Saline-alkali soil greening system

Abstract

The utility model relates to the technical field of saline-alkali soil greening, and discloses a saline-alkali soil greening system which comprises a sealing tank, the front side of the top wall of the sealing tank is communicated with an exhaust pipe, the rear end of the exhaust pipe is communicated with a vacuum machine, the bottom end of the right side of the sealing tank is communicated with a main flow pipe, and the front side of the main flow pipe is communicated with a plurality of branch flow pipes at equal intervals. The middle parts of the plurality of shunt pipes are communicated with a plurality of output pipes, the middle parts of the plurality of output pipes are fixedly provided with pressure measuring one-way valves, the left sides of the plurality of output pipes are communicated with pressure cylinders, and the inner top walls of the plurality of pressure cylinders are fixedly connected with spring cylinders. According to the device, air in the pipeline is pumped through the vacuum machine, negative pressure is generated, underground water which is about to permeate into the roots of the green plants is pumped into the sealing tank in time, the underground water level is effectively lowered, salt can be prevented from rising to the root layer along with the underground water, and the risk of soil salinization is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of saline-alkali land greening, in particular to a saline-alkali land greening system. Background Art

[0002] A saline-alkali land greening system is a comprehensive solution or device aiming to transform the originally barren and severely saline-alkali land into a vibrant green landscape. Currently, there are still many challenges in the greening work of saline-alkali land. The main reason is that the high salt content in saline-alkali soil has an adverse effect on the growth of most plants. Traditional saline-alkali land greening methods include soil replacement, land leveling, deep plowing and sunning the soil, and raising the ground surface. However, these methods are costly and have unstable effects.

[0003] After retrieval, the Chinese patent publication number is: A saline-alkali land greening system, a seaside saline-alkali land greening alkali drainage system, which relates to the technical field of greening alkali drainage, including soil arranged on the ground. A first hollow groove is opened on the upper side of the soil. A diversion pipe is fixedly connected inside the first hollow groove. Water flow grooves are opened on the surface of the diversion pipe. A first installation groove is opened on the upper side of the soil, which improves the problem that the alkali drainage measures in most coastal cities are not in place. In this application, a first hollow groove, a second hollow groove and a third hollow groove are respectively opened inside the soil for fixing and arranging the diversion pipe, the connecting pipe and the drainage pipe. At the same time, the soil can be flushed through the diversion pipe, so that the distributed alkali in the soil can be flushed out, thereby protecting the beautifying plants. At the same time, alkali-tolerant plants are planted outside the beautifying plants, and the alkali resistance of the alkali-tolerant plants themselves is used to protect the soil and absorb alkali, further reducing the alkali content rate of the soil. However, due to the influence of rainfall, the horizontal height of the groundwater in the saline-alkali land will increase significantly. The groundwater in the saline-alkali land has a high salt content. When the groundwater is close to saturation, it will be close to the ground surface and affect the growth of green plants. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a saline-alkali land greening system, aiming to improve the problem that the horizontal height of the groundwater in the saline-alkali land will increase significantly due to rainfall. Since the groundwater in the saline-alkali land has a high salt content, when the groundwater is close to saturation, it will be close to the ground surface and affect the growth of green plants.

[0005] To achieve the above object, the utility model adopts the following technical solutions: A greening system for saline-alkali land includes a sealed tank. The front side of the top wall of the sealed tank is communicated with an air extraction pipe, and the rear end of the air extraction pipe is communicated with a vacuum machine. The right bottom end of the sealed tank is communicated with a main flow pipe, and a plurality of shunt pipes are equidistantly communicated with the front side of the main flow pipe. A plurality of output pipes are communicated with the middle of the plurality of shunt pipes. Pressure-measuring check valves are fixedly installed in the middle of the plurality of output pipes. The left sides of the plurality of output pipes are communicated with pressure cylinders. Spring cylinders are fixedly connected to the inner top walls of the plurality of pressure cylinders. Sliding rods are slidably connected to the inner walls of the plurality of spring cylinders. Rubber sealing sheets are fixedly connected to the bottom ends of the plurality of sliding rods. Tension springs are fixedly connected to the bottom ends of the plurality of spring cylinders. The bottom ends of the plurality of tension springs are fixedly connected to the top walls of the plurality of rubber sealing sheets. Pressure gauges are fixedly installed on the front sides of the top walls of the plurality of rubber sealing sheets. Positioning columns are fixedly connected to the left and right sides of the inner walls of the plurality of pressure cylinders. The inner walls of the plurality of rubber sealing sheets are slidably connected to the outer walls of the plurality of positioning columns. A mixing irrigation device is arranged at the front top end of the sealed tank.

[0006] Through the above technical solution: When the water pressure makes the rubber sealing sheet move upward to compress the tension spring, at the same time, the pressure gauge sends a signal to the vacuum machine to start it. By extracting the air in the pipeline and generating negative pressure, the groundwater that is about to penetrate to the root of the green plants can be timely pumped into the sealed tank, effectively reducing the groundwater level. This can not only prevent the salt from rising with the groundwater to the root layer and reduce the risk of soil salinization, but also provide sufficient growth space for the green plants and promote their healthy growth.

[0007] As a further description of the above technical solution:

[0008] The mixing irrigation device includes a supply pipe. The front end of the supply pipe is communicated with a mixing tank. A water pump is fixedly installed in the middle of the supply pipe. The water pump is fixedly installed at the rear side of the top wall of the mixing tank. The front side of the mixing tank is communicated with a feeding port. A rotating motor is fixedly installed in the middle of the top wall of the mixing tank. A stirring shaft is fixedly connected to the middle of the bottom end of the rotating motor. A plurality of mixing plates are equidistantly fixedly connected to the outer wall of the stirring shaft. Sliding teeth are fixedly connected to the far ends of the plurality of mixing plates. Two sliding rails are fixedly connected to the inner wall of the mixing tank. The upper and lower sliding teeth are respectively slidably connected to the outer walls of the two sliding rails. One-way irrigation valves are fixedly installed in the upper middle parts of the plurality of output pipes. The top ends of the plurality of output pipes are communicated with planting bowls.

[0009] Through the above technical solution: the rotating motor is used to mix the nutrients and water in the mixing tank, and a water pump is used to transport them to each output pipe. The one-way irrigation valves installed in the upper middle part ensure that the solution can only flow unidirectionally into the planting bowls to avoid backflow, and uniformly penetrate into the plant roots through the capillary action of the soil, achieving uniform absorption, reducing the evaporation loss of water, realizing efficient water-saving irrigation, and providing strong support for the greening work of saline-alkali land.

[0010] As a further description of the above technical solution:

[0011] A control console is fixedly connected to the left side of the mixing tank, and a plurality of control buttons are fixedly installed on the top of the control console.

[0012] Through the above technical solution: the control console is responsible for the control integration of the entire greening system, and the control buttons on its top can control the opening and closing of the vacuum machine, water pump and rotating motor.

[0013] As a further description of the above technical solution:

[0014] Two rotating shafts are fixedly connected to the rear side of the top of the feed inlet, and dust-proof covers are rotatably connected to the tops of the two rotating shafts.

[0015] Through the above technical solution: the dust-proof covers on the rotating shafts are used to prevent dust and sundries from entering the feed inlet, ensuring the cleanliness of the internal environment of the mixing tank and the purity of the greening materials.

[0016] As a further description of the above technical solution:

[0017] A pressure gauge is fixedly installed in the middle of the front side of the sealed tank, and the pressure gauge is electrically connected to the control console.

[0018] Through the above technical solution: the pressure gauge is used to monitor the pressure inside the sealed tank in real time, and can be electrically connected to the control console to adjust the pressure as needed to ensure the safe and stable operation of the system.

[0019] As a further description of the above technical solution:

[0020] A rotary valve is fixedly installed in the middle of the main pipe, and a drain pipe is connected to the bottom left end of the sealed tank.

[0021] Through the above technical solution: the rotary valve in the middle of the main pipe can adjust the liquid flow rate in the main pipe, thereby controlling the irrigation intensity. At the same time, when it is completely closed, opening the drain pipe can drain the liquid in the sealed tank when cleaning or replacing the water source is needed.

[0022] As a further description of the above technical solution:

[0023] In the middle of the inner bottom walls of multiple said planting bowls, there are fixedly connected sealing sleeves, and at the top ends of multiple said sealing sleeves, there are fixedly connected mudguard covers.

[0024] Through the above technical solution: The sealing sleeves and the mudguard covers can prevent the soil from flowing out of the planting bowls during irrigation, and at the same time ensure that the irrigation liquid can be evenly distributed in the planting bowls.

[0025] As a further description of the above technical solution:

[0026] At the bottom ends of multiple said output pipes, there are fixedly connected filter covers, and on the inner walls of multiple said filter covers, there are fixedly connected filter meshes.

[0027] Through the above technical solution: The filter covers at the bottom ends of the output pipes and the filter meshes inside them can filter impurities such as soil carried by the groundwater during the rising process, avoiding clogging the output pipes and affecting the growth of green plants.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, by using a pressure gauge to detect the pressure in the pressure cylinder and starting a vacuum machine to extract the air in the pipeline, the groundwater that is about to penetrate to the roots of the green plants can be timely pumped into the sealed tank, effectively reducing the groundwater level. In this way, it can prevent salts from rising with the groundwater to the root layer and reduce the risk of soil salinization.

[0030] 2. In the utility model, by rotating the motor to mix the nutrients in the mixing tank with water and passing through the one-way irrigation valve into the planting bowls, it is ensured that the solution can only flow in one direction, achieving uniform absorption, reducing the evaporation loss of water, realizing efficient water-saving irrigation, and providing strong support for the greening work of saline-alkali land. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is the front view of a saline-alkali land greening system proposed by the utility model;

[0032] Figure 2 It is the three-dimensional view of a saline-alkali land greening system proposed by the utility model;

[0033] Figure 3 It is the structural schematic diagram of the output pipe of a saline-alkali land greening system proposed by the utility model;

[0034] Figure 4 It is a saline-alkali land greening system proposed by the utility model Figure 3 The enlarged view of part A in;

[0035] Figure 5 It is the cross-sectional view of the mixing tank of a saline-alkali land greening system proposed by the utility model;

[0036] Figure 6Structural disassembly diagram of a sealing sleeve for a saline-alkali land greening system proposed by the present utility model;

[0037] Figure 7 Schematic structural diagram of a filter screen for a saline-alkali land greening system proposed by the present utility model.

[0038] Legend description:

[0039] 1. Sealing tank; 2. Mixing irrigation device; 201. Supply pipe; 202. Water pump; 203. Mixing tank; 204. Feed inlet; 205. Rotating motor; 206. Stirring shaft; 207. Mixing plate; 208. Sliding tooth; 209. Sliding rail; 210. One-way irrigation valve; 211. Planting bowl; 3. Air extraction pipe; 4. Vacuum machine; 5. Main pipe; 6. Shunt pipe; 7. Output pipe; 8. Pressure measuring one-way valve; 9. Pressure cylinder; 10. Spring cylinder; 11. Sliding rod; 12. Rubber sealing sheet; 13. Tension spring; 14. Pressure gauge; 15. Positioning column; 16. Console; 17. Control button; 18. Rotating shaft; 19. Dust cover; 20. Pressure gauge; 21. Rotating valve; 22. Drain pipe; 23. Sealing sleeve; 24. Mud guard; 25. Filter cover; 26. Filter screen. Specific implementation manner

[0040] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0041] Refer to Figure 2 , Figure 3 and Figure 4, An embodiment provided by the utility model: A saline-alkali land greening system, including a sealed tank 1, the front side of the top wall of the sealed tank 1 is communicated with an air extraction pipe 3, the rear end of the air extraction pipe 3 is communicated with a vacuum machine 4, the right bottom end of the sealed tank 1 is communicated with a main flow pipe 5, the front side of the main flow pipe 5 is equidistantly communicated with a plurality of shunt pipes 6, the middle parts of the plurality of shunt pipes 6 are all communicated with a plurality of output pipes 7, a pressure measuring check valve 8 is fixedly installed in the middle of each of the plurality of output pipes 7, the left sides of the plurality of output pipes 7 are all communicated with a pressure cylinder 9, the inner top walls of the plurality of pressure cylinders 9 are all fixedly connected with a spring cylinder 10, a sliding rod 11 is slidably connected to the inner wall of each of the plurality of spring cylinders 10, the bottom ends of the plurality of sliding rods 11 are all fixedly connected with a rubber sealing sheet 12, the bottom ends of the plurality of spring cylinders 10 are all fixedly connected with a tension spring 13, the bottom ends of the plurality of tension springs 13 are all fixedly connected to the top walls of the plurality of rubber sealing sheets 12, a pressure gauge 14 is fixedly installed on the front side of the top walls of the plurality of rubber sealing sheets 12, positioning columns 15 are fixedly connected to the left and right sides of the inner walls of the plurality of pressure cylinders 9, and the inner walls of the plurality of rubber sealing sheets 12 are all slidably connected to the outer walls of the plurality of positioning columns 15. A mixing irrigation device 2 is arranged at the front top end of the sealed tank 1;

[0042] Specifically, when the groundwater enters the pressure cylinder 9 through the plurality of output pipes 7, as the water level rises, the pressure inside the pressure cylinder 9 gradually increases. The rubber sealing sheet 12 moves upward under the pressure of the water, and at the same time compresses the tension spring 13. When the pressure value measured by the pressure gauge 14 reaches the preset value, a signal is sent to the vacuum machine 4 to start it. The air in the sealed tank 1, the main flow pipe 5, the shunt pipes 6 and the output pipes 7 is extracted through the air extraction pipe 3. Since the air in the pipeline is extracted and a negative pressure is generated, the groundwater that is about to penetrate to the roots of the green plants can be timely pumped into the sealed tank 1, effectively reducing the groundwater level. This can not only prevent the salt from rising to the root layer along with the groundwater, reducing the risk of soil salinization, but also provide sufficient growth space for the green plants and promote their healthy growth.

[0043] Refer to Figure 1 、 Figure 2 and Figure 5, the mixing and irrigation device 2 includes a supply pipe 201. The front end of the supply pipe 201 is communicated with a mixing tank 203. A water pump 202 is fixedly installed in the middle of the supply pipe 201. The water pump 202 is fixedly installed at the rear side of the top wall of the mixing tank 203. The front side of the mixing tank 203 is communicated with a feed inlet 204. A rotating motor 205 is fixedly installed in the middle of the top wall of the mixing tank 203. The middle of the bottom end of the rotating motor 205 is fixedly connected with a stirring shaft 206. A plurality of mixing plates 207 are fixedly connected to the outer wall of the stirring shaft 206 at equal intervals. Sliding teeth 208 are fixedly connected to the far ends of the plurality of mixing plates 207 away from each other. Two sliding rails 209 are fixedly connected to the inner wall of the mixing tank 203. The upper plurality of sliding teeth 208 and the lower plurality of sliding teeth 208 are respectively slidably connected to the outer walls of the two sliding rails 209. One-way irrigation valves 210 are fixedly installed in the upper middle parts of the plurality of output pipes 7. The tops of the plurality of output pipes 7 are communicated with planting bowls 211;

[0044] Specifically, when it is necessary to supply nutrients and water to the green plants, the water source and nutrients enter the mixing tank 203 through the feed inlet 204. After the feeding is completed, the rotating motor 205 drives the stirring shaft 206 and the mixing plates 207 thereon to rotate in the mixing tank 203. The sliding teeth 208 on the mixing plates 207 slide on the sliding rails 209 to ensure the stability of the stirring process and at the same time strengthen the mixing effect of the nutrients and water. The fully mixed nutrient aqueous solution is driven by the water pump 202 and is transported to each output pipe 7 through the supply pipe 201. One-way irrigation valves 210 are installed in the upper middle parts of each output pipe 7 to ensure that the solution can only flow unidirectionally to the planting bowl 211, avoiding backflow, so that the planting bowl 211 only allows the solution to enter from the bottom and uniformly penetrates to the plant roots through the capillary action of the soil, realizing uniform absorption. This bottom irrigation method not only reduces the evaporation loss of water but also avoids damage to the plant leaves due to direct contact with the high-concentration solution, realizing efficient water-saving irrigation and providing strong support for the greening work of saline-alkali land.

[0045] Refer to Figure 2 , the left side of the mixing tank 203 is fixedly connected with a control console 16. A plurality of control buttons 17 are fixedly installed on the top of the control console 16; the rear side of the top end of the feed inlet 204 is fixedly connected with two rotating shafts 18. The top ends of the two rotating shafts 18 are rotatably connected with dust covers 19; a pressure gauge 20 is fixedly installed in the middle of the front side of the sealed tank 1. The pressure gauge 20 is electrically connected with the control console 16;

[0046] Specifically, the control console 16 is responsible for the control integration of the entire greening system. The control buttons 17 on its top can control the opening and closing of the vacuum machine 4, the water pump 202, and the rotating motor 205. The dust cover 19 on the rotating shaft 18 is used to prevent dust and sundries from entering the feeding port 204, ensuring the cleanliness of the internal environment of the mixing tank 203 and the purity of the greening materials. The pressure gauge 20 is used to monitor the pressure inside the sealed tank 1 in real time and is electrically connected to the control console 16 to adjust the pressure as needed to ensure the safe and stable operation of the system.

[0047] Refer to Figure 2 、 Figure 6 and Figure 7 As shown in

[0048] Specifically, the rotary valve 21 in the middle of the main flow pipe 5 can adjust the liquid flow rate in the main flow pipe 5, thereby controlling the irrigation intensity. At the same time, when it is completely closed, opening the drain pipe 22 can drain the liquid in the sealed tank 1 when cleaning or replacing the water source is needed. The sealing sleeve 23 and the mud guard 24 can prevent the soil from flowing out of the planting bowl 211 during irrigation, and at the same time ensure that the irrigation liquid can be evenly distributed in the planting bowl 211. The filter cover 25 at the bottom of the output pipe 7 and the filter screen 26 inside it can filter impurities such as soil carried by the groundwater during the rising process, avoiding blocking the output pipe 7 and affecting the growth of green plants.

[0049] Working principle: When the groundwater enters the pressure cylinder 9 through multiple output pipes 7, as the water level rises, the pressure inside the pressure cylinder 9 gradually increases. The rubber sealing piece 12 moves upward under the pressure of the water, compressing the tension spring 13 at the same time. When the pressure value measured by the pressure gauge 14 reaches the preset value, a signal is sent to the vacuum machine 4 to start it. The air in the sealed tank 1, the main flow pipe 5, the shunt pipe 6, and the output pipe 7 is extracted through the suction pipe 3. Since the air in the pipeline is extracted and a negative pressure is generated, the groundwater that is about to penetrate to the roots of the green plants can be pumped into the sealed tank 1 in time, effectively reducing the groundwater level.

[0050] And when it is necessary to supply nutrients and water to the green plants, the water source and nutrients enter the mixing tank 203 through the feeding port 204. After the feeding is completed, the motor 205 is rotated to drive the stirring shaft 206 and the mixing plate 207 thereon to rotate in the mixing tank 203. The sliding teeth 208 on the mixing plate 207 slide on the sliding rail 209 to ensure the stability of the stirring process. At the same time, the mixing effect of the nutrients and water is enhanced. The fully mixed nutrient aqueous solution is driven by the water pump 202 and is transported to each output pipe 7 through the supply pipe 201. A one-way irrigation valve 210 is installed in the upper middle part of each output pipe 7 to ensure that the solution can only flow unidirectionally to the planting bowl 211 to avoid backflow, so that the planting bowl 211 only allows the solution to enter from the bottom and uniformly penetrates to the plant roots through the capillary action of the soil, realizing uniform absorption.

[0051] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A saline-alkali land greening system, comprising a sealed tank (1), characterized in that: The front side of the top wall of the sealed tank (1) is connected to an exhaust pipe (3), the rear end of the exhaust pipe (3) is connected to a vacuum machine (4), the right bottom end of the sealed tank (1) is connected to a main flow pipe (5), the front side of the main flow pipe (5) is equidistantly connected to a plurality of branch pipes (6), the middle parts of the plurality of branch pipes (6) are connected to a plurality of output pipes (7), the middle parts of the plurality of output pipes (7) are fixedly installed with a pressure measuring one-way valve (8), the left sides of the plurality of output pipes (7) are connected to a pressure cylinder (9), the inner top walls of the plurality of pressure cylinders (9) are fixedly connected to a spring cylinder (10), and the inner walls of the plurality of spring cylinders (10) are slidably connected to a sliding rod ( 11), the bottom ends of the plurality of sliding rods (11) are fixedly connected to rubber sealing sheets (12), the bottom ends of the plurality of spring cylinders (10) are fixedly connected to tension springs (13), the bottom ends of the plurality of tension springs (13) are fixedly connected to the top walls of the plurality of rubber sealing sheets (12), the front sides of the top walls of the plurality of rubber sealing sheets (12) are fixedly mounted with pressure gauges (14), the left and right sides of the inner walls of the plurality of pressure cylinders (9) are fixedly connected to positioning columns (15), the inner walls of the plurality of rubber sealing sheets (12) are slidably connected to the outer walls of the plurality of positioning columns (15), and a mixing and pouring device (2) is provided at the front top end of the sealing tank (1).

2. A saline-alkali land greening system according to claim 1, characterized in that: The mixing and watering device (2) comprises a supply pipe (201), the front end of the supply pipe (201) is connected to a mixing tank (203), a water pump (202) is fixedly installed in the middle of the supply pipe (201), the water pump (202) is fixedly installed on the rear side of the top wall of the mixing tank (203), the front side of the mixing tank (203) is connected to a feed inlet (204), a rotating motor (205) is fixedly installed in the middle of the top wall of the mixing tank (203), a stirring shaft (206) is fixedly connected to the middle of the bottom end of the rotating motor (205), and the The outer wall of the stirring shaft (206) is fixedly connected with a plurality of mixing plates (207) at equal intervals, and the ends of the plurality of mixing plates (207) that are far away from each other are fixedly connected with sliding teeth (208). The inner wall of the mixing tank (203) is fixedly connected with two sliding rails (209), and the plurality of sliding teeth (208) at the upper end and the plurality of sliding teeth (208) at the lower end are respectively slidably connected to the outer walls of the two sliding rails (209). The middle and upper parts of the plurality of output pipes (7) are fixedly installed with one-way irrigation valves (210), and the top ends of the plurality of output pipes (7) are connected with planting bowls (211).

3. A saline-alkali land greening system according to claim 2, characterized in that: The left side of the mixing tank (203) is fixedly connected to a control console (16), and the top of the control console (16) is fixedly mounted with a plurality of control buttons (17).

4. A saline-alkali land greening system according to claim 2, characterized in that: Two rotating shafts (18) are fixedly connected to the rear side of the top end of the feed port (204), and dust covers (19) are rotatably connected to the top ends of the two rotating shafts (18).

5. The saline-alkali land greening system according to claim 1, characterized in that: A pressure gauge (20) is fixedly mounted on the middle portion of the front side of the sealed tank (1), and the pressure gauge (20) is electrically connected to the control console (16).

6. The saline-alkali land greening system according to claim 1, characterized in that: A rotary valve (21) is fixedly installed in the middle of the main flow pipe (5), and a drainage pipe (22) is connected to the left bottom end of the sealed tank (1).

7. The saline-alkali land greening system according to claim 2, characterized in that: A sealing sleeve (23) is fixedly connected to the middle of the inner bottom wall of each of the plurality of planting bowls (211), and a mud guard cover (24) is fixedly connected to the top of each of the plurality of sealing sleeves (23).

8. The saline-alkali land greening system according to claim 1, characterized in that: The bottom ends of the plurality of output pipes (7) are all fixedly connected to filter covers (25), and the inner walls of the plurality of filter covers (25) are all fixedly connected to filter screens (26).

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