Self-propelled integrated water and fertilizer drip irrigation device

Abstract

The self-propelled water-fertilizer integrated drip irrigation device relates to the technical field of drip irrigation in greenhouses, and is used to realize drip irrigation of water and fertilizer and directly deliver water and fertilizer to the roots of crops. It includes a guide rail, a trolley, a drip irrigator and a delivery assembly. The guide rail is laid on the greenhouse floor along the crop planting direction, the trolley is located on the guide rail and moves along the guide rail, and the drip irrigator is sequentially arranged along the length direction of the guide rail and inserted into the soil; the delivery assembly includes a liquid storage tank, a delivery pipe, a liquid inlet pipe, a liquid discharge pipe and a valve. The liquid storage tank is fixed on the trolley, one end of the liquid inlet pipe extends into the liquid storage tank, the other end of the liquid inlet pipe is connected to one end of the delivery pipe, and the other end of the delivery pipe is connected to a water pump for extracting water and fertilizer; one end of the liquid discharge pipe is connected to the inner cavity of the liquid storage tank, and the valve is fixed to the other end of the liquid discharge pipe. The lower part of the valve has a hollow water guide rod, and the upper end of the water guide rod extends into the valve for opening the valve. The present invention can add water and fertilizer to the roots of crops.

Description

Technical Field

[0001] The invention relates to the technical field of drip irrigation in a greenhouse, in particular to a self-propelled water-fertilizer integrated drip irrigation device. Background Art

[0002] There are usually two ways to apply water and fertilizer to crops in a greenhouse. One is to drip or irrigate through laid pipes. This method will result in a certain amount of waste because the water and fertilizer cannot reach the roots of the crops directly. The other method is to sprinkle the crops with a sprinkler device that is suspended on the top of the greenhouse and moves along a track. This method requires a track to be set up on the top of the greenhouse, which has a high requirement on the structural strength of the greenhouse, and the water and fertilizer cannot reach the roots of the crops directly. Summary of the invention

[0003] The object of the present invention is to provide a self-propelled water-fertilizer integrated drip irrigation device, which is used to realize drip irrigation of water and fertilizer and directly transport the water and fertilizer to the roots of crops.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a self-propelled water-fertilizer integrated drip irrigation device, comprising a guide rail, a traveling trolley, a dripper and a conveying assembly, wherein the guide rail is laid on the greenhouse floor along the crop planting row, the traveling trolley is located on the guide rail and moves along the guide rail, the dripper is sequentially arranged along the length direction of the guide rail and inserted into the soil, the dripper comprises a water storage member and a hollow insertion rod which are arranged and connected up and down, the top of the water storage member is provided with a driving member, the longitudinal section of the driving member is a "]"-shaped structure with an opening facing upward, and the inner cavity bottom of the driving member comprises two symmetrically arranged driving inclined surfaces, and a stabilizing plane arranged between the upper ends of the two driving inclined surfaces, the top of the water storage member is provided with a liquid inlet, and the liquid in the inner cavity of the driving member flows into the liquid inlet through the end of the driving member;

[0005] The conveying assembly includes a liquid storage tank, a conveying pipe, a liquid inlet pipe, a liquid discharge pipe and a valve. The liquid storage tank is fixed on the walking trolley, one end of the liquid inlet pipe extends into the liquid storage tank, the other end of the liquid inlet pipe is connected to one end of the conveying pipe, and the other end of the conveying pipe is connected to a water pump for extracting water fertilizer; one end of the liquid discharge pipe is communicated with the inner cavity of the liquid storage tank, the other end of the liquid discharge pipe is vertically downward, the valve is fixed to the other end of the liquid discharge pipe, the lower part of the valve has a hollow water guide rod, the upper end of the water guide rod is open and the lower end is sealed, the side wall of the lower end of the water guide rod has a drainage hole, and the upper end of the water guide rod The end extends into the valve and is slidably connected to the valve. A positioning spring is provided between the water guide rod and the valve. Under the action of the positioning spring, the length of the water guide rod extending out of the valve is the maximum; a sealing structure is provided in the valve above the water guide rod. When the bottom of the water guide rod moves up along the driving inclined surface at one end of the driving member, the top of the water guide rod squeezes the sealing structure so that the sealing structure opens. At this time, the drain pipe is connected to the water guide rod through the valve; when the bottom of the water guide rod contacts the stable plane, the sealing structure is opened to the maximum extent. When the bottom of the water guide rod moves down along the driving inclined surface at the other end of the driving member, the sealing structure gradually closes.

[0006] Furthermore, the water storage member is a "V"-shaped structure, and the water storage member and the insertion rod form a "Y" shape.

[0007] Furthermore, both ends of the top of the water storage member are respectively provided with a liquid inlet, and the end of the driving member is located above the corresponding liquid inlet.

[0008] Furthermore, a mesh water blocker is provided in the inner cavity of the insertion rod.

[0009] Furthermore, the liquid inlet pipe is arranged vertically, the upper end of the liquid inlet pipe passes through the lower wall of the liquid storage tank and extends into the liquid storage tank, and the lower end of the liquid inlet pipe is located below the liquid storage tank and connected to the delivery pipe.

[0010] Furthermore, the sealing structure includes a valve core, a sealing spring, a ball valve and a valve seat, the valve core and the valve seat are arranged up and down and fixedly connected, the bottom of the valve core has a valve core groove, the top of the valve core has a valve core opening connecting the valve core groove and the drain pipe, the ball valve is located between the valve core and the valve seat, one end of the sealing spring is fixedly connected to the outer wall of the ball valve, the other end of the sealing spring is fixedly connected to the top of the valve core, the valve seat has a valve seat through hole, the sealing spring acts to make the ball valve contact with the inner wall of the valve seat through hole, and at this time the sealing structure is completely closed; after the top of the water guide rod squeezes the ball valve to separate the ball valve from the valve seat through hole, the sealing structure opens.

[0011] Furthermore, there is a transmission part between the ball valve and the water guide rod, and the transmission part includes a push rod and a slip ring. One end of the push rod is fixedly connected to the ball valve, and the other end of the push rod is fixedly connected to the slip ring. The slip ring has a slip ring through hole. When the water guide rod moves upward, it contacts the slip ring and pushes the ball valve upward.

[0012] Furthermore, a guide sleeve is provided in the lower part of the valve, the slip ring is located on the inner side of the guide sleeve and is slidably connected to the guide sleeve, the inner wall of the guide sleeve has a spring cavity, a positioning spring seat is fixed to the outer wall of the upper end of the water guide rod, the positioning spring seat is located in the spring cavity and is slidably connected to the inner wall of the spring cavity, one end of the positioning spring is fixedly connected to the positioning spring seat, and the other end of the positioning spring is fixed in contact with the inner wall of the spring cavity.

[0013] Furthermore, the upper end surface of the valve seat has a connecting ring, and the lower end surface of the valve core has an annular groove threadedly connected to the connecting ring.

[0014] Furthermore, the valve comprises an upper valve body and a lower valve body which are threadedly connected, the valve core and the valve seat are located in the upper valve body, and the guide sleeve is located in the lower valve body.

[0015] The beneficial effects of the present invention are as follows: the present invention enables the walking trolley to move along the crop planting row on the greenhouse ground through the arrangement of the guide rail, and the conveying pipe for conveying water and fertilizer is dragged to move during the movement of the walking trolley, and the arrangement of the conveying pipe facilitates the replenishment of water and fertilizer into the liquid storage tank; when the walking trolley moves to the drip irrigator position, the drip irrigator contacts the valve to start the valve opening, so that the water and fertilizer in the liquid storage tank flow into the drip irrigator through the valve; the drip irrigator is inserted into the soil, and on the one hand, the water and fertilizer in the drip irrigator can directly reach the root of the crop, and on the other hand, the water and fertilizer in the drip irrigator slowly flow into the soil through the drip irrigator, which is beneficial to the absorption of the crop; after the valve is separated from the drip irrigator, the valve can be closed automatically. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the present invention;

[0017] Figure 2 It is a front view of the present invention;

[0018] Figure 3 A top view of the present invention;

[0019] Figure 4 This is a left view of the present invention in use;

[0020] Figure 5 A three-dimensional diagram of the traveling trolley and the conveying assembly of the present invention;

[0021] Figure 6 It is a front view of the traveling trolley and the conveying assembly of the present invention;

[0022] Figure 7 It is a right side view of the traveling trolley and the irrigation assembly of the present invention;

[0023] Figure 8 for Figure 7 A half-section view of

[0024] Fig. 9 for Figure 8 A local enlarged view of point A in FIG.

[0025] Fig.10 This is a schematic diagram of the water guide rod moving upward to open the valve;

[0026] Fig.11 It is a schematic diagram of the water guide rod of the conveying assembly moving up along the driving inclined surface of the driving member when the conveying assembly moves with the traveling trolley;

[0027] Fig.12 It is a schematic diagram of the water guide rod of the conveying assembly moving to a stable plane when the conveying assembly moves with the traveling trolley;

[0028] Fig.13 A three-dimensional diagram of the drip irrigation device of the present invention;

[0029] Fig.14 It is a top view of the drip irrigation device;

[0030] Fig.15 is a cross-sectional view of a drip irrigation device;

[0031] In the figure: 1 guide rail, 2 drip irrigation device, 21 water storage member, 22 plug rod, 23 driving member, 231 driving inclined plane, 232 stable plane, 24 liquid inlet, 25 water blocker, 26 small hole, 3 vehicle body, 31 wheel frame, 32 running wheel, 33 wheel axle, 4 liquid storage tank, 41 air hole, 42 liquid inlet pipe, 43 liquid discharge pipe, 44 liquid level sensor, 5 delivery pipe, 6 valve, 61 upper valve body, 62 lower valve body, 63 mounting ring, 64 guide sleeve, 641 spring chamber, 65 valve core, 651 valve core groove, 652 sealing spring seat, 653 valve core mouth, 66 sealing spring, 67 ball valve, 671 groove, 68 valve seat, 681 connecting ring, 682 sealing surface, 683 valve seat through hole, 69 slip ring, 691 push rod, 692 slip ring through hole, 7 water guide rod, 71 drainage hole, 72 positioning spring seat, 73 positioning spring, 8 soil, 9 sealing gasket. DETAILED DESCRIPTION

[0032] like Figures 1 to 15 As shown, the present invention comprises a guide rail 1, a traveling trolley, a drip irrigation device 2 and a conveying assembly. The present invention is described in detail below in conjunction with the accompanying drawings.

[0033] like Figures 1 to 15As shown, the self-propelled water-fertilizer integrated drip irrigation device includes a guide rail 1, a traveling trolley, a drip irrigator 2 and a conveying assembly. The guide rail 1 provides guidance for the movement of the traveling trolley. The drip irrigator 2 is used to be inserted into the soil to transport water and fertilizer to the roots of crops. The conveying assembly is used to move with the traveling trolley to add water and fertilizer into the drip irrigator 2.

[0034] like Figures 1 to 3 As shown, there are two parallel guide rails 1, which are laid on the greenhouse floor along the crop planting row. The guide rails 1 are used to provide guidance for the movement of the trolley. The trolley is located on the guide rails 1 and moves along the guide rails 1. The trolley includes a body 3, a wheel frame 31 arranged at the bottom of the body 3, and a running wheel 32 rotatably mounted on the wheel frame 31, and the running wheel 32 straddles the guide rail 1. The two running wheels 32 on the front or rear side of the body 3 are coaxially arranged together through a wheel axle 33. The trolley is provided with a driving mechanism for driving the running wheel 32 to rotate, so as to realize the self-propelled movement of the entire device. The driving mechanism is a prior art and will not be described in detail.

[0035] like Figures 1 to 3 As shown, the drippers 2 are sequentially arranged along the length direction of the guide rail 1 and inserted into the soil. The drippers 2 have multiple Figures 13 to 15 As shown, the drip irrigation device 2 includes a water storage member 21 and an insertion rod 22 which are arranged in a vertical manner and are connected. A driving member 23 is provided on the top of the water storage member 21. The longitudinal section of the driving member 23 is a "]"-shaped structure with the opening facing upward, and the bottom of the inner cavity of the driving member 23 includes two symmetrically arranged driving inclined surfaces 231, and a stabilizing plane 232 arranged between the upper ends of the two driving inclined surfaces 231, that is, the high point of the driving inclined surfaces 231 is connected to the stabilizing plane 232. A liquid inlet 24 is provided on the top of the water storage member 21, and the liquid in the inner cavity of the driving member 23 flows into the liquid inlet 24 through the end of the driving member 23, and then flows into the water storage member 21. The insertion rod 22 is a hollow structure, and the inner cavity of the insertion rod 22 is connected with the inner cavity of the water storage member 21, and the liquid in the water storage member 21 can enter the insertion rod 22. As shown Fig.15 As shown, the bottom of the rod 22 has a small hole 26, and the liquid (such as water fertilizer) in the rod 22 slowly flows out through the small hole 26, thereby realizing the slow application of water fertilizer. Figure 4 As shown, the insertion rod 22 of the drip irrigation device 2 is inserted into the soil 8, and the water storage member 21 is located above the greenhouse ground. Fig.13 As shown, the water storage member 21 is a "V" shaped structure, and the water storage member 21 and the insertion rod 22 form a "Y" shape. The two ends of the top of the water storage member 21 each have a liquid inlet 24, and the end of the driving member 23 is located above the corresponding liquid inlet 24, so that the liquid in the driving member 23 flows into the liquid inlet 24 through the end of the driving member 23. In order to allow the water and fertilizer in the insertion rod 22 to flow slowly into the soil, as shown in FIG. Fig.15 As shown, the inner cavity of the insertion rod 22 is provided with a mesh water blocker 25 .

[0036] When in use, the drip irrigation device 2 is inserted into the soil along the length direction of the guide rail 1, and the bottom of the insertion rod 22 is extended to the vicinity of the root of the crop.

[0037] like Figure 5 , Figure 6 and Figure 7 As shown, the delivery assembly includes a liquid storage tank 4, a delivery pipe 5, a liquid inlet pipe 42, a liquid discharge pipe 43 and a valve 6. The liquid storage tank 4 is a square box and is fixed on the body 31 of the walking trolley 3. One end of the liquid inlet pipe 42 extends into the liquid storage tank 4, and the other end of the liquid inlet pipe 42 is connected to one end of the delivery pipe 5. Specifically: Figure 8 As shown, the liquid inlet pipe 42 is vertically arranged, and the upper end of the liquid inlet pipe 42 passes through the lower wall of the liquid storage tank 4 from bottom to top and then extends into the liquid storage tank 4, and the upper end of the liquid inlet pipe 42 is close to the top of the liquid storage tank 4, and the lower end of the liquid inlet pipe 42 (i.e., the other end of the liquid inlet pipe 42) is located below the liquid storage tank 4 and connected to the delivery pipe 5. The delivery pipe 5 is a rubber hose, one end of the delivery pipe 5 is connected to the liquid inlet pipe 42, and the other end of the delivery pipe 5 is used to connect to a water pump for extracting water and fertilizer. The wheel axle 33 contacts the delivery pipe 5 to support one end of the delivery pipe 5. One end of the delivery pipe 5 is located at one end of the crop planting row, and the walking trolley starts to move from the other end of the crop planting row. In order to facilitate the entry of water and fertilizer into the liquid storage tank 4 through the delivery pipe 5, as shown Figure 8 As shown, air holes 41 are provided on the side wall of the upper portion of the liquid storage tank 4 .

[0038] like Figure 8 As shown, one end of the drain pipe 43 is fixedly connected to the side wall of the liquid storage tank 4 and communicates with the inner cavity of the liquid storage tank 4. The other end of the drain pipe 43 is vertically downward. The valve 6 is fixed to the other end of the drain pipe 43. The lower part of the valve 6 has a hollow water guide rod 7. The upper end of the water guide rod 7 is open and the lower end is sealed. The bottom of the water guide rod 7 is hemispherical. The side wall at the lower end of the water guide rod 7 has a drain hole 71. The upper end of the water guide rod 7 extends into the valve 6 and is slidably connected to the valve 6. Fig. 9As shown, the valve 6 comprises an upper valve body 61 and a lower valve body 62 which are threadedly connected. The top of the lower valve body 62 is provided with a mounting ring 63 which extends into the upper valve body 61 and is threadedly connected with the upper valve body 61. The valve 6 has a sealing structure located above the water guide rod 7. The sealing structure comprises a valve core 65, a sealing spring 66, a ball valve 67 and a valve seat 68. The valve core 65 and the valve seat 68 are both located in the upper valve body 61. The upper end surface of the valve seat 68 has a connecting ring 681, and the lower end surface of the valve core 65 has a ring groove which is threadedly connected with the connecting ring 681, so that the valve core 65 and the valve seat 68 are arranged up and down and fixedly connected. The bottom of the valve core 65 has a valve core groove 651, and the top of the valve core 65 has a valve core port 653 which connects the valve core groove 651 with the drain pipe 43. The ball valve 67 is located between the valve core 65 and the valve seat 68. One end of the sealing spring 66 extends into the groove 671 on the outer wall of the ball valve 67 and is fixedly connected to the ball valve 67. A sealing spring seat 652 is provided in the valve core opening 653. The other end of the sealing spring 66 extends into the valve core opening 653 and is fixedly connected to the sealing spring seat 652. The valve seat 68 is provided with a valve seat through hole 683. The sealing spring 66 acts to make the ball valve 67 contact with the inner wall of the valve seat through hole 683. At this time, the sealing structure is completely closed. After the top of the water guide rod 7 squeezes the ball valve 67 so that the ball valve 67 is separated from the valve seat 68 through hole, the sealing structure is opened. The inner wall of the valve seat through hole 683 is a spherical contact surface 682, which is used to closely contact with the ball valve 67 to achieve sealing.

[0039] In order to facilitate the water guide rod 7 to squeeze the ball valve 67, as Fig. 9 As shown, there is a transmission member between the ball valve 67 and the water guide rod 7, and the transmission member includes a push rod 691 and a slip ring 69. One end of the push rod 691 is fixedly connected to the ball valve 67, and the other end of the push rod 691 is fixedly connected to the slip ring 69. The slip ring 69 has a slip ring through hole 692. When the water guide rod 7 moves upward, it contacts the slip ring 69 and pushes the ball valve 67 upward. There is a positioning spring 73 between the water guide rod 7 and the valve 6. Under the action of the positioning spring 73, the length of the water guide rod 7 extending out of the valve 6 is the maximum, and at this time, there is a certain gap between the top of the water guide rod 7 and the slip ring 69. The existence of this gap, under the action of the driving member 23, makes the water guide rod 7 gradually approach the ball valve 67 in the initial stage of upward movement without contacting the ball valve 67. When the bottom of the water guide rod 7 moves to the middle and upper section of the driving inclined surface 231, the top of the water guide rod 7 just contacts the ball valve 67.

[0040] like Fig. 9 As shown, the lower valve body 62 has a guide sleeve 64 inside, the slip ring 69 is located inside the guide sleeve 64 and is slidably connected to the guide sleeve 64, the inner wall of the guide sleeve 64 has a spring cavity 641, and the outer wall of the upper end of the water guide rod 7 is fixed with a positioning spring seat 72, the positioning spring seat 72 is located in the spring cavity 641 and is slidably connected to the inner wall of the spring cavity 641. One end of the positioning spring 73 is fixedly connected to the positioning spring seat 72, and the other end of the positioning spring 73 is fixedly contacted with the inner wall of the spring cavity 641.

[0041] like Fig.11 As shown, when the bottom of the water guide rod 7 moves upward along the driving inclined surface 231 on one side of the driving member 23, as shown in FIG. Fig.10 As shown, the sliding ring 69 of the sealing structure is squeezed on the top of the water guide rod 7 so that the transmission member drives the ball valve 67 to move upward. At this time, the elastic force of the sealing spring 66 is overcome to separate the ball valve 67 from the valve seat through hole 683. At this time, the sealing structure is opened, and the drain pipe 43 is connected with the water guide rod 7 through the valve 6. The water and fertilizer in the liquid storage tank 4 flows into the valve core port 653 in the upper valve body 61 through the drain pipe 43, and then enters the valve core groove 651, and then passes through the valve seat through hole 683 and flows into the guide sleeve 64 in the lower valve body 62, and then flows into the water guide rod 7, and finally flows into the driving member 23 through the drain hole 71 at the lower end of the water guide rod 7, and then flows into the liquid inlet 24 at both ends of the driving member 23, and then flows into the drip irrigation device 2.

[0042] like Fig.12 As shown, when the bottom of the water guide rod 7 contacts the stable plane 232, the sealing structure is opened to the maximum extent; at this time, the drainage hole 71 faces the front and rear side walls of the driving member 23, and the water and fertilizer can only flow to the two ends of the driving member 23 under the blocking of the front and rear side walls of the driving member 23. As the walking trolley moves, the water guide rod 7 moves along the stable plane 232 to the driving inclined surface 231 at the other end of the driving member 23, and the bottom of the water guide rod 7 moves down along the driving inclined surface 231 at the other end of the driving member 23, and the sealing structure gradually closes.

[0043] To monitor the level of water and fertilizer in the liquid storage tank 4, Figure 8 As shown, two liquid level sensors 44 are arranged on the inner wall of the lower part of the liquid storage tank 4, the lower liquid level sensor 44 is located above the connection point between the discharge pipe 43 and the liquid storage tank 4, and the upper liquid level sensor 44 is located 2 cm below the top of the liquid inlet pipe 42. When the lower liquid level sensor 44 cannot detect the liquid level, it indicates that the amount of water and fertilizer in the liquid storage tank 4 is insufficient. At this time, the water pump is started to add water and fertilizer to the liquid storage tank 4 through the delivery pipe 5 and the liquid inlet pipe 42 until the upper liquid level sensor 44 detects the liquid level, which indicates that the water and fertilizer in the liquid storage tank 4 have been added.

[0044] In order to ensure the sealing between the ball valve 67 and the valve seat 68, between the drain pipe 43 and the upper valve body 61, and between the water guide rod 7 and the guide sleeve 64, sealing gaskets 9 are provided on the inner wall of the valve seat through hole 683, the connection between the drain pipe 43 and the upper valve body 61, and the connection between the water guide rod 7 and the guide sleeve 64.

[0045] The present invention enables the walking trolley to move along the crop planting row on the greenhouse ground through the arrangement of the guide rails. During the movement of the walking trolley, the conveying pipe for conveying water and fertilizer is dragged to move. The arrangement of the conveying pipe facilitates the replenishment of water and fertilizer into the liquid storage tank. When the walking trolley moves to the drip irrigator position, the drip irrigator contacts with the valve to start the valve opening, so that the water and fertilizer in the liquid storage tank flow into the drip irrigator through the valve. The drip irrigator is inserted into the soil. On the one hand, the water and fertilizer in the drip irrigator can directly reach the root of the crop, and on the other hand, the water and fertilizer in the drip irrigator slowly flow into the soil through the drip irrigator, which is beneficial to the absorption of the crop. After the valve is separated from the drip irrigator, the valve can be closed automatically.

Claims

1. Self-propelled water and fertilizer integrated drip irrigation device, characterized in that: It comprises a guide rail, a trolley, a dripper and a conveying assembly. The guide rail is laid on the greenhouse floor along the crop planting row. The trolley is located on the guide rail and moves along the guide rail. The dripper is sequentially arranged along the length direction of the guide rail and inserted into the soil. The dripper comprises a water storage member and a hollow insertion rod which are arranged and connected up and down. The top of the water storage member has a driving member. The longitudinal section of the driving member is a "]"-shaped structure with an opening facing upward. The bottom of the inner cavity of the driving member comprises two symmetrically arranged driving inclined surfaces and a stabilizing plane arranged between the upper ends of the two driving inclined surfaces. The top of the water storage member has a liquid inlet. The liquid in the inner cavity of the driving member flows into the liquid inlet through the end of the driving member. The conveying assembly includes a liquid storage tank, a conveying pipe, a liquid inlet pipe, a liquid discharge pipe and a valve. The liquid storage tank is fixed on the walking trolley, one end of the liquid inlet pipe extends into the liquid storage tank, the other end of the liquid inlet pipe is connected to one end of the conveying pipe, and the other end of the conveying pipe is connected to a water pump for extracting water fertilizer; one end of the liquid discharge pipe is communicated with the inner cavity of the liquid storage tank, the other end of the liquid discharge pipe is vertically downward, the valve is fixed to the other end of the liquid discharge pipe, the lower part of the valve has a hollow water guide rod, the upper end of the water guide rod is open and the lower end is sealed, the side wall of the lower end of the water guide rod has a drainage hole, and the upper end of the water guide rod The end extends into the valve and is slidably connected to the valve. A positioning spring is provided between the water guide rod and the valve. Under the action of the positioning spring, the length of the water guide rod extending out of the valve is the maximum; a sealing structure is provided in the valve above the water guide rod. When the bottom of the water guide rod moves up along the driving inclined surface at one end of the driving member, the top of the water guide rod squeezes the sealing structure so that the sealing structure opens. At this time, the drain pipe is connected to the water guide rod through the valve; when the bottom of the water guide rod contacts the stable plane, the sealing structure is opened to the maximum extent. When the bottom of the water guide rod moves down along the driving inclined surface at the other end of the driving member, the sealing structure gradually closes.

2. The self-propelled water-fertilizer integrated drip irrigation device according to claim 1 is characterized in that: The water storage member is a "V"-shaped structure, and the water storage member and the insertion rod form a "Y" shape.

3. The self-propelled water-fertilizer integrated drip irrigation device according to claim 2 is characterized in that: The two ends of the top of the water storage member are respectively provided with a liquid inlet, and the end of the driving member is located above the corresponding liquid inlet.

4. The self-propelled water-fertilizer integrated drip irrigation device according to claim 1, characterized in that: A mesh-shaped water blocker is arranged in the inner cavity of the insertion rod.

5. The self-propelled water-fertilizer integrated drip irrigation device according to claim 1, characterized in that: The liquid inlet pipe is arranged vertically, and the upper end of the liquid inlet pipe passes through the lower wall of the liquid storage tank and then extends into the liquid storage tank. The lower end of the liquid inlet pipe is located below the liquid storage tank and is connected to the delivery pipe.

6. The self-propelled water-fertilizer integrated drip irrigation device according to claim 1, characterized in that: The sealing structure includes a valve core, a sealing spring, a ball valve and a valve seat. The valve core and the valve seat are arranged up and down and fixedly connected. The bottom of the valve core is provided with a valve core groove, and the top of the valve core is provided with a valve core opening connecting the valve core groove and the drain pipe. The ball valve is located between the valve core and the valve seat. One end of the sealing spring is fixedly connected to the outer wall of the ball valve, and the other end of the sealing spring is fixedly connected to the top of the valve core. The valve seat is provided with a valve seat through hole. The sealing spring acts to make the ball valve contact with the inner wall of the valve seat through hole, and the sealing structure is completely closed at this time; after the top of the water guide rod squeezes the ball valve to separate the ball valve from the valve seat through hole, the sealing structure is opened.

7. The self-propelled water-fertilizer integrated drip irrigation device according to claim 6, characterized in that: There is a transmission part between the ball valve and the water guide rod, and the transmission part includes a push rod and a slip ring. One end of the push rod is fixedly connected to the ball valve, and the other end of the push rod is fixedly connected to the slip ring. The slip ring has a slip ring through hole. When the water guide rod moves upward, it contacts the slip ring and pushes the ball valve upward.

8. The self-propelled water-fertilizer integrated drip irrigation device according to claim 7, characterized in that: A guide sleeve is provided in the lower part of the valve, the slip ring is located on the inner side of the guide sleeve and is slidably connected to the guide sleeve, the inner wall of the guide sleeve has a spring cavity, a positioning spring seat is fixed to the outer wall of the upper end of the water guide rod, the positioning spring seat is located in the spring cavity and is slidably connected to the inner wall of the spring cavity, one end of the positioning spring is fixedly connected to the positioning spring seat, and the other end of the positioning spring is fixedly contacted with the inner wall of the spring cavity.

9. The self-propelled water-fertilizer integrated drip irrigation device according to claim 6, characterized in that: The upper end surface of the valve seat is provided with a connecting ring, and the lower end surface of the valve core is provided with an annular groove threadedly connected to the connecting ring.

10. The self-propelled water-fertilizer integrated drip irrigation device according to claim 8, characterized in that: The valve comprises an upper valve body and a lower valve body which are threadedly connected, the valve core and the valve seat are located in the upper valve body, and the guide sleeve is located in the lower valve body.

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