A high-pressure jet injection lawn loosening machine

Abstract

This invention provides a high-pressure jet injection lawn loosening machine, including a frame, wheel assembly, working unit, and control unit. The working unit includes an injection assembly, a water circuit assembly, and an air circuit drive assembly. The injection assembly includes an injection cylinder, a movable circular pressure plate sleeved on the lower end of the injection cylinder, and an injection tube fixed to the lower end of the injection cylinder and passing through the movable circular pressure plate. An elastic element is provided between the movable circular pressure plate and the cylinder seat of the injection cylinder. The water circuit assembly includes a water tank, a high-pressure pump, a high-pressure storage tank, and a switch valve. The outlet of the water tank is connected to the inlet of the high-pressure pump, and the outlet of the high-pressure pump is connected to the inlet of the high-pressure storage tank. The outlet of the high-pressure storage tank is connected to the injection tube via the switch valve. The air circuit drive assembly includes an air compressor, which is connected to the injection cylinder and used to drive the injection cylinder to move the injection tube in a reciprocating injection motion. This invention allows the site to be used immediately after operation without a recovery period and can be operated by a single person.

Description

Technical Field

[0001] This utility model relates to a lawn loosening machine, specifically a high-pressure jet injection type lawn loosening machine, belonging to the technical field of lawn maintenance equipment. Background Technology

[0002] Soil maintenance for professional turf such as golf courses and football fields plays a crucial role in their commercial value and performance. Proper treatment and maintenance of the turf surface and soil result in higher-quality lawns and create more aesthetically pleasing landscapes and ideal sports fields. Introducing soil conditioners, fertilizers, and fungicides into the soil, along with aeration, can effectively improve the soil's physical and chemical properties.

[0003] Currently, introducing materials into the soil or aerating it is usually done using mechanical aeration. Traditional aeration equipment has two main problems: First, the aeration depth is limited, usually only reaching a depth of about 10 centimeters, which cannot effectively address deep soil compaction or black soil layers, and has limited effect on promoting deep root development; Second, mechanical aeration causes significant damage to the surface of the lawn, often requiring the application of sand or topdressing after aeration, and 5 to 7 days of maintenance and recovery. During this period, the field cannot be used, reducing utilization and increasing maintenance costs.

[0004] Therefore, how to provide a lawn soil improvement device that causes minimal damage to the lawn surface, has a large working depth, and can be quickly put into use after the operation is an urgent technical problem to be solved in this field. Utility Model Content

[0005] Based on the above background, the purpose of this utility model is to provide a high-pressure jet injection type lawn loosening machine to solve the problems of insufficient working depth, large damage to the lawn surface, and long recovery time in existing lawn maintenance equipment.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] A high-pressure jet injection lawn loosening machine includes a frame, a wheel assembly disposed at the bottom of the frame, a working unit disposed on the frame, and a control unit;

[0008] The working unit includes an injection assembly, a water circuit assembly, and a pneumatic drive assembly. The injection assembly includes an injection cylinder, a movable circular pressure plate sleeved on the lower end of the injection cylinder, and an injection tube fixed to the lower end of the injection cylinder and passing through the movable circular pressure plate. An elastic element is provided between the movable circular pressure plate and the cylinder seat of the injection cylinder. The water circuit assembly includes a water tank, a high-pressure pump, a high-pressure storage tank, and a switching valve. The outlet of the water tank is connected to the inlet of the high-pressure pump, and the outlet of the high-pressure pump is connected to the inlet of the high-pressure storage tank. The outlet of the high-pressure storage tank is connected to the injection tube via the switching valve. The pneumatic drive assembly includes an air compressor, which is connected to the injection cylinder and used to drive the injection cylinder to move the injection tube in a reciprocating injection motion.

[0009] The control unit includes a controller and a solenoid valve for controlling the on / off state of the switching valve. The controller is electrically connected to the high-pressure pump, the air compressor, and the solenoid valve.

[0010] This high-pressure jet injection lawn loosening machine is equipped with a movable circular pressure plate and elastic components. Before the injection tube is inserted into the soil, the movable circular pressure plate can pre-press the lawn surface under the action of the elastic components, effectively preventing the reaction force generated by the high-pressure jet during the injection operation from causing the lawn surface to bulge, thereby protecting the flatness of the lawn and the root system from damage.

[0011] Preferably, the end of the injection tube is provided with four to six spray holes, the diameter of which is 0.50-1.20 mm.

[0012] Preferably, the working unit further includes an injection frame horizontally mounted on the vehicle frame, the injection assembly is mounted on the injection frame, and the injection frame is also provided with at least one lifting cylinder. The fixed end of the lifting cylinder is fixedly connected to the vehicle frame, and the moving end of the lifting cylinder is fixedly connected to the injection frame. The lifting cylinder is used to drive the injection frame to rise or fall relative to the vehicle frame.

[0013] By setting up an injection frame and lifting cylinder, multiple injection assemblies can be operated synchronously and lifted as a whole, which facilitates the movement of the high-pressure jet injection lawn loosening machine when it is not in operation, improving work efficiency and ease of use.

[0014] Preferably, the number of injection assemblies is four, and the four injection cylinders are equidistantly arranged on the injection frame.

[0015] By setting up four equally spaced injection assemblies, a wider area can be covered in a single operation, ensuring the uniformity of soil loosening and injection.

[0016] Preferably, the number of high-pressure liquid storage tanks is four, with each high-pressure liquid storage tank corresponding to one of the injection assemblies.

[0017] Each injection assembly is equipped with an independent high-pressure reservoir to ensure that each injection tube receives a sufficient supply of high-pressure liquid, guaranteeing the impact effect of each jet.

[0018] Preferably, the high-pressure jet turf loosener also includes a hydraulic drive mechanism for driving the wheel assembly, the hydraulic drive mechanism including a hydraulic pump driven by an engine and a hydraulic motor connected to the wheel assembly.

[0019] Preferably, the controller is configured to set and control the distance the high-pressure jet turf loosener travels after completing one injection.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] This utility model discloses a high-pressure jet injection lawn loosening machine. Based on the combination of a pneumatically driven injection tube and high-pressure jet injection, it is equipped with a flexible circular pressure plate with elastic elements. During operation, the flexible circular pressure plate first presses the ground to prevent the high-pressure liquid injection from causing bumps and damage to the lawn surface, thus protecting the flatness of the lawn and the root system. At the same time, the high-pressure jet method can inject liquid into the soil to a depth of 30-40 cm, effectively improving the deep soil. The entire process leaves only tiny pinholes on the lawn surface. After the operation is completed, it can be put into use quickly, greatly improving the site utilization rate and reducing labor and maintenance costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a rear-view three-dimensional structural schematic diagram of the present invention;

[0025] Figure 3 This is a right-view stereoscopic structural diagram of the present invention;

[0026] Figure 4 This is a left-view stereoscopic structural diagram of the present invention;

[0027] Figure 5 This is a schematic diagram of the injection cylinder structure of this utility model;

[0028] In the diagram: 1. Frame; 2. Front wheel; 3. Rear wheel; 4. Water tank; 5. Engine; 6. High-pressure pump; 7. High-pressure liquid reservoir; 8. Controller; 9. Air compressor; 10. Injection holder; 11. Solenoid valve; 12. Switch valve; 13. Injection cylinder; 14. Injection tube; 15. Lifting cylinder; 16. Operating handle; 17. Flexible circular pressure plate; 18. Travel control lever; 19. Main switch; 20. Pump switch; 21. Emergency stop button; 22. Injection button; 23. Control box. Detailed Implementation

[0029] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0030] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the field. Unless otherwise specified, the methods in the following embodiments are conventional methods in the field. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0031] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following detailed description, many specific details are set forth to facilitate explanation and provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may be practiced by those skilled in the art without these specific details.

[0032] An embodiment of this utility model discloses a high-pressure jet injection type lawn loosening machine, the structure of which is as follows: Figures 1-5 As shown, the vehicle includes a frame 1, a wheel assembly disposed at the bottom of the frame 1, a working unit disposed on the frame 1, and a control unit. The wheel assembly includes a front wheel 2 and a rear wheel 3, both of which are hinged to the bottom of the frame 1 for movement of the frame 1 relative to the ground surface.

[0033] The working unit includes the injection assembly, water circuit assembly, and air circuit drive assembly.

[0034] The injection assembly includes an injection cylinder 13, a movable circular pressure plate 17 fitted at the lower end of the injection cylinder 13, and an injection tube 14 fixed to the lower end of the injection cylinder 13 and passing through the movable circular pressure plate 17. An elastic element is provided between the movable circular pressure plate 17 and the cylinder seat of the injection cylinder 13. The end of the injection tube 14 has four to six nozzles with a nozzle diameter of 0.50-1.20 mm. The injection cylinder 13 is a pneumatic cylinder, and the hollow injection tube 14 is fixedly connected to the lower end of its cylinder body. The movable circular pressure plate 17 can slide along the axial direction of the injection tube 14 and is fitted at the lower part of the cylinder seat of the injection cylinder 13. Between the movable circular pressure plate 17 and the cylinder seat of the injection cylinder 13, a spring tube or compression spring is provided as an elastic element, which always applies a downward thrust to the movable circular pressure plate 17. This structure allows the movable circular pressure plate 17 to move independently of the injection tube 14 during operation, and to closely adhere to the uneven grass surface with the force of the elastic element, playing a key role in compaction and cushioning.

[0035] The water system assembly includes a water tank 4 for storing the liquid to be injected (such as clean water, nutrient solution, or diluted pesticide), a high-pressure pump 6 for generating high-pressure liquid, multiple high-pressure storage tanks 7 for stabilizing and storing the high-pressure liquid, and a switching valve 12. The outlet of the water tank 4 is connected to the inlet of the high-pressure pump 6, the outlet of the high-pressure pump 6 is connected to the inlet of the high-pressure storage tanks 7, and the outlet of the high-pressure storage tanks 7 is connected to the injection tube 14 via the switching valve 12. The function of the water system assembly is to generate and deliver high-pressure liquid. The liquid flows out of the water tank 4 and enters the inlet of the high-pressure pump 6 through a pipeline. The high-pressure pump 6 operates to pressurize the liquid to an extremely high pressure and then delivers it to the high-pressure storage tanks 7 for storage and pressure stabilization. The outlet of each high-pressure storage tank 7 is connected to a switching valve 12 controlled by a solenoid valve 11 through a high-pressure pipeline, and the outlet of the switching valve 12 is connected to the injection tube 14 in the corresponding injection assembly.

[0036] The pneumatic drive assembly includes an air compressor 9 that provides pneumatic power. The air compressor 9 is connected to the injection cylinder 13 and is used to drive the injection cylinder 13 to move the injection tube 14 in a reciprocating injection motion. The function of the pneumatic drive assembly is to provide mechanical power. The air compressor 9 generates compressed air, which is connected to each injection cylinder 13 and the lifting cylinder 15 that controls the lifting and lowering of the injection frame 10 through air pipes.

[0037] The working unit also includes an injection frame 10 horizontally mounted on the frame 1. Four identical injection assemblies are equidistantly mounted on the injection frame 10. The injection frame 10 is also equipped with two lifting cylinders 15. The fixed end of the lifting cylinder 15 is fixedly connected to the frame 1, and the moving end of the lifting cylinder 15 is fixedly connected to the injection frame 10. The lifting cylinders 15 are used to drive the injection frame 10 to rise or fall relative to the frame 1. By setting up the injection frame 10 and lifting cylinders 15, multiple injection assemblies can be operated synchronously and lifted as a whole, facilitating the movement of the high-pressure jet injection lawn loosening machine when not in operation, improving work efficiency and ease of use. There are also four high-pressure storage tanks 7, each corresponding to one injection assembly. Equipping each injection assembly with an independent high-pressure storage tank 7 ensures that each injection tube 14 receives a sufficient supply of high-pressure liquid, guaranteeing the impact effect of each jet.

[0038] The control unit includes a controller 8 and a solenoid valve 11 for controlling the on / off state of the switching valve 12. The controller 8 is electrically connected to the high-pressure pump 6, the air compressor 9, and the solenoid valve 11. The automated operation of this invention is achieved through the control unit. The operator operates the machine by using the controller 8 on the handrail 16. The controller 8 integrates a travel control lever 18, a main switch 19, a pump switch 20, an emergency stop button 21, and an injection button 22. After receiving the operation command, the controller 8 controls the start / stop and operation of the engine 5, the high-pressure pump 6, the air compressor 9, and each solenoid valve 11 via electrical signals, thereby coordinating the operation of the entire machine. Furthermore, the controller 8 is also configured to set and control the distance traveled by the high-pressure jet injection lawn loosener after one injection.

[0039] The high-pressure jet turf loosener also includes a hydraulic drive mechanism for driving the wheel assembly, which includes a hydraulic pump driven by engine 5 and a hydraulic motor connected to the wheel assembly.

[0040] The working process of this high-pressure jet injection lawn loosening machine is as follows:

[0041] Engine 5 is started, and it simultaneously drives high-pressure pump 6, air compressor 9, and hydraulic pump for mobility via a transmission mechanism. The operator presses pump switch 20, and high-pressure pump 6 begins operation, pressurizing the liquid in water tank 4 and filling each high-pressure storage tank 7, putting the water system into high-pressure standby mode. Simultaneously, air compressor 9 provides compressed air to the air system.

[0042] Drive the equipment to the starting position using the travel control lever 18, then press the injection button 22 to start the injection cycle. The controller 8 first issues a command to activate the lifting cylinder 15, which smoothly lowers the entire injection frame 10 until the four movable circular pressure plates 17 are pressed firmly onto the lawn surface by their respective elastic elements.

[0043] The controller 8 then sends commands to the four injection cylinders 13, causing the piston rods of the injection cylinders 13 to extend rapidly, driving the slender injection tubes 14 to vertically pierce the soil to the preset depth. During this process, the movable circular pressure plate 17 maintains a constant pressure on the ground.

[0044] Once the injection tube 14 reaches the predetermined depth, the controller 8 immediately sends an opening signal to the four solenoid valves 11. The solenoid valves 11 then drive their controlled switching valves 12 to open instantaneously. The high-pressure liquid stored in the high-pressure storage tank 7 is immediately sprayed laterally into the surrounding soil in the form of a high-speed jet through multiple nozzles at the end of the injection tube 14, creating a powerful impact on the deeply compacted soil, thus loosening the soil and injecting the liquid. The spraying time is precisely set by the controller 8, typically a fraction of a second.

[0045] After spraying is complete, controller 8 immediately sends a shut-off signal to solenoid valve 11, closing switch valve 12 and cutting off the high-pressure liquid. Subsequently, controller 8 instructs injection cylinder 13 to reverse, pulling injection tube 14 out of the soil. Next, lifting cylinder 15 actuates, raising the entire injection frame 10 to a position off the ground. Finally, the high-pressure jet-type lawn loosening machine is driven forward a short distance, preparing for the next injection cycle. This process is repeated to achieve efficient, grid-like, and uniform loosening and liquid injection operations for large areas of lawn.

[0046] The injection tube 14 of this high-pressure jet-type lawn loosening machine can penetrate up to 30 cm into the soil, and the liquid can penetrate up to 40 cm, effectively solving the problem of insufficient operating depth of traditional equipment. At the same time, due to the pre-compression effect of the flexible circular pressure plate 17 and the minimally invasive injection method, the damage to the lawn surface is minimal, avoiding lawn bulging and root damage. The site can be used immediately after operation without a recovery period, significantly improving site utilization and economic benefits. Moreover, it can be operated by a single person, greatly saving labor costs.

[0047] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A high-pressure jet injection type lawn loosening machine, characterized in that: The high-pressure jet injection lawn loosening machine includes a frame (1), a wheel assembly located at the bottom of the frame (1), a working unit located on the frame (1), and a control unit; The working unit includes an injection assembly, a water circuit assembly, and a pneumatic drive assembly; the injection assembly includes an injection cylinder (13), a movable circular pressure plate (17) sleeved on the lower end of the injection cylinder (13), and an injection tube (14) fixed to the lower end of the injection cylinder (13) and passing through the movable circular pressure plate (17), with an elastic element provided between the movable circular pressure plate (17) and the cylinder seat of the injection cylinder (13); the water circuit assembly includes a water tank (4), a high-pressure pump (6), a high-pressure liquid storage tank (7), and an open... The valve (12) is closed, the outlet of the water tank (4) is connected to the inlet of the high-pressure pump (6), the outlet of the high-pressure pump (6) is connected to the inlet of the high-pressure liquid storage tank (7), and the outlet of the high-pressure liquid storage tank (7) is connected to the injection tube (14) via the switch valve (12); the air circuit drive assembly includes an air compressor (9), the air compressor (9) is connected to the injection cylinder (13), and is used to drive the injection cylinder (13) to drive the injection tube (14) to perform reciprocating injection motion; The control unit includes a controller (8) and a solenoid valve (11) for controlling the opening and closing of the switching valve (12). The controller (8) is electrically connected to the high-pressure pump (6), the air compressor (9) and the solenoid valve (11).

2. The high-pressure jet injection lawn loosening machine according to claim 1, characterized in that: The end of the injection tube (14) is provided with four to six spray holes, the diameter of which is 0.50-1.20 mm.

3. The high-pressure jet injection lawn loosening machine according to claim 1, characterized in that: The working unit also includes an injection frame (10) horizontally mounted on the frame (1). The injection assembly is mounted on the injection frame (10). The injection frame (10) is also provided with at least one lifting cylinder (15). The fixed end of the lifting cylinder (15) is fixedly connected to the frame (1), and the moving end of the lifting cylinder (15) is fixedly connected to the injection frame (10). The lifting cylinder (15) is used to drive the injection frame (10) to rise or fall relative to the frame (1).

4. A high-pressure jet injection type lawn loosening machine according to claim 3, characterized in that: The number of injection assemblies is four, and the four injection cylinders (13) are equidistantly arranged on the injection frame (10).

5. A high-pressure jet injection type lawn loosening machine according to claim 4, characterized in that: The number of high-pressure liquid storage tanks (7) is four, and each high-pressure liquid storage tank (7) corresponds to one of the injection assemblies.

6. A high-pressure jet injection type lawn loosening machine according to claim 1, characterized in that: The high-pressure jet turf loosener also includes a hydraulic drive mechanism for driving the wheel assembly, the hydraulic drive mechanism including a hydraulic pump driven by an engine (5) and a hydraulic motor connected to the wheel assembly.

7. A high-pressure jet injection type lawn loosening machine according to claim 1, characterized in that: The controller (8) is configured to set and control the distance the high-pressure jet turf loosener travels after completing one injection.

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