Water and fertilizer integrated irrigation device and method for greening and maintaining gardens

Abstract

The application provides a water and fertilizer integrated irrigation device and method for green maintenance garden, and relates to the field of garden greening large tree root irrigation. The water and fertilizer integrated irrigation device for green maintenance garden comprises a caterpillar traveling trolley, further comprises a supporting assembly installed on the caterpillar traveling trolley, the supporting assembly can adjust the angle relative to the caterpillar traveling trolley, a soil breaking assembly is installed in the supporting assembly, a hydraulic assembly is installed at one end of the supporting assembly, and the hydraulic assembly is used for pressing the soil breaking assembly, so that the soil breaking assembly extends out of the supporting assembly and is inserted into the plant root position in the soil. The water and fertilizer integrated irrigation device and method for green maintenance garden, by setting the soil breaking assembly, the soil breaking assembly can be deeply inserted into the soil and directly reach the large tree root under the action of the hydraulic assembly, the opening of the protection shell can be realized by using the hydraulic cylinder, the opened protection shell can realize soil loosening near the large tree root, and a good ventilation effect can be achieved at the root part of the soil compaction.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of garden greening large tree root irrigation, in particular to a water and fertilizer integrated irrigation device and method for greening and maintaining gardens. BACKGROUND

[0002] In the process of planting garden seedlings, in order to ensure the normal growth of garden seedlings, sufficient water must be supplied to garden seedlings. Under natural conditions, due to insufficient rainfall or uneven distribution, the water demand of garden seedlings cannot be met, so artificial irrigation is necessary to make up for the lack of natural rainfall. The prior art often uses sprinkling irrigation or drip irrigation technology to irrigate seedlings. Sprinkling irrigation is a method of spraying water with a certain pressure into the air, forming small water droplets or mist, and falling on plants and the ground. Drip irrigation is a method of slowly applying water to the root zone of plants in the form of water droplets or fine streams.

[0003] In particular, some garden greening not only includes shrubs or small trees, but also some ancient trees or large trees. When the tree body of a large tree appears to be weak, one of the main reasons is that the growth environment of the root system of the large tree has changed adversely; mainly in terms of water, gas, nutrients, etc. Specifically, some large trees grow weakly, with small and yellow leaves in normal seasons.

[0004] Different repair methods are needed for different reasons for weakening. For example, if a large tree is weakened due to damage or decay of the trunk, it needs to be cleaned, brushed with a surface agent, and plugged. If it is due to disease and insect pests, it needs to be treated. If it is due to soil compaction and small growth space, it is difficult for water to infiltrate, and it is difficult for soil gas exchange, the measures for large tree rejuvenation are usually to remove weeds, loosen soil, drill holes and bury aeration pipes to increase aeration, and at the same time, to bury and irrigate nutrient solution to assist growth.

[0005] For weakening caused by insufficient aeration and nutrients, aeration pipes are usually used to irrigate liquid, directly supplying liquid or nutrient agents to the root system of the large tree. The holes provided on the outer wall of the aeration pipe are often blocked by the soil brought in during the initial irrigation, resulting in poor aeration effect and limited rejuvenation effect. After the aeration pipe is implanted, most of the time, a large amount of nutrient solution is irrigated at a time, resulting in excessive water and excessive fertility of the root system, which has a negative effect on some large trees. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a water and fertilizer integrated irrigation device and method for greening and maintaining gardens, which solves the problems raised in the above background art.

[0007] In order to achieve the above object, the present application is realized by the following technical scheme: a water and fertilizer integrated irrigation device for green maintenance garden, comprising a crawler traveling trolley, further comprising a supporting assembly installed on the crawler traveling trolley, the supporting assembly can adjust the angle relative to the crawler traveling trolley, a soil breaking assembly is installed in the supporting assembly, a hydraulic assembly is installed at one end of the supporting assembly, the hydraulic assembly is used for pressing the soil breaking assembly, so that the soil breaking assembly is stretched out from the supporting assembly and inserted into the plant root position in the soil.

[0008] The water and fertilizer integrated assembly is installed in the soil breaking assembly, the water and fertilizer integrated assembly comprises an irrigation pipe and a plurality of fertilizer pipes, the irrigation pipe is used for irrigating the plant root system after the soil breaking assembly breaks the soil, the fertilizer pipe can intermittently fill liquid fertilizer and intermittently fill high-pressure expansion gas, and is used for loosening the soil and applying fertilizer by using the instant high-pressure gas after the soil breaking assembly breaks the soil.

[0009] Preferably, the soil breaking assembly comprises a core barrel, a protective shell, a pressing assembly and a stress column, the protective shell and the pressing assembly are provided in the same number of multiple and are distributed around the outside of the core barrel, one end of the protective shell is hinged to the core barrel, the multiple protective shells can form a hollow column and wrap the core barrel, the pressing assembly is installed on the core barrel and corresponds to the protective shell, the pressing assembly is used for opening the protective shell relative to the core barrel, the stress column is fixed at the end of the core barrel outside the protective shell, and the output end of the hydraulic assembly is fixed to the end of the stress column away from the core barrel.

[0010] Preferably, the pressing assembly comprises a hydraulic cylinder, a rack plate, a guide rail and a cam, the hydraulic cylinder and the guide rail are both fixed to the end of the core barrel, the rack plate is clamped on the guide rail and is in sliding connection with the guide rail, the cam is in rotary connection with the guide rail, the rim of the cam is provided with a gear, the rack plate is in meshing with the gear, and the hydraulic cylinder is stretched to drive the cam to rotate by the rack plate and lift the protective shell by the cam.

[0011] Preferably, one end of the protective shell is conical, the end of the multiple protective shells can be combined into a conical shape after being folded, the inner wall of the protective shell is provided with a lubricating block corresponding to the cam, and the inner wall of the protective shell is further provided with a reinforcing rib.

[0012] Preferably, the irrigation pipe is installed in the core barrel, the fertilizer pipe is fixed outside the core barrel and is distributed around the irrigation pipe, the end of the irrigation pipe away from the core barrel is in the conical structure of the protective shell, the end of the irrigation pipe is provided with a horizontal hole, one side of the fertilizer pipe away from the irrigation pipe is provided with a plurality of air holes, and the air holes of the fertilizer pipe are directed to the gap between the two adjacent protective shells.

[0013] Preferably, the water and fertilizer integrated assembly further comprises a lead-through ring and a high-pressure gas circuit, the lead-through ring is connected and leads through the multiple fertilizer pipes, and the high-pressure gas circuit is connected with the lead-through ring through an electromagnetic valve.

[0014] The water and fertilizer integrated assembly further comprises a pump and a water and fertilizer pipeline, the pump is connected with the plurality of fertilizer pipes, and the water and fertilizer pipeline is connected with the pump.

[0015] Preferably, the output end of the hydraulic cylinder is fixedly installed with a vibrator, and the vibrator is connected with one end of the rack plate.

[0016] Preferably, the soil breaking assembly further comprises a sealing sleeve, one end of the sealing sleeve is fixed on the stress column, and the other end of the sealing sleeve is fixedly sleeved on the end of the protection shell.

[0017] Preferably, the support assembly comprises a square frame, and the stress column and the plurality of protection shells are arranged in the square frame and are in sliding connection with the square frame.

[0018] A water and fertilizer integrated irrigation method for green maintenance gardens comprises the following steps:

[0019] S1: controlling the crawler traveling vehicle to drive to the vicinity of a large tree needing irrigation and fertilization, and finding the root of the large tree;

[0020] S2: controlling the hydraulic assembly to generate force and inserting the whole formed by the stress column and the protection shell after being folded into the soil until the protection shell is inserted to the position of the root of the large tree;

[0021] S3: all the hydraulic cylinders are stretched, the cam is rotated and the protection shell is gradually lifted, and the protection shell is separated to form a gap in the soil;

[0022] S4: after the protection shell is opened to a certain gap, the electromagnetic valve sends the compressed gas in the high-pressure gas circuit into a part of the fertilizer pipes to form a gas gun and expand the soil;

[0023] S5: after the soil is loosened, the pump supplies the liquid fertilizer into the fertilizer pipes, the compressed gas gun is sent again to spray the liquid fertilizer in the fertilizer pipes, the compressed gas and the liquid fertilizer are alternately sent into the fertilizer pipes, and at the same time, the irrigation pipe starts to send water to the root of the plant.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] The water and fertilizer integrated irrigation device and method for green maintenance gardens, through the setting of the soil breaking assembly, the soil breaking assembly can be deeply inserted into the soil and directly reach the root of the large tree under the action of the hydraulic assembly, the protection shell can be opened by the hydraulic cylinder, the opened protection shell can loosen the soil near the root of the large tree, and good ventilation effect can be achieved at the root system part of the hardened soil.

[0026] The water and fertilizer integrated irrigation device and method for the afforestation maintenance garden, by setting the water and fertilizer integrated assembly, cooperating with the soil breaking assembly, after the protection shell is opened, the soil is loosened by using the instant compressed air, thereby the ventilation effect of the soil can be improved, in combination with the liquid fertilizer, the liquid fertilizer can be uniformly sprayed into the soil near the plant root system, the soil environment near the root system is improved, the fertilization effect is good, not blocked, and the local excessive vigor situation does not appear.

[0027] The water and fertilizer integrated irrigation device and method for the afforestation maintenance garden, by setting the water and fertilizer integrated assembly, after the soil is transported, the irrigation pipe can more effectively irrigate the large tree root system part, the water flow dispersion effect is better, and the large tree root system is better absorbed to the irrigation water.

[0028] The water and fertilizer integrated irrigation device and method for the afforestation maintenance garden, by setting the track traveling trolley, the required maintenance tree can be visually operated by manned or unmanned operation directly in the afforestation garden, and the intelligentization can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structural schematic view of the present application;

[0030] Figure 2 It is a front view of the structure of the present application;

[0031] Figure 3 It is a structural view of the support assembly and the hydraulic assembly of the present application;

[0032] Figure 4 It is a state structure of the soil breaking assembly of the present application Figure 1 ;

[0033] Figure 5 It is a state structure of the soil breaking assembly of the present application Figure 2 ;

[0034] Figure 6 It is a state structure of the soil breaking assembly of the present application Figure 3 ;

[0035] Figure 7 It is a structural schematic view of the water and fertilizer integrated assembly of the present application;

[0036] Figure 8 It is an enlarged view of the structure at A in the present application Figure 7 ;

[0037] Figure 9 It is a partial structural view of the water and fertilizer integration of the present application.

[0038] In the figure: 1, crawler traveling trolley; 2, support assembly; 201, square box; 3, soil breaking assembly; 301, core barrel; 302, protective shell; 303, top pressing assembly; 3031, hydraulic cylinder; 3032, rack plate; 3033, guide rail; 3034, cam; 3035, gear; 3036, vibrator; 304, force column; 305, lubricating block; 306, reinforcing rib; 307, sealing sleeve; 4, hydraulic assembly; 5, water and fertilizer integrated assembly; 501, irrigation pipe; 502, fertilization pipe; 503, transverse hole; 504, air hole; 505, conductive ring; 506, high-pressure gas path; 507, electromagnetic valve; 508, pump; 509, water and fertilizer pipeline. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0041] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0043] As Figures 1-9As shown, a water and fertilizer integrated irrigation device for greening maintenance garden, comprising a crawler traveling trolley 1, further comprising a supporting assembly 2 installed on the crawler traveling trolley 1, the supporting assembly 2 can adjust the angle relative to the crawler traveling trolley 1, a soil breaking assembly 3 is installed in the supporting assembly 2, one end of the supporting assembly 2 is installed with a hydraulic assembly 4, the hydraulic assembly 4 is used to press the soil breaking assembly 3, so that it extends out of the supporting assembly 2 and inserts into the plant root position in the soil.

[0044] A water and fertilizer integrated assembly 5 is installed in the soil breaking assembly 3, the water and fertilizer integrated assembly 5 comprises an irrigation pipe 501 and a plurality of fertilizer pipes 502, the irrigation pipe 501 is used to irrigate the plant root system after the soil breaking assembly 3 breaks the soil, the fertilizer pipe 502 can intermittently fill in liquid fertilizer and intermittently fill in high-pressure expanding gas, which is used to loosen the soil and apply fertilizer by using instant high-pressure gas after the soil breaking assembly 3 breaks the soil.

[0045] The crawler traveling trolley 1 is a special mobile robot platform integrating modern sensor technology, artificial intelligence, robot technology, Internet of Things and big data analysis, adopts a crawler chassis, is specially designed for complex terrains such as nursery, flower bed, park green land, slope and muddy ground, the crawler chassis disperses its weight on a larger contact area, so that it can easily drive over soft soil, sandy land, wet and slippery lawn, and even gentle slope, without easily sinking or causing crushing damage to the lawn like wheeled vehicles, can cross small ditches and steps, and adapt to the uneven road surface commonly seen in gardens. The crawler chassis provides a more stable and smooth working platform, which is crucial for the precise operation of the supporting assembly 2.

[0046] The supporting assembly 2 is connected with the crawler traveling trolley 1 by a high-precision servo motor, which can accurately control the rotation angle of the supporting assembly 2.

[0047] The crawler traveling trolley 1 is equipped with visual sensors: RGB camera, depth camera, multispectral camera, which are used to identify objects, colors, shapes and health status. Laser radar: used for synchronous mapping, real-time positioning, obstacle avoidance and terrain perception. Environmental sensors: soil moisture, temperature, humidity, illuminance sensors. Ultrasonic / millimeter wave radar: used for close-range obstacle avoidance, especially to supplement the deficiency of vision in bad weather. High-precision servo motor is used to control the crawler chassis, and 5G / 4G is used to upload the data collected by the trolley to the cloud platform in real time. The cloud platform performs big data analysis, stores historical data, updates AI models, manages multiple trolleys for collaborative work, remote monitoring and task assignment.

[0048] The tracked vehicle 1 is also equipped with a water tank, an air compressor, a compressed air tank, a water and fertilizer tank, lithium batteries, etc. The air compressor can quickly fill the compressed air tank with high-pressure air, usually at 10-30 MPa or even higher, so that it can accumulate a large amount of energy inside. When the pressure reaches the preset value, the release valve is opened instantly through electric or mechanical control. The accumulated high-pressure gas is discharged from the fertilizer pipe 502 in milliseconds.

[0049] In an alternative embodiment, the soil breaking assembly 3 comprises a core barrel 301, a protective shell 302, a top pressing assembly 303, and a force receiving column 304. The protective shell 302 and the top pressing assembly 303 are arranged in the same number and are distributed around the outside of the core barrel 301. One end of the protective shell 302 is hinged to the core barrel 301, and the plurality of protective shells 302 can form a hollow column and wrap the core barrel 301. The top pressing assembly 303 is installed on the core barrel 301 and corresponds to the protective shell 302. The top pressing assembly 303 is used to open the protective shell 302 relative to the core barrel 301. The force receiving column 304 is fixed to the end of the core barrel 301 outside the protective shell 302. The output end of the hydraulic assembly 4 is fixed to the end of the force receiving column 304 away from the core barrel 301.

[0050] In this embodiment, the core barrel 301 is designed with a reinforced steel pipe to support all the protective shells 302. The force receiving column 304 is used to receive the pressure from the hydraulic assembly 4. The hinge form of the protective shell 302 and the core barrel 301 is a free hinge. After all the protective shells 302 are folded and inserted into the soil, it is difficult to separate naturally, so the free hinge form can meet the requirements.

[0051] In an alternative embodiment, the top pressing assembly 303 comprises a hydraulic cylinder 3031, a rack plate 3032, a guide rail 3033, and a cam 3034. The hydraulic cylinder 3031 and the guide rail 3033 are fixed to the end of the core barrel 301. The rack plate 3032 is clamped on the guide rail 3033 and is in sliding connection with it. The cam 3034 is in rotational connection with the guide rail 3033. The rim of the cam 3034 is provided with a gear 3035. The rack plate 3032 is in meshing connection with the gear 3035. When the hydraulic cylinder 3031 extends, it drives the cam 3034 to rotate through the rack plate 3032 and lifts the protective shell 302 using the cam 3034.

[0052] In this embodiment, the cam 3034 is used to gradually press against the protective shell 302. The hydraulic cylinder 3031 is not directly used to apply pressure to the protective shell 302. During the rotation of the cam 3034, the distance of the pressure applied to the protective shell 302 can be gradually increased. This process can output a larger pressure and can amplify the pressure of the hydraulic cylinder 3031 itself. Therefore, it is easier to separate the protective shell 302 by installing the cam 3034 inside the narrow protective shell 302, thereby prying the soil.

[0053] In an alternative embodiment, one end of the protective shell 302 is tapered, and the ends of the plurality of protective shells 302 can be combined into a tapered shape after being folded. The inner wall of the protective shell 302 is provided with a lubricating block 305 corresponding to the cam 3034, and is also provided with a reinforcing rib 306.

[0054] In this embodiment, the pointed end structure of the protective shell 302 can reduce the resistance when inserted into the soil, the reinforcing rib 306 can enhance the structural strength of the protective shell 302, and the lubricating block 305 can realize regular or automatic oiling, reduce the friction between the cam 3034 and the protective shell 302, and make the pressure applied by the cam 3034 more smoothly.

[0055] In an alternative embodiment, the irrigation pipe 501 is installed in the core barrel 301, the fertilizer pipe 502 is fixed outside the core barrel 301 and surrounds the irrigation pipe 501, the end of the irrigation pipe 501 away from the core barrel 301 is in the tapered structure of the protective shell 302, the end of the irrigation pipe 501 is provided with a transverse hole 503, and the side of the fertilizer pipe 502 away from the irrigation pipe 501 is provided with a plurality of air holes 504, and the air holes 504 of the fertilizer pipe 502 face the gap between the two adjacent protective shells 302.

[0056] In this embodiment, the outer end of the irrigation pipe 501 is connected with the carriage of the track traveling car 1 by a water pipe, and is connected with a water tank. A water pump is also installed in the water tank for irrigation of plant roots. The transverse hole 503 can realize the diffusion of water flow in the root system of large trees, and increase the water absorption rate of large area roots.

[0057] The fertilizer pipe 502 is also used as an air cannon pipe, so it needs to correspond to the gap of the protective shell 302. When the protective shell 302 opens the gap, the compressed gas that bursts instantaneously can pass through the gap and act on the soil, loosening the hardened root soil. This process can also reduce the pressure on the protective shell 302 when it is opened.

[0058] In an alternative embodiment, the water and fertilizer integrated assembly 5 further comprises a lead-through ring 505 and a high-pressure gas circuit 506. The lead-through ring 505 is connected and leads through a plurality of fertilizer pipes 502, and the high-pressure gas circuit 506 is connected with the lead-through ring 505 through an electromagnetic valve 507.

[0059] The water and fertilizer integrated assembly 5 further comprises a pump 508 and a water and fertilizer pipeline 509. The pump 508 communicates with a plurality of fertilizer pipes 502, and the water and fertilizer pipeline 509 is connected with the pump 508. The pump 508 is used to pump the liquid fertilizer in the water and fertilizer pipeline 509 into the fertilizer pipe 502.

[0060] In this embodiment, the high-pressure gas path 506 is connected to a compressed gas tank. The gas in the compressed gas tank can be released instantaneously. When the pressure reaches a preset value, the solenoid valve 507 is opened instantaneously by the electric control. The accumulated high-pressure gas is discharged from the fertilization pipe 502 in milliseconds. The water and fertilizer pipe 509 is connected to a water and fertilizer tank or a stock solution tank.

[0061] In an optional embodiment, the output end of the hydraulic cylinder 3031 is fixedly installed with a vibrator 3036, and the vibrator 3036 is connected to one end of the rack plate 3032.

[0062] In this embodiment, the vibrator 3036 is arranged to vibrate the rack plate 3032. When the soil is seriously hardened, the protective shell 302 is not easily opened. The vibrator 3036 can vibrate the opening of the protective shell 302 at a high frequency, so that the protective shell 302 is more easily opened, and the damage to the mechanical equipment is reduced.

[0063] In an optional embodiment, the soil breaking assembly 3 further comprises a sealing sleeve 307, one end of the sealing sleeve 307 is fixed on the stress column 304, and the other end of the sealing sleeve 307 is fixedly sleeved on the end of the protective shell 302.

[0064] In this embodiment, the sealing sleeve 307 is used to prevent the soil from entering the inside of the device when it is inserted into the soil in the early stage, causing some pipelines to be blocked.

[0065] In an optional embodiment, the support assembly 2 comprises a square box 201, and the stress column 304 and the plurality of protective shells 302 are arranged in the square box 201 and are in sliding connection with the square box 201.

[0066] In this embodiment, the square box 201 is provided with a track, and the outer portion of the stress column 304 is provided with a sliding block. The sliding block and the track are in sliding cooperation.

[0067] A water and fertilizer integrated irrigation method for greening and maintaining a garden, comprising the following steps:

[0068] S1: controlling the crawler traveling vehicle 1 to travel to the vicinity of a large tree needing irrigation and fertilization, and finding the root part of the large tree;

[0069] S2: controlling the hydraulic assembly 4 to generate force and inserting the whole formed by the stress column 304 and the folded protective shell 302 into the soil until the protective shell 302 is inserted to the root part position of the large tree;

[0070] S3: all the hydraulic cylinders 3031 are stretched to make the cam 3034 rotate and gradually lift the protective shell 302, and the protective shell 302 is separated to form a gap in the soil;

[0071] S4: after the protective shell 302 is opened to a certain gap, the solenoid valve 507 sends the compressed gas in the high-pressure gas path 506 into a part of the fertilization pipe 502 to form a gas gun and expand the soil;

[0072] S5: After loosening the soil, the pump 508 supplies liquid fertilizer into the fertilizing pipe 502, and the compressed gas cannon is used again to spray the liquid fertilizer in the fertilizing pipe 502, and the compressed gas and the liquid fertilizer are alternately supplied into the fertilizing pipe 502, while the irrigation pipe 501 starts to supply water to the roots of the plants.

[0073] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0074] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the scope of protection required by the present application.

[0075] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A water and fertilizer integrated irrigation device for greening and landscaping maintenance, comprising a tracked trolley (1), characterized in that: Also include the support assembly (2) installed on the crawler traveling trolley (1), support assembly (2) can be adjusted relative to the crawler traveling trolley (1) angle, support assembly (2) is installed in the soil breaking assembly (3), one end of support assembly (2) is provided with hydraulic assembly (4), hydraulic assembly (4) is used for pressing soil breaking assembly (3), make it from support assembly (2) and insert into the soil plant root position; The water and fertilizer integrated assembly (5) is installed in the soil breaking assembly (3), the water and fertilizer integrated assembly (5) includes irrigation pipe (501) and a plurality of fertilizer pipe (502), irrigation pipe (501) is used for irrigating plant root system after soil breaking assembly (3) breaks soil, fertilizer pipe (502) can be intermittently filled with liquid fertilizer and intermittently filled with high pressure expansion gas, used for loosening soil and fertilizing by using instant high pressure gas after soil breaking assembly (3) breaks soil; The soil breaking assembly (3) includes core barrel (301), protective shell (302), pressing assembly (303) and stress column (304), the protective shell (302) and the pressing assembly (303) are provided with the same number of multiple, and are distributed around the outside of the core barrel (301), one end of the protective shell (302) is hinged to the core barrel (301), the plurality of protective shells (302) can form a hollow column and wrap the core barrel (301), the pressing assembly (303) is installed on the core barrel (301) and corresponds to the protective shell (302), the pressing assembly (303) is used for opening the protective shell (302) relative to the core barrel (301), the stress column (304) is fixed at one end of the core barrel (301) outside the protective shell (302), and the output end of the hydraulic assembly (4) is fixed to the end of the stress column (304) away from the core barrel (301).

2. The water and fertilizer integrated irrigation device for green maintenance gardens according to claim 1, characterized in that: The pressing assembly (303) includes hydraulic cylinder (3031), rack plate (3032), guide rail (3033) and cam (3034), the hydraulic cylinder (3031) and the guide rail (3033) are fixed with the end of the core barrel (301), the rack plate (3032) is clamped on the guide rail (3033) and is in sliding connection with the guide rail (3033), the cam (3034) is in rotary connection with the guide rail (3033), the rim of the cam (3034) is provided with a gear (3035), the rack plate (3032) is in meshing with the gear (3035), and the hydraulic cylinder (3031) is stretched to drive the cam (3034) to rotate through the rack plate (3032) and lift the protective shell (302) by the cam (3034).

3. The water and fertilizer integrated irrigation device for green conservation garden of claim 2, characterized in that: One end of the protective shell (302) is tapered, and the end of the plurality of protective shells (302) can be combined into a cone shape after being folded, the inner wall of the protective shell (302) is provided with a lubricating block (305) corresponding to the cam (3034), and the inner wall of the protective shell (302) is also provided with a reinforcing rib (306).

4. The water and fertilizer integrated irrigation device for green conservation garden of claim 3, characterized in that: The irrigation pipe (501) is installed in the core barrel (301), the fertilization pipe (502) is fixed outside the core barrel (301) and is distributed around the irrigation pipe (501), the end of the irrigation pipe (501) away from the core barrel (301) is in the conical structure of the protective shell (302), the end of the irrigation pipe (501) is provided with a transverse hole (503), one side of the fertilization pipe (502) away from the irrigation pipe (501) is provided with a plurality of air holes (504), and the air holes (504) of the fertilization pipe (502) face the gap between the two adjacent protective shells (302).

5. The water and fertilizer integrated irrigation device for green conservation garden of claim 4, characterized in that: The water and fertilizer integrated assembly (5) further comprises a lead-through ring (505) and a high-pressure gas circuit (506), the lead-through ring (505) is connected and leads through a plurality of fertilization pipes (502), and the high-pressure gas circuit (506) is connected with the lead-through ring (505) through an electromagnetic valve (507); the water and fertilizer integrated assembly (5) further comprises a pump (508) and a water and fertilizer pipeline (509), the pump (508) communicates with the plurality of fertilization pipes (502), the water and fertilizer pipeline (509) is connected with the pump (508), and the pump (508) is used for pumping liquid fertilizer in the water and fertilizer pipeline (509) into the fertilization pipe (502).

6. The water and fertilizer integrated irrigation device for green conservation garden of claim 5, wherein: The output end of the hydraulic cylinder (3031) is fixedly installed with a vibrator (3036), and the vibrator (3036) is connected with one end of the rack plate (3032).

7. The water and fertilizer integrated irrigation device for green conservation garden according to claim 6, characterized in that: The soil breaking assembly (3) further comprises a sealing sleeve (307), one end of the sealing sleeve (307) is fixed on the stress column (304), and the other end of the sealing sleeve (307) is sleeved on the end of the protective shell (302).

8. The water and fertilizer integrated irrigation device for green conservation garden of claim 7, characterized in that: The support assembly (2) comprises a square frame (201), and the stress column (304) and the plurality of protective shells (302) are arranged in the square frame (201) and are in sliding connection with the square frame (201).

9. A water and fertilizer integrated irrigation method for landscaping and maintaining gardens, which utilizes the water and fertilizer integrated irrigation device for landscaping and maintaining gardens according to claim 8, characterized by: The method comprises the following steps: S1: controlling the crawler traveling trolley (1) to drive to the vicinity of a large tree needing irrigation and fertilization, and finding the root of the large tree; S2: controlling the hydraulic assembly (4) to generate force and inserting the whole formed by the stress column (304) and the protective shell (302) after being folded into the soil until the protective shell (302) is inserted to the position of the root of the large tree; S3: all the hydraulic cylinders (3031) are stretched, the cam (3034) is rotated and gradually lifts the protective shell (302), and the protective shell (302) is separated to form a gap in the soil; S4: after the protective shell (302) is opened to a certain gap, the electromagnetic valve (507) sends the compressed gas in the high-pressure gas circuit (506) into a part of the fertilization pipe (502) to form a gas gun and loosen the soil; S5: after the soil is loosened, the pump (508) supplies liquid fertilizer into the fertilization pipe (502), and the liquid fertilizer in the fertilization pipe (502) is sprayed out again by sending the compressed gas gun, the compressed gas and the liquid fertilizer are alternately sent into the fertilization pipe (502), and at the same time, the irrigation pipe (501) starts to send water to the root of the plant.

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