Manual lawn aerator

Abstract

The utility model discloses a manual lawn aerator. The aerator comprises a push rod, a supporting frame, rollers, a mounting wheel and wheels, the supporting frame is fixedly connected to the push rod, the two rollers are in transmission connection to the two sides of the supporting frame respectively, the mounting wheel is located between the two rollers and connected to the rollers so as to form an annular area, a plurality of punching needles are evenly distributed on the mounting wheel in the annular direction, and the punching needles extend out of the annular area. The wheels are in rolling connection with the supporting frame. By arranging the switchable wheels, when the aeration machine needs to move on the hard ground, the wheels can be in contact with the ground and the punching needle is separated from the ground by adjusting the direction of the push rod, and the friction force between the aeration machine and the hard ground is reduced and changed into rolling friction due to the design of the wheels, so that the motion resistance is reduced; an operator can push the aerator to move on the hard ground more easily and quickly, so that the moving efficiency of the aerator on the hard ground is improved, and the operation time is saved.

Description

Technical Field

[0001] This utility model relates to the field of aerator technology, and in particular to a manual lawn aerator. Background Technology

[0002] In the fields of landscaping and lawn maintenance, lawn aeration is an important maintenance measure. Aeration improves soil permeability and water permeability, promotes root growth and development, and enhances the lawn's resilience, thus maintaining its health and appearance. Manual lawn aerators, as a common lawn maintenance tool, are widely used in small lawns and home gardens due to their relatively simple operation and low cost.

[0003] Existing manual lawn aerators typically employ a specific structural design, featuring a spike in the center and rollers on both sides. In normal operation, the operator pushes the aerator across the lawn, the spike inserting into the soil to aerate the lawn; the rollers on either side provide support and facilitate movement, allowing the aerator to travel relatively smoothly across the lawn surface.

[0004] However, this existing design has significant drawbacks in practical use. Because the central spike protrudes from the rollers on both sides, problems arise when the lawn aerator needs to be moved or relocated on hard surfaces (such as concrete or stone pavements). Firstly, the protruding spike directly contacts the hard surface, greatly increasing the aerator's resistance and slowing its movement. This requires operators to exert more effort to push or lift the equipment, reducing efficiency and increasing workload. Secondly, the spike is easily damaged during intense friction with the hard surface. As a critical component of the lawn aerator, damage to the spike not only affects its normal aeration function, leading to poor aeration, but also requires time and cost for repair or replacement, increasing operating costs and maintenance complexity.

[0005] Therefore, how to improve the existing manual lawn aerator to solve the problem of its slow speed when moving on hard surfaces has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a manual lawn aerator.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This utility model embodiment provides a manual lawn aerator, including: a push rod, a support frame, rollers, mounting wheels, and wheels. The support frame is fixedly connected to the push rod. Two rollers are respectively driven and connected to both sides of the support frame. The mounting wheels are located between the two rollers and connected to the rollers to form an annular area. The mounting wheels have a plurality of perforating pins evenly distributed along the circumference, and the perforating pins extend out of the annular area. The wheels are rotatably connected to the support frame.

[0009] In one specific embodiment, the punching needle is hollow, and a notch is provided on the side of the punching needle.

[0010] In one specific embodiment, the top of the punching needle is provided with a tapered end.

[0011] In one specific embodiment, the tapered end is further fitted with a protective sleeve.

[0012] In one specific embodiment, the mounting wheel is provided with a mounting post, and the punching needle is connected to the mounting post by bolts.

[0013] In one specific embodiment, the roller is hollow and has a feed hole on its side.

[0014] In one specific embodiment, a drive shaft is provided at the center of the side of the roller, the support frame is provided with a bearing seat, and the bearing seat is provided with a rolling bearing corresponding to the drive shaft.

[0015] In one specific embodiment, the push rod is formed by combining several guide rods.

[0016] In one specific embodiment, the bottom of the push rod is further provided with a fixing plate, which is connected to the support frame.

[0017] In one specific embodiment, the top of the push rod is also provided with a handrail.

[0018] Compared with existing technologies, the advantages of this manual lawn aerator are as follows: By setting up switchable wheels, when it is necessary to move on hard ground, the direction of the push rod can be adjusted to make the wheels contact the ground while the aerator needles are disengaged. The wheel design significantly reduces the friction between the aerator and the hard ground, turning it into rolling friction, which greatly reduces the resistance to movement. Operators can move the aerator on hard ground more easily and quickly, improving the efficiency of the aerator on hard ground and saving operating time and labor costs. In addition, through the switching design of wheels and aerator needles, the aerator needles are disengaged from the ground when moving on hard ground, avoiding direct contact and friction between the aerator needles and the hard ground, thus effectively protecting the aerator needles, extending their service life, and reducing the operating cost and maintenance difficulty of the aerator.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A three-dimensional schematic diagram of the manual lawn aerator provided by this utility model;

[0022] Figure 2 A schematic diagram of the manual lawn aerator provided by this utility model in the aeration state;

[0023] Figure 3 A schematic diagram of the manual lawn aerator provided by this utility model in a moving state;

[0024] Figure 4 An exploded view of the manual lawn aerator provided by this utility model. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0032] See Figures 1 to 4The specific embodiment shown in this utility model discloses a manual lawn aerator, including: a push rod 10, a support frame 20, rollers 30, mounting wheels 40, and wheels 50. The support frame 20 is fixedly connected to the push rod 10. The two rollers 30 are respectively drivenly connected to both sides of the support frame 20. The mounting wheels 40 are located between the two rollers 30 and connected to the rollers 30 to form an annular area. The mounting wheels 40 have a plurality of perforating needles 60 evenly distributed along the circumference, and the perforating needles 60 extend out of the annular area. The wheels 50 are rotatably connected to the support frame 20.

[0033] Specifically, the support frame 20 is connected to the push rod 10 via welding, bolting, or other fixed connections to ensure a firm and stable connection that can withstand the force generated when the operator pushes the equipment. Rollers 30 are installed on both sides of the support frame 20, and the rollers 30 are connected to the support frame 20 via bearings or other transmission connectors, allowing the rollers 30 to rotate freely. The size and material of the rollers 30 can be selected according to the actual usage scenario; for example, medium-sized rubber rollers 30 with a certain degree of elasticity can be selected for ordinary lawns to adapt to the unevenness of the lawn surface. The mounting wheel 40 is placed between the two rollers 30 and connected to the rollers 30 via a specific connection structure (such as threads, clips, etc.), thus forming a ring-shaped area. Several mounting holes are evenly spaced circumferentially on the mounting wheel 40. The perforating needle 60 is installed in these holes via threaded connection, welding, or other methods, ensuring that the perforating needle 60 extends beyond the annular area formed by the mounting wheel 40 and the roller 30. The extension length of the perforating needle 60 can be adjusted according to factors such as the hardness of the lawn soil to ensure effective insertion into the soil for aeration. The wheel 50 is mounted on the support frame 20 via rolling connectors such as bearings. The position and angle of the wheel 50 should be designed reasonably so that it can smoothly contact the ground and bear the weight of the equipment when needed. The wheel 50 can be designed with an adjustable height structure, for example, through bolts and elongated holes, to adjust the contact state between the wheel 50 and the ground according to different usage requirements.

[0034] In other words, by setting up switchable wheels 50, when movement on hard surfaces is required, adjusting the direction of the push rod 10 allows the wheels 50 to contact the ground while simultaneously disengaging the perforated needles 60. The design of the wheels 50 significantly reduces the friction between the aerator and the hard surface, transforming it into rolling friction, greatly reducing movement resistance. This allows operators to move the aerator on hard surfaces more easily and quickly, improving its movement efficiency and saving operating time and labor costs. Furthermore, the switchable design of the wheels 50 and perforated needles 60, by disengaging the perforated needles 60 from the ground during movement on hard surfaces, avoids direct contact and friction between the perforated needles 60 and the hard surface, effectively protecting the perforated needles 60, extending their service life, and reducing the aerator's operating costs and maintenance difficulty. Moreover, switching between the wheels 50 and perforated needles 60 is achieved simply by adjusting the direction of the push rod 10; the operation is simple and easy to understand, requiring no complicated procedures or additional tools. Operators can quickly and easily switch the equipment's operating status according to the actual usage scenario (lawn aeration or hard ground movement), improving the equipment's ease of operation and flexibility, and better adapting to different working environments and needs. Furthermore, during lawn aeration, the lawn aerator brings the perforating needles 60 into contact with the ground while the wheels 50 leave the ground. At this time, the perforating needles 60 can be properly inserted into the soil, achieving effective aeration of the lawn. The numerous perforating needles 60 evenly distributed circumferentially on the wheels 40 ensure uniform aeration, improve soil aeration and water permeability, promote lawn root growth and development, guarantee lawn aeration effect, and meet the actual needs of lawn maintenance.

[0035] Furthermore, during aeration operation, if the operator needs to turn the aerator while pushing it forward, they only need to gently rotate the push rod 10 to one side. Since the perforating needle 60 serves as a fulcrum inserted into the soil, the entire aerator will rotate around the perforating needle 60 as its axis. In other words, using the perforating needle 60 as a turning fulcrum, the operator only needs to slightly rotate the push rod 10 to achieve the aerator's turning, and the turning action is quick and sensitive. Compared to traditional equipment that requires a large torque or complex operation to turn, this greatly improves the turning efficiency, allowing the operator to more easily control the aerator's direction of travel.

[0036] In one embodiment, the punch 60 is hollow, and a notch 61 is provided on the side of the punch 60.

[0037] Specifically, the perforating needle 60 is hollow with a notch 61 on its side, allowing soil entering the needle 60 to fall smoothly through the notch 61 during aeration. Compared to a traditional solid perforating needle 60, the hollow structure provides an additional channel for soil to fall, preventing soil accumulation inside the needle 60 and reducing the possibility of blockage. Even in relatively moist or sticky soil, the perforation process can be ensured smoothly, improving perforation efficiency. Furthermore, the hollow structure of the perforating needle 60 reduces the contact area with the soil when inserted, thus lowering insertion resistance. This makes it easier for operators to push the aerator, saving physical effort and improving operational convenience and efficiency. This advantage is particularly pronounced in harder soil. Additionally, the timely soil falling reduces the weight of soil accumulated in the perforating needle 60, lightening the overall burden on the equipment.

[0038] Preferably, the notch 61 is arranged along the direction of movement of the punch 60, so that when the punch 60 moves, the soil inside the punch 60 falls out of the notch 61 under its own gravity.

[0039] In one specific embodiment, the top of the punching needle 60 is provided with a tapered end 62.

[0040] Specifically, the shape of the tapered end 62 is designed based on the overall size and application of the perforating needle 60. The tapered end 62 is typically conical, with a sharp point at the top and a smooth transition at the bottom to the main body of the perforating needle 60. The cone angle of the tapered end 62 is a key parameter, generally controlled between 30 and 60 degrees. A smaller cone angle (around 30 degrees) makes the tapered end 62 sharper and easier to insert into harder soil; a larger cone angle (around 60 degrees) enhances the strength of the tapered end 62 while maintaining insertion performance, making it suitable for softer soil.

[0041] In other words, the sharp tip of the conical end 62 can quickly penetrate the soil surface, dispersing the soil's resistance to the perforating needle 60. Compared to the traditional flat-headed perforating needle 60, the conical end 62 makes the soil easier to separate when inserted, thus greatly reducing the force required for insertion. This makes it easier for operators to push the aerator during aeration operations, saving physical effort and improving operational efficiency. Due to the reduced insertion resistance, the perforating needle 60 can penetrate the soil more quickly, completing the perforation action. This allows the aerator to complete more perforations per unit time, accelerating the overall aeration process, especially suitable for aeration of large lawns. Furthermore, in harder soils, such as compacted soil or soil containing many stones, the sharpness of the conical end 62 is even more advantageous. It can concentrate force to penetrate the hard layer, allowing the perforating needle 60 to smoothly enter the deep soil, ensuring the normal operation of the aeration process. For soft soils, the conical end 62 can also be quickly inserted, avoiding problems such as the perforating needle 60 shifting or failing to penetrate the soil due to loose soil. Meanwhile, the tapered end 62 helps maintain the verticality of the punching needle 60, making the punched holes more regular and facilitating the uniform distribution of aeration gas.

[0042] In one embodiment, the tapered end 62 is further fitted with a protective sleeve.

[0043] Specifically, when not performing aeration operations, the conical end 62 of the perforated needle 60 is exposed, posing a risk of puncture wounds to operators. The protective sleeve effectively shields the sharp portion of the conical end 62, preventing accidental contact and injury to operators during handling, storage, or maintenance of the aerator, significantly improving operational safety. Furthermore, during the handling, transportation, or storage of the aerator, the conical end 62 of the perforated needle 60 is prone to collisions with other objects, leading to deformation or damage. The protective sleeve provides cushioning and protection, reducing the impact of collisions on the conical end 62, maintaining its shape and sharpness, and extending the service life of the perforated needle 60.

[0044] In one embodiment, the mounting wheel 40 is provided with a mounting post 41, and the punching needle 60 is connected to the mounting post 41 by bolts.

[0045] Specifically, the mounting column 41 can be integrally formed with the mounting wheel 40, or it can be fixed to the mounting wheel 40 by welding or other methods. The mounting column 41 is generally designed as a cylinder, and its diameter and length are determined according to the installation requirements of the perforating needle 60. The use of bolted connections simplifies the installation process of the perforating needle 60. Operators only need to place the perforating needle 60 onto the mounting column 41 and then tighten the bolts to complete the installation, greatly shortening the installation time and improving work efficiency. When it is necessary to replace the perforating needle 60 or perform equipment maintenance, simply loosen the bolts with a wrench to easily remove the perforating needle 60 from the mounting column 41. This detachable design facilitates equipment maintenance and reduces maintenance costs. Furthermore, the bolted connection has high connection strength, capable of withstanding various forces generated during the insertion and rotation of the perforating needle 60 into the soil, ensuring that the perforating needle 60 and the mounting column 41 will not loosen or fall off, guaranteeing the stability and reliability of the aerator during operation and improving the quality of aeration operations.

[0046] In one embodiment, the roller 30 is hollow and has a feed hole 31 on its side.

[0047] Specifically, when it is necessary to increase the weight of roller 30, the operator can use a water pipe or funnel to pour water into the hollow cavity of roller 30 through the feed hole 31. The amount of water poured in can be controlled according to actual needs. For example, by setting a scale line on the outside of roller 30, the volume of water poured in can be visually understood, thereby estimating the added weight. After pouring, the feed hole 31 is tightened with a threaded sealing plug to prevent water leakage. If a greater increase in the weight of roller 30 is required, sand can be poured in. The operator can use a funnel to slowly pour dry sand into the feed hole 31 while gently shaking roller 30 to distribute the sand evenly in the hollow cavity of roller 30. When the required weight is reached, the feed hole 31 is also sealed with a sealing plug. For easy subsequent adjustments, multiple feed holes 31 can be provided on roller 30 for pouring in and discharging sand respectively.

[0048] In other words, different types of lawns have different soil textures and compactions, requiring different aeration depths. For example, softer lawns may require shallower aeration, while firmer or more compacted lawns require deeper aeration. By adding water or sand to the rollers 30 to adjust the weight, the system can flexibly adapt to various lawn conditions, ensuring the aeration depth meets actual needs and improving aeration efficiency. Besides soil conditions, different lawn uses and growth stages may also require different aeration depths. For instance, sports turf may require deeper aeration to promote root growth and drainage, while ornamental turf may only need shallower aeration for surface ventilation. This technology allows the aerator to be precisely adjusted according to different aeration needs, improving the equipment's applicability and versatility.

[0049] In one embodiment, a drive shaft 70 is provided at the center of the side of the roller 30, and a bearing seat 80 is provided in the support frame 20. The bearing seat 80 is provided with a rolling bearing 90 corresponding to the drive shaft 70.

[0050] Specifically, a drive shaft 70 is installed at the center of the side of the roller 30 via welding, integral casting, or bolt connection. A bearing housing 80 is installed on the support frame 20 at the corresponding position of the drive shaft 70 via welding or bolt connection. A suitable rolling bearing 90 is selected based on factors such as the diameter, speed, load, and working environment of the drive shaft 70. Common rolling bearings 90 include deep groove ball bearings and tapered roller bearings.

[0051] In other words, the rolling bearing 90 replaces traditional sliding friction with rolling friction, significantly reducing the friction between the drive shaft 70 and the support frame 20. During aerator operation, this reduces energy loss due to friction, improves power transmission efficiency, and enables the aerator to work more efficiently, reducing energy consumption. Due to the reduced friction, the drive shaft 70 can rotate more smoothly with the support of the rolling bearing 90, thereby increasing the rotational speed of the roller 30 and accelerating the perforation speed of the perforating needle 60, thus improving the efficiency of lawn aeration operations.

[0052] In one embodiment, the push rod 10 is formed by a combination of several guide rods.

[0053] Specifically, the guide rods are typically made of high-strength, lightweight metal materials, such as aluminum alloy or stainless steel. Aluminum alloys offer advantages such as light weight and corrosion resistance, making them suitable for use in outdoor environments where the overall weight of the equipment is a concern. Stainless steel, on the other hand, has higher strength and better wear resistance, capable of withstanding greater pressure and friction, making it more suitable for harsher working environments. Each guide rod has an external thread machined at one end and an internal thread machined at the other. When the length of the push rod 10 needs to be increased, the external threaded end of one guide rod is screwed into the internal threaded end of another, and the combined length is adjusted by rotating the guide rods. This connection method is simple in structure, secure, and offers high precision in length adjustment, allowing for precise control of the push rod 10's length according to actual needs.

[0054] In one embodiment, the bottom of the push rod 10 is further provided with a fixing plate 100, which is connected to the support frame 20.

[0055] Specifically, the fixing plate 100 connects the push rod 10 and the support frame 20 into a whole, increasing the support points of the push rod 10 and making the push rod 10 more stable when subjected to external forces (such as the pushing force of the operator, the reaction force during drilling, etc.). This helps to improve the load-bearing capacity of the push rod 10, prevents the push rod 10 from bending, deforming or breaking under force, and ensures the normal operation of the equipment.

[0056] In one embodiment, the top of the push rod 10 is also provided with a handrail 110.

[0057] Specifically, the handle 110 can be connected to the push rod 10 by means of threads, snaps, or welding. The handle 110 makes it easier for operators to push the lawn aerator, thereby improving work efficiency.

[0058] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A manual lawn aerator, characterized in that, include: The device comprises a push rod, a support frame, rollers, mounting wheels, and wheels. The support frame is fixedly connected to the push rod. Two rollers are respectively driven and connected to both sides of the support frame. The mounting wheel is located between the two rollers and connected to the rollers to form an annular area. The mounting wheel has a plurality of perforating pins evenly distributed along the circumference, and the perforating pins extend out of the annular area. The wheels are rotatably connected to the support frame.

2. The manual lawn aerator according to claim 1, characterized in that, The punch is hollow, and a notch is provided on the side of the punch.

3. The manual lawn aerator according to claim 2, characterized in that, The top of the punching needle has a tapered end.

4. The manual lawn aerator according to claim 3, characterized in that, The tapered end is also fitted with a protective sleeve.

5. The manual lawn aerator according to claim 1, characterized in that, The mounting wheel is provided with a mounting post, and the punching needle is connected to the mounting post by bolts.

6. The manual lawn aerator according to claim 1, characterized in that, The roller is hollow and has a feed hole on the side.

7. The manual lawn aerator according to claim 1, characterized in that, A drive shaft is provided at the center of the side of the roller, and a bearing seat is provided on the support frame, with a rolling bearing corresponding to the drive shaft.

8. The manual lawn aerator according to claim 1, characterized in that, The push rod is formed by combining several guide rods.

9. The manual lawn aerator according to claim 1, characterized in that, The bottom of the push rod is also provided with a fixing plate, which is connected to the support frame.

10. The manual lawn aerator according to claim 1, characterized in that, The push rod is also equipped with a handrail at the top.

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