CN114946369A

CN114946369A - Kiwi fruit is planted with fertigation device

Info

Publication number: CN114946369A
Application number: CN202210676649.XA
Authority: CN
Inventors: 王荔; 罗会; 徐特; 张雪; 王宇
Original assignee: Guizhou Fruit Research Institute Guizhou Citrus Research Institute Guizhou Characteristic Fruit And Vegetable Engineering Technology Center Guizhou Pitaya Research Institute
Current assignee: Guizhou Fruit Research Institute Guizhou Citrus Research Institute Guizhou Characteristic Fruit And Vegetable Engineering Technology Center Guizhou Pitaya Research Institute
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-08-30
Anticipated expiration: 2042-06-15
Also published as: CN114946369B

Abstract

The invention belongs to the technical field of kiwi fruit planting, and discloses an irrigation and fertilization device for kiwi fruit planting, which comprises a feeding component with two feeding parts, wherein: one feed section to achieve continuous feed of water includes a peristaltic pump; the feeding part for realizing the intermittent feeding of the fertilizer comprises a driving ring and a discharging sleeve which are coaxially sleeved on a guide column, the driving ring synchronously rotates along with the driving of a peristaltic pump, and a feeding station and a discharging station are arranged along the rotating path of the driving ring; a limit push rod is rotatably arranged at one end of the driving ring, a stop lever is axially fixed at one end of the discharge sleeve, and the stop lever is positioned at the outer side of the driving ring; a plurality of convex one-way ratchets are arranged on the outer wall of the guide column, the guide column can swing back and forth between a feeding station and a discharging station in the process that the driving ring continuously rotates through the cooperation of the one-way ratchets, the limiting push rod and the stop lever, and the guide column realizes the guiding and feeding of fertilizer when swinging to the discharging station.

Description

Kiwi fruit is planted with fertigation device

Technical Field

The invention belongs to the technical field of kiwi fruit planting, and particularly relates to an irrigation and fertilization device for kiwi fruit planting.

Background

In the existing planting technology of kiwi fruits, in order to ensure the smooth growth of kiwi fruits, two adjacent kiwi fruits need to be separated by a certain distance, and the planting mode ensures that artificial intermittent fertilization is correspondingly needed in the subsequent fertilization process, so that the fertilizer can be accurately sprayed at the position close to the root of kiwi fruits; in addition, the root system of the kiwi fruit is fleshy, so that a large amount of water cannot be irrigated around the root of the kiwi fruit when the kiwi fruit is irrigated by watering, and otherwise, the root rot phenomenon is easy to occur.

Aiming at the fertilizing and irrigating operations required in the kiwi fruit planting process, the invention particularly provides the irrigation and fertilization device for kiwi fruit planting, which integrates intermittent fertilization and continuous irrigation.

Disclosure of Invention

In order to solve the problems in the background art, the invention aims to provide the irrigation and fertilization device for kiwi fruit planting, which effectively realizes the integrated operation of intermittent fertilization and continuous irrigation, thereby ensuring the accuracy of fertilization and the sufficiency of irrigation, and avoiding the problem that the root of kiwi fruit is easy to rot due to overlarge water quantity.

In order to achieve the purpose, the invention provides the following technical scheme:

an irrigation and fertilization device for kiwi fruit planting comprises a feeding component, a feeding box and a spray head which are arranged on a walking trolley; two non-interfering positive pressure feeding cavities are formed in the feeding box, and the two positive pressure feeding cavities are used for storing water and fertilizer respectively; a feeding pipeline is connected between the feeding box and the spray head, and the feeding assembly is arranged on the feeding pipeline; the feeding assembly comprises two feeding parts, and the two feeding parts are linked to realize continuous feeding of water and intermittent feeding of fertilizer;

wherein:

one feeding part of the feeding assembly for realizing continuous feeding of water comprises a peristaltic pump;

one feeding part of the feeding assembly for realizing the intermittent feeding of the fertilizer comprises: the driving ring and the discharging sleeve are coaxially sleeved on the material guide column, the driving ring synchronously rotates along with the driving of the peristaltic pump, and a feeding station and a discharging station are arranged along the rotating path of the driving ring;

a limit push rod is rotatably arranged at one end of the driving ring, a return spring is connected between a rotating shaft of the limit push rod and the driving ring, and one end of the limit push rod limited by the return spring can be abutted against the outer surface wall of the material guide column;

the outer diameter of the discharging sleeve is larger than that of the driving ring, a stop lever is axially fixed at one end of the discharging sleeve, and the stop lever is positioned on the outer side of the driving ring;

the diameter of the guide column is smaller than the inner diameter of the driving ring, and a plurality of convex one-way ratchets are arranged on the circumferential outer wall of the guide column; the guide column can swing back and forth between a feeding station and a discharging station in the process that the driving ring continuously rotates through the matching of the one-way ratchet, the limiting push rod and the stop lever, and the guide column can realize the guide and feeding of the fertilizer when swinging to the discharging station.

Preferably, a material guide transition cavity communicated with the corresponding positive pressure feeding cavity is formed inside the material guide column, and a first material outlet is formed in one side of the material guide transition cavity; the inner diameter of the discharging sleeve is equal to the diameter of the guide column, and a second discharging hole is formed in the discharging sleeve; when the guide column swings to the discharging station, the first discharging port is communicated with the second discharging port.

Preferably, the discharging sleeve can rotate around the central axis of the material guiding column at will so as to adjust the distance between the feeding station and the discharging station.

Preferably, the device further comprises: the material guide sleeve is fixedly arranged outside the discharge sleeve, and an annular material guide cavity communicated with the second discharge port and the spray head is formed in the material guide sleeve.

Preferably, one end of the discharging sleeve, which is far away from the stop lever, is connected with a limiting sleeve in an axial sliding manner, a positioning spring is connected between the limiting sleeve and the discharging sleeve, and the limiting sleeve can be abutted and engaged with the material guide sleeve through the limitation of the positioning spring.

Preferably, the device further comprises: the feeding sleeve is fixedly installed, and a second feeding hole is formed in the feeding sleeve; the inner diameter of the feeding sleeve is equal to the diameter of the guide column, a volute spiral spring is connected between the feeding sleeve and the guide column, a first feeding hole is formed in one end of the guide transition cavity, and when the guide column is limited to swing back to a feeding station through the volute spiral spring, the first feeding hole is communicated with a second feeding hole.

Preferably, a movable discharging piston is arranged in the material guiding transition cavity, the material guiding transition cavity is divided into a material guiding cavity and a driving cavity by the discharging piston, and the first material outlet and the first material inlet are both positioned in the material guiding cavity; the driving cavity is internally provided with a limiting assembly for connecting the guide column and the discharging piston, the limiting assembly comprises a limiting part, a limiting piston and an elastic part which are sequentially connected, and the axial length of the guide cavity is adjusted and limited through the limiting assembly.

Preferably, the peristaltic pump comprises:

the device comprises a cylindrical shell which is fixedly installed, wherein an inner hose is arranged on the circumferential inner wall of the shell, and two ends of the inner hose are respectively connected with a feeding pipe communicated with a corresponding positive-pressure feeding cavity and a discharging pipe communicated with a spray head;

the rotatable rotor, the rotor with the coaxial assembly of casing, and follow the circumference equidistance of rotor is equipped with at least three can extrude the evagination piece of interior hose.

Preferably, both ends of the rotor are respectively and rotatably connected with a limiting column and a limiting frame, the limiting column and the limiting frame are respectively and axially matched with the inside and the outside of the shell in a sliding manner, the diameter of the limiting column is not smaller than the outer diameter of the rotor, and the conduction sectional area of the inner hose can be limited by adjusting the axial sliding of the limiting column.

Preferably, the peristaltic pump further comprises:

the telescopic rod is coaxially assembled with the rotor and synchronously rotates along with the rotor;

the driving wheel is sleeved on the telescopic rod and is in transmission fit with the driving ring so that the driving ring can synchronously rotate along with the driving wheel.

Compared with the prior art, the invention has the following beneficial effects:

(1) according to the invention, the feeding assembly with two linked feeding parts is arranged, and the two feeding parts respectively realize continuous feeding of water and intermittent feeding of fertilizer, so that the irrigation and fertilization requirements of kiwi fruits in the actual planting process are effectively met. Wherein, the continuous feeding of water is realized by the structure of a peristaltic pump, the intermittent feeding of fertilizer is realized by the guide column which can swing back and forth, the structure is simple, and the integrated irrigation and fertilization can be stably realized.

(2) Correspond the cover on the guide post and be equipped with drive ring, ejection of compact cover and feeding cover, specific: a volute spiral spring is connected between the feeding sleeve and the material guiding column so as to limit the feeding position of the material guiding column which starts to swing; the guide column and the driving ring are respectively provided with a one-way ratchet and a rotatable limit push rod, so that the guide column can be driven to swing from a feeding position to a discharging position in a one-way manner in the rotating process of the driving ring; the stop lever is fixed on the discharging sleeve, so that the stop lever stops the limit push rod to limit the discharging position where the guide column stops swinging, and the reciprocating swinging of the guide column is stably and effectively realized.

(3) Aiming at the drive of the peristaltic pump and the swing of the guide column, the transmission wheel and the drive ring are correspondingly matched to realize the linkage between the peristaltic pump and the guide column, and the structure is simple and stable.

(4) To above-mentioned ejection of compact cover, establish it into rotatable structural condition, effectively adjust guide post termination wobbling ejection of compact position from this, and then change the guide post and reciprocate the time interval that the swing in-process formed, the corresponding make the overall device can carry out the adjustment of fertilizer ejection of compact interval time according to the difference of distance between two adjacent kiwi fruits in a flexible way to guarantee the accuracy of fertilization position.

(5) Aiming at the discharge sleeve, a material guide sleeve is fixedly installed outside the discharge sleeve in a matching way, so that: on the one hand, the stable material guiding between the discharging sleeve and the spray head can be effectively realized, and on the other hand, the stable positioning after the discharging sleeve rotates can be realized by utilizing the structures such as the limiting sleeve.

(6) Aiming at the material guiding column, a discharging piston is arranged in the material guiding column, so that positive pressure material guiding of the material guiding column can be effectively realized. In addition, this ejection of compact piston corresponds the cooperation and has spacing subassembly to this guide chamber actual size that is used for keeping in fertilizer in can effectively changing the guide post, and then the actual fertilization volume of nimble adjustment fertilization at every turn.

(7) The peristaltic pump is characterized in that the peristaltic pump is internally and correspondingly provided with the rotor and the limiting column which can axially slide, wherein the rotor and the inner hose are matched to effectively realize continuous feeding irrigation of water, and the conduction sectional area of the inner hose can be adjusted and limited through the axial sliding of the limiting column, so that the water yield in the continuous irrigation process can be flexibly adjusted.

Drawings

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

FIG. 2 is a schematic view of the feed assembly of the present invention;

FIG. 3 is a cross-sectional view of the driving ring, the material guiding column, the discharging sleeve, the material guiding sleeve and the feeding sleeve in cooperation according to the present invention;

FIGS. 4-9 are schematic diagrams of the engagement of the drive ring, guide posts and discharge sleeve in the present invention;

FIG. 10 is a schematic view of the structure of the material guiding column, the material discharging sleeve and the material guiding sleeve;

FIG. 11 is a cross-sectional view of a peristaltic pump of the present invention;

FIG. 12 is a schematic view of the rotor and inner hose of the present invention;

FIG. 13 is a schematic view of the structure of the driving wheel and the driving ring in the present invention;

FIG. 14 is a schematic view showing the internal structure of a supply tank according to the present invention;

in the figure: a feeding assembly-10; a supply tank-20; spray head-30;

a peristaltic pump-1; a housing-11; an inner hose-12; a rotor-13; a limiting column-14; a limiting frame-15; a telescopic rod-16; a transmission wheel-17; a drive ring-2; a limit push rod-21; a material guiding column-3; a one-way ratchet-31; a material guiding transition cavity-32; a first discharge port-33; a first feed port-34; a discharge piston-35; a limiting piston-36; a discharging sleeve-4; a stop lever-41; a second discharge port-42; a stop collar-43; a material guide sleeve-5; a feeding sleeve-6; a second inlet port-61.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the irrigation and fertilization device for kiwi fruit planting provided by the invention comprises a feeding assembly 10, a feeding box 20 and a spray head 30 which are arranged on a walking trolley.

Specifically, as shown in fig. 14, two non-interfering positive pressure feeding cavities are formed inside the feeding box 20, and the two positive pressure feeding cavities are used for storing water and fertilizer, respectively. Based on the structure shown in the figure, the two positive pressure feeding cavities form positive pressure feeding through the cooperation of the extrusion spring and the material pushing plate, so that the feeding box 20 is ensured to have positive pressure type power for continuously feeding outwards.

Further, a feeding pipeline is connected between the feeding tank 20 and the spray head 30, and the feeding assembly 10 is arranged on the feeding pipeline; the feeding assembly 10 comprises two feeding parts, and the two feeding parts are linked to realize continuous feeding of water and intermittent feeding of fertilizer.

From the above, the device in the present invention utilizes a walking-based cart to realize mobile fertigation, and utilizes two feeding portions of a feeding assembly to perform continuous feeding of water and intermittent feeding of fertilizer during the movement, wherein:

the continuous feeding of water enables the whole device to effectively realize the continuous irrigation of the kiwi fruits in the walking process, and particularly, the continuous irrigation mode is selected, so that the water quantity required in the growth process of the kiwi fruits is ensured, and the problem of root rot caused by the fact that a large amount of water is intensively irrigated around the roots of the kiwi fruits is avoided;

intermittent type pay-off of fertilizer makes the whole device carry out the fertilization of interval nature at the walking in-process, makes the fertilization position can accurately correspond to the root of kiwi fruit from this, and then guarantees that fertilizer can be fully absorbed by the kiwi fruit.

In addition, water and fertilizer all adopt same shower nozzle 30 to derive, guarantee based on this that fertilizer can discharge smoothly under the impact of rivers, and then effectively avoided the problem of shower nozzle 30 jam.

As shown in fig. 2 to 13, the following steps:

one feed section of the feed assembly 10 that achieves continuous feed of water includes a peristaltic pump 1. As can be seen with particular reference to fig. 11 and 12, the peristaltic pump 1 comprises a fixedly mounted cylindrical housing 11 and a rotatable rotor 13. An inner hose 12 is arranged on the circumferential inner wall of the shell 11, and both ends of the inner hose 12 are respectively connected with a feeding pipe communicated with the corresponding positive pressure feeding cavity and a discharging pipe communicated with the spray head 30; the rotor 13 is coaxially assembled with the housing 11 and is provided with at least three protrusions capable of squeezing the inner hose 12 at equal intervals in the circumferential direction of the rotor 13. As can be seen, the outer convex part is preferably a pressing roller which is rotatably mounted on the rotor 13, so that the outer convex part can smoothly revolve to press the inner hose 12 when the rotor 13 rotates, and friction generated when the outer convex part presses the inner hose 12 can be reduced based on the rotation of the outer convex part, and the abrasion of the inner hose 12 is further reduced.

One feeding part of the feeding assembly 10 for realizing the intermittent feeding of the fertilizer comprises a driving ring 2, a discharging sleeve 4 and a feeding sleeve 6 which are coaxially sleeved on a guide column 3. Wherein the driving ring 2 rotates synchronously with the peristaltic pump 1, and a feeding station and a discharging station are arranged along the rotating path of the driving ring 2.

Specifically, the method comprises the following steps:

a limit push rod 21 is rotatably arranged at one end of the drive ring 2, a return spring is connected between a rotating shaft of the limit push rod 21 and the drive ring 2, one end of the limit push rod 21 limited by the return spring can be abutted against the outer surface wall of the guide post 3, and the other end can extend to the outside of the discharge sleeve 4;

the diameter of the guide column 3 is smaller than the inner diameter of the driving ring 2, and a plurality of convex one-way ratchets 31 are arranged on the circumferential outer wall of the guide column 3; in addition, a material guiding transition cavity 32 communicated with the corresponding positive pressure feeding cavity is formed inside the material guiding column 3, a first material outlet 33 is formed at one side of the material guiding transition cavity 32, and a first material inlet 34 is formed at one end of the material guiding transition cavity 32;

the outer diameter of the discharge sleeve 4 is larger than that of the drive ring 2, a stop lever 41 is axially fixed at one end of the discharge sleeve 4, and the stop lever 41 is positioned outside the drive ring 2; the inner diameter of the discharging sleeve 4 is equal to the diameter of the guide column 3, and a second discharging hole 42 is formed in the discharging sleeve 4;

the feeding sleeve 6 is fixedly arranged, and a second feeding hole 61 is formed in the feeding sleeve 6; in addition, the inner diameter of the feeding sleeve 6 is equal to the diameter of the guide post 3, and a volute spring is connected between the feeding sleeve 6 and the guide post 3.

In summary, in combination with the principles shown in fig. 4-7, the material guiding column 3 can swing back and forth between the feeding station and the discharging station in the process of the continuous rotation of the driving ring 2 by the cooperation of the spiral spring, the one-way ratchet 31, the limit push rod 21 and the stop rod 41, specifically: when the guide column 3 swings to the discharging station, the first discharging port 33 is communicated with the second discharging port 42, and when the guide column 3 swings back to the feeding station, the first feeding port 34 is communicated with the second feeding port 61.

In the schematic diagrams shown in fig. 4-7, a is a state diagram of the one-way ratchet 31, the limit push rod 21 and the stop lever 41, b is a state diagram of the guide column 3 and the feeding sleeve 6, c is a schematic diagram of the guide column 3 and the discharging sleeve 4, and the states shown in the three diagrams a-b-c correspond to each other. Specifically, the method comprises the following steps:

in fig. 4, the limit push rod 21 rotates clockwise with the driving ring 2 to a state of meshing with the one-way ratchet 31, in which the driving ring 2 is not pushed, and correspondingly the guide pillar 3 is limited by the spiral spring to be in a discharging station, namely, a state that the first feed opening 34 is communicated with the second feed opening 61 as shown in fig. 4 b;

in fig. 5, the limit push rod 21 continues to rotate clockwise along with the driving ring 2, at this time, the limit push rod 21 pushes the one-way ratchet 31, so that the guide pillar 3 rotates clockwise along with the driving ring 2 synchronously until the guide pillar rotates to the discharging position shown in fig. 5, and correspondingly, in fig. 5c, the first discharging hole 33 is communicated with the second discharging hole 42. In the position shown in fig. 5, the driving ring 2 continues to rotate clockwise, and at this time, the limit push rod 21 is blocked by the blocking rod 41, so that the blocking rod 41 generates counterclockwise rotation itself, and under the action of the rotation, one end of the blocking rod 41 contacting the one-way ratchet 31 is gradually raised outwards, i.e. the blocking rod 41 and the one-way ratchet 31 are gradually separated, and the first discharge hole 33 is still communicated with the second discharge hole 42 in the changing process, so that the size of the second discharge hole 42 is set to be larger than that of the first discharge hole 33. In addition, the spiral spring is deformed to accumulate force in the whole process.

In fig. 6, the limit push rod 21 is shown in a critical state of engaging with the one-way ratchet 31, and in this state, if the drive ring 2 continues to rotate clockwise, the limit push rod 21 is completely disengaged from the one-way ratchet 31. Once the limit push rod 21 is separated from the one-way ratchet 31, the space between the guide pillar 3 and the driving ring 2 is not limited, and the guide pillar 3 is driven to swing back to the discharging station shown in fig. 4 under the resilience of the spiral spring. After the limit push rod 21 is completely separated from the one-way ratchet 31, the drive ring 2 continues to rotate clockwise so that the limit push rod 21 can be separated from the stop lever 41, and after the limit push rod 21 can be separated from the stop lever 41, the stop lever 41 can be rotated and reset under the resilience of the reset spring.

In fig. 7, that is, a state is shown in which the stop lever 41 is again engaged with the one-way ratchet 31 after being returned to the original position, in this state, the drive ring 2 continues to rotate clockwise in the position shown in fig. 7, and the swing of the guide pillar 3 is performed again according to the same change principle as shown in fig. 4, 5 and 6, and the guide pillar 3 performs the feeding and discharging of the fertilizer only when it is located at the discharging station shown in fig. 5 and 6, thereby effectively realizing the intermittent fertilization based on the above principle.

Preferably, in order to realize the linkage between the two feeding portions, as shown in fig. 11 and 13 (for convenience of illustration, only one-way ratchet 31 is shown in fig. 13), a specific embodiment is provided in the present invention:

one end of the rotor 13 is provided with a telescopic rod 16 coaxially assembled with the rotor 13, and the telescopic rod 16 can synchronously rotate along with the rotor 13;

the telescopic rod 16 is sleeved with a driving wheel 17, and the driving wheel 17 is in transmission fit with the driving ring 2 so that the driving ring 2 rotates synchronously with the driving wheel 17.

Specifically, as for the transmission fit between the transmission wheel 17 and the driving ring 2, a belt, a chain, a gear or the like can be used for transmission, and fig. 13 only shows the transmission manner of the belt, so as to effectively realize the linkage between the two feeding portions of the feeding assembly 10. In addition, as for the driving rotation of the rotor 13, one of them can be driven by a motor, and the other can be driven by connecting a transmission belt between the wheels of the walking trolley and the rotating shaft of the rotor 13.

Specifically, as for the driving manner of the second driving manner, it can be known from the principle of fig. 8 that only one-way driving is formed between the material guiding column 3 and the driving ring 2 by using the cooperation of the one-way ratchet 31 and the limit push rod 21, so that the whole device is ensured to perform fertilization and irrigation operations only when the walking trolley moves forward, the whole peristaltic pump 1 and the driving ring 2 are driven reversely when the walking trolley moves backward, and at this time, no water and/or fertilizer is led out from the spray head 30, thereby effectively avoiding the problem of repeated fertigation when the whole device moves backward.

In summary, the following preferred embodiments are provided in the present invention with respect to the specific configurations disclosed above

Preferred embodiment 1

In the present invention, the following preferred embodiment is provided for the discharging sleeve 4:

the material discharging sleeve 4 can rotate around the central axis of the material guiding column 3 at will to adjust the distance between the feeding station and the material discharging station.

It can be known from the principle shown in fig. 9 that the discharging sleeve 4 can rotate at any angle, and when rotating, the discharging sleeve can drive the stop lever 41 and the second discharging hole 42 to rotate synchronously, so that the distance between the second feeding hole 61 (feeding station) and the second discharging hole 42 (discharging station) can be effectively adjusted, and the swing amplitude of the guiding column 3 can be further changed. Wherein, the swing amplitude of the material guiding column 3 of the structure shown in the left diagram of fig. 9 is obviously smaller than that of the structure shown in the right diagram of fig. 9.

It is concrete, when guaranteeing that the slew velocity of drive ring 2 and the swing speed of guide post 3 are unchangeable, the distance increase between feeding station and the ejection of compact station, then can lead to the ejection of compact interval time of guide post 3 to increase, the distance increase that corresponding whole walking dolly gos forward in interval time, the interval distance increase between the position of fertilizeing adjacent twice promptly, be applicable to the planting distance of the difference between two adjacent kiwi fruits with this flexibility, and then guarantee that fertilizer can accurately be spilt around the root of kiwi fruit.

In this embodiment, further, the material guiding sleeve 5 fixedly installed is sleeved outside the material discharging sleeve 4, and an annular material guiding cavity communicating the second material discharging hole 42 with the spraying head 30 is formed in the material guiding sleeve 5, so as to ensure that the effective material guiding between the material discharging sleeve 4 and the spraying head 30 is not affected when the material discharging sleeve rotates to any angle.

In addition, a limiting sleeve 43 is connected to one end of the discharging sleeve 4, which is far away from the stop lever 41, in an axial sliding manner, a positioning spring is connected between the limiting sleeve 43 and the discharging sleeve 4, and the limiting sleeve 43 can be abutted and engaged with the material guiding sleeve 5 through the limitation of the positioning spring.

As can be seen from the above, the specific adjustment operation for rotating the discharging sleeve 4 is: the limiting sleeve 43 is pulled to be away from the material guiding sleeve 5, the positioning spring is stretched at the moment, the limiting sleeve 43 and the discharging sleeve 4 are in a rotatable state, and the limiting sleeve 43 is rotated to drive the discharging sleeve 4 to rotate and adjust. After the adjustment is accomplished, loosen stop collar 43, the location spring kick-backs and makes stop collar 43 and guide sleeve 5 support tight meshing, wherein guide sleeve 5 fixed mounting, and stop collar 43 meshes with guide sleeve 5 again, from this to rotating back stop collar 43 and ejection of compact cover 4 formation injectedly, and then can effectively avoid producing above-mentioned guide post 3 can drive ejection of compact cover 4 and produce wobbling phenomenon at the swing in-process to realize overall structure's stable cooperation.

Preferred embodiment 2

In the present invention, the following preferred embodiment is provided for the above-mentioned guide column 3:

a movable discharging piston 35 is arranged in the material guiding transition cavity 32, the material guiding transition cavity 32 is divided into a material guiding cavity and a driving cavity by the discharging piston 35, and the first material outlet 33 and the first material inlet 34 are both positioned in the material guiding cavity;

the driving cavity is internally provided with a limiting assembly for connecting the guide post 3 with the discharging piston 35, the limiting assembly comprises a limiting part, a limiting piston 36 and an elastic part which are sequentially connected, and the axial length of the guide cavity is limited by adjusting the limiting assembly.

As shown in fig. 3, the limiting member is preferably a threaded rod, the threaded rod penetrates through one end of the guide pillar 3, and the threaded rod is rotatably connected to the limiting piston 36, the elastic member is preferably a compression spring, the compression spring is connected between the discharging piston 35 and the limiting piston 36, and the elastic force provided by the compression spring is smaller than the positive pressure feeding pressure of the corresponding positive pressure feeding cavity. Based on this:

the threaded rod is rotated, and the length of the threaded rod extending into the material guide transition cavity 32 is adjusted by utilizing the screw transmission between the threaded rod and the material guide column 3, so that the positioning position of the limiting piston 36 is changed. When the limiting piston 36 moves towards the direction of the material guide cavity, the axial length of the material guide cavity is reduced, and the amount of fertilizer temporarily stored in the corresponding material guide cavity is reduced; when the limiting piston 36 moves towards the direction of the driving cavity, the axial length of the material guide cavity is increased, and the amount of fertilizer temporarily stored in the corresponding material guide cavity is increased.

When the material guiding column 3 is positioned at the feeding station, the fertilizer can smoothly enter the material guiding cavity of the material guiding transition cavity 32 by the communication between the second feeding hole 61 and the first feeding hole 34, and the discharging piston 35 is pushed to extrude the elastic member.

When the material guiding column 3 swings from the feeding station to the discharging station, the first feeding hole 34 and the first discharging hole 33 only keep sealed based on the limitation of the feeding sleeve 6 and the discharging sleeve 4, so that the fertilizer can be temporarily stored in the material guiding cavity of the material guiding transition cavity 32.

When the material guiding column 3 is positioned at the material discharging station, the material guiding cavity of the material guiding transition cavity 32 is in an open state by the communication between the first material outlet 33 and the second material outlet 42, and in this state, the material discharging piston 35 is driven to approach the first material outlet 33 based on the resilience of the elastic member, so that the fertilizer temporarily stored in the material guiding cavity is led out to the spray head 30 through the first material outlet 33 and the second material outlet 42.

In addition, in the present invention, regarding the arrangement of the limiting member and the elastic member, the limiting member may be arranged between the discharging piston 35 and the limiting piston 36, in which case the limiting member may be preferably an electric telescopic rod, and the elastic member may still be preferably a compression spring.

Preferred embodiment three

With respect to the peristaltic pump 1 described above, a preferred embodiment is provided in the present invention as follows:

the two ends of the rotor 13 are respectively rotatably connected with a limiting column 14 and a limiting frame 15, the limiting column 14 and the limiting frame 15 are respectively in sliding fit with the inside and the outside of the shell 11 along the axial direction, the diameter of the limiting column 14 is not smaller than the outer diameter of the rotor 13, and the conduction sectional area of the inner hose 12 can be limited through the axial sliding adjustment of the limiting column 14.

In this embodiment, as can be seen from fig. 11, the inner hose 12 is attached to the inner wall of the housing 11 along the axial direction, and the axial width of the inner hose is not greater than the axial length of the housing 11, when one end of the limiting column 14 slides towards the inside of the housing 11, the outer wall of the limiting column 14 presses the inner hose 12, so that part of the inner hose 12 is limited between the outer wall of the limiting column 14 and the inner wall of the housing 11, and correspondingly, because the diameter of the limiting column 14 is not smaller than the outer diameter of the rotor 13, the part of the inner hose 12 pressed by the limiting column 14 cannot perform water guiding, thereby effectively changing the conduction cross-sectional area of the inner hose 12.

Specifically, when the cross-sectional area of the inner tube 12 decreases, the amount of water delivered per unit time decreases, whereas when the cross-sectional area of the inner tube 12 increases, the amount of water delivered per unit time increases, and the irrigation water amount of the entire device is flexibly adjusted based on this.

In addition, based on the cooperation of spacing post 14 and spacing frame 15, can guarantee that rotor 13 is located one side of spacing post 14 all the time, and then make rotor 13 correspond with the partial interior hose 12 that keeps conducting on all the time, then can effectively carry out the continuous ejection of compact irrigation of water along with rotor 13 of rotor continuously rotates.

As can be seen from the above, in the present embodiment, when the conduction cross-sectional area of the inner hose 12 is adjusted, the entire rotor 13 needs to move along the axial direction, and the telescopic rod 16 is correspondingly set to include an inner rod and an outer rod which can slide relatively in the axial direction, wherein the inner rod is connected with the rotor 13, and the outer rod is connected with the driving wheel 17, so that the movement of the rotor 13 and the transmission of the driving wheel 17 can be effectively ensured without interfering with each other.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The irrigation and fertilization device for kiwi fruit planting is characterized by comprising a feeding assembly (10), a feeding box (20) and a spray head (30), wherein the feeding assembly, the feeding box and the spray head are mounted on a walking trolley; two non-interfering positive pressure feeding cavities are formed in the feeding box (20), and the two positive pressure feeding cavities are used for storing water and fertilizer respectively; a feeding pipeline is connected between the feeding box (20) and the spray head (30), and the feeding assembly (10) is arranged on the feeding pipeline; the feeding assembly (10) comprises two feeding parts, and the two feeding parts are linked to realize continuous feeding of water and intermittent feeding of fertilizer;

wherein:

one feeding part of the feeding assembly (10) for realizing continuous feeding of water comprises a peristaltic pump (1);

a feeding section of the feeding assembly (10) for effecting intermittent feeding of fertilizer comprises: the device comprises a driving ring (2) and a discharging sleeve (4) which are coaxially sleeved on a guide column (3), wherein the driving ring (2) synchronously rotates along with the driving of a peristaltic pump (1), and a feeding station and a discharging station are arranged along the rotating path of the driving ring (2);

a limit push rod (21) is rotatably arranged at one end of the driving ring (2), a return spring is connected between a rotating shaft of the limit push rod (21) and the driving ring (2), and one end of the limit push rod (21) limited by the return spring can be abutted against the outer surface wall of the guide post (3);

the outer diameter of the discharging sleeve (4) is larger than that of the driving ring (2), a stop lever (41) is axially fixed at one end of the discharging sleeve (4), and the stop lever (41) is positioned on the outer side of the driving ring (2);

the diameter of the guide column (3) is smaller than the inner diameter of the driving ring (2), and a plurality of convex one-way ratchets (31) are arranged on the circumferential outer wall of the guide column (3); the guide column (3) can swing back and forth between a feeding station and a discharging station in the process that the driving ring (2) continuously rotates through the matching of the one-way ratchet (31), the limiting push rod (21) and the stop lever (41), and the guide column (3) swings to the discharging station to realize the guiding and feeding of fertilizer.

2. The fertigation device for kiwi fruit planting according to claim 1, wherein:

a material guide transition cavity (32) communicated with the corresponding positive pressure feeding cavity is formed in the material guide column (3), and a first discharge hole (33) is formed in one side of the material guide transition cavity (32);

the inner diameter of the discharging sleeve (4) is equal to the diameter of the guide column (3), and a second discharging hole (42) is formed in the discharging sleeve (4); when the guide column (3) swings to a discharging station, the first discharging port (33) is communicated with the second discharging port (42).

3. The fertigation device for kiwi fruit planting according to claim 2, wherein: the discharging sleeve (4) can rotate around the central axis of the material guiding column (3) at will to adjust the distance between the feeding station and the discharging station.

4. The fertigation device for kiwi planting according to claim 3, further comprising: the material guide sleeve (5) is fixedly installed, the material guide sleeve (5) is sleeved outside the material discharge sleeve (4), and an annular material guide cavity communicated with the second material discharge hole (42) and the spray head (30) is formed in the material guide sleeve (5).

5. The fertigation device for kiwi fruit planting according to claim 4, wherein: one end of the discharging sleeve (4) departing from the stop lever (41) is connected with a limiting sleeve (43) in an axial sliding mode, a positioning spring is connected between the limiting sleeve (43) and the discharging sleeve (4), and the limiting sleeve (43) can be tightly abutted and meshed with the material guide sleeve (5) through limitation of the positioning spring.

6. The fertigation device for kiwi planting according to any one of claims 2-5, further comprising: the feeding device comprises a feeding sleeve (6) fixedly installed, and a second feeding hole (61) is formed in the feeding sleeve (6);

the inner diameter of the feeding sleeve (6) is equal to the diameter of the guide column (3), a volute spiral spring is connected between the feeding sleeve (6) and the guide column (3), a first feeding hole (34) is formed in one end of the guide transition cavity (32), and the volute spiral spring limits the guide column (3) to swing back to a feeding station, and the first feeding hole (34) is communicated with a second feeding hole (61).

7. The fertigation device for kiwi planting according to claim 6, wherein:

a movable discharging piston (35) is arranged in the material guiding transition cavity (32), the material guiding transition cavity (32) is divided into a material guiding cavity and a driving cavity through the discharging piston (35), and the first discharging hole (33) and the first feeding hole (34) are both positioned in the material guiding cavity;

the driving cavity is internally provided with a limiting assembly for connecting the material guide column (3) with the discharging piston (35), the limiting assembly comprises a limiting part, a limiting piston (36) and an elastic part which are sequentially connected, and the axial length of the material guide cavity is adjusted and limited through the limiting assembly.

8. The fertigation device for kiwi planting according to claim 1, characterized by that said peristaltic pump (1) comprises:

the device comprises a cylindrical shell (11) which is fixedly installed, wherein an inner hose (12) is arranged on the circumferential inner wall of the shell (11), and two ends of the inner hose (12) are respectively connected with a feeding pipe communicated with a corresponding positive-pressure feeding cavity and a discharging pipe communicated with a spray head (30);

a rotatable rotor (13), the rotor (13) and the shell (11) are coaxially assembled, and at least three convex parts capable of extruding the inner hose (12) are arranged at equal intervals along the circumferential direction of the rotor (13).

9. The fertigation device for kiwi fruit planting according to claim 8, wherein: the two ends of the rotor (13) are respectively and rotatably connected with a limiting column (14) and a limiting frame (15), the limiting column (14) and the limiting frame (15) are respectively in sliding fit with the inside and the outside of the shell (11) in the axial direction, the diameter of the limiting column (14) is not smaller than the outer diameter of the rotor (13), and the conducting sectional area of the inner hose (12) can be limited through axial sliding adjustment of the limiting column (14).

10. The fertigation device for kiwi planting according to claim 8 or 9, characterized by that said peristaltic pump (1) further comprises:

a telescopic rod (16) coaxially assembled with the rotor (13), and the telescopic rod (16) rotates synchronously with the rotor (13);

the driving wheel (17) is sleeved on the telescopic rod (16), and the driving wheel (17) is in transmission fit with the driving ring (2) so that the driving ring (2) can synchronously rotate along with the driving wheel (17).