Ecological restoration irrigation equipment convenient to adjust
By adopting the design of two-way stirring and adjustable sprinkler heads in ecological restoration irrigation equipment, combined with multiple annularly distributed filtering mechanisms, the problem of existing equipment being unable to accurately irrigate, improve irrigation efficiency and water resource utilization, and meet the requirements of Ecological restoration needs of different plants.
Patent Information
- Application Number
- CN202411693901.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-01-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing ecological restoration irrigation equipment cannot accurately irrigate according to the moisture needs of different plants, resulting in waste of water and low irrigation efficiency, which cannot meet the ecological restoration needs of various plants.
An ecological restoration irrigation equipment with convenient regulation is designed, using a mixing mixing mechanism and an irrigation mechanism, including a bidirectional mixing assembly and an adjustable sprinkler head, combined with a filtration mechanism to achieve uniform mixing of moisture and precise irrigation.
Accurate irrigation of different plants is achieved, the quality and efficiency of ecological restoration is improved, water waste is reduced, filtration and maintenance process is simplified, and energy consumption and costs are reduced.
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Figure CN119256938A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of ecological restoration irrigation, and in particular to an ecological restoration irrigation device which is convenient to adjust. Background Art
[0002] Ecological restoration irrigation refers to the use of artificial or natural water sources to deliver water to or near the roots of plants through specific irrigation methods and equipment to meet the water conditions required for plant growth and promote the recovery and stability of the ecosystem. Its characteristics include precise irrigation, water resource conservation, improved irrigation efficiency, plant growth promotion and ecological balance maintenance.
[0003] In order to reduce manual intervention in the irrigation process and reduce the labor intensity of workers, some automated irrigation equipment has been proposed in the prior art. For example, the utility model patent with the Chinese patent announcement number CN220693996U discloses an ecological restoration irrigation device, which includes a base plate, a plug rod, a control valve, a water pipe, a nozzle and a reinforcement structure. In the ecological restoration project, the plug rod is inserted into the natural ecological land that needs to be repaired, and then the water pipe is connected to the water pipe, and the control valve is opened. The control valve can be automatically switched on and off at a fixed time. When the control valve is opened, the water in the water pipe will enter the inside of the control valve and then spray out from the nozzle. The sprayed water will irrigate the natural ecology, thereby ensuring the normal growth of crops and water replenishment.
[0004] Although the above-mentioned irrigation equipment has achieved automatic irrigation to a certain extent and saved manpower, it was found in actual use that the irrigation height of the equipment is fixed and it is impossible to accurately irrigate according to the water needs of different plants. Since the water needs of different plants vary greatly, the fixed irrigation height cannot ensure that each plant can obtain appropriate water, which is not conducive to plant growth and ecosystem recovery. In addition, the fixed height irrigation method may also lead to water waste, further affecting irrigation efficiency and water resource utilization. Therefore, the existing ecological restoration irrigation equipment has obvious deficiencies in precise irrigation and adapting to the needs of different plants, and an improved solution that can accurately irrigate according to plant needs is urgently needed. Summary of the invention
[0005] The present invention aims to provide an easily adjustable ecological restoration irrigation device to adapt to the needs of different plants and perform precise irrigation according to the needs of plants.
[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an easily adjustable ecological restoration irrigation device, comprising a mounting plate, on which a mixing and stirring mechanism and an irrigation mechanism are arranged, the mixing and stirring mechanism comprising a mixing barrel and a first stirring component and a second stirring component therein, the stirring directions of the two stirring components are opposite; the irrigation mechanism comprises an irrigation component and a support and adjustment component, the irrigation component comprises a sprinkler head and a connecting pipe, the connecting pipe connects the mixing barrel with the sprinkler head, the support and adjustment component comprises a threaded rod rotatably connected to the mounting plate, a sliding member is threadedly connected to the threaded rod, a connecting structure is arranged on the sliding member and connected to the connecting pipe; a filtering mechanism is also arranged on the mixing barrel, the filtering mechanism comprises a U-shaped guide plate, the guide plate is inclined downward toward the mixing barrel and one end extends into the mixing barrel, and a filter is detachably installed on one end of the guide plate near the mixing barrel.
[0007] The principles and advantages of this solution are:
[0008] 1. In actual application, in this solution, the connecting pipe and the sprinkler head are connected and fixed to the sliding part, the sliding part and the threaded rod are threadedly connected, and the rotation of the threaded rod drives the sliding part to move up and down, thereby adjusting the height of the sprinkler head. The overall structure is simple and easy to operate. It can achieve precise irrigation for plants with different height requirements, effectively improving the quality of ecological restoration.
[0009] 2. The fertilizer water used for ecological restoration irrigation needs to be mixed in proportion. In this scheme, a first stirring component and a second stirring component with opposite stirring directions are provided. Bidirectional stirring can achieve mixing in multiple directions to ensure that the various components in the fertilizer water (such as fertilizer, trace elements, water, etc.) are fully and evenly mixed, and the flow in opposite directions can enhance the turbulent effect of the liquid, effectively reduce the dead corners in the mixing container, ensure that the liquid in all areas can be effectively mixed, avoid local uneven concentration, and significantly improve the efficiency and quality of ecological restoration. At the same time, bidirectional stirring speeds up the mixing speed and shortens the mixing time.
[0010] 3. When preparing fertilizer water for ecological restoration, water from nearby rivers and lakes is usually used to save irrigation costs. However, there may be more impurities or algae in the water from rivers and lakes. If it is not filtered, it is easy to cause blockage inside the irrigation device. Frequent maintenance greatly affects the irrigation efficiency and increases the cost. In this solution, a filtering mechanism is set on the mixing cylinder to filter the impurities and residues in the liquid before mixing to prevent irrigation blockage. In addition, the filter element and the guide plate are detachably connected. The guide plate is an open groove structure. Once the filter element is blocked or damaged, it can be replaced or cleaned in time. Compared with the filtering structure set in a pipe or a closed groove, this solution greatly facilitates the installation and disassembly process of the filter element, ensuring the overall filtering efficiency and irrigation efficiency of the device.
[0011] Furthermore, a limit assembly is provided between the filter element and the guide plate, and the limit assembly is symmetrically arranged on both sides of the filter element. The limit assembly includes a limit element and a limit rod and a support column respectively arranged on the guide plate and the filter element. The limit rod is inserted into the guide plate, and the support column is arranged on the side of the filter element. The two ends of the limit element are respectively provided with mounting holes and limit holes that cooperate with the support column and the limit rod.
[0012] The above-mentioned arrangement not only fixes and strengthens the filter element to ensure its stability, but also simplifies the overall structure of the filter mechanism. The filter element can be quickly disassembled and assembled by disassembling and installing the limit parts. The maintenance and replacement of the filter mechanism is more convenient, which reduces the equipment maintenance cycle and will not excessively affect the normal use of the equipment, thereby ensuring the efficiency of the ecological restoration project.
[0013] Furthermore, the number of the filtering mechanisms is multiple, and the multiple filtering mechanisms are distributed in an annular manner around the mixing cylinder. The multiple filtering mechanisms can meet the requirements of simultaneous filtration of multiple liquids during fertilizer water preparation or multi-channel input filtration of a single liquid, saving time and improving preparation efficiency.
[0014] Furthermore, the limiter is whistle-shaped, one end of the mounting hole is cylindrical, the other end of the limiter hole is flat, and the two ends are smoothly connected. The whistle-shaped setting makes it easier to install and remove the limiter and the limiter rod, prevents structural interference, and makes the limiter itself more compact and light.
[0015] Furthermore, the number of the second stirring components is multiple and they are arranged in a ring around the first stirring component. Such an arrangement makes the liquid in the mixing barrel more turbulent, so that the solid particles and the liquid are more evenly dispersed, agglomeration and precipitation are avoided, the physical properties of the fertilizer water are improved, and it is more conducive to the growth of plants in the later stage, meeting the purpose of ecological restoration.
[0016] Furthermore, the first stirring component includes a first rotating shaft and a first stirring blade thereon, the second stirring component includes a second rotating shaft and a second stirring blade thereon, the first rotating shaft and the second rotating shaft are respectively connected to a driving gear and a driven gear, the end of the first rotating shaft is connected to a driving motor, and the driving gear and the driven gear are meshed for transmission; a mounting frame is provided on the mixing barrel, and the mounting frame is used to support the driving motor and the second rotating shaft.
[0017] In the above arrangement, the second stirring component is driven to rotate by the first stirring component through the meshing transmission of the driven gear and the driving gear, which not only effectively realizes two-way stirring, but also eliminates the need to set up multiple driving sources, fully utilizes the energy of the driving motor, and reduces energy consumption.
[0018] Furthermore, telescopic support rods are symmetrically installed on both sides of the threaded rod at the bottom of the connection structure. The telescopic support rods support the bottom of the sliding member to prevent the connection structure and the sprinkler head from sagging downward due to excessive liquid pressure during irrigation, and the sprinkler height cannot be maintained, affecting precise irrigation.
[0019] Furthermore, the first stirring blades are distributed at intervals along the circumferential direction and the axial direction of the first rotating shaft, and the second stirring blades are distributed along the circumferential direction of the second rotating shaft and are in a continuous plate shape in the axial direction.
[0020] The first stirring blades are distributed at intervals along the circumference and axial direction of the first rotating shaft in order to allow the fertilizer particles to have more movement paths during mixing and to have the function of breaking up lumps. As the main stirring structure, the second stirring blades are distributed along the circumference of the second rotating shaft and are continuous plate-shaped in the axial direction in order to enhance the flow of the liquid inside the mixing barrel, fully stir the edge liquid, and ensure overall uniform mixing.
[0021] Furthermore, a pump body is connected between the sprinkler head and the mixing barrel, and a support seat is provided between the pump body and the mixing barrel and the mounting plate. The support seat increases the spatial position of the pump body and the mixing barrel, reduces the height difference and the conveying distance between the sprinkler head and the sprinkler head, and realizes energy saving and consumption reduction.
[0022] Furthermore, a rotating structure for driving the driver is fixedly provided on the top of the threaded rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 The overall structure of the embodiment of the present invention is shown in FIG. Figure 1 .
[0024] Figure 2 The overall structure of the embodiment of the present invention is shown in FIG. Figure 2 .
[0025] Figure 3 Schematic diagram of the structure of the mixing and stirring mechanism according to an embodiment of the present invention.
[0026] Figure 4 Schematic diagram of the internal structure of the mixing and stirring mechanism according to an embodiment of the present invention.
[0027] Figure 5 Schematic diagram of the structure of the filtering mechanism of an embodiment of the present invention.
[0028] Figure 6 for Figure 5 A partial enlarged view of part A. DETAILED DESCRIPTION
[0029] The following is further described in detail through specific implementation methods:
[0030] The figure marks in the drawings of the specification include: mounting plate 1, irrigation mechanism 2, first connecting pipe 21, sliding member 22, supporting seat 23, threaded rod 24, telescopic supporting rod 26, fixing member 27, sprinkler head 28, second connecting pipe 29, fixing frame 201, special-shaped plate 202, rotating wheel 203, pump body 204, mixing and stirring mechanism 3, driving gear 31, first stirring blade 32, mounting frame 33, driving motor 34, second rotating shaft 35, connecting frame 36, driven gear 37, second stirring blade 38, mixing barrel 39, filtering mechanism 4, guide plate 41, handle 42, limit member 43, supporting column 44, limit rod 45, filtering element 46.
[0031] The embodiment is basically as shown in the attached Figure 1-Figure 6 As shown:
[0032] An easily adjustable ecological restoration irrigation device comprises a mounting plate 1, a roller is provided at the bottom of the mounting plate 1, a mixing and stirring mechanism 3 and an irrigation mechanism 2 are provided on the mounting plate 1; the mixing and stirring mechanism 3 comprises a mixing cylinder 39 and a first stirring component and a second stirring component therein, the stirring directions of the two stirring components are opposite, and the irrigation mechanism 2 comprises an irrigation component and a support and adjustment component.
[0033] Combination Figure 1 , Figure 2 As shown, the irrigation assembly includes a sprinkler head 28 and a connecting pipe, the connecting pipe connects the mixing cylinder 39 with the sprinkler head 28, a pump body 204 for enhancing the irrigation effect is connected between the sprinkler head 28 and the mixing cylinder 39, the connecting pipe includes a first connecting pipe 21 and a second connecting pipe 29, the first connecting pipe 21 connects the mixing cylinder 39 with the pump body 204, and the second connecting pipe 29 connects the pump body 204 with the sprinkler head 28; a support seat 23 is provided between the pump body 204 and the mixing cylinder 39 and the mounting plate 1, the support seat 23 increases the spatial position of the pump body 204 and the mixing cylinder 39, reduces the height difference and the conveying distance between the sprinkler head 28, and achieves energy saving and consumption reduction.
[0034] The support and adjustment assembly includes a threaded rod 24, the bottom of which is rotatably connected to the mounting plate 1, and a rotating structure for driving the threaded rod 24 to rotate is fixed on the top of the threaded rod 24. A sliding member 22 is threadedly connected to the threaded rod 24, and the sliding member 22 is cylindrical. A connecting structure is provided on the sliding member 22 and connected to the second connecting pipe 29. The connecting structure includes a special-shaped plate 202 mounted on the sliding member 22 and a fixing member 27 for fixing the second connecting pipe 29. The special-shaped plate 202 includes a circular block mounted on the outer periphery of the sliding member 22 and a rectangular block connected to the circular block in front and behind; telescopic support rods 26 are installed at the bottom of the rectangular blocks on the front and rear sides to prevent the connection structure and the sprinkler head 28 from drooping due to excessive liquid pressure during irrigation, and the sprinkler height cannot be maintained, which affects the precise irrigation.
[0035] Among them, the rotating structure is divided into manual and electric types. The manual structure is a rotating wheel 203 fixed on the top of the threaded rod 24. The operator rotates the rotating wheel 203 to drive the threaded rod 24 to rotate, and then the sliding member 22 drives the sprinkler head 28 to move up and down along the threaded rod 24 to achieve sprinkler height adjustment; the electric structure is a forward and reverse micro motor (not shown in the figure), a fixing frame 201 is set on the mounting plate 1, and the micro motor is installed on the fixing frame 201. The output shaft of the micro motor is fixedly connected to the threaded rod 24, and the threaded rod 24 is driven to rotate by starting the micro motor to achieve sprinkler height adjustment. The above-mentioned setting has a simple overall structure and is easy to operate. It can achieve precise irrigation for plants with different height requirements and effectively improve the quality of ecological restoration.
[0036] Combination Figure 3 , Figure 4 As shown, the first stirring component includes a first rotating shaft and a first stirring blade 32 thereon, and the second stirring component includes a second rotating shaft 35 and a second stirring blade 38 thereon, and the first rotating shaft and the second rotating shaft 35 are respectively connected with a driving gear 31 and a driven gear 37, and the upper end of the first rotating shaft is connected with a driving motor 34, and the driving gear 31 and the driven gear 37 are meshed and transmitted; a mounting frame 33 and a connecting frame 36 are provided on the mixing drum 39, and the two ends of the connecting frame 36 are respectively connected to fix the mounting frame 33 and the mixing drum 39, and the mounting frame 33 is used to support the driving motor 34 and the second rotating shaft 35, and the output shaft of the driving motor 34 passes through the mounting frame 33 and is fixed to the first rotating shaft through a coupling, and the second rotating shaft 35 is rotatably connected to the mounting frame 33; during specific operation, the driving motor 34 directly drives the first stirring component and the driving gear 31 to rotate, and then drives the driven gear 37 and the second stirring component to rotate through the meshing action, so as to realize the two-way stirring of the first stirring component and the second stirring component. The first stirring blades 32 are spaced apart along the circumference and axial direction of the first rotating shaft, and the second stirring blades 38 are distributed along the circumference of the second rotating shaft 35 and are continuous plates in the axial direction. Preferably, there are multiple second stirring components, which are arranged in a ring around the first stirring component. In this embodiment, there are three second stirring components, which are evenly arranged in a ring to increase the turbulence of the liquid in the mixing barrel 39 and make the mixing more uniform.
[0037] Through the above-mentioned arrangement, two-way stirring is achieved in the mixing barrel 39, so that the liquid can be mixed in multiple directions, ensuring that the various components in the fertilizer water (such as fertilizer, trace elements, water, etc.) are fully and evenly mixed, and the flow in opposite directions can enhance the turbulent effect of the liquid, effectively reduce the dead corners in the mixing container, ensure that the liquid in all areas can be effectively mixed, avoid local uneven concentration, and significantly improve the efficiency and quality of ecological restoration. At the same time, two-way stirring accelerates the mixing speed and shortens the mixing time.
[0038] In ecological restoration, water from nearby rivers and lakes is usually used to prepare fertilizer water to save irrigation costs. However, there are many impurities or algae in the water from rivers and lakes. If it is not filtered, it is easy to cause blockage inside the irrigation device. Frequent maintenance greatly affects the irrigation efficiency and increases the cost. To solve the above problems, this solution also provides multiple filtering mechanisms 4 on the mixing cylinder 39, combined with Figure 1 As shown, in this embodiment, there are three filtering mechanisms 4, which are distributed in a ring around the mixing cylinder 39. Multiple filtering mechanisms 4 can meet the simultaneous filtration of multiple liquids during fertilizer water preparation or multi-channel input filtration of a single liquid, saving time and improving preparation efficiency.
[0039] Combination Figure 5 , Figure 6 As shown, specifically, the filtering mechanism 4 includes a U-shaped guide plate 41, which is inclined downward toward the mixing barrel 39 and one end of which extends into the mixing barrel 39, and a filter 46 is detachably installed at one end of the guide plate 41 near the mixing barrel 39; the guide plate 41 is designed as an open groove with an opening at the upper end, which allows liquid or water flow to smoothly pass through the guide plate 41 into the interior of the mixing barrel 39 from various angles, greatly improving the flexibility and convenience of water flow or liquid transportation; and the open guide plate 41 can be used as an effective tool for rainwater collection. When it rains, rainwater can naturally flow into the guide plate 41 with an opening at the upper end for collection, so that water resources that may have been wasted are effectively collected and utilized, thereby saving existing water resources to a great extent. This is not only conducive to improving resource utilization efficiency, but also has positive significance for environmental protection, reduces dependence on traditional water resources, and conforms to the concept of sustainable development.
[0040] There are mounting grooves on both sides of the guide plate 41, and mounting blocks are provided on both sides of the filter 46. The filter 46 is assembled by inserting the mounting blocks into the mounting grooves. A handle 42 is also installed on the filter 46 for easy picking. A limit assembly is provided between the filter 46 and the guide plate 41. The limit assembly is symmetrically arranged on both sides of the filter 46. The limit assembly includes a limit member 43 and a limit rod 45 and a support column 44 respectively arranged on the guide plate 41 and the filter 46. The guide plate 41 is provided with a limit groove, and the limit rod 45 is inserted into the limit groove. When the limit member 43 needs to be replaced, it is only necessary to pull out the limit rod 45 and then take out the filter 46. The support column 44 is arranged on the side of the filter 46. The two ends of the limit member 43 are respectively provided with a mounting hole and a limit hole that cooperate with the support column 44 and the limit rod 45. The limit member 43 is whistle-shaped, and one end of the mounting hole is cylindrical, and one end of the limit hole is flat, and the two ends are smoothly transitioned and connected.
[0041] The above-mentioned arrangement not only fixes and strengthens the filter element 46 to ensure its stability, but also simplifies the overall structure of the filter mechanism 4. The filter element 46 can be quickly disassembled and assembled by disassembling and installing the limit member 43. The maintenance and replacement operation of the filter mechanism 4 is more convenient, which reduces the equipment maintenance cycle, does not excessively affect the normal use of the equipment, and ensures the efficiency of the ecological restoration project.
[0042] The specific implementation process is as follows:
[0043] During the specific irrigation operation, first, the various liquid raw materials required for preparing fertilizer water are input through the U-shaped guide plate 41, and the impurities and residues in the liquid raw materials are filtered through the filter element 46, and the fixed fertilizer particles are placed in the mixing barrel 39, and the drive motor 34 is started to enable the first stirring component and the second stirring component to achieve two-way stirring; then, according to the needs of the plants, the threaded rod 24 is rotated to drive the sliding part 22 to move the sprinkler head 28 up or down to adjust to a suitable sprinkler height; after the fertilizer water is evenly stirred and the irrigation height is fixed, the pump body 204 is started to transport the fertilizer water in the mixing barrel 39 to the sprinkler head 28 for irrigating the plants.
[0044] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. An easily adjustable ecological restoration irrigation device, comprising a mounting plate, a mixing and stirring mechanism and an irrigation mechanism are provided on the mounting plate, characterized in that: The mixing and stirring mechanism includes a mixing barrel and a first stirring component and a second stirring component therein, and the stirring directions of the two stirring components are opposite; the irrigation mechanism includes an irrigation component and a support and adjustment component, the irrigation component includes a sprinkler head and a connecting pipe, the connecting pipe connects the mixing barrel with the sprinkler head, the support and adjustment component includes a threaded rod rotatably connected to the mounting plate, a sliding member is threadedly connected to the threaded rod, and a connecting structure is provided on the sliding member to connect with the connecting pipe; the mixing barrel is also provided with a filtering mechanism, the filtering mechanism includes a U-shaped guide plate, the guide plate is inclined downward toward the mixing barrel and one end of the guide plate extends into the mixing barrel, and a filter is detachably installed on one end of the guide plate close to the mixing barrel.
2. The easily adjustable ecological restoration irrigation device according to claim 1 is characterized by: A limit assembly is provided between the filter element and the guide plate, and the limit assembly is symmetrically arranged on both sides of the filter element. The limit assembly includes a limit element and a limit rod and a support column respectively arranged on the guide plate and the filter element. The limit rod is inserted into the guide plate, and the support column is arranged on the side of the filter element. Both ends of the limit element are respectively provided with mounting holes and limit holes that cooperate with the support column and the limit rod.
3. The conveniently adjustable ecological restoration irrigation equipment according to claim 2 is characterized in that: There are multiple filtering mechanisms, which are distributed in a ring around the mixing cylinder.
4. The conveniently adjustable ecological restoration irrigation equipment according to claim 2 is characterized by: The limiting member is in the shape of a whistle, one end of the mounting hole is cylindrical, one end of the limiting hole is flat, and the two ends are smoothly transitionally connected.
5. The conveniently adjustable ecological restoration irrigation equipment according to claim 1 is characterized by: There are multiple second stirring components, which are arranged in a ring around the first stirring component.
6. The conveniently adjustable ecological restoration irrigation equipment according to claim 5 is characterized by: The first stirring component includes a first rotating shaft and a first stirring blade thereon, the second stirring component includes a second rotating shaft and a second stirring blade thereon, the first rotating shaft and the second rotating shaft are respectively connected with a driving gear and a driven gear, the end of the first rotating shaft is connected with a driving motor, and the driving gear and the driven gear are meshed for transmission; a mounting frame is provided on the mixing barrel, and the mounting frame is used to support the driving motor and the second rotating shaft.
7. The conveniently adjustable ecological restoration irrigation equipment according to claim 6 is characterized by: Telescopic support rods are symmetrically installed on both sides of the threaded rod at the bottom of the connection structure.
8. The easily adjustable ecological restoration irrigation device according to claim 7 is characterized by: The first stirring blades are distributed at intervals along the circumferential direction and the axial direction of the first rotating shaft, and the second stirring blades are distributed along the circumferential direction of the second rotating shaft and are continuous plate-shaped in the axial direction.
9. The conveniently adjustable ecological restoration irrigation equipment according to claim 8, characterized in that: A pump body is connected between the sprinkler head and the mixing cylinder, and a support seat is arranged between the pump body, the mixing cylinder and the mounting plate.
10. The conveniently adjustable ecological restoration irrigation equipment according to claim 9, characterized in that: A rotating structure for driving the driver to rotate is fixedly arranged on the top of the threaded rod.
Citation Information
Patent Citations
Ecological restoration irrigation equipment
CN220693996U