the lower part of the transportation piece is divided into a cup shape, one side wall far away from the storage cavities is removed, a sealing door capable of stretching up and down is arranged on the bottom wall of one storage cavity in a sliding mode, a drag hook for pushing the sealing door to shrink downwards is fixedly arranged on the lower part of the transportation piece, and a driving mechanism for driving the transportation piece to move up and down singly or simultaneously is arranged at the top of the storage tank;

the sliding cavity is communicated with the inner cavity of the mixing box through a pipeline, a first stirring blade is arranged in the inner cavity of the mixing box, and the bottom of the mixing box is communicated with a fertilizer conveying pipe;

a mixing mechanism is arranged in an inner cavity of the bottom box, the mixing mechanism comprises a water conveying pipe arranged in the bottom box, a plurality of communicated capillary tubes are arranged between the fertilizer conveying pipe and the water conveying pipe, the capillary tubes extend into the water conveying pipe, the end part of the water conveying pipe is fixedly connected with a discharging head, a protective cover surrounding the discharging head is fixedly arranged on the outer side of the discharging head, the upstream surface of the protective cover is a tip end, an opening is arranged on one side of the non-upstream surface, one end of the water conveying pipe is communicated with an extension pipeline, a second stirring blade driven by water flow is rotatably arranged in the extension pipeline, and the second stirring blade is used for stirring and mixing when rotating;

and an outlet pipeline connected with the expansion pipeline is communicated with a constant pressure delivery pump, and a pressure release valve is arranged on the pipeline connected with the constant pressure delivery pump.

Furthermore, actuating mechanism sets up including rotating the winding bobbin on the top surface of storage jar, the stay cord is convoluteed on the winding bobbin, the one end of stay cord with the top of transportation piece is connected, the other one end with the bottom of transportation piece is connected, the rotation axis of winding bobbin is to one of the central axis direction of storage jar is served and is connected drive gear, drive gear can for the axis of rotation of winding bobbin slides, the fixed footstock that sets up on the top surface of under casing, the fixed motor that sets up on the footstock, set up on the output shaft of motor can respectively with drive gear engaged with gear, the top of under casing sets up the drive gear and gear engaged's control assembly.

Furthermore, the control assembly comprises a transmission gear fixedly arranged on the top surface of the bottom box, a sliding rod which is mutually and rotatably connected with the transmission gear is arranged on the top surface of the bottom box in a sliding mode, and a permanent magnet which is attracted and repelled with the electromagnet is fixedly arranged at the end part of the sliding rod.

Furthermore, the mixing mechanism further comprises a rotating shaft fixedly arranged in the water delivery pipe, a plurality of fan blades are fixedly arranged on the rotating shaft, the rotating shaft extends into the extension pipeline and is fixedly connected with the second stirring blades, the rotating shaft extends towards one side, far away from the extension pipeline, of the extension pipeline and penetrates through the water delivery pipe, and a flywheel is fixedly arranged at the end part of the rotating shaft.

Further, connect the flabellum on the delivery outlet of constant voltage delivery pump, the vertical pipeline internal rotation of flabellum sets up the closing plate, the fixed joint box that sets up on the trailing flank of flabellum, be provided with the cavity in the joint box, the axis of rotation of closing plate extends backward and enters into in the cavity in the joint box, enter into fixed contact block that sets up in the axis of rotation in the joint box cavity, the cavity internal rotation of joint box sets up the worm wheel, a worm wheel side set up can with contact one section arc contact strip that the contact block contacted, contact block with arc contact strip is connected respectively in control the relief valve with on the circuit of constant voltage delivery pump, the worm wheel is set up by rotating the worm in the joint box drives the regulation, the rotation axial of worm the lateral surface of under casing extends out.

Furthermore, the raceway is located set up rather than the blow off pipe of intercommunication in the cavity of under casing, set up the control valve on the blow off pipe, set up on the raceway with the pipeline that the mixing box is linked together sets up the ooff valve on the pipeline of its connection, the pressure release pipeline of relief valve with communicate between the blow off pipe.

Furthermore, a separation net is arranged in the mixing box, the separation net is tightly pressed by a sealing cover fixedly arranged at the top of the mixing box, and the first stirring blade is arranged on the upper side of the separation net.

Furthermore, a bent pipe is arranged on a pipeline connected between the expansion pipeline and the pressure release valve.

The invention has the beneficial effects that: the invention provides a water and fertilizer integrated device with rear pressurization and pressure relief, which comprises a water and fertilizer integrated device 1, wherein the water and fertilizer which is conveyed out is continuously kept in a conveying pipeline through an arranged closing plate to be prevented from being emptied, so that the conveying time can be saved in the next fertilizer supply, a conveying pump can be controlled to stop and relieve pressure when the requirement of a water outlet pipeline is not met according to the requirement, and the cost is reduced.

2. Through the fertilizer storage that will dispose in the holding vessel to the transportation piece through setting up makes the fertilizer in the holding vessel enter into the mixing box and mix the configuration, reduces manual operation, and the management of being convenient for is convenient for simultaneously to the control of the volume of ratio.

3. When carrying fertilizer, through setting up capillary and safety cover, prevent because the too big backward flow of fertilizer or water to fertilizer conveying intraductal that leads to of pressure of the rivers of carrying, simultaneously because the most advanced structure of the upstream face of safety cover protects the delivery port of capillary, still can be fast because the velocity of flow in the safety cover outside, with fertilizer follow capillary siphonage, the fertilizer and the water that enter into in the extension pipeline carry out the misce bene under the state of flow transportation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a portion A of FIG. 1;

FIG. 3 is a schematic view of a portion of the enlarged structure at B in FIG. 1;

FIG. 4 is a schematic view of a portion of the enlarged structure at C in FIG. 1;

FIG. 5 is an enlarged view of a portion of FIG. 1 at D;

FIG. 6 is a schematic cross-sectional view taken along line E-E of FIG. 2;

FIG. 7 is a schematic cross-sectional view taken in the direction F-F of FIG. 6;

FIG. 8 is a schematic cross-sectional view of the protective cover;

fig. 9 is a perspective view of the transport member.

The text labels in the figures are represented as: 10. a bottom box; 11. storing the tank; 12. a mixing box; 13. a storage chamber; 14. a slide chamber; 15. a transport member; 16. a closing door; 17. pulling a hook; 18. a first stirring blade; 19. a fertilizer conveying pipe; 20. a water delivery pipe; 21. a capillary tube; 22. discharging a stub bar; 23. a protective cover; 24. expanding the pipeline; 25. a second stirring blade; 26. a constant pressure delivery pump; 27. a pressure relief valve; 28. a winding drum; 29. pulling a rope; 30. a top seat; 31. a transmission gear; 32. an electromagnet; 33. a slide bar; 34. a rotating shaft; 35. a fan blade; 36. a closing plate; 37. a connecting box; 38. a contact block; 39. a worm gear; 40. an arc-shaped contact strip; 41. a worm; 42. a blow-off pipe; 43. a separation net; 44. bending the tube.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

As shown in the attached figures 1-9 in the specification, the specific structure of the invention is as follows: the utility model provides a liquid manure integrated device of rearmounted pressure boost and pressure release, includes the under casing 10, the fixed storage jar 11 and the mixing box 12 that sets up in top of under casing 10, set up a plurality of storage chamber 13 in the storage jar 11, specifically set up to four, be equipped with liquid fertilizer and solid fertilizer in the storage chamber 13, set up a plurality of in the storage jar 11 with the sliding chamber 14 that the storage chamber 13 is linked together, the quantity of sliding chamber 14 with the quantity of storage chamber 13 is corresponding, slide upward setting transport piece 15 in the sliding chamber 14 from top to bottom, transport piece 15 divides two parts from top to bottom, wherein the downside is divided into the cup, and keeps away from a lateral wall of storage chamber 13 and is got rid of, the diapire of transport piece 15 is the slope form to the outside, wherein describe solid fertilizer the diapire of storage chamber 13 on slide and set up the flexible closed door 16 from top to bottom, closed door 16 and installation set up the spring that promotes closed door 16 up-and down motion between the spout of closed door 16, a draw hook 17 for pushing the closing door 16 to contract downwards is fixedly arranged at the lower side part of the transporting piece 15, the draw hook 17 hooks the top of the closing door 16 and drives the closing door 16 to move downwards when following the transporting piece 15 to move downwards, when the closing door 16 moves downwards, the solid fertilizer in the storage cavity 13 can enter the transporting piece 15, and the top of the storage tank 11 is provided with a driving mechanism for driving the transporting piece 15 to move singly up and down or simultaneously;

fertilizer transported on a transportation piece 15 is communicated between the sliding cavity 14 and the inner cavity of the mixing box 12 through a pipeline and is driven by a driving mechanism to be lifted upwards, and finally the fertilizer is transported into the mixing box 12 through the pipeline to be configured, a first stirring blade 18 is arranged in the inner cavity of the mixing box 12, the bottom of the first stirring blade 18 is connected with a motor, the fertilizer entering the inner cavity of the mixing box 12 is uniformly stirred under the rotation of the first stirring blade 18, and the bottom of the mixing box 12 is communicated with a fertilizer transportation pipe 19;

a mixing mechanism is arranged in the inner cavity of the bottom case 10, the mixing mechanism comprises a water conveying pipe 20 arranged in the bottom case 10, and water is introduced into the water conveying pipe 20; the fertilizer conveying pipe 19 is provided with a conveying pump and a one-way valve for preventing fertilizer from flowing back, a plurality of capillary tubes 21 communicated with each other are arranged between the fertilizer conveying pipe 19 and the water conveying pipe 20, the capillary tubes 21 extend into the water conveying pipe 20, the end part of the water pipe 20 is fixedly connected with a material outlet head 22, a protective cover 23 which surrounds the material outlet head 22 is fixedly arranged on the outer side of the material outlet head 22, the upstream surface of the protective cover 23 is a tip, one side of the non-upstream surface is provided with an opening, when water flows through the outer side of the protective cover 23, fertilizer discharged from the capillary 21 is sucked into the water delivery pipe 20, and is transmitted together with the water entering into the water transmission pipe 20, one end of the water transmission pipe 20 is communicated with an extension pipe 24, a second stirring blade 25 driven by water flow is rotatably arranged in the expansion pipeline 24, and the second stirring blade 25 is stirred and mixed when rotating;

an outlet pipeline connected with the expansion pipeline 24 is communicated with a constant pressure delivery pump 26, and a pressure relief valve 27 is arranged on a pipeline connected with the constant pressure delivery pump.

Preferably, the driving mechanism includes winding drums 28 rotatably disposed on the top surface of the storage tank 11, the number of the winding drums 28 corresponds to the number of the sliding cavities 14, a pulling rope 29 is wound on the winding drums 28, one end of the pulling rope 29 is connected to the top end of the transport member 15, the other end is connected to the bottom end of the transport member 15, a transmission gear 31 is connected to one end of the rotating shaft of the winding drums 28 in the central axis direction of the storage tank 11, the transmission gear 31 is slidable relative to the rotating shaft of the winding drums 28, the transmission gear 31 and the protective cover 23 cannot rotate with each other, a top seat 30 is fixedly disposed on the top surface of the bottom box 10, a motor is fixedly disposed on the top seat 30, gears capable of meshing with the transmission gear 31 are disposed on the output shaft of the motor, a control component for driving the transmission gear 31 and the gears to mesh is disposed on the top of the bottom box 10, when the motor is started, the motor drives the transmission gear 31 to rotate, so that the winding drum 28 rotates, and the pulling rope 29 is pulled when the winding drum 28 rotates, so that the transportation piece 15 slides up and down in the sliding cavity 14, and the fertilizer in the storage cavity 13 is transported.

Preferably, the control assembly includes a transmission gear 31 fixedly disposed on the top surface of the bottom case 10, a sliding rod 33 rotatably connected with the transmission gear 31 is slidably disposed on the top surface of the bottom case 10, a permanent magnet attracted and repelled with the electromagnet 32 is fixedly disposed at an end of the sliding rod 33, when the electromagnet 32 is energized, the electromagnet 32 pushes the permanent magnet disposed on the sliding rod 33 to move, so that the sliding rod 33 drives the transmission gear 31 to engage with a gear disposed on a motor shaft, thereby realizing transmission of power for rotating the winding drum 28, when the rotation of the winding drum 28 needs to be stopped, the electromagnet 32 is energized in a reverse direction, the sliding rod 33 and the gear disposed on the motor shaft are controlled to disengage, and the corresponding sliding rod 33 is energized by control, thereby realizing transmission of fertilizers in different storage chambers 13.

Preferably, the mixing mechanism further comprises a rotating shaft 34 which is rotatably and fixedly arranged in the water delivery pipe 20, the rotating shaft 34 is fixedly provided with a plurality of fan blades 35, when water flow in the water delivery pipe 20 passes through the fan blades 35, the fan blades 35 are driven to rotate, the rotating shaft 34 extends into the extension pipeline 24 and is fixedly connected with the second stirring blades 25, the fan blades 35 drive the rotating shaft 34 and the second stirring blades 25 to rotate when rotating, so that fertilizer and water are stirred and mixed in the extension pipeline 24 when the water flow flows in the pipeline, the rotating shaft 34 extends towards one side, away from the extension pipeline 24, of the extension pipeline 20, and the end part of the rotating shaft is fixedly provided with a flywheel.

Preferably, the output port of the constant pressure delivery pump 26 is connected with a fan blade 35, a closing plate 36 is rotatably arranged in a vertical pipeline of the fan blade 35, a sealing plug is arranged on the closing plate 36 and the inner wall of the pipeline of the fan blade 35, a connecting box 37 is fixedly arranged on the rear side surface of the fan blade 35, a cavity is arranged in the connecting box 37, a rotating shaft of the closing plate 36 extends backwards into the cavity in the connecting box 37, a contact block 38 is fixedly arranged on the rotating shaft in the cavity in the connecting box 37, a worm wheel 39 is rotatably arranged in the cavity of the connecting box 37, a section of arc contact strip 40 which can be contacted with the contact block 38 is arranged on one side surface of the worm wheel 39, the contact block 38 and the arc contact strip 40 are respectively connected to a circuit for controlling the pressure release valve 27 and the constant pressure delivery pump 26, and after the contact block 38 is contacted with the arc contact strip 40, the circuit is connected, thereby realizing the conduction and pressure relief of the control pressure relief valve 27, stopping the constant pressure delivery pump 26, the worm wheel 39 is adjusted by a worm 41 rotatably provided in the connecting box 37, the rotating shaft of the worm 41 extends out of the outer side surface of the bottom case 10, a hand wheel is fixedly arranged at one extending end, the worm 41 drives the worm wheel 39 to rotate by rotating the hand wheel, the situation that the closing plate 36 is pushed to rotate is different when the water pressure in the fan blades 35 is different, when the water pressure is high, the closing plate 36 is pushed to rotate upwards by a large angle, and vice versa, by adjusting the position of the arc-shaped contact strip 40, the arc-shaped contact strip 40 is contacted with the contact block 38 under different pressures, namely, the on-off of the circuits of the pressure release valve 27 and the constant pressure delivery pump 26 are controlled under different pressures, that is, the pressure release and the delivery stop are controlled.

Preferably, the raceway 20 is located set up in the cavity of under casing 10 rather than the blow off pipe 42 of intercommunication, set up the control valve on the blow off pipe 42, when opening blow off pipe 42, outwards blowdown, set up on the raceway 20 with the pipeline that mixing box 12 is linked together sets up the ooff valve on its connected pipeline, when opening the ooff valve, sends into water in mixing box 12 to carry out the configuration of fertilizer, the pressure release pipeline of relief valve 27 with communicate between the blow off pipe 42, when the controlled pressure release of relief valve 27, the water through relief valve 27 passes through blow off pipe 42 and discharges.

Preferably, a separation net 43 is arranged in the mixing box 12, the separation net 43 is tightly pressed by a sealing cover fixedly arranged at the top of the mixing box 12, the first stirring blade 18 is arranged at the upper side of the separation net 43, and the separation net 43 separates the solid fertilizer and the liquid fertilizer from each other when the solid fertilizer is mixed and configured.

Preferably, a bent pipe 44 is arranged on the pipeline connected between the expansion pipeline 24 and the pressure release valve 27, and the water introduced from the second stirring blade 25 is turned over through the bent pipe 44, so that the mixing effect between the fertilizer and the water is enhanced.

The specific use mode of the invention is as follows: fertilizer is sent into the storage cavity 13 through a feeding port arranged at the top of the storage tank 11 for storage, when fertilizer is configured, a motor arranged on the top seat 30 is started, a corresponding electromagnet 32 is controlled to be electrified, a transmission gear 31 is meshed with a gear arranged on a motor shaft, the motor drives the winding drum 28 to rotate when rotating, so that the winding drum 28 winds the pull rope 29, the transportation piece 15 transports the fertilizer in the storage cavity 13 upwards,

the transported fertilizer is sent into the mixing box 12 through a pipeline arranged between the mixing box 12 and the sliding cavity 14, the fertilizer entering into the mixing box 12 is mixed with water entering into the mixing box 12 through a water delivery pipe 20, a motor connected on the first stirring blade 18 is started, the motor drives the first stirring blade 18 to rotate so as to uniformly mix the fertilizer and the water in the mixing box 12,

the feed pump connected to the fertilizer pipe 19 is controlled to start, so that the fertilizer in the mixing box 12 enters the water pipe 20 through the capillary tube 21 and is mixed with the water in the water pipe 20, under the protection of the protective cover 23, the water in the water pipe 20 is prevented from flowing back to the capillary tube 21, the water flow in the water pipe 20 drives the fan blades 35 to rotate, so as to drive the rotating shaft 34 and the second stirring blades 25 to rotate together, the second stirring blades 25 enable the fertilizer and the water to be mixed more uniformly when rotating, the constant pressure feed pump 26 is started, the constant pressure feed pump 26 drives the water and the fertilizer which are fed in to be fed to the outside to be fed and irrigated,

through rotating worm 41, make worm wheel 39 drive arc contact strip 40 and rotate, realize adjusting under different pressures control contact block 38 and arc contact strip 40 contact, when the pressure of carrying diminishes, the pivoted angle of closing plate 36 diminishes, makes contact block 38 and arc contact strip 40 contact, makes the circuit switch-on of connecting relief valve 27, constant voltage delivery pump 26 after the contact, realizes that relief valve 27 switches on the pressure release to control constant voltage delivery pump 26 stall.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.