Water-saving drip irrigation device for mine remediation

Abstract

The invention discloses a mine repair water-saving drip irrigation device, and relates to the technical field of water-saving spray irrigation, the mine repair water-saving drip irrigation device comprises a water pipe, the water pipe is fixedly connected with bearing frames symmetrically distributed along the water pipe, the water pipe is communicated with fixing pipes distributed at equal intervals, each fixing pipe is provided with a connecting pipe, the connecting pipe is internally and fixedly connected with a fixing block, and the fixing blocks are fixedly connected with the bearing frames. A lifting cylinder is slidably connected to the connecting pipe, a plurality of first water outlets are formed in the bottom of the lifting cylinder, first springs symmetrically distributed along the lifting cylinder are fixedly connected between the lifting cylinder and the connecting pipe, and a rotating ring is rotatably connected to the connecting pipe. The lifting cylinder is used for storing water and increasing weight to drive the rotating ring to adjust the opening degree of the water inlet, a negative feedback mechanism of'water pressure rise-water inlet drop 'is formed, high-pressure jet flow and low-pressure cutoff are effectively inhibited, and it is ensured that the drip irrigation rate is stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water-saving sprinkling irrigation technology, and in particular to a mine restoration water-saving drip irrigation device. BACKGROUND

[0002] In mine ecological restoration, drip irrigation is a key means to ensure the survival of vegetation. However, the large undulating topography of the mining area and the long water supply pipeline often result in severe water pressure fluctuations. Traditional drip irrigation devices mostly use fixed aperture emitters, and the water output is directly affected by water pressure: when the water pressure is too high, the water flow is ejected in the form of a jet, causing waste of water resources and soil erosion; when the water pressure is too low, the dripping water is insufficient or even interrupted, making it difficult to meet the water needs of plants.

[0003] Although existing pressure-compensating emitters can partially alleviate this problem, they mostly rely on elastic diaphragms or precise piston structures, which are prone to clogging or jamming in the dusty and poor water quality environment of the mining area, have low reliability, and are high in cost. The electric control adjustment scheme based on sensors and solenoid valves is difficult to apply in remote and powerless mine scenes due to the need for continuous power supply and communication. Moreover, the existing drip irrigation devices generally lack a dynamic matching mechanism between the inlet and outlet of water: when the water pressure suddenly increases, the inlet speed is much greater than the dripping speed, and the excess water flow cannot be buffered, directly leading to uncontrolled water output. If the inlet is simply reduced to limit the flow, it will also result in insufficient water supply at low pressure.

[0004] Therefore, the present application proposes a mine restoration water-saving drip irrigation device that, under fluctuating water pressure conditions, realizes self-adaptive dynamic adjustment of the inlet flow of the drip irrigation device through a purely mechanical structure to ensure stable water output and prevent jetting or interruption. SUMMARY

[0005] In order to overcome the shortcomings proposed in the above background art, the present application provides a mine restoration water-saving drip irrigation device.

[0006] A mine restoration water-saving drip irrigation device, comprising a water pipe, the water pipe is fixedly connected with a load-bearing frame symmetrically distributed along the water pipe, the water pipe is communicated with fixed pipes distributed at equal intervals, each fixed pipe is provided with a connecting pipe, the connecting pipe is fixedly connected with a fixed block, the connecting pipe is slidably connected with a lifting cylinder, the bottom of the lifting cylinder is provided with a plurality of first water outlets, the lifting cylinder and the connecting pipe are fixedly connected with first springs symmetrically distributed along the lifting cylinder, the connecting pipe is rotatably connected with a rotating ring, the outer side of the rotating ring is provided with first guide grooves symmetrically along the center of the rotating ring, the lifting cylinder is slidably connected with each first guide groove through a protruding column, the fixed block is provided with a first water inlet, the rotating ring is provided with a second water inlet, and the second water inlet and the first water inlet are in mutual alignment.

[0007] Further, the fixed pipe and the connecting pipe thereon are connected by threads.

[0008] Further, the side of the lifting cylinder is provided with a plurality of second water outlets, and the connecting pipe blocks the second water outlets.

[0009] Further, the first water inlet and the second water inlet are provided in the same shape.

[0010] Further, the water outlet plate is rotationally connected to the bottom of the lifting cylinder, and the water outlet plate is provided with a third water outlet corresponding to the first water outlet.

[0011] Further, the lifting frame is slidably connected to the lifting cylinder, and the water absorption ring is fixedly connected to the lifting frame, and the two guide rings are fixedly connected to the water absorption ring, and the second guide groove is formed in the guide ring and slidably connected to the water outlet plate.

[0012] Further, the second spring is symmetrically distributed along the lifting frame and is fixedly connected between the lifting cylinder and the lifting frame.

[0013] Further, the pressure relief valve is slidably connected to the side of the water pipe close to one of the bearing frames, and the third spring is fixedly connected between the pressure relief valve and the water pipe.

[0014] Beneficial effect: the lifting cylinder of the present application stores water and increases weight to drive the rotating ring to adjust the opening degree of the water inlet, forming a negative feedback mechanism of "water pressure rising -> water inlet reducing", effectively inhibiting high-pressure jet and low-pressure flow interruption, and ensuring stable drip irrigation rate.

[0015] The present application utilizes the moisture absorption and expansion / drying shrinkage characteristics of the water absorption ring to link the water outlet plate rotation to realize the physical switch of the drip hole, without the need for power supply, sensors or manual operation, which can automatically stop irrigation during rainfall and automatically restore on sunny days, eliminating ineffective irrigation and achieving significant water saving effect.

[0016] The lifting cylinder of the present application moves downward to trigger the second water outlet to assist in drainage, and the main pipe is provided with a mechanical pressure relief valve, which can deal with sudden high pressure in a double mechanism, prevent pipe explosion, drip head damage or structural failure, and improve the long-term operation reliability of the system. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the three-dimensional structure of the present application.

[0018] Figure 2 It is a schematic view of the three-dimensional structure of the water pipe, fixed pipe and connecting pipe of the present application.

[0019] Figure 3 It is a schematic view of the three-dimensional structure of the fixed pipe, connecting pipe and lifting cylinder of the present application.

[0020] Figure 4The figure is a schematic diagram of the three-dimensional structure of the lifting cylinder and the rotating ring and other components of the application.

[0021] Figure 5 The figure is a schematic diagram of the three-dimensional structure of the fixed pipe, connecting pipe and rotating ring and other components of the application.

[0022] Figure 6 The figure is a schematic diagram of the three-dimensional structure of the lifting frame, water absorption ring and guide ring and other components of the application.

[0023] Figure 7 The figure is a schematic diagram of the three-dimensional structure of the water pipe and pressure relief valve and other components of the application.

[0024] The figure is a schematic diagram of the three-dimensional structure of the water pipe and pressure relief valve and other components of the application. DETAILED DESCRIPTION

[0025] The application will be further described below in combination with the drawings and examples.

[0026] Example 1 The application provides a mine repair water-saving drip irrigation device, which is designed to solve the problems of low water resource utilization rate, irrigation system easily affected by water pressure fluctuation, high artificial management cost and other prominent problems in the process of ecological restoration in mining areas. The topography of the mine repair area is usually broken, the soil is poor, and the water source is scarce. The water supply pipe network is often unstable due to large elevation difference and long pipeline, and the traditional drip irrigation equipment is prone to jet spatter and drip head blockage under high pressure, and the water output is insufficient under low pressure, which seriously affects the survival rate of vegetation. At the same time, the mining area is often located in remote areas, and it is difficult to achieve fine artificial control. If irrigation cannot be stopped in time during the rainfall period, it will cause waste of valuable water resources. In view of the above problems, the application integrates a water pressure self-adaptive adjusting mechanism, a gravity-driven lifting type drip head, a rainwater sensing automatic opening and closing component and a pipeline pressure relief protection unit to build a water-saving drip irrigation system that does not require external energy and completely relies on the physical properties of hydraulics and materials to achieve intelligent response.

[0027] As shown in Figures 1 to 7 The device mainly includes a water pipe 101, a bearing frame 102, a fixed pipe 103, a connecting pipe 104, a lifting cylinder 105, a first spring 108, a rotating ring 109, a lifting frame 201, a water absorption ring 202, a guide ring 203, a water outlet plate 204, a second spring 206 and a pressure relief valve 301.

[0028] As Figures 1 to 5 shown, the water pipe 101 as the main water channel, along its length direction equidistantly connected with a plurality of fixed pipe 103, for distributing water flow to each irrigation point. To enhance the structural stability, the water pipe 101 outside fixed with along its left and right symmetric distribution of the carrier 102, can be directly inserted or anchored in the mine slope or repair planting area ground, effectively resist wind load and soil slip. Each fixed pipe 103 and its below the connecting pipe 104 using threaded connection, so that the drip irrigation unit can be independently disassembled, easy to install and maintain replacement in the field; connecting pipe 104 inside fixed with fixed block 1041, fixed block 1041 on the first water inlet 111; connecting pipe 104 on the rotating ring 109, rotating ring 109 on the corresponding position opening with the same shape as the first water inlet 111 second water inlet 112, the initial state of both completely aligned, forming a smooth water inlet channel.

[0029] Connecting pipe 104 on the up and down direction sliding connection with the lifting cylinder 105, the lifting cylinder 105 bottom opening has a plurality of first water outlet 106, for implementing drip irrigation operation. Lifting cylinder 105 side surface is provided with a plurality of second water outlet 107, but in the normal water pressure working state, these second water outlet 107 by connecting pipe 104 inner wall completely blocked, do not participate in the water. Lifting cylinder 105 and connecting pipe 104 between the fixed with along the lifting cylinder 105 symmetric distribution of the first spring 108, provide upward reset elastic force. The key is that the rotating ring 109 outside opening along the rotating ring 109 center symmetric first guide slot 110, first guide slot 110 is spiral, lifting cylinder 105 through the convex column and each first guide slot 110 sliding connection. When the lifting cylinder 105 due to the internal water storage weight and move down, the convex column along the first guide slot 110 sliding, forced rotating ring 109 rotation, thereby driving the second water inlet 112 relative to the first water inlet 111 gradually dislocation, dynamic reduction of water inlet cross section, realize the automatic feedback regulation of water inflow.

[0030] The specific working process is as follows: water flows into each fixed pipe 103 through the water pipe 101, then flows into the connecting pipe 104, and enters the lifting cylinder 105 through the first water inlet 111 and the second water inlet 112. Under normal water pressure, the water inlet speed is basically balanced with the dripping speed of the first water outlet 106, the lifting cylinder 105 is maintained at a high position, and the water inlet is fully opened. When the water pressure suddenly rises, the water flow in the connecting pipe 104 is quickly sprayed into the lifting cylinder 105 through the first water inlet 111 and the second water inlet 112, the water inlet speed is much greater than the dripping speed, and the excess water is temporarily stored in the lifting cylinder 105, reducing the influence of water pressure on water outlet, so that water still drips through the first water outlet 106 for natural drip irrigation, instead of high-pressure ejection. With the gradual increase of the water storage capacity, the overall weight of the lifting cylinder 105 increases, which moves downward to overcome the elastic force of the first spring 108. In this process, the convex column drives the rotating ring 109 to rotate under the guidance of the first guide groove 110, so that the first water inlet 111 and the second water inlet 112 are gradually out of position, thereby gradually reducing the area connected by the two, narrowing the water inlet channel, until the water inlet and dripping capacity are rebalanced. In this process, if the lifting cylinder 105 continues to move downward to the second water outlet 107 on the side wall of the lifting cylinder 105, the second water outlet 107 is opened, serving as an auxiliary pressure relief channel to accelerate drainage and prevent structural damage to the lifting cylinder 105 due to overload.

[0031] As shown in Figure 6 To further improve the drip irrigation precision and anti-blocking performance, the present application adds a water outlet plate 204, which is rotatably connected to the bottom of the lifting cylinder 105, and a third water outlet 205 corresponding to the first water outlet 106 is formed on the water outlet plate 204. Under normal conditions, the third water outlet 205 is aligned with the first water outlet 106, and water flows smoothly. This design not only allows the use of different aperture water outlet plates 204 to adapt to different plant water requirements, but also enables self-cleaning through slight rotation adjustment when the dripper is slightly blocked.

[0032] More importantly, the present application innovatively introduces a rainwater sensing automatic opening and closing mechanism. The device further comprises a lifting frame 201, a water absorption ring 202, a guide ring 203 and a second spring 206. The lifting frame 201 is slidably connected with the lifting cylinder 105, and the water absorption ring 202 is fixedly connected to the lifting frame 201. The water absorption ring 202 is preferably made of a high water absorption material, which has the characteristics of fast water absorption and slow evaporation. The guide ring 203 is fixedly connected to the two sides of the water absorption ring 202, and the second guide groove 2031 is formed on the guide ring 203. The second guide groove 2031 is slidably connected with the edge of the water outlet plate 204, and converts the longitudinal linear motion of the guide ring 203 into the rotary motion of the water outlet plate 204. The second spring 206 symmetrically distributed along the lifting frame 201 is fixedly connected between the lifting cylinder 105 and the lifting frame 201, and provides an upward restoring force.

[0033] In sunny or dry periods, the water in the water absorption ring 202 evaporates, the second spring 206 pushes the lifting frame 201 to the high position, the guide ring 203 pushes the water outlet plate 204 to rotate through the second guide groove 2031, so that the third water outlet 205 is aligned with the first water outlet 106, and the drip irrigation is carried out normally. Once it rains, the water absorption ring 202 quickly absorbs the rainwater and increases in weight to move downward, driving the lifting frame 201 to compress the second spring 206 to move downward, while the guide ring 203 moves downward synchronously, which pushes the water outlet plate 204 to rotate in the opposite direction through the second guide groove 2031, so that the third water outlet 205 is completely misaligned with the first water outlet 106, physically blocking the water dripping channel, realizing automatic rain stop irrigation, avoiding ineffective irrigation, reducing water resource waste, and realizing water-saving drip irrigation. After the rain stops, the water in the water absorption ring 202 evaporates naturally, the second spring 206 resets, driving the entire mechanism to rebound, and the drip irrigation is restarted. This process does not require electricity, sensors or manual intervention, and completely relies on material properties and mechanical linkage, and is particularly suitable for mine repair scenes without electricity and with less manual operation.

[0034] As shown in Figure 7 In addition, in order to protect the safety of the main pipeline, the water pipe 101 is slidingly connected with the upper side wall of the right end carrier 102 in the up-down direction, and a pressure relief valve 301 is arranged between the water pipe 101 and the pressure relief valve 301. The third spring 302 is fixedly connected between the water pipe 101 and the pressure relief valve 301. If the water pressure abnormally rises due to system failure or operation error, the water pressure overcomes the pre-tightening force of the third spring 302, pushes the pressure relief valve 301 to slide upward, opens the bypass overflow port, and part of the water flow is discharged outside the pipe, rapidly reduces the pressure in the pipe, and prevents pipe explosion or joint shedding. After the pressure returns to normal, the third spring 302 pushes the pressure relief valve 301 to reset and seal, and the system automatically recovers.

[0035] In material selection, the water pipe 101 and the fixed pipe 103 are made of high-density polyethylene (HDPE) or modified PVC, which is corrosion-resistant and anti-ultraviolet; the lifting cylinder 105, the connecting pipe 104 and the rotating ring 109 are made of engineering plastics (such as POM or PA66), which have both strength and low friction coefficient; the springs are made of stainless steel 304 material, which ensures that they are not rusted for long-term outdoor use. All movable joints are designed with dustproof sealing rings to prevent the invasion of mine dust from causing jamming.

[0036] In actual deployment in mines, the device can be arranged along the contour line, and each drip irrigation point covers 1-2 restored seedlings (such as sea buckthorn, shrub, purple pagoda tree and other drought-resistant species). Due to the water pressure self-stabilization and rainwater self-closing functions, even if there is a height difference of tens of meters on the same pipeline, the drippers can still maintain uniform dripping speed; the system automatically hibernates during rainfall and automatically wakes up after the rain, which significantly improves the water resource utilization efficiency by more than 40%. At the same time, the modular design supports quick replacement of damaged units, which greatly reduces the operation and maintenance cost.

[0037] In summary, the application builds a set of "intelligent and independent of intelligence" mine repair water-saving drip irrigation system through multi-stage mechanical feedback and environmental response mechanism, not only solves the technical bottleneck of traditional drip irrigation under complex terrain and unstable water supply conditions, fundamentally solves the adaptability problem of traditional drip irrigation under complex working conditions, and realizes the "perception-decision-execution" closed loop with clever mechanical wisdom, provides an innovative paradigm for the green and autonomous development of intelligent water conservancy and ecological restoration equipment, and provides reliable technical support for sustainable vegetation restoration in ecologically fragile areas. The whole system only relies on water pressure, gravity and material physical properties, does not need external energy or control system, is especially suitable for mine repair projects in areas with poor transportation and no power grid coverage, and reduces the deployment threshold and operation and maintenance cost.

[0038] Although embodiments of the application have been shown and described, it is to be understood that the application is not limited to these embodiments. Since modifications can be made in these embodiments without departing from the principles and spirit of the application, the scope of the application is defined by the appended claims as well as equivalents thereto.

Claims

1. A water-saving drip irrigation device for mine restoration, comprising a water pipe (101), wherein the water pipe (101) is fixedly connected to a support frame (102) symmetrically distributed along the water pipe (101), and the water pipe (101) is connected to fixed pipes (103) distributed at equal intervals, and each of the fixed pipes (103) is provided with a connecting pipe (104), characterized in that, A fixing block (1041) is fixedly connected inside the connecting pipe (104). A lifting cylinder (105) is slidably connected to the connecting pipe (104). Several first water outlets (106) are opened at the bottom of the lifting cylinder (105). A first spring (108) is fixedly connected between the lifting cylinder (105) and the connecting pipe (104) and is symmetrically distributed along the lifting cylinder (105). A rotating ring (109) is rotatably connected to the connecting pipe (104). A first guide groove (110) is opened on the outer side of the rotating ring (109) and is symmetrical along the center of the rotating ring (109). The lifting cylinder (105) is slidably connected to each of the first guide grooves (110) through a protruding post. A first water inlet (111) is opened on the fixing block (1041). A second water inlet (112) is opened on the rotating ring (109). The second water inlet (112) is aligned with the first water inlet (111).

2. The water-saving drip irrigation device for mine restoration as described in claim 1, characterized in that, The fixed tube (103) is connected to the connecting tube (104) thereon by a thread.

3. The water-saving drip irrigation device for mine restoration as described in claim 2, characterized in that, The lifting cylinder (105) has several second water outlets (107) on its side, and the connecting pipe (104) blocks the second water outlets (107).

4. The water-saving drip irrigation device for mine restoration as described in claim 3, characterized in that, The first water inlet (111) and the second water inlet (112) are set to the same shape.

5. The water-saving drip irrigation device for mine restoration as described in claim 4, characterized in that, It also includes a water outlet plate (204), which is rotatably connected to the bottom of the lifting cylinder (105). The water outlet plate (204) has a third water outlet (205) that corresponds one-to-one with the first water outlet (106).

6. The water-saving drip irrigation device for mine restoration as described in claim 5, characterized in that, It also includes a lifting frame (201), which is slidably connected to the lifting cylinder (105). A water-absorbing ring (202) is fixedly connected to the lifting frame (201), and two guide rings (203) are fixedly connected to the water-absorbing ring (202). A second guide groove (2031) is opened on the guide ring (203), and the second guide groove (2031) is slidably connected to the water outlet plate (204).

7. A water-saving drip irrigation device for mine restoration as described in claim 6, characterized in that, It also includes a second spring (206) symmetrically distributed along the lifting frame (201), the second spring (206) being fixed between the lifting cylinder (105) and the lifting frame (201).

8. The water-saving drip irrigation device for mine restoration as described in claim 7, characterized in that, It also includes a pressure relief valve (301), which is slidably connected to the side of the water pipe (101) near one of the support frames (102), and a third spring (302) is fixed between the pressure relief valve (301) and the water pipe (101).

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