Automatic mud-discharging water-saving irrigation device for high mountain vegetable planting

Abstract

The invention discloses an automatic sludge discharge water-saving irrigation device for high mountain vegetable planting, which comprises a rainwater collection blind ditch and a water pool arranged on a high mountain slope, the rainwater collection blind ditch is communicated with the water pool, the water pool is a self-sludge discharge water pool, and the self-sludge discharge water pool comprises an upper pool body, a lower pool body and an automatic sludge discharge assembly, a water outlet connector is arranged on the bottom surface of one end of each of the upper tank body and the lower tank body, and the lower end of each water outlet connector is connected with a sludge discharge pipe extending out of a hillside; an overflow port is formed in the upper part of the front surface of the other end of the upper tank body; the lower end of the front wall of the upper tank body is connected with the upper end of the rear wall of the lower tank body, and an opening in the upper end of the lower tank body is located under the overflow port; and the automatic sludge discharge assembly is connected to the upper tank body and / or the lower tank body. The device is simple in structure and low in cost, automatic sludge discharge can be achieved through excessive rainwater after water storage is finished, impurities in water flowing into the drainage pipe are lower, the pipeline is not prone to being blocked, the structure is firm, fixation and reliability are achieved, and the construction amount is small.

Description

Technical Field

[0001] The invention relates to the technical field of slope irrigation, and in particular to an automatic mud-draining and water-saving irrigation device for alpine vegetable planting. Background Art

[0002] During rainfall, due to gravity, rainwater cannot be fully absorbed by the soil on sloping fields, so it is easy to cause water shortage and drought in crops in seasons with insufficient rainfall. The existing drip irrigation technology mainly uses water pumps to pump water from rivers, wells and other sources into water tanks for drip irrigation. This method requires more electricity on sloping fields and also causes a certain amount of waste of water generated by rainfall.

[0003] After searching, it was found that the Chinese patent with application number CN201820624682.7 discloses a sloping rainwater collection and on-site gravity irrigation device, including a water collection ditch, a rainwater filter barrel, a rainwater sedimentation tank, a water storage tank and a water-saving irrigation pipe arranged in sequence along the slope of the slope. An inspection well is provided in the rainwater sedimentation tank, and a motor is provided above the inspection well. A Y-shaped connecting rod and a water supply pipe are provided in the inspection well. The top end of the Y-shaped connecting rod is coaxially connected to the output shaft of the motor, and the bottom end of the Y-shaped connecting rod is provided with a mud shovel plate. A sediment pump is provided on the bottom surface of the rainwater sedimentation tank.

[0004] Although the above technology can separate the silt attached to the bottom of the rainwater sedimentation tank and then pump the separated silt out of the rainwater sedimentation tank through a silt pump, there is at least a problem that the silt at the bottom of the tank is easily sucked into the water-saving irrigation pipe by the lifting water pump, the silt removal device has a complex structure, requires electricity, and has high cost, and is particularly difficult to adapt to hillside environments where power and water transmission are difficult. Summary of the invention

[0005] The purpose of the present invention includes providing an automatic mud-draining and water-saving irrigation device for high-altitude vegetable planting, which can realize automatic mud discharge through excess rainwater after water storage is completed, and the water flowing into the drainage pipe has lower impurities.

[0006] In order to achieve the above object, the present invention has the following technical solutions:

[0007] The present invention provides an automatic mud-draining and water-saving irrigation device for high-altitude vegetable planting, comprising a rainwater collecting ditch and a pool arranged on a high mountain slope, wherein the rainwater collecting ditch is connected to the pool, and the pool is a self-draining mud pool, which comprises an upper pool body, a lower pool body, and an automatic mud-draining assembly, wherein:

[0008] The bottom surface of one end of the upper pool body and the lower pool body is provided with a water outlet joint, the lower end of the water outlet joint is connected to a mud discharge pipe, and the mud discharge pipe extends out of the hillside;

[0009] An overflow port is provided at the upper portion of the front wall at the other end of the upper pool body;

[0010] The lower end of the front wall of the upper tank body is connected to the upper end of the rear wall of the lower tank body, and the upper end opening of the lower tank body is located directly below the overflow port;

[0011] The automatic mud discharge assembly is connected to the upper tank body and / or the lower tank body.

[0012] Preferably, the rainwater collecting culvert is arranged in a "Y" shape on the hillside.

[0013] Preferably, a sealing ring is connected to the top of the water outlet joint.

[0014] Preferably, the depths of the upper pool body and the lower pool body gradually decrease from back to front.

[0015] Preferably, the upper pool body and the lower pool body are of the same length.

[0016] Preferably, a guide cover is connected to the outside of the overflow port, and the guide cover is used to block the forward surge of water flowing out of the overflow port to flow toward the front wall of the upper pool body, and / or flow downward to the lower pool body.

[0017] Preferably, the automatic mud discharge assembly includes a first hole cover, a first pull rope connected to one end of the first hole cover, a second hole cover, a second pull rope connected to one end of the second hole cover, a control rod, and a pulley for guiding the first pull rope and the second pull rope to the pulley connected to the control rod, wherein:

[0018] The pulley is connected to the wall of the self-draining mud pool through a pulley seat;

[0019] The other end of the first hole cover is rotatably connected to the upper part of the water outlet hole joint on the bottom surface of the upper pool body; the first hole cover can block the water outlet hole joint on the bottom surface of the upper pool body;

[0020] The other end of the second hole cover is rotatably connected to the upper part of the water outlet joint on the bottom surface of the lower tank body; the second hole cover can block the water outlet joint on the bottom surface of the lower tank body;

[0021] The control rod is movably connected to the wall of the self-draining mud pool. When the water level in the self-draining mud pool reaches a set value, the control rod is used to pull up one end of the first hole cover through the first pull rope, and is used to pull up one end of the second hole cover through the second pull rope.

[0022] Preferably, the first hole cover and the second hole cover are replaced by a ball valve or a valve component similar to a ball valve, and a reset spring and one end of a pull rope are connected to the handle (pulling the pull rope can turn the valve to open, and the valve can be closed under the action of the reset spring after loosening the rope), so that it can be controlled with less force.

[0023] Preferably, the first pull rope and the second pull rope are both stainless steel wire ropes.

[0024] Preferably, the control rod comprises a Z-shaped connecting rod and a first floating ball connected to one end of the Z-shaped connecting rod, the middle part of the Z-shaped connecting rod is rotatably connected to a Z-shaped connecting rod connector, the middle part of the double-row shaft hole plate of the Z-shaped connecting rod connector is rotatably connected to a pulley, the Z-shaped connecting rod connector is connected to the wall of the self-draining mud pool through a second fixing plate thereon, and the other end of the Z-shaped connecting rod is connected to the end of the first pull rope away from the first hole cover, and is connected to the end of the second pull rope away from the second hole cover;

[0025] The first float is located at the upper end portion of the upper pool body and / or the upper end portion of the lower pool body.

[0026] Preferably, a drain valve is connected to the wall of the lower pool body, one end of the drain valve is connected to a floating head pipe, the floating head pipe includes a connecting pipe, a second float, a connecting rod connected between the second float and the upper end of the connecting pipe, and a hose connected to the lower end of the connecting pipe, the hose is connected to the joint of the drain valve located on the inner side of the lower pool body through a pipe joint at its lower end.

[0027] Preferably, a filter screen is connected to the outside of the connecting rod.

[0028] Preferably, the connecting pipe is connected to a ring plate for supporting the connecting pipe away from the inner wall of the lower tank body.

[0029] Preferably, the hose is a corrugated tube, or a spiral steel wire skeleton hose.

[0030] Preferably, the outer end of the drain valve is connected to a water pipe, and the end of the water pipe away from the drain valve is connected to a water-saving irrigation pipe.

[0031] Preferably, the drainage valve is a remote-controlled main valve, and one end of the water-saving irrigation pipe close to the water delivery pipe is connected to a remote-controlled water valve.

[0032] Preferably, the water-saving irrigation pipe is a drip irrigation pipe.

[0033] Preferably, the rainwater collecting ditch comprises a U-shaped ditch excavated along the contour line according to the mountain terrain, the bottom and side walls of the ditch are paved with a water guide plate (existing product), the bottom surface of the water guide plate is connected to a siphon drainage trough (existing product), the top of the siphon drainage trough is covered with a non-woven geotextile for filtering water, the non-woven geotextile is paved with permeable soil, and the siphon drainage trough is connected to the upper pool body.

[0034] Preferably, the upper pool body and the lower pool body are made of integrally cast concrete.

[0035] Preferably, a cement cover plate is provided at the upper end of the upper pool body and / or the upper end of the lower pool body.

[0036] Preferably, the junction between the upper pool body and the hillside is reinforced with cement caulking, and a lateral water guide channel is provided to divert rainwater flowing from the outside of the rainwater collecting culvert above the upper pool body away from the upper pool body.

[0037] Due to the adoption of the above technical solution, the advantages of the present invention are:

[0038] 1. In the process of water storage, when the lower pool is nearly full of water, the first float floats up under the buoyancy of the water, causing the Z-shaped connecting rod to rotate around the rotating shaft on the Z-shaped connecting rod connector, and the end of the Z-shaped connecting rod away from the first float moves toward the front wall close to the upper pool, so that the first pull rope and the second pull rope are pulled, and then one end of the first hole cover and the second hole cover respectively blocking the water outlet joints of the upper pool and the lower pool are pulled up, so that the mud and sand and other impurities accumulated at the bottom of the upper pool and the lower pool are discharged from the water outlet joints and flow out from the mud discharge pipe When the rain stops and no more water is injected into the upper and lower pool bodies, as the water in the upper and lower pool bodies flows out from the mud discharge pipe, the first float moves down with the water surface in the pool. At the same time, the connecting rope end of the Z-shaped connecting rod gradually moves away from the front wall of the upper pool body, and the rope is gradually released. Under the action of the gravity of the hole cover and the pressure of the water in the pool body, the hole cover gradually approaches the top of the water outlet joint until it is completely blocked on the top of the water outlet joint. When the water level in the pool body reaches the set value, the bottom drainage is stopped, and the mud and slag are automatically discharged during the water storage process to complete the water storage.

[0039] 2. The present invention can automatically discharge mud and slag and complete water storage during the water storage process, saving energy and labor.

[0040] 3. The present invention filters rainwater through a rainwater collecting ditch, and then settles the rainwater from the rainwater collecting ditch through the upper pool body, and then discharges the settled rainwater to the lower pool body from an overflow port away from the inflow end, and then designs the drain valve on the lower pool body away from the overflow port, so as to further promote the effective sedimentation of rainwater. A floating head pipe is also provided to avoid drainage from the surface and bottom of the lower pool body, and a filter screen is connected to the water inlet of the floating head pipe. Multiple measures are taken to ensure the cleanliness of the water flowing into water-saving irrigation pipes such as drip irrigation pipes, and the water outlet is not easily blocked, so as to ensure the normal operation of the water-saving irrigation pipe and improve the service life of the pipe and related facilities and equipment.

[0041] 4. The self-draining mud pool provided by the present invention is an integrated structure with mutual support that is more solid. In addition, the self-draining mud pool is designed to be stepped, and the bottom is convex at the back and concave at the front, so it can be more firmly embedded and fixed on the hillside, not prone to slippage, stable and safe, and does not need to be completely buried in the hillside, so the construction volume is smaller.

[0042] 5. The non-woven geotextile for filtering in the rainwater collection ditch provided by the present invention is easy to replace and has low cost, so that the maintenance cost is low. It also has a siphon drainage effect and a higher water accumulation efficiency. Under the action of the siphon force, the water flow rate flowing into the siphon drainage trough is faster than the flow rate in the water filter pipe of the prior art, so that it is not easy for mud and sand to accumulate in the ditch and it is more durable.

[0043] 6. The present invention is provided with a remote control main valve and a remote control water valve connected to the drainage pipe and the water-saving irrigation pipe respectively, so as to facilitate remote control of the irrigation operation through a mobile phone.

[0044] 7. The present invention has a simple structure, low cost and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0046] Figure 1 A schematic diagram of the overall structure of an automatic mud-draining and water-saving irrigation device for alpine vegetable planting provided by an embodiment of the present invention;

[0047] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the rainwater collection culvert;

[0048] Figure 3 for Figure 1 A front view schematic diagram of a self-draining mud storage tank connected to a remote control main valve connected to a water pipe;

[0049] Figure 4 for Figure 3 AA sectional view of FIG.

[0050] Figure 5 for Figure 4 A side view schematic diagram of the floating head tube in FIG.

[0051] Figure 6 for Figure 4 A top view schematic diagram of a high seat guide pulley in FIG.

[0052] Figure 7 for Figure 4 Schematic diagram of a top view of the Z-shaped connecting rod connector.

[0053] In the figure: 1, hillside; 2, remote control main valve; 3, water pipe; 4, mud pipe; 5, permeable soil; 6, rotating shaft; 7, pulley; 8, Z-shaped connecting rod connector; 81, double-row shaft hole plate; 811, shaft hole; 82, second fixed plate; 9, water outlet joint; 91, sealing ring; 10, rainwater collection ditch; 11, siphon drainage trough; 12, non-woven geotextile; 13, water guide plate; 20, self-draining mud pool; 21, upper pool body; 211, overflow port; 212, deflector; 213, front convex wall ; 22. Lower pool body; 30. Control rod; 31. Z-shaped connecting rod; 32. First float; 40. Floating head tube; 41. Second float; 42. Connecting rod; 43. Filter; 44. Connecting pipe; 45. Ring plate; 46. Bellows; 461. Pipe joint; 50. First pull rope; 60. First hole cover; 70. High seat guide pulley; 71. Support long board; 72. First fixed plate; 80. Second hole cover; 90. Second pull rope; 100. Remote control water valve; 200. Water-saving irrigation pipe. DETAILED DESCRIPTION

[0054] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", "left", "right", "front", "back" and the like appear to indicate directions or positional relationships, they are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0056] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0057] The specific implementation method is now described as follows:

[0058] An embodiment of an automatic mud-draining and water-saving irrigation device for alpine vegetable planting provided by the present invention is shown in FIG. Figure 1 , including a rainwater collecting ditch 10 and a self-draining mud pool 20.

[0059] The self-draining mud pool 20 includes an upper pool body 21, a lower pool body 22, and an automatic mud discharge assembly. The lower end of the front wall of the upper pool body 21 is connected to the upper end of the rear wall of the lower pool body 22. The depths of the upper pool body 21 and the lower pool body 22 gradually decrease from back to front, and the lengths of the upper pool body 21 and the lower pool body 22 are equal. A water outlet joint 9 is provided on the bottom surface of one end of the upper pool body 21 and the lower pool body 22. A sealing ring 91 is connected to the top of the water outlet joint 9, and a mud discharge pipe 4 is connected to the lower end. The mud discharge pipe 4 extends out of the hillside 1; an overflow port 211 is provided on the upper part of the front wall of the other end of the upper pool body 21 , the outside of the overflow port 211 is connected with a guide cover 212, and the guide cover 212 is composed of baffles vertically connected on both sides of an arc-shaped plate; the lower front wall of the lower pool body 22 is sealed with a remote control main valve 2 at the end away from the overflow port 211, and the inner end of the remote control main valve 2 located in the lower pool body 22 is connected with a floating head pipe 40, and the outer end of the remote control main valve 2 located in the lower pool body 22 is connected with a water pipe 3, and the end of the water pipe 3 away from the remote control main valve 2 is connected with a water-saving irrigation pipe 200, and the end of the water-saving irrigation pipe 200 close to the water pipe 3 is connected with a remote control water valve 100, see Figure 1 , Figure 3 , Figure 4 .

[0060] The floating head pipe 40 includes a connecting pipe 44, a second floating ball 41, a connecting rod 42 connected between the second floating ball 41 and the upper end of the connecting pipe 44, a filter screen 43 connected to the outside of the connecting rod 42, a ring plate 45 connected to the outer peripheral surface of the connecting pipe 44, and a bellows 46 connected to the lower end of the connecting pipe 44. The bellows 46 is sealed and connected to the joint located on the inner side of the lower tank body 22 of the remote control main valve 2 through a pipe joint 461 at its lower end, see Figure 4 , Figure 5 .

[0061] The automatic mud discharge assembly includes a first hole cover 60, a first pull rope 50 connected to one end of the first hole cover 60, a second hole cover 80, a second pull rope 90 connected to one end of the second hole cover 80, a control rod 30, and a pulley 7, wherein the control rod 30 includes a Z-shaped connecting rod 31 and a first floating ball 32 connected to one end of the Z-shaped connecting rod 31, the middle part of the Z-shaped connecting rod 31 is rotatably connected to a Z-shaped connecting rod connector 8 through a rotating shaft 6, the middle part of the double-row shaft hole plate 81 of the Z-shaped connecting rod connector 8 is rotatably connected to the pulley 7, the Z-shaped connecting rod connector 8 is fixedly connected to the lower end of the outer front wall of the upper pool body 21 through the second fixed plate 82 thereon, the other end of the Z-shaped connecting rod 31 is connected to the end of the first pull rope 50 away from the first hole cover 60, and is connected to the end of the second pull rope 90 away from the second hole cover 80; the first floating ball 32 is located in the lower pool The upper port part of the body 22; the pulley 7 is respectively connected to the inner surface of the rear wall, the upper end of the front wall, the middle part of the outer surface of the front wall, and the lower part of the inner surface of the rear wall of the lower pool body 22 through the pulley seat, and the connecting line of each pulley 7 is in the same plane. The pulley connected to the middle part of the outer surface of the front wall of the upper pool body 21 is 2 high-seat guide pulleys 70, and the high-seat guide pulley 70 is fixedly connected to the middle section of the outer surface of the front wall of the upper pool body 21 through the first fixing plate 72; the other end of the first hole cover 60 is rotatably connected to the upper part of the water outlet joint 9 on the bottom surface of the upper pool body 21 through the rotating shaft 6, and the first hole cover 60 can block the water outlet joint 9 on the bottom surface of the upper pool body 21; the other end of the second hole cover 80 is rotatably connected to the upper part of the water outlet joint on the bottom surface of the lower pool body 22 through the rotating shaft 6, and the second hole cover 80 can block the water outlet joint on the bottom surface of the lower pool body 22, see Figure 3 , Figure 4 , Figure 6 , Figure 7 .

[0062] The rainwater collecting culvert 10 includes a U-shaped ditch excavated in a "Y" shape on a hillside. The bottom and side walls of the ditch are paved with a water guide plate 13. The bottom surface of the water guide plate 13 is connected to a siphon drainage groove 11. The siphon drainage groove 11 is covered with a non-woven geotextile 12 for filtering water. The non-woven geotextile 12 is paved with a permeable soil material 5. The siphon drainage groove 11 is connected to the upper end of the upper pool body 21. Figure 1 , Figure 2 .

[0063] In this embodiment, the bottom slope of the ditch excavated along the contour line according to the mountain terrain is 0.1%-0.3%, and the upper pool body 21 and the lower pool body 22 are made of integrally cast concrete; the water-saving irrigation pipe 200 is a drip irrigation pipe; the first pull rope 50 and the second pull rope 90 are both made of stainless steel wire ropes; the number of laying layers of the non-intrusive geotextile 12 can be selected according to the local soil particle grading to achieve the optimal water filtration effect; the bottom surface height of the lower pool body 22 is significantly higher than the height of the alpine vegetable planting area; when the water level in the lower pool body 22 reaches the set value (close to the upper port of the lower pool body 22), the control rod 30 can pull up one end of the first hole cover 60 through the first pull rope 50, and can pull up one end of the second hole cover 80 through the second pull rope 90, so as to realize mud and water discharge from the bottom of the upper pool body 21 and the lower pool body 22.

[0064] The principle of the floating head tube 40 included in the present invention to avoid the inhalation of impurities is:

[0065] The first float 32 is suspended in the water in the lower pool 22 due to its own buoyancy and the pulling force of the hose, so that the upper water inlet of the connecting pipe 44 is not exposed above the water surface. When the water level in the lower pool 22 drops to below the length of the hose, the first float 32 floats in the water in the lower pool 22 due to its own buoyancy and the pulling force of the hose, so that the upper water inlet of the connecting pipe 44 is not exposed above the water surface. When the water level in the lower pool 22 drops to a level where the buoyancy is insufficient to lift the connecting pipe 44, the annular plate 45 will prop the connecting pipe 44 away from the bottom of the lower pool 22. At the same time, under the filtration of the filter screen 43, floating objects and precipitated impurities such as retained sludge entering the water pipe 3 are further reduced.

[0066] The construction method of the present invention:

[0067] S1, digging a ditch, the depth and width of the ditch are such that the water guide plate 13 and the siphon drainage groove 11 can be placed therein, the curved portion of the water guide plate 13 is curved, and the upper surface of the siphon drainage groove 11 is about 20 to 100 mm away from the upper surface of the ditch;

[0068] S2, laying of siphon drainage components, first laying the convex surface of the water guide plate 13 upward in the ditch, then clamping the notch of the siphon drainage groove 11 downward on the water guide plate 13, then laying the non-woven geotextile 12 on the water guide plate 13, and finally filling the non-woven geotextile 12 with permeable soil material 5 to the top of the ditch;

[0069] S3. Excavate the base of the self-draining mud pool. At the lower end of the ditch, according to the length, width and height of the upper pool body 21 and the lower pool body 22, excavate a trapezoidal placement platform on the hillside and tamp it, keeping the bottom surface of the placement platform at a 40° slope with the inner side lower and the outer side higher;

[0070] S4, pouring of self-draining mud and water pool, using steel frame to pour concrete on the surrounding formwork;

[0071] S5. Sealing reinforcement: Use cement to seal and reinforce the upper and side surfaces of the upper pool body 21, as well as the side surfaces of the lower pool body 22 where they meet the hillside 1, and set up lateral diversion channels (used to divert rainwater flowing down from the rainwater collecting culvert 10 above the upper pool body 21, bypass it and away from the upper and lower pool bodies, and handle it in the conventional construction method, which will not be described in detail).

[0072] S6. Installation of functional components (according to the above components and connection relationships, conventional installation methods can be used and no further details will be given).

[0073] The above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the embodiments here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. An automatic mud-draining and water-saving irrigation device for alpine vegetable planting, comprising a rainwater collecting ditch (10) and a pool connected to the rainwater collecting ditch (10), characterized in that: The water pool is a self-draining mud pool (20), and the self-draining mud pool (20) comprises an upper pool body (21), a lower pool body (22), and an automatic mud discharge assembly, wherein: A water outlet joint (9) is provided on the bottom surface of one end of the upper tank body (21) and the lower tank body (22), and a mud discharge pipe (4) is connected to the lower end of the water outlet joint (9); An overflow port (211) is provided on the upper portion of the front wall of the other end of the upper pool body (21); The lower end of the front wall of the upper tank body (21) is connected to the upper end of the rear wall of the lower tank body (22), and the upper end opening of the lower tank body (22) is located directly below the overflow port (211); The automatic mud discharge assembly is connected to the upper tank body (21) and / or the lower tank body (22).

2. The automatic mud-draining and water-saving irrigation device for alpine vegetable planting according to claim 1, characterized in that: The outside of the overflow port (211) is connected to a flow guide cover (212).

3. The automatic mud-draining and water-saving irrigation device for alpine vegetable planting according to claim 1, characterized in that: The automatic mud discharge assembly comprises a first hole cover (60), a first pull rope (50) connected to one end of the first hole cover (60), a second hole cover (80), a second pull rope (90) connected to one end of the second hole cover (80), a control rod (30), and a pulley (7) for guiding the first pull rope (50) and the second pull rope (90) to the control rod (30), wherein: The pulley (7) is connected to the wall of the self-draining mud pool (20) via a pulley seat; The other end of the first hole cover (60) is rotatably connected to the upper part of the water outlet joint (9) on the bottom surface of the upper pool body (21); The other end of the second hole cover (80) is rotatably connected to the upper part of the water outlet joint on the bottom surface of the lower pool body (22); The control rod (30) is movably connected to the wall of the self-draining mud pool (20). When the water level in the self-draining mud pool (20) reaches a set value, the control rod (30) is used to pull up one end of the first hole cover (60) through the first pull rope (50), and is used to pull up one end of the second hole cover (80) through the second pull rope (90).

4. The automatic mud-draining and water-saving irrigation device for alpine vegetable planting according to claim 3, characterized in that: The control rod (30) comprises a Z-shaped connecting rod (31) and a first floating ball (32) connected to one end of the Z-shaped connecting rod (31); the middle part of the Z-shaped connecting rod (31) is rotatably connected to a Z-shaped connecting rod connector (8); the middle part of a double-row shaft hole plate (81) of the Z-shaped connecting rod connector (8) is rotatably connected to a pulley (7); the Z-shaped connecting rod connector (8) is connected to the wall of the self-draining mud pool (20) through a second fixing plate (82) thereon; the other end of the Z-shaped connecting rod (31) is connected to the end of the first pull rope (50) away from the first hole cover (60), and is connected to the end of the second pull rope (90) away from the second hole cover (80); The first float (32) is located at the upper end portion of the upper pool body (21) and / or the upper end portion of the lower pool body (22).

5. The automatic mud-draining and water-saving irrigation device for alpine vegetable planting according to claim 1 or 3, characterized in that: A drain valve is connected to the wall of the lower pool body (22), one end of the drain valve is connected to a floating head pipe (40), the floating head pipe (40) comprises a connecting pipe (44), a second float (41), a connecting rod (42) connected between the second float (41) and the upper end of the connecting pipe (44), and a hose connected to the lower end of the connecting pipe (44), the hose being connected to a joint of the drain valve located on the inner side of the lower pool body (22) via a pipe joint (461) at its lower end.

6. The automatic mud-draining and water-saving irrigation device for alpine vegetable planting according to claim 5, characterized in that: The outside of the connecting rod (42) is connected to a filter screen (43).

7. The automatic mud-draining and water-saving irrigation device for alpine vegetable planting according to claim 5, characterized in that: The connecting pipe (44) is connected to a ring plate (45) for supporting the connecting pipe (44) away from the inner wall of the lower tank body (22).

8. The automatic mud-draining and water-saving irrigation device for alpine vegetable planting according to claim 5, characterized in that: The hose is a corrugated tube (46) or a spiral steel wire skeleton hose.

9. The automatic mud-draining and water-saving irrigation device for alpine vegetable planting according to claim 1, characterized in that: The rainwater collecting culvert (10) comprises a U-shaped ditch excavated along the contour line according to the mountain terrain, the bottom and side walls of the ditch are paved with a water guide plate (13), the bottom surface of the water guide plate (13) is connected to a siphon drainage trough (11), the top of the siphon drainage trough (11) is covered with a non-woven geotextile (12) for filtering water, and the top of the non-woven geotextile (12) is paved with permeable soil (5), and the siphon drainage trough (11) is connected to the upper pool body (21).

10. The automatic mud-draining and water-saving irrigation device for alpine vegetable planting according to claim 1, characterized in that: The upper tank body (21) and the lower tank body (22) are made by integrally casting concrete.

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